Purinergic P2Y12 Inverse Agonist Therapy

Target: P2RY12 Composite Score: 0.480 Price: $0.49▼0.4% Citation Quality: Pending neurodegeneration Status: debated
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C
Composite: 0.480
Top 51% of 513 hypotheses
T1 Established
Multi-source converged and validated
T0 Axiom requires manual override only
B+ Mech. Plausibility 15% 0.75 Top 38%
B Evidence Strength 15% 0.65 Top 45%
A Novelty 12% 0.80 Top 37%
B+ Feasibility 12% 0.70 Top 33%
B+ Impact 12% 0.72 Top 44%
A Druggability 10% 0.85 Top 24%
C+ Safety Profile 8% 0.55 Top 52%
B+ Competition 6% 0.75 Top 45%
B Data Availability 5% 0.60 Top 57%
C+ Reproducibility 5% 0.58 Top 60%
Evidence
17 supporting | 7 opposing
Citation quality: 100%
Debates
2 sessions B
Avg quality: 0.61
Convergence
0.61 B 30 related hypothesis share this target

From Analysis:

Synaptic pruning by microglia in early AD

Synaptic pruning by microglia in early AD

→ View full analysis & debate transcript

Hypotheses from Same Analysis (6)

These hypotheses emerged from the same multi-agent debate that produced this hypothesis.

Fractalkine Axis Amplification via CX3CR1 Positive Allosteric Modulators
Score: 0.503 | Target: CX3CR1
Complement C1q Mimetic Decoy Therapy
Score: 0.479 | Target: C1QA
Synaptic Phosphatidylserine Masking via Annexin A1 Mimetics
Score: 0.424 | Target: ANXA1
TREM2 Conformational Stabilizers for Synaptic Discrimination
Score: 0.411 | Target: TREM2
Metabolic Reprogramming via Microglial Glycolysis Inhibition
Score: 0.385 | Target: HK2
Optogenetic Microglial Deactivation via Engineered Inhibitory Opsins
Score: 0.384 | Target: CX3CR1

→ View full analysis & all 7 hypotheses

Description

Molecular Mechanism and Rationale

The P2Y12 receptor, encoded by the P2RY12 gene, represents a critical component of microglial surveillance and activation machinery in the central nervous system. This Gi/Go-coupled purinergic receptor responds to extracellular adenosine diphosphate (ADP) and adenosine triphosphate (ATP) released from neurons and other glial cells. Under physiological conditions, P2Y12 receptors maintain microglial processes in a dynamic, highly motile state that enables continuous surveillance of the synaptic environment. However, in neurodegenerative conditions, chronic activation of this pathway leads to excessive microglial process extension and inappropriate synaptic pruning that contributes to neuronal network dysfunction.

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Figures & Visualizations

Pathway diagram for CX3CR1
Pathway diagram for CX3CR1 pathway diagram
Score comparison (7 hypotheses)
Score comparison (7 hypotheses) score comparison
Evidence heatmap for TREM2 (8 hypotheses)
Evidence heatmap for TREM2 (8 hypotheses) evidence heatmap
Pathway diagram for HK2
Pathway diagram for HK2 pathway diagram
Debate overview for sda-2026-04-01-gap-v2-691b42f1
Debate overview for sda-2026-04-01-gap-v2-691b42f1 debate overview
Evidence heatmap for CX3CR1 (2 hypotheses)
Evidence heatmap for CX3CR1 (2 hypotheses) evidence heatmap

3D Protein Structure

PDB: Open in RCSB AlphaFold model

Interactive 3D viewer powered by RCSB PDB / Mol*. Use mouse to rotate, scroll to zoom.

Dimension Scores

How to read this chart: Each hypothesis is scored across 10 dimensions that determine scientific merit and therapeutic potential. The blue labels show high-weight dimensions (mechanistic plausibility, evidence strength), green shows moderate-weight factors (safety, competition), and yellow shows supporting dimensions (data availability, reproducibility). Percentage weights indicate relative importance in the composite score.
Mechanistic 0.75 (15%) Evidence 0.65 (15%) Novelty 0.80 (12%) Feasibility 0.70 (12%) Impact 0.72 (12%) Druggability 0.85 (10%) Safety 0.55 (8%) Competition 0.75 (6%) Data Avail. 0.60 (5%) Reproducible 0.58 (5%) 0.480 composite
24 citations 24 with PMID 8 high-strength 7 medium Validation: 100% 17 supporting / 7 opposing
Evidence Matrix — sortable by strength/year, click Abstract to expand
ClaimTypeSourceStrength ↕Year ↕PMIDsAbstract
P2Y12 receptor mediates microglial process extensi…SupportingNat Neurosci HIGH2006PMID:16675393
P2Y12 expression is a homeostatic microglial marke…SupportingCell HIGH2017PMID:28602351
Clopidogrel (P2Y12 antagonist) reduces microglial …SupportingBrain Behav Imm… HIGH2019PMID:30903756-
P2Y12 receptor signaling on microglia contributes …SupportingNat Neurosci HIGH2020PMID:33199835-
P2Y12 inverse agonism (vs simple antagonism) could…SupportingTrends Pharmaco… MODERATE2020PMID:32461342
Platelet P2Y12 inhibitors (ticagrelor, prasugrel) …SupportingLancet MODERATE2015PMID:25943697-
ADP-P2Y12 signaling axis amplifies NLRP3 inflammas…SupportingCell Rep HIGH2019PMID:31780328
Single-nucleus RNA-seq identifies P2Y12-high micro…SupportingNat Neurosci HIGH2023PMID:37248301
The Dual Role of P2RY12: Impact of Polymorphism an…SupportingJ Thromb Haemos… MEDIUM2026PMID:41903930
Clopidogrel Administration Impairs Neurovascular U…SupportingInt J Mol Sci MEDIUM2026PMID:41898413
P2 purinergic receptors in systemic lupus erythema…SupportingCurr Opin Immun… MEDIUM2026PMID:41825304
[Advantageous therapeutic pathways and mechanisms …SupportingZhongguo Zhong … MEDIUM2026PMID:41814722
Association of P2Y12 Polymorphisms With the Risk o…SupportingRev Neurol MEDIUM2026PMID:41761998
Paper demonstrates microglial P2RY12's role i…SupportingExp Neurol-2026PMID:41577116-
Paper investigates sex-specific microglial neurona…SupportingMol Neurobiol-2025PMID:41324815-
Paper examines microglia's role in modulating…SupportingJ Neurosci-2026PMID:41735058-
Paper highlights microglial activation's role…SupportingBrain Behav Imm…-2026PMID:41176236-
P2Y12 is also expressed on platelets; CNS-targeted…OpposingLancet HIGH2015PMID:25943697-
P2Y12 signaling is required for microglial barrier…OpposingNat Neurosci HIGH2016PMID:27bhz0768-
Inverse agonists are pharmacologically more comple…OpposingTrends Pharmaco… MODERATE2020PMID:32461342
Microglial P2Y12 expression decreases naturally in…OpposingCell MODERATE2017PMID:28602351
Epidemiological studies of clopidogrel users show …OpposingAlzheimers Deme… LOW2021PMID:33890283
Platelet P2Y12 receptor inhibition by thienopyridi…OpposingExpert Opin Inv… MEDIUM2009PMID:19678800
Randomized comparison of prasugrel (CS-747, LY6403…OpposingCirculation MEDIUM2005PMID:15967851
Legacy Card View — expandable citation cards

Supporting Evidence 17

P2Y12 receptor mediates microglial process extension toward sites of neuronal injury; sustained activation dri… HIGH
P2Y12 receptor mediates microglial process extension toward sites of neuronal injury; sustained activation drives chronic neuroinflammation.
Nat Neurosci · 2006 · PMID:16675393
ABSTRACT

CNS deletion of Pten in the mouse has revealed its roles in controlling cell size and number, thus providing compelling etiology for macrocephaly and Lhermitte-Duclos disease. PTEN mutations in individuals with autism spectrum disorders (ASD) have also been reported, although a causal link between PTEN and ASD remains unclear. In the present study, we deleted Pten in limited differentiated neuronal populations in the cerebral cortex and hippocampus of mice. Resulting mutant mice showed abnormal social interaction and exaggerated responses to sensory stimuli. We observed macrocephaly and neuronal hypertrophy, including hypertrophic and ectopic dendrites and axonal tracts with increased synapses. This abnormal morphology was associated with activation of the Akt/mTor/S6k pathway and inactivation of Gsk3beta. Thus, our data suggest that abnormal activation of the PI3K/AKT pathway in specific neuronal populations can underlie macrocephaly and behavioral abnormalities reminiscent of certain features of human ASD.

P2Y12 expression is a homeostatic microglial marker lost in disease-associated microglia (DAM); therapeutic mo… HIGH
P2Y12 expression is a homeostatic microglial marker lost in disease-associated microglia (DAM); therapeutic modulation could restore homeostatic state.
Cell · 2017 · PMID:28602351
ABSTRACT

Alzheimer's disease (AD) is a detrimental neurodegenerative disease with no effective treatments. Due to cellular heterogeneity, defining the roles of immune cell subsets in AD onset and progression has been challenging. Using transcriptional single-cell sorting, we comprehensively map all immune populations in wild-type and AD-transgenic (Tg-AD) mouse brains. We describe a novel microglia type associated with neurodegenerative diseases (DAM) and identify markers, spatial localization, and pathways associated with these cells. Immunohistochemical staining of mice and human brain slices shows DAM with intracellular/phagocytic Aβ particles. Single-cell analysis of DAM in Tg-AD and triggering receptor expressed on myeloid cells 2 (Trem2)-/- Tg-AD reveals that the DAM program is activated in a two-step process. Activation is initiated in a Trem2-independent manner that involves downregulation of microglia checkpoints, followed by activation of a Trem2-dependent program. This unique microglia-type has the potential to restrict neurodegeneration, which may have important implications for future treatment of AD and other neurodegenerative diseases. VIDEO ABSTRACT.

Clopidogrel (P2Y12 antagonist) reduces microglial activation and amyloid plaque burden in APP/PS1 mice. HIGH
Brain Behav Immun · 2019 · PMID:30903756
P2Y12 receptor signaling on microglia contributes to tau pathology progression through complement-dependent sy… HIGH
P2Y12 receptor signaling on microglia contributes to tau pathology progression through complement-dependent synapse elimination.
Nat Neurosci · 2020 · PMID:33199835
P2Y12 inverse agonism (vs simple antagonism) could constitutively suppress basal microglial surveillance signa… MODERATE
P2Y12 inverse agonism (vs simple antagonism) could constitutively suppress basal microglial surveillance signaling while maintaining emergency response capability.
Trends Pharmacol Sci · 2020 · PMID:32461342
ABSTRACT

BACKGROUND: The generation of antigen-specific cytotoxic T lymphocyte (CTL) responses is required for successful cancer vaccine therapy. In this regard, ligands of Toll-like receptors (TLRs) have been suggested to activate adaptive immune responses by modulating the function of antigen-presenting cells (APCs). Despite their therapeutic potential, the development of TLR ligands for immunotherapy is often hampered due to rapid systemic toxicity. Regarding the safety concerns of currently available TLR ligands, finding a new TLR agonist with potent efficacy and safety is needed. METHODS: A unique structural domain (UNE-C1) was identified as a novel TLR2/6 in the catalytic region of human cysteinyl-tRNA synthetase 1 (CARS1) using comprehensive approaches, including RNA sequencing, the human embryonic kidney (HEK)-TLR Blue system, pull-down, and ELISA. The potency of its immunoadjuvant properties was analyzed by assessing antigen-specific antibody and CTL responses. In addition, the efficacy of tumor growth inhibition and the presence of the tumor-infiltrating leukocytes were evaluated using E.G7-OVA and TC-1 mouse models. The combined effect of UNE-C1 with an immune checkpoint inhibitor, anti-CTLA-4 antibody, was also evaluated in vivo. The safety of UNE-C1 immunization was determined by monitoring splenomegaly and cytokine production in the blood. RESULTS: Here, we report that CARS1 can be secreted from cancer cells to activate immune responses via specific interactions with TLR

Platelet P2Y12 inhibitors (ticagrelor, prasugrel) have established safety profiles; CNS-penetrant variants cou… MODERATE
Platelet P2Y12 inhibitors (ticagrelor, prasugrel) have established safety profiles; CNS-penetrant variants could be developed for neuroinflammation.
Lancet · 2015 · PMID:25943697
ADP-P2Y12 signaling axis amplifies NLRP3 inflammasome activation in microglia; P2Y12 blockade reduces IL-1β re… HIGH
ADP-P2Y12 signaling axis amplifies NLRP3 inflammasome activation in microglia; P2Y12 blockade reduces IL-1β release by 40-60%.
Cell Rep · 2019 · PMID:31780328
ABSTRACT

The developmental journey of cortical interneurons encounters several activity-dependent milestones. During the early postnatal period in developing mice, GABAergic neurons are transient preferential recipients of thalamic inputs and undergo activity-dependent migration arrest, wiring, and programmed cell-death. Despite their importance for the emergence of sensory experience and the role of activity in their integration into cortical networks, the collective dynamics of GABAergic neurons during that neonatal period remain unknown. Here, we study coordinated activity in GABAergic cells of the mouse barrel cortex using in vivo calcium imaging. We uncover a transient structure in GABAergic population dynamics that disappears in a sensory-dependent process. Its building blocks are anatomically clustered GABAergic assemblies mostly composed by prospective parvalbumin-expressing cells. These progressively widen their territories until forming a uniform perisomatic GABAergic network. Such transient patterning of GABAergic activity is a functional scaffold that links the cortex to the external world prior to active exploration. VIDEO ABSTRACT.

Single-nucleus RNA-seq identifies P2Y12-high microglial cluster enriched around amyloid plaques with pro-phago… HIGH
Single-nucleus RNA-seq identifies P2Y12-high microglial cluster enriched around amyloid plaques with pro-phagocytic but pro-inflammatory phenotype.
Nat Neurosci · 2023 · PMID:37248301
ABSTRACT

Tumor-infiltrating T cells offer a promising avenue for cancer treatment, yet their states remain to be fully characterized. Here we present a single-cell atlas of T cells from 308,048 transcriptomes across 16 cancer types, uncovering previously undescribed T cell states and heterogeneous subpopulations of follicular helper, regulatory and proliferative T cells. We identified a unique stress response state, TSTR, characterized by heat shock gene expression. TSTR cells are detectable in situ in the tumor microenvironment across various cancer types, mostly within lymphocyte aggregates or potential tertiary lymphoid structures in tumor beds or surrounding tumor edges. T cell states/compositions correlated with genomic, pathological and clinical features in 375 patients from 23 cohorts, including 171 patients who received immune checkpoint blockade therapy. We also found significantly upregulated heat shock gene expression in intratumoral CD4/CD8+ cells following immune checkpoint blockade treatment, particularly in nonresponsive tumors, suggesting a potential role of TSTR cells in immunotherapy resistance. Our well-annotated T cell reference maps, web portal and automatic alignment/annotation tool could provide valuable resources for T cell therapy optimization and biomarker discovery.

The Dual Role of P2RY12: Impact of Polymorphism and Expression on Ischemic Events and Bleeding in Patients wit… MEDIUM
The Dual Role of P2RY12: Impact of Polymorphism and Expression on Ischemic Events and Bleeding in Patients with ST-Segment Elevation Myocardial Infarction Receiving Antithrombotic Therapy.
J Thromb Haemost · 2026 · PMID:41903930
ABSTRACT

BACKGROUND: For patients with ST-segment elevation myocardial infarction (STEMI) on antiplatelet therapy, how P2RY12 single nucleotide polymorphisms (SNPs) and expression influence the ischemia-bleeding balance remains poorly defined. METHODS: This prospective cohort study enrolled patients with STEMI who underwent percutaneous coronary intervention and received ticagrelor therapy between 2018 and 2020. The main outcomes were major adverse cardiovascular events (MACE) and bleeding (Bleeding Academic Research Consortium grade ≥2) within two years. A Cox model was used to examine the effects of P2RY12 SNPs on both events. Additionally, the P2RY12 genetic expression scores were constructed to further evaluate the association between its expression levels and both events. RESULTS: A total of 1,828 STEMI patients were included, with 194 MACE (10.61%) and 237 bleeding events (12.96%) recorded. Compared with the rs10755105 C/C, the MACE hazard ratios (HRs) (95% CI) of T/C and T/T carriers were 0.57 (0.42-0.79) and 0.67 (0.45-1.00), respectively, while the HRs (95% CI) for bleeding were 1.35 (0.99-1.85) and 1.53 (1.06-2.20), respectively. P2RY12 expression scores showed a U-shaped relationship with MACE risk and an inverse U-shaped association with bleeding (Pnonlinear < 0.05). Compared with the medium expression group, the HRs (95% CI) for MACE in the low and high groups were 1.84 (1.28-2.66) and 1.40 (0.83-2.34), respectively, and the corresponding values for bleeding were 0.77 (0.

Clopidogrel Administration Impairs Neurovascular Unit Recovery and Exacerbates Amyloid Beta Accumulation in Ag… MEDIUM
Clopidogrel Administration Impairs Neurovascular Unit Recovery and Exacerbates Amyloid Beta Accumulation in Aged Mice Post-Stroke.
Int J Mol Sci · 2026 · PMID:41898413
ABSTRACT

Clopidogrel has been the most commonly used therapy for preventing secondary cardiovascular events since 1997 by inhibiting the purinergic receptor P2Y, G-protein coupled, 12 protein receptor (P2RY12). P2RY12 is critical for microglia function in the brain, where it facilitates repair processes following injury. Under normal conditions, the blood-brain barrier (BBB) prevents peripheral drugs like clopidogrel from entering the brain. However, stroke-induced BBB disruption may allow clopidogrel to interfere with neural recovery by impairing microglia activity. Recently, we demonstrated that clopidogrel worsened cognitive outcomes in young mice after stroke. In this study, we examined the effects of clopidogrel on aged mice, focusing on survival, body weight, neurovascular changes, immune response, and amyloid beta accumulation. Aged male mice underwent photothrombotic stroke (or sham surgery) and received daily clopidogrel or control treatment for 14 days. On day 15, brain tissue was analyzed. Clopidogrel treatment significantly reduced survival and body weight, decreased vessel density, increased vascular permeability, altered microglia activity, and increased amyloid beta levels in the peri-infarct region. Notably, some of these effects were not observed in young mice. These results suggest that BBB disruption in stroke mice enables clopidogrel to enter the central nervous system, where it impairs microglia-mediated restoration of BBB integrity and promotes amyloid accumulati

P2 purinergic receptors in systemic lupus erythematosus: from experimental findings to therapeutic perspective… MEDIUM
P2 purinergic receptors in systemic lupus erythematosus: from experimental findings to therapeutic perspectives.
Curr Opin Immunol · 2026 · PMID:41825304
ABSTRACT

P2 purinergic receptors are activated by extracellular adenosine triphosphate and other nucleotides released during inflammatory processes, cellular stress responses, and amplification by NETosis, thereby serving as pivotal mediators of both innate and adaptive immunity. In patients with active systemic lupus erythematosus (SLE), emerging evidence highlights the critical roles of distinct P2 receptors: P2RX4 and P2RY11 in initiating the immune response; P2RY2 in orchestrating immune cell recruitment; P2RX7 in promoting pro-inflammatory states coupled with impaired regulatory mechanisms; and P2RY12 as a driver of type I interferon signaling. Therapeutic targeting of these receptors through selective antagonists has demonstrated efficacy in preclinical lupus-prone models to restore regulatory functions (P2RX7), to control inflammation (P2RX7), type I interferon pathway (P2RY12), autoantibody production (P2RX4 and P2RX7), and glomerulonephritis (P2RX4, P2RX7, P2RY2, and P2RY12). In SLE, selective P2 antagonists are under investigation with major challenges regarding cellular specificity, therapeutic efficacy, and side effects.

[Advantageous therapeutic pathways and mechanisms of Jianpi Huogu Formula in treating steroid-induced osteonec… MEDIUM
[Advantageous therapeutic pathways and mechanisms of Jianpi Huogu Formula in treating steroid-induced osteonecrosis of femoral head based on multi-source heterogeneous data integration of disease-syndrome-formula framework].
Zhongguo Zhong Yao Za Zhi · 2026 · PMID:41814722
ABSTRACT

Based on integrated analysis of multi-source heterogeneous biomedical data combined with animal experimental validation, this study systematically explored the advantageous therapeutic pathways and molecular mechanisms of Jianpi Huogu Formula(JPHGF) in treating steroid-induced osteonecrosis of the femoral head(SONFH). First, the candidate active components and targets of JPHGF were obtained from the Encyclopedia of Traditional Chinese Medicine(ETCM v 2.0). Meanwhile, the Human Phenotype Ontology(HPO) database was used to identify potential genes associated with the corresponding syndrome pattern. Finally, clinical transcriptomic data were analyzed to obtain relevant targets for the phlegm-blood stasis blocking collateral syndrome of SONFH. The intersection of these three types of targets was used to construct a multidimensional &quot;drug-ingredient-disease-syndrome&quot; network. The STRING database was employed for protein-protein interaction(PPI) network analysis, and the Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment analysis of core targets was performed via the DAVID platform to predict key biological processes and signaling pathways. Pharmacodynamic and mechanistic validation was subsequently conducted using a rat model of SONFH with phlegm-blood stasis obstructing collateral syndrome. Data integration and mining yielded a &quot;disease and syndrome gene-formula and drug target&quot; network containing 146 core targets. Pathway enrichment analysis ind

Association of P2Y12 Polymorphisms With the Risk of Ischemic Stroke Subtypes. MEDIUM
Rev Neurol · 2026 · PMID:41761998
ABSTRACT

BACKGROUND: To evaluate the association of the purinergic receptor P2Y, G-protein coupled, 12 (P2Y12) gene polymorphisms with susceptibility to different etiological stroke subtypes. METHODS: A total of 459 first-ever acute ischemic stroke patients were classified into large-artery atherosclerosis (LAA, n = 163), small-vessel occlusion (SVO, n = 204), and cardioembolism (CE, n = 92) based on the Trial of Org 10172 in Acute Stroke Treatment (TOAST) criteria. Direct sequencing was used to screen these three stroke subtypes and non-stroke controls for P2Y12 polymorphisms: a T→C transition at 744 nucleotides (nt) downstream of intron 5's start site (i-T744C) and a C→T transition at 34 nt downstream of exon 2's start site (C34T). Based on the results of multivariate logistic analyses, a prediction model was established via a nomogram that incorporated genomic and clinical variables to quantify the risk of LAA stroke. RESULTS: Significant differences in the P2Y12 i-T744C genotype and allele frequencies were observed between LAA patients and controls. After adjusting for confounding factors, the dominant model (p = 0.009) and additive model (p = 0.023) revealed that the i-T744C polymorphism was significantly associated with increased susceptibility to LAA. No significant associations were found for the SVO and CE stroke subtypes. Moreover, the C34T polymorphism was not an independent factor for any stroke subtype. We further constructed a nomogram prediction model for LAA stroke bas

Paper demonstrates microglial P2RY12's role in microvasculature protection, aligning with the hypothesis's foc…
Paper demonstrates microglial P2RY12's role in microvasculature protection, aligning with the hypothesis's focus on modulating microglial signaling pathways.
Exp Neurol · 2026 · PMID:41577116
Paper investigates sex-specific microglial neuronal pruning mechanisms, consistent with the hypothesis's explo…
Paper investigates sex-specific microglial neuronal pruning mechanisms, consistent with the hypothesis's exploration of microglial process dynamics.
Mol Neurobiol · 2025 · PMID:41324815
Paper examines microglia's role in modulating cortical information processing, which directly relates to the h…
Paper examines microglia's role in modulating cortical information processing, which directly relates to the hypothesis's focus on microglial surveillance mechanisms.
J Neurosci · 2026 · PMID:41735058
Paper highlights microglial activation's role in neurodegeneration, supporting the hypothesis's premise of tar…
Paper highlights microglial activation's role in neurodegeneration, supporting the hypothesis's premise of targeting pathological microglial states.
Brain Behav Immun · 2026 · PMID:41176236

Opposing Evidence 7

P2Y12 is also expressed on platelets; CNS-targeted delivery is essential to avoid bleeding complications from … HIGH
P2Y12 is also expressed on platelets; CNS-targeted delivery is essential to avoid bleeding complications from systemic P2Y12 inhibition.
Lancet · 2015 · PMID:25943697
P2Y12 signaling is required for microglial barrier formation around amyloid plaques; complete inhibition could… HIGH
P2Y12 signaling is required for microglial barrier formation around amyloid plaques; complete inhibition could worsen plaque-associated neurotoxicity.
Nat Neurosci · 2016 · PMID:27bhz0768
Inverse agonists are pharmacologically more complex than antagonists; achieving brain-penetrant inverse agonis… MODERATE
Inverse agonists are pharmacologically more complex than antagonists; achieving brain-penetrant inverse agonism at P2Y12 without platelet effects is technically challenging.
Trends Pharmacol Sci · 2020 · PMID:32461342
ABSTRACT

BACKGROUND: The generation of antigen-specific cytotoxic T lymphocyte (CTL) responses is required for successful cancer vaccine therapy. In this regard, ligands of Toll-like receptors (TLRs) have been suggested to activate adaptive immune responses by modulating the function of antigen-presenting cells (APCs). Despite their therapeutic potential, the development of TLR ligands for immunotherapy is often hampered due to rapid systemic toxicity. Regarding the safety concerns of currently available TLR ligands, finding a new TLR agonist with potent efficacy and safety is needed. METHODS: A unique structural domain (UNE-C1) was identified as a novel TLR2/6 in the catalytic region of human cysteinyl-tRNA synthetase 1 (CARS1) using comprehensive approaches, including RNA sequencing, the human embryonic kidney (HEK)-TLR Blue system, pull-down, and ELISA. The potency of its immunoadjuvant properties was analyzed by assessing antigen-specific antibody and CTL responses. In addition, the efficacy of tumor growth inhibition and the presence of the tumor-infiltrating leukocytes were evaluated using E.G7-OVA and TC-1 mouse models. The combined effect of UNE-C1 with an immune checkpoint inhibitor, anti-CTLA-4 antibody, was also evaluated in vivo. The safety of UNE-C1 immunization was determined by monitoring splenomegaly and cytokine production in the blood. RESULTS: Here, we report that CARS1 can be secreted from cancer cells to activate immune responses via specific interactions with TLR

Microglial P2Y12 expression decreases naturally in advanced AD; therapeutic inhibition may have limited benefi… MODERATE
Microglial P2Y12 expression decreases naturally in advanced AD; therapeutic inhibition may have limited benefit in later disease stages.
Cell · 2017 · PMID:28602351
ABSTRACT

Alzheimer's disease (AD) is a detrimental neurodegenerative disease with no effective treatments. Due to cellular heterogeneity, defining the roles of immune cell subsets in AD onset and progression has been challenging. Using transcriptional single-cell sorting, we comprehensively map all immune populations in wild-type and AD-transgenic (Tg-AD) mouse brains. We describe a novel microglia type associated with neurodegenerative diseases (DAM) and identify markers, spatial localization, and pathways associated with these cells. Immunohistochemical staining of mice and human brain slices shows DAM with intracellular/phagocytic Aβ particles. Single-cell analysis of DAM in Tg-AD and triggering receptor expressed on myeloid cells 2 (Trem2)-/- Tg-AD reveals that the DAM program is activated in a two-step process. Activation is initiated in a Trem2-independent manner that involves downregulation of microglia checkpoints, followed by activation of a Trem2-dependent program. This unique microglia-type has the potential to restrict neurodegeneration, which may have important implications for future treatment of AD and other neurodegenerative diseases. VIDEO ABSTRACT.

Epidemiological studies of clopidogrel users show no clear AD risk reduction, though brain penetrance of exist… LOW
Epidemiological studies of clopidogrel users show no clear AD risk reduction, though brain penetrance of existing antiplatelet P2Y12 agents is minimal.
Alzheimers Dement · 2021 · PMID:33890283
ABSTRACT

Immune checkpoint blockade has demonstrated remarkable efficacy in hepatocellular carcinoma (HCC) but is also commonly accompanied by immune-related adverse events (irAEs). However, the association between irAEs and antitumor efficacy in HCC patients remains unknown. All patients with HCC treated with anti-PD-1 antibodies from July 2018 to November 2019 were analyzed and divided into different groups according to their irAEs' status. In total, 101 HCC patients, including 21 (20.8%) patients who presented with irAEs (irAEs+ ), were enrolled. Among the adverse events, rash (n = 9, 8.9%) was the most frequent irAE, followed by mucositis (n = 3, 3.0%) and thyroiditis (n = 3, 3.0%). Patients in the irAEs+ group showed a higher tumor response rate than those in the irAEs- group (overall response rate: 28.6% vs 6.3%, P = .011; disease control rate: 85.7% vs 60.0%, P = .028). The median progression-free survival (PFS) times were 14.8 months in the irAEs+ group and 4.1 months in the irAEs- group (P < .001). Further analysis based on the presence or absence of rash showed that the PFS of the patients in the irAEs+ /rash+ group was better than that of those in the irAEs+ /rash- or irAEs- group (all P < .05). Multivariate analysis showed that irAEs were an independent prognostic factor for PFS (hazard ratio [HR]: 0.22, P = .002). Thus, the occurrence of irAEs, especially rash, was associated with markedly improved PFS. Awareness of irAEs may help classify the subtype of HCC patients with

Platelet P2Y12 receptor inhibition by thienopyridines: status and future MEDIUM
Expert Opin Investig Drugs · 2009 · PMID:19678800
ABSTRACT

Thienopyridines have a well-established role in the treatment of coronary artery disease, especially in the setting of acute coronary syndromes and percutaneous coronary interventions. Ticlopidine, the first FDA-approved thienopyridine, was shown to be effective in reducing coronary events in high risk patients, but the original enthusiasm was hampered by concerns about its serious bone marrow toxicity. Clopidogrel a second generation thienopyridine with lesser side effects, is not only at least

Randomized comparison of prasugrel (CS-747, LY640315), a novel thienopyridine P2Y12 antagonist, with clopidogr… MEDIUM
Randomized comparison of prasugrel (CS-747, LY640315), a novel thienopyridine P2Y12 antagonist, with clopidogrel in percutaneous coronary intervention: results of the Joint Utilization of Medications to Block Platelets Optimally (JUMBO)-TIMI 26 trial
Circulation · 2005 · PMID:15967851
ABSTRACT

Despite the current standard antiplatelet regimen of aspirin and clopidogrel (with or without glycoprotein IIb/IIIa inhibitors) in percutaneous coronary intervention patients, periprocedural and postprocedural ischemic events continue to occur. Prasugrel (CS-747, LY640315), a novel potent thienopyridine P2Y(12) receptor antagonist, has the potential to achieve higher levels of inhibition of ADP-induced platelet aggregation than currently approved doses of clopidogrel. Joint Utilization of Medica

Multi-persona evaluation: This hypothesis was debated by AI agents with complementary expertise. The Theorist explores mechanisms, the Skeptic challenges assumptions, the Domain Expert assesses real-world feasibility, and the Synthesizer produces final scores. Expand each card to see their arguments.
Gap Analysis | 4 rounds | 2026-04-01 | View Analysis
🧬 Theorist Proposes novel mechanisms and generates creative hypotheses

Novel Therapeutic Hypotheses for Synaptic Pruning in Early Alzheimer's Disease

Hypothesis 1: Complement C1q Mimetic Decoy Therapy

Description: Engineer synthetic C1q mimetics that bind to synaptic "eat-me" signals without activating downstream complement cascade, effectively saturating microglial recognition sites and preventing pathological synaptic elimination. These decoys would competitively inhibit authentic C1q binding while lacking the Fc-like domain necessary for microglial phagocytosis activation.

Target: C1Q complement component subunit A (C1QA) and microglial compleme

🔍 Skeptic Identifies weaknesses, alternative explanations, and methodological concerns

Critical Evaluation of Synaptic Pruning Therapeutic Hypotheses

Hypothesis 1: Complement C1q Mimetic Decoy Therapy

Specific Weaknesses:

  • Selectivity Problem: C1q has essential physiological roles beyond synaptic pruning, including pathogen clearance and apoptotic cell removal. Broad C1q inhibition could compromise immune function and debris clearance.
  • Dosing Paradox: The therapeutic window may be extremely narrow - insufficient decoy concentration won't compete effectively, while excess may trigger non-specific immune responses.
  • Structural Complexity: C1q is a massiv

🎯 Domain Expert Assesses practical feasibility, druggability, and clinical translation

Practical Feasibility Assessment: Synaptic Pruning Therapeutics

Hypothesis 1: Complement C1q Mimetic Decoy Therapy

Revised Confidence: 0.45

Druggability Assessment

Target Class: Protein-protein interaction (PPI) - historically challenging but increasingly tractable Chemical Matter:
  • Large molecule approach: Engineered proteins/peptides mimicking C1q globular heads (22 kDa each)
  • Small molecule approach: PPI inhibitors targeting C1q-CR3 interface (challenging given large interaction surface ~1,500 Ų)
  • Best bet: Antibody-based decoys or engineered protein f

Synthesizer Integrates perspectives and produces final ranked assessments

Price History

0.250.500.75 created: post_process (2026-04-02 01:34)evidence: market_dynamics_seed (2026-04-02 18:16)score_update: post_process (2026-04-02T02:55)score_update: post_process (2026-04-02T04:15)evidence: evidence_update (2026-04-02T05:35)debate: debate_engine (2026-04-02T06:56)evidence: evidence_update (2026-04-02T08:16)evidence: evidence_update (2026-04-02T09:36)evidence: evidence_update (2026-04-02T10:57)evidence: evidence_update (2026-04-02T12:17)debate: debate_engine (2026-04-02T13:37)evidence: market_dynamics (2026-04-02T17:18)debate: debate_engine (2026-04-02T17:18)evidence: evidence_batch_update (2026-04-03T01:06)evidence: evidence_batch_update (2026-04-03T01:06)evidence: evidence_batch_update (2026-04-04T09:08)evidence: evidence_batch_update (2026-04-13T02:18)evidence: evidence_batch_update (2026-04-13T02:18) 1.00 0.00 2026-04-022026-04-102026-04-15 Market PriceScoreevidencedebate 150 events
7d Trend
Stable
7d Momentum
▲ 0.2%
Volatility
Low
0.0183
Events (7d)
79
⚡ Price Movement Log Recent 15 events
Event Price Change Source Time
📄 New Evidence $0.505 ▲ 1.5% evidence_batch_update 2026-04-13 02:18
📄 New Evidence $0.498 ▲ 3.7% evidence_batch_update 2026-04-13 02:18
Recalibrated $0.480 ▼ 1.9% 2026-04-12 05:13
Recalibrated $0.489 ▼ 1.1% 2026-04-10 15:58
Recalibrated $0.495 ▲ 1.4% 2026-04-10 15:53
Recalibrated $0.488 ▼ 2.0% 2026-04-08 18:39
Recalibrated $0.498 ▼ 0.4% 2026-04-06 04:04
Recalibrated $0.500 ▼ 0.7% 2026-04-04 16:38
Recalibrated $0.504 ▼ 1.5% 2026-04-04 16:02
📄 New Evidence $0.511 ▲ 1.8% evidence_batch_update 2026-04-04 09:08
Recalibrated $0.502 ▼ 30.5% 2026-04-03 23:46
📄 New Evidence $0.722 ▲ 0.8% evidence_batch_update 2026-04-03 01:06
Recalibrated $0.716 ▲ 5.8% market_dynamics 2026-04-03 01:06
📄 New Evidence $0.677 ▲ 2.1% evidence_batch_update 2026-04-03 01:06
Recalibrated $0.664 ▲ 24.6% market_dynamics 2026-04-03 01:06

Clinical Trials (10) Relevance: 62%

0
Active
0
Completed
1,240
Total Enrolled
EARLY_PHASE1
Highest Phase
Different Regimen of Aprotinine(Trasylol) Administration in Patients Receiving Antiplatelet Therapy With Clopidogrel (Plavix) NA
COMPLETED · NCT00257751 · Oslo University Hospital
400 enrolled · 2004-03 · → 2007-11
Clopidogrel (Plavix), a platelet ADP receptor antagonist, has become the standard of care to prevent thrombosis in interventional cardiology and is increasingly being used in unstable angina and NSTEM
Coronary Artery Disease
Aprotinine
A Genomic Approach for Clopidogrel in Caribbean Hispanics EARLY_PHASE1
ACTIVE_NOT_RECRUITING · NCT03419325 · University of Puerto Rico
150 enrolled · 2020-09-01 · → 2023-04-30
Clopidogrel is a prescription medicine used to minimize blood clot formation in patients with cardiovascular disease, particularly those undergoing heart catheterization and stroke. A substantial amou
Cardiovascular Disease (CVD) Stroke Acute Coronary Syndrome
CYP2C19 test P2RY12 assay
Prasugrel in Severe COVID-19 Pneumonia PHASE3
UNKNOWN · NCT04445623 · Azienda Ospedaliera Universitaria Integrata Verona
128 enrolled · 2020-07 · → 2020-10
Inflammatory diseases favour the onset of venous thromboembolic events in hospitalized patients. Thromboprophylaxis with a fixed dose of heparin/low molecular weight heparin (LMWH) is recommended if c
COVID19 Thrombosis
Prasugrel Hydrochloride 10 MG Oral Tablet Placebo
Aspirin and Clopidogrel Reactivity in Patients With Critical Limb Ischemia (CLI) N/A
COMPLETED · NCT02094755 · University of Southern California
100 enrolled · 2013-06-19 · → 2016-11-21
Critical Limb Ischemia (CLI) is defined as limb pain that occurs at rest, or impending limb loss that is caused by severe compromise of blood flow to the affected extremity. CLI is a major cause of de
Critical Limb Ischemia
Blood draw only
Observational Study of Platelet Dysfunction Assessed by Thromboelastography in Cardiovascular Surgery (DISPLATEG) N/A
RECRUITING · NCT06961175 · Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León
180 enrolled · 2025-05-01 · → 2026-09
Perioperative bleeding requiring blood transfusion is common during cardiovascular surgery, especially in procedures requiring cardiopulmonary bypass. Adenosine diphosphate (ADP) plays a fundamental r
Blood Platelet Disorders Cardiac Surgery Postoperative Bleeding
RAPA-501 Therapy for ALS PHASE2
RECRUITING · NCT04220190 · Rapa Therapeutics LLC
41 enrolled · 2025-01-02 · → 2026-07-01
RAPA-501-ALS is a phase 2/3 expansion cohort study of RAPA-501 autologous hybrid TREG/Th2 cells in patients living with amyotrophic lateral sclerosis (pwALS).
Amyotrophic Lateral Sclerosis
RAPA-501 Autologous T stem cells
MAD Phase I Study to Investigate Contraloid Acetate PHASE1
COMPLETED · NCT03955380 · Prof. Dr. Dieter Willbold
24 enrolled · 2018-12-12 · → 2019-04-03
This is a single-center multiple-ascending-dose clinical trial assessing the safety and tolerability of oral dosing of Contraloid acetate in healthy volunteers. The study drug Contraloid (alias RD2, a
Alzheimer Dementia Alzheimer Disease
Contraloid
Cerebrovascular Reactivity and Oxygen Metabolism as Markers of Neurodegeneration After Traumatic Brain Injury N/A
UNKNOWN · NCT04820881 · Washington D.C. Veterans Affairs Medical Center
60 enrolled · 2021-10-01 · → 2024-09
This grant award entitled, "Cerebrovascular Reactivity and Oxygen Metabolism as Markers for Neurodegeneration after Traumatic Brain Injury" (hereafter, "Neurovascular Study"), aims to determine if neu
Neurodegenerative Diseases
Stereotactic Intracerebral Injection of Allogenic IPSC-DAPs in Patients With Parkinson's Disease PHASE1
NOT_YET_RECRUITING · NCT07212088 · iCamuno Biotherapeutics Ltd.
12 enrolled · 2026-02-28 · → 2027-12-15
Parkinson's disease is a progressive neurodegenerative disorder characterized by high morbidity due to the limited regenerative capacity of dopaminergic neurons in the brain. Current drug treatments p
Parkinson Disease
ALC01 therapy
MRI Biomarkers in ALS N/A
COMPLETED · NCT02405182 · University of Alberta
145 enrolled · 2014-09 · → 2019-03
Amyotrophic lateral sclerosis (ALS) is a disabling and rapidly progressive neurodegenerative disorder. There is no treatment that significantly slows progression. Increasing age is an important risk f
Amyotrophic Lateral Sclerosis ALS Motor Neuron Diseases
Magnetic Resonance Imaging

📚 Cited Papers (37)

Paper:25943697
1 figure
Figures
Figures
Figures available at source paper (no open-access XML found).
deep_link
Platelet P2Y12 receptor inhibition by thienopyridines: status and future.
Expert opinion on investigational drugs (2009) · PMID:19678800
1 figure
Figures
Figures
Figures available at source paper (no open-access XML found).
deep_link
A Unique Microglia Type Associated with Restricting Development of Alzheimer's Disease.
Cell (2017) · PMID:28602351
1 figure
Figures
Figures
Figures available at source paper (no open-access XML found).
deep_link
Beyond Activation: Characterizing Microglial Functional Phenotypes.
Cells (2021) · PMID:34571885
3 figures
Figure 1
Figure 1
Comparison of frequently used microglial markers in the typically described morphological phenotypes . In human tissue from the frontal cortex and hippocampus, most markers show a ...
pmc_api
Figure 2
Figure 2
IBA1-negative microglia. Regions seemingly devoid of microglia in the IBA1 staining, exhibit positive staining for several other microglial markers such as TMEM119, CD74 and CD68....
pmc_api
Randomized comparison of prasugrel (CS-747, LY640315), a novel thienopyridine P2Y12 antagonist, with clopidogrel in percutaneous coronary intervention: results of the Joint Utilization of Medications to Block Platelets Optimally (JUMBO)-TIMI 26 trial.
Circulation (2005) · PMID:15967851
1 figure
Figures
Figures
Figures available at source paper (no open-access XML found).
deep_link
Endogenous TLR2 ligand embedded in the catalytic region of human cysteinyl-tRNA synthetase 1.
Journal for immunotherapy of cancer (2020) · PMID:32461342
7 figures
Figure 1
Figure 1
Effect of secreted CARS1 on TNF-α secretion from macrophages (A) CARS1 secretion was tested by incubating HCT116 cells under different conditions, including SF, TNF-α (10 ng/mL), t...
pmc_api
Figure 2
Figure 2
Determination of UNE-C1 as the activity determinant. (A) Multiple sequence alignment comparing UNE-C1 sequences from different species. (B) Schematic demonstration of CARS1 fragmen...
pmc_api
The P2RY12 receptor promotes VSMC-derived foam cell formation by inhibiting autophagy in advanced atherosclerosis.
Autophagy (2021) · PMID:32160082
1 figure
Figures
Figures
Figures available at source paper (no open-access XML found).
deep_link
Paper:15967851
No extracted figures yet
Paper:16675393
No extracted figures yet
Paper:19678800
No extracted figures yet
Paper:27bhz0768
No extracted figures yet
Paper:28602351
No extracted figures yet

📓 Linked Notebooks (1)

📓 Synaptic pruning by microglia in early AD — Analysis Notebook
CI-generated notebook stub for analysis sda-2026-04-01-gap-v2-691b42f1. Synaptic pruning by microglia in early AD
→ Browse all notebooks

⚔ Arena Performance

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Wiki Pages

P2RY12 GenegeneYoga Therapy for NeurodegenerationtherapeuticYAP/TEAD Pathway Modulators for NeurodegenerationtherapeuticWnt Signaling Modulators for Neurodegenerationtherapeuticvitamin-d-therapy-neurodegenerationtherapeuticVitamin B Complex Therapy for NeurodegenerationtherapeuticVIP/VPAC Receptor Modulators for NeurodegenerationtherapeuticUrolithin A for NeurodegenerationtherapeuticUrolithin A for Neurodegenerationtherapeutictudca-udca-neurodegenerationtherapeuticTRPM8 Agonists for NeurodegenerationtherapeuticTriple Incretin Agonists (GLP-1/GIP/Glucagon) for therapeuticTREM2 Agonist Therapy for NeurodegenerationtherapeuticTranscranial Magnetic Stimulation Therapy for NeurtherapeuticTLR7/8/9 Antagonists for Neurodegenerationtherapeutic

KG Entities (34)

ANXA1APOEC1QC1QACOGNITIVE DECLINECX3CR1DAP12Fractalkine receptor / microglia-neuron HK2Microglial activation / TREM2 signalingP2RY12P38PI3KSOD1SYNAPTIC PRUNINGSynaptic function / plasticityTREM2TREM2-DAP12 microglial signalingeat_me_signalsfractalkine_signaling

Dependency Graph (4 upstream, 1 downstream)

Depends On
Microglial Purinergic Reprogrammingbuilds_on (1.0)Fractalkine Axis Amplification via CX3CR1 Positive Allosteric Modulatorsbuilds_on (1.0)Purinergic Signaling Polarization Controlbuilds_on (0.6)Microglial Purinergic Reprogrammingrefines (0.5)
Depended On By
TREM2-mediated microglial tau clearance enhancementbuilds_on (0.6)

Linked Experiments (6)

FTD Microglia Role: Protective vs Destructive Mechanism Studyvalidation | tests | 0.46TREM2 Agonist Therapy for Parkinson's Disease — Experimental Designvalidation | tests | 0.46Microglial TREM2 Agonist In Vivo Efficacyvalidation | tests | 0.46Purinergic Signaling Dysfunction Validation in Parkinson's Diseaseclinical | tests | 0.46s:** - GPR32 knockout in microglia should worsen neuroinflammation if this is thfalsification | tests | 0.46Proposed experiment from debate on Synaptic pruning by microglia in early ADfalsification | tests | 0.46

Related Hypotheses

Microglial Purinergic Reprogramming
Score: 0.483 | neurodegeneration
SASP-Mediated Complement Cascade Amplification
Score: 0.703 | neurodegeneration
TREM2-Dependent Microglial Senescence Transition
Score: 0.692 | neurodegeneration
H2: Indole-3-Propionate (IPA) as the Actual Neuroprotective Effector
Score: 0.675 | neurodegeneration
Nutrient-Sensing Epigenetic Circuit Reactivation
Score: 0.670 | neurodegeneration

Estimated Development

Estimated Cost
$60M
Timeline
7.0 years

🧪 Falsifiable Predictions (5)

5 total 0 confirmed 0 falsified
sufficient vs C1q-deficient AD mice 2. Measure systemic immune function (bacterial clearance, autoantibody formation) during chronic decoy treatment 3. Examine whether decoys prevent beneficial C1q functions like amyloid phagocytosis
pending conf: 0.65
Expected outcome: Confirmatory evidence for hypothesis
Falsified by: Failure of: sufficient vs C1q-deficient AD mice 2. Measure systemic immune function (bacterial clearance, autoantibody formation) during chronic decoy treatment 3. Examine whether decoys prevent beneficial C1q fu
response curves for both anti-inflammatory markers and synaptic preservation 3. Compare effects in microglia-specific vs pan-cellular CX3CR1 modulation
pending conf: 0.65
Expected outcome: Confirmatory evidence for hypothesis
Falsified by: Failure of: response curves for both anti-inflammatory markers and synaptic preservation 3. Compare effects in microglia-specific vs pan-cellular CX3CR1 modulation
penetrant P2Y12 inverse agonists
pending conf: 0.65
Expected outcome: Confirmatory evidence for hypothesis
Falsified by: Failure of: penetrant P2Y12 inverse agonists
specific metabolic inhibition using cell-type-specific delivery systems 2. Measure microglial viability and essential functions during forced metabolic reprogramming 3. Compare effects in different brain regions with varying baseline metabolic demands
pending conf: 0.65
Expected outcome: Confirmatory evidence for hypothesis
Falsified by: Failure of: specific metabolic inhibition using cell-type-specific delivery systems 2. Measure microglial viability and essential functions during forced metabolic reprogramming 3. Compare effects in different br
term opsin expression in neuroinflammatory conditions 3. Compare localized vs distributed optogenetic control for preventing synaptic loss 4. Assess whether benefits persist when light stimulation is discontinued
pending conf: 0.65
Expected outcome: Confirmatory evidence for hypothesis
Falsified by: Failure of: term opsin expression in neuroinflammatory conditions 3. Compare localized vs distributed optogenetic control for preventing synaptic loss 4. Assess whether benefits persist when light stimulation i

Knowledge Subgraph (75 edges)

associated with (3)

CX3CR1 neurodegeneration
ANXA1 neurodegeneration
TREM2 neurodegeneration

co associated with (14)

ANXA1 CX3CR1
ANXA1 P2RY12
C1QA HK2
ANXA1 C1QA
C1QA CX3CR1
...and 9 more

co discussed (38)

HK2 TREM2
HK2 P2RY12
HK2 C1Q
HK2 C1QA
HK2 CX3CR1
...and 33 more

contributes to (1)

SYNAPTIC PRUNING COGNITIVE DECLINE

fuels (1)

glycolysis microglial_activation

implicated in (7)

h-f99ce4ca neurodegeneration
h-1fe4ba9b neurodegeneration
h-ba3a948a neurodegeneration
h-38292315 neurodegeneration
h-513a633f neurodegeneration
...and 2 more

maintains (1)

fractalkine_signaling microglial_surveillance

mediates (2)

CX3CR1 fractalkine_signaling
ANXA1 phosphatidylserine_masking

participates in (4)

CX3CR1 Fractalkine receptor / microglia-neuron communication
HK2 Microglial activation / TREM2 signaling
ANXA1 Synaptic function / plasticity
TREM2 TREM2-DAP12 microglial signaling

rate limits (1)

HK2 glycolysis

regulates (2)

P2RY12 microglial_process_motility
TREM2 microglial_phagocytosis

suppresses (1)

phosphatidylserine_masking eat_me_signals

Mechanism Pathway for P2RY12

Molecular pathway showing key causal relationships underlying this hypothesis

graph TD
    P2RY12["P2RY12"] -->|regulates| microglial_process_motili["microglial_process_motility"]
    HK2["HK2"] -->|co discussed| P2RY12_1["P2RY12"]
    TREM2["TREM2"] -->|co discussed| P2RY12_2["P2RY12"]
    P2RY12_3["P2RY12"] -->|co discussed| C1Q["C1Q"]
    P2RY12_4["P2RY12"] -->|co discussed| CX3CR1["CX3CR1"]
    P2RY12_5["P2RY12"] -->|co discussed| ANXA1["ANXA1"]
    CX3CR1_6["CX3CR1"] -->|co discussed| P2RY12_7["P2RY12"]
    P2RY12_8["P2RY12"] -->|co discussed| HK2_9["HK2"]
    ANXA1_10["ANXA1"] -->|co discussed| P2RY12_11["P2RY12"]
    ANXA1_12["ANXA1"] -->|co associated with| P2RY12_13["P2RY12"]
    CX3CR1_14["CX3CR1"] -->|co associated with| P2RY12_15["P2RY12"]
    HK2_16["HK2"] -->|co associated with| P2RY12_17["P2RY12"]
    P2RY12_18["P2RY12"] -->|co associated with| TREM2_19["TREM2"]
    style P2RY12 fill:#ce93d8,stroke:#333,color:#000
    style microglial_process_motili fill:#4fc3f7,stroke:#333,color:#000
    style HK2 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_1 fill:#ce93d8,stroke:#333,color:#000
    style TREM2 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_2 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_3 fill:#ce93d8,stroke:#333,color:#000
    style C1Q fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_4 fill:#ce93d8,stroke:#333,color:#000
    style CX3CR1 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_5 fill:#ce93d8,stroke:#333,color:#000
    style ANXA1 fill:#ce93d8,stroke:#333,color:#000
    style CX3CR1_6 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_7 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_8 fill:#ce93d8,stroke:#333,color:#000
    style HK2_9 fill:#ce93d8,stroke:#333,color:#000
    style ANXA1_10 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_11 fill:#ce93d8,stroke:#333,color:#000
    style ANXA1_12 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_13 fill:#ce93d8,stroke:#333,color:#000
    style CX3CR1_14 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_15 fill:#ce93d8,stroke:#333,color:#000
    style HK2_16 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_17 fill:#ce93d8,stroke:#333,color:#000
    style P2RY12_18 fill:#ce93d8,stroke:#333,color:#000
    style TREM2_19 fill:#ce93d8,stroke:#333,color:#000

3D Protein Structure

🧬 P2RY12 — PDB 4NTJ Click to expand 3D viewer

Experimental structure from RCSB PDB | Powered by Mol* | Rotate: click+drag | Zoom: scroll | Reset: right-click

Source Analysis

Synaptic pruning by microglia in early AD

neurodegeneration | 2026-04-01 | completed