Imp

Formal debate: ubiquitylation-dependent turnover is the actionable driver in: Ho

closed · Rounds: 3 · Score: 0.75 · 2026-04-26

Formal debate: K48/K63 ubiquitin chain balance separates causal from compensator

closed · Rounds: 3 · Score: 0.75 · 2026-04-26

How do ALS-linked UBQLN2 mutations affect its ubiquitylation-dependent stability

closed · Rounds: 4 · Score: 0.78 · 2026-04-26

APOE4 astrocytes exhibit impaired cholesterol efflux via ABCA1/ABCG1 transporter

Score: 0.758 · neuroscience · 2026-04-22

## Mechanistic Overview APOE4 astrocytes exhibit impaired cholesterol efflux via ABCA1/ABCG1 transporters, driving intra

H2: Impaired Autophagy Receptor Recruitment Traps G3BP1 Granules

Score: 0.737 · neurodegeneration · 2026-04-22

**Molecular Mechanism and Rationale** The central molecular mechanism underlying this hypothesis involves the intricate

Matrix Metalloproteinase-9 and TIMP-1 Ratio in Peripheral Blood as an Early Indi

Score: 0.735 · unknown disease · 2026-04-26

Elevated MMP-9/TIMP-1 ratio reflects net proteolytic activity against the BBB, causing degradation of tight junction pro

SGMS1-Driven Sphingomyelin Accumulation Impairs BACE1 Lysosomal Degradation via

Score: 0.734 · neurodegeneration · 2026-04-15

## Mechanistic Overview SGMS1-Driven Sphingomyelin Accumulation Impairs BACE1 Lysosomal Degradation via Autophagosome-Ly

H3: APOE4 Impairs Cholesterol Trafficking, Triggering Astrocyte Senescence

Score: 0.720 · neurodegeneration · 2026-04-22

**Molecular Mechanism and Rationale** The APOE4 isoform exhibits fundamentally altered structural and functional proper

VCP/p97 ATPase mutations impair extraction of ubiquitinated autophagy substrates

Score: 0.720 · neurodegeneration · 2026-04-21

## Mechanistic Overview VCP/p97 ATPase mutations impair extraction of ubiquitinated autophagy substrates, causing protea

C9orf72 DPRs Impair Autophagy Receptor Docking on Stress Granules

Score: 0.717 · neurodegeneration · 2026-04-22

## **Molecular Mechanism and Rationale** The hexanucleotide repeat expansion (GGGGCC) in the C9orf72 gene represents th

APOE ε4 Drives Lipid Droplet Accumulation in a Unique Lipid-Associated Microglia

Score: 0.697 · alzheimer · 2026-04-27

APOE ε4 promotes excessive cholesterol esterification and neutral lipid droplet accumulation in a discrete lipid-associa

APOE4 hypolipidation and ABCA1 mistrafficking impair cholesterol efflux and seco

Score: 0.694 · molecular-biology · 2026-04-24

A plausible upstream submechanism is that lipid-poor APOE4 disrupts ABCA1 trafficking, likely via ARF6-associated endoso

Loss of AQP4 Polarization Impairs Glymphatic Perivascular Influx, Causing Metabo

Score: 0.690 · neurodegeneration · 2026-04-21

**Molecular Mechanism and Rationale** The aquaporin-4 (AQP4) water channel represents a critical component of the brain

AQP4 Dysregulation Promotes Neuroinflammation Through Impaired CNS-Peripheral Im

Score: 0.680 · neurodegeneration · 2026-04-21

**Molecular Mechanism and Rationale** The molecular mechanism underlying AQP4-mediated neuroinflammation centers on the

Soluble LRP1 (sLRP1) Ectodomain Shedding as a Blood-Based Indicator of Impaired

Score: 0.680 · unknown disease · 2026-04-26

LRP1 mediates Aβ export from brain to blood at the BBB. Metalloprotease-mediated shedding of the LRP1 ectodomain (sLRP1)

Microglial TREM2-Mediated Tau Phagocytosis Impairment

Score: 0.676 · neuroscience · 2026-04-12

**Molecular Mechanism and Rationale** The microglial TREM2-mediated tau phagocytosis impairment represents a complex pa

Matrix Metalloproteinase-9/TIMP-1 Ratio in CSF Identifies Preclinical Tight Junc

Score: 0.675 · unknown disease · 2026-04-26

Matrix metalloproteinase-9 (MMP-9) degrades tight junction proteins (claudin-5, occludin, ZO-1) and extracellular matrix

Axonal Transport Defect: C9orf72 hexanucleotide expansion impairs retrograde aut

Score: 0.660 · neurodegeneration · 2026-04-21

## Mechanistic Overview Axonal Transport Defect: C9orf72 hexanucleotide expansion impairs retrograde autophagosome trans