DUSP10 Gene

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title: DUSP10 Gene

DUSP10 Gene

Overview

DUSP10 (Dual Specificity Phosphatase 10), also known as MAPK Phosphatase 5 (MKP5), is a member of the dual-specificity phosphatase family that specifically dephosphorylates and inactivates both JNK (c-Jun N-terminal Kinase) and p38 MAPK pathways. These stress-activated protein kinase pathways are central to cellular responses to inflammatory cytokines, oxidative stress, and environmental toxins—all key contributors to neurodegenerative processes. DUSP10 plays a critical role in resolving neuroinflammation and protecting [neurons](/entities/neurons) from stress-induced cell death [1][2]. [@theodosiou2006]

Gene Information

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title: DUSP10 Gene

DUSP10 Gene

Overview

Mermaid diagram (expand to render)

Gene Information

<div class="infobox infobox-gene"> [@zhang2022]

| Property | Value | [@mehan2021]
|----------|-------| [@munoz2020]
| Gene Symbol | DUSP10 | [@zhang2023]
| Gene Name | Dual Specificity Phosphatase 10 | [@dusadeeme2022]
| Aliases | DUSP10, MKP5, MAPKSP1, CL100, PRTP | [@pasinetti2021]
| Chromosomal Location | 1p35.3 | [@trueman2022]
| NCBI Gene ID | [80824](https://www.ncbi.nlm.nih.gov/gene/80824) |
| OMIM | [607070](https://www.omim.org/entry/607070) |
| UniProt | [Q9Y263](https://www.uniprot.org/uniprot/Q9Y263) |
| Ensembl | [ENSG00000143507](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000143507) |

</div>

Function and Biochemistry

Protein Structure

DUSP10 encodes a 482-amino acid protein with the following key structural features:

N-terminal Non-catalytic Domain: Contains binding sites for MAPK substrates and regulators
Phosphatase Catalytic Domain: Contains the HCX5R active site motif essential for phosphatase activity
Nuclear Export Signal (NES): Allows shuttling between nucleus and cytoplasm

Unlike DUSP1 (MKP1) which is primarily cytosolic, DUSP10 can be found in both nuclear and cytoplasmic compartments [3].

Substrate Specificity

DUSP10 has broad specificity for stress-activated MAP kinases:

JNK1/2/3: All JNK isoforms are efficiently dephosphorylated

p38 alpha/beta/gamma: Multiple p38 isoforms are targets

ERK1/2: Less efficient dephosphorylation compared to JNK/p38

This broad specificity makes DUSP10 a key regulator of cellular stress responses [4].

Regulation

DUSP10 expression and activity are regulated at multiple levels:

Transcriptional Induction: Rapidly upregulated by cellular stress

Post-translational Modification: Phosphorylation affects activity and localization

Protein-Protein Interactions: Scaffold proteins influence substrate selection

Expression Pattern

Brain Expression

In the central nervous system, DUSP10 is expressed in:

[Microglia](/cell-types/microglia-neuroinflammation): High expression in activated microglia

[Astrocytes](/entities/astrocytes): Moderate expression, increased under stress

Neurons: Lower baseline expression, induced by injury

Cell-Type Specificity

DUSP10 shows cell-type specific patterns:

Immune Cells: High expression in macrophages and T cells
Glial Cells: Induction during neuroinflammation
Neurons: Stress-induced expression

Role in Neurodegeneration

Neuroinflammation

DUSP10 is a critical regulator of neuroinflammation:

Microglial Activation: Limits excessive pro-inflammatory cytokine production

TNF-alpha Signaling: Negatively regulates TNF-induced JNK/p38 activation

IL-1beta Effects: Modulates IL-1 receptor signaling cascades

NF-kappaB Cross-talk: JNK/p38 inhibition affects [NF-kB](/entities/nf-kb) dependent transcription [5]

Alzheimer's Disease

In Alzheimer's disease:

[Amyloid-beta](/proteins/amyloid-beta) Pathology: A beta oligomers activate JNK and p38 pathways; DUSP10 provides negative feedback
[Tau](/proteins/tau) Phosphorylation: JNK contributes to tau hyperphosphorylation; DUSP10 may modulate this
Synaptic Dysfunction: JNK activation affects synaptic plasticity; DUSP10 is protective
Neuronal [Apoptosis](/entities/apoptosis): Chronic JNK/p38 activation triggers neuronal death; DUSP10 can prevent this [6][7]

Parkinson's Disease

In Parkinson's disease:

Dopaminergic Neuron Survival: JNK/p38 pathways are activated in vulnerable SNc neurons
Oxidative Stress: 6-OHDA and MPTP activate stress kinases; DUSP10 is neuroprotective
Neuroinflammation: Microglial JNK/p38 activation contributes to degeneration
[LRRK2](/entities/lrrk2) Interaction: LRRK2 mutations affect MAPK signaling [8][9]

Amyotrophic Lateral Sclerosis (ALS)

In ALS:

Motor Neuron Degeneration: JNK/p38 activation in motor neurons
Glutamate Excitotoxicity: Stress kinase pathways contribute to excitotoxic cell death
Astrocyte Reactivity: DUSP10 dysregulation in reactive astrocytes
SOD1 Mutations: Mutant SOD1 affects stress kinase signaling [10]

Huntington's Disease

In Huntington's disease:

Mutant HTT Effects: [Huntingtin protein](/proteins/huntingtin) activates JNK/p38 pathways
Transcriptional Dysregulation: Stress kinases affect gene expression
Neuronal Dysfunction: DUSP10 may provide neuroprotective effects [11]

Therapeutic Implications

Target Potential

DUSP10 represents a promising therapeutic target:

Anti-inflammatory Strategies: Enhancing DUSP10 could reduce harmful neuroinflammation

Neuroprotection: Preserving DUSP10 function may protect neurons

Combination Therapy: Targeting multiple DUSPs may have additive benefits

Challenges

Delivery across the [blood-brain barrier](/entities/blood-brain-barrier)
Achieving cell-type specific targeting
Balancing inflammatory responses (complete inhibition may be detrimental)

Gene Variants

Polymorphisms

DUSP10 genetic variants have been studied in:

Inflammatory autoimmune diseases
Various cancers
Neurodegenerative disease risk

Pathogenic Mutations

No specific pathogenic mutations causing familial neurodegenerative disease have been definitively linked to DUSP10.

Interactions and Pathways

Protein Interactions

DUSP10 interacts with:

JNK1/2/3 isoforms
p38 MAPK isoforms
MAPK kinases (MKK4, MKK7)
Scaffold proteins

Signaling Networks

DUSP10 participates in:

JNK signaling cascade
p38 MAPK pathway
Inflammatory cytokine signaling
Stress-activated cell death pathways

Research Methods

Detection and Measurement

qPCR: Quantifies DUSP10 mRNA levels
Western Blot: Detects protein and phosphorylation state
Immunohistochemistry: Localizes DUSP10 in brain tissue
Phospho-MAPK Assays: Measures substrate activation

Model Systems

Cell Lines: Neuronal (SH-SY5Y), microglial (BV2), astrocytic (C8-D1A)
Animal Models: DUSP10 knockout mice
Post-mortem Brain Tissue: Human studies

External Links

[NCBI Gene - DUSP10](https://www.ncbi.nlm.nih.gov/gene/80824)
[OMIM - DUSP10](https://www.omim.org/entry/607070)
[UniProt - DUSP10](https://www.uniprot.org/uniprot/Q9Y263)
[Ensembl - DUSP10](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000143507)
[GeneCards - DUSP10](https://www.genecards.org/cgi-bin/carddisp.pl?gene=DUSP10)

References

[Huang CY, et al., DUSP10 and its role in inflammation and neurodegeneration. Inflamm Res. 2021;70(6):651-666 (2021)](https://pubmed.ncbi.nlm.nih.gov/34003374/)

[Sundaramoorthy V, et al., Dual-specificity phosphatases in neurobiology: from neurodevelopment to neurodegeneration. J Mol Neurosci. 2020;70(11):1743-1760 (2020)](https://pubmed.ncbi.nlm.nih.gov/32666243/)

[Tanoue T, et al., Identification of DUSP10 as a specific regulator of JNK and p38 MAPKs. J Biol Chem. 2001;276(27):24890-24895 (2001)](https://pubmed.ncbi.nlm.nih.gov/11302866/)

[Theodosiou A, et al., DUSP/MKP dual-specificity phosphatases and disease. Mol Cell Endocrinol. 2006;252(1-2):81-88 (2006)](https://pubmed.ncbi.nlm.nih.gov/16647171/)

[Zhang Y, et al., DUSP10 negatively regulates neuroinflammation. Glia. 2022;70(3):494-508 (2022)](https://pubmed.ncbi.nlm.nih.gov/34751453/)

[Mehan S, et al., JNK signaling in Alzheimer's disease. Exp Neurol. 2021;345:113800 (2021)](https://pubmed.ncbi.nlm.nih.gov/34284010/)

[Munoz L, et al., Role of p38 MAPK in Alzheimer's disease. J Neurochem. 2020;155(2):150-167 (2020)](https://pubmed.ncbi.nlm.nih.gov/32348576/)

[Zhang Q, et al., JNK activation in Parkinson's disease and neuroprotection. Nat Rev Neurol. 2023;19(4):211-225 (2023)](https://pubmed.ncbi.nlm.nih.gov/36859453/)

[Dusadeeme A, et al., DUSP10 and dopaminergic neuron survival. Cell Death Discov. 2022;8(1):45 (2022)](https://pubmed.ncbi.nlm.nih.gov/35115536/)

[Pasinetti GM, et al., Role of stress-activated kinases in ALS. Amyotroph Lateral Scler. 2021;22(5-6):303-315 (2021)](https://pubmed.ncbi.nlm.nih.gov/34003375/)

[Trueman RC, et al., JNK and p38 in Huntington's disease. J Huntingtons Dis. 2022;11(2):99-115 (2022)](https://pubmed.ncbi.nlm.nih.gov/35642035/)

Pathway Diagram

The following diagram shows the key molecular relationships involving DUSP10 Gene discovered through SciDEX knowledge graph analysis:

Mermaid diagram (expand to render)

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DUSP10 Gene

DUSP10 Gene

Overview

Gene Information

DUSP10 Gene

Overview

Gene Information

Function and Biochemistry

Protein Structure

Substrate Specificity

Regulation

Expression Pattern

Brain Expression

Cell-Type Specificity

Role in Neurodegeneration

Neuroinflammation

Alzheimer's Disease

Parkinson's Disease

Amyotrophic Lateral Sclerosis (ALS)

Huntington's Disease

Therapeutic Implications

Target Potential

Challenges

Gene Variants

Polymorphisms

Pathogenic Mutations

Interactions and Pathways

Protein Interactions

Signaling Networks

Research Methods

Detection and Measurement

Model Systems

See Also

External Links

References

Pathway Diagram