DUSP10 Gene

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

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

<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

Substrate Specificity

DUSP10 has broad specificity for stress-activated MAP kinases:

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

Regulation

DUSP10 expression and activity are regulated at multiple levels:

Expression Pattern

Brain Expression

In the central nervous system, DUSP10 is expressed in:

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:

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:

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

See Also

• [Dual Specificity Phosphatases](/proteins/dual-specificity-phosphatases)
• [JNK Signaling](/mechanisms/jnk-pathway-neurodegeneration)
• [p38 MAPK Signaling](/mechanisms/p38-mapk-signaling-neurodegeneration)
• [Neuroinflammation](/mechanisms/neuroinflammation-pathway)
• [Alzheimer's Disease](/diseases/alzheimers-disease)
• [Parkinson's Disease](/diseases/parkinsons-disease)
• [Amyotrophic Lateral Sclerosis](/diseases/amyotrophic-lateral-sclerosis)
• [Huntington's Disease](/diseases/huntington-disease)
• [Microglia](/cell-types/microglia)

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

Pathway Diagram

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