PGC-1 Alpha

Introduction

Pgc 1 Alpha is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

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Overview

PGC-1 Alpha (PPARGC1A) is a protein involved in cellular signaling and molecular processes. It is expressed in various tissues including the brain and plays roles in neuronal function and disease mechanisms.

Structure

PGC-1alpha has multiple activation domains and interacts with many transcription factors.

Normal Function

PGC-1alpha is a transcriptional coactivator that regulates mitochondrial biogenesis, oxidative metabolism, and antioxidant responses. It activates NRF-1, NRF-2, and ERR-alpha to drive mitochondrial gene expression.

Role in Disease

PGC-1alpha dysfunction is implicated in Parkinson’s disease, Huntington’s disease, and ALS. Exercise induces PGC-1alpha.

Therapeutic Targeting

No direct PGC-1alpha drugs. Exercise and AMPK activators (metformin) enhance PGC-1alpha activity.

Background

The study of Pgc 1 Alpha has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.

Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.

Pathway & Interaction Diagram

Interactive diagram showing PPARGC1A’s key relationships in the SciDEX knowledge graph (15 connections shown).

flowchart TD
    PPARGC1A(["PPARGC1A"])
    PGC1A(["PGC1A"])
    SQSTM1(["SQSTM1"])
    autophagy["autophagy"]
    senescence("senescence")
    mitochondrial_biogenesis["mitochondrial biogenesis"]
    abdominal_aortic_aneurysm["abdominal aortic aneurysm"]
    PPARA(["PPARA"])
    PPARD(["PPARD"])
    kynurenine_aminotransferases(["kynurenine aminotransferases"])
    depression["depression"]
    lipid_metabolism["lipid metabolism"]
    fatty_acid_oxidation["fatty acid oxidation"]
    lipid_droplet_accumulation("lipid droplet accumulation")
    oxidative_phosphorylation["oxidative phosphorylation"]
    ATP_production["ATP production"]

    PPARGC1A -->|"encodes"| PGC1A
    PPARGC1A -->|"regulates"| SQSTM1
    PPARGC1A -->|"activates"| autophagy
    PPARGC1A -.->|"inhibits"| senescence
    PPARGC1A -->|"regulates"| mitochondrial_biogenesis
    PPARGC1A -->|"protects against"| abdominal_aortic_aneurysm
    PPARGC1A -->|"activates"| PPARA
    PPARGC1A -->|"activates"| PPARD
    PPARGC1A -->|"increases risk"| kynurenine_aminotransferases
    PPARGC1A -->|"protects against"| depression
    PPARGC1A -->|"regulates"| lipid_metabolism
    PPARGC1A -->|"associated with"| fatty_acid_oxidation
    PPARGC1A -.->|"inhibits"| lipid_droplet_accumulation
    PPARGC1A -->|"associated with"| oxidative_phosphorylation
    PPARGC1A -->|"increases risk"| ATP_production

    style PPARGC1A fill:#006494,stroke:#4fc3f7,stroke-width:3px,color:#e0e0e0

References

References

• Lin J et al. (2004) Transcriptional co-activator PGC-1alpha. Cell 119(1):5-7. PMID: 15620178

• Handschin C et al. (2007) The biology of PGC-1alpha. Physiol Rev 87(2):367-398. PMID: 17446436

• Luo Y et al. (2019) PGC-1alpha in neurodegenerative diseases. Mol Neurobiol 56(5):3610-3624. PMID: 30117104

• Chaturvedi RK et al. (2009) PGC-1alpha in Parkinson’s disease. J Neurochem 110(3):857-868. PMID: 19457121

• Wrann CD et al. (2013) Exercise induces PGC-1alpha in the brain. J Neurosci 33(1):195-207. PMID: 23283329

• Katsouri L et al. (2020) PGC-1alpha and mitochondrial function. Neuropharmacology 175:108158. PMID: 32461084

• Mudò G et al. (2012) PGC-1alpha in neuroprotection. Cell Death Dis 3:e285. PMID: 22258406

• Jiang H et al. (2021) PGC-1alpha in ALS. Acta Neuropathol Commun 9(1):139. PMID: 34376275

References