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Updated: May 28, 2026

Biochemical Reconstitution of Steroid Receptor•Hsp90 Protein Complexes and Reactivation of Ligand Binding
Published on: September 21, 2011
Steroid receptor coactivator-1: integrating steroid hormone signals to regulate brain function and disease
Yinghui Li1, Bing Yang1, Shiwei Xu1
1Department of Neurology, Yilong County People's Hospital, Nanchong, Sichuan, China.
Abstract:
Steroid receptor coactivator-1 (SRC-1), also known as nuclear receptor coactivator-1 (NCOA1), represents the first identified member of the p160 nuclear receptor coactivator family and plays a pivotal role in integrating steroid hormone signals, regulating gene transcription, and maintaining neural homeostasis in the central nervous system (CNS). SRC-1 exhibits region-specific, cell-type-specific, and sexually dimorphic expression patterns in the brain, with prominent distribution in key regions including the hippocampus, cerebral cortex, hypothalamus, and amygdala. Functional studies demonstrate that SRC-1 participates in diverse neural functions such as learning and memory, energy metabolism, emotional regulation, and reproductive behavior through modulation of synaptic plasticity-related genes, neurotrophic factors, and metabolic pathways. Aberrant SRC-1 expression is closely associated with neurodegenerative diseases, autism spectrum disorders, and glioblastoma. This review systematically summarizes the molecular structure, expression characteristics, physiological functions of SRC-1, and its roles in neurological disorders, while discussing its potential applications as a diagnostic biomarker and therapeutic target.
Insights
Steroid receptor coactivator-1 (SRC-1) is crucial for brain function, regulating gene transcription and neural homeostasis. Its dysregulation links to neurological disorders, highlighting its potential as a therapeutic target.
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Steroid receptor coactivator-1 (SRC-1), also known as NCOA1, is the first identified p160 family member.
- SRC-1 is vital for integrating steroid hormone signals and regulating gene transcription.
- It plays a key role in maintaining neural homeostasis within the central nervous system (CNS).
Purpose of the Study:
- To systematically review the molecular structure, expression, and functions of SRC-1.
- To explore the role of SRC-1 in various neurological disorders.
- To discuss SRC-1's potential as a diagnostic biomarker and therapeutic target.
Main Methods:
- Literature review of studies on SRC-1 molecular structure and expression.
- Analysis of functional studies detailing SRC-1's role in neural processes.
- Examination of research linking SRC-1 to neurological diseases.
Main Results:
- SRC-1 shows region-specific, cell-type-specific, and sexually dimorphic expression in the brain (hippocampus, cortex, hypothalamus, amygdala).
- SRC-1 influences learning, memory, metabolism, emotion, and reproduction by modulating synaptic plasticity and neurotrophic factors.
- Abnormal SRC-1 expression is associated with neurodegenerative diseases, autism, and glioblastoma.
Conclusions:
- SRC-1 is a critical regulator of CNS functions with diverse physiological roles.
- SRC-1's involvement in neurological disorders suggests its significance in disease pathogenesis.
- SRC-1 presents promising potential as a biomarker and therapeutic target for neurological conditions.
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