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Updated: Jun 29, 2025

Defining Gene Functions in Tumorigenesis by Ex vivo Ablation of Floxed Alleles in Malignant Peripheral Nerve Sheath Tumor Cells
Published on: August 25, 2021
The multifaceted therapeutic value of targeting steroid receptor coactivator-1 in tumorigenesis
Qiang Chen1,2, Peng Guo3,4, Yilin Hong4
1Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China. chenqiang1@nbu.edu.cn.
Abstract:
Steroid receptor coactivator-1 (SRC-1, also known as NCOA1) frequently functions as a transcriptional coactivator by directly binding to transcription factors and recruiting to the target gene promoters to promote gene transcription by increasing chromatin accessibility and promoting the formation of transcriptional complexes. In recent decades, various biological and pathological functions of SRC-1 have been reported, especially in the context of tumorigenesis. SRC-1 is a facilitator of the progression of multiple cancers, including breast cancer, prostate cancer, gastrointestinal cancer, neurological cancer, and female genital system cancer. The emerging multiorgan oncogenic role of SRC-1 is still being studied and may not be limited to only steroid hormone-producing tissues. Growing evidence suggests that SRC-1 promotes target gene expression by directly binding to transcription factors, which may constitute a novel coactivation pattern independent of AR or ER. In addition, the antitumour effect of pharmacological inhibition of SRC-1 with agents including various small molecules or naturally active compounds has been reported, but their practical application in clinical cancer therapy is very limited. For this review, we gathered typical evidence on the oncogenic role of SRC-1, highlighted its major collaborators and regulatory genes, and mapped the potential mechanisms by which SRC-1 promotes primary tumour progression.
Insights
Steroid receptor coactivator-1 (SRC-1) drives cancer progression by altering gene expression and chromatin accessibility. While inhibiting SRC-1 shows anti-tumor potential, its clinical application for cancer therapy remains limited.
Area of Science:
- Molecular Biology
- Oncology
- Epigenetics
Background:
- Steroid receptor coactivator-1 (SRC-1, also known as NCOA1) is a key transcriptional coactivator.
- SRC-1 plays a significant role in tumorigenesis across various cancers, including breast, prostate, and gastrointestinal cancers.
- Its function extends beyond steroid hormone-producing tissues, indicating a broader oncogenic role.
Purpose of the Study:
- To review the oncogenic role of SRC-1 in cancer progression.
- To identify SRC-1's major collaborators and regulatory genes.
- To map the mechanisms by which SRC-1 promotes primary tumor progression.
Main Methods:
- Literature review of evidence on SRC-1's oncogenic functions.
- Analysis of SRC-1's interactions with transcription factors and regulatory genes.
- Mapping of molecular mechanisms involved in SRC-1-mediated gene transcription and chromatin remodeling.
Main Results:
- SRC-1 promotes gene transcription by enhancing chromatin accessibility and forming transcriptional complexes.
- SRC-1 facilitates the progression of multiple cancer types.
- Emerging evidence suggests novel coactivation patterns independent of androgen receptor (AR) or estrogen receptor (ER).
Conclusions:
- SRC-1 is a critical facilitator of tumor progression through diverse molecular mechanisms.
- Pharmacological inhibition of SRC-1 presents a potential therapeutic strategy, but clinical applications are currently limited.
- Further research is needed to fully elucidate SRC-1's multiorgan oncogenic role and develop effective therapeutic interventions.
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