{"title":"Aberrantly High Expression of Steroid Receptor Coactivator-1 Drives Lung Cancer Growth and Metastasis by Enhancing Cancer Stemness.","authors":"Jinjin Pan, Haoran Zhou, Liang Liu, Shuo Xu, Yu Hou, Ke Cheng, Yuan Li, Chenggong Zhu, Na Wu, Chunmei Bai, Ruoqing Wang, Changhong Liu, Rui Wang, Yuhui Yuan","doi":"10.4062/biomolther.2025.082","DOIUrl":null,"url":null,"abstract":"<p><p>Steroid receptor coactivator-1 (SRC-1) is documented in various cancers and primarily mediates tumor growth and metastasis. Nevertheless, the specific effects and underlying mechanisms of SRC-1 in lung cancer have not been fully explored. This study aims to elucidate the role of SRC-1 in lung cancer progression and its impact on cancer stemness. In this study, we found that SRC-1 was expressed higher in human lung cancer tissues compared to normal lung tissues, with a positive correlation between SRC-1 expression and rates of distant metastasis and lymph node involvement. High SRC-1 expression was correlated with a poor prognosis of lung cancer. <i>In vitro</i>, silencing SRC-1 in lung cancer cell lines repressed cell proliferation, invasion, migration, and enhanced the sensitivity of lung cancer cells to gefitinib. <i>In vivo</i>, silencing SRC-1 in lung cancer cells decreased tumor size and weight in a subcutaneous xenograft mouse model. Furthermore, SRC-1 knockdown inhibited the lung metastasis and reduced twist1 expression. Mechanistically, SRC-1 promoted sphere formation and induced increased expression of the markers of cancer stem cells in lung cancer cells. Besides, SRC-1 positively correlated with c-Myc in human lung cancer. Overexpression of SRC-1 in lung cancer cell lines up-regulated mRNA and protein expression of c-Myc, suggesting that SRC-1 may enhance lung cancer stemness via up-regulating c-Myc. This study demonstrated that aberrantly high levels of SRC-1 in lung cancer contribute to tumor growth and metastasis by enhancing cancer stemness, suggesting that targeting SRC-1 could be a novel potential therapeutic strategy in the treatment of lung cancer.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":""},"PeriodicalIF":3.2000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biomolecules & Therapeutics","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.4062/biomolther.2025.082","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHARMACOLOGY & PHARMACY","Score":null,"Total":0}
引用次数: 0
Abstract
Steroid receptor coactivator-1 (SRC-1) is documented in various cancers and primarily mediates tumor growth and metastasis. Nevertheless, the specific effects and underlying mechanisms of SRC-1 in lung cancer have not been fully explored. This study aims to elucidate the role of SRC-1 in lung cancer progression and its impact on cancer stemness. In this study, we found that SRC-1 was expressed higher in human lung cancer tissues compared to normal lung tissues, with a positive correlation between SRC-1 expression and rates of distant metastasis and lymph node involvement. High SRC-1 expression was correlated with a poor prognosis of lung cancer. In vitro, silencing SRC-1 in lung cancer cell lines repressed cell proliferation, invasion, migration, and enhanced the sensitivity of lung cancer cells to gefitinib. In vivo, silencing SRC-1 in lung cancer cells decreased tumor size and weight in a subcutaneous xenograft mouse model. Furthermore, SRC-1 knockdown inhibited the lung metastasis and reduced twist1 expression. Mechanistically, SRC-1 promoted sphere formation and induced increased expression of the markers of cancer stem cells in lung cancer cells. Besides, SRC-1 positively correlated with c-Myc in human lung cancer. Overexpression of SRC-1 in lung cancer cell lines up-regulated mRNA and protein expression of c-Myc, suggesting that SRC-1 may enhance lung cancer stemness via up-regulating c-Myc. This study demonstrated that aberrantly high levels of SRC-1 in lung cancer contribute to tumor growth and metastasis by enhancing cancer stemness, suggesting that targeting SRC-1 could be a novel potential therapeutic strategy in the treatment of lung cancer.
期刊介绍:
Biomolecules & Therapeutics (Biomolecules & Therapeutics) (Print ISSN 1976-9148, Online ISSN 2005-4483) is an international, peer-reviewed, open access journal that covers pharmacological and toxicological fields related to bioactive molecules and therapeutics. It was launched in 1993 as "The Journal of Applied Pharmacology (ISSN 1225-6110)", and renamed "Biomolecules & Therapeutics" (Biomol Ther: abbreviated form) in 2008 (Volume 16, No. 1). It is published bimonthly in January, March, May, July, September and November. All manuscripts should be creative, informative, and contribute to the development of new drugs. Articles in the following categories are published: review articles and research articles.