Xiaodan Zhu, Yiyang Qian, Quan Tang, Jiahui Li, Yuqing Geng, Shixia Gong, Chunhui Jin
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It further examines the biological roles of ecDNA in augmenting oncogene expression, fostering tumor heterogeneity, and facilitating immune evasion.</p><p><strong>Results: </strong>Epidemiological studies indicate significant variability in the distribution of ecDNA across different breast cancer subtypes, with a notable association with invasive subtypes, such as triple-negative breast cancer. The presence of ecDNA is linked to poor prognosis and treatment resistance in patients. Current detection technologies for ecDNA include molecular biology and imaging techniques, and its detectability in plasma underscores its potential as a biomarker for liquid biopsy.</p><p><strong>Conclusions: </strong>The development of ecDNA-targeted therapies and their integration with immunotherapy strategies offers promising new avenues for breast cancer treatment. Despite challenges such as incomplete elucidation of mechanisms, standardization of detection methods, and ethical considerations, ecDNA remains a valuable biomarker and therapeutic target in breast cancer. Future research is anticipated to advance its clinical transformation and application in individualized treatment.</p>","PeriodicalId":139,"journal":{"name":"Cancer Medicine","volume":"14 19","pages":"e71285"},"PeriodicalIF":3.1000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Research Advances of Extrachromosomal Circular DNA in Breast Cancer.\",\"authors\":\"Xiaodan Zhu, Yiyang Qian, Quan Tang, Jiahui Li, Yuqing Geng, Shixia Gong, Chunhui Jin\",\"doi\":\"10.1002/cam4.71285\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>This article presents an extensive review of the advancements in research concerning extrachromosomal circular DNA (ecDNA) within the context of breast cancer. As a distinct form of DNA, ecDNA is critically involved in the initiation, progression, diagnosis, and treatment of breast cancer.</p><p><strong>Methods: </strong>The article provides a comprehensive analysis of the mechanisms underlying the formation of ecDNA, highlighting factors such as aberrant DNA damage repair and chromosomal rearrangements. It further examines the biological roles of ecDNA in augmenting oncogene expression, fostering tumor heterogeneity, and facilitating immune evasion.</p><p><strong>Results: </strong>Epidemiological studies indicate significant variability in the distribution of ecDNA across different breast cancer subtypes, with a notable association with invasive subtypes, such as triple-negative breast cancer. The presence of ecDNA is linked to poor prognosis and treatment resistance in patients. Current detection technologies for ecDNA include molecular biology and imaging techniques, and its detectability in plasma underscores its potential as a biomarker for liquid biopsy.</p><p><strong>Conclusions: </strong>The development of ecDNA-targeted therapies and their integration with immunotherapy strategies offers promising new avenues for breast cancer treatment. Despite challenges such as incomplete elucidation of mechanisms, standardization of detection methods, and ethical considerations, ecDNA remains a valuable biomarker and therapeutic target in breast cancer. Future research is anticipated to advance its clinical transformation and application in individualized treatment.</p>\",\"PeriodicalId\":139,\"journal\":{\"name\":\"Cancer Medicine\",\"volume\":\"14 19\",\"pages\":\"e71285\"},\"PeriodicalIF\":3.1000,\"publicationDate\":\"2025-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cancer Medicine\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1002/cam4.71285\",\"RegionNum\":2,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ONCOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cancer Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1002/cam4.71285","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ONCOLOGY","Score":null,"Total":0}
Research Advances of Extrachromosomal Circular DNA in Breast Cancer.
Background: This article presents an extensive review of the advancements in research concerning extrachromosomal circular DNA (ecDNA) within the context of breast cancer. As a distinct form of DNA, ecDNA is critically involved in the initiation, progression, diagnosis, and treatment of breast cancer.
Methods: The article provides a comprehensive analysis of the mechanisms underlying the formation of ecDNA, highlighting factors such as aberrant DNA damage repair and chromosomal rearrangements. It further examines the biological roles of ecDNA in augmenting oncogene expression, fostering tumor heterogeneity, and facilitating immune evasion.
Results: Epidemiological studies indicate significant variability in the distribution of ecDNA across different breast cancer subtypes, with a notable association with invasive subtypes, such as triple-negative breast cancer. The presence of ecDNA is linked to poor prognosis and treatment resistance in patients. Current detection technologies for ecDNA include molecular biology and imaging techniques, and its detectability in plasma underscores its potential as a biomarker for liquid biopsy.
Conclusions: The development of ecDNA-targeted therapies and their integration with immunotherapy strategies offers promising new avenues for breast cancer treatment. Despite challenges such as incomplete elucidation of mechanisms, standardization of detection methods, and ethical considerations, ecDNA remains a valuable biomarker and therapeutic target in breast cancer. Future research is anticipated to advance its clinical transformation and application in individualized treatment.
期刊介绍：
Cancer Medicine is a peer-reviewed, open access, interdisciplinary journal providing rapid publication of research from global biomedical researchers across the cancer sciences. The journal will consider submissions from all oncologic specialties, including, but not limited to, the following areas:
Clinical Cancer Research
Translational research ∙ clinical trials ∙ chemotherapy ∙ radiation therapy ∙ surgical therapy ∙ clinical observations ∙ clinical guidelines ∙ genetic consultation ∙ ethical considerations
Cancer Biology:
Molecular biology ∙ cellular biology ∙ molecular genetics ∙ genomics ∙ immunology ∙ epigenetics ∙ metabolic studies ∙ proteomics ∙ cytopathology ∙ carcinogenesis ∙ drug discovery and delivery.
Cancer Prevention:
Behavioral science ∙ psychosocial studies ∙ screening ∙ nutrition ∙ epidemiology and prevention ∙ community outreach.
Bioinformatics:
Gene expressions profiles ∙ gene regulation networks ∙ genome bioinformatics ∙ pathwayanalysis ∙ prognostic biomarkers.
Cancer Medicine publishes original research articles, systematic reviews, meta-analyses, and research methods papers, along with invited editorials and commentaries. Original research papers must report well-conducted research with conclusions supported by the data presented in the paper.
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