{"title":"In Vitro Tumorigenic Assay: A Tumor Sphere Assay for Cancer Stem Cells.","authors":"Amani Yehya, Hisham Bahmad, Wassim Abou-Kheir","doi":"10.1007/978-1-0716-3730-2_7","DOIUrl":null,"url":null,"abstract":"<p><p>Cancer stem cells (CSCs) represent a subpopulation of tumor cells that are thought to be responsible for therapy resistance, recurrence, and metastasis through their capacity to self-renew and differentiate into heterogeneous downstream lineages of cancer cells. Understanding the features of CSCs is crucial for managing cancer disease and establishing potential targeted therapeutics. Tumor sphere formation assay is a widely used in vitro method that selects and enriches the CSC subpopulation from the total population of cancer cells, based on their inherent ability to grow and clonally expand in serum-free and nonadherent culture conditions. Here we provide a detailed methodology to generate and propagate spheres from isolated cell suspensions of tumor tissues and cell lines using a semisolid Matrigel<sup>TM</sup>-based three-dimensional (3D) culture system.</p>","PeriodicalId":18490,"journal":{"name":"Methods in molecular biology","volume":"2777 ","pages":"91-98"},"PeriodicalIF":0.0000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Methods in molecular biology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/978-1-0716-3730-2_7","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Biochemistry, Genetics and Molecular Biology","Score":null,"Total":0}
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Abstract
Cancer stem cells (CSCs) represent a subpopulation of tumor cells that are thought to be responsible for therapy resistance, recurrence, and metastasis through their capacity to self-renew and differentiate into heterogeneous downstream lineages of cancer cells. Understanding the features of CSCs is crucial for managing cancer disease and establishing potential targeted therapeutics. Tumor sphere formation assay is a widely used in vitro method that selects and enriches the CSC subpopulation from the total population of cancer cells, based on their inherent ability to grow and clonally expand in serum-free and nonadherent culture conditions. Here we provide a detailed methodology to generate and propagate spheres from isolated cell suspensions of tumor tissues and cell lines using a semisolid MatrigelTM-based three-dimensional (3D) culture system.
期刊介绍：
For over 20 years, biological scientists have come to rely on the research protocols and methodologies in the critically acclaimed Methods in Molecular Biology series. The series was the first to introduce the step-by-step protocols approach that has become the standard in all biomedical protocol publishing. Each protocol is provided in readily-reproducible step-by-step fashion, opening with an introductory overview, a list of the materials and reagents needed to complete the experiment, and followed by a detailed procedure that is supported with a helpful notes section offering tips and tricks of the trade as well as troubleshooting advice.
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