Mercadante Marisa, Scheben Armin, Estrada Jacob, Savas-Carstens Jan, Sullivan William, Housel Nicholas, Volpari Tatiana, Hebner Jax, Sapar Maria, Rusielewicz Tom, Monsma Frederick J, Semrau Stefan, Wang Yinan, Martin Laura A
The New York Stem Cell Foundation Research Institute, New York, NY.
The Stevens Institute of Technology, Hoboken, NJ.
bioRxiv. 2025 Mar 7:2025.03.06.641285. doi: 10.1101/2025.03.06.641285.
Intratumoral heterogeneity drives therapy resistance and relapses in advanced stage cancers, such as ovarian cancer. Here, we present a live cell imaging assay using patient-derived ovarian cancer organoids for real time capture and quantification of natural killer cell-mediated apoptotic events in >500 organoids simultaneously. Our assay revealed significant inter- and intratumor response heterogeneity and identified a rare resistant organoid population, opening avenues to test immunomodulatory strategies that overcome resistance.
肿瘤内异质性导致晚期癌症(如卵巢癌)产生治疗抗性和复发。在此,我们展示了一种活细胞成像分析方法,该方法使用患者来源的卵巢癌类器官,可同时实时捕获和量化500多个类器官中自然杀伤细胞介导的凋亡事件。我们的分析揭示了显著的肿瘤间和肿瘤内反应异质性,并鉴定出一种罕见的抗性类器官群体,为测试克服抗性的免疫调节策略开辟了道路。