TY - JOUR KW - Animals KW - B7-H1 Antigen KW - Coculture Techniques KW - Female KW - Humans KW - Immunotherapy KW - Male KW - Mice KW - Mice, Inbred BALB C KW - Models, Immunological KW - Neoplasm Proteins KW - Neoplasms, Experimental KW - organoids KW - PD-1 KW - PDO KW - Receptors, Antigen, T-Cell KW - T cell receptor KW - TCR KW - Tumor Microenvironment KW - Cancer KW - checkpoint inhibitor KW - Immunotherapy KW - organoid KW - single-cell RNA-seq KW - tumor-infiltrating lymphocyte AU - James T. Neal AU - Xingnan Li AU - Junjie Zhu AU - Valeria Giangarra AU - Caitlin L. Grzeskowiak AU - Jihang Ju AU - Iris H. Liu AU - Shin-Heng Chiou AU - Ameen A. Salahudeen AU - Amber R. Smith AU - Brian C. Deutsch AU - Lillian Liao AU - Allison J. Zemek AU - Fan Zhao AU - Kasper Karlsson AU - Liora M. Schultz AU - Thomas J. Metzner AU - Lincoln D. Nadauld AU - Yuen-Yi Tseng AU - Sahar Alkhairy AU - Coyin Oh AU - Paula Keskula AU - Daniel Mendoza-Villanueva AU - Francisco M. De La Vega AU - Pamela L. Kunz AU - Joseph C. Liao AU - John T. Leppert AU - John B. Sunwoo AU - Chiara Sabatti AU - Jesse S. Boehm AU - William C. Hahn AU - Grace X. Y. Zheng AU - Mark M. Davis AU - Calvin J. Kuo AB - In vitro cancer cultures, including three-dimensional organoids, typically contain exclusively neoplastic epithelium but require artificial reconstitution to recapitulate the tumor microenvironment (TME). The co-culture of primary tumor epithelia with endogenous, syngeneic tumor-infiltrating lymphocytes (TILs) as a cohesive unit has been particularly elusive. Here, an air-liquid interface (ALI) method propagated patient-derived organoids (PDOs) from >100 human biopsies or mouse tumors in syngeneic immunocompetent hosts as tumor epithelia with native embedded immune cells (T, B, NK, macrophages). Robust droplet-based, single-cell simultaneous determination of gene expression and immune repertoire indicated that PDO TILs accurately preserved the original tumor T cell receptor (TCR) spectrum. Crucially, human and murine PDOs successfully modeled immune checkpoint blockade (ICB) with anti-PD-1- and/or anti-PD-L1 expanding and activating tumor antigen-specific TILs and eliciting tumor cytotoxicity. Organoid-based propagation of primary tumor epithelium en bloc with endogenous immune stroma should enable immuno-oncology investigations within the TME and facilitate personalized immunotherapy testing. BT - Cell DA - 2018-12-13 DO - 10.1016/j.cell.2018.11.021 IS - 7 LA - eng N2 - In vitro cancer cultures, including three-dimensional organoids, typically contain exclusively neoplastic epithelium but require artificial reconstitution to recapitulate the tumor microenvironment (TME). The co-culture of primary tumor epithelia with endogenous, syngeneic tumor-infiltrating lymphocytes (TILs) as a cohesive unit has been particularly elusive. Here, an air-liquid interface (ALI) method propagated patient-derived organoids (PDOs) from >100 human biopsies or mouse tumors in syngeneic immunocompetent hosts as tumor epithelia with native embedded immune cells (T, B, NK, macrophages). Robust droplet-based, single-cell simultaneous determination of gene expression and immune repertoire indicated that PDO TILs accurately preserved the original tumor T cell receptor (TCR) spectrum. Crucially, human and murine PDOs successfully modeled immune checkpoint blockade (ICB) with anti-PD-1- and/or anti-PD-L1 expanding and activating tumor antigen-specific TILs and eliciting tumor cytotoxicity. Organoid-based propagation of primary tumor epithelium en bloc with endogenous immune stroma should enable immuno-oncology investigations within the TME and facilitate personalized immunotherapy testing. PY - 2018 SP - 1972 EP - 1988.e16 T2 - Cell TI - Organoid Modeling of the Tumor Immune Microenvironment VL - 175 SN - 1097-4172 ER -