Abstract:Intratumoral heterogeneity (ITH) – cellular and molecular diversity within a tumor – is linked to failure of immunotherapy in multiple cancer types. A high degree of ITH is associated with poor infiltration of T cells into the tumor and resistance to immune checkpoint blockade (ICB) therapy. To determine how distinct tumor populations within heterogeneous tumors shape the immune microenvironment and how this impacts therapy response, we modeled heterogeneous tumors composed of an RFP-tagged immunosuppressive t… Show more
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