Abstract:BackgroundIntratumoral heterogeneity (ITH) is cellular and molecular diversity within a tumor. ITH is linked to failure of immunotherapy in multiple cancer types. One of the suggested mechanisms of this failure is the absence of a productive immune response, which can be driven by the dominance of a tumor population that creates immunosuppressive microenvironment. However, the molecular mechanisms that mediate such dominant immunosuppressive effects and how a dominant immunosuppressive tumor population affects… Show more
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