Most intrahepatic cholangiocarcinomas (ICCs) present as cold tumors.
Immune evasion contributes to the cold phenotype of ICCs.
Cold ICCs are associated with an immunosuppressive tumor immune microenvironment.
Igniting cold ICCs can potentiate the efficacy of immunotherapy.
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Characteristics of the three immunophenotypes of ICC
Mechanisms of immune evasion in cold ICCs
Origin, recruitment and phenotypic alteration of cellular components in ICC
Tumor immune microenvironment of ICC
Summary of the therapeutic strategies used to treat cold ICCs.
Therapeutic strategies targeting cellular components
Potential targets and biomarkers of novel immunotherapies for ICC