Intratumoral interferon-gamma increases chemokine production but fails to increase T cell infiltration of human melanoma metastases

Introduction Optimal approaches to induce T cell infiltration of tumors are not known. Chemokines CXCL9, CXCL10, and CXCL11 support effector T cell recruitment and may be induced by IFN. This study tests the hypothesis that intratumoral administration of IFNγ will induce CXCL9–11 and will induce T cell recruitment and anti-tumor immune signatures in melanoma metastases.