An immune-active tumor microenvironment favors clinical response to ipilimumab.

ABSTRACT:

Purpose

Ipilimumab, a fully human monoclonal antibody specific to CTLA-4, has been shown to improve overall survival in metastatic melanoma patients. As a consequence of CTLA-4 blockade, ipilimumab treatment is associated with proliferation and activation of peripheral T cells. To better understand various tumor-associated components that may influence the clinical outcome of ipilimumab treatment, gene expression profiles of tumors from patients treated with ipilimumab were characterized.

Experimental design

Gene expression profiling was performed on tumor biopsies collected from 45 melanoma patients before and 3 weeks after the start of treatment in a phase II clinical trial.

Results

Analysis of pre-treatment tumors indicated that patients with high baseline expressi

SUBMITTER: Ji RR 

PROVIDER: S-EPMC11028506 | biostudies-literature | 2012 Jul

REPOSITORIES: biostudies-literature