Expression profile of shMCT-1 in 4T1 metastatic murine triple-negative breast cancer (TNBC) cell lines in response to anti-IL6R immunotherapy

Malignant T-cell amplified sequence (MCT-1 or MCTS1) is an oncoprotein that regulates translation re-initiation, ribosomal recycling, and tumorigenicity. Given that MCT-1 amplifies interleukin-6 (IL-6) trans-signaling by elevating interaction between interleukin-6 receptor (IL-6R) and glycoprotein 130 (gp130), we aimed to dissect whether targeting IL-6R alters transcriptional profile of TNBC cells with different MCT-1 background. Through RNA-seq, we have characterized that anti-IL6R immunotherapy suppressed genes involved in cell proliferation and metastatic cascades but enriched genes associated in cell adhesion in 4T1 murine TNBC cells with shMCT-1. Samples include two independent biological replicates of the scramble cells and MCT-1 silencing (shMCT-1) cells treated with anti-IL6R