scRNAseq of Cyp11a1-expressing cells from mouse melanoma model derived tumors
Tumours induce de novo steroidogenesis in immune cells.  We wanted to define the gene expression identity of intratumoural steroidogenic immune cells and compare them with the transcriptome with non-steroidogenic cells. Cyp11a1 expression is a faithful biomarker of de novo steroidogenesis (i.e. Cyp11a1+ cells are steroidogenic and Cyp11a1- cells are non-steroidogenic). We inoculated B16-F10 tumor in Cyp11a1-mCherry reporter mice, enriched and purified intratumoral Cyp11a1-mCherry+ and Cyp11a1-mCherry- cells  by cell sorting into 96-well plates [with a ratio of 79:15 (mCherry+ : mCherry-) cells per plate]  and performed  scRNA-seq using SMART-Seq2 platform.