Comparison of CGD transgene-expressing and non-expressing tumor cells from a MPNST allograft model
We devised a transgene that expresses in the neural crest lineage cells at embryonic stage day 13.5. The transgene has an inducible Cre cassette and was used to induce Trp53 and Nf1 gene recombination in the cells of dorsal root ganglia and boundary cap of nerve roots (DRG&BC) at E13.5. The malignant peripheral nerve sheath tumor (MPNST) allograft model was generated by sciatic nerve injection using the recombined E13.5 DRG&BC cells. The nuclear localized eGFP from the transgene was used to facilitate the florescence activated cell sorting (FACS) of GFP+ and GFP- tumor cells after removal of wildtype cells from the dissociated tumors, including immune cells, endothelia cells and blood cells. GFP+ and GFP- tumor cells were harvested from 5 different allograft MPNSTs. Total RNA were prepared from 10 samples were sequenced on Hiseq4000 sequencer. The data was to support the transgene-labeled cancer stem cell population in MPNST mouse models. Overall design: GFP+ and GFP- tumor cell populations were sorted out from 5 MPNST allograft models. The paired comparison was performed to obtain differentially expressed genes between the GFP+ and GFP- cells.