We next examined whether on a transcriptomic level ES correlates better with the EFPrx1MSCL+Mcl1 transplant model than other human sarcomas using a comprehensive set of microarray data for different human sarcomas.29 From this data set normalized gene expression for each sarcoma was correlated with the log2 fold change of EFPrx1MSCL+Mcl1 versus wtMSCL. Here, MCL1 is linked to sarcoma.