CASP7 and myelodysplastic syndrome: Given the different sample sources between MDS patients and healthy controls (BM vs. PB), we also assessed the impact of this factor through a comparative mRNA expression analysis of the ATG, DRAM, AMBRA1, PI3KC3, UVRAG, TGM2, BCL2, CASP7, and LC3B genes in BM and PB samples from three MDS patients.