HSPB1 and cancer: Subpopulation B consisted of 121 cells (29.1%) and showed overexpression of 13 genes, including seven cancer genes (HSPB1, ANXA1, SLPI, KRT8, KRT19, KLK7, and ABL2) and several Keratin genes (KRT8, KRT7, KRT19, and KRT6B).