Most solid tumors contain a subfraction of cells with stem/progenitor cell features. and WNT-signaling 2 three cell lines showed decreased expression of stem cell markers decreased aldehyde dehydrogenase activity attenuated WNT-signaling and lost the capacity to form colonospheres and 3) two cell lines displayed prominent expression of ABC transporters with a heterogeneous response for stem… Continue reading Most solid tumors contain a subfraction of cells with stem/progenitor cell