This week’s articles highlight how cancer stem cells drive metastasis, but not primary tumor growth, and how a mitochondrial protein changes lipid metabolism to inhibit the proliferation of breast cancer cells.
CANCER
Lgr5-positive cells drive metastasis
de Sousa e Melo et al. found that deletion of cancer stem cells expressing the GPCR Lrg5 from mouse intestinal tumors did not prevent tumor growth, but instead prevented metastisis to the liver (see also Greten).
Mitochondrial lipid metabolism and tumorigenesis
Keckesova et al. show that the mitochondrial protein LACTB suppresses the proliferation of breast cancer cells by altering lipid metabolism and differentiation state.