Rashim Pal Singh, Danny V Jeyaraju, Veronique Voisin, Rose Hurren, Changjiang Xu, James R Hawley, Samir H Barghout, Dilshad H Khan, Marcela Gronda, Xiaoming Wang, Yulia Jitkova, David Sharon, Sanduni Liyanagae, Neil MacLean, Ayesh K Seneviratene, Sara Mirali, Adina Borenstein, Geethu E Thomas, Joelle Soriano, Elias Orouji, Mark D Minden, Andrea Arruda, Steven M Chan, Gary D Bader, Mathieu Lupien, Aaron D Schimmer
Leukemic stem cells (LSCs) rely on oxidative metabolism and are differentially sensitive to targeting mitochondrial pathways, which spares normal hematopoietic cells. A subset of mitochondrial proteins is folded in the intermembrane space via the mitochondrial intermembrane assembly (MIA) pathway. We found increased mRNA expression of MIA pathway substrates in acute myeloid leukemia (AML) stem cells. Therefore, we evaluated the effects of inhibiting this pathway in AML. Genetic and chemical inhibition of ALR reduces AML growth and viability, disrupts LSC self-renewal, and induces their differentiation...
June 4, 2020: Cell Stem Cell