Genetic variation in genes regulating metabolism may be advantageous in some settings but not others. The non-failing adult heart relies heavily on fatty acids as a fuel substrate and source of ATP. In contrast, the failing heart favors glucose as a fuel source. A bootstrap analysis for genes with deviant...
Membrane contact sites (MCSs) facilitate communication and organization of organelles that contribute to fundamental cellular processes. It has become increasingly appreciated how extensive and essential MCSs are for cellular health, and this field is rapidly growing. We use budding yeast as a model system to study the mechanisms of how...
Mitochondria-lysosome contacts are recently identified sites for mediating crosstalk between both organelles, but their role in normal and diseased human neurons remains unknown. We used super-resolution and live-cell microscopy in human iPSC-derived neurons to demonstrate that mitochondria-lysosome contacts can dynamically form in the soma, axons, and dendrites of human neurons,...
Endothelial cells (ECs) require glycolysis for proliferation and migration during angiogenesis; however, the necessity for the mitochondrial respiratory chain during angiogenesis is not known. In this study, we report that inhibition of respiratory chain complex III impairs proliferation, but not migration of ECs in vitro by decreasing the NAD+/NADH ratio....