[biological_process] bone development <sep> bone remodeling <sep> cell communication by electrical coupling <sep> cell-cell signaling <sep> cellular response to platelet-derived growth factor stimulus <sep> heart development <sep> microtubule-based transport <sep> negative regulation of cell growth <sep> positive regulation of smooth muscle cell chemotaxis <sep> regulation of apoptotic process <sep> response to ischemia <sep> response to wounding <sep> spermatogenesis