How Do Signaling Molecules Affect Cellular Context?
Signaling molecules, such as growth factors, cytokines, and hormones, play a critical role in defining cellular context. They bind to specific receptors on the cell surface, triggering intracellular signaling cascades that alter gene expression and cellular behavior. For instance, growth factors like Epidermal Growth Factor (EGF) can stimulate cell proliferation, while cytokines like interleukins can modulate immune responses.