The neural crest is a remarkable embryonic population of cells found only in vertebrates and has the potential to give rise to many different cell types contrib

T cells play a vital role mediating adaptive immunity, a specific acquired resistance to an infectious agent produced by the introduction of an antigen. There a

Intracellular cell signaling is a well understood process. However, extracellular signals such as hormones, adipokines, cytokines and neurotransmitters are just