growth factor Any of various chemicals, particularly polypeptides, that have a variety of important roles in the stimulation of new cell growth and cell maintenance. They bind to the cell surface on receptors. Specific growth factors can cause new cell proliferation (epidermal growth factor, insulin-like growth factor, haemopoietic growth factor – see haemopoietic tissue) and the migration of cells (fibroblast growth factor) and play a role in wound healing (platelet-derived growth factor; PDGF). Some growth factors act in the embryonic stage of development; for example, nerve growth factor stimulates the growth of axons and dendrites from developing sensory and sympathetic neurons. It is thought that some growth factors are involved in the abnormal regulation of growth seen in cancer when produced in excessive amounts.
More From encyclopedia.com
Human Growth Hormone , Human growth hormone Human growth hormone (GH), also called somatotropin, is a protein that stimulates growth. GH must be secreted (released) in just… Growth , Growth Growth, as used as a term to discuss the human body, has a number of meanings. In general terms, growth is the process towards full developmen… Somatostatin , somatostatin (growth hormone inhibiting hormone; GHIH) A hormone, secreted by the hypothalamus, that inhibits the release of growth hormone from the… Signal Transduction , To survive, an organism must constantly adjust its internal state to changes in the environment. To track environmental changes, the organism must re… Oncogene , Definition In a cell with normal control regulation (non-cancerous), genes produce proteins that provide regulated cell division. Cancer is the disea… Factor Viii , Factor VIII (antihaemophilic factor) One of the blood clotting factors. Factor VIII is a soluble protein that stimulates the activation of Factor X b…
About this article
All Sources -
Updated Aug 08 2016 About encyclopedia.com content Print Topic
You Might Also Like