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growth factor

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.

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"growth factor." A Dictionary of Biology. . Encyclopedia.com. 22 Nov. 2017 <http://www.encyclopedia.com>.

"growth factor." A Dictionary of Biology. . Encyclopedia.com. (November 22, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/growth-factor

"growth factor." A Dictionary of Biology. . Retrieved November 22, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/growth-factor

growth factor

growth factor (grohth) n. a polypeptide that is produced by cells and stimulates them to proliferate. Some are involved in the abnormal regulation of growth seen in cancer.

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"growth factor." A Dictionary of Nursing. . Encyclopedia.com. 22 Nov. 2017 <http://www.encyclopedia.com>.

"growth factor." A Dictionary of Nursing. . Encyclopedia.com. (November 22, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/growth-factor

"growth factor." A Dictionary of Nursing. . Retrieved November 22, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/growth-factor