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colony stimulating factor

colony stimulating factor in Medicine

colony stimulating factor n.
A hormone produced in the cells lining the blood vessels that stimulates the bone marrow to synthesize white blood cells.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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colony stimulating factor in Science
colony stimulating factor  
Any of various glycoproteins that act to promote the production and differentiation of specific blood cell types. Colony stimulating factors circulate in the blood, acting as hormones, and are also secreted locally. An example is erythropoietin, which is produced in the kidney and regulates the formation of red blood cells from progenitor cells in the bone marrow.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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