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A soluble molecule secreted at a distance from the target cells that specifies the fates of cells. A morphogen may specify more than one cell type by forming a concentration gradient.
Farlex Partner Medical Dictionary © Farlex 2012
Any of various chemicals in embryonic tissue that influence the movement and organization of cells during morphogenesis by forming a concentration gradient.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
morphogen(1) Any substance (e.g., retinoic acid) that triggers growth, proliferation and differentiation of cells and tissues in a concentration-dependent fashion.
(2) Any molecule that orchestrates the development of an organism from the stage of a single cell to early embryogenesis.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.