| extracellular matrix |
(ecm; ECM) Any material produced by cells and secreted into the surrounding medium, but usually applied to the non-cellular portion of animal tissues. The ecm of connective tissue is particularly extensive and the properties of the ecm determine the properties of the tissue. In broad terms there are three major components: fibrous elements (particularly collagen, elastin, or reticulin), link proteins (eg. fibronectin, laminin), and space-filling molecules (usually glycosaminoglycans). ...
출처: worms.zoology.wisc.edu/urchins/SUglossary.html
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