期刊
MATRIX BIOLOGY
卷 22, 期 2, 页码 101-107出版社
ELSEVIER
DOI: 10.1016/S0945-053X(03)00002-7
关键词
cell signaling events; extracellular matrix
资金
- NCI NIH HHS [CA 34282] Funding Source: Medline
- NIAMS NIH HHS [AR 42044] Funding Source: Medline
- NIDCR NIH HHS [DE 13742] Funding Source: Medline
- PHS HHS [XA 23753] Funding Source: Medline
Cellular activities are primarily initiated, modulated and sustained by multifunctional molecules (cytokines and growth factors) that are secreted into the extracellular space and that signal through membrane-bound, high-affinity receptors. In contrast to the fairly well understood mechanisms that mediate the specificity of signal transduction within the confined and compartmentalized environment of the cell, significantly less is known about the mechanisms that regulate the availability of signaling molecules in the extracellular milieu. Recent findings have implicated the participation of extracellular protein macroaggregates in signaling events controlling patterning and morphogenesis. The results suggest a functional coupling between the tissue-specific organization of collagenous and elastic macroaggregates and their ability to perform instructive as well as structural functions. These observations open the way to a novel understanding in these poorly understood and critically important areas of cell and developmental biology. (C) 2003 Elsevier Science B.V./International Society of Matrix Biology. All rights reserved.
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