The extracellular matrix: not just pretty fibrils.

The extracellular matrix: not just pretty fibrils.
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DOI:
10.1126/science.1176009
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发表时间:
2009-11-27
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Hynes RO
Hynes RO
中科院分区:
其他
文献类型:
--
作者:
Hynes RO

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细胞外基质(ECM)除了提供结构支持外还有许多作用。ECM蛋白通常包含多个独立折叠的结构域,其序列和排列高度保守。这些结构域中的一些结合粘附受体,例如介导细胞-基质粘附并且还将信号传递到细胞中的整合素。ECM蛋白还结合可溶性生长因子并调节其分布、活化和呈递至细胞,并且能够以空间组织和调节的方式将复杂的多价信号整合至细胞。这些特性需要纳入ECM和ECM蛋白在发育模式、干细胞壁龛、癌症和遗传疾病等多种现象中的作用的考虑。
Extracellular matrix (ECM) has many effects beyond providing structural support. ECM proteins typically comprise multiple, independently folded domains whose sequences and arrangement are highly conserved. Some of these domains bind adhesion receptors such as integrins that mediate cell-matrix adhesion and also transduce signals into cells. ECM proteins also bind soluble growth factors and regulate their distribution, activation and presentation to cells and are capable of integrating complex, multivalent signals to cells in a spatially organized and regulated fashion. These properties need to be incorporated into considerations of the roles of ECM and ECM proteins in phenomena as diverse as developmental patterning, stem cell niches, cancer and genetic diseases.
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