Traversing the basement membrane in vivo: a diversity of strategies.

Traversing the basement membrane in vivo: a diversity of strategies.
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DOI:
10.1083/jcb.201311112
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发表时间:
2014-02-03
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Sherwood DR
Sherwood DR
中科院分区:
其他
文献类型:
--
作者:
Kelley LC;Lohmer LL;Hagedorn EJ;Sherwood DR

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基底膜是致密、高度交联的片状细胞外基质,位于多细胞动物中所有上皮和内皮的下方。在发育、白细胞运输和转移性疾病过程中,细胞穿过基底膜分散并进入新组织。主要基于体外研究,细胞被认为利用蛋白酶来溶解和跨越这个可怕的障碍。令人惊讶的是,最近的体内研究发现了细胞用于穿过基底膜的蛋白水解之外的一系列非常多样化的细胞和组织水平策略。这些令人着迷且意想不到的机制增加了我们对细胞如何在生理和疾病环境中穿过这种基质屏障的理解。
The basement membrane is a dense, highly cross-linked, sheet-like extracellular matrix that underlies all epithelia and endothelia in multicellular animals. During development, leukocyte trafficking, and metastatic disease, cells cross the basement membrane to disperse and enter new tissues. Based largely on in vitro studies, cells have been thought to use proteases to dissolve and traverse this formidable obstacle. Surprisingly, recent in vivo studies have uncovered a remarkably diverse range of cellular- and tissue-level strategies beyond proteolysis that cells use to navigate through the basement membrane. These fascinating and unexpected mechanisms have increased our understanding of how cells cross this matrix barrier in physiological and disease settings.
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