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We show that nonmuscle MIIB (myosin-IIB) is  unpolarized  in  cells  on  soft  matrix  in  2D  and  also within  soft  3D  collagen,  with  rearward  polarization  of MIIB emerging only as cells migrate from soft to stiff matrix. Durotaxis is the tendency of cells to crawl from soft to stiff matrix, and durotaxis of primary mesenchymal stem cells (MSCs)  proved  more  sensitive  to  MIIB  than  to  the  more abundant  and  persistently  unpolarized  nonmuscle  MIIA¡£

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ÕæÇ¿±ØÊ¤: ½ð±Ò+1 2013-12-05 13:57:45
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