Optogenetic control of cell morphogenesis on protein micropatterns
Optogenetic control of cell morphogenesis on protein micropatterns
复制标题
细胞形态发生对蛋白质微模式的光遗传学控制
DOI:
10.1101/563353
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Mullins RD
中科院分区:
文献类型:
--
作者:
Zieske K;Mullins RD
Cell morphogenesis is critical for embryonic development, tissue formation, and wound healing. Our ability to manipulate endogenous mechanisms to control cell shape, however, remains limited. Here we combined surface micropatterning of adhesion molecules with optogenetic activation of intracellular signaling pathways to control the nature and morphology of cellular protrusions. We employed geometry-dependent pre-organization of cytoskeletal structures together with acute activation of signaling pathways that control actin assembly to create a tool capable of generating membrane protrusions at defined cellular locations. Further, we find that the size of microfabricated patterns of adhesion molecules influences the molecular mechanism of cell protrusion: larger patterns enable cells to create actin-filled lamellipodia while smaller patterns promote formation of spherical blebs. Optogenetic perturbation of signaling pathways in these cells changes the size of blebs and convert them into lamellipodia. Our results demonstrate how the coordinated manipulation of adhesion geometry and cytoskeletal dynamics can be used to control membrane protrusion and cell morphogenesis.
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通讯作者:
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