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Tissue topography steers migrating Drosophila border cells
Science ( IF 41.845 ) Pub Date : 2020-11-20 , DOI: 10.1126/science.aaz4741
Wei Dai, Xiaoran Guo, Yuansheng Cao, James A. Mondo, Joseph P. Campanale, Brandon J. Montell, Haley Burrous, Sebastian Streichan, Nir Gov, Wouter-Jan Rappel, Denise J. Montell

Moving cells can sense and respond to physical features of the microenvironment; however, in vivo, the significance of tissue topography is mostly unknown. Here, we used Drosophila border cells, an established model for in vivo cell migration, to study how chemical and physical information influences path selection. Although chemical cues were thought to be sufficient, live imaging, genetics, modeling, and simulations show that microtopography is also important. Chemoattractants promote predominantly posterior movement, whereas tissue architecture presents orthogonal information, a path of least resistance concentrated near the center of the egg chamber. E-cadherin supplies a permissive haptotactic cue. Our results provide insight into how cells integrate and prioritize topographical, adhesive, and chemoattractant cues to choose one path among many.

更新日期:2020-11-21
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