The secret forces that squeeze and pull life into shape https://www.nature.com/articles/d41586-021-00018-x
The SMMRY: https://smmry.com/https://www.nature.com/articles/d41586-021-00018-x#&SM_LENGTH=7 > Researchers have begun to define the mechanisms by which cells sense, respond > to and generate forces. > > The researchers confirmed how this was happening by looking at the proteins > that span the gaps between cells, which make contact with each other to stick > cells tightly together2. > > His group measured the forces involved by injecting oil droplets loaded with > magnetic nanoparticles into the spaces between cells. > > A protein called myosin II, a close cousin to the protein that makes muscle > cells contract, was known to flow from the middle of each cell to its edge, > back and forth, during the zipping-up process. > > Simple cell proliferation can also signal cells to arrange themselves > properly, as researchers at the University of Cambridge, UK, discovered in > embryos of the clawed frog Xenopus. > > In part, that's because of an excess of a fibrous meshwork called > extracellular matrix around the cells, and also because the cancer cells > themselves are proliferating, he says. > > Says Fuchs, researchers had assumed that differentiated skin cells, those > with fixed identities, couldn't produce mechanical forces. -- ↙↙↙ uǝlƃ - .... . -..-. . -. -.. -..-. .. ... -..-. .... . .-. . FRIAM Applied Complexity Group listserv Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com FRIAM-COMIC http://friam-comic.blogspot.com/ archives: http://friam.471366.n2.nabble.com/
