title: Rho-associated kinase-dependent contraction of stress fibres and the organization of focal adhesions.
abstract: Stress fibres and associated focal adhesions in cells constitute a contractile apparatus that regulates cell motility and contraction. Rho-kinase, an effector molecule of small GTPases, regulates non-muscle cell motility and contractility. Rho-kinase mediates the contraction of stress fibres in a Ca(2+)-independent manner, and is responsible for slower and more finely tuned contraction of stress fibres than that regulated by myosin light chain kinase activity in living cells. The specific inhibition of the Rho-kinase activity causes cells to not only lose their stress fibres and focal adhesions, but also to appear to lose their cytoplasmic tension. Activated Rho-kinase is also involved in the organization of newly formed stress fibres and focal adhesions in living cells.
authors.affiliation: Department of Anatomy, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-city, Tochigi 329-0498, Japan. katoichi@jichi.ac.jp
authors.forename: Kazuo
authors.initials: K
authors.lastname: Katoh
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Kano
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Noda
mesh_terms: D000818:Animals; D002465:Cell Movement / Q000502:physiology*; D022001:Focal Adhesions / Q000235:genetics / Q000378:metabolism*; D006801:Humans; D022502:Stress Fibers / Q000235:genetics / Q000378:metabolism*; D054460:rho-Associated Kinases / Q000235:genetics / Q000378:metabolism*
chemical_list: D054460:rho-Associated Kinases
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