{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T06:37:36Z","timestamp":1779345456568,"version":"3.51.4"},"reference-count":42,"publisher":"The Company of Biologists","issue":"1","license":[{"start":{"date-parts":[[2000,1,1]],"date-time":"2000-01-01T00:00:00Z","timestamp":946684800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/www.biologists.com\/user-licence-1-1\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2000,1,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Invasion of epithelial cells by Shigella, the causative agent of bacillary dysentery, is dependent upon the formation of characteristic membrane ruffles that engulf the bacteria in a macropinocytic-like process. We show here that Cdc42 and Rac GTPases, but not Rho, are critical for actin polymerisation, whereas Rho is necessary for the recruitment of ezrin and Src at the site of entry. Remarkably, cells expressing constitutively active Src did not show ezrin recruitment at Shigella entry foci. In these cells, formation of stress fibres induced by LPA stimulation, or microinjection of activated Rho (V14Rho), was inhibited. Src-mediated tyrosyl-phosphorylation of p190RhoGAP correlated with changes in the ability of p190RhoGAP to interact with Rho, suggesting that Src regulates Rho function via p190RhoGAP. We propose that Rho activation is required for proper organisation of Shigella entry foci and for Src recruitment, and that Src tyrosine kinase activity, in turn, down-regulates the function of Rho at the site of Shigella entry. The significance of this negative regulatory loop on Rhodependent responses is discussed.<\/jats:p>","DOI":"10.1242\/jcs.113.1.71","type":"journal-article","created":{"date-parts":[[2021,4,25]],"date-time":"2021-04-25T13:31:38Z","timestamp":1619357498000},"page":"71-80","source":"Crossref","is-referenced-by-count":46,"title":["Src tyrosine kinase activity down-regulates Rho-dependent responses during Shigella entry into epithelial cells and stress fibre formation"],"prefix":"10.1242","volume":"113","author":[{"given":"Guillaume","family":"Dum\u00e9nil","sequence":"first","affiliation":[{"name":"1 Laboratory of cytokine signalling, Dept of Immunology"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philippe","family":"Sansonetti","sequence":"additional","affiliation":[{"name":"Unit\u00e9 de Pathog\u00e9nie Microbienne Mol\u00e9culaire 2 , INSERM U389, Institut Pasteur, Paris"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guy Tran Van","family":"Nhieu","sequence":"additional","affiliation":[{"name":"Unit\u00e9 de Pathog\u00e9nie Microbienne Mol\u00e9culaire 2 , INSERM U389, Institut Pasteur, Paris"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"237","published-online":{"date-parts":[[2000,1,1]]},"reference":[{"key":"2026051303133297800_JOCES_113_1_71C1","doi-asserted-by":"publisher","first-page":"367","DOI":"10.1083\/jcb.129.2.367","article-title":"Cytoskeletal rearrangements and the functional role for T-plastin during entry of Shigella flexneri into HeLa cells","volume":"129","author":"Adam","year":"1995","journal-title":"J. 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