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Formation of Kv2.1-...
Formation of Kv2.1-FAK complex as a mechanism of FAK activation, cell polarization and enhanced motility
- Article/chapterEnglish2008
Publisher, publication year, extent ...
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Wiley,2008
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LIBRIS-ID:oai:DiVA.org:uu-107862
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-107862URI
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https://doi.org/10.1002/jcp.21530DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Focal adhesion kinase (FAK) plays key roles in cell adhesion and migration. We now report that the delayed rectifier Kv2.1 potassium channel, through its LD-like motif in N-terminus, may interact with FAK and enhance phosphorylation of FAK(397) and FAK(576/577) Overlapping distribution of Kv2.1 and FAK was observed on soma and proximal dendrites of cortical neurons. FAK expression promotes a polarized membrane distribution of the Kv2.1 channel. In Kv2.1-transfected CHO cells, formation of the Kv2.1-FAK complex was stimulated by fibronectin/integrin and inhibited by the K channel blocker tetraethylammonium (TEA). FAK phosphorylation was minimized by shRNA knockdown of the Kv2.1 channel, point mutations of the N-terminus, and TEA, respectively. Cell migration morphology was altered by Kv2.1 knockdown or TEA, hindering cell migration activity. In wound healing tests in vitro and a traumatic injury animal model, Kv2.1 expression and co-localization of Kv2.1 and FAK significantly enhanced directional cell migration and wound closure. It is suggested that the Kv2.1 channel may function as a promoting signal for FAK activation and cell motility.
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Wei, Ling
(author)
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Zhou, Xin
(author)
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Lu, Zhong-Yang
(author)
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Francis, Kevin
(author)
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Hu, Xin-Yang
(author)
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Liu, Yu
(author)
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Xiong, Wen-Cheng
(author)
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Zhang, XiaoUppsala universitet,Institutionen för folkhälso- och vårdvetenskap(Swepub:uu)xiaozhan
(author)
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Banik, Naren L.
(author)
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Zheng, Shu-Sen
(author)
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Yu, Shan Ping
(author)
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Uppsala universitetInstitutionen för folkhälso- och vårdvetenskap
(creator_code:org_t)
Related titles
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In:Journal of Cellular Physiology: Wiley217:2, s. 544-5570021-95411097-4652
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Wei, Jian-Feng
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Wei, Ling
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Zhou, Xin
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Lu, Zhong-Yang
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Francis, Kevin
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Hu, Xin-Yang
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Liu, Yu
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Xiong, Wen-Cheng
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Zhang, Xiao
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Banik, Naren L.
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Zheng, Shu-Sen
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Yu, Shan Ping
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Journal of Cellu ...
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Uppsala University