Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/49414
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dc.titleThe Regulation of Sprouty by Casein Kinase 1
dc.contributor.authorYIM GUO RONG DANIEL
dc.date.accessioned2014-02-28T18:02:11Z
dc.date.available2014-02-28T18:02:11Z
dc.date.issued2013-08-16
dc.identifier.citationYIM GUO RONG DANIEL (2013-08-16). The Regulation of Sprouty by Casein Kinase 1. ScholarBank@NUS Repository.
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/49414
dc.description.abstractSprouty2 is a potent negative regulator of receptor tyrosine kinase signaling, and is implicated as a tumor suppressor. SPRY2 inhibits FGF-RAS-ERK signaling by binding to GRB2 during FGFR activation, disrupting the GRB2-SOS complex that transduces signals from FGFR to RAS. SPRY2 binding to GRB2 is modulated by phosphorylation but the key regulatory kinase(s) are not known. Prior studies identified the frequent presence of CK1 phosphorylation motifs on SPRY2. I therefore tested if CK1 plays a role in SPRY2 phosphorylation and function. Loss of CK1 binding, and inhibition of CK1 activity by two structurally distinct small molecules abrogated SPRY2 inhibition of FGF-ERK signaling, leading to decreased SPRY2 interaction with GRB2. Moreover, CK1 activity and binding are necessary for SPRY2 inhibition of FGF-stimulated neurite outgrowth in PC12 cells. Consistent with its proposed role as an inhibitor of FGF signaling, find that CSNK1E transcript abundance negatively correlates with FGF1/FGF7 message in human gastric cancer samples. Modulation of CK1 activity may be therapeutically useful in the treatment of FGF/SPRY2 related diseases.
dc.language.isoen
dc.subjectGrowth factor signaling, Sprouty, Casein Kinase 1, neurite outgrowth, gastric cancer,
dc.typeThesis
dc.contributor.departmentNUS GRAD SCH FOR INTEGRATIVE SCI & ENGG
dc.contributor.supervisorDAVID MARC VIRSHUP
dc.contributor.supervisorMANSER, EDWARD J
dc.description.degreePh.D
dc.description.degreeconferredDOCTOR OF PHILOSOPHY
dc.identifier.isiutNOT_IN_WOS
Appears in Collections:Ph.D Theses (Open)

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