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MFng is dispensable for mouse pancreas development and function
Umeå University, Faculty of Medicine, Umeå Centre for Molecular Medicine (UCMM). (Edlund Helena)
Umeå University, Faculty of Medicine, Umeå Centre for Molecular Medicine (UCMM). (Edlund Helena)
Umeå University, Faculty of Medicine, Umeå Centre for Molecular Medicine (UCMM). (Edlund Helena)
2009 (English)In: Molecular and Cellular Biology, ISSN 0270-7306, E-ISSN 1098-5549, Vol. 29, no 8, 2129-2138 p.Article in journal (Refereed) Published
Abstract [en]

Notch signaling regulates pancreatic cell differentiation, and mutations of various Notch signaling components result in perturbed pancreas development. Members of the Fringe family of beta1,3-N-acetylglucosaminyltransferases, Manic Fringe (MFng), Lunatic Fringe (LFng), and Radical Fringe (RFng), modulate Notch signaling, and MFng has been suggested to regulate pancreatic endocrine cell differentiation. We have characterized the expression of the three mouse Fringe genes in the developing mouse pancreas between embryonic days 9 and 14 and show that the expression of MFng colocalized with the proendocrine transcription factor Ngn3. In contrast, the expression of LFng colocalized with the exocrine marker Ptf1a, whereas RFng was not expressed. Moreover, we show that expression of MFng is lost in Ngn3 mutant mice, providing evidence that MFng is genetically downstream of Ngn3. Gain- and loss-of-function analyses of MFng by the generation of mice that overexpress MFng in early pancreatic progenitor cells and mice with a targeted deletion of MFng provide, however, evidence that MFng is dispensable for pancreas development and function, since no pancreatic defects in these mice were observed.

Place, publisher, year, edition, pages
2009. Vol. 29, no 8, 2129-2138 p.
National Category
Medical Biotechnology (with a focus on Cell Biology (including Stem Cell Biology), Molecular Biology, Microbiology, Biochemistry or Biopharmacy)
Identifiers
URN: urn:nbn:se:umu:diva-31457DOI: 10.1128/MCB.01644-08PubMedID: 19223466OAI: oai:DiVA.org:umu-31457DiVA: diva2:293097
Available from: 2010-02-10 Created: 2010-02-10 Last updated: 2017-12-12Bibliographically approved

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Svensson, PerNorlin, StefanEdlund, Helena
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