Type of Publication: | Journal article |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-0-286705 |
Author: | Tillmann, Kerstin D.; Reiterer, Veronika; Baschieri, Francesco; Hoffmann, Julia; Millarte, Valentina; Hauser, Mark A.; Mazza, Arnon; Atias, Nir; Legler, Daniel F.; Sharan, Roded; Weiss, Matthias; Farhan, Hesso |
Year of publication: | 2015 |
Published in: | Journal of Cell Science ; 128 (2015), 4. - pp. 670-682. - ISSN 0021-9533. - eISSN 1477-9137 |
URL of original publication: | http://jcs.biologists.org/content/128/4/670.abstract, Last access on Jun 1, 2015 |
DOI (citable link): | https://dx.doi.org/10.1242/jcs.157115 |
Summary: |
We currently lack a broader mechanistic understanding of the integration of the early secretory pathway with other homeostatic processes such as cell growth. Here, we explore the possibility that Sec16A, a major constituent of endoplasmic reticulum exit sites (ERES), acts as an integrator of growth factor signalling. Surprisingly, we find that Sec16A is a short-lived protein that is regulated by growth factors in a manner dependent on Egr family transcription factors. We hypothesize that Sec16A acts as a central node in a coherent feed-forward loop that detects persistent GF stimuli to increase ERES number. Consistent with this notion, Sec16A is also regulated by short-term growth factor treatment that leads to increased turnover of Sec16A at ERES. Finally, we demonstrate that Sec16A depletion reduces, while its overexpression increases proliferation. Together with our finding that growth factors regulate Sec16A levels and its dynamics on ERES, we propose this protein as an integrator linking growth factor signalling and secretion. This provides a mechanistic basis for the previously proposed link between secretion and proliferation.
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Subject (DDC): | 570 Biosciences, Biology |
Link to License: | In Copyright |
Bibliography of Konstanz: | Yes |
TILLMANN, Kerstin D., Veronika REITERER, Francesco BASCHIERI, Julia HOFFMANN, Valentina MILLARTE, Mark A. HAUSER, Arnon MAZZA, Nir ATIAS, Daniel F. LEGLER, Roded SHARAN, Matthias WEISS, Hesso FARHAN, 2015. Regulation of Sec16 levels and dynamics links proliferation and secretion. In: Journal of Cell Science. 128(4), pp. 670-682. ISSN 0021-9533. eISSN 1477-9137. Available under: doi: 10.1242/jcs.157115
@article{Tillmann2015Regul-31074, title={Regulation of Sec16 levels and dynamics links proliferation and secretion}, url={http://jcs.biologists.org/content/128/4/670.abstract}, year={2015}, doi={10.1242/jcs.157115}, number={4}, volume={128}, issn={0021-9533}, journal={Journal of Cell Science}, pages={670--682}, author={Tillmann, Kerstin D. and Reiterer, Veronika and Baschieri, Francesco and Hoffmann, Julia and Millarte, Valentina and Hauser, Mark A. and Mazza, Arnon and Atias, Nir and Legler, Daniel F. and Sharan, Roded and Weiss, Matthias and Farhan, Hesso} }
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