Direct Autocrine Action of Insulin on β-Cells: Does It Make Physiological Sense?

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Direct Autocrine Action of Insulin on β-Cells: Does It Make Physiological Sense?

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Title: Direct Autocrine Action of Insulin on β-Cells: Does It Make Physiological Sense?
Author: Rhodes, Christopher J.; White, Morris F.; Leahy, John L.; Kahn, Steven E.

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Citation: Rhodes, Christopher J., Morris F. White, John L. Leahy, and Steven E. Kahn. 2013. “Direct Autocrine Action of Insulin on β-Cells: Does It Make Physiological Sense?” Diabetes 62 (7): 2157-2163. doi:10.2337/db13-0246. http://dx.doi.org/10.2337/db13-0246.
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Abstract: In recent years there has been a growing interest in the possibility of a direct autocrine effect of insulin on the pancreatic β-cell. Indeed, there have been numerous intriguing articles and several eloquent reviews written on the subject (1–3); however, the concept is still controversial. Although many in vitro experiments, a few transgenic mouse studies, and some human investigations would be supportive of the notion, there exist different insights, other studies, and circumstantial evidence that question the concept. Therefore, the idea of autocrine action of insulin remains a conundrum. Here we outline a series of thoughts, insights, and alternative interpretations of the available experimental evidence. We ask, how convincing are these, and what are the confusing issues? We agree that there is a clear contribution of certain downstream elements in the insulin signaling pathway for β-cell function and survival, but the question of whether insulin itself is actually the physiologically relevant ligand that triggers this signal transduction remains unsettled.
Published Version: doi:10.2337/db13-0246
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3712043/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:12717530
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