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Cited by 244

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

Regulation of PKD by the MAPK p38δ in Insulin Secretion and Glucose Homeostasis

Open access
Sumara, Grzegorz, Formentini, Ivan, Collins, Stephan, Sumara, Izabela, Windak, Renata, Bodenmiller, Bernd, Ramracheya, Reshma, Caille, Dorothée, Jiang, Huiping, Platt, Kenneth A., Meda, Paolo, Aebersold, Rudolf, Rorsman, Patrik, Ricci, Romeo·2009·Cell

Abstract

Dysfunction and loss of insulin-producing pancreatic beta cells represent hallmarks of diabetes mellitus. Here, we show that mice lacking the mitogen-activated protein kinase (MAPK) p38delta display improved glucose tolerance due to enhanced insulin secretion from pancreatic beta cells. Deletion of p38delta results in pronounced activation of protein kinase D (PKD), the latter of which we have identified as a pivotal regulator of stimulated insulin exocytosis. p38delta catalyzes an inhibitory phosphorylation of PKD1, thereby attenuating stimulated insulin secretion. In addition, p38delta null mice are protected against high-fat-feeding-induced insulin resistance and oxidative stress-mediated beta cell failure. Inhibition of PKD1 reverses enhanced insulin secretion from p38delta-deficient islets and glucose tolerance in p38delta null mice as well as their susceptibility to oxidative stress. In conclusion, the p38delta-PKD pathway integrates regulation of the insulin secretory capacity and survival of pancreatic beta cells, pointing to a pivotal role for this pathway in the development of overt diabetes mellitus.

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Crossref · 10.1016/j.cell.2008.11.018

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Metadata

Authors
Sumara, G., Formentini, I., Collins, S., Sumara, I., Windak, R., Bodenmiller, B., Ramracheya, R., Caille, D., Jiang, H., Platt, K. A., Meda, P., Aebersold, R., Rorsman, P., & Ricci, R.
Venue
Cell
Publisher
Elsevier BV
Published
2009-01
Volume
136
Issue
2
Pages
235-248
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2140170107
Cited by
244
References
8
FWCI
22.76
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Regulation of PKD by the MAPK p38δ in Insulin Secretion and Glucose Homeostasis. https://app.cochat.ai/papers/10.1016/j.cell.2008.11.018
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Sumara, G., Formentini, I., Collins, S., Sumara, I., Windak, R., Bodenmiller, B., Ramracheya, R., Caille, D., Jiang, H., Platt, K. A., Meda, P., Aebersold, R., Rorsman, P., & Ricci, R. (2009). Regulation of PKD by the MAPK p38δ in Insulin Secretion and Glucose Homeostasis. Cell. https://doi.org/10.1016/j.cell.2008.11.018

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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