Plasma triacylglycerols are biomarkers of β-cell function in mice and humans
Objectives: To find plasma biomarkers prognostic of type 2 diabetes, which could also inform on pancreatic β-cell deregulations or defects in the function of insulin target tissues. Methods: We conducted a systems biology approach to characterize the plasma lipidomes of C57Bl/6J, DBA/2J, and BALB/cJ...
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Elsevier
2021
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oai:doaj.org-article:477a61cb926a45169eb295d1b2333bc12021-11-12T04:32:35ZPlasma triacylglycerols are biomarkers of β-cell function in mice and humans2212-877810.1016/j.molmet.2021.101355https://doaj.org/article/477a61cb926a45169eb295d1b2333bc12021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2212877821002027https://doaj.org/toc/2212-8778Objectives: To find plasma biomarkers prognostic of type 2 diabetes, which could also inform on pancreatic β-cell deregulations or defects in the function of insulin target tissues. Methods: We conducted a systems biology approach to characterize the plasma lipidomes of C57Bl/6J, DBA/2J, and BALB/cJ mice under different nutritional conditions, as well as their pancreatic islet and liver transcriptomes. We searched for correlations between plasma lipids and tissue gene expression modules. Results: We identified strong correlation between plasma triacylglycerols (TAGs) and islet gene modules that comprise key regulators of glucose- and lipid-regulated insulin secretion and of the insulin signaling pathway, the two top hits were Gck and Abhd6 for negative and positive correlations, respectively. Correlations were also found between sphingomyelins and islet gene modules that overlapped in part with the gene modules correlated with TAGs. In the liver, the gene module most strongly correlated with plasma TAGs was enriched in mRNAs encoding fatty acid and carnitine transporters as well as multiple enzymes of the β-oxidation pathway. In humans, plasma TAGs also correlated with the expression of several of the same key regulators of insulin secretion and the insulin signaling pathway identified in mice. This cross-species comparative analysis further led to the identification of PITPNC1 as a candidate regulator of glucose-stimulated insulin secretion. Conclusion: TAGs emerge as biomarkers of a liver-to-β-cell axis that links hepatic β-oxidation to β-cell functional mass and insulin secretion.Ana Rodríguez Sánchez-ArchidonaCéline Cruciani-GuglielmacciClara RoujeauLeonore WiggerJustine LallementJessica DenomMarko BarovicNadim KassisFlorence MehlJurgen WeitzMarius DistlerChristian KloseKai SimonsMark IbbersonMichele SolimenaChristophe MagnanBernard ThorensElsevierarticleTriacylglycerolsβ-cell functionSystems biologyType 2 diabetesPITPNC1BiomarkersInternal medicineRC31-1245ENMolecular Metabolism, Vol 54, Iss , Pp 101355- (2021) |
institution |
DOAJ |
collection |
DOAJ |
language |
EN |
topic |
Triacylglycerols β-cell function Systems biology Type 2 diabetes PITPNC1 Biomarkers Internal medicine RC31-1245 |
spellingShingle |
Triacylglycerols β-cell function Systems biology Type 2 diabetes PITPNC1 Biomarkers Internal medicine RC31-1245 Ana Rodríguez Sánchez-Archidona Céline Cruciani-Guglielmacci Clara Roujeau Leonore Wigger Justine Lallement Jessica Denom Marko Barovic Nadim Kassis Florence Mehl Jurgen Weitz Marius Distler Christian Klose Kai Simons Mark Ibberson Michele Solimena Christophe Magnan Bernard Thorens Plasma triacylglycerols are biomarkers of β-cell function in mice and humans |
description |
Objectives: To find plasma biomarkers prognostic of type 2 diabetes, which could also inform on pancreatic β-cell deregulations or defects in the function of insulin target tissues. Methods: We conducted a systems biology approach to characterize the plasma lipidomes of C57Bl/6J, DBA/2J, and BALB/cJ mice under different nutritional conditions, as well as their pancreatic islet and liver transcriptomes. We searched for correlations between plasma lipids and tissue gene expression modules. Results: We identified strong correlation between plasma triacylglycerols (TAGs) and islet gene modules that comprise key regulators of glucose- and lipid-regulated insulin secretion and of the insulin signaling pathway, the two top hits were Gck and Abhd6 for negative and positive correlations, respectively. Correlations were also found between sphingomyelins and islet gene modules that overlapped in part with the gene modules correlated with TAGs. In the liver, the gene module most strongly correlated with plasma TAGs was enriched in mRNAs encoding fatty acid and carnitine transporters as well as multiple enzymes of the β-oxidation pathway. In humans, plasma TAGs also correlated with the expression of several of the same key regulators of insulin secretion and the insulin signaling pathway identified in mice. This cross-species comparative analysis further led to the identification of PITPNC1 as a candidate regulator of glucose-stimulated insulin secretion. Conclusion: TAGs emerge as biomarkers of a liver-to-β-cell axis that links hepatic β-oxidation to β-cell functional mass and insulin secretion. |
format |
article |
author |
Ana Rodríguez Sánchez-Archidona Céline Cruciani-Guglielmacci Clara Roujeau Leonore Wigger Justine Lallement Jessica Denom Marko Barovic Nadim Kassis Florence Mehl Jurgen Weitz Marius Distler Christian Klose Kai Simons Mark Ibberson Michele Solimena Christophe Magnan Bernard Thorens |
author_facet |
Ana Rodríguez Sánchez-Archidona Céline Cruciani-Guglielmacci Clara Roujeau Leonore Wigger Justine Lallement Jessica Denom Marko Barovic Nadim Kassis Florence Mehl Jurgen Weitz Marius Distler Christian Klose Kai Simons Mark Ibberson Michele Solimena Christophe Magnan Bernard Thorens |
author_sort |
Ana Rodríguez Sánchez-Archidona |
title |
Plasma triacylglycerols are biomarkers of β-cell function in mice and humans |
title_short |
Plasma triacylglycerols are biomarkers of β-cell function in mice and humans |
title_full |
Plasma triacylglycerols are biomarkers of β-cell function in mice and humans |
title_fullStr |
Plasma triacylglycerols are biomarkers of β-cell function in mice and humans |
title_full_unstemmed |
Plasma triacylglycerols are biomarkers of β-cell function in mice and humans |
title_sort |
plasma triacylglycerols are biomarkers of β-cell function in mice and humans |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doaj.org/article/477a61cb926a45169eb295d1b2333bc1 |
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