Proteomics of the Rat Myocardium during Development of Type 2 Diabetes Mellitus Reveals Progressive Alterations in Major Metabolic Pathways

Journal of Proteome Research
Anders Valdemar EdhagerJohan Palmfeldt

Abstract

Congestive heart failure and poor clinical outcome after myocardial infarction are known complications in patients with type-2 diabetes mellitus (T2DM). Protein alterations may be involved in the mechanisms underlying these disarrays in the diabetic heart. Here we map proteins involved in intracellular metabolic pathways in the Zucker diabetic fatty rat heart as T2DM develops using MS based proteomics. The prediabetic state only induced minor pathway changes, whereas onset and late T2DM caused pronounced perturbations. Two actin-associated proteins, ARPC2 and TPM3, were up-regulated at the prediabetic state indicating increased actin dynamics. All differentially regulated proteins involved in fatty acid metabolism, both peroxisomal and mitochondrial, were up-regulated at late T2DM, whereas enzymes of branched chain amino acid degradation were all down-regulated. At both onset and late T2DM, two members of the serine protease inhibitor superfamily, SERPINA3K and SERPINA3L, were down-regulated. Furthermore, we found alterations in proteins involved in clearance of advanced glycation end-products and lipotoxicity, DCXR and CBR1, at both onset and late T2DM. These proteins deserve elucidation with regard to their role in T2DM patho...Continue Reading

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Citations

Feb 13, 2020·Future Medicinal Chemistry·Xin Wu, Tonghui Huang
Jul 6, 2019·Frontiers in Physiology·Danbo LuJunbo Ge
Jun 21, 2019·JCI Insight·Paul PercoUNKNOWN Nephrotic Syndrome Study Network (NEPTUNE)
Jun 3, 2021·International Journal of Molecular Sciences·Nicolas ClementyDominique Babuty
Aug 24, 2021·Frontiers in Physiology·Akram Tayanloo-BeikBagher Larijani

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