Cited by 310Metabolism, Diabetes, and CancerMitochondrial Function and PathologyAdipose Tissue and Metabolism

The DOI matches its Crossref record; 59 of the 59 references it cites were found in a registry or an index.

Thiazolidinediones are acute, specific inhibitors of the mitochondrial pyruvate carrier

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Abstract

Facilitated pyruvate transport across the mitochondrial inner membrane is a critical step in carbohydrate, amino acid, and lipid metabolism. We report that clinically relevant concentrations of thiazolidinediones (TZDs), a widely used class of insulin sensitizers, acutely and specifically inhibit mitochondrial pyruvate carrier (MPC) activity in a variety of cell types. Respiratory inhibition was overcome with methyl pyruvate, localizing the effect to facilitated pyruvate transport, and knockdown of either paralog, MPC1 or MPC2, decreased the EC 50 for respiratory inhibition by TZDs. Acute MPC inhibition significantly enhanced glucose uptake in human skeletal muscle myocytes after 2 h. These data ( i ) report that clinically used TZDs inhibit the MPC, ( ii ) validate that MPC1 and MPC2 are obligatory components of facilitated pyruvate transport in mammalian cells, ( iii ) indicate that the acute effect of TZDs may be related to insulin sensitization, and ( iv ) establish mitochondrial pyruvate uptake as a potential therapeutic target for diseases rooted in metabolic dysfunction.

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Metadata

Authors
Divakaruni, A. S., Wiley, S. E., Rogers, G. W., Andreyev, A. Y., Petrosyan, S., Loviscach, M., Wall, E. A., Yadava, N., Heuck, A. P., Ferrick, D. A., Henry, R. R., McDonald, W. G., Colca, J. R., Simon, M. I., Ciaraldi, T. P., & Murphy, A. N.
Affiliations
  • Departments of aPharmacology and
  • Seahorse Bioscience, North Billerica, MA 01862;
  • VA San Diego Healthcare System (US)
  • Pioneer Valley Life Sciences Institute, Springfield, MA 01107;
  • University of Massachusetts Amherst (US)
  • University of California San Diego (US)
  • Metabolic Solutions Development Company (United States) (US)
Venue
Proceedings of the National Academy of Sciences
Published
2013-03-19
Volume
110
Issue
14
Pages
5422-5427
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1981961082
Cited by
308
References
58
Citations by year
2026: 15 · 2025: 22 · 2024: 25 · 2023: 22 · 2022: 25 · 2021: 26 · 2020: 27 · 2019: 20 · 2018: 27 · 2017: 24 · 2016: 23 · 2015: 16 · 2014: 24 · 2013: 12
FWCI
11.21
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Diabetes Association
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (P01HL085577)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R42DK081298, R24DK092154)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Physiology (medical) › Adipose Tissue and Metabolism
Keywords
thiazolidinediones, mitochondrial pyruvate carrier, MPC1, MPC2, pyruvate transport, mitochondrial respiration inhibition, methyl pyruvate, glucose uptake, skeletal muscle fibers, insulin sensitization, metabolic dysfunction
MeSH terms
Solute Carrier Proteins, Acrylates, Analysis of Variance, Animals, Cell Line, Glucose, Humans, Blotting, Western, Muscle, Skeletal, Cell Respiration, Reverse Transcriptase Polymerase Chain Reaction, Mitochondrial Proteins, Membrane Transport Proteins, Anion Transport Proteins, Monocarboxylic Acid Transporters, Mitochondrial Membrane Transport Proteins, Thiazolidinediones, Cytochromes c, Mitochondrial Membranes, Mice, Rats, Membrane Potential, Mitochondrial, Metabolic Networks and Pathways

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