Cited by 500Mitochondrial Function and PathologyMetabolomics and Mass Spectrometry StudiesAdvanced Proteomics Techniques and Applications

Absolute quantification of matrix metabolites reveals the dynamics of mitochondrial metabolism

Open access
Chen, Walter W., Freinkman, Elizaveta, Wang, Tim, Birsoy, Kıvanç, Sabatini, David M.·2016·Cell

Abstract

Mitochondria house metabolic pathways that impact most aspects of cellular physiology. While metabolite profiling by mass spectrometry is widely applied at the whole-cell level, it is not routinely possible to measure the concentrations of small molecules in mammalian organelles. We describe a method for the rapid and specific isolation of mitochondria and use it in tandem with a database of predicted mitochondrial metabolites ("MITObolome") to measure the matrix concentrations of more than 100 metabolites across various states of respiratory chain (RC) function. Disruption of the RC reveals extensive compartmentalization of mitochondrial metabolism and signatures unique to the inhibition of each RC complex. Pyruvate enables the proliferation of RC-deficient cells but has surprisingly limited effects on matrix contents. Interestingly, despite failing to restore matrix NADH/NAD balance, pyruvate does increase aspartate, likely through the exchange of matrix glutamate for cytosolic aspartate. We demonstrate the value of mitochondrial metabolite profiling and describe a strategy applicable to other organelles.

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Crossref · 10.1016/j.cell.2016.07.040

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  1. Linskens HF Anderson JM Anderson B Jackson JF Berkowitz GA Cline K Gibbs M Goldberg R Hirokawa T Huang AHC 2012 Cell Components Springer Berlin Heidelberg

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Authors
Chen, W. W., Freinkman, E., Wang, T., Birsoy, K., & Sabatini, D. M.
Affiliations
  • Broad Institute (US)
  • Whitehead Institute for Biomedical Research (US)
  • Rockefeller University (US)
Corresponding author
Sabatini, David M.
Venue
Cell
Publisher
Elsevier BV
Published
2016-08
Volume
166
Issue
5
Pages
1324-1337.e11
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2517861725
Cited by
500
References
50
Citations by year
2026: 52 · 2025: 52 · 2024: 73 · 2023: 52 · 2022: 56 · 2021: 59 · 2020: 46 · 2019: 37 · 2018: 38 · 2017: 29 · 2016: 6
FWCI
19.06
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-nd)
  • PMC
Funders
  • NIH (R01CA103866, R01CA129105, R37AI047389, F30 AG046047, F31 CA189437, K22 CA193660)
  • Department of Defense (W81XWH-15-1-0230, W81XWH-15-1-0337)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
Keywords
mitochondrial metabolism, mitochondrial isolation, electron transport inhibition, pyruvate, aspartic acid
MeSH terms
Electron Transport, HeLa Cells, Humans, Mitochondria, Pyruvic Acid, Metabolic Networks and Pathways, Metabolome

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