Cited by 128ATP Synthase and ATPases ResearchAdenosine and Purinergic SignalingMitochondrial Function and Pathology

Extracellular ATP is generated by ATP synthase complex in adipocyte lipid rafts.

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Kim, Bong-Woo, Choo, Hyo-Jung, Lee, Joong-Won, Kim, Ji-Hyun, Ko, Young-Gyu·2004·Experimental & Molecular Medicine

Abstract

Mitochondrial biogenesis is known to accompany adipogenesis to complement ATP and acetyl-CoA required for lipogenesis. Here, we demonstrated that mitochondrial proteins such as ATP synthase alpha and beta, and cytochrome c were highly expressed during the 3T3-L1 differentiation into adipocytes. Fully-differentiated adipocytes showed a significant increase of mitochondria under electron microscopy. Analysis by immunofluorescence, cellular fractionation, and surface biotinylation demonstrated the elevated levels of ATP synthase complex found not only in the mitochondria but also on the cell surface (particularly lipid rafts) of adipocytes. High rate of ATP (more than 30 microM) synthesis from the added ADP and P(i) in the adipocyte media suggests the involvement of the surface ATP synthase complex for the extracellular ATP synthesis. In addition, this ATP synthesis was significantly inhibited in the presence of oligomycin, an ATP synthase inhibitor, and carbonyl cyanide m-chlorophenylhydrazone (CCCP), an ATP synthase uncoupler. Decrease of extracellular ATP synthesis in acidic but not in basic media further indicates that the surface ATP synthase may also be regulated by proton gradient through the plasma membrane.

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Crossref · 10.1038/emm.2004.60

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  • Mitochondrial density increases dramatically, and mitochondrial remodeling occurs during white adipocyte differentiation, suggesting that mitochondrial functions are required to support the multiple biological roles of mature white adipocytes.

    “However, mitochondrial density increases dramatically, and mitochondrial remodeling occurs during white adipocyte differentiation (156 -158), suggesting that mitochondrial functions are required to support the multiple biological roles of mature white adipocytes.”

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2 of the 31 references couldn’t be matched to a known paper.

Research works printed but not linked: 6

  1. Calvo M, Enrich C. Biochemical analysis of a caveolae- enriched plasma membrane fraction from rat liver. Electro- phoresis 2000;21:3386-95
  2. Chang SY, Park SG, Kim S, Kang CY. Interaction of the C-terminal domain of p43 and the alpha subunit of ATP synthase. Its functional implication in endothelial cell pro- liferation. J Biol Chem 2001;277:8388-94
  3. Ko YG, Lee JS, Kang YS, Ahn JH, Seo JS. TNFa-mediated apoptosis is initiated in caveolae-like domains. J Immunol 1999;162:7217-23
  4. Martinez LO, Jacquet S, Esteve JP, Rolland C, Cabezon E, Champagne E, Pineau T, Georgeaud V, Walker JE, Terce F, Collet X, Perret B, Barbaras R. Ectopic beta-chain of ATP synthase is an apolipoprotein A-I receptor in hepatic HDL endocytosis. Nature 2003;421:75-9
  5. Moser TL, Kenan DJ, Ashley, TA, Roy JA, Goodman MD, Misra UK, Cheek DJ, Pizzo SV. Endothelial cell surface F1-F0 ATP synthase is active in ATP synthesis and is inhibited by angiostatin. Proc Nat'l Acad Sci USA 2001;98: 6656-61
  6. Munro S. Lipid rafts: elusive or illusive? Cell 2003;115:377- 88

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Authors
Kim, B.-W., Choo, H.-J., Lee, J.-W., Kim, J.-H., & Ko, Y.-G.
Affiliations
Korea University (KR)
Venue
Experimental & Molecular Medicine
Published
2004-10-01
Volume
36
Issue
5
Pages
476-485
ISSN
  • 1226-3613 (ISSN-L)
  • 2092-6413
OpenAlex
W2033234176
Cited by
128
References
31
Citations by year
2026: 1 · 2024: 3 · 2023: 3 · 2022: 4 · 2021: 3 · 2020: 7 · 2018: 3 · 2017: 6 · 2016: 4 · 2015: 4 · 2014: 4 · 2013: 1 · 2012: 6
FWCI
4.03
Type
journal article
Language
en
Open access
Locations
  • Experimental & Molecular Medicine (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › ATP Synthase and ATPases Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Physiology › Adenosine and Purinergic Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
extracellular ATP, ATP synthase, adipocytes, lipid rafts, mitochondrial biogenesis, adipogenesis, 3T3-L1 cells, cytochrome c, oligomycin, CCCP, proton gradient, plasma membrane, mitochondrial protein translocation
MeSH terms
Adenosine Triphosphate, Animals, Cell Differentiation, Cell Membrane, Cells, Cultured, Humans, Mitochondria, Adipocytes, Membrane Microdomains, Mitochondrial Proton-Translocating ATPases, Mice

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