Cited by 625Mitochondrial Function and PathologyIon Channels and ReceptorsCellular transport and secretion

Endoplasmic reticulum-mitochondrial contactology: structure and signaling functions

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Csordás, György, Weaver, David, Hajnóczky, György·2018·Trends in Cell Biology

Abstract

Interorganellar contacts are increasingly recognized as central to the control of cellular behavior. These contacts, which typically involve a small fraction of the endomembrane surface, are local communication hubs that resemble synapses. We propose the term contactology to denote the analysis of interorganellar contacts. Endoplasmic reticulum (ER) contacts with mitochondria were recognized several decades ago; major roles in ion and lipid transfer, signaling, and membrane dynamics have been established, while others continue to emerge. The functional diversity of ER-mitochondrial (ER-mito) contacts is mirrored in their structural heterogeneity, with subspecialization likely supported by multiple, different linker-forming protein structures. The nanoscale size of the contacts has made studying their structure, function, and dynamics difficult. This review focuses on the structure of the ER-mito contacts, methods for studying them, and the roles of contacts in Ca 2+ and reactive oxygen species (ROS) signaling.

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Crossref · 10.1016/j.tcb.2018.02.009

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  • MAM can allow Ca2+ fluxes from the SR to mitochondria and thereby speed up mitochondrial respiration.

    “Indeed, MAM can allow Ca2+ fluxes from the SR to mitochondria and thereby speed up mitochondrial respiration (Csordas et al., 2018).”

    From Impaired aerobic capacity and premature fatigue preceding muscle weakness in the skeletal muscle <i>Tfam-</i>knockout mouse model (2021) · cites this paper as Csordas et al., 2018

    The Ca2+ signaling section (page unavailable) says ER/SR–mitochondrial contacts enable local Ca2+ transfer into mitochondria. The paper does not state there that this transfer speeds mitochondrial respiration; its References section lists a study linking increased ER–mitochondrial coupling to respiration, without establishing the claimed Ca2+-mediated link. (LLM, conf=0.82)

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Authors
Csordás, G., Weaver, D., & Hajnóczky, G.
Affiliations
Thomas Jefferson University (US)
Corresponding author
  • Csordás, György
  • Weaver, David
  • Hajnóczky, György
Venue
Trends in Cell Biology
Publisher
Elsevier BV
Published
2018-07
Volume
28
Issue
7
Pages
523-540
ISSN
0962-8924 (ISSN-L)
OpenAlex
W2790109811
Cited by
625
References
160
Citations by year
2026: 74 · 2025: 99 · 2024: 97 · 2023: 79 · 2022: 78 · 2021: 71 · 2020: 61 · 2019: 49 · 2018: 16 · 2017: 1
FWCI
4.82
Type
journal article
Language
en
Open access
Locations
  • Trends in Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R01HL122124)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK051526)
  • National Institute of Environmental Health Sciences (R33ES025672, R21ES025672)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
Keywords
endoplasmic reticulum-mitochondria contacts, lipid transfer, ion transfer, membrane dynamics, calcium signaling, reactive oxygen species signaling
MeSH terms
Animals, Calcium, Endoplasmic Reticulum, Humans, Mitochondria, Signal Transduction, Reactive Oxygen Species

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