Cited by 140Pancreatic function and diabetesMitochondrial Function and PathologyMetabolism, Diabetes, and Cancer

In beta-cells, mitochondria integrate and generate metabolic signals controlling insulin secretion

Maechler, Pierre, Carobbio, Stefania, Rubi, Blanca·2006·The International Journal of Biochemistry & Cell Biology

Abstract

Pancreatic beta-cells are unique neuroendocrine cells displaying the peculiar feature of responding to nutrients, principally glucose, as primary stimulus. This requires translation of a metabolic substrate into intracellular messengers recognized by the exocytotic machinery. Central to this signal transduction mechanism, mitochondria integrate and generate metabolic signals, thereby coupling glucose recognition to insulin secretion. In response to a glucose rise, nucleotides and metabolites are generated by mitochondria and participate, together with cytosolic calcium, to the stimulation of insulin exocytosis. This review describes the mitochondrion-dependent pathways of regulated insulin secretion. In particular, importance of cataplerotic and anaplerotic processes is discussed, with special attention to the mitochondrial enzyme glutamate dehydrogenase. Mitochondrial defects, such as mutations and reactive oxygen species production, are presented in the context of beta-cell failure in the course of type 2 diabetes.

Integrity signals

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Crossref · 10.1016/j.biocel.2005.12.006

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153 of 153 references verified0 citation errors · 0 not checkable

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  • Clonal cytosolic hybrid cells harboring mitochondria derived from MIDD patients exhibit impaired calcium handling and elevated ROS under metabolic stress.

    “Consistent with this view, clonal cytosolic hybrid cells harboring mitochondria derived from MIDD patients exhibit impaired calcium handling and elevated ROS under metabolic stress (247, 248).”

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Authors
Maechler, P., Carobbio, S., & Rubi, B.
Affiliations
University of Geneva (CH)
Corresponding author
Maechler, Pierre
Venue
The International Journal of Biochemistry & Cell Biology
Publisher
Elsevier BV
Published
2006-05
Volume
38
Issue
5-6
Pages
696-709
ISSN
1357-2725 (ISSN-L)
OpenAlex
W2104595034
Cited by
140
References
153
Citations by year
2026: 4 · 2025: 4 · 2024: 2 · 2023: 1 · 2022: 4 · 2021: 6 · 2020: 5 · 2019: 5 · 2018: 3 · 2017: 6 · 2016: 9 · 2015: 4 · 2014: 10 · 2013: 3 · 2012: 12
FWCI
2.38
Type
journal article
Language
en
Open access
closed
Locations
  • The International Journal of Biochemistry & Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
pancreatic beta cells, insulin secretion, mitochondria, glucose detection, metabolic signaling, insulin exocytosis, cataplerosis, anaplerosis, glutamate dehydrogenase, intracellular calcium, reactive oxygen species, mitochondrial mutations, type 2 diabetes, beta-cell failure
MeSH terms
Insulin Secretion, Adenosine Triphosphate, Animals, Diabetes Mellitus, Type 2, Exocytosis, Glutamate Dehydrogenase, Humans, Insulin, Mitochondria, NAD, Signal Transduction, Pyruvic Acid, Electron Transport Chain Complex Proteins, Insulin-Secreting Cells

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