Cited by 726Adipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and MetabolismCardiovascular Disease and Adiposity

Dead adipocytes, detected as crown-like structures, are prevalent in visceral fat depots of genetically obese mice

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Murano, I., Barbatelli, G., Parisani, V., Latini, C., Muzzonigro, G., Castellucci, M., Cinti, S.·2008·Journal of Lipid Research

Abstract

Accumulation of visceral fat is a key phenomenon in the onset of obesity-associated metabolic disorders. Macrophage infiltration induces chronic mild inflammation widely considered as a causative factor for insulin resistance and eventually diabetes. We previously showed that >90% of macrophages infiltrating the adipose tissue of obese animals and humans are arranged around dead adipocytes, forming characteristic crown-like structures (CLS). In this study we quantified CLS in visceral and subcutaneous depots from two strains of genetically obese mice, db/db and ob/ob. In both strains, CLS were prevalent in visceral compared with subcutaneous fat. Adipocyte size and CLS density exhibited a positive correlation both in visceral and in subcutaneous depots; however, the finding that adipocyte size was smallest and CLS density highest in visceral fat suggests a different susceptibility of visceral and subcutaneous adipocytes to death. Visceral fat CLS density was 3.4-fold greater in db/db than in ob/ob animals, which at the age at which our experimental strain was used are more prone to glucose metabolic disorders.

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Authors
Murano, I., Barbatelli, G., Parisani, V., Latini, C., Muzzonigro, G., Castellucci, M., & Cinti, S.
Affiliations
Marche Polytechnic University (IT)
Corresponding author
Cinti, S.
Venue
Journal of Lipid Research
Publisher
Elsevier BV
Published
2008-07
Volume
49
Issue
7
Pages
1562-1568
ISSN
0022-2275 (ISSN-L)
OpenAlex
W2138673784
Cited by
726
References
30
Citations by year
2026: 26 · 2025: 43 · 2024: 52 · 2023: 46 · 2022: 65 · 2021: 52 · 2020: 58 · 2019: 47 · 2018: 45 · 2017: 48 · 2016: 32 · 2015: 37 · 2014: 28 · 2013: 43 · 2012: 29
FWCI
18.62
Type
journal article
Language
en
Open access
Locations
  • Journal of Lipid Research (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Università Politecnica delle Marche (Università Politecnica delle Marche) (submittedVersion)
Funders
Università Politecnica delle Marche
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Disease and Adiposity
Keywords
crown-like structures, visceral fat, subcutaneous adipose tissue, adipocyte death, macrophage infiltration, obesity, db/db mice, ob/ob mice, adipocyte size, chronic inflammation, insulin resistance, adipose tissue
MeSH terms
Animals, Female, Mice, Obese, Cell Death, Adipocytes, Intra-Abdominal Fat, Mice

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