Cited by 1,191Extracellular vesicles in diseaseAdipokines, Inflammation, and Metabolic DiseasesMicroRNA in disease regulation

The DOI matches its Crossref record; 64 of the 65 references it cites were found in a registry or an index.

Adipose Tissue Macrophage-Derived Exosomal miRNAs Can Modulate In Vivo and In Vitro Insulin Sensitivity

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Abstract

MiRNAs are regulatory molecules that can be packaged into exosomes and secreted from cells. Here, we show that adipose tissue macrophages (ATMs) in obese mice secrete miRNA-containing exosomes (Exos), which cause glucose intolerance and insulin resistance when administered to lean mice. Conversely, ATM Exos obtained from lean mice improve glucose tolerance and insulin sensitivity when administered to obese recipients. miR-155 is one of the miRNAs overexpressed in obese ATM Exos, and earlier studies have shown that PPARγ is a miR-155 target. Our results show that miR-155KO animals are insulin sensitive and glucose tolerant compared to controls. Furthermore, transplantation of WT bone marrow into miR-155KO mice mitigated this phenotype. Taken together, these studies show that ATMs secrete exosomes containing miRNA cargo. These miRNAs can be transferred to insulin target cell types through mechanisms of paracrine or endocrine regulation with robust effects on cellular insulin action, in vivo insulin sensitivity, and overall glucose homeostasis.

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Crossref · 10.1016/j.cell.2017.08.035

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Metadata

Authors
Ying, W., Riopel, M., Bandyopadhyay, G., Dong, Y., Birmingham, A., Seo, J. B., Ofrecio, J. M., Wollam, J., Hernandez-Carretero, A., Fu, W., Li, P., & Olefsky, J. M.
Affiliations
  • University of California San Diego (US)
  • Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
  • UC San Diego Health System (US)
Corresponding author
Olefsky, Jerrold M.
Venue
Cell
Publisher
Elsevier BV
Published
2017-10
Volume
171
Issue
2
Pages
372-384.e12
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2758187157
Cited by
1,191
References
65
Citations by year
2026: 79 · 2025: 126 · 2024: 148 · 2023: 137 · 2022: 161 · 2021: 194 · 2020: 142 · 2019: 114 · 2018: 80 · 2017: 6
FWCI
38.22
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Heart Association (16POST31350039)
  • National Natural Science Foundation of China (81600610)
  • UCSD/UCLA Diabetes Research Center Pilot and Feasibility (P30 DK063491)
  • UC San Diego Clinical and Translational Research Institute (UL1TR001442)
  • U.S. National Institute of Diabetes and Digestive and Kidney Diseases (DK033651, DK074868, DK063491, DK09062)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
Keywords
adipose tissue macrophages, exosomes, microRNA, miR-155, insulin resistance, insulin sensitivity, glucose tolerance, obesity, PPARγ, bone marrow transplantation, paracrine signaling, hormonal regulation, glucose homeostasis
MeSH terms
Adipose Tissue, Animals, Cells, Cultured, Glucose, Insulin Resistance, Liver, Macrophages, Male, Mice, Inbred C57BL, Signal Transduction, Adipocytes, Muscle, Skeletal, Hepatocytes, Muscle Cells, MicroRNAs, Mice

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