Cited by 44Adipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and MetabolismLipid metabolism and biosynthesis

Loss of transcriptional repression by BCL6 confers insulin sensitivity in the setting of obesity

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Senagolage, Madhavi D., Sommars, Meredith A., Ramachandran, Krithika, Futtner, Christopher R., Omura, Yasuhiro, Allred, Amanda L., Wang, Jianing, Yang, Cynthia +5 more·2018·Cell Reports

Abstract

Accumulation of visceral adiposity is directly linked to the morbidity of obesity, while subcutaneous body fat is considered more benign. We have identified an unexpected role for B cell lymphoma 6 (BCL6), a critical regulator of immunity, in the developmental expansion of subcutaneous adipose tissue. In adipocyte-specific knockout mice (Bcl6 AKO ), we found that Bcl6 deletion results in strikingly increased inguinal, but not perigonadal, adipocyte size and tissue mass in addition to marked insulin sensitivity. Genome-wide RNA expression and DNA binding analyses revealed that BCL6 controls gene networks involved in cell growth and fatty acid biosynthesis. Using deuterium label incorporation and comprehensive adipokine and lipid profiling, we discovered that ablation of adipocyte Bcl6 enhances subcutaneous adipocyte lipogenesis, increases levels of adiponectin and fatty acid esters of hydroxy fatty acids (FAHFAs), and prevents steatosis. Thus, our studies identify BCL6 as a negative regulator of subcutaneous adipose tissue expansion and metabolic health.

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Crossref · 10.1016/j.celrep.2018.11.074

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  • Bcl6 is a transcriptional repressor that is enriched in the fed state and cooperates with PPARα to suppress the induction of fasting transcription, and Bcl6 loss has been shown to increase insulin sensitivity and repress NASH.

    “Bcl6 is a transcriptional repressor that is enriched in the fed state and cooperates with PPARα to suppress the induction of fasting transcription, and Bcl6 loss has been shown to increase insulin sensitivity and repress NASH36-38.”

    From Positive selection of somatically mutated clones identifies adaptive pathways in metabolic liver disease (2023) · cites this paper as [36]

    The Introduction identifies BCL6 as a transcriptional repressor, and the Results section on adipocyte BCL6 deficiency reports improved liver insulin sensitivity and reduced hepatic steatosis and inflammatory markers in Bcl6AKO mice. The copy does not establish that BCL6 is enriched in the fed state or cooperates with PPARα to suppress fasting transcription. It also does not report that BCL6 loss represses NASH specifically; reduced steatosis and inflammatory markers do not establish that broader claim. (LLM, conf=0.88)

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Authors
Senagolage, M. D., Sommars, M. A., Ramachandran, K., Futtner, C. R., Omura, Y., Allred, A. L., Wang, J., Yang, C., Procissi, D., Evans, R. M., Han, X., Bederman, I. R., & Barish, G. D.
Affiliations
  • Northwestern University (US)
  • The University of Texas at San Antonio Health Science Center (US)
  • Salk Institute for Biological Studies (US)
  • Case Western Reserve University (US)
Corresponding author
Barish, Grant D.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2018-12
Volume
25
Issue
12
Pages
3283-3298.e6
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2904270746
Cited by
44
References
75
Citations by year
2026: 2 · 2025: 7 · 2024: 10 · 2023: 3 · 2022: 5 · 2021: 6 · 2020: 8 · 2019: 2 · 2018: 1
FWCI
3.32
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (acceptedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • NCI (P30-CA060553)
  • HHMI
  • NIH (DK057978, HL105278, R01DK108987, P30DK020595, K08HL092298)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
Keywords
BCL6, transcriptional repression, insulin sensitivity, obesity, subcutaneous adipose tissue, adipocyte size, fatty acid esters of hydroxy fatty acids, adiponectin, steatosis, fatty acid synthesis, adipose tissue expansion
MeSH terms
Animals, Adipose Tissue, Brown, Cell Differentiation, DNA, Fatty Liver, Fetus, Gene Expression Regulation, Humans, Inflammation, Insulin, Insulin Resistance, Lipids, Male, Obesity, Protein Binding, Transcription, Genetic, Signal Transduction, Adipocytes, Mice, Knockout, 3T3-L1 Cells, Subcutaneous Fat, Adiposity, Lipogenesis, Mice, Proto-Oncogene Proteins c-bcl-6, Adiponectin, Diet, High-Fat

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