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Serglycin Is Involv...
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Doncheva, Atanaska, IUniv Oslo, Fac Med, Inst Basic Med Sci, Dept Nutr, Box 1046, N-0317 Oslo, Norway.
(author)
Serglycin Is Involved in Adipose Tissue Inflammation in Obesity
- Article/chapterEnglish2022
Publisher, publication year, extent ...
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2022-01-01
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The American Association of Immunologists,2022
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-463643
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-463643URI
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https://doi.org/10.4049/jimmunol.2100231DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Chronic local inflammation of adipose tissue is an important feature of obesity. Serglycin is a proteoglycan highly expressed by various immune cell types known to infiltrate adipose tissue under obese conditions. To investigate if serglycin expression has an impact on diet-induced adipose tissue inflammation, we subjected Srgn(+/+) and Srgn(-/-) mice (C57BL/6J genetic background) to an 8-wk high-fat and high-sucrose diet. The total body weight was the same in Srgn(+/+) and Srgn(-/-) mice after diet treatment. Expression of white adipose tissue genes linked to inflammatory pathways were lower in Srgn(-/)- mice. We also noted reduced total macrophage abundance, a reduced proportion of proinflammatory M1 macrophages, and reduced formation of crown-like structures in adipose tissue of Srgn(-/-) compared with Srgn(+/+) mice. Further, Srgn(-/-) mice had more medium-sized adipocytes and fewer large adipocytes. Differentiation of preadipocytes into adipocytes (3T3-L1) was accompanied by reduced Srgn mRNA expression. In line with this, analysis of single-cell RNA sequencing data from mouse and human adipose tissue supports that Srgn mRNA is predominantly expressed by various immune cells, with low expression in adipocytes. Srgn mRNA expression was higher in obese compared with lean humans and mice, accompanied by an increased expression of immune cell gene markers. SRGN and inflammatory marker mRNA expression was reduced upon substantial weight loss in patients after bariatric surgery. Taken together, this study introduces a role for serglycin in the regulation of obesity-induced adipose inflammation.
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Norheim, Frode A.Univ Oslo, Fac Med, Inst Basic Med Sci, Dept Nutr, Box 1046, N-0317 Oslo, Norway.
(author)
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Hjorth, MaritUniv Oslo, Fac Med, Inst Basic Med Sci, Dept Nutr, Box 1046, N-0317 Oslo, Norway.
(author)
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Grujic, MirjanaUppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi(Swepub:uu)mirgr704
(author)
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Paivandy, AidaUppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi(Swepub:uu)aidpa710
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Dankel, Simon N.Univ Bergen, Dept Clin Sci, Mohn Nutr Res Lab, Bergen, Norway.;Haukeland Hosp, Dept Med Biochem & Pharmacol, Hormone Lab, Bergen, Norway.
(author)
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Hertel, Jens KristofferVestfold Hosp Trust, Morbid Obes Ctr, Tonsberg, Norway.
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Valderhaug, Tone G.Akershus Univ Hosp, Dept Endocrinol, Div Med, Oslo, Norway.
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Bottcher, YvonneUniv Oslo, Inst Clin Med, Dept Clin Mol Biol, EpiGen, Oslo, Norway.;Akershus Univ Hosp, Med Div, EpiGen, Nordbyhagen, Norway.
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Ferno, JohanUniv Bergen, Dept Clin Sci, Mohn Nutr Res Lab, Bergen, Norway.;Haukeland Hosp, Dept Med Biochem & Pharmacol, Hormone Lab, Bergen, Norway.
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Mellgren, GunnarUniv Bergen, Dept Clin Sci, Mohn Nutr Res Lab, Bergen, Norway.;Haukeland Hosp, Dept Med Biochem & Pharmacol, Hormone Lab, Bergen, Norway.
(author)
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Dalen, Knut T.Univ Oslo, Fac Med, Inst Basic Med Sci, Dept Nutr, Box 1046, N-0317 Oslo, Norway.
(author)
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Pejler, GunnarUppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi(Swepub:uu)gupej227
(author)
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Kolset, Svein O.Univ Oslo, Fac Med, Inst Basic Med Sci, Dept Nutr, Box 1046, N-0317 Oslo, Norway.
(author)
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Univ Oslo, Fac Med, Inst Basic Med Sci, Dept Nutr, Box 1046, N-0317 Oslo, Norway.Institutionen för medicinsk biokemi och mikrobiologi
(creator_code:org_t)
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In:Journal of Immunology: The American Association of Immunologists208:1, s. 121-1320022-17671550-6606
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Doncheva, Atanas ...
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Norheim, Frode A ...
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Hjorth, Marit
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Grujic, Mirjana
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Paivandy, Aida
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Dankel, Simon N.
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Hertel, Jens Kri ...
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Valderhaug, Tone ...
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Bottcher, Yvonne
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Ferno, Johan
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Mellgren, Gunnar
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Dalen, Knut T.
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Pejler, Gunnar
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Kolset, Svein O.
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