scholarly journals Adipose tissue macrophages: their role in adipose tissue remodeling

2010 ◽  
Vol 88 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Takayoshi Suganami ◽  
Yoshihiro Ogawa
Keyword(s):  
Adipose Tissue ◽  
Tissue Remodeling ◽  
Adipose Tissue Macrophages ◽  
Adipose Tissue Remodeling

scholarly journals Adipose Tissue Remodeling in Children: The Link between Collagen Deposition and Age-Related Adipocyte Growth

2012 ◽  
Vol 97 (4) ◽  
pp. 1320-1327 ◽  
Author(s):  
Charmaine S. Tam ◽  
Joan Tordjman ◽  
Adeline Divoux ◽  
Louise A. Baur ◽  
Karine Clément
Keyword(s):  
Adipose Tissue ◽  
Tissue Remodeling ◽  
Collagen Deposition ◽  
Age Related ◽  
Adipose Tissue Remodeling

scholarly journals Evidence for the Regulatory Role of Lipocalin 2 in High-Fat Diet-Induced Adipose Tissue Remodeling in Male Mice

Endocrinology ◽  
2013 ◽  
Vol 154 (10) ◽  
pp. 3525-3538 ◽  
Author(s):  
Hong Guo ◽  
Merlijn Bazuine ◽  
Daozhong Jin ◽  
Merry M. Huang ◽  
Samuel W. Cushman ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
High Fat Diet ◽  
Adipocyte Differentiation ◽  
Tissue Remodeling ◽  
Peroxisome Proliferator ◽  
Lipocalin 2 ◽  
Peroxisome Proliferator Activated Receptor ◽  
Adipose Tissue Remodeling ◽  
Fat Depot

Lipocalin 2 (Lcn2) has previously been characterized as an adipokine/cytokine playing a role in glucose and lipid homeostasis. In this study, we investigate the role of Lcn2 in adipose tissue remodeling during high-fat diet (HFD)-induced obesity. We find that Lcn2 protein is highly abundant selectively in inguinal adipose tissue. During 16 weeks of HFD feeding, the inguinal fat depot expanded continuously, whereas the expansion of the epididymal fat depot was reduced in both wild-type (WT) and Lcn2−/− mice. Interestingly, the depot-specific effect of HFD on fat mass was exacerbated and appeared more pronounced and faster in Lcn2−/− mice than in WT mice. In Lcn2−/− mice, adipocyte hypertrophy in both inguinal and epididymal adipose tissue was more profoundly induced by age and HFD when compared with WT mice. The expression of peroxisome proliferator-activated receptor-γ protein was significantly down-regulated, whereas the gene expression of extracellular matrix proteins was up-regulated selectively in epididymal adipocytes of Lcn2−/− mice. Consistent with these observations, collagen deposition was selectively higher in the epididymal, but not in the inguinal adipose depot of Lcn2−/− mice. Administration of the peroxisome proliferator-activated receptor-γ agonist rosiglitazone (Rosi) restored adipogenic gene expression. However, Lcn2 deficiency did not alter the responsiveness of adipose tissue to Rosi effects on the extracellular matrix expression. Rosi treatment led to the further enlargement of adipocytes with improved metabolic activity in Lcn2−/− mice, which may be associated with a more pronounced effect of Rosi treatment in reducing TGF-β in Lcn2−/− adipose tissue. Consistent with these in vivo observations, Lcn2 deficiency reduces the adipocyte differentiation capacity of stromal-vascular cells isolated from HFD-fed mice in these cells. Herein Rosi treatment was again able to stimulate adipocyte differentiation to a similar extent in WT and Lcn2−/− inguinal and epididymal stromal-vascular cells. Thus, combined, our data indicate that Lcn2 has a depot-specific role in HFD-induced adipose tissue remodeling.

scholarly journals FXR Regulates Adipose Tissue Remodeling during Obesity

2021 ◽  
Vol 35 (S1) ◽  
Author(s):  
Weinan Zhou ◽  
Oludemilade Akinrotimi ◽  
Neal Dadlani ◽  
Sayeepriyadarshini Anakk
Keyword(s):  
Adipose Tissue ◽  
Tissue Remodeling ◽  
Adipose Tissue Remodeling

scholarly journals Identification of an Adipogenic Niche for Adipose Tissue Remodeling and Restoration

2013 ◽  
Vol 18 (3) ◽  
pp. 355-367 ◽  
Author(s):  
Yun-Hee Lee ◽  
Anelia P. Petkova ◽  
James G. Granneman
Keyword(s):  
Adipose Tissue ◽  
Tissue Remodeling ◽  
Adipose Tissue Remodeling

scholarly journals Macrophage infiltration into adipose tissue may promote angiogenesis for adipose tissue remodeling in obesity

2008 ◽  
Vol 295 (2) ◽  
pp. E313-E322 ◽  
Author(s):  
Can Pang ◽  
Zhanguo Gao ◽  
Jun Yin ◽  
Jin Zhang ◽  
Weiping Jia ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Adipose Tissue ◽  
Tube Formation ◽  
Macrophage Infiltration ◽  
Platelet Derived Growth Factor ◽  
Angiogenic Factor ◽  
Vascular Density ◽  
Adipose Tissue Macrophages ◽  
Adipose Tissue Remodeling

The biological role of macrophage infiltration into adipose tissue in obesity remains to be fully understood. We hypothesize that macrophages may act to stimulate angiogenesis in the adipose tissue. This possibility was examined by determining macrophage expression of angiogenic factor PDGF (platelet-derived growth factor) and regulation of tube formation of endothelial cells by PDGF. The data suggest that endothelial cell density was reduced in the adipose tissue of ob/ob mice. Expression of endothelial marker CD31 was decreased in protein and mRNA. The reduction was associated with an increase in macrophage infiltration. In the obese mice, PDGF concentration was elevated in the plasma, and its mRNA expression was increased in adipose tissue. Macrophages were found to be a major source of PDGF in adipose tissue, as deletion of macrophages led to a significant reduction in PDGF mRNA. In cell culture, PDGF expression was induced by hypoxia, and tube formation of endothelial cells was induced by PDGF. The PDGF activity was dependent on S6K, as inhibition of S6K in endothelial cells led to inhibition of the PDGF activity. We conclude that, in response to the reduced vascular density, macrophages may express PDGF in adipose tissue to facilitate capillary formation in obesity. Although the PDGF level is elevated in adipose tissue, its activity in angiogenesis is dependent on the availability of sufficient endothelial cells. The study suggests a new function of macrophages in the adipose tissue in obesity.

scholarly journals Oral Ang-(1-7) treatment improves white adipose tissue remodeling and hypertension in rats with metabolic syndrome

Nutrition: X ◽  
2019 ◽  
Vol 1 ◽  
pp. 100004 ◽  
Author(s):  
Maria Andréa Barbosa ◽  
Graziele Galdino de Sousa ◽  
Uberdan Guilherme Mendes de Castro ◽  
Cláudia Martins Carneiro ◽  
Vivian Paulino Figueiredo ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Adipose Tissue ◽  
White Adipose Tissue ◽  
Tissue Remodeling ◽  
Adipose Tissue Remodeling
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