Adipocyte最新文献_第7页

The effect of trimethylamine N-oxide on the metabolism of visceral white adipose tissue in spontaneously hypertensive rat. 三甲胺n -氧化物对自发性高血压大鼠内脏白色脂肪组织代谢的影响。

IF 3.3 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2104783

Guo-Dong He, Xiao-Cong Liu, Xing-Hua Hou, Ying-Qing Feng

{"title":"The effect of trimethylamine N-oxide on the metabolism of visceral white adipose tissue in spontaneously hypertensive rat.","authors":"Guo-Dong He, Xiao-Cong Liu, Xing-Hua Hou, Ying-Qing Feng","doi":"10.1080/21623945.2022.2104783","DOIUrl":"https://doi.org/10.1080/21623945.2022.2104783","url":null,"abstract":"Strong links have been reported among trimethylamine N-oxide (TMAO), visceral white adipose tissue (vWAT), and cardiometabolic diseases. However, the effects of TMAO on vWAT in hypertension remained incompletely explored. The impact of a chronic 22-week-long treatment with 1 g/L TMAO on vWAT, and its transcriptional and metabolic changes in spontaneously hypertensive rats (SHRs) were evaluated by serum cytokine measurements, histological analysis, fatty acid determinations, and co-expression network analyses. TMAO increased the serum interleukin-6 levels and insulin secretion in SHRs. The adipocyte size was diminished in the SHR 1 g/L TMAO group. In addition, one kind of monounsaturated fatty acids (cis-15-tetracosenoate) and four kinds of polyunsaturated fatty acids (cis-11,14,17-eicosatrienoic acid, docosatetraenoate, docosapentaenoate n-3, and docosapentaenoate n-6) were elevated by TMAO treatment. Three co-expression modules significantly related to TMAO treatment were identified and pathway enrichment analyses indicated that phagosome, lysosome, fatty acid metabolism, valine, leucine, and isoleucine degradation and metabolic pathways were the most significantly altered biological pathways. This study shed new light on the metabolic roles of TMAO on the vWAT of SHRs. TMAO regulated the metabolic status of vWAT, including reduced lipogenesis and an improved specific fatty acid composition. The mechanisms underlying these effects likely involve phagosome and lysosome pathways.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":" ","pages":"420-433"},"PeriodicalIF":3.3,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9387326/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40633594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Bcl-2 modified adipose-derived stem cells improve the retention of fat graft. Bcl-2修饰的脂肪源性干细胞可改善脂肪移植物的保留。

IF 3.3 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2107195

Ziwei Cui, Qian Tan

{"title":"Bcl-2 modified adipose-derived stem cells improve the retention of fat graft.","authors":"Ziwei Cui, Qian Tan","doi":"10.1080/21623945.2022.2107195","DOIUrl":"https://doi.org/10.1080/21623945.2022.2107195","url":null,"abstract":"In cell-assisted lipotransfer, adipose-derived stem cells play a crucial role in enhancing fat graft retention. In vitro, human adipose-derived stem cells were modified with Bcl-2 gene. In vivo, aspirated fat was mixed with the Bcl-2-modified adipose-derived stem cells and then transplanted subcutaneously into nude mice. The retention of fat graft was evaluated. The surviving Bcl-2-modified adipose-derived stem cells were tracked after transplantation. Capillary density was quantified after transplantation. Transplantation with Bcl-2-modified adipose-derived stem cells enhanced fat graft retention by 49% and 114% at 6 weeks compared with the Fat + vector-modified adipose-derived stem cell group and Fat-only group, respectively. Transplants from the Fat + Bcl-2-modified adipose-derived stem cell group had significantly more intact adipocytes and lower levels of fat necrosis and fibrosis at 6 weeks. The survival of Bcl-2-modified adipose-derived stem cells increased by 33% at 3 weeks and 54% at 6 weeks, respectively, compared with vector-modified adipose-derived stem cells. The capillary density was 24% higher in Fat + Bcl-2-modified adipose-derived stem cell group than in Fat + vector-modified adipose-derived stem cell group or 60% higher than in Fat-only group at 3 weeks.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":" ","pages":"501-509"},"PeriodicalIF":3.3,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9387309/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40633595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cixutumumab reveals a critical role for IGF-1 in adipose and hepatic tissue remodelling during the development of diet-induced obesity. 环妥珠单抗揭示了IGF-1在饮食性肥胖发展过程中脂肪和肝组织重塑中的关键作用。

IF 3.5 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2089394

Helen Imrie, Hema Viswambharan, Natalie J Haywood, Katherine I Bridge, Nadira Y Yuldasheva, Stacey Galloway, Katie J Simmons, Richard M Cubbon, Piruthivi Sukumar, Nicole T Watt, Laeticia Lichtenstein, Judy I Wyatt, Hiromi Kudo, Robert Goldin, Baptiste Rode, Stephen B Wheatcroft, Mark T Kearney

{"title":"Cixutumumab reveals a critical role for IGF-1 in adipose and hepatic tissue remodelling during the development of diet-induced obesity.","authors":"Helen Imrie, Hema Viswambharan, Natalie J Haywood, Katherine I Bridge, Nadira Y Yuldasheva, Stacey Galloway, Katie J Simmons, Richard M Cubbon, Piruthivi Sukumar, Nicole T Watt, Laeticia Lichtenstein, Judy I Wyatt, Hiromi Kudo, Robert Goldin, Baptiste Rode, Stephen B Wheatcroft, Mark T Kearney","doi":"10.1080/21623945.2022.2089394","DOIUrl":"10.1080/21623945.2022.2089394","url":null,"abstract":"High fat diet (HFD)-induced obesity leads to perturbation in the storage function of white adipose tissue (WAT) resulting in deposition of lipids in tissues ill-equipped to deal with this challenge. The role of insulin like growth factor-1 (IGF-1) in the systemic and organ-specific responses to HFD is unclear. Using cixutumumab, a monoclonal antibody that internalizes and degrades cell surface IGF-1 receptors (IGF-1 R), leaving insulin receptor expression unchanged we aimed to establish the role of IGF-1 R in the response to a HFD. Mice treated with cixutumumab fed standard chow developed mild hyperinsulinemia with no change in WAT. When challenged by HFD mice treated with cixutumumab had reduced weight gain, reduced WAT expansion, and reduced hepatic lipid vacuole formation. In HFD-fed mice, cixutumumab led to reduced levels of genes encoding proteins important in fatty acid metabolism in WAT and liver. Cixutumumab protected against blunting of insulin-stimulated phosphorylation of Akt in liver of HFD fed mice. These data reveal an important role for IGF-1 R in the WAT and hepatic response to short-term nutrient excess. IGF-1 R inhibition during HFD leads to a lipodystrophic phenotype with a failure of WAT lipid storage and protection from HFD-induced hepatic insulin resistance.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":"11 1","pages":"366-378"},"PeriodicalIF":3.5,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9235901/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9114661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative transcriptomic analysis of rabbit interscapular brown adipose tissue whitening under physiological conditions. 生理条件下兔肩胛间褐色脂肪组织变白的比较转录组学分析。

IF 3.3 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2111053

Lei Li, Qian Wan, Qiaoyun Long, Tao Nie, Shiting Zhao, Liufeng Mao, Chuanli Cheng, Chao Zou, Kerry Loomes, Aimin Xu, Liangxue Lai, Xin Liu, Ziyuan Duan, Xiaoyan Hui, Donghai Wu

{"title":"Comparative transcriptomic analysis of rabbit interscapular brown adipose tissue whitening under physiological conditions.","authors":"Lei Li, Qian Wan, Qiaoyun Long, Tao Nie, Shiting Zhao, Liufeng Mao, Chuanli Cheng, Chao Zou, Kerry Loomes, Aimin Xu, Liangxue Lai, Xin Liu, Ziyuan Duan, Xiaoyan Hui, Donghai Wu","doi":"10.1080/21623945.2022.2111053","DOIUrl":"https://doi.org/10.1080/21623945.2022.2111053","url":null,"abstract":"Interscapular brown adipose tissue (iBAT) of both rabbits and humans exhibits a similar whitening phenomenon under physiological conditions. However, a detailed characterization of iBAT whitening in them is still lacking. Here, we chose rabbits as a model to gain a better understanding of the molecular signature changes during the whitening process of iBAT by transcriptomic analysis of rabbit iBAT at day 1, day 14, 1 month and 4 months after birth. We applied non-invasive MRI imaging to monitor the whitening process and correlated these changes with analysis of morphological, histological and molecular features. Principal component analysis (PCA) of differentially expressed genes delineated three major phases for the whitening process as Brown, Transition and Whitened BAT phases. RNA-sequencing data revealed that whitening of iBAT was an orchestrated process where multiple types of cells and tissues participated in a variety of physiological processes including neovascularization, formation of new nervous networks and immune regulation. Several key metabolic and signalling pathways contributed to whitening of iBAT, and immune cells and immune regulation appeared to play an overarching role.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":"11 1","pages":"529-549"},"PeriodicalIF":3.3,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9427046/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10625211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Salvianolic acid A promotes mitochondrial biogenesis and mitochondrial function in 3T3-L1 adipocytes through regulation of the AMPK-PGC1α signalling pathway. 丹酚酸A通过调节AMPK-PGC1α信号通路促进3T3-L1脂肪细胞的线粒体生物发生和线粒体功能。

IF 3.3 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2116790

Jialin Sun, Ping Leng, Xiao Li, Qie Guo, Jun Zhao, Yu Liang, Xiaolei Zhang, Xue Yang, Jing Li

{"title":"Salvianolic acid A promotes mitochondrial biogenesis and mitochondrial function in 3T3-L1 adipocytes through regulation of the AMPK-PGC1α signalling pathway.","authors":"Jialin Sun, Ping Leng, Xiao Li, Qie Guo, Jun Zhao, Yu Liang, Xiaolei Zhang, Xue Yang, Jing Li","doi":"10.1080/21623945.2022.2116790","DOIUrl":"https://doi.org/10.1080/21623945.2022.2116790","url":null,"abstract":"Mitochondrial dysfunction is associated with insulin resistance and type 2 diabetes (T2DM). Decreased mitochondrial abundance and function were found in white adipose tissue (WAT) of T2DM patients. Therefore, promoting WAT mitochondrial biogenesis and improving adipocyte metabolism may be strategies to prevent and reverse T2DM. Salvianolic acid A (SAA) has been found to exert anti-diabetic and lipid disorder-improving effects. However whether SAA benefits mitochondrial biogenesis and function in adipose tissue is unclear. Here, we evaluated SAA's effect on mitochondrial biogenesis and function in 3T3-L1 adipocytes and investigated its potential regulatory mechanism. Results showed that SAA treatment significantly promoted the transcription and expression of peroxisome proliferator-activated receptor γ coactivator- 1α (PGC-1α), nuclear respiratory factor 1 (NRF1) and mitochondrial transcription factor A (TFAM). Meanwhile, SAA treatment significantly promoted mitochondrial biogenesis by increasing mitochondrial DNA (mtDNA) quantity, mitochondrial mass, and expression of mitochondrial respiratory chain enzyme complexes III and complex IV. These enhancements were accompanied by enhanced phosphorylation of AMPK and ACC and were suppressed by Compound C, a specific AMPK inhibitor. Furthermore, SAA treatment improved adipocytes mitochondrial respiration and stimulated ATP generation. These findings indicate that SAA exerts a potential therapeutic capacity against adipocytes mitochondrial dysfunction in diabetes by activating the AMPK-PGC-1α pathway.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":"11 1","pages":"562-571"},"PeriodicalIF":3.3,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9450893/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10625214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Contribution of markers of adiposopathy and adipose cell size in predicting insulin resistance in women of varying age and adiposity. 脂肪病变标志物和脂肪细胞大小在预测不同年龄和肥胖女性胰岛素抵抗中的作用

IF 3.5 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2059902

Eve-Julie Tremblay, André Tchernof, Mélissa Pelletier, Nicolas Chabot, Denis R Joanisse, Pascale Mauriège

{"title":"Contribution of markers of adiposopathy and adipose cell size in predicting insulin resistance in women of varying age and adiposity.","authors":"Eve-Julie Tremblay, André Tchernof, Mélissa Pelletier, Nicolas Chabot, Denis R Joanisse, Pascale Mauriège","doi":"10.1080/21623945.2022.2059902","DOIUrl":"10.1080/21623945.2022.2059902","url":null,"abstract":"Adipose tissue (AT) dysfunctions, such as adipocyte hypertrophy, macrophage infiltration and secretory adiposopathy (low plasma adiponectin/leptin, A/L, ratio), associate with metabolic disorders. However, no study has compared the relative contribution of these markers to cardiometabolic risk in women of varying age and adiposity. Body composition, regional AT distribution, lipid-lipoprotein profile, glucose homeostasis and plasma A and L levels were determined in 67 women (age: 40-62 years; BMI: 17-41 kg/m2). Expression of macrophage infiltration marker CD68 and adipocyte size were measured from subcutaneous abdominal (SCABD) and omental (OME) fat. AT dysfunction markers correlated with most lipid-lipoprotein levels. The A/L ratio was negatively associated with fasting insulinemia and HOMA-IR, while SCABD or OME adipocyte size and SCABD CD68 expression were positively related to these variables. Combination of tertiles of largest adipocyte size and lowest A/L ratio showed the highest HOMA-IR. Multiple regression analyses including these markers and TAG levels revealed that the A/L ratio was the only predictor of fasting insulinemia and HOMA-IR. The contribution of the A/L ratio was superseded by adipose cell size in the model where the latter replaced TAGs. Finally, leptinemia was a better predictor of IR than adipocyte size and the A/L ratio in our participants sample.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":"11 1","pages":"175-189"},"PeriodicalIF":3.5,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9037496/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42361120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RNA-Seq and lipidomics reveal different adipogenic processes between bovine perirenal and intramuscular adipocytes. RNA-Seq和脂质组学揭示了牛肾周和肌内脂肪细胞之间不同的脂肪形成过程。

IF 3.3 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2106051

Xiaoyu Wang, Chengcheng Liang, Anning Li, Gong Cheng, Feng Long, Rajwali Khan, Jianfang Wang, Yu Zhang, Sen Wu, Yujuan Wang, Ju Qiu, Chugang Mei, Wucai Yang, Linsen Zan

{"title":"RNA-Seq and lipidomics reveal different adipogenic processes between bovine perirenal and intramuscular adipocytes.","authors":"Xiaoyu Wang, Chengcheng Liang, Anning Li, Gong Cheng, Feng Long, Rajwali Khan, Jianfang Wang, Yu Zhang, Sen Wu, Yujuan Wang, Ju Qiu, Chugang Mei, Wucai Yang, Linsen Zan","doi":"10.1080/21623945.2022.2106051","DOIUrl":"https://doi.org/10.1080/21623945.2022.2106051","url":null,"abstract":"Adipogenesis involves complex interactions between transcription and metabolic signalling. Exploration of the developmental characteristics of intramuscular adipocyte will provide targets for enhancing beef cattle marbling without increasing obesity. Few reports have compared bovine perirenal and intramuscular adipocyte transcriptomes using the combined analysis of transcriptomes and lipid metabolism to explore differences in adipogenic characteristics. We identified perirenal preadipocytes (PRA) and intramuscular preadipocytes (IMA) in Qinchuan cattle. We found that IMA were highly prolific in the early stages of adipogenesis, while PRA shows a stronger adipogenic ability in the terminal differentiation. Bovine perirenal and intramuscular adipocytes were detected through the combined analysis of the transcriptome and metabolome. More triglyceride was found to be upregulated in perirenal adipocytes; however, more types and amounts of unsaturated fatty acids were detected in intramuscular adipocytes, including eicosapentaenoic acid (20:5 n-3; EPA) and docosahexaenoic acid (22:6 n-3; DHA). Furthermore, differentially expressed genes in perirenal and intramuscular adipocytes were positively correlated with the eicosanoid, phosphatidylcholine (PC), phosphatidyl ethanolamine (PE), and sphingomyelin contents. Associated differential metabolic pathways included the glycerolipid and glycerophospholipid metabolisms. Our research findings provide a basis for the screening of key metabolic pathways or genes and metabolites involved in intramuscular fat production in cattle.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":" ","pages":"448-462"},"PeriodicalIF":3.3,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9367662/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40596208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Adipose tissue from subjects with type 2 diabetes exhibits impaired capillary formation in response to GROα: involvement of MMPs-2 and -9. 2型糖尿病受试者的脂肪组织对GROα的反应显示毛细血管形成受损：MMPs-2和-9的参与

IF 3.3 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2070949

Yifat Amir Levy, Theodore P Ciaraldi, Sunder R Mudaliar, Susan A Phillips, Robert R Henry

{"title":"Adipose tissue from subjects with type 2 diabetes exhibits impaired capillary formation in response to GROα: involvement of MMPs-2 and -9.","authors":"Yifat Amir Levy, Theodore P Ciaraldi, Sunder R Mudaliar, Susan A Phillips, Robert R Henry","doi":"10.1080/21623945.2022.2070949","DOIUrl":"10.1080/21623945.2022.2070949","url":null,"abstract":"Type 2 Diabetes (T2D) is associated with impaired vascularization of adipose tissue (AT) . IL8, GROα and IL15 are pro-angiogenic myokines, secreted at elevated levels by T2D myotubes. We explored the direct impact of these myokines on AT vascularization. AT explants from subjects with T2D and without diabetes (non-diabetic, ND) were treated with rIL8, rGROα and rIL15 in concentrations equal to those in conditioned media (CM) from T2D and ND myotubes, and sprout formation evaluated. Endothelial cells (EC) were isolated from T2D and ND-AT, treated with rGROα and tube formation evaluated. Finally, we investigated the involvement of MMP-2 and -9 in vascularization. ND and T2D concentrations of IL8 or IL15 caused similar stimulation of sprout formation in ND- and T2D-AT. GROα exerted a similar effect in ND-AT. When T2D-AT explants were exposed to GROα, sprout formation in response to T2D concentrations was reduced compared to ND. Exposure of EC from T2D-AT to GROα at T2D concentrations resulted in reduced tube formation. Reduced responses to GROα in T2D-AT and EC were also seen for secretion of MMP-2 and -9. The data indicate that skeletal muscle can potentially regulate AT vascularization, with T2D-AT having impairments in sensitivity to GROα, while responding normally to IL8 and IL15.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":"11 1","pages":"276-286"},"PeriodicalIF":3.3,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9116416/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44810463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioinformatics analysis to obtain critical genes regulated in subcutaneous adipose tissue after bariatric surgery. 生物信息学分析以获得减肥手术后皮下脂肪组织中调节的关键基因。

IF 3.3 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2115212

Shuai Chen, Yicheng Jiang, Xiaoyang Qi, Peng Song, Liming Tang, Hanyang Liu

{"title":"Bioinformatics analysis to obtain critical genes regulated in subcutaneous adipose tissue after bariatric surgery.","authors":"Shuai Chen, Yicheng Jiang, Xiaoyang Qi, Peng Song, Liming Tang, Hanyang Liu","doi":"10.1080/21623945.2022.2115212","DOIUrl":"https://doi.org/10.1080/21623945.2022.2115212","url":null,"abstract":"Bariatric surgery (BS) is a dependable method for managing obesity and metabolic diseases, however, the regulatory processes of lipid metabolism are still not well elucidated. Differentially expressed genes (DEGs) were analysed through three transcriptomic datasets of GSE29409, GSE59034 and GSE72158 from the GEO database regarding subcutaneous adipose tissue (SAT) after BS, and 37 DEGs were identified. The weighted gene co-expression network analysis (WGCNA), last absolute shrinkage and selection operator (LASSO) logistic regression and support vector machine-recursive feature elimination (SVM-RFE) algorithms further screened four key genes involved in the regulation of STMN2, SFRP4, APOE and MXRA5. The GSE53376 dataset was used to further confirm the differential expression of SFRP4, APOE and MXRA5 in the postoperative period. GSEA analysis reveals activation of immune-related regulatory pathways after surgery. Finally, the silencing of MXRA5 was found by experimental methods to affect the expression of PPARγ and CEBPα during the differentiation of preadipocytes, as well as to affect the formation of lipid droplets. In conclusion, SAT immunoregulation was mobilized after BS, while MXRA5 was involved in the regulation of lipid metabolism.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":"11 1","pages":"550-561"},"PeriodicalIF":3.3,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9427031/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10623124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Identification and characterization of novel abdominal and pelvic brown adipose depots in mice. 小鼠腹部和骨盆新型棕色脂肪库的鉴定和表征。

IF 3.3 4区生物学

Adipocyte Pub Date : 2022-12-01 DOI: 10.1080/21623945.2022.2133415

Ana M Mesa, Theresa I Medrano, Vijay K Sirohi, William H Walker, Richard D Johnson, Sergei G Tevosian, Angie M Adkin, Paul S Cooke

{"title":"Identification and characterization of novel abdominal and pelvic brown adipose depots in mice.","authors":"Ana M Mesa, Theresa I Medrano, Vijay K Sirohi, William H Walker, Richard D Johnson, Sergei G Tevosian, Angie M Adkin, Paul S Cooke","doi":"10.1080/21623945.2022.2133415","DOIUrl":"https://doi.org/10.1080/21623945.2022.2133415","url":null,"abstract":"Brown adipose tissue (BAT) generates heat through non-shivering thermogenesis, and increasing BAT amounts or activity could facilitate obesity treatment and provide metabolic benefits. In mice, BAT has been reported in perirenal, thoracic and cranial sites. Here, we describe new pelvic and lower abdominal BAT depots located around the urethra, internal reproductive and urinary tract organs and major lower pelvic blood vessels, as well as between adjacent muscles where the upper hind leg meets the abdominal cavity. Immunohistochemical, western blot and PCR analyses revealed that these tissues expressed BAT markers such as uncoupling protein 1 (UCP1) and CIDEA, but not white adipose markers, and β3-adrenergic stimulation increased UCP1 amounts, a classic characteristic of BAT tissue. The newly identified BAT stores contained extensive sympathetic innervation with high mitochondrial density and multilocular lipid droplets similar to interscapular BAT. BAT repositories were present and functional neonatally, and showed developmental changes between the neonatal and adult periods. In summary, several new depots showing classical BAT characteristics are reported and characterized in the lower abdominal/pelvic region of mice. These BAT stores are likely significant metabolic regulators in the mouse and some data suggests that similar BAT depots may also exist in humans.","PeriodicalId":7226,"journal":{"name":"Adipocyte","volume":"11 1","pages":"616-629"},"PeriodicalIF":3.3,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9586652/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10625700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0