1
|
Lana JP, de Oliveira MC, Silveira ALM, Yamada LTP, Costa KA, da Silva SV, de Assis-Ferreira A, Gautier EL, Dussaud S, Pinho V, Teixeira MM, Marcelin G, Clément K, Ferreira AVM. Role of IL-18 in adipose tissue remodeling and metabolic dysfunction. Int J Obes (Lond) 2024; 48:964-972. [PMID: 38459259 DOI: 10.1038/s41366-024-01507-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 02/15/2024] [Accepted: 02/26/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND/OBJECTIVES Proinflammatory cytokines are increased in obese adipose tissue, including inflammasome key masters. Conversely, IL-18 protects against obesity and metabolic dysfunction. We focused on the IL-18 effect in controlling adipose tissue remodeling and metabolism. MATERIALS/SUBJECTS AND METHODS We used C57BL/6 wild-type (WT) and interleukine-18 deficient (IL-18-/-) male mice fed a chow diet and samples from bariatric surgery patients. RESULTS IL-18-/- mice showed increased adiposity and proinflammatory cytokine levels in adipose tissue, leading to glucose intolerance. IL-18 was widely secreted by stromal vascular fraction but not adipocytes from mice's fatty tissue. Chimeric model experiments indicated that IL-18 controls adipose tissue expansion through its presence in tissues other than bone marrow. However, IL-18 maintains glucose homeostasis when present in bone marrow cells. In humans with obesity, IL-18 expression in omental tissue was not correlated with BMI or body fat mass but negatively correlated with IRS1, GLUT-4, adiponectin, and PPARy expression. Also, the IL-18RAP receptor was negatively correlated with IL-18 expression. CONCLUSIONS IL-18 signaling may control adipose tissue expansion and glucose metabolism, as its absence leads to spontaneous obesity and glucose intolerance in mice. We suggest that resistance to IL-18 signaling may be linked with worse glucose metabolism in humans with obesity.
Collapse
Affiliation(s)
- Jaqueline Pereira Lana
- Immunometabolism, Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Marina Chaves de Oliveira
- Immunometabolism, Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ana Letícia Malheiros Silveira
- Immunometabolism, Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Kátia Anunciação Costa
- Immunometabolism, Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Simone Vargas da Silva
- Department of Cellular Biology, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Agatha de Assis-Ferreira
- Department of Cellular Biology, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Vanessa Pinho
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Geneviève Marcelin
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches, Nutriomics, Research Unit, F-75013, Paris, France
- Assistance Publique Hôpitaux de Paris, APHP, Nutrition Department, Pitié-Salpêtrière Hospital, F-75013, Paris, France
| | - Karine Clément
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches, Nutriomics, Research Unit, F-75013, Paris, France
- Assistance Publique Hôpitaux de Paris, APHP, Nutrition Department, Pitié-Salpêtrière Hospital, F-75013, Paris, France
| | - Adaliene Versiani Matos Ferreira
- Immunometabolism, Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| |
Collapse
|
2
|
Alenezi SA, Khan R, Snell L, Aboeldalyl S, Amer S. The Role of NLRP3 Inflammasome in Obesity and PCOS-A Systematic Review and Meta-Analysis. Int J Mol Sci 2023; 24:10976. [PMID: 37446154 DOI: 10.3390/ijms241310976] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/14/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Inflammasomes have recently been implicated in the pathogenesis of several chronic inflammatory disorders, such as diabetes and obesity. The aim of this meta-analysis was to investigate the possible role of the NLRP3 inflammasome in obesity and polycystic ovarian syndrome (PCOS). A comprehensive search of electronic databases was conducted to identify studies investigating NLRP3 its related components (Caspase 1, ASC and IL-1β) in adipose tissue and/or blood from obese individuals compared to non-obese controls. Another search was conducted for studies investigating NLRP3 in PCOS women and animal models. The ssearched databases included Medline, EMBASE, Cochrane Library, PubMed, Clinicaltrials.gov, the EU Clinical Trials Register and the WHO International Clinical Trials Register. The quality and risk of bias for the included articles were assessed using the modified Newcastle-Ottawa scale. Data were extracted and pooled using RevMan software for the calculation of the standardized mean difference (SMD) and 95% confidence interval (CI). Twelve eligible studies were included in the obesity systematic review and nine in the PCOS review. Of the obesity studies, nine (n = 270) were included in the meta-analysis, which showed a significantly higher adipose tissue NLRP3 gene expression in obese (n = 186) versus non-obese (n = 84) participants (SMD 1.07; 95% CI, 0.27, 1.87). Pooled analysis of adipose tissue IL-1β data from four studies showed significantly higher IL-1β gene expression levels in adipose tissue from 88 obese participants versus 39 non-obese controls (SMD 0.56; 95% CI, 0.13, 0.99). Meta-analysis of adipose tissue ASC data from four studies showed a significantly higher level in obese (n = 109) versus non-obese (n = 42) individuals (SMD 0.91, 95% CI, 0.30, 1.52). Of the nine PCOS articles, three were human (n = 185) and six were animal studies utilizing PCOS rat/mouse models. All studies apart from one article consistently showed upregulated NLRP3 and its components in PCOS women and animal models. In conclusion, obesity and PCOS seem to be associated with upregulated expression of NLRP3 inflammasome components. Further research is required to validate these findings and to elucidate the role of NLRP3 in obesity and PCOS.
Collapse
Affiliation(s)
- Salih Atalah Alenezi
- Division of Translational Medical Sciences, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Derby DE22 3DT, UK
- Prince Mohammed Bin Abdulaziz Medical City, Ministry of Health, Riyadh 14214, Saudi Arabia
| | - Raheela Khan
- Division of Translational Medical Sciences, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Derby DE22 3DT, UK
| | - Lindsay Snell
- University Hospitals of Derby and Burton NHS Foundation Trust, Library & Knowledge Service, Derby DE22 3DT, UK
| | - Shaimaa Aboeldalyl
- University Hospitals of Derby and Burton NHS Foundation Trust, Obstetrics and Gynaecology, Derby DE22 3DT, UK
| | - Saad Amer
- Division of Translational Medical Sciences, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Derby DE22 3DT, UK
| |
Collapse
|
3
|
Functionally Significant Variants in Genes Associated with Abdominal Obesity: A Review. J Pers Med 2023; 13:jpm13030460. [PMID: 36983642 PMCID: PMC10056771 DOI: 10.3390/jpm13030460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/23/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023] Open
Abstract
The high prevalence of obesity and of its associated diseases is a major problem worldwide. Genetic predisposition and the influence of environmental factors contribute to the development of obesity. Changes in the structure and functional activity of genes encoding adipocytokines are involved in the predisposition to weight gain and obesity. In this review, variants in genes associated with adipocyte function are examined, as are variants in genes associated with metabolic aberrations and the accompanying disorders in visceral obesity.
Collapse
|
4
|
Li X, Zhang H, Wang Y, Li Y, Wang Y, Zhu J, Lin Y. Screening of key miRNAs related with the differentiation of subcutaneous adipocytes and the validation of miR-133a-3p functional significance in goats. Anim Biosci 2023; 36:144-155. [PMID: 35798040 PMCID: PMC9834647 DOI: 10.5713/ab.22.0121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/03/2022] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVE Adipocyte differentiation is regulated by a variety of functional genes and noncoding RNAs. However, the role of miRNAs in lipid deposition of goat white adipose tissue is still unclear. Therefore, this study revealed the miRNA expression profile in goat subcutaneous adipocytes by sRNA-seq. METHODS The miRNA expressed in goat subcutaneous preadipocytes and the mature adipocytes were sequenced by sRNA-seq. The differentially expressed miRNAs (DEm) were screened and gene ontology (GO) and Kyoto encyclopedia for genes and genomes (KEGG) analyses were performed. Gain-of-function and loss-of-function combined with oil red O staining, Bodipy staining, and quantitative reverse-transcription polymerase chain reaction (qPCR) were utilized to determine the effect of miR-133a-3p on adipocyte differentiation. RESULTS A total of 218 DEm were screened out. The target genes of these DEm were significantly enriched in GO items such as biological regulation and in KEGG terms such as FAK signaling pathway and MAPK signaling pathway. qPCR verified that the expression trend of miRNA was consistent with miRNA-seq. The gain-of-function or loss-of-function of miR-133a-3p showed that it promoted or inhibited the accumulation of lipid droplets, and CCAAT enhancer binding protein α (C/EBPα) and C/EBPβ were extremely significantly up-regulated or down-regulated respectively (p<0.01), the loss-of-function also led to a significant down-regulation of peroxisome proliferator activated receptor gamma (PPARγ) (p<0.01). CONCLUSION This study successfully identified miRNAs expression patterns in goat subcutaneous adipocytes, and functional identification indicates that miR-133a-3p is a positive regulator of the differentiation process of goat subcutaneous adipocytes. Our results lay the foundation for the molecular mechanism of lipid deposition in meat-source goats from the perspective of miRNA.
Collapse
Affiliation(s)
- Xin Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Protection and Utilization of Ministry of Education/Sichuan Province, Southwest Minzu University, Chengdu 610041,
China,College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041,
China
| | - Hao Zhang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Protection and Utilization of Ministry of Education/Sichuan Province, Southwest Minzu University, Chengdu 610041,
China,College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041,
China
| | - Yong Wang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Protection and Utilization of Ministry of Education/Sichuan Province, Southwest Minzu University, Chengdu 610041,
China,College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041,
China
| | - Yanyan Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Protection and Utilization of Ministry of Education/Sichuan Province, Southwest Minzu University, Chengdu 610041,
China,College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041,
China
| | - Youli Wang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Protection and Utilization of Ministry of Education/Sichuan Province, Southwest Minzu University, Chengdu 610041,
China,College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041,
China
| | - Jiangjiang Zhu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Protection and Utilization of Ministry of Education/Sichuan Province, Southwest Minzu University, Chengdu 610041,
China,College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041,
China
| | - Yaqiu Lin
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Protection and Utilization of Ministry of Education/Sichuan Province, Southwest Minzu University, Chengdu 610041,
China,College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041,
China,Corresponding Author: Yaqiu Lin, Tel: +86-02885522310, Fax: +86-02885522310, E-mail:
| |
Collapse
|
5
|
Li XY, Hao YF, Hao ZX, Jiang JG, Liu Q, Shen Q, Liu L, Yi YK, Shen CY. Inhibitory effect of chloroform extracts from Citrus aurantium L. var. amara Engl. on fat accumulation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 90:153634. [PMID: 34225246 DOI: 10.1016/j.phymed.2021.153634] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/07/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Excess lipid accumulation can accelerate the development of various metabolic diseases. Blossoms of Citrus aurantium L. var. amara Engl. (CAVA) have been reported to possess inhibitory capacities on lipid deposition. However, the constituents responsible for the observed bioactivity and the underlying mechanisms are still not clearly understood. PURPOSE To screen constituents from blossoms of CAVA with inhibitory effects on lipid accumulation and to explore the action mechanism. METHODS The chloroform (CHL) extracts are prepared from blossoms of CAVA by fractional extraction and are characterized using LC-MS assay. 3T3-L1 preadipocytes are induced with differentiation medium (DMI) and treated with CHL extracts. High fat diet (HFD)-induced obese mice are further established and administrated with CHL extracts for 12 weeks. Hematoxylin and eosin (HE) staining, Oil Red O staining, ELISA, RT-qPCR, western blot and 16S rRNA gene sequence methods are employed. RESULTS 14 compounds are identified in CHL extracts and trigonelline hydrochloride, nobiletin and 7-demethylsuberosin are most abundant. CHL extracts treatment significantly inhibit differentiation of 3T3-L1 cells by regulating expression of preadipocyte factor-1 (Pref-1), fatty acid synthase (FAS) and CCAAT/enhancer binding protein α (C/EBPα). CHL extracts intervention also significantly attenuate features of obesity and improved plasma biochemical profiles in HFD-fed mice. HFD-triggered hepatic steatosis and epididymal adipose tissues (EATs) hypertrophy are also reversed by CHL extracts administration through enhancing antioxidant responses and modulating lipogenesis and energy expenditure-related genes and proteins. 16S rRNA gene sequence data further show that CHL extracts enhance the diversity of gut microbiota. CHL extracts at lower concentrations reduce the ratio of Firmicutes to Bacteroidetes and the abundance of Erysipelotrichaceae. CHL extracts at higher doses markedly increase the abundance of Lachnospiraceae. CONCLUSION These findings suggest that CHL extracts probably suppress lipid accumulation through inhibiting differentiation of 3T3-L1 cells and attenuating metabolic syndromes in HFD-fed mice.
Collapse
Affiliation(s)
- Xiao-Yi Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Yun-Fang Hao
- College of Food and Bioengineering, South China University of Technology, Guangzhou 510640, China
| | - Zhan-Xi Hao
- College of Food and Bioengineering, South China University of Technology, Guangzhou 510640, China
| | - Jian-Guo Jiang
- College of Food and Bioengineering, South China University of Technology, Guangzhou 510640, China.
| | - Qiang Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Qun Shen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Li Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Yan-Kui Yi
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Chun-Yan Shen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; College of Food and Bioengineering, South China University of Technology, Guangzhou 510640, China.
| |
Collapse
|
6
|
Uncoupling Protein 2 Expression Modulates Obesity in Chronic Kidney Disease Patients. Rep Biochem Mol Biol 2021; 10:119-125. [PMID: 34277875 DOI: 10.52547/rbmb.10.1.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/08/2021] [Indexed: 11/18/2022]
Abstract
Background Obesity is a multifactorial metabolic disease resulting from behavioral and genetic factors. Obesity is linked to diabetes mellitus and hypertension, which are considered as major risk factors for chronic kidney disease (CKD); moreover, it has a direct effect on developing CKD and end stage renal disease (ESRD). Here was aimed to examine the association between uncoupling protein 2 (UCP2) gene expression and obesity in CKD patients. Methods UCP2 gene expression was analyzed by real time polymerase chain reaction (RT-PCR) in 93 participants divided into three groups. The groups included 31 non-obese CKD patients, 31 obese CKD patients, and 31 healthy, age-matched, unrelated volunteers as a control group. Results UCP2 gene expression was significantly relevant when comparing the non-obese CKD and obese CKD groups to the control group (p< 0.001). No significant association was found when the groups were compared by gender; Chi-square (X2) was 2.38 and p= 0.304. A significant negative correlation was found between UCP2 gene expression and BMI in CKD (p< 0.05). Conclusion These results indicate that UCP2 gene expression plays a significant role as a risk factor for obesity in CKD patients.
Collapse
|
7
|
de Oliveira MS, Rodrigues M, Rossoni EA, Sortica DA, Rheinheimer J, Moehlecke M, Heredia MLDC, Horvath JDC, Kops NL, Trindade MRM, Viana LV, Leitão CB, Friedman R, Crispim D, de Souza BM. -866G/A and Ins/Del polymorphisms in UCP2 gene are associated with reduced short-term weight loss in patients who underwent Roux-en-Y gastric bypass. Surg Obes Relat Dis 2021; 17:1263-1270. [PMID: 33941479 DOI: 10.1016/j.soard.2021.03.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 03/05/2021] [Accepted: 03/27/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Uncoupling protein 2 (UCP2) plays an important role in energy expenditure regulation. Previous studies have associated the common -866G/A (rs659366) and Ins/Del polymorphisms in the UCP2 gene with metabolic and obesity-related phenotypes. However, it is still unclear whether these polymorphisms influence weight loss after bariatric surgery. OBJECTIVES To investigate whether UCP2 -866G/A and Ins/Del polymorphisms are associated with weight loss outcomes after bariatric surgery. SETTING Longitudinal study in a university hospital. METHODS We retrospectively evaluated 186 patients who underwent Roux-en-Y gastric bypass (RYGB) surgery for clinical and laboratory characteristics in the preoperative period, 6, 12, and 18 months after RYGB. The -866G/A (rs659366) polymorphism was genotyped using real-time PCR, while the Ins/Del polymorphism was genotyped by direct separation of PCR products in 2.5% agarose gels. RESULTS Patients with the -866A/A genotype showed higher body mass index (BMI) after 6, 12, and 18 months of surgery and excess body weight after 6 and 12 months compared with G/G patients. They also showed lower excess weight loss (EWL%) after 6 and 12 months of surgery. Ins allele carriers (Ins/Ins + Ins/Del) had lower delta (Δ) BMI 12 months after surgery compared with Del/Del patients. Accordingly, patients carrying haplotypes with ≥2 risk alleles of these polymorphisms had higher BMI and excess weight and lower EWL% during follow-up. CONCLUSION UCP2 -866A/A genotype is associated with higher BMI and excess weight and lower EWL% during an 18-month follow-up of patients who underwent RYGB, while the Ins allele seems to be associated with lower ΔBMI 12 months after surgery. Further studies are needed to confirm the associations of the -866G/A and Ins/Del polymorphisms with weight loss after bariatric surgery.
Collapse
Affiliation(s)
- Mayara S de Oliveira
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil; Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Michelle Rodrigues
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Elis A Rossoni
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Denise A Sortica
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Jakeline Rheinheimer
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Milene Moehlecke
- Department of Endocrinology, Faculdade de Medicina, Universidade Luterana do Brasil, Canoas, Brazil
| | | | | | - Natalia L Kops
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Manoel R M Trindade
- Digestive Surgery Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Luciana V Viana
- Digestive Surgery Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Cristiane B Leitão
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil; Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Rogério Friedman
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Daisy Crispim
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil; Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Bianca M de Souza
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil; Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
| |
Collapse
|
8
|
Wilhelmsen A, Tsintzas K, Jones SW. Recent advances and future avenues in understanding the role of adipose tissue cross talk in mediating skeletal muscle mass and function with ageing. GeroScience 2021; 43:85-110. [PMID: 33528828 PMCID: PMC8050140 DOI: 10.1007/s11357-021-00322-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/01/2021] [Indexed: 12/15/2022] Open
Abstract
Sarcopenia, broadly defined as the age-related decline in skeletal muscle mass, quality, and function, is associated with chronic low-grade inflammation and an increased likelihood of adverse health outcomes. The regulation of skeletal muscle mass with ageing is complex and necessitates a delicate balance between muscle protein synthesis and degradation. The secretion and transfer of cytokines, long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), both discretely and within extracellular vesicles, have emerged as important communication channels between tissues. Some of these factors have been implicated in regulating skeletal muscle mass, function, and pathologies and may be perturbed by excessive adiposity. Indeed, adipose tissue participates in a broad spectrum of inter-organ communication and obesity promotes the accumulation of macrophages, cellular senescence, and the production and secretion of pro-inflammatory factors. Pertinently, age-related sarcopenia has been reported to be more prevalent in obesity; however, such effects are confounded by comorbidities and physical activity level. In this review, we provide evidence that adiposity may exacerbate age-related sarcopenia and outline some emerging concepts of adipose-skeletal muscle communication including the secretion and processing of novel myokines and adipokines and the role of extracellular vesicles in mediating inter-tissue cross talk via lncRNAs and miRNAs in the context of sarcopenia, ageing, and obesity. Further research using advances in proteomics, transcriptomics, and techniques to investigate extracellular vesicles, with an emphasis on translational, longitudinal human studies, is required to better understand the physiological significance of these factors, the impact of obesity upon them, and their potential as therapeutic targets in combating muscle wasting.
Collapse
Affiliation(s)
- Andrew Wilhelmsen
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - Kostas Tsintzas
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, UK.
| | - Simon W Jones
- Institute of Inflammation and Ageing, MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, Queen Elizabeth Hospital, The University of Birmingham, Birmingham, UK
| |
Collapse
|