1
|
Elkanawati RY, Sumiwi SA, Levita J. Impact of Lipids on Insulin Resistance: Insights from Human and Animal Studies. Drug Des Devel Ther 2024; 18:3337-3360. [PMID: 39100221 PMCID: PMC11298177 DOI: 10.2147/dddt.s468147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 07/24/2024] [Indexed: 08/06/2024] Open
Abstract
Insulin resistance (IR) is a complex pathological condition central to metabolic diseases such as type 2 diabetes mellitus (T2DM), cardiovascular disease, non-alcoholic fatty liver disease, and polycystic ovary syndrome (PCOS). This review evaluates the impact of lipids on insulin resistance (IR) by analyzing findings from human and animal studies. The articles were searched on the PubMed database using two keywords: (1) "Role of Lipids AND Insulin Resistance AND Humans" and (2) "Role of Lipids AND Insulin Resistance AND Animal Models". Studies in humans revealed that elevated levels of free fatty acids (FFAs) and triglycerides (TGs) are closely associated with reduced insulin sensitivity, and interventions like metformin and omega-3 fatty acids show potential benefits. In animal models, high-fat diets disrupt insulin signaling and increase inflammation, with lipid mediators such as diacylglycerol (DAG) and ceramides playing significant roles. DAG activates protein kinase C, which eventually impairs insulin signaling, while ceramides inhibit Akt/PKB, further contributing to IR. Understanding these mechanisms is crucial for developing effective prevention and treatment strategies for IR-related diseases.
Collapse
Affiliation(s)
- Rani Yulifah Elkanawati
- Master Program in Pharmacy, Faculty of Pharmacy, Padjadjaran University, Jawa Barat, West Java, 45363, Indonesia
| | - Sri Adi Sumiwi
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Padjadjaran University, Sumedang, West Java, 45363, Indonesia
| | - Jutti Levita
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Padjadjaran University, Sumedang, West Java, 45363, Indonesia
| |
Collapse
|
2
|
Xu H, Luo Y, Li Q, Zhu H. Acupuncture influences multiple diseases by regulating gut microbiota. Front Cell Infect Microbiol 2024; 14:1371543. [PMID: 39040602 PMCID: PMC11260648 DOI: 10.3389/fcimb.2024.1371543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 06/13/2024] [Indexed: 07/24/2024] Open
Abstract
Acupuncture, an important green and side effect-free therapy in traditional Chinese medicine, is widely use both domestically and internationally. Acupuncture can interact with the gut microbiota and influence various diseases, including metabolic diseases, gastrointestinal diseases, mental disorders, nervous system diseases, and other diseases. This review presents a thorough analysis of these interactions and their impacts and examines the alterations in the gut microbiota and the potential clinical outcomes following acupuncture intervention to establish a basis for the future utilization of acupuncture in clinical treatments.
Collapse
Affiliation(s)
- Huimin Xu
- Department of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yingzhe Luo
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Qiaoqi Li
- Department of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hong Zhu
- Department of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| |
Collapse
|
3
|
Jantaravinid J, Tirawanchai N, Ampawong S, Kengkoom K, Somkasetrin A, Nakhonsri V, Aramwit P. Transcriptomic screening of novel targets of sericin in human hepatocellular carcinoma cells. Sci Rep 2024; 14:5455. [PMID: 38443583 PMCID: PMC10914811 DOI: 10.1038/s41598-024-56179-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 03/03/2024] [Indexed: 03/07/2024] Open
Abstract
Sericin, a natural protein derived from Bombyx mori, is known to ameliorate liver tissue damage; however, its molecular mechanism remains unclear. Herein, we aimed to identify the possible novel targets of sericin in hepatocytes and related cellular pathways. RNA sequencing analysis indicated that a low dose of sericin resulted in 18 differentially expressed genes (DEGs) being upregulated and 68 DEGs being downregulated, while 61 DEGs were upregulated and 265 DEGs were downregulated in response to a high dose of sericin (FDR ≤ 0.05, fold change > 1.50). Functional analysis revealed that a low dose of sericin regulated pathways associated with the complement and coagulation cascade, metallothionine, and histone demethylate (HDMs), whereas a high dose of sericin was associated with pathways involved in lipid metabolism, mitogen-activated protein kinase (MAPK) signaling and autophagy. The gene network analysis highlighted twelve genes, A2M, SERPINA5, MT2A, MT1G, MT1E, ARID5B, POU2F1, APOB, TRAF6, HSPA8, FGFR1, and OGT, as novel targets of sericin. Network analysis of transcription factor activity revealed that sericin affects NFE2L2, TFAP2C, STAT1, GATA3, CREB1 and CEBPA. Additionally, the protective effects of sericin depended on the counterregulation of APOB, POU2F1, OGT, TRAF6, and HSPA5. These findings suggest that sericin exerts hepatoprotective effects through diverse pathways at different doses, providing novel potential targets for the treatment of liver diseases.
Collapse
Affiliation(s)
- Jiraporn Jantaravinid
- Center of Excellence in Bioactive Resources for Innovative Clinical Applications, Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok, 10330, Thailand
| | - Napatara Tirawanchai
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, 2, Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand
| | - Sumate Ampawong
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, 420/6, Ratchawithi Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Kanchana Kengkoom
- Research and Academic Support Office, National Laboratory Animal Center, Mahidol University, 999, Salaya, Puttamonthon, Nakorn Pathom, 73170, Thailand
| | - Anchaleekorn Somkasetrin
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, 2, Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand
| | - Vorthunju Nakhonsri
- National Biobank of Thailand (NBT), National Science and Technology Development Agency (NSTDA), 144 Innovation Cluster 2 Building (INC) Tower A, Thailand Science Park, Khlong Nueng, Khlong Luang District, Pathum Thani, 12120, Thailand
| | - Pornanong Aramwit
- Center of Excellence in Bioactive Resources for Innovative Clinical Applications, Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok, 10330, Thailand.
- The Academy of Science, The Royal Society of Thailand, Dusit, Bangkok, 10330, Thailand.
| |
Collapse
|
4
|
Park JE, Han JS. Improving the Effect of Ferulic Acid on Inflammation and Insulin Resistance by Regulating the JNK/ERK and NF-κB Pathways in TNF-α-Treated 3T3-L1 Adipocytes. Nutrients 2024; 16:294. [PMID: 38257186 PMCID: PMC10819237 DOI: 10.3390/nu16020294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/13/2024] [Accepted: 01/17/2024] [Indexed: 01/24/2024] Open
Abstract
In this study, ferulic acid was investigated for its potential in suppressing TNF-α-treated inflammation and insulin resistance in adipocytes. Ferulic acid suppressed TNF-α, IL-6, IL-1β, and MCP-1. TNF-α increased p-JNK and ERK1/2, but treatment with ferulic acid (1, 10, and 50 μM) decreased p-JNK and ERK1/2. TNF-α induced the activation of IKK, IκBα, and NF-κB p65 compared to the control, but ferulic acid inhibited the activation of IKK, IκBα, and NF-κB p65. Following treatment with TNF-α, pIRS-1ser307 increased and pIRS-1tyr612 decreased compared to the control. Conversely, as a result of treatment with 1, 10, and 50 μM ferulic acid, pIRS-1ser307 was suppressed, and pIRS-1tyr612 was increased. Therefore, ferulic acid reduced inflammatory cytokine secretion by regulating JNK, ERK, and NF-κB and improved insulin resistance by suppressing pIRS-1ser. These findings indicate that ferulic acid can improve inflammation and insulin resistance in adipocytes.
Collapse
Affiliation(s)
| | - Ji-Sook Han
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, 2 Busandaehak-ro 63 Beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea;
| |
Collapse
|
5
|
Li J, Lu L, Liu L, Wang C, Xie Y, Li H, Tian L, Yu X. The unique role of bone marrow adipose tissue in ovariectomy-induced bone loss in mice. Endocrine 2024; 83:77-91. [PMID: 37682419 DOI: 10.1007/s12020-023-03504-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 08/20/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND Accumulation of bone marrow adipose tissue (BMAT) is always seen in osteoporosis induced by estrogen deficiency. Herein, we aimed to investigate the mechanisms and consequences of this phenomenon by establishing a mouse model of osteoporosis caused by ovariectomy (OVX)-mimicked estrogen deficiency. METHODS Micro-CT, osmium tetroxide staining, and histological analyses were performed to examine the changes in bone microstructure, BMAT and white adipose tissue (WAT) in OVX mice compared to sham mice. The osteogenesis and adipogenesis of primary bone marrow stromal cells (BMSCs) isolated from sham and OVX mice were compared in vitro. The molecular phenotypes of BMAT and WAT were determined and compared by quantitative PCR (qPCR). Bone marrow adipocyte-conditioned medium (BMA CM) was prepared from sham or OVX mice for coculture assays, and BMSCs or bone marrow monocytes/macrophages (BMMs) were isolated and subjected to osteoblast and osteoclast differentiation, respectively. Cell staining and qPCR were used to assess the effects of BMAT on bone metabolism. RESULTS OVX-induced estrogen deficiency induced reductions in both cortical and trabecular bone mass along with an expansion of BMAT volume. At the cellular level, loss of estrogen inhibited BMSC osteogenesis and promoted BMSC adipogenesis, whereas addition of estradiol exerted the opposite effects. In response to estrogen deficiency, despite the common proinflammatory molecular phenotype observed in both fat depots, BMAT, unlike WAT, unexpectedly exhibited an increase in adipocyte differentiation and lipolytic activity as well as the maintenance of insulin sensitivity. Importantly, BMAT, but not WAT, presented increased mRNA levels of both BMP receptor inhibitors (Grem1, Chrdl1) and Rankl following OVX. In addition, treatment with BMA CM, especially from OVX mice, suppressed the osteoblast differentiation of BMSCs while favoring the osteoclast differentiation of BMMs. CONCLUSION Our study illustrates that OVX-induced estrogen deficiency results in bone loss and BMAT expansion by triggering imbalance between the osteogenesis and adipogenesis of BMSCs. Furthermore, expanded BMAT, unlike typical WAT, may negatively regulate bone homeostasis through paracrine inhibition of osteoblast-mediated bone formation and promotion of osteoclast-mediated bone resorption.
Collapse
Affiliation(s)
- Jiao Li
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, 610041, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy and Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lingyun Lu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Integrated Traditional Chinese and Western medicine, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lu Liu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Cui Wang
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ying Xie
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hong Li
- Division of Infectious Diseases, State Key Laboratory of Biotherapy and Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Li Tian
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, 610041, China.
| |
Collapse
|
6
|
Sun H, Zhao J, Hu X, Zhao R, Wu M, Qiu Y, Yao F. Assessing the Association of Self-Reported Sleep Duration and Metabolic Syndrome Among Middle-Aged and Older Adults in China from the China Health and Retirement Longitudinal Survey. Metab Syndr Relat Disord 2023; 21:509-516. [PMID: 37801338 DOI: 10.1089/met.2023.0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023] Open
Abstract
Objectives: We aim to investigate the correlation between sleep and metabolic syndrome (MS) among a community population 45 years of age and older in China. Methods: A cross-sectional analysis of 9096 participants from China health and longitudinal study was carried out. MS was defined by consensus criteria. Sleep durations were assessed by self-reported questionnaire. Odds ratio (OR) and 95% confidence intervals (CIs) for MS were obtained using multivariable-adjusted regression analysis. Results: Long habitual daytime sleep had a positive influence on MS (OR = 1.50, 95% CI = 1.10-2.06). For elderly, short daytime sleep significantly increased risk of MS (OR = 2.14, 95% CI = 1.25-3.67). Females with long daytime sleep was associated with increased risk of MS (OR = 1.54, 95% CI = 1.04-2.29). Conclusions: Daytime sleep significantly increased risk of MS for middle-aged and elderly Chinese. The hazard role of daytime sleep on MS was various between age and sex groups. Results of this study needed to be verified by future longitudinal studies.
Collapse
Affiliation(s)
- Huixin Sun
- Institute of Cancer Prevention and Treatment, Harbin Medical University, Harbin, China
| | - Jing Zhao
- Department of Preventive Health, Daqing People's Hospital, Daqing, China
| | - Xinxin Hu
- Women's Health Care Department, ShenZhen Pingshan Maternal and Child Health Hospital, Shenzhen, China
| | - Rencheng Zhao
- Health Management Division, Bao'an Hospital for Chronic Disease Prevention and Treatment, Shenzhen, China
| | - Maofu Wu
- Department of Chronic Noncommunicable Diseases, Futian Hospital for Chronic Disease Prevention and Treatment, Shenzhen, China
| | - Youxia Qiu
- Hospital-Acquired Infection Control Department, Qianhai Shekou Free Trade Zone Hospital, Shenzhen, China
| | - Feifei Yao
- Clinical Public Health Center, Qianhai Shekou Free Trade Zone Hospital, Shenzhen, China
| |
Collapse
|
7
|
Mazitova AM, Márquez-Sánchez AC, Koltsova EK. Fat and inflammation: adipocyte-myeloid cell crosstalk in atherosclerosis. Front Immunol 2023; 14:1238664. [PMID: 37781401 PMCID: PMC10540690 DOI: 10.3389/fimmu.2023.1238664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/21/2023] [Indexed: 10/03/2023] Open
Abstract
Adipose tissue inflammation has been implicated in various chronic inflammatory diseases and cancer. Perivascular adipose tissue (PVAT) surrounds the aorta as an extra layer and was suggested to contribute to atherosclerosis development. PVAT regulates the function of endothelial and vascular smooth muscle cells in the aorta and represent a reservoir for various immune cells which may participate in aortic inflammation. Recent studies demonstrate that adipocytes also express various cytokine receptors and, therefore, may directly respond to inflammatory stimuli. Here we will summarize current knowledge on immune mechanisms regulating adipocyte activation and the crosstalk between myeloid cells and adipocytes in pathogenesis of atherosclerosis.
Collapse
Affiliation(s)
- Aleksandra M. Mazitova
- Cedars-Sinai Cancer, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Cardiology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Ana Cristina Márquez-Sánchez
- Cedars-Sinai Cancer, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Cardiology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Ekaterina K. Koltsova
- Cedars-Sinai Cancer, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Cardiology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| |
Collapse
|
8
|
Wang B, Du M. Increasing adipocyte number and reducing adipocyte size: the role of retinoids in adipose tissue development and metabolism. Crit Rev Food Sci Nutr 2023:1-18. [PMID: 37427553 PMCID: PMC10776826 DOI: 10.1080/10408398.2023.2227258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
The rising prevalence of obesity is a grave public health threat. In response to excessive energy intake, adipocyte hypertrophy impairs cellular function and leads to metabolic dysfunctions while de novo adipogenesis leads to healthy adipose tissue expansion. Through burning fatty acids and glucose, the thermogenic activity of brown/beige adipocytes can effectively reduce the size of adipocytes. Recent studies show that retinoids, especially retinoic acid (RA), promote adipose vascular development which in turn increases the number of adipose progenitors surrounding the vascular vessels. RA also promotes preadipocyte commitment. In addition, RA promotes white adipocyte browning and stimulates the thermogenic activity of brown/beige adipocytes. Thus, vitamin A is a promising anti-obesity micronutrient.
Collapse
Affiliation(s)
- Bo Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, PR China
| | - Min Du
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| |
Collapse
|
9
|
Lee LMY, Lin ZQ, Zheng LX, Tu YF, So YH, Zheng XH, Feng TJ, Wang XY, Wong WT, Leung YC. Lysine Deprivation Suppresses Adipogenesis in 3T3-L1 Cells: A Transcriptome Analysis. Int J Mol Sci 2023; 24:ijms24119402. [PMID: 37298352 DOI: 10.3390/ijms24119402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/21/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
Growing evidence proves that amino acid restriction can reverse obesity by reducing adipose tissue mass. Amino acids are not only the building blocks of proteins but also serve as signaling molecules in multiple biological pathways. The study of adipocytes' response to amino acid level changes is crucial. It has been reported that a low concentration of lysine suppresses lipid accumulation and transcription of several adipogenic genes in 3T3-L1 preadipocytes. However, the detailed lysine-deprivation-induced cellular transcriptomic changes and the altered pathways have yet to be fully studied. Here, using 3T3-L1 cells, we performed RNA sequencing on undifferentiated and differentiated cells, and differentiated cells under a lysine-free environment, and the data were subjected to KEGG enrichment. We found that the differentiation process of 3T3-L1 cells to adipocytes required the large-scale upregulation of metabolic pathways, mainly on the mitochondrial TCA cycle, oxidative phosphorylation, and downregulation of the lysosomal pathway. Single amino acid lysine depletion suppressed differentiation dose dependently. It disrupted the metabolism of cellular amino acids, which could be partially reflected in the changes in amino acid levels in the culture medium. It inhibited the mitochondria respiratory chain and upregulated the lysosomal pathway, which are essential for adipocyte differentiation. We also noticed that cellular interleukin 6 (IL6) expression and medium IL6 level were dramatically increased, which was one of the targets for suppressing adipogenesis induced by lysine depletion. Moreover, we showed that the depletion of some essential amino acids such as methionine and cystine could induce similar phenomena. This suggests that individual amino acid deprivation may share some common pathways. This descriptive study dissects the pathways for adipogenesis and how the cellular transcriptome was altered under lysine depletion.
Collapse
Affiliation(s)
- Leo Man-Yuen Lee
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Lo Ka Chung Research Centre for Natural Anti-Cancer Drug Development and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Zhi-Qiang Lin
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Lu-Xi Zheng
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Yi-Fan Tu
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Lo Ka Chung Research Centre for Natural Anti-Cancer Drug Development and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Department of Obstetrics and Gynecology, The Chinese University of Hong Kong, New Territory, Hong Kong, China
| | - Yik-Hing So
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Lo Ka Chung Research Centre for Natural Anti-Cancer Drug Development and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Xiu-Hua Zheng
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Tie-Jun Feng
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Xi-Yue Wang
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen 518000, China
| | - Wai-Ting Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Yun-Chung Leung
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Lo Ka Chung Research Centre for Natural Anti-Cancer Drug Development and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| |
Collapse
|
10
|
Majeed Y, Madani AY, Altamimi AI, Courjaret R, Vakayil M, Fountain SJ, Machaca K, Mazloum NA. STAT1- and NFAT-independent amplification of purinoceptor function integrates cellular senescence with interleukin-6 production in preadipocytes. Br J Pharmacol 2023; 180:609-627. [PMID: 36321760 DOI: 10.1111/bph.15978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/03/2022] [Accepted: 10/11/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND AND PURPOSE Senescent preadipocytes promote adipose tissue dysfunction by secreting pro-inflammatory factors, although little is known about the mechanisms regulating their production. We investigated if up-regulated purinoceptor function sensitizes senescent preadipocytes to cognate agonists and how such sensitization regulates inflammation. EXPERIMENTAL APPROACH Etoposide was used to trigger senescence in 3T3-L1 preadipocytes. CRISPR/Cas9 technology or pharmacology allowed studies of transcription factor function. Fura-2 imaging was used for calcium measurements. Interleukin-6 levels were quantified using quantitative PCR and ELISA. Specific agonists and antagonists supported studies of purinoceptor coupling to interleukin-6 production. Experiments in MS1 VEGF angiosarcoma cells and adipose tissue samples from obese mice complemented preadipocyte experiments. KEY RESULTS DNA damage-induced senescence up-regulated purinoceptor expression levels in preadipocytes and MS1 VEGF angiosarcoma cells. ATP-evoked Ca2+ release was potentiated in senescent preadipocytes. ATP enhanced interleukin-6 production, an effect mimicked by ADP but not UTP, in a calcium-independent manner. Senescence-associated up-regulation and activation of the adenosine A3 receptor also enhanced interleukin-6 production. However, nucleotide hydrolysis was not essential because exposure to ATPγS also enhanced interleukin-6 secretion. Pharmacological experiments suggested coupling of P2X ion channels and P2Y12 -P2Y13 receptors to downstream interleukin-6 production. Interleukin-6 signalling exacerbated inflammation during senescence and compromised adipogenesis. CONCLUSIONS AND IMPLICATIONS We report a previously uncharacterized link between cellular senescence and purinergic signalling in preadipocytes and endothelial cancer cells, raising the possibility that up-regulated purinoceptors play key modulatory roles in senescence-associated conditions like obesity and cancer. There is potential for exploitation of specific purinoceptor antagonists as therapeutics in inflammatory disorders.
Collapse
Affiliation(s)
- Yasser Majeed
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar
| | - Aisha Y Madani
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar
| | - Ahmed I Altamimi
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar
| | - Raphael Courjaret
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar
| | - Muneera Vakayil
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar
- College of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Samuel J Fountain
- School of Biological Sciences, University of East Anglia, Norwich, UK
| | - Khaled Machaca
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar
| | - Nayef A Mazloum
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar
| |
Collapse
|
11
|
Groppa E, Martini P, Derakhshan N, Theret M, Ritso M, Tung LW, Wang YX, Soliman H, Hamer MS, Stankiewicz L, Eisner C, Erwan LN, Chang C, Yi L, Yuan JH, Kong S, Weng C, Adams J, Chang L, Peng A, Blau HM, Romualdi C, Rossi FMV. Spatial compartmentalization of signaling imparts source-specific functions on secreted factors. Cell Rep 2023; 42:112051. [PMID: 36729831 DOI: 10.1016/j.celrep.2023.112051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 09/08/2022] [Accepted: 01/16/2023] [Indexed: 02/03/2023] Open
Abstract
Efficient regeneration requires multiple cell types acting in coordination. To better understand the intercellular networks involved and how they change when regeneration fails, we profile the transcriptome of hematopoietic, stromal, myogenic, and endothelial cells over 14 days following acute muscle damage. We generate a time-resolved computational model of interactions and identify VEGFA-driven endothelial engagement as a key differentiating feature in models of successful and failed regeneration. In addition, the analysis highlights that the majority of secreted signals, including VEGFA, are simultaneously produced by multiple cell types. To test whether the cellular source of a factor determines its function, we delete VEGFA from two cell types residing in close proximity: stromal and myogenic progenitors. By comparing responses to different types of damage, we find that myogenic and stromal VEGFA have distinct functions in regeneration. This suggests that spatial compartmentalization of signaling plays a key role in intercellular communication networks.
Collapse
Affiliation(s)
- Elena Groppa
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada; Borea Therapeutics, Scuola Internazionale Superiore di Studi Avanzati, Via Bonomea 265, Trieste, Italy
| | - Paolo Martini
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy; Department of Biology, University of Padova, via U. Bassi 58B, Padova, Italy
| | - Nima Derakhshan
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Marine Theret
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Morten Ritso
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Lin Wei Tung
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Yu Xin Wang
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Hesham Soliman
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada; Faculty of Pharmaceutical Sciences, Minia University, Minia, Egypt; Aspect Biosystems, 1781 W 75th Avenue, Vancouver, BC, Canada
| | - Mark Stephen Hamer
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Laura Stankiewicz
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Christine Eisner
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Le Nevé Erwan
- Department of Pediatrics, Université Laval, Laval, QC, Canada
| | - Chihkai Chang
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Lin Yi
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Jack H Yuan
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Sunny Kong
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Curtis Weng
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Josephine Adams
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Lucas Chang
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Anne Peng
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada
| | - Helen M Blau
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Chiara Romualdi
- Department of Biology, University of Padova, via U. Bassi 58B, Padova, Italy
| | - Fabio M V Rossi
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, Canada.
| |
Collapse
|
12
|
Coptis chinensis, and extracts of guava and mulberry leaves present good inhibiting potential on obesity and associated metabolic disorders in high-fat diet obesity mice model. J Tradit Complement Med 2023; 13:270-276. [PMID: 37128193 PMCID: PMC10148135 DOI: 10.1016/j.jtcme.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/03/2022] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
This study aimed to investigate the anti-obesity effects of Coptis chinensis (CC), BALASAN (combinational guava leaf extract and mulberry leaf extract), and CC/BALASAN (CC/BAL) on high-fat diet-induced obese C57BL/6 mice and to explore possible mediating mechanisms in 3T3-L1 pre-adipocytes. Oil red-O stain was used to test the effects of CC, BALASAN, and CC/BAL on the differentiation of 3T3-L1 pre-adipocytes. Additionally, real-time PCR was used to detect the expression of genes involved in adipocyte differentiation and inflammation-related genes in adipose tissue of mice that were fed a high-fat diet. CC, BALASAN, and CC/BAL inhibited the differentiation of 3T3-L1 pre-adipocytes and exhibited excellent inhibitory ability against the expression of PPARγ and RXRα genes associated with adipocyte differentiation. Replenishing mice with a high-fat diet with CC, BALASAN, and CC/BAL reduced body weight gaining and blood glucose and plasma cholesterol levels. CC also effectively reduced liver weight, whereas BALASAN and CC/BAL had no inhibitory effect. In addition, CC effectively inhibited the expression of C/EBP-α in adipose tissue. Interestingly, BALASAN not only inhibited the expression of C/EBP-α, but also that of PPARγ, RXRα, and TNFα. Such data indicated that CC, BALASAN, and CC/BAL may have potentially beneficial effects against obesity and associated metabolic disorders by down-regulating the PPARγ/RXRα pathway.
Collapse
|
13
|
AlMuraikhy S, Anwardeen N, Naeem A, Sellami M, Domling A, Agouni A, Elrayess MA. Comparing the Metabolic Profiles Associated with Fitness Status between Insulin-Sensitive and Insulin-Resistant Non-Obese Individuals. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191912169. [PMID: 36231474 PMCID: PMC9564877 DOI: 10.3390/ijerph191912169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 05/27/2023]
Abstract
(1) Background: Young non-obese insulin-resistant (IR) individuals could be at risk of developing metabolic diseases including type 2 diabetes mellitus. The protective effect of physical activity in this apparently healthy group is expected but not well characterized. In this study, clinically relevant metabolic profiles were determined and compared among active and sedentary insulin-sensitive (IS) and IR young non-obese individuals. (2) Methods: Data obtained from Qatar Biobank for 2110 young (20-30 years old) non-obese (BMI ≤ 30) healthy participants were divided into four groups, insulin-sensitive active (ISA, 30.7%), insulin-sensitive sedentary (ISS, 21.4%), insulin-resistant active (IRA, 20%), and insulin-resistant sedentary (IRS, 23.3%), using the homeostatic model assessment of insulin resistance (HOMA-IR) and physical activity questionnaires. The effect of physical activity on 66 clinically relevant biochemical tests was compared among the four groups using linear models. (3) Results: Overall, non-obese IR participants had significantly (p ≤ 0.001) worse vital signs, blood sugar profiles, inflammatory markers, liver function, lipid profiles, and vitamin D levels than their IS counterparts. Physical activity was positively associated with left handgrip (p ≤ 0.01) and levels of creatine kinase (p ≤ 0.001) and creatine kinase-2 (p ≤ 0.001) in both IS and IR subjects. Furthermore, physical activity was positively associated with levels of creatinine (p ≤ 0.01) and total vitamin D (p = 0.006) in the IR group and AST (p = 0.001), folate (p = 0.001), and hematocrit (p = 0.007) in the IS group. Conversely, physical inactivity was negatively associated with the white blood cell count (p = 0.001) and an absolute number of lymphocytes (p = 0.003) in the IR subjects and with triglycerides (p = 0.005) and GGT-2 (p ≤ 0.001) in the IS counterparts. (4) Conclusions: An independent effect of moderate physical activity was observed in non-obese apparently healthy individuals a with different HOMA-IR index. The effect was marked by an improved health profile including higher vitamin D and lower inflammatory markers in IRA compared to IRS, and a higher oxygen carrying capacity and lipid profile in ISA compared to the ISS counterparts.
Collapse
Affiliation(s)
- Shamma AlMuraikhy
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar
- Groningen Research Institute of Pharmacy, Drug Design, Groningen University, 9712 CP Groningen, The Netherlands
| | - Najeha Anwardeen
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar
| | - Aisha Naeem
- Ministry of Public Health, Doha P.O. Box 42, Qatar
- Department of Oncology and Pathology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, 3800 Reservoir Rd., NW, Washington, DC 20007, USA
| | - Maha Sellami
- Physical Education Department (PE), College of Education, Qatar University, Doha P.O. Box 2713, Qatar
| | - Alexander Domling
- Groningen Research Institute of Pharmacy, Drug Design, Groningen University, 9712 CP Groningen, The Netherlands
| | - Abdelali Agouni
- College of Pharmacy, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
| | - Mohamed A. Elrayess
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar
- College of Pharmacy, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
| |
Collapse
|
14
|
In Vitro and In Vivo Validation of GATA-3 Suppression for Induction of Adipogenesis and Improving Insulin Sensitivity. Int J Mol Sci 2022; 23:ijms231911142. [PMID: 36232443 PMCID: PMC9569927 DOI: 10.3390/ijms231911142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/08/2022] [Accepted: 09/16/2022] [Indexed: 12/02/2022] Open
Abstract
Impaired adipogenesis is associated with the development of insulin resistance and an increased risk of type 2 diabetes (T2D). GATA Binding Protein 3 (GATA3) is implicated in impaired adipogenesis and the onset of insulin resistance. Therefore, we hypothesize that inhibition of GATA3 could promote adipogenesis, restore healthy fat distribution, and enhance insulin signaling. Primary human preadipocytes were treated with GATA3 inhibitor (DNAzyme hgd40). Cell proliferation, adipogenic capacity, gene expression, and insulin signaling were measured following well-established protocols. BALB/c mice were treated with DNAzyme hgd40 over a period of 2 weeks. Liposomes loaded with DNAzyme hgd40, pioglitazone (positive), or vehicle (negative) controls were administered subcutaneously every 2 days at the right thigh. At the end of the study, adipose tissues were collected and weighed from the site of injection, the opposite side, and the omental depot. Antioxidant enzyme (superoxide dismutase and catalase) activities were assessed in animals’ sera, and gene expression was measured using well-established protocols. In vitro GATA3 inhibition induced the adipogenesis of primary human preadipocytes and enhanced insulin signaling through the reduced expression of p70S6K. In vivo GATA3 inhibition promoted adipogenesis at the site of injection and reduced MCP-1 expression. GATA3 inhibition also reduced omental tissue size and PPARγ expression. These findings suggest that modulating GATA3 expression offers a potential therapeutic benefit by correcting impaired adipogenesis, promoting healthy fat distribution, improving insulin sensitivity, and potentially lowering the risk of T2D.
Collapse
|
15
|
Das R, Giri J, K Paul P, Froelich N, Chinnadurai R, McCoy S, Bushman W, Galipeau J. A STAT5-Smad3 dyad regulates adipogenic plasticity of visceral adipose mesenchymal stromal cells during chronic inflammation. NPJ Regen Med 2022; 7:41. [PMID: 36045134 PMCID: PMC9433418 DOI: 10.1038/s41536-022-00244-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 08/10/2022] [Indexed: 11/27/2022] Open
Abstract
Adipogenic differentiation of visceral adipose tissue-resident multipotent mesenchymal stromal cells (VA-MSC) into adipocytes is metabolically protective. Under chronic inflammatory stress, this neoadipogenesis process is suppressed by various pro-inflammatory cytokines and growth factors. However, the underlying mechanism(s) regulating VA-MSC plasticity remains largely unexplored. Using an adipogenic differentiation screen, we identified IFNγ and TGFβ as key inhibitors of primary human VA-MSC differentiation. Further studies using human and mouse VA-MSCs and a chronic high-fat diet-fed murine model revealed that IFNγ/JAK2-activated STAT5 transcription factor is a central regulator of VA-MSC differentiation under chronic inflammatory conditions. Furthermore, our results indicate that under such conditions, IFNγ-activated STAT5 and TGFβ-activated Smad3 physically interact via Smad4. This STAT5-Smad4-Smad3 complex plays a crucial role in preventing the early adipogenic commitment of VA-MSCs by suppressing key pro-adipogenic transcription factors, including CEBPδ, CEBPα, and PPARγ. Genetic or pharmacological disruption of IFNγ-TGFβ synergy by inhibiting either STAT5 or Smad3 rescued adipogenesis under chronic inflammatory stress. Overall, our study delineates a central mechanism of MSC plasticity regulation by the convergence of multiple inflammatory signaling pathways.
Collapse
Affiliation(s)
- Rahul Das
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Jayeeta Giri
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Pradyut K Paul
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Nicole Froelich
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Raghavan Chinnadurai
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- School of Medicine, Mercer University, Savannah, GA, 31404, USA
| | - Sara McCoy
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Wade Bushman
- Department of Urology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Jacques Galipeau
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA.
| |
Collapse
|
16
|
Della Guardia L, Shin AC. White and brown adipose tissue functionality is impaired by fine particulate matter (PM2.5) exposure. J Mol Med (Berl) 2022; 100:665-676. [PMID: 35286401 PMCID: PMC9110515 DOI: 10.1007/s00109-022-02183-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 01/09/2022] [Accepted: 02/16/2022] [Indexed: 12/17/2022]
Affiliation(s)
- Lucio Della Guardia
- Department of Biomedical Sciences for Health, Università Degli Studi Di Milano, via Fratelli Cervi 93, 20090, Segrate, Milano, Italy.
| | - Andrew C Shin
- Department of Nutritional Sciences, College of Human Sciences, Texas Tech University, Lubbock, TX, USA
| |
Collapse
|
17
|
Nankam PAN, Cornely M, Klöting N, Blüher M. Is subcutaneous adipose tissue expansion in people living with lipedema healthier and reflected by circulating parameters? Front Endocrinol (Lausanne) 2022; 13:1000094. [PMID: 36387874 PMCID: PMC9659629 DOI: 10.3389/fendo.2022.1000094] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 10/14/2022] [Indexed: 11/13/2022] Open
Abstract
Lipedema may be considered a model for healthy expandability of subcutaneous adipose tissue (SAT). This condition is characterized by the disproportional and symmetrical SAT accumulation in the lower-body parts and extremities, avoiding the abdominal area. There are no circulating biomarkers facilitating the diagnosis of lipedema. We tested the hypothesis that women living with lipedema present a distinct pattern of circulating parameters compared to age- and BMI-matched women. In 26 women (Age 48.3 ± 13.9 years, BMI 32.6 ± 5.8 kg/m2; lipedema group: n=13; control group: n=13), we assessed circulating parameters of glucose and lipid metabolism, inflammation, oxidative stress, sex hormones and a proteomics panel. We find that women with lipedema have better glucose metabolism regulation represented by lower HbA1c (5.55 ± 0.62%) compared to controls (6.73 ± 0.85%; p<0.001); and higher adiponectin levels (lipedema: 4.69 ± 1.99 mmol/l; control: 3.28 ± 1.00 mmol/l; p=0.038). Despite normal glycemic parameters, women with lipedema have significantly higher levels of total cholesterol (5.84 ± 0.70 mmol/L vs 4.55 ± 0.77 mmol/L in control; p<0.001), LDL-C (3.38 ± 0.68 mmol/L vs 2.38 ± 0.66 mmol/L in control; p=0.002), as well as higher circulating inflammation (top 6 based on p-values: TNFSF14, CASP8, EN-RAGE, EIF4EBP1, ADA, MCP-1) and oxidative stress markers (malondialdehyde, superoxide dismutase and catalase). Our findings suggest that the expected association between activation of inflammatory and oxidative stress pathways and impaired glucose metabolism are counterbalanced by protective factors in lipedema.
Collapse
Affiliation(s)
- Pamela A. Nono Nankam
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), Helmholtz Zentrum München, University Hospital Leipzig, University of Leipzig, Leipzig, Germany
- *Correspondence: Pamela A. Nono Nankam, ; Matthias Blüher,
| | - Manuel Cornely
- Basic Scientific Research of Lymphological Diseases and Patient-oriented Improvement of Diagnosis and Treatment Ly.Search GmbH, Cologne, Germany
| | - Nora Klöting
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), Helmholtz Zentrum München, University Hospital Leipzig, University of Leipzig, Leipzig, Germany
| | - Matthias Blüher
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), Helmholtz Zentrum München, University Hospital Leipzig, University of Leipzig, Leipzig, Germany
- Medical Department III – Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany
- *Correspondence: Pamela A. Nono Nankam, ; Matthias Blüher,
| |
Collapse
|
18
|
Wang H, Chen X, Chen C, Pan T, Li M, Yao L, Li X, Lu Q, Wang H, Wang Z. Electroacupuncture at Lower He-Sea and Front-Mu Acupoints Ameliorates Insulin Resistance in Type 2 Diabetes Mellitus by Regulating the Intestinal Flora and Gut Barrier. Diabetes Metab Syndr Obes 2022; 15:2265-2276. [PMID: 35936053 PMCID: PMC9348137 DOI: 10.2147/dmso.s374843] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/16/2022] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION The study objective was to investigate the effects of electroacupuncture performed at the he-sea and front-mu acupoints on the intestinal microflora and intestinal barrier in db/db mice and to explore the related mechanism in type 2 diabetes mellitus. METHODS Db/m mice in the normal control group (NOC), electroacupuncture group (EA), metformin group (MET) and T2DM group (T2DM) were used as model controls, and db/db mice were used in all three groups, with 8 mice in each group. The treatment period was 2 weeks. Fasting blood glucose (FBG) and triglyceride (TG) levels were measured. Lipopolysaccharide (LPS) and tumor necrosis factor-α (TNF-α) levels were detected by enzyme-linked immune sorbent assay (ELISA). The ileal tissue was stained with hematoxylin-eosin staining (H&E), and histopathological changes were observed under a light microscope. Illumina sequencing was used to analyze the V4 region of the 16S rRNA gene to evaluate the effect of EA on the intestinal flora. RESULTS Our results suggest that EA treatment can reduce the expression of diabetes-related markers, with an effect similar to that of metformin. After EA intervention, the abundance of Firmicutes and the ratio of Firmicutes to Bacteroidetes increased, while the abundances of Bacteroidetes and Eubacterium decreased. In addition, the serum levels of LPS and TNF-α in the electroacupuncture group were downregulated, and ileal tissue damage was alleviated under an electron microscope. CONCLUSION EA combined with acupoints can restore the intestinal flora structure, decrease the blood LPS level, reduce levels of inflammation, maintain the integrity of the intestinal barrier, and play a therapeutic role in the treatment of T2DM, mainly by increasing the abundance of Firmicutes and the ratio of Firmicutes to Bacteroidetes and decreasing the abundances of Bacteroidetes and Eubacterium.
Collapse
Affiliation(s)
- Haili Wang
- School of Acupuncture-Moxibustion and Tuina, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Xinhua Chen
- Department of Acupuncture and Moxibustion, Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin, 130021, People’s Republic of China
| | - Chunhai Chen
- Department of Acupuncture and Moxibustion, Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin, 130021, People’s Republic of China
| | - Ting Pan
- School of Acupuncture-Moxibustion and Tuina, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Mengyuan Li
- School of Acupuncture-Moxibustion and Tuina, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Lin Yao
- School of Acupuncture-Moxibustion and Tuina, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Xuefeng Li
- School of Acupuncture-Moxibustion and Tuina, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Qi Lu
- School of Acupuncture-Moxibustion and Tuina, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Hongfeng Wang
- Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
- Correspondence: Hongfeng Wang, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China, Tel/Fax +86 431 86172008, Email
| | - Zhaohui Wang
- School of Acupuncture-Moxibustion and Tuina, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
- Bao’an Authentic TCM Therapy Hospital, Shenzhen, 518101, People’s Republic of China
- Zhaohui Wang, School of Acupuncture-Moxibustion and Tuina, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China, Tel/Fax +86 431 8687856, Email
| |
Collapse
|
19
|
Sanaei R, Kularathna P, Taghavi N, Hooper J, Pagel C, Mackie E. Protease-activated receptor-2 promotes osteogenesis in skeletal mesenchymal stem cells at the expense of adipogenesis: Involvement of interleukin-6. Bone Rep 2021; 15:101113. [PMID: 34430676 PMCID: PMC8365448 DOI: 10.1016/j.bonr.2021.101113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/26/2021] [Accepted: 07/30/2021] [Indexed: 10/27/2022] Open
Abstract
Bone marrow mesenchymal stem cells (MSCs) give rise to osteoblasts and adipocytes, with an inverse relationship between the two. The MSCs from protease-activated receptor-2 knockout (PAR2 KO) mice have a reduced capacity to generate osteoblasts. Here we describe the observation that PAR2 KO osteoblastic cultures generate more adipocytes than wildtype (WT) cultures. Osteoblasts from PAR2 KO mice expressed lower levels of osteoblastic genes (Runx2, Col1a1 and Bglap), and higher levels of the adipocytic gene Pparg than WT osteoblasts. Bone marrow stromal cells from PAR2 KO mice generated fewer osteoblastic colonies (assessed by staining for alkaline phosphatase activity and mineral deposition) and more adipocytic (Oil Red-O positive) colonies than cultures from WT mice. Similarly, cultures of the bone marrow stromal cell line (Kusa 4b10) in which PAR2 was knocked down (F2rl1 KD), were less osteoblastic and more adipocytic than vector control cells. Putative regulators of PAR2-mediated osteogenesis and suppression of adipogenesis were identified in an RNA-sequencing (RNA-seq) investigation; these include C1qtnf3, Gpr35, Grem1, Snorc and Tcea3, which were more highly expressed, and Cnr1, Enpep, Hmgn5, Il6 and Ramp3 which were expressed at lower levels, in control than in F2rl1 KD cells. Interleukin-6 (IL-6) levels were higher in medium harvested from F2rl1 KD cells than from control cells, and a neutralising anti-IL-6 antibody reduced the number of adipocytes in F2rl1 KD cultures to that of control cultures. Thus, PAR2 appears to be a mediator of the reciprocal relationship between osteogenesis and adipogenesis, with IL-6 having a regulatory role in these PAR2-mediated effects.
Collapse
Affiliation(s)
- R. Sanaei
- Department of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - P.K. Kularathna
- Department of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - N. Taghavi
- Department of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - J.D. Hooper
- Mater Research Institute, The University of Queensland, Translational Research Institute, Woolloongabba, Queensland 4102, Australia
| | - C.N. Pagel
- Department of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - E.J. Mackie
- Department of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Parkville, Victoria 3010, Australia
| |
Collapse
|
20
|
Jakkawanpitak C, Inafuku M, Oku H, Hutadilok-Towatana N, Bunkrongcheap R, Sermwittayawong N, Aiemchareon P, Sermwittayawong D. Mechanism of the fungal-like particles in the inhibition of adipogenesis in 3T3-L1 adipocytes. Sci Rep 2021; 11:18869. [PMID: 34552185 PMCID: PMC8458348 DOI: 10.1038/s41598-021-98385-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 09/01/2021] [Indexed: 02/08/2023] Open
Abstract
The dynamic ability of adipocytes in adipose tissue to store lipid in response to changes in the nutritional input and inflammatory elicitors has a major impact on human health. Previously, we established laminarin-coated beads or LCB as an inflammatory elicitor for adipocytes. However, it was not clear whether LCB inhibits lipid accumulation in adipocytes. Here, we show that LCB acts in the early stage of adipogenesis through both interleukin-1 receptor-associated kinases (IRAK) and spleen tyrosine kinase (SYK) pathways, resulting in the activation of the AMP-activated protein kinase (AMPK) and nuclear factor-κB (NF-κB) complexes, which subsequently cause cell cycle arrest, downregulation of the key transcription factors and enzymes responsible for adipogenesis, inhibition of adipogenesis, and stimulation of an inflammatory response. While LCB could effectively block lipid accumulation during the early stage of adipogenesis, it could stimulate an inflammatory response at any stage of differentiation. Additionally, our results raise a possibility that toll-like receptor 2 (TLR2) and C-type lectin domain family 7 member A (CLEC7A/Dectin-1) might be potential β-glucan receptors on the fat cells. Together, we present the mechanism of LCB, as fungal-like particles, that elicits an inflammatory response and inhibits adipogenesis at the early stage of differentiation.
Collapse
Affiliation(s)
- Chanawee Jakkawanpitak
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
| | - Masashi Inafuku
- Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Hirosuke Oku
- Molecular Biotechnology Group, Center of Molecular Biosciences, Tropical Biosphere Research Center, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Nongporn Hutadilok-Towatana
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
| | - Ruthaiwan Bunkrongcheap
- College of Innovation and Management, Songkhla Rajabhat University, Muang District, Songkhla, 90000, Thailand
| | - Natthawan Sermwittayawong
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
| | - Piyapat Aiemchareon
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
- Functional Food and Nutrition Program, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
| | - Decha Sermwittayawong
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand.
| |
Collapse
|
21
|
Role of Inflammatory Cytokines, Growth Factors and Adipokines in Adipogenesis and Insulin Resistance. Inflammation 2021; 45:31-44. [PMID: 34536157 PMCID: PMC8449520 DOI: 10.1007/s10753-021-01559-z] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/24/2021] [Accepted: 08/31/2021] [Indexed: 01/06/2023]
Abstract
Obesity, manifested by increased adiposity, represents a main cause of morbidity in the developed countries, causing increased risk of insulin resistance and type 2 diabetes mellitus. Recruitment of macrophages and activation of innate immunity represent the initial insult, which can be further exacerbated through secretion of chemokines and adipocytokines from activated macrophages and other cells within the adipose tissue. These events can impact adipogenesis, causing dysfunction of the adipose tissue and increased risk of insulin resistance. Various factors mediate adiposity and related insulin resistance including inflammatory and non-inflammatory factors such as pro and anti-inflammatory cytokines, adipokines and growth factors. In this review we will discuss the role of these factors in adipogenesis and development of insulin resistance and type 2 diabetes mellitus in the context of obesity. Understanding the molecular mechanisms that mediate adipogenesis and insulin resistance could help the development of novel therapeutic strategies for individuals at higher risk of insulin resistance and type 2 diabetes mellitus.
Collapse
|
22
|
Mittelman SD, Kim J, Raca G, Li G, Oberley MJ, Orgel E. Increased prevalence of CRLF2 rearrangements in obesity-associated acute lymphoblastic leukemia. Blood 2021; 138:199-202. [PMID: 33876219 PMCID: PMC8288656 DOI: 10.1182/blood.2021011106] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 04/02/2021] [Indexed: 02/08/2023] Open
Affiliation(s)
- Steven D Mittelman
- Division of Pediatric Endocrinology, University of California, Los Angeles (UCLA) Children's Discovery and Innovation Institute, David Geffen School of Medicine, and
| | - Jiyoon Kim
- Department of Biostatistics and Computational Medicine, Jonathan and Karin Fielding School of Public Health, UCLA, Los Angeles, CA
| | - Gordana Raca
- Center for Personalized Medicine, Children's Hospital Los Angeles, Los Angeles, CA
- Department of Pediatrics, Keck School of Medicine of the University of Southern California, Los Angeles, CA; and
| | - Gang Li
- Department of Biostatistics and Computational Medicine, Jonathan and Karin Fielding School of Public Health, UCLA, Los Angeles, CA
| | | | - Etan Orgel
- Department of Pediatrics, Keck School of Medicine of the University of Southern California, Los Angeles, CA; and
- Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Los Angeles, CA
| |
Collapse
|
23
|
Bruno A, Di Sano C, Simon HU, Chanez P, Patti AM, Di Vincenzo S, Dino P, D'Esposito V, Formisano P, Beguinot F, Pace E. Leptin and TGF-β1 Downregulate PREP1 Expression in Human Adipose-Derived Mesenchymal Stem Cells and Mature Adipocytes. Front Cell Dev Biol 2021; 9:700481. [PMID: 34327205 PMCID: PMC8315375 DOI: 10.3389/fcell.2021.700481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/10/2021] [Indexed: 12/19/2022] Open
Abstract
Adipose tissue is widely recognized as an extremely active endocrine organ producing adipokines as leptin that bridge metabolism and the immune system. Pre-B-cell leukemia homeobox (Pbx)-regulating protein-1 (PREP1) is a ubiquitous homeodomain transcription factor involved in the adipogenic differentiation and insulin-sensitivity processes. Leptin, as pleiotropic adipokine, and TGF-β, known to be expressed by primary pre-adipocytes [adipose-derived stem cells (ASCs)] and mature differentiated adipocytes, modulate inflammatory responses. We aimed to assess for the first time if leptin and TGF-β interfere with PREP1 expression in both ASCs and mature differentiated adipocytes. Human ASCs were isolated from subcutaneous adipose liposuction and, after expansion, fully differentiated to mature adipocytes. In both ASCs and adipocytes, leptin and TGF-β1 significantly decreased the expression of PREP1, alone and following concurrent Toll-like receptor 4 (TLR4) activation. Moreover, in adipocytes, but not in ASCs, leptin increased TLR4 and IL-33 expression, whereas TGF-β1 enhanced TLR4 and IL-6 expression. Taken together, we provide evidence for a direct regulation of PREP1 by leptin and TGF-β1 in ASCs and mature adipocytes. The effects of leptin and TGF-β1 on immune receptors and cytokines, however, are limited to mature adipocytes, suggesting that modulating immune responses depends on the differentiation of ASCs. Further studies are needed to fully understand the regulation of PREP1 expression and its potential for the development of new therapeutic approaches in obesity-related diseases.
Collapse
Affiliation(s)
- Andreina Bruno
- Institute for Biomedical Research and Innovation (IRIB), National Research Council, Palermo, Italy
| | - Caterina Di Sano
- Institute for Biomedical Research and Innovation (IRIB), National Research Council, Palermo, Italy
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland.,Institute of Biochemistry, Medical School Brandenburg, Neuruppin, Germany.,Department of Clinical Immunology and Allergology, Sechenov University, Moscow, Russia.,Laboratory of Molecular Immunology, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Pascal Chanez
- Department of Respiratory Diseases CIC Nord INSERM, INRAE, C2VN, Aix Marseille University, Marseille, France
| | - Angelo Maria Patti
- Department of Health Promotion Sciences Maternal and Infantile Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy
| | - Serena Di Vincenzo
- Institute for Biomedical Research and Innovation (IRIB), National Research Council, Palermo, Italy
| | - Paola Dino
- Institute for Biomedical Research and Innovation (IRIB), National Research Council, Palermo, Italy
| | - Vittoria D'Esposito
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Pietro Formisano
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Francesco Beguinot
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Elisabetta Pace
- Institute for Biomedical Research and Innovation (IRIB), National Research Council, Palermo, Italy
| |
Collapse
|
24
|
Moreno-Navarrete JM, Comas F, de Jager V, Fernández-Real JM, Bouma HR. Cecal Ligation and Puncture-Induced Sepsis Promotes Brown Adipose Tissue Inflammation Without Any Impact on Expression of Thermogenic-Related Genes. Front Physiol 2021; 12:692618. [PMID: 34322037 PMCID: PMC8313297 DOI: 10.3389/fphys.2021.692618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/15/2021] [Indexed: 11/13/2022] Open
Abstract
Background and Aims: The negative effects of chronic low-level inflammation on adipose tissue physiology have been extensively demonstrated, whereas the effects of acute inflammation are less studied. Here, we aimed to investigate the effects of sepsis-induced acute inflammation on gene expression markers of brown and white adipose tissue functionality. Methods: Brown adipose tissue (BAT) and perirenal white adipose tissue (prWAT) gene expression markers were analyzed in cecal ligation and puncture (CLP)-induced sepsis mice model. Results: CLP-induced sepsis attenuated expression of adipogenesis-related genes, in parallel to increased Tnf, Il6, and Ltf gene expression in prWAT. In contrast, CLP-induced sepsis resulted in increased expression of pro-inflammatory genes (Il6, Ltf, and Lbp) in BAT, without affecting expression of genes encoding for thermogenic activity. Conclusion: Sepsis promotes both prWAT and BAT inflammation, associated with reduced adipogenesis-related gene expression in prWAT, without significant effects on BAT thermogenic genes.
Collapse
Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Hospital of Girona "Dr Josep Trueta" and Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain.,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBERobn) (CB06/03/010), Girona, Spain.,Department of Medicine, Universitat de Girona, Girona, Spain
| | - Ferran Comas
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Hospital of Girona "Dr Josep Trueta" and Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain.,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBERobn) (CB06/03/010), Girona, Spain
| | - Vincent de Jager
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Hospital of Girona "Dr Josep Trueta" and Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain.,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBERobn) (CB06/03/010), Girona, Spain.,Department of Medicine, Universitat de Girona, Girona, Spain
| | - Hjalmar R Bouma
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.,Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| |
Collapse
|
25
|
Nono Nankam PA, Blüher M. Retinol-binding protein 4 in obesity and metabolic dysfunctions. Mol Cell Endocrinol 2021; 531:111312. [PMID: 33957191 DOI: 10.1016/j.mce.2021.111312] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/28/2021] [Accepted: 04/29/2021] [Indexed: 12/11/2022]
Abstract
Excessive increased adipose tissue mass in obesity is associated with numerous co-morbid disorders including increased risk of type 2 diabetes, fatty liver disease, hypertension, dyslipidemia, cardiovascular diseases, dementia, airway disease and some cancers. The causal mechanisms explaining these associations are not fully understood. Adipose tissue is an active endocrine organ that secretes many adipokines, cytokines and releases metabolites. These biomolecules referred to as adipocytokines play a significant role in the regulation of whole-body energy homeostasis and metabolism by influencing and altering target tissues function. Understanding the mechanisms of adipocytokine actions represents a hot topic in obesity research. Among several secreted bioactive signalling molecules from adipose tissue and liver, retinol-binding protein 4 (RBP4) has been associated with systemic insulin resistance, dyslipidemia, type 2 diabetes and other metabolic diseases. Here, we aim to review and discuss the current knowledge on RBP4 with a focus on its role in the pathogenesis of obesity comorbid diseases.
Collapse
Affiliation(s)
- Pamela A Nono Nankam
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany.
| | - Matthias Blüher
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany; Medical Department III - Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Germany
| |
Collapse
|
26
|
Cancer-Associated Adipocytes in Breast Cancer: Causes and Consequences. Int J Mol Sci 2021; 22:ijms22073775. [PMID: 33917351 PMCID: PMC8038661 DOI: 10.3390/ijms22073775] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 02/07/2023] Open
Abstract
Breast cancer progression is highly dependent on the heterotypic interaction between tumor cells and stromal cells of the tumor microenvironment. Cancer-associated adipocytes (CAAs) are emerging as breast cancer cell partners favoring proliferation, invasion, and metastasis. This article discussed the intersection between extracellular signals and the transcriptional cascade that regulates adipocyte differentiation in order to appreciate the molecular pathways that have been described to drive adipocyte dedifferentiation. Moreover, recent studies on the mechanisms through which CAAs affect the progression of breast cancer were reviewed, including adipokine regulation, metabolic reprogramming, extracellular matrix remodeling, and immune cell modulation. An in-depth understanding of the complex vicious cycle between CAAs and breast cancer cells is crucial for designing novel strategies for new therapeutic interventions.
Collapse
|
27
|
Barroso Oquendo M, Siegel-Axel D, Gerst F, Lorza-Gil E, Moller A, Wagner R, Machann J, Fend F, Königsrainer A, Heni M, Häring HU, Ullrich S, Birkenfeld AL. Pancreatic fat cells of humans with type 2 diabetes display reduced adipogenic and lipolytic activity. Am J Physiol Cell Physiol 2021; 320:C1000-C1012. [PMID: 33788629 DOI: 10.1152/ajpcell.00595.2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Obesity, especially visceral fat accumulation, increases the risk of type 2 diabetes (T2D). The purpose of this study was to investigate the impact of T2D on the pancreatic fat depot. Pancreatic fat pads from 17 partial pancreatectomized patients (PPP) were collected, pancreatic preadipocytes isolated, and in vitro differentiated. Patients were grouped using HbA1c into normal glucose tolerant (NGT), prediabetic (PD), and T2D. Transcriptome profiles of preadipocytes and adipocytes were assessed by RNAseq. Insulin sensitivity was estimated by quantifying AKT phosphorylation on Western blots. Lipogenic capacity was assessed with oil red O staining, lipolytic activity via fatty acid release. Secreted factors were measured using ELISA. Comparative transcriptome analysis of preadipocytes and adipocytes indicates defective upregulation of genes governing adipogenesis (NR1H3), lipogenesis (FASN, SCD, ELOVL6, and FADS1), and lipolysis (LIPE) during differentiation of cells from T2D-PPP. In addition, the ratio of leptin/adiponectin mRNA was higher in T2D than in NGT-PPP. Preadipocytes and adipocytes of NGT-PPP were more insulin sensitive than T2D-PPP cells in regard to AKT phosphorylation. Triglyceride accumulation was similar in NGT and T2D adipocytes. Despite a high expression of the receptors NPR1 and NPR2 in NGT and T2D adipocytes, lipolysis was stimulated by ANP 1.74-fold in NGT cells only. This stimulation was further increased by the PDE5 inhibitor dipyridamole (3.09-fold). Dipyridamole and forskolin increased lipolysis receptor independently 1.88-fold and 1.48-fold, respectively, solely in NGT cells. In conclusion, the metabolic status persistently affects differentiation and lipolysis of pancreatic adipocytes. These alterations could aggravate the development of T2D.
Collapse
Affiliation(s)
- Morgana Barroso Oquendo
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Dorothea Siegel-Axel
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Felicia Gerst
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard-Karls-University of Tübingen, Neuherberg, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Estela Lorza-Gil
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard-Karls-University of Tübingen, Neuherberg, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Anja Moller
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard-Karls-University of Tübingen, Neuherberg, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Robert Wagner
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard-Karls-University of Tübingen, Neuherberg, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Jürgen Machann
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard-Karls-University of Tübingen, Neuherberg, Germany.,Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Falko Fend
- Institute of Pathology and Neuropathology, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Alfred Königsrainer
- Department of General, Visceral and Transplant Surgery, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Martin Heni
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard-Karls-University of Tübingen, Neuherberg, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany.,Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Hans-Ulrich Häring
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard-Karls-University of Tübingen, Neuherberg, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Susanne Ullrich
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard-Karls-University of Tübingen, Neuherberg, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Andreas L Birkenfeld
- German Center for Diabetes Research (DZD e.V.), Tübingen, Germany.,Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard-Karls-University of Tübingen, Neuherberg, Germany.,Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine IV, University Hospital of Eberhard-Karls-University Tübingen, Tübingen, Germany
| |
Collapse
|
28
|
ChaiQi Decoction Alleviates Vascular Endothelial Injury by Downregulating the Inflammatory Response in ApoE-Model Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:9415819. [PMID: 33628325 PMCID: PMC7889348 DOI: 10.1155/2021/9415819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 12/29/2020] [Accepted: 01/09/2021] [Indexed: 11/30/2022]
Abstract
Metabolic syndrome (MetS) is a pathological state of metabolic disorders that primarily occur in human proteins, fats, and carbohydrates. It is a complex cluster of core metabolic disorder syndromes including obesity, hyperglycemia, dyslipidemia, and hypertension, and vascular endothelial injury, occurring over time. The currently available treatment options cannot effectively manage MetS. In our previous research, we revealed ChaiQi decoction (CQD) as an effective prescription for improving MetS; however, the specific mechanism remains unclear. Herein, we assessed the efficacy and mechanism of CQD in ApoE gene knockout (ApoE-) mice. Mice were administered with CQD daily for 12 weeks, and the measurement of their body weight was taken monthly. To evaluate the metabolic levels of mice, we determined the fasting blood glucose (FBG), fasting serum insulin (FINS), insulin resistance index (IRI), triglyceride (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) levels. Furthermore, immunohistochemical analysis was adopted to determine the expression of ICAM-1 and VCAM-1 in vascular endothelium, while an optical microscope was adopted to observe the pathological morphology of abdominal aorta in mice. Tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), intercellular cell adhesion molecule-1 (ICAM-1), and vascular cell adhesion molecule-1 (VCAM-1) levels were determined using the ELISA method, whereas Western blotting was used to determine nuclear factor- (NF-) κB p65. Of note, intragastric CQD administration ameliorated ApoE-model mice, as evidenced by reduced levels of FBG, FINS, IRI, TG, TC, and LDL-C. Furthermore, CQD alleviated vascular endothelial injury and regularized the structure of the abdominal aorta by downregulating the expressions of proinflammatory cytokines TNF-α, IL-6, ICAM-1, VCAM-1, and NF-κB p65. Overall, these findings advocated that CQD ameliorates metabolic levels and vascular endothelial injury in mice by downregulating the inflammatory response and thus may be utilized as a novel MetS therapy.
Collapse
|
29
|
Madani AY, Majeed Y, Abdesselem HB, Agha MV, Vakayil M, Sukhun NKA, Halabi NM, Kumar P, Hayat S, Elrayess MA, Rafii A, Suhre K, Mazloum NA. Signal Transducer and Activator of Transcription 3 (STAT3) Suppresses STAT1/Interferon Signaling Pathway and Inflammation in Senescent Preadipocytes. Antioxidants (Basel) 2021; 10:antiox10020334. [PMID: 33672392 PMCID: PMC7927067 DOI: 10.3390/antiox10020334] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 12/20/2022] Open
Abstract
Obesity promotes premature aging and dysfunction of white adipose tissue (WAT) through the accumulation of cellular senescence. The senescent cells burden in WAT has been linked to inflammation, insulin-resistance (IR), and type 2 diabetes (T2D). There is limited knowledge about molecular mechanisms that sustain inflammation in obese states. Here, we describe a robust and physiologically relevant in vitro system to trigger senescence in mouse 3T3-L1 preadipocytes. By employing transcriptomics analyses, we discovered up-regulation of key pro-inflammatory molecules and activation of interferon/signal transducer and activator of transcription (STAT)1/3 signaling in senescent preadipocytes, and expression of downstream targets was induced in epididymal WAT of obese mice, and obese human adipose tissue. To test the relevance of STAT1/3 signaling to preadipocyte senescence, we used Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR associated protein 9 (CRISPR/Cas9) technology to delete STAT1/3 and discovered that STAT1 promoted growth arrest and cooperated with cyclic Guanosine Monophosphate-Adenosine Monophosphate (GMP-AMP) synthase-stimulator of interferon genes (cGAS-STING) to drive the expression of interferon β (IFNβ), C-X-C motif chemokine ligand 10 (CXCL10), and interferon signaling-related genes. In contrast, we discovered that STAT3 was a negative regulator of STAT1/cGAS-STING signaling-it suppressed senescence and inflammation. These data provide insights into how STAT1/STAT3 signaling coordinates senescence and inflammation through functional interactions with the cGAS/STING pathway.
Collapse
Affiliation(s)
- Aisha Y. Madani
- College of Health & Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar; (A.Y.M.); (M.V.)
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
| | - Yasser Majeed
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
| | - Houari B. Abdesselem
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar;
| | - Maha V. Agha
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar;
| | - Muneera Vakayil
- College of Health & Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar; (A.Y.M.); (M.V.)
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
| | - Nour K. Al Sukhun
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
| | - Najeeb M. Halabi
- Department of Genetic Medicine, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (N.M.H.); (A.R.)
| | | | - Shahina Hayat
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (S.H.); (K.S.)
| | | | - Arash Rafii
- Department of Genetic Medicine, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (N.M.H.); (A.R.)
| | - Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (S.H.); (K.S.)
| | - Nayef A. Mazloum
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
- Correspondence:
| |
Collapse
|
30
|
Ruggiero AD, Key CCC, Kavanagh K. Adipose Tissue Macrophage Polarization in Healthy and Unhealthy Obesity. Front Nutr 2021; 8:625331. [PMID: 33681276 PMCID: PMC7925825 DOI: 10.3389/fnut.2021.625331] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/05/2021] [Indexed: 12/12/2022] Open
Abstract
Over 650 million adults are obese (body mass index ≥ 30 kg/m2) worldwide. Obesity is commonly associated with several comorbidities, including cardiovascular disease and type II diabetes. However, compiled estimates suggest that from 5 to 40% of obese individuals do not experience metabolic or cardiovascular complications. The existence of the metabolically unhealthy obese (MUO) and the metabolically healthy obese (MHO) phenotypes suggests that underlying differences exist in both tissues and overall systemic function. Macrophage accumulation in white adipose tissue (AT) in obesity is typically associated with insulin resistance. However, as plastic cells, macrophages respond to stimuli in their microenvironments, altering their polarization between pro- and anti-inflammatory phenotypes, depending on the state of their surroundings. The dichotomous nature of MHO and MUO clinical phenotypes suggests that differences in white AT function dictate local inflammatory responses by driving changes in macrophage subtypes. As obesity requires extensive AT expansion, we posit that remodeling capacity with adipose expansion potentiates favorable macrophage profiles in MHO as compared with MUO individuals. In this review, we discuss how differences in adipogenesis, AT extracellular matrix deposition and breakdown, and AT angiogenesis perpetuate altered AT macrophage profiles in MUO compared with MHO. We discuss how non-autonomous effects of remote organ systems, including the liver, gastrointestinal tract, and cardiovascular system, interact with white adipose favorably in MHO. Preferential AT macrophage profiles in MHO stem from sustained AT function and improved overall fitness and systemic health.
Collapse
Affiliation(s)
- Alistaire D Ruggiero
- Section on Comparative Medicine, Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Chia-Chi Chuang Key
- Section on Molecular Medicine, Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Kylie Kavanagh
- Section on Comparative Medicine, Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, United States.,Department of Biomedicine, University of Tasmania, Hobart, TAS, Australia
| |
Collapse
|
31
|
Cheng M, Zhou Y, Wang B, Mu G, Ma J, Zhou M, Wang D, Yang M, Cao L, Xie L, Wang X, Nie X, Yu L, Yuan J, Chen W. IL-22: A potential mediator of associations between urinary polycyclic aromatic hydrocarbon metabolites with fasting plasma glucose and type 2 diabetes. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123278. [PMID: 32634658 DOI: 10.1016/j.jhazmat.2020.123278] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
Previous studies found that exposure to polycyclic aromatic hydrocarbons (PAHs) was associated with type 2 diabetes (T2D) prevalence. However, the potential mechanism is still unclear. In this study, we investigated 3031 Chinese urban adults to discover the relationship between PAH exposure and plasma Interleukin-22 (IL-22) and potential role of IL-22 in the association between PAH and fasting plasma glucose (FPG) or risk of T2D. After adjustment for potential confounders, significant dose-response relationships were observed between several urinary PAH metabolites with FPG and the prevalence of T2D. Each 1-U increase in ln-transformed value of 2-hydroxynaphthalene (2-OHNa), 2-hydroxyphenanthrene (2-OHPh), 3-hydroxyphenanthrene (3-OHPh), 4-hydroxyphenanthrene (4-OHPh), 9-hydroxyphenanthrene (9-OHPh), 1-hydroxypyrene (1-OHP) or total PAH metabolites was significantly associated with a 0.053, 0.026, 0.037, 0.045, 0.051, 0.041 or 0.047 unit decrease in IL-22 level, respectively. In addition, plasma IL-22 level was negatively associated with FPG and prevalence of T2D in a dose-dependent manner. Mediation analysis showed that IL-22 mediated 8.48 %, 3.87 %, 6.64 %, 6.47 %, and 8.67 % of the associations between urinary 2-OHNa, 1-OHPh, 3-OHPh, 4-OHPh, and 9-OHPh with the prevalence of T2D, respectively. These results indicated that urinary PAHs metabolites were inversely associated with plasma levels of IL-22, but positively related to FPG and the T2D prevalence. Downregulation of IL-22 might play a significant role in mediating PAHs exposure-associated risk increasement of T2D.
Collapse
Affiliation(s)
- Man Cheng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yun Zhou
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Bin Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ge Mu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jixuan Ma
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Min Zhou
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Dongming Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Meng Yang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Limin Cao
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Li Xie
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xing Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiuquan Nie
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - LingLing Yu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jing Yuan
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Weihong Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| |
Collapse
|
32
|
Zhang L, Chen X, Wang H, Huang H, Li M, Yao L, Ma S, Zhong Z, Yang H, Wang H. "Adjusting Internal Organs and Dredging Channel" Electroacupuncture Ameliorates Insulin Resistance in Type 2 Diabetes Mellitus by Regulating the Intestinal Flora and Inhibiting Inflammation. Diabetes Metab Syndr Obes 2021; 14:2595-2607. [PMID: 34135611 PMCID: PMC8200173 DOI: 10.2147/dmso.s306861] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 05/13/2021] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Traditional Chinese acupuncture has been demonstrated to be beneficial for treatment of type 2 diabetes mellitus (T2DM). The mechanism of acupuncture on T2DM is crucial for their biological activity as well as their usefulness as tools in biology and medicine. However, its mechanism is poorly understood. METHODS In an effort to explore the mechanism, eight db/db mice (a type of spontaneous T2DM mouse) were treated with adjusting internal organs and dredging channel electroacupuncture (AODCEA) for 2 weeks. Another eight db/db mice were fed as T2DM group (T2DMG), and eight db/m mice were set as normal control group (NCG). Lipopolysaccharide (LPS), interleukin-6 (IL-6), and diabetes-related indicators, such as fasting blood glucose (FBG) and triglyceride (TG), were detected by enzyme-linked immune sorbent assay (ELISA). The V4 region of 16S rRNA gene was analyzed by Illumina sequencing to evaluate the effect of AODCEA on intestinal flora. The amount of short-chain fatty acids (SCFAs) in the feces were determined by gas chromatography-mass spectrometry (GC-MS). RESULTS Our results indicate that AODCEA treatment can reduce diabetes-related indicators. We observed the increased probiotics such as Blautia and Lactobacillus and decreased opportunist pathogens (Alistipes, Helicobacter, Prevotella) by AODCEA interventions. Importantly, the total amount of SCFAs in the feces of T2DM mice was promoted by AODCEA. Finally, obviously alleviated systemic inflammation was exhibited through AODCEA treatment by detection of lipopolysaccharide (LPS) and interleukin-6 (IL-6) in serum. CONCLUSION AODCEA can reshape the structure of intestinal flora, which can increase intestinal SCFAs, affect the circulating LPS level, and reduce the inflammatory response.
Collapse
Affiliation(s)
- Liying Zhang
- School of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Xinhua Chen
- Department of Acupuncture and Moxibustion, Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin, 130021, People’s Republic of China
| | - Haili Wang
- School of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Haipeng Huang
- School of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Mengyuan Li
- School of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Lin Yao
- School of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Shiqi Ma
- School of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Zhen Zhong
- School of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun, Jilin, 130117, People’s Republic of China
| | - Hongmei Yang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Jilin, 130117, People’s Republic of China
- Correspondence: Hongmei Yang; Hongfeng Wang Jilin Ginseng Academy, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, People’s Republic of ChinaTel/Fax +86 431 86763992 Email
| | - Hongfeng Wang
- Northeast Asia Institute of Chinese Medicine, Changchun University of Chinese Medicine, Jilin, 130117, People's Republic of China
- Hongfeng Wang Northeast Asia Institute of Chinese Medicine, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, People's Republic of ChinaTel/Fax +86 431 89912521 Email
| |
Collapse
|
33
|
Al-Jaber H, Al-Mansoori L, Elrayess MA. GATA-3 as a Potential Therapeutic Target for Insulin Resistance and Type 2 Diabetes Mellitus. Curr Diabetes Rev 2021; 17:169-179. [PMID: 32628587 DOI: 10.2174/1573399816666200705210417] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/09/2020] [Accepted: 06/11/2020] [Indexed: 11/22/2022]
Abstract
Impaired adipogenesis plays an important role in the development of obesity-associated insulin resistance and type 2 diabetes as it leads to ectopic fat deposition. The anti-adipogenic transcription factor GATA-3 was identified as one of the potential molecular targets responsible for the impairment of adipogenesis. The expression of GATA-3 is higher in insulinresistant obese individuals compared to BMI-matched insulin-sensitive counterparts. Adipose tissue inflammation is a crucial mediator of this process. Hyperglycemia mediates the activation of the immune system, partially through upregulation of GATA- 3, causing exacerbation of the inflammatory state associated with obesity. This review discusses the evidence supporting the inhibition of GATA-3 as a useful therapeutic strategy in obesity-associated insulin resistance and type 2 diabetes, through up-regulation adipogenesis and amelioration of the immune response.
Collapse
Affiliation(s)
- Hend Al-Jaber
- Biomedical Research Center, Qatar University, Doha, Qatar
| | | | | |
Collapse
|
34
|
Gharanei S, Shabir K, Brown JE, Weickert MO, Barber TM, Kyrou I, Randeva HS. Regulatory microRNAs in Brown, Brite and White Adipose Tissue. Cells 2020; 9:cells9112489. [PMID: 33207733 PMCID: PMC7696849 DOI: 10.3390/cells9112489] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/02/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs) constitute a class of short noncoding RNAs which regulate gene expression by targeting messenger RNA, inducing translational repression and messenger RNA degradation. This regulation of gene expression by miRNAs in adipose tissue (AT) can impact on the regulation of metabolism and energy homeostasis, particularly considering the different types of adipocytes which exist in mammals, i.e., white adipocytes (white AT; WAT), brown adipocytes (brown AT; BAT), and inducible brown adipocytes in WAT (beige or brite or brown-in-white adipocytes). Indeed, an increasing number of miRNAs has been identified to regulate key signaling pathways of adipogenesis in BAT, brite AT, and WAT by acting on transcription factors that promote or inhibit adipocyte differentiation. For example, MiR-328, MiR-378, MiR-30b/c, MiR-455, MiR-32, and MiR-193b-365 activate brown adipogenesis, whereas MiR-34a, MiR-133, MiR-155, and MiR-27b are brown adipogenesis inhibitors. Given that WAT mainly stores energy as lipids, whilst BAT mainly dissipates energy as heat, clarifying the effects of miRNAs in different types of AT has recently attracted significant research interest, aiming to also develop novel miRNA-based therapies against obesity, diabetes, and other obesity-related diseases. Therefore, this review presents an up-to-date comprehensive overview of the role of key regulatory miRNAs in BAT, brite AT, and WAT.
Collapse
Affiliation(s)
- Seley Gharanei
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Kiran Shabir
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
| | - James E. Brown
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
- School of Biosciences, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
| | - Martin O. Weickert
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Centre of Applied Biological & Exercise Sciences, Faculty of Health & Life Sciences, Coventry University, Coventry CV1 5FB, UK
| | - Thomas M. Barber
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
| | - Harpal S. Randeva
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
- Correspondence:
| |
Collapse
|
35
|
BMP7 overexpression in adipose tissue induces white adipogenesis and improves insulin sensitivity in ob/ob mice. Int J Obes (Lond) 2020; 45:449-460. [PMID: 33110143 DOI: 10.1038/s41366-020-00700-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 08/26/2020] [Accepted: 10/14/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND/OBJECTIVES During obesity, hypertrophic enlargement of white adipose tissue (WAT) promotes ectopic lipid deposition and development of insulin resistance. In contrast, WAT hyperplasia is associated with preservation of insulin sensitivity. The complex network of factors that regulates white adipogenesis is not fully understood. Bone morphogenic protein 7 (BMP7) can induce brown adipogenesis, but its role on white adipogenesis remains to be elucidated. Here, we assessed BMP7-mediated effects on white adipogenesis in ob/ob mice. METHODS BMP7 was overexpressed in either WAT or liver of ob/ob mice using adeno-associated viral (AAV) vectors. Analysis of gene expression, histological and morphometric alterations, and metabolites and hormones concentrations were carried out. RESULTS Overexpression of BMP7 in adipocytes of subcutaneous and visceral WAT increased fat mass, the proportion of small-size adipocytes and the expression of adipogenic and mature adipocyte genes, suggesting induction of adipogenesis irrespective of fat depot. These changes were associated with reduced hepatic steatosis and improved insulin sensitivity. In contrast, liver-specific overproduction of BMP7 did not promote WAT hyperplasia despite BMP7 circulating levels were similar to those achieved after genetic engineering of WAT. CONCLUSIONS This study unravels a new autocrine/paracrine role of BMP7 on white adipogenesis and highlights that BMP7 may modulate WAT plasticity and increase insulin sensitivity.
Collapse
|
36
|
Wueest S, Konrad D. The controversial role of IL-6 in adipose tissue on obesity-induced dysregulation of glucose metabolism. Am J Physiol Endocrinol Metab 2020; 319:E607-E613. [PMID: 32715746 DOI: 10.1152/ajpendo.00306.2020] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Interleukin (IL)-6 is a pleotropic cytokine with various physiological and pathophysiological functions in different cells and tissues. In cells residing within white adipose tissue, several, and sometimes conflicting, IL-6 actions have been described in the development of obesity-associated derangements of glucose metabolism. Herein, we aim to summarize opposing findings and discuss recent evidence that IL-6 signaling in adipose tissue is regulated in a depot and cell-specific manner.
Collapse
Affiliation(s)
- Stephan Wueest
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Daniel Konrad
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| |
Collapse
|
37
|
Jaganjac M, Milkovic L, Gegotek A, Cindric M, Zarkovic K, Skrzydlewska E, Zarkovic N. The relevance of pathophysiological alterations in redox signaling of 4-hydroxynonenal for pharmacological therapies of major stress-associated diseases. Free Radic Biol Med 2020; 157:128-153. [PMID: 31756524 DOI: 10.1016/j.freeradbiomed.2019.11.023] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/04/2019] [Accepted: 11/17/2019] [Indexed: 02/07/2023]
Abstract
Modern analytical methods combined with the modern concepts of redox signaling revealed 4-hydroxy-2-nonenal (4-HNE) as particular growth regulating factor involved in redox signaling under physiological and pathophysiological circumstances. In this review current knowledge of the relevance of 4-HNE as "the second messenger of reactive oxygen species" (ROS) in redox signaling of representative major stress-associated diseases is briefly summarized. The findings presented allow for 4-HNE to be considered not only as second messenger of ROS, but also as one of fundamental factors of the stress- and age-associated diseases. While standard, even modern concepts of molecular medicine and respective therapies in majority of these diseases target mostly the disease-specific symptoms. 4-HNE, especially its protein adducts, might appear to be the bioactive markers that would allow better monitoring of specific pathophysiological processes reflecting their complexity. Eventually that could help development of advanced integrative medicine approach for patients and the diseases they suffer from on the personalized basis implementing biomedical remedies that would optimize beneficial effects of ROS and 4-HNE to prevent the onset and progression of the illness, perhaps even providing the real cure.
Collapse
Affiliation(s)
- Morana Jaganjac
- Qatar Analytics & BioResearch Lab, Anti Doping Lab Qatar, Sport City Street, Doha, Qatar
| | - Lidija Milkovic
- Rudjer Boskovic Institute, Laboratory for Oxidative Stress, Div. of Molecular Medicine, Bijenicka 54, Zagreb, Croatia
| | - Agnieszka Gegotek
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland
| | - Marina Cindric
- University of Zagreb, School of Medicine, Div. of Pathology, University Hospital Centre Zagreb, Kispaticeva 12, Zagreb, Croatia
| | - Kamelija Zarkovic
- University of Zagreb, School of Medicine, Div. of Pathology, University Hospital Centre Zagreb, Kispaticeva 12, Zagreb, Croatia
| | - Elzbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland
| | - Neven Zarkovic
- Rudjer Boskovic Institute, Laboratory for Oxidative Stress, Div. of Molecular Medicine, Bijenicka 54, Zagreb, Croatia.
| |
Collapse
|
38
|
Dedual MA, Wueest S, Challa TD, Lucchini FC, Aeppli TRJ, Borsigova M, Mauracher AA, Vavassori S, Pachlopnik Schmid J, Blüher M, Konrad D. Obesity-Induced Increase in Cystatin C Alleviates Tissue Inflammation. Diabetes 2020; 69:1927-1935. [PMID: 32616516 DOI: 10.2337/db19-1206] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 06/20/2020] [Indexed: 11/13/2022]
Abstract
We recently demonstrated that removal of one kidney (uninephrectomy [UniNx]) in mice reduced high-fat diet (HFD)-induced adipose tissue inflammation, thereby improving adipose tissue and hepatic insulin sensitivity. Of note, circulating cystatin C (CysC) levels were increased in UniNx compared with sham-operated mice. Importantly, CysC may have anti-inflammatory properties, and circulating CysC levels were reported to positively correlate with obesity in humans and as shown here in HFD-fed mice. However, the causal relationship of such observation remains unclear. HFD feeding of CysC-deficient (CysC knockout [KO]) mice worsened obesity-associated adipose tissue inflammation and dysfunction, as assessed by proinflammatory macrophage accumulation. In addition, mRNA expression of proinflammatory mediators was increased, whereas markers of adipocyte differentiation were decreased. Similar to findings in adipose tissue, expression of proinflammatory cytokines was increased in liver and skeletal muscle of CysC KO mice. In line, HFD-induced hepatic insulin resistance and impairment of glucose tolerance were further aggravated in KO mice. Consistently, chow-fed CysC KO mice were more susceptible to lipopolysaccharide-induced adipose tissue inflammation. In people with obesity, circulating CysC levels correlated negatively with adipose tissue Hif1α as well as IL6 mRNA expression. Moreover, healthy (i.e., insulin-sensitive) subjects with obesity had significantly higher mRNA expression of CysC in white adipose tissue. In conclusion, CysC is upregulated under obesity conditions and thereby counteracts inflammation of peripheral insulin-sensitive tissues and, thus, obesity-associated deterioration of glucose metabolism.
Collapse
Affiliation(s)
- Mara A Dedual
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Stephan Wueest
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Tenagne D Challa
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Fabrizio C Lucchini
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Tim R J Aeppli
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Marcela Borsigova
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Andrea A Mauracher
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Division of Pediatric Immunology, University Children's Hospital, Zurich, Switzerland
| | - Stefano Vavassori
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Division of Pediatric Immunology, University Children's Hospital, Zurich, Switzerland
| | - Jana Pachlopnik Schmid
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Division of Pediatric Immunology, University Children's Hospital, Zurich, Switzerland
| | - Matthias Blüher
- Department of Medicine, Endocrinology and Diabetes, University of Leipzig, Leipzig, Germany
| | - Daniel Konrad
- Division of Pediatric Endocrinology and Diabetology, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| |
Collapse
|
39
|
Suppression of GATA-3 increases adipogenesis, reduces inflammation and improves insulin sensitivity in 3T3L-1 preadipocytes. Cell Signal 2020; 75:109735. [PMID: 32795510 DOI: 10.1016/j.cellsig.2020.109735] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/21/2020] [Accepted: 08/08/2020] [Indexed: 02/06/2023]
Abstract
Impaired adipogenesis plays an important role in the development of obesity-associated insulin resistance and type 2 diabetes. Adipose tissue inflammation is a crucial mediator of this process. GATA-3 plays important roles in adipogenesis and inflammation. The aim of this study is to investigate the impact of GATA-3 suppression on improving adipogenesis, lowering inflammation and reversing insulin resistance. GATA-3 levels were measured in subcutaneous (SC) and omental (OM) adipose tissues obtained from insulin sensitive (IS) and insulin resistant (IR) obese individuals during weight reduction surgeries. The effect of GATA-3 suppression on adipogenesis, expression of inflammatory cytokines and insulin resistance biomarkers was performed in 3T3L-1 mouse preadipocytes via transfection with GATA-3-specific DNAzyme. GATA-3 expression was higher in OM compared to SC adipose tissues and in stromal vascular fraction-derived differentiating preadipocytes from IR obese individuals compared to their IS counterparts. Suppression of GATA-3 expression in 3T3L-1 mouse preadipocytes with GATA-3 specific inhibitor reversed 4-hydroxynonenal-induced impaired adipogenesis and triggered changes in the expression of insulin signaling-related genes. GATA-3 inhibition also modulated the expression of IL-6 and IL-10 and lowered the expression of insulin resistance biomarkers (PAI-1 and resistin) and insulin resistance phosphoproteins (p-BAD, p-PTEN and p-GSK3β). Inhibiting GATA-3 improves adipocytes differentiation, modulates the secretion of inflammatory cytokines and improves insulin sensitivity in insulin resistant cells. Suppression of GATA-3 could be a promising tool to improve adipogenesis, restore insulin sensitivity and lower obesity-associated inflammation in insulin resistant individuals.
Collapse
|
40
|
Pyrina I, Chung KJ, Michailidou Z, Koutsilieris M, Chavakis T, Chatzigeorgiou A. Fate of Adipose Progenitor Cells in Obesity-Related Chronic Inflammation. Front Cell Dev Biol 2020; 8:644. [PMID: 32760729 PMCID: PMC7372115 DOI: 10.3389/fcell.2020.00644] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/26/2020] [Indexed: 12/16/2022] Open
Abstract
Adipose progenitor cells, or preadipocytes, constitute a small population of immature cells within the adipose tissue. They are a heterogeneous group of cells, in which different subtypes have a varying degree of commitment toward diverse cell fates, contributing to white and beige adipogenesis, fibrosis or maintenance of an immature cell phenotype with proliferation capacity. Mature adipocytes as well as cells of the immune system residing in the adipose tissue can modulate the function and differentiation potential of preadipocytes in a contact- and/or paracrine-dependent manner. In the course of obesity, the accumulation of immune cells within the adipose tissue contributes to the development of a pro-inflammatory microenvironment in the tissue. Under such circumstances, the crosstalk between preadipocytes and immune or parenchymal cells of the adipose tissue may critically regulate the differentiation of preadipocytes into white adipocytes, beige adipocytes, or myofibroblasts, thereby influencing adipose tissue expansion and adipose tissue dysfunction, including downregulation of beige adipogenesis and development of fibrosis. The present review will outline the current knowledge about factors shaping cell fate decisions of adipose progenitor cells in the context of obesity-related inflammation.
Collapse
Affiliation(s)
- Iryna Pyrina
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine Technische Universität Dresden, Dresden, Germany
| | - Kyoung-Jin Chung
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine Technische Universität Dresden, Dresden, Germany
| | - Zoi Michailidou
- Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Michael Koutsilieris
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine Technische Universität Dresden, Dresden, Germany.,Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom.,Paul Langerhans Institute Dresden of the Helmholtz Center Munich, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Antonios Chatzigeorgiou
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine Technische Universität Dresden, Dresden, Germany.,Department of Physiology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
41
|
Smith GI, Mittendorfer B, Klein S. Metabolically healthy obesity: facts and fantasies. J Clin Invest 2020; 129:3978-3989. [PMID: 31524630 DOI: 10.1172/jci129186] [Citation(s) in RCA: 326] [Impact Index Per Article: 81.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Although obesity is typically associated with metabolic dysfunction and cardiometabolic diseases, some people with obesity are protected from many of the adverse metabolic effects of excess body fat and are considered "metabolically healthy." However, there is no universally accepted definition of metabolically healthy obesity (MHO). Most studies define MHO as having either 0, 1, or 2 metabolic syndrome components, whereas many others define MHO using the homeostasis model assessment of insulin resistance (HOMA-IR). Therefore, numerous people reported as having MHO are not metabolically healthy, but simply have fewer metabolic abnormalities than those with metabolically unhealthy obesity (MUO). Nonetheless, a small subset of people with obesity have a normal HOMA-IR and no metabolic syndrome components. The mechanism(s) responsible for the divergent effects of obesity on metabolic health is not clear, but studies conducted in rodent models suggest that differences in adipose tissue biology in response to weight gain can cause or prevent systemic metabolic dysfunction. In this article, we review the definition, stability over time, and clinical outcomes of MHO, and discuss the potential factors that could explain differences in metabolic health in people with MHO and MUO - specifically, modifiable lifestyle factors and adipose tissue biology. Better understanding of the factors that distinguish people with MHO and MUO can produce new insights into mechanism(s) responsible for obesity-related metabolic dysfunction and disease.
Collapse
|
42
|
Aprile M, Cataldi S, Perfetto C, Ambrosio MR, Italiani P, Tatè R, Blüher M, Ciccodicola A, Costa V. In-Vitro-Generated Hypertrophic-Like Adipocytes Displaying PPARG Isoforms Unbalance Recapitulate Adipocyte Dysfunctions In Vivo. Cells 2020; 9:cells9051284. [PMID: 32455814 PMCID: PMC7290899 DOI: 10.3390/cells9051284] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/30/2022] Open
Abstract
Reduced neo-adipogenesis and dysfunctional lipid-overloaded adipocytes are hallmarks of hypertrophic obesity linked to insulin resistance. Identifying molecular features of hypertrophic adipocytes requires appropriate in vitro models. We describe the generation of a model of human hypertrophic-like adipocytes directly comparable to normal adipose cells and the pathologic evolution toward hypertrophic state. We generate in vitro hypertrophic cells from mature adipocytes, differentiated from human mesenchymal stem cells. Combining optical, confocal, and transmission electron microscopy with mRNA/protein quantification, we characterize this cellular model, confirming specific alterations also in subcutaneous adipose tissue. Specifically, we report the generation and morphological/molecular characterization of human normal and hypertrophic-like adipocytes. The latter displays altered morphology and unbalance between canonical and dominant negative (PPARGΔ5) transcripts of PPARG, paralleled by reduced expression of PPARγ targets, including GLUT4. Furthermore, the unbalance of PPARγ isoforms associates with GLUT4 down-regulation in subcutaneous adipose tissue of individuals with overweight/obesity or impaired glucose tolerance/type 2 diabetes, but not with normal weight or glucose tolerance. In conclusion, the hypertrophic-like cells described herein are an innovative tool for studying molecular dysfunctions in hypertrophic obesity and the unbalance between PPARγ isoforms associates with down-regulation of GLUT4 and other PPARγ targets, representing a new hallmark of hypertrophic adipocytes.
Collapse
Affiliation(s)
- Marianna Aprile
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
- Correspondence: (M.A.); (V.C.)
| | - Simona Cataldi
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
| | - Caterina Perfetto
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
| | - Maria Rosaria Ambrosio
- Department of Translational Medicine, University of Naples “Federico II” & URT “Genomic of Diabetes,” Institute of Experimental Endocrinology and Oncology “G. Salvatore,” CNR, Via Pansini 5, 80131 Naples, Italy;
| | - Paola Italiani
- Institute of Biochemistry and Cell Biology CNR, Via P. Castellino 111, 80131 Naples, Italy;
| | - Rosarita Tatè
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
| | - Matthias Blüher
- Department of Medicine, University of Leipzig, 4289 Leipzig, Germany;
| | - Alfredo Ciccodicola
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
- Department of Science and Technology, University of Naples “Parthenope,” 80131 Naples, Italy
| | - Valerio Costa
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
- Correspondence: (M.A.); (V.C.)
| |
Collapse
|
43
|
Han L, Zhao LH, Zhang ML, Li HT, Gao ZZ, Zheng XJ, Wang XM, Wu HR, Zheng YJ, Jiang XT, Ding QY, Yang HY, Jia WP, Tong XL. A Novel Antidiabetic Monomers Combination Alleviates Insulin Resistance Through Bacteria-Cometabolism-Inflammation Responses. Front Microbiol 2020; 11:173. [PMID: 32132984 PMCID: PMC7040028 DOI: 10.3389/fmicb.2020.00173] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 01/24/2020] [Indexed: 12/15/2022] Open
Abstract
The present study sought to examine the therapeutic effect of a novel antidiabetic monomer combination (AMC) in treating type 2 diabetes mellitus (T2DM); while also elucidating the potential functional mechanism. Male C57BL/6J mice were fed a high-fat diet (HFD) for 12 weeks to establish T2DM. The AMC group showed significant reduction in weight, fasting blood glucose (FBG), serum total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C), and experienced reduced insulin resistance based on oral glucose tolerance testing (OGTT) and hyperinsulinemic-euglycemic clamp testing (“gold standard” for determining in vivo insulin sensitivity). Further, AMC restored the altered intestinal flora by increasing the abundance of the beneficial bacteria Akkermansia, and decreasing the number of harmful bacteria, including Bacteroides, Odoribacter, Prevotella 9, Alistipes, and Parabacteroides. Components of the host-microbial metabolome were also significantly changed in the AMC group compared to the HFD group, including hydroxyphenyllactic acid, palmitoleic acid, dodecanoic acid, linoleic acid, and erucic acid. Furthermore, AMC was found to inhibit inflammation and suppress signaling pathways related to insulin resistance. Lastly, spearman correlation analysis revealed relationships between altered microbial community and co-metabolite levels, co-metabolites and inflammatory cytokines. Hence, the potential mechanism responsible for AMC-mediated alleviation of insulin resistance was suggested to be involved in modulation of bacteria-cometabolism-inflammation responses.
Collapse
Affiliation(s)
- Lin Han
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Lin-Hua Zhao
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Laboratory of Molecular and Biology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ming-Liang Zhang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hua-Ting Li
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Ze-Zheng Gao
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Beijing University of Chinese Medicine, Beijing, China
| | - Xiao-Jiao Zheng
- Center for Translational Medicine, and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xin-Miao Wang
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hao-Ran Wu
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Beijing University of Chinese Medicine, Beijing, China
| | - Yu-Jiao Zheng
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Beijing University of Chinese Medicine, Beijing, China
| | - Xiao-Tian Jiang
- Department of Endocrinology, Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, China
| | - Qi-You Ding
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Beijing University of Chinese Medicine, Beijing, China
| | - Hao-Yu Yang
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Beijing University of Chinese Medicine, Beijing, China
| | - Wei-Ping Jia
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiao-Lin Tong
- Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| |
Collapse
|
44
|
Long MH, Zhang C, Xu DQ, Fu WL, Gan XD, Li F, Wang Q, Xia W, Xu DG. PM 2.5 aggravates diabetes via the systemically activated IL-6-mediated STAT3/SOCS3 pathway in rats' liver. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113342. [PMID: 31676093 DOI: 10.1016/j.envpol.2019.113342] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 10/01/2019] [Accepted: 10/02/2019] [Indexed: 06/10/2023]
Abstract
PM2.5 exposure aggravates type 2 diabetes, in which inflammatory factors play an important role. In this study, we aimed to explore the mechanisms responsible for aggravating diabetes after PM2.5 exposure, and study the roles of inflammatory factors in insulin-resistant type 2 diabetes. Our study indicated that short-time PM2.5 exposure enhances insulin resistance in type 2 diabetic rats and significantly raises inflammatory factors, including IL-6, TNF-α, and MCP-1, in lungs. However, we found that of these inflammatory factors only IL-6 levels are elevated in blood, liver, adipose tissue, and macrophages, but not in skeletal muscle. IL-6 induced activation of the STAT3/SOCS3 pathway in liver, but not other downstream pathways including STAT1, ERK1/2, and PI3K. Both STAT3 inhibition and IL-6 neutralization effectively alleviated the disorders of glucose metabolism after PM2.5 exposure. Taken together, this suggests that the systemic increase in IL-6 may play an important role in the deterioration of the type 2 diabetes via IL-6/STAT3/SOCS3 pathway in liver after short-time exposure to PM2.5. Besides, we unexpectedly found a stronger resistance to the PM2.5 exposure-induced increase in IL-6 in skeleton muscle than those of many other tissues.
Collapse
Affiliation(s)
- Min-Hui Long
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China; The South China Normal University, Guangzhou, 510631, PR China
| | - Chao Zhang
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China
| | - Dong-Qun Xu
- Institute of Products Related with Environment and Health, China Center for Diseases Control, Beijing, 100080, PR China
| | - Wen-Liang Fu
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China
| | - Xiang-Dong Gan
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China; The South China Normal University, Guangzhou, 510631, PR China
| | - Fei Li
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China
| | - Qin Wang
- Institute of Products Related with Environment and Health, China Center for Diseases Control, Beijing, 100080, PR China
| | - Wenrong Xia
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China
| | - Dong-Gang Xu
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China.
| |
Collapse
|
45
|
Buie JJ, Watson LS, Smith CJ, Sims-Robinson C. Obesity-related cognitive impairment: The role of endothelial dysfunction. Neurobiol Dis 2019; 132:104580. [PMID: 31454547 PMCID: PMC6834913 DOI: 10.1016/j.nbd.2019.104580] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 07/27/2019] [Accepted: 08/20/2019] [Indexed: 12/16/2022] Open
Abstract
Obesity is a global pandemic associated with macro- and microvascular endothelial dysfunction. Microvascular endothelial dysfunction has recently emerged as a significant risk factor for the development of cognitive impairment. In this review, we present evidence from clinical and preclinical studies supporting a role for obesity in cognitive impairment. Next, we discuss how obesity-related hyperinsulinemia/insulin resistance, systemic inflammation, and gut dysbiosis lead to cognitive impairment through induction of endothelial dysfunction and disruption of the blood brain barrier. Finally, we outline the potential clinical utility of dietary interventions, exercise, and bariatric surgery in circumventing the impacts of obesity on cognitive function.
Collapse
Affiliation(s)
- Joy Jones Buie
- WISSDOM Center, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Luke S Watson
- Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, USA; Molecular and Cellular Biology and Pathobiology Program, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Crystal J Smith
- Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Neurosciences, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Catrina Sims-Robinson
- Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, USA; Molecular and Cellular Biology and Pathobiology Program, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Neurosciences, Medical University of South Carolina, Charleston, SC 29425, USA.
| |
Collapse
|
46
|
Raees A, Bakhamis A, Mohamed-Ali V, Bashah M, Al-Jaber M, Abraham D, Clapp LH, Orie NN. Altered cyclooxygenase-1 and enhanced thromboxane receptor activities underlie attenuated endothelial dilatory capacity of omental arteries in obesity. Life Sci 2019; 239:117039. [PMID: 31704447 DOI: 10.1016/j.lfs.2019.117039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 01/05/2023]
Abstract
AIMS Obesity is a risk factor for endothelial dysfunction, the severity of which is likely to vary depending on extent and impact of adiposity on the vasculature. This study investigates the roles of cyclooxygenase isoforms and thromboxane receptor activities in the differential endothelial dilatory capacities of arteries derived from omental and subcutaneous adipose tissues in obesity. MAIN METHODS Small arteries were isolated from omental and subcutaneous adipose tissues obtained from consented morbidly obese patients (n = 65, BMI 45 ± 6 kg m-2 [Mean ± SD]) undergoing bariatric surgery. Relaxation to acetylcholine was studied by wire myography in the absence or presence of indomethacin (10 μM, cyclooxygenase inhibitor), FR122047 (1 μM, cyclooxygenase-1 inhibitor), Celecoxib (4 μM, cyclooxygenase-2 inhibitor), Nω-Nitro-L-arginine methyl ester (L-NAME, 100 μM, nitric oxide synthase inhibitor) or combination of apamin (0.5 μM) and charybdotoxin (0.1 μM) that together inhibit endothelium-derived hyperpolarizing factor (EDHF). Contractions to U46619 (thromboxane A2 mimetic) were also studied. KEY FINDINGS Acetylcholine relaxation was significantly attenuated in omental compared with subcutaneous arteries from same patients (p < 0.01). Indomethacin (p < 0.01) and FR122047 (p < 0.001) but not Celecoxib significantly improved the omental arteriolar relaxation. Cyclooxygenase-1 mRNA and U46619 contractions were both increased in omental compared with subcutaneous arteries (p < 0.05). L-NAME comparably inhibited acetylcholine relaxation in both arteries, while apamin+charybdotoxin were less effective in omental compared with subcutaneous arteries. SIGNIFICANCE The results show that the depot-specific reduction in endothelial dilatory capacity of omental compared with subcutaneous arteries in obesity is in large part due to altered cyclooxygenase-1 and enhanced thromboxane receptor activities, which cause EDHF deficiency.
Collapse
Affiliation(s)
- Asmaa Raees
- Qatar Analytics and BioResearch Lab, Anti-Doping Lab Qatar, Qatar
| | - Aysha Bakhamis
- Qatar Analytics and BioResearch Lab, Anti-Doping Lab Qatar, Qatar
| | | | - Moataz Bashah
- Metabolic and Bariatric Surgery Department, Hamad Medical Corporation, Doha, Qatar
| | - Mashael Al-Jaber
- Qatar Analytics and BioResearch Lab, Anti-Doping Lab Qatar, Qatar
| | - David Abraham
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, UK
| | - Lucie H Clapp
- Institute of Cardiovascular Sciences, University College London, UK
| | - Nelson N Orie
- Qatar Analytics and BioResearch Lab, Anti-Doping Lab Qatar, Qatar.
| |
Collapse
|
47
|
Al-Sulaiti H, Diboun I, Agha MV, Mohamed FFS, Atkin S, Dömling AS, Elrayess MA, Mazloum NA. Metabolic signature of obesity-associated insulin resistance and type 2 diabetes. J Transl Med 2019; 17:348. [PMID: 31640727 PMCID: PMC6805293 DOI: 10.1186/s12967-019-2096-8] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 10/11/2019] [Indexed: 12/17/2022] Open
Abstract
Background Obesity is associated with an increased risk of insulin resistance and type 2 diabetes mellitus (T2DM). However, some obese individuals maintain their insulin sensitivity and exhibit a lower risk of associated comorbidities. The underlying metabolic pathways differentiating obese insulin sensitive (OIS) and obese insulin resistant (OIR) individuals remain unclear. Methods In this study, 107 subjects underwent untargeted metabolomics of serum samples using the Metabolon platform. Thirty-two subjects were lean controls whilst 75 subjects were obese including 20 OIS, 41 OIR, and 14 T2DM individuals. Results Our results showed that phospholipid metabolites including choline, glycerophosphoethanolamine and glycerophosphorylcholine were significantly altered from OIS when compared with OIR and T2DM individuals. Furthermore, our data confirmed changes in metabolic markers of liver disease, vascular disease and T2DM, such as 3-hydroxymyristate, dimethylarginine and 1,5-anhydroglucitol, respectively. Conclusion This pilot data has identified phospholipid metabolites as potential novel biomarkers of obesity-associated insulin sensitivity and confirmed the association of known metabolites with increased risk of obesity-associated insulin resistance, with possible diagnostic and therapeutic applications. Further studies are warranted to confirm these associations in prospective cohorts and to investigate their functionality.
Collapse
Affiliation(s)
- Haya Al-Sulaiti
- Department of Drug Design, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Ilhame Diboun
- Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | | | | | - Stephen Atkin
- Weill Cornell Medicine-Qatar, Doha, Qatar.,Royal College of Surgeons, Ireland, Bahrain
| | - Alex S Dömling
- Department of Drug Design, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | | | | |
Collapse
|
48
|
Scheja L, Heeren J. The endocrine function of adipose tissues in health and cardiometabolic disease. Nat Rev Endocrinol 2019; 15:507-524. [PMID: 31296970 DOI: 10.1038/s41574-019-0230-6] [Citation(s) in RCA: 338] [Impact Index Per Article: 67.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/17/2019] [Indexed: 12/16/2022]
Abstract
In addition to their role in glucose and lipid metabolism, adipocytes respond differentially to physiological cues or metabolic stress by releasing endocrine factors that regulate diverse processes, such as energy expenditure, appetite control, glucose homeostasis, insulin sensitivity, inflammation and tissue repair. Both energy-storing white adipocytes and thermogenic brown and beige adipocytes secrete hormones, which can be peptides (adipokines), lipids (lipokines) and exosomal microRNAs. Some of these factors have defined targets; for example, adiponectin and leptin signal through their respective receptors that are expressed in multiple organs. For other adipocyte hormones, receptors are more promiscuous or remain to be identified. Furthermore, many of these hormones are also produced by other organs and tissues, which makes defining the endocrine contribution of adipose tissues a challenge. In this Review, we discuss the functional role of adipose tissue-derived endocrine hormones for metabolic adaptations to the environment and we highlight how these factors contribute to the development of cardiometabolic diseases. We also cover how this knowledge can be translated into human therapies. In addition, we discuss recent findings that emphasize the endocrine role of white versus thermogenic adipocytes in conditions of health and disease.
Collapse
Affiliation(s)
- Ludger Scheja
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Joerg Heeren
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| |
Collapse
|
49
|
Jiang N, Li Y, Shu T, Wang J. Cytokines and inflammation in adipogenesis: an updated review. Front Med 2019; 13:314-329. [PMID: 30066061 DOI: 10.1007/s11684-018-0625-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 12/12/2017] [Indexed: 02/07/2023]
Abstract
The biological relevance of cytokines is known for more than 20 years. Evidence suggests that adipogenesis is one of the biological events involved in the regulation of cytokines, and pro-inflammatory cytokines (e.g., TNFα and IL-1β) inhibit adipogenesis through various pathways. This inhibitory effect can constrain the hyperplastic expandability of adipose tissues. Meanwhile, chronic low-grade inflammation is commonly observed in obese populations. In some individuals, the impaired ability of adipose tissues to recruit new adipocytes to adipose depots during overnutrition results in adipocyte hypertrophy, ectopic lipid accumulation, and insulin resistance. Intervention studies showed that pro-inflammatory cytokine antagonists improve metabolism in patients with metabolic syndrome. This review focuses on the cytokines currently known to regulate adipogenesis under physiological and pathophysiological circumstances. Recent studies on how inhibited adipogenesis leads to metabolic disorders were summarized. Although the interplay of cytokines and lipid metabolism is yet incompletely understood, cytokines represent a class of potential therapeutic targets in the treatment of metabolic disorders.
Collapse
Affiliation(s)
- Ning Jiang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, 100730, China
| | - Yao Li
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, 100730, China
| | - Ting Shu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, 100730, China
| | - Jing Wang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, 100730, China.
| |
Collapse
|
50
|
Monteiro L, Pereira JADS, Palhinha L, Moraes‐Vieira PMM. Leptin in the regulation of the immunometabolism of adipose tissue‐macrophages. J Leukoc Biol 2019; 106:703-716. [DOI: 10.1002/jlb.mr1218-478r] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/19/2019] [Accepted: 04/26/2019] [Indexed: 12/13/2022] Open
Affiliation(s)
- Lauar Monteiro
- Laboratory of ImmunometabolismDepartment of Genetics, Evolution, Microbiology and ImmunologyInstitute of BiologyUniversity of Campinas Sao Paulo Brazil
| | - Jéssica Aparecida da Silva Pereira
- Laboratory of ImmunometabolismDepartment of Genetics, Evolution, Microbiology and ImmunologyInstitute of BiologyUniversity of Campinas Sao Paulo Brazil
- Department of ImmunologyInstitute of Biomedical SciencesUniversity of Sao Paulo Sao Paulo Brazil
| | - Lohanna Palhinha
- Laboratory of ImmunopharmacologyOswaldo Cruz InstituteOswaldo Cruz Foundation (FIOCRUZ) Rio de Janeiro Rio de Janeiro Brazil
| | - Pedro Manoel M. Moraes‐Vieira
- Laboratory of ImmunometabolismDepartment of Genetics, Evolution, Microbiology and ImmunologyInstitute of BiologyUniversity of Campinas Sao Paulo Brazil
- Department of ImmunologyInstitute of Biomedical SciencesUniversity of Sao Paulo Sao Paulo Brazil
| |
Collapse
|