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Liang D, Liu L, Qi Y, Nan F, Huang J, Tang S, Tang J, Chen N. Jin-Gui-Shen-Qi Wan alleviates fibrosis in mouse diabetic nephropathy via MHC class II. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117745. [PMID: 38228231 DOI: 10.1016/j.jep.2024.117745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 12/30/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Jin-Gui-Shen-Qi Wan (JGSQW) is a traditional Chinese medicine formula that has been traditionally used to alleviate urinary system ailments such as frequent urination and polyuria. Clinical studies have indicated that when combined with hypoglycaemic drugs, JGSQW exhibits a synergistic effect and can improve diabetic nephropathy (DN), yet its underlying mechanism and targets remain unclear. AIM OF THE STUDY This study aims to investigate the therapeutic efficacy of JGSQW and its underlying mechanisms using a DN db/db mouse model. MATERIALS AND METHODS Ultrahigh-performance liquid chromatography coupled with mass spectrometry was utilized to analyse the primary active compounds, blood levels, and pharmacokinetics of JGSQW. Additionally, the therapeutic effects of JGSQW and metformin on blood glucose levels, lipid levels, renal function, and renal pathology in diabetic nephropathy mice were investigated using a db/db mouse model. Proteomic analysis was carried out to identify the primary target of JGSQW in treating DN. The mechanism of action was verified by western blotting, immunohistochemistry, and immunofluorescence. Then, molecular docking and molecular dynamics, transfection, drug affinity responsive target stability (DARTS) assay and cell thermal migration assay (CETSA) further validated the targeted binding effect. RESULTS JGSQW combined with metformin significantly improved the blood glucose levels, blood lipids, renal function, and renal pathology of DN mice. JGSQW mainly exerted its therapeutic effect on DN by targeting major histocompatibility complex class II (MHC class II) molecules. Immunohistochemistry results showed that JGSQW inhibited the expression of collagen I, fibronectin, and alpha smooth muscle actin (α-SMA) expression. Immunofluorescence and Western blot results showed that JGSQW inhibited the expression of H2-Ab1 and H2-Aa, which are MHC class II molecules, thereby suppressing CD4+ T-cell infiltration and improving diabetic kidney fibrosis. The binding ability of paeoniflorin to H2-Aa was predicted and verified by molecular, DARTS, and CETSA assays. Treatment with 80 μM paeoniflorin effectively alleviated high glucose-induced injury in the MPC-5 injury model. H2-Aa was overexpressed at this model concentration, and Western blotting further confirmed that paeoniflorin reduced glomerular podocyte fibrosis by regulating H2-Aa. CONCLUSIONS JGSQW combined with metformin may have a synergistic effect to alleviates renal fibrosis in diabetic nephropathy by downregulating immune complex MHC class II molecules and attenuating the antigen presentation effect of MHC class II on CD4.
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Affiliation(s)
- Dan Liang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Lu Liu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Yulin Qi
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Feng Nan
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Ju Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Shiyun Tang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Jianyuan Tang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Nianzhi Chen
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China.
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Lin H, Ao H, Guo G, Liu M. The Role and Mechanism of Metformin in Inflammatory Diseases. J Inflamm Res 2023; 16:5545-5564. [PMID: 38026260 PMCID: PMC10680465 DOI: 10.2147/jir.s436147] [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: 08/19/2023] [Accepted: 11/17/2023] [Indexed: 12/01/2023] Open
Abstract
Metformin is a classical drug used to treat type 2 diabetes. With the development of research on metformin, it has been found that metformin also has several advantages aside from its hypoglycemic effect, such as anti-inflammatory, anti-aging, anti-cancer, improving intestinal flora, and other effects. The prevention of inflammation is critical because chronic inflammation is associated with numerous diseases of considerable public health. Therefore, there has been growing interest in the role of metformin in treating various inflammatory conditions. However, the precise anti-inflammatory mechanisms of metformin were inconsistent in the reported studies. Thus, this review aims to summarize various currently known possible mechanisms of metformin involved in inflammatory diseases and provide references for the clinical application of metformin.
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Affiliation(s)
- Huan Lin
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
| | - Haiyong Ao
- Jiangxi Key Laboratory of Nanobiomaterials & School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi, People’s Republic of China
| | - Guanghua Guo
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
| | - Mingzhuo Liu
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
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Liu X, Yu P, Xu Y, Wang Y, Chen J, Tang F, Hu Z, Zhou J, Liu L, Qiu W, Ye Y, Jia Y, Yao W, Long J, Zeng Z. Metformin induces tolerogenicity of dendritic cells by promoting metabolic reprogramming. Cell Mol Life Sci 2023; 80:283. [PMID: 37688662 PMCID: PMC10492886 DOI: 10.1007/s00018-023-04932-3] [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: 05/25/2023] [Revised: 08/13/2023] [Accepted: 08/21/2023] [Indexed: 09/11/2023]
Abstract
Dendritic cells (DCs) can mediate immune responses or immune tolerance depending on their immunophenotype and functional status. Remodeling of DCs' immune functions can develop proper therapeutic regimens for different immune-mediated diseases. In the immunopathology of autoimmune diseases (ADs), activated DCs notably promote effector T-cell polarization and exacerbate the disease. Recent evidence indicates that metformin can attenuate the clinical symptoms of ADs due to its anti-inflammatory properties. Whether and how the therapeutic effects of metformin on ADs are associated with DCs remain unknown. In this study, metformin was added to a culture system of LPS-induced DC maturation. The results revealed that metformin shifted DC into a tolerant phenotype, resulting in reduced surface expression of MHC-II, costimulatory molecules and CCR7, decreased levels of proinflammatory cytokines (TNF-α and IFN-γ), increased level of IL-10, upregulated immunomodulatory molecules (ICOSL and PD-L) and an enhanced capacity to promote regulatory T-cell (Treg) differentiation. Further results demonstrated that the anti-inflammatory effects of metformin in vivo were closely related to remodeling the immunophenotype of DCs. Mechanistically, metformin could mediate the metabolic reprogramming of DCs through FoxO3a signaling pathways, including disturbing the balance of fatty acid synthesis (FAS) and fatty acid oxidation (FAO), increasing glycolysis but inhibiting the tricarboxylic acid cycle (TAC) and pentose phosphate pathway (PPP), which resulted in the accumulation of fatty acids (FAs) and lactic acid, as well as low anabolism in DCs. Our findings indicated that metformin could induce tolerance in DCs by reprogramming their metabolic patterns and play anti-inflammatory roles in vitro and in vivo.
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Affiliation(s)
- Xianmei Liu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
- Department of Interventional Radiology, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, People's Republic of China
| | - Peng Yu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Yujun Xu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Yun Wang
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Jin Chen
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Fuzhou Tang
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Zuquan Hu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, 550004, Guizhou, People's Republic of China
- State Key Laboratory of Functions & Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550004, People's Republic of China
| | - Jing Zhou
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Lina Liu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Wei Qiu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Yuannong Ye
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Yi Jia
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Weijuan Yao
- Hemorheology Center, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China.
| | - Jinhua Long
- Department of Head & Neck, Affiliated Tumor Hospital of Guizhou Medical University, Guiyang, 550004, People's Republic of China.
| | - Zhu Zeng
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China.
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China.
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, 550004, Guizhou, People's Republic of China.
- State Key Laboratory of Functions & Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550004, People's Republic of China.
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Class I MHC Polymorphisms Associated with Type 2 Diabetes in the Mexican Population. Genes (Basel) 2022; 13:genes13050772. [PMID: 35627158 PMCID: PMC9140925 DOI: 10.3390/genes13050772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/16/2022] [Accepted: 04/23/2022] [Indexed: 01/27/2023] Open
Abstract
Type 2 diabetes (T2D) has been linked to the expression of Human Leukocyte Antigens, principally to the Major Histocompatibility Complex Class II, with only scarce reports of Major Histocompatibility Complex Class I in specific populations. The objective of the present work was to explore the presence of polymorphisms in the MHC Class I related to T2D in the Mexican population using the Genome-Wide Association Studies Slim Initiative in Genomic Medicine of the Americas (GWAS SIGMA) database. This database contains information on 3848 Mexican individuals with T2D and 4366 control individuals from the same population without a clinical or hereditary history of the disease. The searching criteria considered a p-value of <0.005 and an odds ratio (OR) of >1.0. Ten novel, statistically significant nucleotide variants were identified: four polymorphisms associated with HLA-A (A*03:01:01:01) and six with HLA-C (C*01:02:01:01). These alleles have a high prevalence in Latin American populations and could potentially be associated with autoimmunity mechanisms related to the development of T2D complications.
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Tsuji G, Hashimoto-Hachiya A, Yen VH, Takemura M, Yumine A, Furue K, Furue M, Nakahara T. Metformin inhibits IL-1β secretion via impairment of NLRP3 inflammasome in keratinocytes: implications for preventing the development of psoriasis. Cell Death Discov 2020; 6:11. [PMID: 32194991 PMCID: PMC7055596 DOI: 10.1038/s41420-020-0245-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 02/14/2020] [Accepted: 02/14/2020] [Indexed: 12/18/2022] Open
Abstract
Psoriasis is a systemic inflammatory disease significantly associated with comorbidities including type 2 diabetes mellitus (T2DM). Metformin is utilized as a first-line agent for treating T2DM. Although metformin reportedly inhibits mature IL-1β secretion via NLRP3 inflammasome in macrophages of T2DM patients, it remains unclear whether it affects skin inflammation in psoriasis. To test this, we analysed normal human epidermal keratinocytes (NHEKs), a major skin component, stimulated with the key mediators of psoriasis development, TNF-α and IL-17A. This stimulation induced the upregulation of pro-IL-1β mRNA and protein levels, and subsequently mature IL-1β secretion, which was inhibited by metformin treatment. To further reveal the mechanism involved, we examined how metformin treatment affected NLRP3 inflammasome activated by TNF-α and IL-17A stimulation. We found that this treatment downregulated caspase-1 expression, a key mediator of NLRP3 inflammasome. Furthermore, inhibitors of AMPK and SIRT1 abrogated the downregulation of caspase-1 induced by metformin treatment, indicating that AMPK and SIRT1 are essential for the inhibitory effect on NLRP3 inflammasome in NHEKs. As IL-1β stimulation induced upregulation of IL-36γ, CXCL1, CXCL2, CCL20, S100A7, S100A8 and S100A9 mRNA and protein levels in NHEKs, we examined whether metformin treatment affects such gene expression. Metformin treatment inhibited upregulation of IL-36γ, CXCL1, CXCL2, CCL20, S100A7, S100A8 and S100A9 mRNA and protein levels induced by TNF-α and IL-17A stimulation. Finally, we examined whether metformin administration affected psoriasis development in an imiquimod-induced mouse psoriasis model. Oral metformin treatment significantly decreased ear thickness, epidermal hyperplasia and inflammatory cell infiltration. A cytokine profile in the epidermis under metformin treatment showed that IL-1β, Cxcl1, Cxcl2, S100a7, S100a8 and S100A9 mRNA levels were downregulated compared with control levels. These results indicate that metformin administration prevented psoriasis development in vivo. Collectively, our findings suggest that metformin-mediated anti-psoriatic effects on the skin have the potential for treating psoriasis in T2DM patients.
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Affiliation(s)
- Gaku Tsuji
- Research and Clinical Center for Yusho and Dioxin, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
| | - Akiko Hashimoto-Hachiya
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
| | - Vu Hai Yen
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
| | - Masaki Takemura
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
| | - Ayako Yumine
- Research and Clinical Center for Yusho and Dioxin, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
| | - Kazuhisa Furue
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
| | - Masutaka Furue
- Research and Clinical Center for Yusho and Dioxin, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
- Division of Skin Surface Sensing, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
| | - Takeshi Nakahara
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
- Division of Skin Surface Sensing, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashiku, Fukuoka, 812-8582 Japan
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Meziane W, Mekkaoui Z, Hai I, Kacimi K, Djilali K, Touil-Boukoffa C, Lefranc G, Fernandez A, Lamb N, Mennechet F, Aribi M. Combination of metformin with sodium selenite induces a functional phenotypic switch of human GM-CSF monocyte-derived macrophages. Int Immunopharmacol 2019; 73:212-224. [PMID: 31108386 DOI: 10.1016/j.intimp.2019.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 04/03/2019] [Accepted: 05/04/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES We evaluated the effects of metformin (Met, 1,1‑dimethylbiguanide hydrochloride) combined or not with sodium selenite (Ss, Na2SeO3) on the functional activities of LPS-activated GM-CSF monocyte-derived macrophages (GM-MDM). MATERIALS AND METHODS Human GM-MDMs from three healthy donors were treated with Met or Ss alone, or with the combination of Met and Ss, and assayed for various biological activities and cytokines expression. RESULTS Met alone and Ss alone had significantly different effects on phagocytosis and killing capacities and IL-β production, but had similar effects on the downregulation of inducible nitric oxide synthase (iNOS) activity, relative nicotinamide adenine dinucleotide reduced (NADH) dehydrogenase (Complex I), intracellular free calcium ions (ifCa2+), and on the upregulation of arginase activity. Additionally, iNOS activity-to-arginase activity ratio was downregulated in Met or Ss treated-GM-MDMs, and, conversely, upregulated in GM-MDMs treated with Met + Ss in combination, indicating that arginase activity dominates that of iNOS when the two treatments are associated. Moreover, combination of Met with Ss significantly upregulated hydrogen peroxide (H2O2) production and phagocytic capacity, but significantly downregulated the production of IL-1β, iNOS activity and killing capacity. On the contrary, we show that Met alone induced significant downregulation of phagocytic capacity and slight upregulation of killing capacity. Nevertheless, Ss seems to accentuate the effect of Met on the downregulation of NO production, as well as to reverse its effect on both phagocytic and killing capacities. On the other hand, all treatments induced a sharp decrease in relative levels of NADH dehydrogenase, and a marked decrease in the levels of ifCa2+. Finally, we found that GM-MDMs treated with Met or Ss, or Met combined with Ss exhibited different functional activation phenotypes, as indicated by the surface expression of co-stimulatory and cell activation and presentation molecules CD14, CD80, CD86 and HLA-DR. CONCLUSIONS Our results demonstrated that Met/Ss combination can play an important role in the modulation of functional activities of human LPS-activated GM-MDMs. Additionally, the overall effects of Met and the induction of "M2" GM-MDMs-associated arginase could be influenced by its combination with Ss.
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Affiliation(s)
- Warda Meziane
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Zineb Mekkaoui
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Ismahane Hai
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Kamila Kacimi
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Khuira Djilali
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Chafia Touil-Boukoffa
- Cytokines and NO Synthases Team, Laboratory of Cellular and Molecular Biology (LBCM), Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene (USTHB), BP 32 El-Alia Bab-Ezzouar, Algiers, Algeria
| | - Gérard Lefranc
- Institut de Génétique Humaine, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Anne Fernandez
- Institut de Génétique Humaine, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Ned Lamb
- Institut de Génétique Humaine, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Franck Mennechet
- Institut de Génétique Moléculaire de Montpellier (IGMM) - UMR5535, CNRS et Université de Montpellier, France
| | - Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria.
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Majdoubi A, Kishta OA, Thibodeau J. Role of antigen presentation in the production of pro-inflammatory cytokines in obese adipose tissue. Cytokine 2016; 82:112-21. [PMID: 26854212 DOI: 10.1016/j.cyto.2016.01.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 01/27/2016] [Accepted: 01/27/2016] [Indexed: 02/06/2023]
Abstract
Type II diabetes regroups different physiological anomalies that ultimately lead to low-grade chronic inflammation, insulin resistance and loss of pancreatic β-cells. Obesity is one of the best examples of such a condition that can develop into Metabolic Syndrome, causing serious health problems of great socio-economic consequences. The pathological outcome of obesity has a genetic basis and depends on the delicate balance between pro- and anti-inflammatory effectors of the immune system. The causal link between obesity and inflammation is well established. While innate immunity plays a key role in the development of a pro-inflammatory state in obese adipose tissues, it has now become clear that adaptive immune cells are also involved and participate in the cascade of events that lead to metabolic perturbations. The efficacy of some immunotherapeutic protocols in reducing the symptoms of obesity-driven metabolic syndrome in mice implicated all arms of the immune response. Recently, the production of pathogenic immunoglobulins and pro-inflammatory cytokines by B and T lymphocytes suggested an auto-immune basis for the establishment of a non-healthy obese state. Understanding the cellular landscape of obese adipose tissues and how immune cells sustain chronic inflammation holds the key to the development of targeted therapies. In this review, we emphasize the role of antigen-presenting cells and MHC molecules in obese adipose tissue and the general contribution of the adaptive arm of the immune system in inflammation-induced insulin resistance.
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Affiliation(s)
- Abdelilah Majdoubi
- Laboratoire d'Immunologie Moléculaire, Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Québec, Canada
| | - Osama A Kishta
- Laboratoire d'Immunologie Moléculaire, Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Québec, Canada
| | - Jacques Thibodeau
- Laboratoire d'Immunologie Moléculaire, Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Québec, Canada.
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