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Zhou H, Gizlenci M, Xiao Y, Martin F, Nakamori K, Zicari EM, Sato Y, Tullius SG. Obesity-associated Inflammation and Alloimmunity. Transplantation 2024:00007890-990000000-00856. [PMID: 39192462 DOI: 10.1097/tp.0000000000005183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
Obesity is a worldwide health problem with a rapidly rising incidence. In organ transplantation, increasing numbers of patients with obesity accumulate on waiting lists and undergo surgery. Obesity is in general conceptualized as a chronic inflammatory disease, potentially impacting alloimmune response and graft function. Here, we summarize our current understanding of cellular and molecular mechanisms that control obesity-associated adipose tissue inflammation and provide insights into mechanisms affecting transplant outcomes, emphasizing on the beneficial effects of weight loss on alloimmune responses.
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Affiliation(s)
- Hao Zhou
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Merih Gizlenci
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Department of General, Visceral, Cancer and Transplant Surgery, University Hospital of Cologne, Cologne, Germany
| | - Yao Xiao
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Friederike Martin
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Department of Surgery, CVK/CCM, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Keita Nakamori
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Department of Urology, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Elizabeth M Zicari
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Faculté de Pharmacie, Université Paris Cité, Paris, France
| | - Yuko Sato
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Stefan G Tullius
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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2
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Jamal N, Hollabaugh W, Scott L, Takkouche S. Unravelling the ties that bind: The intersection of obesity, osteoarthritis, and inflammatory pathways with emphasis on glucagon-like peptide-1 agonists. Clin Obes 2024:e12700. [PMID: 39152660 DOI: 10.1111/cob.12700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 07/21/2024] [Indexed: 08/19/2024]
Abstract
This narrative review article explores the complex interplay between obesity, osteoarthritis, and their associated inflammatory cascades, offering a deeper understanding of the underlying of mechanisms of inflammation and potential therapeutic interventions targeting both diseases. Through examination of the shared inflammatory pathway of obesity and osteoarthritis, our objective is to directly elucidate the relationship between these two conditions, highlighting the promising role of glucagon-like peptide-1 agonists in modulating inflammation and its therapeutic implications for patients with obesity and osteoarthritis.
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Affiliation(s)
- Naadir Jamal
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - William Hollabaugh
- Department of Orthopaedic Surgery, Division of Sports Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Leon Scott
- Department of Orthopaedic Surgery, Division of Sports Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sahar Takkouche
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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3
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Pinho ACO, Barbosa P, Lazaro A, Tralhão JG, Pereira MJ, Paiva A, Laranjeira P, Carvalho E. Identification and characterization of circulating and adipose tissue infiltrated CD20 +T cells from subjects with obesity that undergo bariatric surgery. Immunol Lett 2024; 269:106911. [PMID: 39147242 DOI: 10.1016/j.imlet.2024.106911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 08/10/2024] [Accepted: 08/12/2024] [Indexed: 08/17/2024]
Abstract
T cells play critical roles in adipose tissue (AT) inflammation. The role of CD20+T cell in AT dysfunction and their contributing to insulin resistance (IR) and type 2 diabetes progression, is not known. The aim was to characterize CD20+T cells in omental (OAT), subcutaneous (SAT) and peripheral blood (PB) from subjects with obesity (OB, n = 42), by flow cytometry. Eight subjects were evaluated before (T1) and 12 months post (T2) bariatric/metabolic surgery (BMS). PB from subjects without obesity (nOB, n = 12) was also collected. Higher percentage of CD20+T cells was observed in OAT, compared to PB or SAT, in OB-T1. CD20 expression by PB CD4+T cells was inversely correlated with adiposity markers, while follicular-like CD20+T cells were positively correlated with impaired glucose tolerance (increased HbA1c). Notably, among OB-T1, IR establishment was marked by a lower percentage and absolute number of PB CD20+T cells, compared nOB. Obesity was associated with higher percentage of activated CD20+T cells; however, OAT-infiltrated CD20+T cells from OB-T1 with diabetes displayed the lowest activation. CD20+T cells infiltrating OAT from OB-T1 displayed a phenotype towards IFN-γ-producing Th1 and Tc1 cells. After BMS, the percentage of PB CD4+CD20+T cells increased, with reduced Th1 and increased Th17 phenotype. Whereas in OAT the percentage of CD20+T cells with Th1/17 and Tc1/17 phenotypes increased. Interestingly, OAT from OB pre/post BMS maintained higher frequency of effector memory CD20+T cells. In conclusion, CD20+T cells may play a prominent role in obesity-related AT inflammation.
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Affiliation(s)
- Aryane Cruz Oliveira Pinho
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504, Coimbra, Portugal; Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, 3000-456, Coimbra, Portugal
| | - Pedro Barbosa
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, 3030-789, Coimbra, Portugal
| | - André Lazaro
- General Surgery Unit, Centro Hospitalar e Universitário de Coimbra University of Coimbra, 3000-075, Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548, Coimbra, Portugal
| | - José G Tralhão
- General Surgery Unit, Centro Hospitalar e Universitário de Coimbra University of Coimbra, 3000-075, Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548, Coimbra, Portugal
| | - Maria João Pereira
- Department of Medical Sciences, Clinical Diabetology and Metabolism, Uppsala University, Uppsala, Sweden
| | - Artur Paiva
- CIBB - Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504, Coimbra, Portugal; Flow Cytometry Unit, Clinical Pathology Department, Hospitais da Universidade de Coimbra, Unidade Local de Saúde de Coimbra, 3000-076, Coimbra, Portugal; Instituto Politécnico de Coimbra, ESTESC-Coimbra Health School, Ciências Biomédicas Laboratoriais, 3046-854, Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research (iCBR), Group of Environmental Genetics of Oncobiology (CIMAGO), Faculty of Medicine (FMUC), University of Coimbra, 3000-548, Coimbra, Portugal; Clinical Academic Center of Coimbra (CACC), 3000-061, Coimbra, Portugal
| | - Paula Laranjeira
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504, Coimbra, Portugal; Flow Cytometry Unit, Clinical Pathology Department, Hospitais da Universidade de Coimbra, Unidade Local de Saúde de Coimbra, 3000-076, Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research (iCBR), Group of Environmental Genetics of Oncobiology (CIMAGO), Faculty of Medicine (FMUC), University of Coimbra, 3000-548, Coimbra, Portugal; Clinical Academic Center of Coimbra (CACC), 3000-061, Coimbra, Portugal.
| | - Eugenia Carvalho
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, 3030-789, Coimbra, Portugal; APDP-Portuguese Diabetes Association, Lisbon, Portugal.
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4
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Wang T, Zhou D, Hong Z. Adipose tissue in older individuals: a contributing factor to sarcopenia. Metabolism 2024; 160:155998. [PMID: 39128607 DOI: 10.1016/j.metabol.2024.155998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 08/13/2024]
Abstract
Sarcopenia is a geriatric syndrome characterized by a functional decline in muscle. The prevalence of sarcopenia increases with natural aging, becoming a serious health problem among elderly individuals. Therefore, understanding the pathology of sarcopenia is critical for inhibiting age-related alterations and promoting health and longevity in elderly individuals. The development of sarcopenia may be influenced by interactions between visceral and subcutaneous adipose tissue and skeletal muscle, particularly under conditions of chronic low-grade inflammation and metabolic dysfunction. This hypothesis is supported by the following observations: (i) accumulation of senescent cells in both adipose tissue and skeletal muscle with age; (ii) gut dysbiosis, characterized by an imbalance in gut microbial communities as the main trigger for inflammation, sarcopenia, and aged adipose tissue; and (iii) microbial dysbiosis, which could impact the onset or progression of a senescent state. Moreover, adipose tissue acts as an endocrine organ, releasing molecules that participate in intricate communication networks between organs. Our discussion focuses on novel adipokines and their role in regulating adipose tissue and muscle, particularly those influenced by aging and obesity, emphasizing their contributions to disease development. On the basis of these findings, we propose that age-related adipose tissue and sarcopenia are disorders characterized by chronic inflammation and metabolic dysregulation. Finally, we explore new potential therapeutic strategies involving specialized proresolving mediator (SPM) G protein-coupled receptor (GPCR) agonists, non-SPM GPCR agonists, transient receptor potential (TRP) channels, antidiabetic drugs in conjunction with probiotics and prebiotics, and compounds designed to target senescent cells and mitigate their pro-inflammatory activity.
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Affiliation(s)
- Tiantian Wang
- Department of Neurology, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, China.
| | - Dong Zhou
- Department of Neurology, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, China
| | - Zhen Hong
- Department of Neurology, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, China.
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5
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Lempicki MD, Gray JA, Abuna G, Murata RM, Divanovic S, McNamara CA, Meher AK. BAFF neutralization impairs the autoantibody-mediated clearance of dead adipocytes and aggravates obesity-induced insulin resistance. Front Immunol 2024; 15:1436900. [PMID: 39185417 PMCID: PMC11341376 DOI: 10.3389/fimmu.2024.1436900] [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: 05/22/2024] [Accepted: 07/22/2024] [Indexed: 08/27/2024] Open
Abstract
B cell-activating factor (BAFF) is a critical TNF-family cytokine that regulates homeostasis and peripheral tolerance of B2 cells. BAFF overproduction promotes autoantibody generation and autoimmune diseases. During obesity, BAFF is predominantly produced by white adipose tissue (WAT), and IgG autoantibodies against adipocytes are identified in the WAT of obese humans. However, it remains to be determined if the autoantibodies formed during obesity affect WAT remodeling and systemic insulin resistance. Here, we show that IgG autoantibodies are generated in high-fat diet (HFD)-induced obese mice that bind to apoptotic adipocytes and promote their phagocytosis by macrophages. Next, using murine models of obesity in which the gonadal WAT undergoes remodeling, we found that BAFF neutralization depleted IgG autoantibodies, increased the number of dead adipocytes, and exacerbated WAT inflammation and insulin resistance. RNA sequencing of the stromal vascular fraction from the WAT revealed decreased expression of immunoglobulin light-chain and heavy-chain variable genes suggesting a decreased repertoire of B cells after BAFF neutralization. Further, the B cell activation and the phagocytosis pathways were impaired in the WAT of BAFF-neutralized mice. In vitro, plasma IgG fractions from BAFF-neutralized mice reduced the phagocytic clearance of apoptotic adipocytes. Altogether, our study suggests that IgG autoantibodies developed during obesity, at least in part, dampens exacerbated WAT inflammation and systemic insulin resistance.
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Affiliation(s)
- Melissa D. Lempicki
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC, United States
| | - Jake A. Gray
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC, United States
| | - Gabriel Abuna
- School of Dental Medicine, East Carolina University, Greenville, NC, United States
| | - Ramiro M. Murata
- School of Dental Medicine, East Carolina University, Greenville, NC, United States
| | - Senad Divanovic
- Department of Pediatrics University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Center for Inflammation and Tolerance, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Coleen A. McNamara
- Cardiovascular Research Center, Cardiovascular Division, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Akshaya K. Meher
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC, United States
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Zhang L, Li Y, Wang H, Guo Y, Wang X, Wu H, Zhang Q, Liu L, Meng G, Zhang S, Sun S, Zhou M, Jia Q, Song K, Stubbendorff A, Gu Y, Niu K. Serum immunoglobulin concentrations and risk of type 2 diabetes mellitus in adults: a prospective cohort study from the TCLSIH study. BMC Immunol 2024; 25:52. [PMID: 39075358 PMCID: PMC11285130 DOI: 10.1186/s12865-024-00637-9] [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: 12/29/2023] [Accepted: 06/28/2024] [Indexed: 07/31/2024] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by hyperglycemia resulting from defects in insulin secretion and/or insulin action. Increasing evidence suggests that inflammation played an important role in the pathogenesis of T2DM. Prospective studies on the link between immunoglobulins concentrations and the risk of T2DM in adults are limited. We developed a cohort study including 7,093 adults without T2DM history. The incidence of T2DM was 16.45 per 1,000 person-years. Compared with the lowest quartiles, the hazard ratios (95% confidence intervals) of T2DM for the highest quartiles of IgG, IgE, IgM and IgA were 0.64 (0.48-0.85), 0.94 (0.72-1.23), 0.68 (0.50-0.92) and 1.62 (1.24-2.11) (P for trend was < 0.01, 0.84, 0.02 and < 0.0001), respectively, suggesting that serum IgG and IgM concentrations were inversely associated with the incidence of T2DM, and IgA levels were positively associated with the risk of T2DM in a general adult population.
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Affiliation(s)
- Li Zhang
- Tianjin First Center Hospital Health Department, Tianjin, China
| | - Yuanbin Li
- School of Public Health of Tianjin, University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin, 301617, China
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Nutritional Epidemiology Institute, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Honglei Wang
- Wuqing District Centers for Disease Control and Prevention, Tianjin, China
| | - Yirui Guo
- Tianjin First Center Hospital Health Department, Tianjin, China
| | - Xiaotong Wang
- Nutritional Epidemiology Institute, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Hongmei Wu
- Nutritional Epidemiology Institute, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Qing Zhang
- Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China
| | - Li Liu
- Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China
| | - Ge Meng
- Nutritional Epidemiology Institute, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Shunming Zhang
- Nutritional Epidemiology Institute, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Shaomei Sun
- Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China
| | - Ming Zhou
- Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China
| | - Qiyu Jia
- Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China
| | - Kun Song
- Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China
| | - Anna Stubbendorff
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Yeqing Gu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.
| | - Kaijun Niu
- School of Public Health of Tianjin, University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin, 301617, China.
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
- Nutritional Epidemiology Institute, School of Public Health, Tianjin Medical University, Tianjin, China.
- Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China.
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.
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7
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Savulescu-Fiedler I, Mihalcea R, Dragosloveanu S, Scheau C, Baz RO, Caruntu A, Scheau AE, Caruntu C, Benea SN. The Interplay between Obesity and Inflammation. Life (Basel) 2024; 14:856. [PMID: 39063610 PMCID: PMC11277997 DOI: 10.3390/life14070856] [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: 05/28/2024] [Revised: 07/01/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
Obesity is an important condition affecting the quality of life of numerous patients and increasing their associated risk for multiple diseases, including tumors and immune-mediated disorders. Inflammation appears to play a major role in the development of obesity and represents a central point for the activity of cellular and humoral components in the adipose tissue. Macrophages play a key role as the main cellular component of the adipose tissue regulating the chronic inflammation and modulating the secretion and differentiation of various pro- and anti-inflammatory cytokines. Inflammation also involves a series of signaling pathways that might represent the focus for new therapies and interventions. Weight loss is essential in decreasing cardiometabolic risks and the degree of associated inflammation; however, the latter can persist for long after the excess weight is lost, and can involve changes in macrophage phenotypes that can ensure the metabolic adjustment. A clear understanding of the pathophysiological processes in the adipose tissue and the interplay between obesity and chronic inflammation can lead to a better understanding of the development of comorbidities and may ensure future targets for the treatment of obesity.
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Affiliation(s)
- Ilinca Savulescu-Fiedler
- Department of Internal Medicine, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Internal Medicine and Cardiology, Coltea Clinical Hospital, 030167 Bucharest, Romania
| | - Razvan Mihalcea
- Department of Internal Medicine and Cardiology, Coltea Clinical Hospital, 030167 Bucharest, Romania
| | - Serban Dragosloveanu
- Department of Orthopaedics, “Foisor” Clinical Hospital of Orthopaedics, Traumatology and Osteoarticular TB, 021382 Bucharest, Romania
- Department of Orthopaedics and Traumatology, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Cristian Scheau
- Department of Physiology, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania (C.C.)
- Department of Radiology and Medical Imaging, “Foisor” Clinical Hospital of Orthopaedics, Traumatology and Osteoarticular TB, 030167 Bucharest, Romania
| | - Radu Octavian Baz
- Clinical Laboratory of Radiology and Medical Imaging, “Sf. Apostol Andrei” County Emergency Hospital, 900591 Constanta, Romania
- Department of Radiology and Medical Imaging, Faculty of Medicine, “Ovidius” University, 900527 Constanta, Romania
| | - Ana Caruntu
- Department of Oral and Maxillofacial Surgery, “Carol Davila” Central Military Emergency Hospital, 010825 Bucharest, Romania
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Titu Maiorescu” University, 031593 Bucharest, Romania
| | - Andreea-Elena Scheau
- Department of Radiology and Medical Imaging, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Constantin Caruntu
- Department of Physiology, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania (C.C.)
- Department of Dermatology, “Prof. N.C. Paulescu” National Institute of Diabetes, Nutrition and Metabolic Diseases, 011233 Bucharest, Romania
| | - Serban Nicolae Benea
- Department of Infectious Diseases, The “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- “Prof. Dr. Matei Balș” National Institute for Infectious Diseases, 021105 Bucharest, Romania
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Li X, Yang W, Ma K, Zheng Z, Liu X, Hu B, Liu H, Zhao Q, Han Y, Xiao Z, Chen R, Li H, Huang S, Liu J, Wang C, Yin L, Meng Y. Circulating B Cell-Derived Small RNA Delivered by Extracellular Vesicles: A Dialogue Mechanism for Long-Range Targeted Renal Mitochondrial Injury in Obesity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402526. [PMID: 38958071 DOI: 10.1002/smll.202402526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/24/2024] [Indexed: 07/04/2024]
Abstract
The intricate processes that govern the interactions between peripatetic immune cells and distal renal injury in obesity are not fully understood. Employing transcriptomic analysis of circulating extracellular vesicles (EVs), a marked amplification of small RNA (miR-3960) is discerned within CD3-CD19+ B cells. This RNA is found to be preferentially augmented in kidney tissues, contrasting with its subdued expression in other organs. By synthesizing dual-luciferase reporter assay with co-immunoprecipitation analysis, it is pinpointed that miR-3960 specifically targets the nuclear gene TRMT5, a pivotal actor in the methylation of mitochondrial tRNA. This liaison instigates aberrations in the post-transcriptional modifications of mitochondrial tRNA, engendering deficiencies within the electron respiratory chain, primarily attributable to the diminution of the mitochondrial bioenergetic compound (NDUFA7) complex I. Such perturbations lead to a compromised mitochondrial respiratory capacity in renal tubular cells, thereby exacerbating tubular injury. In contrast, EV blockade or miR-3960 depletion markedly alleviates renal tubular injury in obesity. This investigation unveils a hitherto unexplored pathway by which obesity-induced circulating immune cells remotely manipulate mitochondrial metabolism in target organs. The strategic targeting of obese EVs or infiltrative immune cells and their specifically secreted RNAs emerges as a promising therapeutic avenue to forestall obesity-related renal afflictions.
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Affiliation(s)
- Xiaqing Li
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Nephrology department, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Jinan University, Heyuan, Guangdong, 517000, China
| | - Wah Yang
- Department of Obesity and Metabolic Disorders, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Institute of Obesity and Metabolic Disorders, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Ke Ma
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Nephrology department, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Jinan University, Heyuan, Guangdong, 517000, China
| | - Zirun Zheng
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Nephrology department, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Jinan University, Heyuan, Guangdong, 517000, China
| | - Xiayun Liu
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Nephrology department, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Jinan University, Heyuan, Guangdong, 517000, China
| | - Bo Hu
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Huanhuan Liu
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Qian Zhao
- Department of Infectious Diseases and Hepatology Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510400, China
| | - Yi Han
- Traditional Chinese Medicine Department, People's Hospital of Yanjiang District, Ziyang, Sichuan, 641300, China
| | - Zhangzhang Xiao
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Department of Nephrology, Houjie Hospital of Dongguan, Dongguan, Guangdong, 523945, China
| | - Ruichang Chen
- Department of Emergency Medicine, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Hongyue Li
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Nephrology department, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Jinan University, Heyuan, Guangdong, 517000, China
| | - Sibo Huang
- Health Management Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Jinfeng Liu
- Department of Gastroenterology, Binhaiwan Central Hospital of Dongguan, Dongguan, Guangdong, 523000, China
| | - Cunchuan Wang
- Department of Obesity and Metabolic Disorders, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Institute of Obesity and Metabolic Disorders, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Lianghong Yin
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Huangpu Institute of Materials, Guangzhou, Guangdong, 510663, China
| | - Yu Meng
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, Guangdong, 510632, China
- Nephrology department, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Jinan University, Heyuan, Guangdong, 517000, China
- Nephrology Department and Guangdong Provincial Key Laboratory of Spine and Spinal Cord Reconstruction, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Jinan University, Heyuan, Guangdong, 517000, China
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9
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Niu Y, Wang N, Xu Q. Development of an Endoplasmic Reticulum Stress-Related Diagnostic Signature in Polycystic Ovary Syndrome. Reprod Sci 2024:10.1007/s43032-024-01619-3. [PMID: 38955938 DOI: 10.1007/s43032-024-01619-3] [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: 12/14/2023] [Accepted: 06/03/2024] [Indexed: 07/04/2024]
Abstract
Polycystic ovary syndrome (PCOS) is a prevalent endocrine and metabolic disorder in premenopausal women. This investigation was to elucidate the underlying mechanism of endoplasmic reticulum stress (ERS) activation in granulosa cells, which has been implicated in the etiology of PCOS. Differentially expressed genes (DEGs) between PCOS and control groups were integrated with ERS gene lists from databases to identify DE-ERS genes, and functional analyses were performed. Univariate regression analysis and the LASSO method were used to select diagnostic factors, followed by establishing a DE-ERS gene-based diagnostic model. A nomogram model was further generated to predict the risk of PCOS. The correlation between ERS gene expression and immune cell proportion was assessed. A total of 14 DE-ERS genes associated with "protein processing in endoplasmic reticulum", "ferroptosis", and "glycerophospholipid metabolism" were selected as PCOS-related factors. An eight-DE-ERS genes-based diagnostic model was developed and displayed satisfactory performance in the training (Area under curve (AUC) = 0.983) and validation datasets (AUC = 0.802). High risk of PCOS can be accurately predicted, which might contribute to clinical decision-making. Moreover, EDEM1 expression was significantly positively correlated with naive B cell infiltration, while PDIA6 was negatively correlated with neutrophil proportion (P < 0.001). We identified eight novel molecules and developed an ERS gene-based diagnostic model in PCOS, which might provide novel insight for finding biomarkers and treatment methods.
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Affiliation(s)
- Yanxin Niu
- Department of Obstetrics and Gynaecology, Jinhua People's Hospital, No.267, Danxi East Road, Jinhua, 321000, Zhejiang, P.R. China
| | - Nan Wang
- Department of Obstetrics and Gynaecology, Jinhua People's Hospital, No.267, Danxi East Road, Jinhua, 321000, Zhejiang, P.R. China
| | - Qiulian Xu
- Department of Obstetrics and Gynaecology, Jinhua People's Hospital, No.267, Danxi East Road, Jinhua, 321000, Zhejiang, P.R. China.
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10
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Lambooij JM, Tak T, Zaldumbide A, Guigas B. OMIP-104: A 30-color spectral flow cytometry panel for comprehensive analysis of immune cell composition and macrophage subsets in mouse metabolic organs. Cytometry A 2024; 105:493-500. [PMID: 38651815 DOI: 10.1002/cyto.a.24845] [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: 12/23/2023] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/25/2024]
Abstract
Obesity-induced chronic low-grade inflammation, also known as metaflammation, results from alterations of the immune response in metabolic organs and contributes to the development of fatty liver diseases and type 2 diabetes. The diversity of tissue-resident leukocytes involved in these metabolic dysfunctions warrants an in-depth immunophenotyping in order to elucidate disease etiology. Here, we present a 30-color, full spectrum flow cytometry panel, designed to (i) identify the major innate and adaptive immune cell subsets in murine liver and white adipose tissues and (ii) discriminate various tissue-specific myeloid subsets known to contribute to the development of metabolic dysfunctions. This panel notably allows for distinguishing embryonically-derived liver-resident Kupffer cells from newly recruited monocyte-derived macrophages and KCs. Furthermore, several adipose tissue macrophage (ATM) subsets, including perivascular macrophages, lipid-associated macrophages, and pro-inflammatory CD11c+ ATMs, can also be identified. Finally, the panel includes cell-surface markers that have been associated with metabolic activation of different macrophage and dendritic cell subsets. Altogether, our spectral flow cytometry panel allows for an extensive immunophenotyping of murine metabolic tissues, with a particular focus on metabolically-relevant myeloid cell subsets, and can easily be adjusted to include various new markers if needed.
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Affiliation(s)
- Joost M Lambooij
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
- Department of Cell & Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Tamar Tak
- Flow Cytometry Core Facility, Leiden University Medical Center, Leiden, The Netherlands
| | - Arnaud Zaldumbide
- Department of Cell & Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Bruno Guigas
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
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11
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Randall TD, Meza-Perez S. Immunity in adipose tissues: Cutting through the fat. Immunol Rev 2024; 324:4-10. [PMID: 38733141 PMCID: PMC11262970 DOI: 10.1111/imr.13344] [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] [Indexed: 05/13/2024]
Abstract
Well known functions of adipose tissue include energy storage, regulation of thermogenesis, and glucose homeostasis-each of which are associated with the metabolic functions of fat. However, adipose tissues also have important immune functions. In this issue of Immunological Reviews, we present a series of articles that highlight the immune functions of adipose tissue, including the roles of specialized adipose-resident immune cells and fat-associated lymphoid structures. Importantly, immune cell functions in adipose tissues are often linked to the metabolic functions of adipocytes and vice versa. These reciprocal interactions and how they influence both immune and metabolic functions will be discussed in each article. In the first article, Wang et al.,11 discuss adipose-associated macrophages and how obesity and metabolism impact their phenotype and function. Several articles in this issue discuss T cells as either contributors to, or regulators of, inflammatory responses in adipose tissues. Valentine and Nikolajczyk12 provide insights into the role of T cells in obesity-associated inflammation and their contribution to metabolic dysfunction, whereas an article from Kallies and Vasanthakumar13 and another from Elkins and Li14 describe adipose-associated Tregs and how they help prevent inflammation and maintain metabolic homeostasis. Articles from Okabe35 as well as from Daley and Benezech15 discuss the structure and function of fat-associated lymphoid clusters (FALCs) that are prevalent in some adipose tissues and support local immune responses to pathogens, gut-derived microbes and fat-associated antigens. Finally, an article from Meher and McNamara16 describes how innate-like B1 cells in adipose tissues regulate cardiometabolic disease. Importantly, these articles highlight the physical and functional attributes of adipose tissues that are different between mice and humans, the metabolic and immune differences between various adipose depots in the body and the differences in immune cells, adipose tissues and metabolic functions between the sexes. At the end of this preface, we highlight how these differences are critically important for our understanding of anti-tumor immunity to cancers that metastasize to a specific example of visceral adipose tissue, the omentum. Together, these articles identify some unanswered mechanistic questions that will be important to address for a better understanding of immunity in adipose tissues.
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Affiliation(s)
- Troy D. Randall
- Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Selene Meza-Perez
- Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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12
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Meher AK, McNamara CA. B-1 lymphocytes in adipose tissue as innate modulators of inflammation linked to cardiometabolic disease. Immunol Rev 2024; 324:95-103. [PMID: 38747455 PMCID: PMC11262958 DOI: 10.1111/imr.13342] [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] [Indexed: 07/23/2024]
Abstract
Fat is stored in distinct depots with unique features in both mice and humans and B cells reside in all adipose depots. We have shown that B cells modulate cardiometabolic disease through activities in two of these key adipose depots: visceral adipose tissue (VAT) and perivascular adipose tissue (PVAT). VAT refers to the adipose tissue surrounding organs, within the abdomen and thorax, and is comprised predominantly of white adipocytes. This depot has been implicated in mediating obesity-related dysmetabolism. PVAT refers to adipose tissue surrounding major arteries. It had long been thought to exist to provide protection and insulation for the vessel, yet recent work demonstrates an important role for PVAT in harboring immune cells, promoting their function and regulating the biology of the underlying vessel. The role of B-2 cells and adaptive immunity in adipose tissue biology has been nicely reviewed elsewhere. Given that, the predominance of B-1 cells in adipose tissue at homeostasis, and the emerging role of B-1 cells in a variety of disease states, we will focus this review on how B-1 cells function in VAT and PVAT depots to promote homeostasis and limit inflammation linked to cardiometabolic disease and factors that regulate this function.
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Affiliation(s)
- Akshaya K. Meher
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA
| | - Coleen A. McNamara
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
- Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, USA
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13
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Iizuka-Koga M, Ito M, Yumoto N, Mise-Omata S, Hayakawa T, Komai K, Chikuma S, Takahashi S, Matsumoto I, Sumida T, Yoshimura A. Reconstruction of Sjögren's syndrome-like sialadenitis by a defined disease specific gut-reactive single TCR and an autoantibody. Clin Immunol 2024; 264:110258. [PMID: 38762063 DOI: 10.1016/j.clim.2024.110258] [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] [Received: 02/13/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/20/2024]
Abstract
Lymphocytes such as CD4+ T cells and B cells mainly infiltrate the salivary glands; however, the precise roles and targets of autoreactive T cells and autoantibodies in the pathogenesis of Sjögren's Syndrome (SS) remain unclear. This study was designed to clarify the role of autoreactive T cells and autoantibodies at the single-cell level involved in the development of sialadenitis. Infiltrated CD4+ T and B cells in the salivary glands of a mouse model resembling SS were single-cell-sorted, and their T cell receptor (TCR) and B cell receptor (BCR) sequences were analyzed. The predominant TCR and BCR clonotypes were reconstituted in vitro, and their pathogenicity was evaluated by transferring reconstituted TCR-expressing CD4+ T cells into Rag2-/- mice and administering recombinant IgG in vivo. The reconstitution of Th17 cells expressing TCR (#G) in Rag2-/- mice resulted in the infiltration of T cells into the salivary glands and development of sialadenitis, while an autoantibody (IgGr22) was observed to promote the proliferation of pathogenic T cells. IgGr22 specifically recognizes double-stranded RNA (dsRNA) and induces the activation of dendritic cells, thereby enhancing the expression of IFN signature and inflammatory genes. TCR#G recognizes antigens related to the gut microbiota. Antibiotic treatment severely reduces the activation of TCR#G-expressing Th17 cells and suppresses sialadenitis development. These data suggest that the anti-dsRNA antibodies and, TCR recognizing the gut microbiota involved in the development of sialadenitis like SS. Thus, our model provides a novel strategy for defining the roles of autoreactive TCR and autoantibodies in the development and pathogenesis of SS.
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Affiliation(s)
- Mana Iizuka-Koga
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
| | - Minako Ito
- Division of Allergy and Immunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Noriko Yumoto
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Setsuko Mise-Omata
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki 2669, Noda-shi, Chiba 278-0022, Japan
| | - Taeko Hayakawa
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Kyoko Komai
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Shunsuke Chikuma
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Satoru Takahashi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Isao Matsumoto
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Takayuki Sumida
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Akihiko Yoshimura
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki 2669, Noda-shi, Chiba 278-0022, Japan.
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14
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Daley AD, Bénézech C. Fat-associated lymphoid clusters: Supporting visceral adipose tissue B cell function in immunity and metabolism. Immunol Rev 2024; 324:78-94. [PMID: 38717136 DOI: 10.1111/imr.13339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 04/09/2024] [Indexed: 07/23/2024]
Abstract
It is now widely understood that visceral adipose tissue (VAT) is a highly active and dynamic organ, with many functions beyond lipid accumulation and storage. In this review, we discuss the immunological role of this tissue, underpinned by the presence of fat-associated lymphoid clusters (FALCs). FALC's distinctive structure and stromal cell composition support a very different immune cell mix to that found in classical secondary lymphoid organs, which underlies their unique functions of filtration, surveillance, innate-like immune responses, and adaptive immunity within the serous cavities. FALCs are important B cell hubs providing B1 cell-mediated frontline protection against infection and supporting B2 cell-adaptative immune responses. Beyond these beneficial immune responses orchestrated by FALCs, immune cells within VAT play important homeostatic role. Dysregulation of immune cells during obesity and aging leads to chronic pathological "metabolic inflammation", which contributes to the development of cardiometabolic diseases. Here, we examine the emerging and complex functions of B cells in VAT homeostasis and the metabolic complications of obesity, highlighting the potential role that FALCs play and emphasize the areas where further research is needed.
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Affiliation(s)
- Alexander D Daley
- Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Cécile Bénézech
- Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
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15
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Cunha A, Perazzio S. Effects of immune exhaustion and senescence of innate immunity in autoimmune disorders. Braz J Med Biol Res 2024; 57:e13225. [PMID: 38896644 PMCID: PMC11186593 DOI: 10.1590/1414-431x2024e13225] [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] [Received: 11/30/2023] [Accepted: 04/22/2024] [Indexed: 06/21/2024] Open
Abstract
Innate immune system activation is crucial in the inflammatory response, but uncontrolled activation can lead to autoimmune diseases. Cellular exhaustion and senescence are two processes that contribute to innate immune tolerance breakdown. Exhausted immune cells are unable to respond adequately to specific antigens or stimuli, while senescent cells have impaired DNA replication and metabolic changes. These processes can impair immune system function and disrupt homeostasis, leading to the emergence of autoimmunity. However, the influence of innate immune exhaustion and senescence on autoimmune disorders is not well understood. This review aims to describe the current findings on the role of innate immune exhaustion and senescence in autoimmunity, focusing on the cellular and molecular changes involved in each process. Specifically, the article explores the markers and pathways associated with immune exhaustion, such as PD-1 and TIM-3, and senescence, including Β-galactosidase (β-GAL), lamin B1, and p16ink4a, and their impact on autoimmune diseases, namely type 1 diabetes, rheumatoid arthritis, systemic lupus erythematosus, and immune-mediated myopathies. Understanding the mechanisms underlying innate immune exhaustion and senescence in autoimmunity may provide insights for the development of novel therapeutic strategies.
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Affiliation(s)
- A.L.S. Cunha
- Divisão de Reumatologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - S.F. Perazzio
- Divisão de Reumatologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
- Divisão de Imunologia, Laboratório Fleury, São Paulo, SP, Brasil
- Laboratório Central, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
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16
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Yang Z, Chen F, Zhang Y, Ou M, Tan P, Xu X, Li Q, Zhou S. Therapeutic targeting of white adipose tissue metabolic dysfunction in obesity: mechanisms and opportunities. MedComm (Beijing) 2024; 5:e560. [PMID: 38812572 PMCID: PMC11134193 DOI: 10.1002/mco2.560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 04/09/2024] [Accepted: 04/14/2024] [Indexed: 05/31/2024] Open
Abstract
White adipose tissue is not only a highly heterogeneous organ containing various cells, such as adipocytes, adipose stem and progenitor cells, and immune cells, but also an endocrine organ that is highly important for regulating metabolic and immune homeostasis. In individuals with obesity, dynamic cellular changes in adipose tissue result in phenotypic switching and adipose tissue dysfunction, including pathological expansion, WAT fibrosis, immune cell infiltration, endoplasmic reticulum stress, and ectopic lipid accumulation, ultimately leading to chronic low-grade inflammation and insulin resistance. Recently, many distinct subpopulations of adipose tissue have been identified, providing new insights into the potential mechanisms of adipose dysfunction in individuals with obesity. Therefore, targeting white adipose tissue as a therapeutic agent for treating obesity and obesity-related metabolic diseases is of great scientific interest. Here, we provide an overview of white adipose tissue remodeling in individuals with obesity including cellular changes and discuss the underlying regulatory mechanisms of white adipose tissue metabolic dysfunction. Currently, various studies have uncovered promising targets and strategies for obesity treatment. We also outline the potential therapeutic signaling pathways of targeting adipose tissue and summarize existing therapeutic strategies for antiobesity treatment including pharmacological approaches, lifestyle interventions, and novel therapies.
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Affiliation(s)
- Zi‐Han Yang
- Department of Plastic and Burn SurgeryWest China Hospital of Sichuan UniversityChengduChina
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Fang‐Zhou Chen
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Yi‐Xiang Zhang
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Min‐Yi Ou
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Poh‐Ching Tan
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xue‐Wen Xu
- Department of Plastic and Burn SurgeryWest China Hospital of Sichuan UniversityChengduChina
| | - Qing‐Feng Li
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Shuang‐Bai Zhou
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
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17
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Fleetwood AJ, Noonan J, La Gruta N, Kallies A, Murphy AJ. Immunometabolism in atherosclerotic disorders. NATURE CARDIOVASCULAR RESEARCH 2024; 3:637-650. [PMID: 39196223 DOI: 10.1038/s44161-024-00473-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 04/11/2024] [Indexed: 08/29/2024]
Abstract
Cardiovascular diseases (CVDs), including atherosclerosis, myocardial infarction and heart failure, are the leading causes of morbidity and mortality worldwide. Emerging evidence suggests a crucial role for immune cell dysfunction and inflammation in the progression of this complex set of diseases. Recent advances demonstrate that immune cells, tightly linked to CVD pathogenesis, are sensitive to environmental signals and respond by engaging immunometabolic networks that shape their behavior. Inflammatory cues and altered nutrient availability within atherosclerotic plaques or following ischemia synergize to elicit metabolic shifts in immune cells that influence the course of disease pathology. Understanding these metabolic adaptations and how they contribute to cellular dysfunction may reveal novel therapeutic approaches for the treatment of CVD. Here we provide a comprehensive summary of the metabolic reprogramming that occurs in immune cells and their progenitors during CVD, offering insights into the potential therapeutic interventions to mitigate disease progression.
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Affiliation(s)
- Andrew J Fleetwood
- Division of Immunometabolism, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.
| | - Jonathan Noonan
- Division of Immunometabolism, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Nicole La Gruta
- Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Axel Kallies
- The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Andrew J Murphy
- Division of Immunometabolism, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.
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18
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Poxleitner M, Hoffmann SHL, Berezhnoy G, Ionescu TM, Gonzalez-Menendez I, Maier FC, Seyfried D, Ehrlichmann W, Quintanilla-Martinez L, Schmid AM, Reischl G, Trautwein C, Maurer A, Pichler BJ, Herfert K, Beziere N. Western diet increases brain metabolism and adaptive immune responses in a mouse model of amyloidosis. J Neuroinflammation 2024; 21:129. [PMID: 38745337 PMCID: PMC11092112 DOI: 10.1186/s12974-024-03080-0] [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: 01/18/2024] [Accepted: 03/29/2024] [Indexed: 05/16/2024] Open
Abstract
Diet-induced increase in body weight is a growing health concern worldwide. Often accompanied by a low-grade metabolic inflammation that changes systemic functions, diet-induced alterations may contribute to neurodegenerative disorder progression as well. This study aims to non-invasively investigate diet-induced metabolic and inflammatory effects in the brain of an APPPS1 mouse model of Alzheimer's disease. [18F]FDG, [18F]FTHA, and [18F]GE-180 were used for in vivo PET imaging in wild-type and APPPS1 mice. Ex vivo flow cytometry and histology in brains complemented the in vivo findings. 1H- magnetic resonance spectroscopy in the liver, plasma metabolomics and flow cytometry of the white adipose tissue were used to confirm metaflammatory condition in the periphery. We found disrupted glucose and fatty acid metabolism after Western diet consumption, with only small regional changes in glial-dependent neuroinflammation in the brains of APPPS1 mice. Further ex vivo investigations revealed cytotoxic T cell involvement in the brains of Western diet-fed mice and a disrupted plasma metabolome. 1H-magentic resonance spectroscopy and immunological results revealed diet-dependent inflammatory-like misbalance in livers and fatty tissue. Our multimodal imaging study highlights the role of the brain-liver-fat axis and the adaptive immune system in the disruption of brain homeostasis in amyloid models of Alzheimer's disease.
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Affiliation(s)
- Marilena Poxleitner
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Sabrina H L Hoffmann
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Georgy Berezhnoy
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Tudor M Ionescu
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Irene Gonzalez-Menendez
- Department of Pathology and Neuropathology, University Hospital Tübingen, Eberhard Karls University, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University, Tübingen, Germany
| | - Florian C Maier
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Dominik Seyfried
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Walter Ehrlichmann
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Leticia Quintanilla-Martinez
- Department of Pathology and Neuropathology, University Hospital Tübingen, Eberhard Karls University, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University, Tübingen, Germany
| | - Andreas M Schmid
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University, Tübingen, Germany
| | - Gerald Reischl
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University, Tübingen, Germany
| | - Christoph Trautwein
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University, Tübingen, Germany
| | - Andreas Maurer
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University, Tübingen, Germany
| | - Bernd J Pichler
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University, Tübingen, Germany
| | - Kristina Herfert
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany.
| | - Nicolas Beziere
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany.
- Cluster of Excellence CMFI (EXC 2124) "Controlling Microbes to Fight Infections", Eberhard Karls University, Tübingen, Germany.
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19
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Kountouras J, Boziki M, Kazakos E, Theotokis P, Kesidou E, Nella M, Bakirtzis C, Karafoulidou E, Vardaka E, Mouratidou MC, Kyrailidi F, Tzitiridou-Chatzopoulou M, Orovou E, Giartza-Taxidou E, Deretzi G, Grigoriadis N, Doulberis M. Impact of Helicobacter pylori and metabolic syndrome on mast cell activation-related pathophysiology and neurodegeneration. Neurochem Int 2024; 175:105724. [PMID: 38508416 DOI: 10.1016/j.neuint.2024.105724] [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] [Received: 12/08/2023] [Revised: 03/03/2024] [Accepted: 03/17/2024] [Indexed: 03/22/2024]
Abstract
Both Helicobacter pylori (H. pylori) infection and metabolic syndrome (MetS) are highly prevalent worldwide. The emergence of relevant research suggesting a pathogenic linkage between H. pylori infection and MetS-related cardio-cerebrovascular diseases and neurodegenerative disorders, particularly through mechanisms involving brain pericyte deficiency, hyperhomocysteinemia, hyperfibrinogenemia, elevated lipoprotein-a, galectin-3 overexpression, atrial fibrillation, and gut dysbiosis, has raised stimulating questions regarding their pathophysiology and its translational implications for clinicians. An additional stimulating aspect refers to H. pylori and MetS-related activation of innate immune cells, mast cells (MC), which is an important, often early, event in systemic inflammatory pathologies and related brain disorders. Synoptically, MC degranulation may play a role in the pathogenesis of H. pylori and MetS-related obesity, adipokine effects, dyslipidemia, diabetes mellitus, insulin resistance, arterial hypertension, vascular dysfunction and arterial stiffness, an early indicator of atherosclerosis associated with cardio-cerebrovascular and neurodegenerative disorders. Meningeal MC can be activated by triggers including stress and toxins resulting in vascular changes and neurodegeneration. Likewise, H.pylori and MetS-related MC activation is linked with: (a) vasculitis and thromboembolic events that increase the risk of cardio-cerebrovascular and neurodegenerative disorders, and (b) gut dysbiosis-associated neurodegeneration, whereas modulation of gut microbiota and MC activation may promote neuroprotection. This narrative review investigates the intricate relationship between H. pylori infection, MetS, MC activation, and their collective impact on pathophysiological processes linked to neurodegeneration. Through a comprehensive search of current literature, we elucidate the mechanisms through which H. pylori and MetS contribute to MC activation, subsequently triggering cascades of inflammatory responses. This highlights the role of MC as key mediators in the pathogenesis of cardio-cerebrovascular and neurodegenerative disorders, emphasizing their involvement in neuroinflammation, vascular dysfunction and, ultimately, neuronal damage. Although further research is warranted, we provide a novel perspective on the pathophysiology and management of brain disorders by exploring potential therapeutic strategies targeting H. pylori eradication, MetS management, and modulation of MC to mitigate neurodegeneration risk while promoting neuroprotection.
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Affiliation(s)
- Jannis Kountouras
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece.
| | - Marina Boziki
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Evangelos Kazakos
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; School of Healthcare Sciences, Midwifery Department, University of West Macedonia, Koila, Kozani, 50100, Macedonia, Greece
| | - Paschalis Theotokis
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Evangelia Kesidou
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Maria Nella
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Christos Bakirtzis
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Eleni Karafoulidou
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Elisabeth Vardaka
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, Alexander Campus, 57400, Macedonia, Greece
| | - Maria C Mouratidou
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece
| | - Foteini Kyrailidi
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece
| | - Maria Tzitiridou-Chatzopoulou
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; School of Healthcare Sciences, Midwifery Department, University of West Macedonia, Koila, Kozani, 50100, Macedonia, Greece
| | - Eirini Orovou
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; School of Healthcare Sciences, Midwifery Department, University of West Macedonia, Koila, Kozani, 50100, Macedonia, Greece
| | - Evaggelia Giartza-Taxidou
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece
| | - Georgia Deretzi
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; Department of Neurology, Papageorgiou General Hospital, Thessaloniki, Macedonia, Greece
| | - Nikolaos Grigoriadis
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Michael Doulberis
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; Gastroklinik, Private Gastroenterological Practice, 8810, Horgen, Switzerland; Division of Gastroenterology and Hepatology, Medical University Department, Kantonsspital Aarau, 5001, Aarau, Switzerland
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20
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Sikder S, Pierce D, Sarkar ER, McHugh C, Quinlan KGR, Giacomin P, Loukas A. Regulation of host metabolic health by parasitic helminths. Trends Parasitol 2024; 40:386-400. [PMID: 38609741 DOI: 10.1016/j.pt.2024.03.006] [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] [Received: 02/12/2024] [Revised: 03/14/2024] [Accepted: 03/14/2024] [Indexed: 04/14/2024]
Abstract
Obesity is a worldwide pandemic and major risk factor for the development of metabolic syndrome (MetS) and type 2 diabetes (T2D). T2D requires lifelong medical support to limit complications and is defined by impaired glucose tolerance, insulin resistance (IR), and chronic low-level systemic inflammation initiating from adipose tissue. The current preventative strategies include a healthy diet, controlled physical activity, and medication targeting hyperglycemia, with underexplored underlying inflammation. Studies suggest a protective role for helminth infection in the prevention of T2D. The mechanisms may involve induction of modified type 2 and regulatory immune responses that suppress inflammation and promote insulin sensitivity. In this review, the roles of helminths in counteracting MetS, and prospects for harnessing these protective mechanisms for the development of novel anti-diabetes drugs are discussed.
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Affiliation(s)
- Suchandan Sikder
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland 4878, Australia.
| | - Doris Pierce
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland 4878, Australia
| | - Eti R Sarkar
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland 4878, Australia; College of Public Health, Medical and Veterinary Sciences, James Cook University, Cairns, Queensland 4878, Australia
| | - Connor McHugh
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland 4878, Australia; College of Public Health, Medical and Veterinary Sciences, James Cook University, Cairns, Queensland 4878, Australia
| | - Kate G R Quinlan
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Paul Giacomin
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland 4878, Australia; Macrobiome Therapeutics Pty Ltd, Cairns, Queensland 4878, Australia
| | - Alex Loukas
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland 4878, Australia; Macrobiome Therapeutics Pty Ltd, Cairns, Queensland 4878, Australia
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21
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Saraswathi V, Ai W, Kumar V, Sharma K, Gopal T, Kumar N, Malhi H, Sehrawat T, Desouza CV. A Pilot Study on the Proteomics Profile of Serum Exosome-Enriched Extracellular Vesicles from Normal versus Individuals with Obesity-Related Insulin Resistance. Biomedicines 2024; 12:799. [PMID: 38672154 PMCID: PMC11048419 DOI: 10.3390/biomedicines12040799] [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: 02/06/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
OBJECTIVE Circulating exosome-enriched extracellular vesicles (EVs) have drawn considerable importance in obesity-related insulin-resistance (IR). We sought to compare the proteomics profile of serum exosomes from normal individuals and those with obesity and IR. METHODS We isolated serum exosomes from male subjects with obesity and insulin resistance (Ob-IR, HOMA-IR > 2.0) and lean/overweight insulin-sensitive (Normal (N), HOMA-IR < 2.0) individuals. The differential protein expression between the two groups was detected by a label-free quantitative mass spectrometry analysis followed by GO annotation and ingenuity pathway analysis (IPA). RESULTS We identified 23 upregulated and 46 downregulated proteins between Ob-IR and N groups. Some of these proteins are involved in altering insulin signaling (VPS13C, TBC1D32, TTR, and ADIPOQ), inflammation (NFκB and CRP), and B-cell proliferation/activation (IGLV4-69, IGKV1D-13, and IGHV4-28). GO analysis revealed that the differentially expressed proteins (DEPs) are mainly involved in regulating immune cell activation and are located in extracellular space. IPA analysis showed that top molecules mediating IR, inflammation and B-cell activation were upregulated in Ob-IR subjects compared to N subjects. CONCLUSIONS Serum exosomal proteins can be used as biomarkers to identify the future risk of diabetes and a therapeutic target to prevent or slow down the progression of diabetes in high-risk individuals.
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Affiliation(s)
- Viswanathan Saraswathi
- VA Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA; (V.S.); (W.A.); (T.G.); (N.K.)
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Weilun Ai
- VA Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA; (V.S.); (W.A.); (T.G.); (N.K.)
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Vikas Kumar
- Department of Genetics Cell Biology & Anatomy, University of Nebraska Medical Center, Omaha, NE 68198, USA; (V.K.); (K.S.)
| | - Kanika Sharma
- Department of Genetics Cell Biology & Anatomy, University of Nebraska Medical Center, Omaha, NE 68198, USA; (V.K.); (K.S.)
| | - Thiyagarajan Gopal
- VA Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA; (V.S.); (W.A.); (T.G.); (N.K.)
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Narendra Kumar
- VA Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA; (V.S.); (W.A.); (T.G.); (N.K.)
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Harmeet Malhi
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA (T.S.)
| | - Tejasav Sehrawat
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA (T.S.)
| | - Cyrus V. Desouza
- VA Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA; (V.S.); (W.A.); (T.G.); (N.K.)
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE 68198, USA
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22
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Yu L, Wan Q, Liu Q, Fan Y, Zhou Q, Skowronski AA, Wang S, Shao Z, Liao CY, Ding L, Kennedy BK, Zha S, Que J, LeDuc CA, Sun L, Wang L, Qiang L. IgG is an aging factor that drives adipose tissue fibrosis and metabolic decline. Cell Metab 2024; 36:793-807.e5. [PMID: 38378001 PMCID: PMC11070064 DOI: 10.1016/j.cmet.2024.01.015] [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: 05/14/2023] [Revised: 10/31/2023] [Accepted: 01/25/2024] [Indexed: 02/22/2024]
Abstract
Aging is underpinned by pronounced metabolic decline; however, the drivers remain obscure. Here, we report that IgG accumulates during aging, particularly in white adipose tissue (WAT), to impair adipose tissue function and metabolic health. Caloric restriction (CR) decreases IgG accumulation in WAT, whereas replenishing IgG counteracts CR's metabolic benefits. IgG activates macrophages via Ras signaling and consequently induces fibrosis in WAT through the TGF-β/SMAD pathway. Consistently, B cell null mice are protected from aging-associated WAT fibrosis, inflammation, and insulin resistance, unless exposed to IgG. Conditional ablation of the IgG recycling receptor, neonatal Fc receptor (FcRn), in macrophages prevents IgG accumulation in aging, resulting in prolonged healthspan and lifespan. Further, targeting FcRn by antisense oligonucleotide restores WAT integrity and metabolic health in aged mice. These findings pinpoint IgG as a hidden culprit in aging and enlighten a novel strategy to rejuvenate metabolic health.
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Affiliation(s)
- Lexiang Yu
- Naomi Berrie Diabetes Center, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Qianfen Wan
- Naomi Berrie Diabetes Center, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Qiongming Liu
- Naomi Berrie Diabetes Center, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Yong Fan
- Naomi Berrie Diabetes Center, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Qiuzhong Zhou
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore, Singapore
| | - Alicja A Skowronski
- Naomi Berrie Diabetes Center, Department of Pediatrics, Columbia University, New York, NY 10032, USA
| | - Summer Wang
- Institute for Cancer Genetics, Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
| | - Zhengping Shao
- Institute for Cancer Genetics, Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
| | - Chen-Yu Liao
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Lei Ding
- Department of Rehabilitation and Regenerative Medicine, Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Brian K Kennedy
- Buck Institute for Research on Aging, Novato, CA 94945, USA; Healthy Longevity Translational Research Programme, Departments of Biochemistry and Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Centre for Health Longevity, National University Health System, Singapore, Singapore
| | - Shan Zha
- Institute for Cancer Genetics, Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
| | - Jianwen Que
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Charles A LeDuc
- Naomi Berrie Diabetes Center, Department of Pediatrics, Columbia University, New York, NY 10032, USA
| | - Lei Sun
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore, Singapore
| | - Liheng Wang
- Institute of Cardiovascular Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Department of Medicine, Division of Endocrinology, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Li Qiang
- Department of Pharmacology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China; Naomi Berrie Diabetes Center, Department of Medicine, Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA.
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23
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Matsumura K, Mori T, Dohi T, Kawamura YI, Takaki S. Composition of fatty acids in a high-fat diet affects adipose tissue inflammation by inducing calreticulin on adipocytes and activating group 1 innate lymphoid cells. Eur J Immunol 2024; 54:e2350800. [PMID: 38282083 DOI: 10.1002/eji.202350800] [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: 10/02/2023] [Revised: 01/15/2024] [Accepted: 01/15/2024] [Indexed: 01/30/2024]
Abstract
Obesity-induced adipose tissue inflammation plays a critical role in the development of metabolic diseases. For example, NK1.1+ group 1 innate lymphoid cells (G1-ILCs) in adipose tissues are activated in the early stages of inflammation in response to a high-fat diet (HFD). In this study, we examined whether the composition of fatty acids affected adipose inflammatory responses induced by an HFD. Mice were fed a stearic acid (C18:0)-rich HFD (HFD-S) or a linoleic acid (C18:2)-rich HFD (HFD-L). HFD-L-fed mice showed significant obesity compared with HFD-S-fed mice. Visceral and subcutaneous fat pads were enlarged and contained more NK1.1+KLRG1+ cells, indicating that G1-ILCs were activated in HFD-L-fed mice. We examined early changes in adipose tissues during the first week of HFD intake, and found that mice fed HFD-L showed increased levels of NK1.1+CD11b+KLRG1+ cells in adipose tissues. In adipose tissue culture, addition of 4-hydroxynonenal, the most frequent product of lipid peroxidation derived from unsaturated fatty acids, induced NK1.1+CD11b+CD27- cells. We found that calreticulin, a ligand for the NK activating receptor, was induced on the surface of adipocytes after exposure to 4-hydroxynonenal or a 1-week feeding with HFD-L. Thus, excess fatty acid intake and the activation of G1-ILCs initiate and/or modify adipose inflammation.
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Affiliation(s)
- Kazunori Matsumura
- Department of Immune Regulation, The Research Center for Hepatitis and Immunology, Research Institute, National Center for Global Health and Medicine, Chiba, Japan
| | - Taizo Mori
- Department of Immune Regulation, The Research Center for Hepatitis and Immunology, Research Institute, National Center for Global Health and Medicine, Chiba, Japan
- Department of Liver Disease, The Research Center for Hepatitis and Immunology, Research Institute, National Center for Global Health and Medicine, Chiba, Japan
| | - Taeko Dohi
- Clinical Research Advancement Section, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yuki I Kawamura
- Clinical Research Advancement Section, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Satoshi Takaki
- Department of Immune Regulation, The Research Center for Hepatitis and Immunology, Research Institute, National Center for Global Health and Medicine, Chiba, Japan
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24
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Wang T, Xiong X, Xiao N, Yan Y, Liu X, Xie Q, Su X, Chen M, Peng J, Wang S, Mei H, Lin G, Gong F, Cheng L. The therapeutic effect of anti-CD19 antibody on DHEA-induced PCOS mice. Int Immunopharmacol 2024; 130:111711. [PMID: 38428145 DOI: 10.1016/j.intimp.2024.111711] [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] [Received: 12/06/2023] [Revised: 02/04/2024] [Accepted: 02/13/2024] [Indexed: 03/03/2024]
Abstract
Immune dysregulation has been summarized as a critical factor in the occurrence and development of Polycystic ovary syndrome (PCOS), but potential mediators and mechanisms remain unclear. Our previous study showed that CD19+ B cells were involved in the pathogenesis of dehydroepiandrosterone (DHEA)-induced PCOS mice. Here, we studied the therapeutic potential of anti-CD19 antibody (aCD19 Ab) on DHEA-induced PCOS mice. The results showed that aCD19 Ab treatment improved ovarian pathological structure and function of PCOS mice, manifested by an increased number of corpus luteum, a decreased number of cystic follicles and atretic follicles, and regular estrus cycles. The aCD19 Ab treatment reduced the proportion of splenic CD21+ CD23low marginal zone B cells as well as the level of serum IgM and decreased the percentage of peripheral blood and splenic neutrophils. In particular, aCD19 Ab treatment reduced the apoptosis of granulosa cells and macrophage infiltration in ovarian secondary follicles of PCOS mice, as well as the expression of TNF-α in ovarian tissue and serum TNF-α levels. Moreover, we confirmed that TNF-α induced the apoptosis of human ovarian granulosa tumor cell line cells in vitro. Thus, our work demonstrates that aCD19 Ab treatment improves ovarian pathological phenotype and function by reducing local and systemic inflammation in PCOS mice, which may provide a novel insight into PCOS therapy.
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Affiliation(s)
- Ting Wang
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China
| | - Xingliang Xiong
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
| | - Na Xiao
- National Engineering and Research Center of Human Stem Cells, Changsha, China; Hunan Guangxiu Hi-tech Life Technology Co. Ltd, Changsha, China; Guangxiu Hospital, Hunan Normal University, Changsha, China
| | - Yizhong Yan
- National Engineering and Research Center of Human Stem Cells, Changsha, China
| | - Xiaoyang Liu
- Guangxiu Hospital, Hunan Normal University, Changsha, China
| | - Qi Xie
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China
| | - Xian Su
- National Engineering and Research Center of Human Stem Cells, Changsha, China; Hunan Guangxiu Hi-tech Life Technology Co. Ltd, Changsha, China
| | - Maosheng Chen
- Huaihua City Maternal and Child Health Care Hospital, HuaiHua, China
| | - Jing Peng
- National Engineering and Research Center of Human Stem Cells, Changsha, China; Hunan Guangxiu Hi-tech Life Technology Co. Ltd, Changsha, China
| | - Siqi Wang
- National Engineering and Research Center of Human Stem Cells, Changsha, China; Hunan Guangxiu Hi-tech Life Technology Co. Ltd, Changsha, China
| | - Hua Mei
- National Engineering and Research Center of Human Stem Cells, Changsha, China; Hunan Guangxiu Hi-tech Life Technology Co. Ltd, Changsha, China
| | - Ge Lin
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China; National Engineering and Research Center of Human Stem Cells, Changsha, China; Hunan Guangxiu Hi-tech Life Technology Co. Ltd, Changsha, China; Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China; NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Fei Gong
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China; Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China; NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Lamei Cheng
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China; National Engineering and Research Center of Human Stem Cells, Changsha, China; Hunan Guangxiu Hi-tech Life Technology Co. Ltd, Changsha, China; Guangxiu Hospital, Hunan Normal University, Changsha, China; NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, Hunan, China.
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25
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Carey A, Nguyen K, Kandikonda P, Kruglov V, Bradley C, Dahlquist KJV, Cholensky S, Swanson W, Badovinac VP, Griffith TS, Camell CD. Age-associated accumulation of B cells promotes macrophage inflammation and inhibits lipolysis in adipose tissue during sepsis. Cell Rep 2024; 43:113967. [PMID: 38492219 PMCID: PMC11014686 DOI: 10.1016/j.celrep.2024.113967] [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: 09/26/2023] [Revised: 02/14/2024] [Accepted: 02/29/2024] [Indexed: 03/18/2024] Open
Abstract
Non-canonical lipolysis induced by inflammatory cytokines or Toll-like receptor ligands is required for the regulation of inflammation during endotoxemia and sepsis. Canonical lipolysis induced by catecholamines declines during aging due to factors including an expansion of lymphocytes, pro-inflammatory macrophage polarization, and an increase in chronic low-grade inflammation; however, the extent to which the non-canonical pathway of lipolysis is active and impacted by immune cells during aging remains unclear. Therefore, we aimed to define the extent to which immune cells from old mice influence non-canonical lipolysis during sepsis. We identified age-associated impairments of non-canonical lipolysis and an accumulation of dysfunctional B1 B cells in the visceral white adipose tissue (vWAT) of old mice. Lifelong deficiency of B cells results in restored non-canonical lipolysis and reductions in pro-inflammatory macrophage populations. Our study suggests that targeting the B cell-macrophage signaling axis may resolve metabolic dysfunction in aged vWAT and attenuate septic severity in older individuals.
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Affiliation(s)
- Anna Carey
- Molecular Pharmacology and Therapeutics Graduate Program, Department of Pharmacology, University of Minnesota, Minneapolis, MN 55455, USA; Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Katie Nguyen
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Pranathi Kandikonda
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Victor Kruglov
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Claire Bradley
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Korbyn J V Dahlquist
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Stephanie Cholensky
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Whitney Swanson
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
| | | | - Thomas S Griffith
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA; Minneapolis VA Health Care System, Minneapolis, MN 55417, USA
| | - Christina D Camell
- Molecular Pharmacology and Therapeutics Graduate Program, Department of Pharmacology, University of Minnesota, Minneapolis, MN 55455, USA; Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA.
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26
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Conte C, Cipponeri E, Roden M. Diabetes Mellitus, Energy Metabolism, and COVID-19. Endocr Rev 2024; 45:281-308. [PMID: 37934800 PMCID: PMC10911957 DOI: 10.1210/endrev/bnad032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 08/30/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023]
Abstract
Obesity, diabetes mellitus (mostly type 2), and COVID-19 show mutual interactions because they are not only risk factors for both acute and chronic COVID-19 manifestations, but also because COVID-19 alters energy metabolism. Such metabolic alterations can lead to dysglycemia and long-lasting effects. Thus, the COVID-19 pandemic has the potential for a further rise of the diabetes pandemic. This review outlines how preexisting metabolic alterations spanning from excess visceral adipose tissue to hyperglycemia and overt diabetes may exacerbate COVID-19 severity. We also summarize the different effects of SARS-CoV-2 infection on the key organs and tissues orchestrating energy metabolism, including adipose tissue, liver, skeletal muscle, and pancreas. Last, we provide an integrative view of the metabolic derangements that occur during COVID-19. Altogether, this review allows for better understanding of the metabolic derangements occurring when a fire starts from a small flame, and thereby help reducing the impact of the COVID-19 pandemic.
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Affiliation(s)
- Caterina Conte
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Rome 00166, Italy
- Department of Endocrinology, Nutrition and Metabolic Diseases, IRCCS MultiMedica, Milan 20099, Italy
| | - Elisa Cipponeri
- Department of Endocrinology, Nutrition and Metabolic Diseases, IRCCS MultiMedica, Milan 20099, Italy
| | - Michael Roden
- Department of Endocrinology and Diabetology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
- German Center for Diabetes Research, Partner Düsseldorf, Neuherberg 85764, Germany
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27
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Barberis M, Rojas López A. Metabolic imbalance driving immune cell phenotype switching in autoimmune disorders: Tipping the balance of T- and B-cell interactions. Clin Transl Med 2024; 14:e1626. [PMID: 38500390 PMCID: PMC10948951 DOI: 10.1002/ctm2.1626] [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: 07/17/2023] [Revised: 02/18/2024] [Accepted: 02/25/2024] [Indexed: 03/20/2024] Open
Abstract
The interplay between the immune system and the metabolic state of a cell is intricate. In all phases of an immune response, the corresponding metabolic changes shall occur to support its modulation, in addition to the signalling through the cytokine environment and immune receptor stimulation. While autoimmune disorders may develop because of a metabolic imbalance that modulates switching between T-cell phenotypes, the effects that the interaction between T and B cells have on one another's cellular metabolism are yet to be understood in disease context. Here, we propose a perspective which highlights the potential of targeting metabolism to modulate T- and B-cell subtypes populations as well as T-B and B-T cell interactions to successfully treat autoimmune disorders. Specifically, we envision how metabolic changes can tip the balance of immune cells interactions, through definite mechanisms in both health and disease, to explain phenotype switches of B and T cells. Within this scenario, we highlight targeting metabolism that link inflammation, immunometabolism, epigenetics and ageing, is critical to understand inflammatory disorders. The combination of treatments targeting immune cells that cause (T/B) cell phenotype imbalances, and the metabolic pathways involved, may increase the effectiveness of treatment of autoimmune disorders, and/or ameliorate their symptoms to improve patients' quality of life.
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Affiliation(s)
- Matteo Barberis
- Molecular Systems BiologySchool of BiosciencesFaculty of Health and Medical SciencesUniversity of SurreyGuildfordSurreyUK
- Centre for Mathematical and Computational Biology, CMCBUniversity of SurreyGuildfordSurreyUK
- Synthetic Systems Biology and Nuclear OrganizationSwammerdam Institute for Life SciencesUniversity of AmsterdamAmsterdamThe Netherlands
| | - Alejandra Rojas López
- Molecular Systems BiologySchool of BiosciencesFaculty of Health and Medical SciencesUniversity of SurreyGuildfordSurreyUK
- Centre for Mathematical and Computational Biology, CMCBUniversity of SurreyGuildfordSurreyUK
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28
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Susca N, Leone P, Prete M, Cozzio S, Racanelli V. Adipose failure through adipocyte overload and autoimmunity. Autoimmun Rev 2024; 23:103502. [PMID: 38101692 DOI: 10.1016/j.autrev.2023.103502] [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] [Received: 11/21/2023] [Accepted: 12/10/2023] [Indexed: 12/17/2023]
Abstract
Metabolic syndrome poses a great worldwide threat to the health of the patients. Increased visceral adiposity is recognized as the main determinant of the detrimental clinical effects of insulin resistance. Inflammation and immune system activation in the adipose tissue (AT) have a central role in the pathophysiology of metabolic syndrome, but the mechanisms linking increased adiposity to immunity in the AT remain in part elusive. In this review, we support the central role of adipocyte overload and relative adipose failure as key determinants in triggering immune aggression to AT. This provides a mechanistic explanation of the relative metabolic wellness of metabolically normal obese people and the disruption in insulin signaling in metabolically obese lean people.
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Affiliation(s)
- Nicola Susca
- Department of Interdisciplinary Medicine, School of Medicine, 'Aldo Moro' University of Bari, 70124 Bari, Italy
| | - Patrizia Leone
- Department of Interdisciplinary Medicine, School of Medicine, 'Aldo Moro' University of Bari, 70124 Bari, Italy
| | - Marcella Prete
- Department of Interdisciplinary Medicine, School of Medicine, 'Aldo Moro' University of Bari, 70124 Bari, Italy
| | - Susanna Cozzio
- U.O. di Medicina Interna, Ospedale di Rovereto, Azienda Sanitaria per i Servizi Provinciali di Trento, Trento, Italy
| | - Vito Racanelli
- Centre for Medical Sciences - CISMed, University of Trento and Department of Internal Medicine, Santa Chiara Hospital, Trento, Italy.
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29
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Satoh M, Iwabuchi K. Contribution of NKT cells and CD1d-expressing cells in obesity-associated adipose tissue inflammation. Front Immunol 2024; 15:1365843. [PMID: 38426085 PMCID: PMC10902011 DOI: 10.3389/fimmu.2024.1365843] [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: 01/05/2024] [Accepted: 01/30/2024] [Indexed: 03/02/2024] Open
Abstract
Natural killer T (NKT) cell are members of the innate-like T lymphocytes and recognizes lipid antigens presented by CD1d-expressing cells. Obesity-associated inflammation in adipose tissue (AT) leads to metabolic dysfunction, including insulin resistance. When cellular communication is properly regulated among AT-residing immune cells and adipocytes during inflammation, a favorable balance of Th1 and Th2 immune responses is achieved. NKT cells play crucial roles in AT inflammation, influencing the development of diet-induced obesity and insulin resistance. NKT cells interact with CD1d-expressing cells in AT, such as adipocytes, macrophages, and dendritic cells, shaping pro-inflammatory or anti-inflammatory microenvironments with distinct characteristics depending on the antigen-presenting cells. Additionally, CD1d may be involved in the inflammatory process independently of NKT cells. In this mini-review, we provide a brief overview of the current understanding of the interaction between immune cells, focusing on NKT cells and CD1d signaling, which control AT inflammation both in the presence and absence of NKT cells. We aim to enhance our understanding of the mechanisms of obesity-associated diseases.
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Affiliation(s)
- Masashi Satoh
- Department of Immunology, Kitasato University School of Medicine, Sagamihara, Japan
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30
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Bradley D, Deng T, Shantaram D, Hsueh WA. Orchestration of the Adipose Tissue Immune Landscape by Adipocytes. Annu Rev Physiol 2024; 86:199-223. [PMID: 38345903 DOI: 10.1146/annurev-physiol-042222-024353] [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: 02/15/2024]
Abstract
Obesity is epidemic and of great concern because of its comorbid and costly inflammatory-driven complications. Extensive investigations in mice have elucidated highly coordinated, well-balanced interactions between adipocytes and immune cells in adipose tissue that maintain normal systemic metabolism in the lean state, while in obesity, proinflammatory changes occur in nearly all adipose tissue immune cells. Many of these changes are instigated by adipocytes. However, less is known about obesity-induced adipose-tissue immune cell alterations in humans. Upon high-fat diet feeding, the adipocyte changes its well-known function as a metabolic cell to assume the role of an immune cell, orchestrating proinflammatory changes that escalate inflammation and progress during obesity. This transformation is particularly prominent in humans. In this review, we (a) highlight a leading and early role for adipocytes in promulgating inflammation, (b) discuss immune cell changes and the time course of these changes (comparing humans and mice when possible), and (c) note how reversing proinflammatory changes in most types of immune cells, including adipocytes, rescues adipose tissue from inflammation and obese mice from insulin resistance.
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Affiliation(s)
- David Bradley
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA;
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Pennsylvania State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA;
| | - Tuo Deng
- Second Xiangya Hospital, Central South University, Changsha, China
| | - Dharti Shantaram
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA;
| | - Willa A Hsueh
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA;
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31
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Yu Y, Lu C, Yu W, Lei Y, Sun S, Liu P, Bai F, Chen Y, Chen J. B Cells Dynamic in Aging and the Implications of Nutritional Regulation. Nutrients 2024; 16:487. [PMID: 38398810 PMCID: PMC10893126 DOI: 10.3390/nu16040487] [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: 01/07/2024] [Revised: 02/01/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Aging negatively affects B cell production, resulting in a decrease in B-1 and B-2 cells and impaired antibody responses. Age-related B cell subsets contribute to inflammation. Investigating age-related alterations in the B-cell pool and developing targeted therapies are crucial for combating autoimmune diseases in the elderly. Additionally, optimal nutrition, including carbohydrates, amino acids, vitamins, and especially lipids, play a vital role in supporting immune function and mitigating the age-related decline in B cell activity. Research on the influence of lipids on B cells shows promise for improving autoimmune diseases. Understanding the aging B-cell pool and considering nutritional interventions can inform strategies for promoting healthy aging and reducing the age-related disease burden.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Juan Chen
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100091, China; (Y.Y.)
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32
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Cui M, Wu H, An Y, Liu Y, Wei L, Qi X. Identification of important modules and biomarkers in diabetic cardiomyopathy based on WGCNA and LASSO analysis. Front Endocrinol (Lausanne) 2024; 15:1185062. [PMID: 38469146 PMCID: PMC10926887 DOI: 10.3389/fendo.2024.1185062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 01/25/2024] [Indexed: 03/13/2024] Open
Abstract
Background Diabetic cardiomyopathy (DCM) lacks specific and sensitive biomarkers, and its diagnosis remains a challenge. Therefore, there is an urgent need to develop useful biomarkers to help diagnose and evaluate the prognosis of DCM. This study aims to find specific diagnostic markers for diabetic cardiomyopathy. Methods Two datasets (GSE106180 and GSE161827) from the GEO database were integrated to identify differentially expressed genes (DEGs) between control and type 2 diabetic cardiomyopathy. We assessed the infiltration of immune cells and used weighted coexpression network analysis (WGCNA) to construct the gene coexpression network. Then we performed a clustering analysis. Finally, a diagnostic model was built by the least absolute shrinkage and selection operator (LASSO). Results A total of 3066 DEGs in the GSE106180 and GSE161827 datasets. There were differences in immune cell infiltration. According to gene significance (GS) > 0.2 and module membership (MM) > 0.8, 41 yellow Module genes and 1474 turquoise Module genes were selected. Hub genes were mainly related to the "proteasomal protein catabolic process", "mitochondrial matrix" and "protein processing in endoplasmic reticulum" pathways. LASSO was used to construct a diagnostic model composed of OXCT1, CACNA2D2, BCL7B, EGLN3, GABARAP, and ACADSB and verified it in the GSE163060 and GSE175988 datasets with AUCs of 0.9333 (95% CI: 0.7801-1) and 0.96 (95% CI: 0.8861-1), respectively. H9C2 cells were verified, and the results were similar to the bioinformatics analysis. Conclusion We constructed a diagnostic model of DCM, and OXCT1, CACNA2D2, BCL7B, EGLN3, GABARAP, and ACADSB were potential biomarkers, which may provide new insights for improving the ability of early diagnosis and treatment of diabetic cardiomyopathy.
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Affiliation(s)
- Min Cui
- School of Medicine, Nankai University, Tianjin, China
| | - Hao Wu
- School of Medicine, Nankai University, Tianjin, China
- Department of Cardiology, Tianjin Union Medical Center, Tianjin, China
| | - Yajuan An
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yue Liu
- School of Medicine, Nankai University, Tianjin, China
- Department of Cardiology, Tianjin Union Medical Center, Tianjin, China
| | - Liping Wei
- School of Medicine, Nankai University, Tianjin, China
- Department of Cardiology, Tianjin Union Medical Center, Tianjin, China
| | - Xin Qi
- School of Medicine, Nankai University, Tianjin, China
- Department of Cardiology, Tianjin Union Medical Center, Tianjin, China
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33
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Deng X, Liu D, Li M, He J, Fu Y. Association between systemic immune-inflammation index and insulin resistance and mortality. Sci Rep 2024; 14:2013. [PMID: 38263234 PMCID: PMC10806274 DOI: 10.1038/s41598-024-51878-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: 10/19/2023] [Accepted: 01/10/2024] [Indexed: 01/25/2024] Open
Abstract
The role of inflammation in disease promotion is significant, yet the precise association between a newly identified inflammatory biomarker and insulin resistance (IR) and mortality remains uncertain. We aim to explore the potential correlation between systemic immune-inflammation index (SII) and these factors. We used data from 2011 to 2016 of National Health and Nutrition Examination Survey, and multivariate logistic regression and restricted cubic spline were employed. Subgroup and interaction analysis were conducted to recognize the consistency of the results. The association between SII and mortality was described by survival analysis. 6734 participants were enrolled, of whom 49.3% (3318) exhibited IR and 7.02% experienced mortality. Multivariate logistic regression revealed that individuals in the highest quartile (Q4) of SII had a significantly increased risk of IR compared to those in the lowest quartile (Q1). We then identified a linear association between SII and IR with an inflection point of 407, but may be influenced by gender. Similarly, compared to Q1, people whose SII at Q4 showed a higher all-cause and cardiovascular mortality. It showed a significant association between SII and both all-cause and cardiovascular mortality, but the results need to be interpreted with caution.
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Affiliation(s)
- Xiaoqi Deng
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Dichuan Liu
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Miao Li
- Nursing Department, Beijing Tiantan Hospital, Beijing, 100070, China
| | - Jie He
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Yufan Fu
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
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34
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Zeng P, Jiang C, Liu A, Yang X, Lin F, Cheng L. Association of systemic immunity-inflammation index with metabolic syndrome in U.S. adult: a cross-sectional study. BMC Geriatr 2024; 24:61. [PMID: 38225566 PMCID: PMC10788994 DOI: 10.1186/s12877-023-04635-1] [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] [Received: 07/26/2023] [Accepted: 12/24/2023] [Indexed: 01/17/2024] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) is a pathological condition characterized by the abnormal clustering of several metabolic components and has become a major public health concern. We aim to investigate the potential link of Systemic immunity-inflammation index (SII) on MetS and its components. METHODS AND RESULT Weighted multivariable logistic regression was conducted to assess the relationship between SII and MetS and its components. Restricted cubic spline (RCS) model and threshold effect analysis were also performed. A total of 6,999 U.S. adults were enrolled. Multivariate model found that SII were positively associated with MetS (OR = 1.18;95CI%:1.07-1.30) and hypertension (OR = 1.22; 95CI%:1.12-1.34) in a dose-dependent manner. When SII was converted into a categorical variable, the risk of MetS increased by 36% and the risk of hypertension increased by 53% in the highest quantile of SIIs. The RCS model confirmed linear associations between SII and MetS, as well as a non-linear association between SII and certain components of MetS, including hypertension, hyperglycemia, low HDL, and hyperlipidemia. Meanwhile, the relationship between SII and hypertension presents a J-shaped curve with a threshold of 8.27, above which the risk of hypertension increases. Furthermore, in MetS and hypertension, age, sex, body mass index (BMI), and race were not significantly associated with this positive association based on subgroup analyses and interaction tests(p for interaction > 0.05). CONCLUSIONS The present study indicated that there was a higher SII association with an increased risk of MetS and hypertension in adults. However, further prospective cohort studies are required to establish a causal relationship between SII and MetS, as well as its components.
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Affiliation(s)
- Peng Zeng
- Department of Cardiology, Shenzhen People's Hospital, Shenzhen, 518000, China
| | - Cheng Jiang
- Department of Cardiology, Shenzhen People's Hospital, Shenzhen, 518000, China
| | - Anbang Liu
- Shandong First Medical University, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250000, China
| | - Xinyuan Yang
- Department of Cardiology, Shenzhen People's Hospital, Shenzhen, 518000, China
| | - Feng Lin
- Department of Cardiology, Shenzhen People's Hospital, Shenzhen, 518000, China.
| | - Lingli Cheng
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan City People's Hospital, Qingyuan, 511518, Guangdong, China.
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Mitchelson KAJ, O’Connell F, O’Sullivan J, Roche HM. Obesity, Dietary Fats, and Gastrointestinal Cancer Risk-Potential Mechanisms Relating to Lipid Metabolism and Inflammation. Metabolites 2024; 14:42. [PMID: 38248845 PMCID: PMC10821017 DOI: 10.3390/metabo14010042] [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: 11/28/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/23/2024] Open
Abstract
Obesity is a major driving factor in the incidence, progression, and poor treatment response in gastrointestinal cancers. Herein, we conducted a comprehensive analysis of the impact of obesity and its resulting metabolic perturbations across four gastrointestinal cancer types, namely, oesophageal, gastric, liver, and colorectal cancer. Importantly, not all obese phenotypes are equal. Obese adipose tissue heterogeneity depends on the location, structure, cellular profile (including resident immune cell populations), and dietary fatty acid intake. We discuss whether adipose heterogeneity impacts the tumorigenic environment. Dietary fat quality, in particular saturated fatty acids, promotes a hypertrophic, pro-inflammatory adipose profile, in contrast to monounsaturated fatty acids, resulting in a hyperplastic, less inflammatory adipose phenotype. The purpose of this review is to examine the impact of obesity, including dietary fat quality, on adipose tissue biology and oncogenesis, specifically focusing on lipid metabolism and inflammatory mechanisms. This is achieved with a particular focus on gastrointestinal cancers as exemplar models of obesity-associated cancers.
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Affiliation(s)
- Kathleen A. J. Mitchelson
- Nutrigenomics Research Group, UCD Conway Institute, UCD Institute of Food and Health, and School of Public Health, Physiotherapy and Sports Science, University College Dublin, D04 H1W8 Dublin, Ireland
| | - Fiona O’Connell
- Department of Surgery, Trinity St. James’s Cancer Institute and Trinity Translational Medicine Institute, St. James’s Hospital and Trinity College Dublin, D08 W9RT Dublin, Ireland
| | - Jacintha O’Sullivan
- Department of Surgery, Trinity St. James’s Cancer Institute and Trinity Translational Medicine Institute, St. James’s Hospital and Trinity College Dublin, D08 W9RT Dublin, Ireland
| | - Helen M. Roche
- Nutrigenomics Research Group, UCD Conway Institute, UCD Institute of Food and Health, and School of Public Health, Physiotherapy and Sports Science, University College Dublin, D04 H1W8 Dublin, Ireland
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Belfast BT9 5DL, UK
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Jiang Y, Gong F. Immune cells in adipose tissue microenvironment under physiological and obese conditions. Endocrine 2024; 83:10-25. [PMID: 37768512 DOI: 10.1007/s12020-023-03521-5] [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: 07/25/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023]
Abstract
PURPOSE This review will focus on the immune cells in adipose tissue microenvironment and their regulatory roles in metabolic homeostasis of adipose tissue and even the whole body under physiological and obese conditions. METHODS This review used PubMed searches of current literature to examine adipose tissue immune cells and cytokines, as well as the complex interactions between them. RESULTS Aside from serving as a passive energy depot, adipose tissue has shown specific immunological function. Adipose tissue microenvironment is enriched with a large number of immune cells and cytokines, whose physiological regulation plays a crucial role for metabolic homeostasis. However, obesity causes pro-inflammatory alterations in these adipose tissue immune cells, which have detrimental effects on metabolism and increase the susceptibility of individuals to the obesity related diseases. CONCLUSIONS Adipose tissue microenvironment is enriched with various immune cells and cytokines, which regulate metabolic homeostasis of adipose tissue and even the whole body, whether under physiological or obese conditions. Targeting key immune cells and cytokines in adipose tissue microenvironment for obesity treatment becomes an attractive research point.
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Affiliation(s)
- Yuchen Jiang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing, 100730, China
| | - Fengying Gong
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing, 100730, China.
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37
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Gao F, Litchfield B, Wu H. Adipose tissue lymphocytes and obesity. THE JOURNAL OF CARDIOVASCULAR AGING 2024; 4:5. [PMID: 38455510 PMCID: PMC10919906 DOI: 10.20517/jca.2023.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Obesity is associated with chronic inflammation in adipose tissue (AT), mainly evidenced by infiltration and phenotypic changes of various types of immune cells. Macrophages are the major innate immune cells and represent the predominant immune cell population within AT. Lymphocytes, including T cells and B cells, are adaptive immune cells and constitute another important immune cell population in AT. In obesity, CD8+ effector memory T cells, CD4+ Th1 cells, and B2 cells are increased in AT and promote AT inflammation, while regulatory T cells and Th2 cells, which usually function as immune regulatory or type 2 inflammatory cells, are reduced in AT. Immune cells may regulate the metabolism of adipocytes and other cells through various mechanisms, contributing to the development of metabolic diseases, including insulin resistance and type 2 diabetes. Efforts targeting immune cells and inflammation to prevent and treat obesity-linked metabolic disease have been explored, but have not yielded significant success in clinical studies. This review provides a concise overview of the changes in lymphocyte populations within AT and their potential role in AT inflammation and the regulation of metabolic functions in the context of obesity.
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Affiliation(s)
- Feng Gao
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Huaizhu Wu
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
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38
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Fajkić A, Jahić R, Begić E, Dervišević A, Kurtović A, Lepara O. Complete blood count inflammation derived indexes as predictors of metabolic syndrome in type 2 diabetes mellitus. Technol Health Care 2024; 32:2321-2330. [PMID: 38251075 DOI: 10.3233/thc-231101] [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: 01/23/2024]
Abstract
BACKGROUND Metabolic syndrome (MetS) is a group of comorbidities related to regulating hyperglycemia and acute cardiovascular incidents and complications. With the increasing prevalence in individuals with type 2 diabetes mellitus (T2DM), MetS represents an increasing public health problem and clinical challenge, and early diagnosis is necessary to avoid the accelerated development of diabetic complications. OBJECTIVE To investigate the role of Complete Blood Count-derived Inflammation Indexes (CBCIIs) in predicting MetS in T2DM individuals. METHODS The study was designed as a two-year prospective study and included 80 T2DM individuals divided into MetS and non-MetS groups based on MetS development over two years. The sera samples were analyzed for complete blood count parameters and C-reactive protein (CRP). Based on the laboratory test results, 13 CBCIIs were calculated and analyzed. The receiver operating characteristic (ROC) curve and their corresponding areas under the curve (AUC) were used to determine prognostic accuracy. RESULTS There were significant differences between T2DM participants with Mets and those without MetS concerning Neutrophil to Platelet Ratio (NPR) values (p< 0.001), Neutrophil to Lymphocyte and Platelet Ratio (NLPR) (p< 0.001), Platelet to Lymphocyte Ratio (PLR) (p< 0.001), Lymphocyte to C-reactive protein Ratio (LCR) (p< 0.001), C-reactive protein to Lymphocyte Ratio (CRP/Ly) (p< 0.001), Systemic immune inflammation index (SII) (< 0.001), and Aggregate Index of Systemic Inflammation (AISI) (p= 0.005). The results of ROC curve analysis have shown that the LCR (AUC of 0.907), CRP/Ly (AUC of 0.907) can serve as excellent predictors, but NPR (AUC of 0.734), NLRP (AUC of 0.755), PLR (AUC of 0.823), SII (AUC of 0.745), and AISI (AUC of 0.688) as good predictors of MetS in T2 DM individuals. CONCLUSION This study confirms the reliability of the CBCIIs as novel, simple, low cost and valuable predictors of MetS developing in T2DM.
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Affiliation(s)
- Almir Fajkić
- Department of Pathophysiology, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Rijad Jahić
- General Hospital "Prim. Dr. Abdulah Nakas", Sarajevo, Bosnia and Herzegovina
| | - Edin Begić
- Department of Pharmacology, Sarajevo Medical School, Sarajevo School of Science and Technology, Sarajevo, Bosnia and Herzegovina
- Department of Cardiology, General Hospital "Prim. Dr. Abdulah Nakas", Sarajevo, Bosnia and Herzegovina
| | - Amela Dervišević
- Department of Physiology, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Avdo Kurtović
- Clinical Center University of Tuzla, Tuzla, Bosnia and Herzegovina
| | - Orhan Lepara
- Department of Physiology, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
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Tran V, Brettle H, Diep H, Dinh QN, O'Keeffe M, Fanson KV, Sobey CG, Lim K, Drummond GR, Vinh A, Jelinic M. Sex-specific effects of a high fat diet on aortic inflammation and dysfunction. Sci Rep 2023; 13:21644. [PMID: 38062083 PMCID: PMC10703842 DOI: 10.1038/s41598-023-47903-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
Obesity and vascular dysfunction are independent and sexually dimorphic risk factors for cardiovascular disease. A high fat diet (HFD) is often used to model obesity in mice, but the sex-specific effects of this diet on aortic inflammation and function are unclear. Therefore, we characterized the aortic immune cell profile and function in 6-week-old male and female C57BL/6 mice fed a normal chow diet (NCD) or HFD for 10 weeks. Metabolic parameters were measured weekly and fortnightly. At end point, aortic immune cell populations and endothelial function were characterized using flow cytometry and wire myography. HFD-male mice had higher bodyweight, blood cholesterol, fasting blood glucose and plasma insulin levels than NCD mice (P < 0.05). HFD did not alter systolic blood pressure (SBP), glycated hemoglobin or blood triglycerides in either sex. HFD-females had delayed increases in bodyweight with a transient increase in fasting blood glucose at week 8 (P < 0.05). Flow cytometry revealed fewer proinflammatory aortic monocytes in females fed a HFD compared to NCD. HFD did not affect aortic leukocyte populations in males. Conversely, HFD impaired endothelium-dependent vasorelaxation, but only in males. Overall, this highlights biological sex as a key factor determining vascular disease severity in HFD-fed mice.
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Affiliation(s)
- Vivian Tran
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Holly Brettle
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Henry Diep
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Quynh Nhu Dinh
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Maeve O'Keeffe
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
- Department of Animal, Plant and Soil Sciences, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Kerry V Fanson
- Department of Animal, Plant and Soil Sciences, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Christopher G Sobey
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Kyungjoon Lim
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Grant R Drummond
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Antony Vinh
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia
| | - Maria Jelinic
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, Australia.
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40
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Zhang X, Gao L, Meng H, Zhang A, Liang Y, Lu J. Obesity alters immunopathology in cancers and inflammatory diseases. Obes Rev 2023; 24:e13638. [PMID: 37724622 DOI: 10.1111/obr.13638] [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: 07/28/2022] [Revised: 08/11/2023] [Accepted: 08/24/2023] [Indexed: 09/21/2023]
Abstract
Obesity is characterized by chronic low-grade inflammation and is strongly associated with multiple immunological diseases, including cancer and inflammatory diseases. Recent animal studies revealed that obesity-induced immunological changes worsen immune-driven diseases and cause resistance to immunotherapy. Here, we discuss the role of obesity in the immunopathology and treatment responses of cancers, respiratory and allergic diseases, and IL-17-mediated inflammatory diseases. We summarize the unique features of the inflammatory state of these diseases, which are orchestrated by obesity. In particular, obesity alters the immune landscape in cancers with a reprogrammed metabolic profile of tumor-infiltrating immune cells. Obesity exacerbates airway inflammation by dysregulating multiple immune-cell subsets. Obesity also dysregulates Th17, IL-17-producing mucosal-associated invariant T (MAIT), and γδ T cells, which contribute to IL-17-mediated inflammatory response in multiple sclerosis, inflammatory bowel disease, psoriasis, atopic dermatitis, and rheumatoid arthritis. By identifying the effects of obesity on immunological diseases, new strategies could be devised to target immune dysregulation caused by obesity.
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Affiliation(s)
- Xiaofen Zhang
- Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Li Gao
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Haiyang Meng
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ailing Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yan Liang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jingli Lu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Schleh MW, Caslin HL, Garcia JN, Mashayekhi M, Srivastava G, Bradley AB, Hasty AH. Metaflammation in obesity and its therapeutic targeting. Sci Transl Med 2023; 15:eadf9382. [PMID: 37992150 PMCID: PMC10847980 DOI: 10.1126/scitranslmed.adf9382] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 08/29/2023] [Indexed: 11/24/2023]
Abstract
Obesity-associated inflammation is a systemic process that affects all metabolic organs. Prominent among these is adipose tissue, where cells of the innate and adaptive immune system are markedly changed in obesity, implicating these cells in a range of processes linking immune memory to metabolic regulation. Furthermore, weight loss and weight cycling have unexpected effects on adipose tissue immune populations. Here, we review the current literature on the roles of various immune cells in lean and obese adipose tissue. Within this context, we discuss pharmacological and nonpharmacological approaches to obesity treatment and their impact on systemic inflammation.
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Affiliation(s)
- Michael W. Schleh
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Heather L. Caslin
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Jamie N. Garcia
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Mona Mashayekhi
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Gitanjali Srivastava
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Vanderbilt Weight Loss Center, Vanderbilt University Medical Center, Nashville, TN 37204 USA
| | - Anna B. Bradley
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Vanderbilt Weight Loss Center, Vanderbilt University Medical Center, Nashville, TN 37204 USA
- VA Tennessee Valley Healthcare System, Nashville, TN 37212, USA
| | - Alyssa H. Hasty
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
- VA Tennessee Valley Healthcare System, Nashville, TN 37212, USA
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42
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Pal A, Lin CT, Boykov I, Benson E, Kidd G, Fisher-Wellman KH, Neufer PD, Shaikh SR. High Fat Diet-Induced Obesity Dysregulates Splenic B Cell Mitochondrial Activity. Nutrients 2023; 15:4807. [PMID: 38004202 PMCID: PMC10675399 DOI: 10.3390/nu15224807] [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: 10/16/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Diet-induced obesity impairs mitochondrial respiratory responses in tissues that are highly metabolically active, such as the heart. However, less is known about the impact of obesity on the respiratory activity of specific cell types, such as splenic B cells. B cells are of relevance, as they play functional roles in obesity-induced insulin resistance, inflammation, and responses to infection. Here, we tested the hypothesis that high-fat-diet (HFD)-induced obesity could impair the mitochondrial respiration of intact and permeabilized splenic CD19+ B cells isolated from C57BL/6J mice and activated ex vivo with lipopolysaccharide (LPS). High-resolution respirometry was used with intact and permeabilized cells. To reveal potential mechanistic targets by which HFD-induced obesity dysregulates B cell mitochondria, we conducted proteomic analyses and 3D serial block face scanning electron microscopy (SBFEM). High-resolution respirometry revealed that intact LPS-stimulated B cells of obese mice, relative to controls, displayed lower ATP-linked, as well as maximal uncoupled, respiration. To directly investigate mitochondrial function, we used permeabilized LPS-stimulated B cells, which displayed increased H2O2 emission and production with obesity. We also examined oxidative phosphorylation efficiency simultaneously, which revealed that oxygen consumption and ATP production were decreased in LPS-stimulated B cells with obesity relative to controls. Despite minimal changes in total respiratory complex abundance, in LPS-stimulated B cells of obese mice, three of the top ten most downregulated proteins were all accessory subunits of respiratory complex I. SBFEM showed that B cells of obese mice, compared to controls, underwent no change in mitochondrial cristae integrity but displayed increased mitochondrial volume that was linked to bioenergetic function. Collectively, these results establish a proof of concept that HFD-induced obesity dysregulates the mitochondrial bioenergetic metabolism of activated splenic B cells.
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Affiliation(s)
- Anandita Pal
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
| | - Chien-Te Lin
- East Carolina Diabetes and Obesity Institute, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA; (C.-T.L.); (I.B.); (K.H.F.-W.)
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA
| | - Ilya Boykov
- East Carolina Diabetes and Obesity Institute, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA; (C.-T.L.); (I.B.); (K.H.F.-W.)
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA
| | - Emily Benson
- 3D-EM Ultrastructural Imaging and Computation Core, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44106, USA; (E.B.); (G.K.)
| | - Grahame Kidd
- 3D-EM Ultrastructural Imaging and Computation Core, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44106, USA; (E.B.); (G.K.)
| | - Kelsey H. Fisher-Wellman
- East Carolina Diabetes and Obesity Institute, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA; (C.-T.L.); (I.B.); (K.H.F.-W.)
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA
| | - P. Darrell Neufer
- East Carolina Diabetes and Obesity Institute, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA; (C.-T.L.); (I.B.); (K.H.F.-W.)
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA
- Department of Biochemistry and Molecular Biology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA
| | - Saame Raza Shaikh
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
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43
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Barrow F, Wang H, Fredrickson G, Florczak K, Ciske E, Khanal S, Parthiban P, Nguyen H, Rios E, Kostallari E, Revelo XS. Pyruvate Oxidation Sustains B Cell Antigen-Specific Activation to Exacerbate MASH. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.13.566832. [PMID: 38014163 PMCID: PMC10680643 DOI: 10.1101/2023.11.13.566832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
B cells play a crucial role in the pathogenesis of metabolic dysfunction-associated steatohepatitis (MASH), a severe form of steatotic liver disease that if persistent can lead to cirrhosis, liver failure, and cancer. Chronic inflammation and fibrosis are key features of MASH that determine disease progression and outcomes. Recent advances have revealed that pathogenic B cell-derived cytokines and antibodies promote the development of MASH. However, the mechanisms through which B cells promote fibrosis and the metabolic adaptations underlying their pathogenic responses remain unclear. Here, we report that a subset of mature B cells with heightened cytokine responses accumulate in the liver and promote inflammation in MASH. To meet the increased energetic demand of effector responses, B cells increase their ATP production via oxidative phosphorylation (OXPHOS) fueled by pyruvate oxidation in a B cell receptor (BCR)-specific manner. Blocking pyruvate oxidation completely abrogated the inflammatory capacity of MASH B cells. Accordingly, the restriction of the BCR led to MASH attenuation, including reductions in steatosis, hepatic inflammation, and fibrosis. Mechanistically, BCR restriction decreased B cell maturation, activation, and effector responses in the liver, accompanied by decreased T cell- and macrophage-mediated inflammation. Notably, attenuated liver fibrosis in BCR-restricted mice was associated with lower IgG production and decreased expression of Fc-gamma receptors on hepatic stellate cells. Together, these findings indicate a key role for B cell antigen-specific responses in promoting steatosis, inflammation, and fibrosis during MASH.
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Affiliation(s)
- Fanta Barrow
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis MN 55455, USA
| | - Haiguang Wang
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis MN 55455, USA
| | - Gavin Fredrickson
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis MN 55455, USA
| | - Kira Florczak
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis MN 55455, USA
| | - Erin Ciske
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis MN 55455, USA
| | - Shalil Khanal
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Preethy Parthiban
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis MN 55455, USA
| | - Huy Nguyen
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis MN 55455, USA
| | - Enrique Rios
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis MN 55455, USA
| | - Enis Kostallari
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Xavier S. Revelo
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis MN 55455, USA
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44
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Ruck L, Wiegand S, Kühnen P. Relevance and consequence of chronic inflammation for obesity development. Mol Cell Pediatr 2023; 10:16. [PMID: 37957462 PMCID: PMC10643747 DOI: 10.1186/s40348-023-00170-6] [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: 07/09/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Increasing prevalence of morbid obesity accompanied by comorbidities like type 2 diabetes mellitus (T2DM) led to a demand for improving therapeutic strategies and pharmacological intervention options. Apart from genetics, inflammation processes have been hypothesized to be of importance for the development of obesity and related aspects like insulin resistance. MAIN TEXT Within this review, we provide an overview of the intricate interplay between chronic inflammation of the adipose tissue and the hypothalamus and the development of obesity. Further understanding of this relationship might improve the understanding of the underlying mechanism and may be of relevance for the establishment of new treatment strategies.
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Affiliation(s)
- Lisa Ruck
- Klinik Für Pädiatrische Endokrinologie und Diabetologie, Charité Universitätsmedizin, Berlin, Germany.
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Junior Clinician Scientist Program, Charitéplatz 1, 10117, Berlin, Germany.
| | - Susanna Wiegand
- Abteilung Interdisziplinär, Sozial-Pädiatrisches Zentrum, Charité Universitätsmedizin, Berlin, Germany
| | - Peter Kühnen
- Klinik Für Pädiatrische Endokrinologie und Diabetologie, Charité Universitätsmedizin, Berlin, Germany
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45
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Hsu WL, Hsieh YT, Chen WM, Chien MH, Luo WJ, Chang JH, Devlin K, Su KY. High-fat diet induces C-reactive protein secretion, promoting lung adenocarcinoma via immune microenvironment modulation. Dis Model Mech 2023; 16:dmm050360. [PMID: 37929799 PMCID: PMC10651111 DOI: 10.1242/dmm.050360] [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: 06/26/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023] Open
Abstract
To understand the effects of a high-fat diet (HFD) on lung cancer progression and biomarkers, we here used an inducible mutant epidermal growth factor receptor (EGFR)-driven lung cancer transgenic mouse model fed a regular diet (RD) or HFD. The HFD lung cancer (LC-HFD) group exhibited significant tumor formation and deterioration, such as higher EGFR activity and proliferation marker expression, compared with the RD lung cancer (LC-RD) group. Transcriptomic analysis of the lung tissues revealed that the significantly changed genes in the LC-HFD group were highly enriched in immune-related signaling pathways, suggesting that an HFD alters the immune microenvironment to promote tumor growth. Cytokine and adipokine arrays combined with a comprehensive analysis using meta-database software indicated upregulation of C-reactive protein (CRP) in the LC-HFD group, which presented with increased lung cancer proliferation and metastasis; this was confirmed experimentally. Our results imply that an HFD can turn the tumor growth environment into an immune-related pro-tumorigenic microenvironment and demonstrate that CRP has a role in promoting lung cancer development in this microenvironment.
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Affiliation(s)
- Wei-Lun Hsu
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei 10055, Taiwan
| | - Yun-Ting Hsieh
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei 10055, Taiwan
| | - Wei-Ming Chen
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei 10055, Taiwan
| | - Min-Hui Chien
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei 10055, Taiwan
| | - Wei-Jia Luo
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei 10055, Taiwan
| | - Jung-Hsuan Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei 10055, Taiwan
| | - Kevin Devlin
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei 10055, Taiwan
| | - Kang-Yi Su
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei 10055, Taiwan
- Genome and Systems Biology Degree Program, National Taiwan University and Academia Sinica, Taipei 10617, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei 10055, Taiwan
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46
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Yu L, Guo S, Ji W, Sun H, Lee S, Zhang D. Intervention Effects of Physical Activity on Type 2 Diabetic Patients Potentially Infected with COVID-19. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1772. [PMID: 37893490 PMCID: PMC10608032 DOI: 10.3390/medicina59101772] [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: 09/10/2023] [Revised: 10/01/2023] [Accepted: 10/03/2023] [Indexed: 10/29/2023]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has clearly had a great influence on the lifestyles of the population, especially on patients with type 2 diabetes mellitus. During the COVID-19 outbreak, many countries/regions implemented social-isolation measures, leading to an increase in negative behaviors and impairing the capability of diabetic patients to resist COVID-19, ultimately causing severe prognoses. Moreover, as the epidemic progressed, multiple studies emphasized the significance of physical exercise in the management of type 2 diabetic patients infected with COVID-19. In this study, we selected research from 1 December 2019 to 9 August 2023 that focused on COVID-19-infected diabetic patients to investigate the impact of type 2 diabetes on the immune functions, inflammation factor levels, lung injuries, and mental disorders of such patients, as well as to assess the risk of novel coronavirus pneumonia in these patients. Additionally, the effects of high-intensity, moderate-intensity, and low-intensity exercises on novel coronavirus pneumonia infection in type 2 diabetic patients and the mechanisms of the effects of such exercise were considered. We concluded that elderly diabetic patients with COVID-19 should perform low-intensity exercises to facilitate their recoveries. This study offers guidance for a proper understanding of the dangers of diabetes and the use of appropriate measures to reduce the risk of novel coronavirus pneumonia infections in type 2 diabetic patients.
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Affiliation(s)
- Lihua Yu
- College of Arts and Sports, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; (L.Y.)
- Institute of Public Foundations, University of Health and Rehabilitation Sciences, Qingdao 266000, China
| | - Sainyu Guo
- College of Arts and Sports, Myongji University, Seoul 04763, Republic of Korea
| | - Wen Ji
- College of Arts and Sports, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; (L.Y.)
| | - Hailian Sun
- College of Arts and Sports, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; (L.Y.)
| | - Seongno Lee
- College of Arts and Sports, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; (L.Y.)
| | - Deju Zhang
- Food and Nutritional Sciences, School of Biological Sciences, The University of Hong Kong, Pokfulam Road, 0000, Hong Kong
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47
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Chan KL, Poller WC, Swirski FK, Russo SJ. Central regulation of stress-evoked peripheral immune responses. Nat Rev Neurosci 2023; 24:591-604. [PMID: 37626176 PMCID: PMC10848316 DOI: 10.1038/s41583-023-00729-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2023] [Indexed: 08/27/2023]
Abstract
Stress-linked psychiatric disorders, including anxiety and major depressive disorder, are associated with systemic inflammation. Recent studies have reported stress-induced alterations in haematopoiesis that result in monocytosis, neutrophilia, lymphocytopenia and, consequently, in the upregulation of pro-inflammatory processes in immunologically relevant peripheral tissues. There is now evidence that this peripheral inflammation contributes to the development of psychiatric symptoms as well as to common co-morbidities of psychiatric disorders such as metabolic syndrome and immunosuppression. Here, we review the specific brain and spinal regions, and the neuronal populations within them, that respond to stress and transmit signals to peripheral tissues via the autonomic nervous system or neuroendocrine pathways to influence immunological function. We comprehensively summarize studies that have employed retrograde tracing to define neurocircuits linking the brain to the bone marrow, spleen, gut, adipose tissue and liver. Moreover, we highlight studies that have used chemogenetic or optogenetic manipulation or intracerebroventricular administration of peptide hormones to control somatic immune responses. Collectively, this growing body of literature illustrates potential mechanisms through which stress signals are conveyed from the CNS to immune cells to regulate stress-relevant behaviours and comorbid pathophysiology.
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Affiliation(s)
- Kenny L Chan
- Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Brain and Body Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Wolfram C Poller
- Brain and Body Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Filip K Swirski
- Brain and Body Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Scott J Russo
- Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Brain and Body Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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48
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Cai X, Xue Z, Zeng FF, Tang J, Yue L, Wang B, Ge W, Xie Y, Miao Z, Gou W, Fu Y, Li S, Gao J, Shuai M, Zhang K, Xu F, Tian Y, Xiang N, Zhou Y, Shan PF, Zhu Y, Chen YM, Zheng JS, Guo T. Population serum proteomics uncovers a prognostic protein classifier for metabolic syndrome. Cell Rep Med 2023; 4:101172. [PMID: 37652016 PMCID: PMC10518601 DOI: 10.1016/j.xcrm.2023.101172] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 09/02/2023]
Abstract
Metabolic syndrome (MetS) is a complex metabolic disorder with a global prevalence of 20%-25%. Early identification and intervention would help minimize the global burden on healthcare systems. Here, we measured over 400 proteins from ∼20,000 proteomes using data-independent acquisition mass spectrometry for 7,890 serum samples from a longitudinal cohort of 3,840 participants with two follow-up time points over 10 years. We then built a machine-learning model for predicting the risk of developing MetS within 10 years. Our model, composed of 11 proteins and the age of the individuals, achieved an area under the curve of 0.774 in the validation cohort (n = 242). Using linear mixed models, we found that apolipoproteins, immune-related proteins, and coagulation-related proteins best correlated with MetS development. This population-scale proteomics study broadens our understanding of MetS and may guide the development of prevention and targeted therapies for MetS.
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Affiliation(s)
- Xue Cai
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China
| | - Zhangzhi Xue
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China
| | - Fang-Fang Zeng
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou 510080, China
| | - Jun Tang
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China
| | - Liang Yue
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China; Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China
| | - Bo Wang
- Westlake Omics (Hangzhou) Biotechnology Co., Ltd., No. 1 Yunmeng Road, Cloud Town, Xihu District, Hangzhou, Zhejiang 310024, China
| | - Weigang Ge
- Westlake Omics (Hangzhou) Biotechnology Co., Ltd., No. 1 Yunmeng Road, Cloud Town, Xihu District, Hangzhou, Zhejiang 310024, China
| | - Yuting Xie
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China; Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China
| | - Zelei Miao
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China
| | - Wanglong Gou
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China
| | - Yuanqing Fu
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China
| | - Sainan Li
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China; Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China
| | - Jinlong Gao
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China; Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China
| | - Menglei Shuai
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China
| | - Ke Zhang
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China
| | - Fengzhe Xu
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China
| | - Yunyi Tian
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China
| | - Nan Xiang
- Westlake Omics (Hangzhou) Biotechnology Co., Ltd., No. 1 Yunmeng Road, Cloud Town, Xihu District, Hangzhou, Zhejiang 310024, China
| | - Yan Zhou
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China; Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China
| | - Peng-Fei Shan
- Department of Endocrinology, the Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, Zhejiang 310009, China
| | - Yi Zhu
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China; Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China.
| | - Yu-Ming Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Ju-Sheng Zheng
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China.
| | - Tiannan Guo
- Center for Intelligent Proteomics, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China; Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China.
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49
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Khan S, Chakraborty M, Wu F, Chen N, Wang T, Chan YT, Sayad A, Vásquez JDS, Kotlyar M, Nguyen K, Huang Y, Alibhai FJ, Woo M, Li RK, Husain M, Jurisica I, Gehring AJ, Ohashi PS, Furman D, Tsai S, Winer S, Winer DA. B Cells Promote T Cell Immunosenescence and Mammalian Aging Parameters. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.12.556363. [PMID: 38529494 PMCID: PMC10962733 DOI: 10.1101/2023.09.12.556363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
A dysregulated adaptive immune system is a key feature of aging, and is associated with age-related chronic diseases and mortality. Most notably, aging is linked to a loss in the diversity of the T cell repertoire and expansion of activated inflammatory age-related T cell subsets, though the main drivers of these processes are largely unknown. Here, we find that T cell aging is directly influenced by B cells. Using multiple models of B cell manipulation and single-cell omics, we find B cells to be a major cell type that is largely responsible for the age-related reduction of naive T cells, their associated differentiation towards pathogenic immunosenescent T cell subsets, and for the clonal restriction of their T cell receptor (TCR). Accordingly, we find that these pathogenic shifts can be therapeutically targeted via CD20 monoclonal antibody treatment. Mechanistically, we uncover a new role for insulin receptor signaling in influencing age-related B cell pathogenicity that in turn induces T cell dysfunction and a decline in healthspan parameters. These results establish B cells as a pivotal force contributing to age-associated adaptive immune dysfunction and healthspan outcomes, and suggest new modalities to manage aging and related multi-morbidity.
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Affiliation(s)
- Saad Khan
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Cellular & Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, ON M5G 2C4, Canada
| | - Mainak Chakraborty
- Division of Cellular & Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, ON M5G 2C4, Canada
| | - Fei Wu
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Nan Chen
- Division of Cellular & Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, ON M5G 2C4, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, ON M5S 1A8, Canada
| | - Tao Wang
- Department of Physiology, University of Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
- Ted Rogers Centre for Heart Research, Toronto, ON, M5G 1X8, Canada
| | - Yi Tao Chan
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Cellular & Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, ON M5G 2C4, Canada
| | - Azin Sayad
- Princess Margaret Cancer Centre, University Health Network, ON M5G 2C1, Canada
| | - Juan Diego Sánchez Vásquez
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
| | - Max Kotlyar
- Osteoarthritis Research Program, Division of Orthopedic Surgery, Schroeder Arthritis Institute, University Health Network, and Data Science Discovery Centre for Chronic Diseases, Krembil Research Institute, Toronto, ON M5T 0S8, Canada
| | - Khiem Nguyen
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Yingxiang Huang
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Faisal J. Alibhai
- Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
| | - Minna Woo
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Cellular & Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, ON M5G 2C4, Canada
- Division of Endocrinology and Metabolism, Department of Medicine, University Health Network, University of Toronto, ON M5G 1L7, Canada
| | - Ren-Ke Li
- Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
- Division of Cardiac Surgery, University Health Network, University of Toronto, ON M5G IL7, Canada
| | - Mansoor Husain
- Department of Laboratory Medicine and Pathobiology, University of Toronto, ON M5S 1A8, Canada
- Department of Physiology, University of Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
- Ted Rogers Centre for Heart Research, Toronto, ON, M5G 1X8, Canada
| | - Igor Jurisica
- Osteoarthritis Research Program, Division of Orthopedic Surgery, Schroeder Arthritis Institute, University Health Network, and Data Science Discovery Centre for Chronic Diseases, Krembil Research Institute, Toronto, ON M5T 0S8, Canada
- Departments of Medical Biophysics and Computer Science, and Faculty of Dentistry, University of Toronto, ON M5S 2E4, Canada
- Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Adam J. Gehring
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto Center for Liver Disease & Schwartz Reisman Liver Research Centre, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Pamela S. Ohashi
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Princess Margaret Cancer Centre, University Health Network, ON M5G 2C1, Canada
| | - David Furman
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Sue Tsai
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2RS, Canada
| | - Shawn Winer
- Department of Laboratory Medicine and Pathobiology, University of Toronto, ON M5S 1A8, Canada
- Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Daniel A. Winer
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Cellular & Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON M5G 1L7, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, ON M5G 2C4, Canada
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
- Department of Laboratory Medicine and Pathobiology, University of Toronto, ON M5S 1A8, Canada
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50
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Chung MKY, Gong L, Kwong DL, Lee VH, Lee AW, Guan X, Kam N, Dai W. Functions of double-negative B cells in autoimmune diseases, infections, and cancers. EMBO Mol Med 2023; 15:e17341. [PMID: 37272217 PMCID: PMC10493577 DOI: 10.15252/emmm.202217341] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 06/06/2023] Open
Abstract
Most mature B cells can be divided into four subtypes based on the expression of the surface markers IgD and CD27: IgD+ CD27- naïve B cells, IgD+ CD27+ unswitched memory B cells, IgD- CD27+ switched memory B cells, and IgD- CD27- double-negative (DN) B cells. Despite their small population size in normal peripheral blood, DN B cells play integral roles in various diseases. For example, they generate autoimmunity in autoimmune conditions, while these cells may generate both autoimmune and antipathogenic responses in COVID-19, or act in a purely antipathogenic capacity in malaria. Recently, DN B cells have been identified in nasopharyngeal carcinoma and non-small-cell lung cancers, where they may play an immunosuppressive role. The distinct functions that DN B cells play in different diseases suggest that they are a heterogeneous B-cell population. Therefore, further study of the mechanisms underlying the involvement of DN B cells in these diseases is essential for understanding their pathogenesis and the development of therapeutic strategies. Further research is thus warranted to characterize the DN B-cell population in detail.
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Affiliation(s)
- Michael King Yung Chung
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
| | - Lanqi Gong
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Dora Lai‐Wan Kwong
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Victor Ho‐Fun Lee
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Ann Wing‐Mui Lee
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Xin‐Yuan Guan
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Ngar‐Woon Kam
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Laboratory for Synthetic Chemistry and Chemical BiologyHong Kong (SAR)China
| | - Wei Dai
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
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