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Sankararaman S, Venegas C, Seth S, Palchaudhuri S. "Feed a Cold, Starve a Fever?" A Review of Nutritional Strategies in the Setting of Bacterial Versus Viral Infections. Curr Nutr Rep 2024; 13:314-322. [PMID: 38587572 DOI: 10.1007/s13668-024-00536-w] [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] [Accepted: 03/27/2024] [Indexed: 04/09/2024]
Abstract
PURPOSE OF REVIEW Some data, mostly originally derived from animal studies, suggest that low glucose intake is protective in bacterial sepsis but detrimental in overwhelming viral infections. This has been interpreted into a broad belief that different forms of sepsis may potentially require different nutritional management strategies. There are a few mechanistic differences between the host interactions with virus and bacteria which can explain why there may be opposing responses to macronutrient and micronutrient during the infected state. Here, we aim to review relevant evidence on the mechanisms and pathophysiology of nutritional management strategies in various infectious syndromes and summarize their clinical implications. RECENT FINDINGS Newer literature - in the context of the SARS-CoV-19 pandemic - offers some insight to viral infections. There is still limited clinically applicable data during infection that clearly delineate the role of nutrition during an active viral vs bacterial infections. Based on contrasting findings in different models of viruses and bacteria, the macronutrient and micronutrient needs may depend more on specific infectious organisms that may not be generalizable as bacterial versus viral. Overall, the metabolic effects of sepsis are context dependent, and various host-specific (e.g., age, baseline nutritional status, immune status, comorbidities) and illness variables (phase, duration, and severity of illness) play a significant role in determining the outcome besides pathogen-specific (virus or bacterial or fungi and combined infections) factors. Microbe therapy (probiotics and prebiotics) seems to have therapeutic potential in both viral and bacterial infected states, and this seems like a promising area for further practical research.
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Affiliation(s)
- Senthilkumar Sankararaman
- Division of Pediatric Gastroenterology, UH Rainbow Babies & Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Carla Venegas
- Department Critical Care Medicine and Nutrition Support Team, Mayo Clinic, Jacksonville, FL, USA
| | - Sonia Seth
- Upstate Medical University, Syracuse, NY, USA
| | - Sonali Palchaudhuri
- Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA.
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Uysalol EP, Uysalol M, Serin I, Pehlivan M, Oyaci Y, Pehlivan S, Karakas Z. The effect of leptin gene polymorphisms ( LEP rs7799039 and LEPR rs1137101) on febrile neutropenia. Heliyon 2024; 10:e28788. [PMID: 38586343 PMCID: PMC10998141 DOI: 10.1016/j.heliyon.2024.e28788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/09/2024] Open
Abstract
Background and aim Leptin is mainly produced in adipose tissue and released into systemic circulation. Leptin and its receptor LEPR activate the Janus kinase/signal transducers and activators of transcription signaling cascade and increase cytokine discharge. In our study, we aimed to examine the role of leptin gene (LEP) rs7799039 and LEPR rs1137101 polymorphisms on the susceptibility for febrile neutropenia (FEN) attacks and their relationship with clinical findings during the course of FEN. Methods This study included pediatric patients with a diagnosis of malignancy who applied to the pediatric emergency department between December 2019 and June 2022 and healthy controls. The genotypes of the LEP rs7799039 and LEPR rs1137101 genes were statistically compared between patients and healthy controls. In addition, the relationship between the genotype distribution of LEP rs7799039 and LEPR rs1137101 polymorphisms and clinical features during the course of FEN was investigated. Results In the statistical analysis in terms of LEP rs7799039 and LEPR rs1137101 genotype distributions between the patient and healthy groups, there was no significant difference. Patients with the AA genotype of LEPR rs1137101 polymorphism had significantly more commonly a body mass index (BMI) value of <25, and all the patients with the AG/GG genotype had a BMI value of 25 and above. LEP rs7799039 and LEPR rs1137101 genotype distributions were not statistically significant with other clinical features. Conclusions It was revealed that leptin gene polymorphisms did not have a significant effect during the course of FEN.
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Affiliation(s)
- Ezgi Paslı Uysalol
- Basaksehir Cam and Sakura City Hospital, Department of Pediatric Hematology- Oncology, Turkey
| | - Metin Uysalol
- Istanbul University, Istanbul Faculty of Medicine, Department of Pediatrics, Division of Pediatric Emergency, Turkey
| | - Istemi Serin
- Agri Training and Research Hospital, Department of Hematology, Turkey
| | - Mustafa Pehlivan
- Basaksehir Cam and Sakura City Hospital, Department of Hematology, Turkey
| | - Yasemin Oyaci
- Istanbul University, Istanbul Faculty of Medicine, Department of Medical Biology and Genetics, Turkey
| | - Sacide Pehlivan
- Istanbul University, Istanbul Faculty of Medicine, Department of Medical Biology and Genetics, Turkey
| | - Zeynep Karakas
- Istanbul University, Istanbul Faculty of Medicine, Department of Pediatric Hematology- Oncology, Turkey
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Zhang Y, He TC, Zhang H. The impact of metabolic disorders on management of periodontal health in children. PEDIATRIC DISCOVERY 2024; 2:e38. [PMID: 38784180 PMCID: PMC11115384 DOI: 10.1002/pdi3.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 10/10/2023] [Indexed: 05/25/2024]
Abstract
Periodontitis is a chronic inflammatory disease caused by plaque biofilm which shares risk factors with systemic chronic diseases such as diabetes, cardiovascular disease, and osteoporosis. Many studies have found increased prevalence and rate of progression of periodontal disease in children with common metabolic disorders. Although the causal relationship and specific mechanism between them has not been determined yet. The aim of this paper is to progress on the impact of metabolic disorders on periodontal health in children and the underlying mechanisms, which provides new evidences for the prevention and intervention of metabolic disorders and periodontitis in children.
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Affiliation(s)
- Yunyan Zhang
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
- Department of Pediatric Dentistry, The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, USA
| | - Hongmei Zhang
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
- Department of Pediatric Dentistry, The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
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Pan H, Liu B, Luo X, Shen X, Sun J, Zhang A. Non-alcoholic fatty liver disease risk prediction model and health management strategies for older Chinese adults: a cross-sectional study. Lipids Health Dis 2023; 22:205. [PMID: 38007441 PMCID: PMC10675849 DOI: 10.1186/s12944-023-01966-1] [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: 07/10/2023] [Accepted: 11/08/2023] [Indexed: 11/27/2023] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is a common chronic liver condition that affects a quarter of the global adult population. To date, only a few NAFLD risk prediction models have been developed for Chinese older adults aged ≥ 60 years. This study presented the development of a risk prediction model for NAFLD in Chinese individuals aged ≥ 60 years and proposed personalised health interventions based on key risk factors to reduce NAFLD incidence among the population. METHODS A cross-sectional survey was carried out among 9,041 community residents in Shanghai. Three NAFLD risk prediction models (I, II, and III) were constructed using multivariate logistic regression analysis based on the least absolute shrinkage and selection operator regression analysis, and random forest model to select individual characteristics, respectively. To determine the optimal model, the three models' discrimination, calibration, clinical application, and prediction capability were evaluated using the receiver operating characteristic (ROC) curve, calibration plot, decision curve analysis, and net reclassification index (NRI), respectively. To evaluate the optimal model's effectiveness, the previously published NAFLD risk prediction models (Hepatic steatosis index [HSI] and ZJU index) were evaluated using the following five indicators: accuracy, precision, recall, F1-score, and balanced accuracy. A dynamic nomogram was constructed for the optimal model, and a Bayesian network model for predicting NAFLD risk in older adults was visually displayed using Netica software. RESULTS The area under the ROC curve of Models I, II, and III in the training dataset was 0.810, 0.826, and 0.825, respectively, and that of the testing data was 0.777, 0.797, and 0.790, respectively. No significant difference was found in the accuracy or NRI between the models; therefore, Model III with the fewest variables was determined as the optimal model. Compared with the HSI and ZJU index, Model III had the highest accuracy (0.716), precision (0.808), recall (0.605), F1 score (0.692), and balanced accuracy (0.723). The risk threshold for Model III was 20%-80%. Model III included body mass index, alanine aminotransferase level, triglyceride level, and lymphocyte count. CONCLUSIONS A dynamic nomogram and Bayesian network model were developed to identify NAFLD risk in older Chinese adults, providing personalized health management strategies and reducing NAFLD incidence.
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Affiliation(s)
- Hong Pan
- Department of Health Management, School of Public Health, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Baocheng Liu
- Shanghai Collaborative Innovation Centre of Health Service in Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xin Luo
- Department of Health Management, School of Public Health, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xinxin Shen
- School of Public Health, Shandong First Medical University, Shandong, China
| | - Jijia Sun
- Department of Mathematics and Physics, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - An Zhang
- Department of Health Management, School of Public Health, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Neto A, Fernandes A, Barateiro A. The complex relationship between obesity and neurodegenerative diseases: an updated review. Front Cell Neurosci 2023; 17:1294420. [PMID: 38026693 PMCID: PMC10665538 DOI: 10.3389/fncel.2023.1294420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Obesity is a global epidemic, affecting roughly 30% of the world's population and predicted to rise. This disease results from genetic, behavioral, societal, and environmental factors, leading to excessive fat accumulation, due to insufficient energy expenditure. The adipose tissue, once seen as a simple storage depot, is now recognized as a complex organ with various functions, including hormone regulation and modulation of metabolism, inflammation, and homeostasis. Obesity is associated with a low-grade inflammatory state and has been linked to neurodegenerative diseases like multiple sclerosis (MS), Alzheimer's (AD), and Parkinson's (PD). Mechanistically, reduced adipose expandability leads to hypertrophic adipocytes, triggering inflammation, insulin and leptin resistance, blood-brain barrier disruption, altered brain metabolism, neuronal inflammation, brain atrophy, and cognitive decline. Obesity impacts neurodegenerative disorders through shared underlying mechanisms, underscoring its potential as a modifiable risk factor for these diseases. Nevertheless, further research is needed to fully grasp the intricate connections between obesity and neurodegeneration. Collaborative efforts in this field hold promise for innovative strategies to address this complex relationship and develop effective prevention and treatment methods, which also includes specific diets and physical activities, ultimately improving quality of life and health.
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Affiliation(s)
- Alexandre Neto
- Central Nervous System, Blood and Peripheral Inflammation, Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
| | - Adelaide Fernandes
- Central Nervous System, Blood and Peripheral Inflammation, Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
| | - Andreia Barateiro
- Central Nervous System, Blood and Peripheral Inflammation, Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
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Joseph G, Cohen C, Rubin C, Murad H, Indenbaum V, Asraf K, Weiss-Ottolenghi Y, Segal-Lieberman G, Kreiss Y, Lustig Y, Regev-Yochay G. Humoral Immunity of Unvaccinated COVID-19 Recovered vs. Naïve BNT162b2 Vaccinated Individuals: A Prospective Longitudinal Study. Microorganisms 2023; 11:1628. [PMID: 37512801 PMCID: PMC10384358 DOI: 10.3390/microorganisms11071628] [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: 05/08/2023] [Revised: 06/14/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
To study the differences in the immune response to SARS-CoV-2 infection compared to the response to vaccination, we characterized the humoral immune kinetics of these situations. In this prospective longitudinal study, we followed unvaccinated COVID-19-recovered individuals (n = 130) and naïve, two-dose BNT162b2-vaccinated individuals (n = 372) who were age- and BMI-matched for six months during the first pandemic year. Anti-RBD-IgG, neutralizing antibodies (NAbs), and avidity were assessed monthly. For recovered patients, data on symptoms and the severity of the disease were collected. Anti-RBD-IgG and NAbs titers at peak were higher after vaccination vs. after infection, but the decline was steeper (peak log IgG: 3.08 vs. 1.81, peak log NAbs: 5.93 vs. 5.04, slopes: -0.54 vs. -0.26). Peak anti-RBD-IgG and NAbs were higher in recovered individuals with BMI > 30 and in older individuals compared to individuals with BMI < 30, younger population. Of the recovered, 42 (36%) experienced long-COVID symptoms. Avidity was initially higher in vaccinated individuals compared with recovered individuals, though with time, it increased in recovered individuals but not among vaccinated individuals. Here, we show that while the initial antibody titers, neutralization, and avidity are lower in SARS-CoV-2-recovered individuals, they persist for a longer duration. These results suggest differential protection against COVID-19 in recovered-unvaccinated vs. naïve-vaccinated individuals.
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Affiliation(s)
- Gili Joseph
- The Sheba Pandemic Preparedness Research Institute (SPRI), and Infection Prevention & Control Unit, Sheba Medical Center, Tel Hashomer, Ramat Gan 52621, Israel
| | - Carmit Cohen
- The Sheba Pandemic Preparedness Research Institute (SPRI), and Infection Prevention & Control Unit, Sheba Medical Center, Tel Hashomer, Ramat Gan 52621, Israel
| | - Carmit Rubin
- Gertner Institute, Sheba Medical Center, Tel Hashomer, Ramat Gan 52621, Israel
| | - Havi Murad
- Gertner Institute, Sheba Medical Center, Tel Hashomer, Ramat Gan 52621, Israel
| | - Victoria Indenbaum
- Central Virology Laboratory, Public Health Services, Ministry of Health, Tel-Hashomer, Ramat Gan 52621, Israel
| | - Keren Asraf
- The Dworman Automated-Mega Laboratory, Sheba Medical Center, Tel-Hashomer, Ramat Gan 52621, Israel
| | - Yael Weiss-Ottolenghi
- The Sheba Pandemic Preparedness Research Institute (SPRI), and Infection Prevention & Control Unit, Sheba Medical Center, Tel Hashomer, Ramat Gan 52621, Israel
| | - Gabriella Segal-Lieberman
- Division of Endocrinology, Diabetes and Metabolism, Sheba Medical Center, Tel Hashomer, Ramat Gan 52621, Israel
- Sackler School of Medicine, Tel-Aviv University, Tel Aviv 69978, Israel
| | - Yitshak Kreiss
- General Management, Sheba Medical Center, Tel Hashomer, Ramat Gan 52621, Israel
| | - Yaniv Lustig
- Central Virology Laboratory, Public Health Services, Ministry of Health, Tel-Hashomer, Ramat Gan 52621, Israel
- Sackler School of Medicine, Tel-Aviv University, Tel Aviv 69978, Israel
| | - Gili Regev-Yochay
- The Sheba Pandemic Preparedness Research Institute (SPRI), and Infection Prevention & Control Unit, Sheba Medical Center, Tel Hashomer, Ramat Gan 52621, Israel
- Sackler School of Medicine, Tel-Aviv University, Tel Aviv 69978, Israel
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Lempesis IG, Georgakopoulou VE. Implications of obesity and adiposopathy on respiratory infections; focus on emerging challenges. World J Clin Cases 2023; 11:2925-2933. [PMID: 37215426 PMCID: PMC10198078 DOI: 10.12998/wjcc.v11.i13.2925] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/17/2023] [Accepted: 03/30/2023] [Indexed: 04/25/2023] Open
Abstract
Obesity is characterized by excessive adipose tissue accumulation, which impacts physiological, metabolic, and immune functions. Several respiratory infections, including bacterial pneumonia, influenza, and coronavirus disease 2019, appear to be linked to unfavorable results in individuals with obesity. These may be attributed to the direct mechanical/physiological effects of excess body fat on the lungs’ function. Notably, adipose tissue dysfunction is associated with a low-grade chronic inflammatory status and hyperleptinemia, among other characteristics. These have all been linked to immune system dysfunction and weakened immune responses to these infections. A better understanding and clinical awareness of these risk factors are necessary for better disease outcomes.
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Affiliation(s)
- Ioannis G Lempesis
- Department of Infectious Diseases-COVID-19 Unit, Laiko General Hospital, Athens 11527, Greece
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Rossi VA, Gruebler M, Monzo L, Galluzzo A, Beltrami M. The Different Pathways of Epicardial Adipose Tissue across the Heart Failure Phenotypes: From Pathophysiology to Therapeutic Target. Int J Mol Sci 2023; 24:6838. [PMID: 37047810 PMCID: PMC10095298 DOI: 10.3390/ijms24076838] [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: 03/09/2023] [Revised: 03/28/2023] [Accepted: 04/04/2023] [Indexed: 04/14/2023] Open
Abstract
Epicardial adipose tissue (EAT) is an endocrine and paracrine organ constituted by a layer of adipose tissue directly located between the myocardium and visceral pericardium. Under physiological conditions, EAT exerts protective effects of brown-like fat characteristics, metabolizing excess fatty acids, and secreting anti-inflammatory and anti-fibrotic cytokines. In certain pathological conditions, EAT acquires a proatherogenic transcriptional profile resulting in increased synthesis of biologically active adipocytokines with proinflammatory properties, promoting oxidative stress, and finally causing endothelial damage. The role of EAT in heart failure (HF) has been mainly limited to HF with preserved ejection fraction (HFpEF) and related to the HFpEF obese phenotype. In HFpEF, EAT seems to acquire a proinflammatory profile and higher EAT values have been related to worse outcomes. Less data are available about the role of EAT in HF with reduced ejection fraction (HFrEF). Conversely, in HFrEF, EAT seems to play a nutritive role and lower values may correspond to the expression of a catabolic, adverse phenotype. As of now, there is evidence that the beneficial systemic cardiovascular effects of sodium-glucose cotransporter-2 receptors-inhibitors (SGLT2-i) might be partially mediated by inducing favorable modifications on EAT. As such, EAT may represent a promising target organ for the development of new drugs to improve cardiovascular prognosis. Thus, an approach based on detailed phenotyping of cardiac structural alterations and distinctive biomolecular pathways may change the current scenario, leading towards a precision medicine model with specific therapeutic targets considering different individual profiles. The aim of this review is to summarize the current knowledge about the biomolecular pathway of EAT in HF across the whole spectrum of ejection fraction, and to describe the potential of EAT as a therapeutic target in HF.
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Affiliation(s)
- Valentina A. Rossi
- University Heart Center, Department of Cardiology, University Hospital of Zurich, 8091 Zurich, Switzerland
| | - Martin Gruebler
- Regional Hospital Neustadt, 2700 Wiener Neustadt, Austria
- Faculty of Medicine, Medical University of Graz, 8036 Graz, Austria
- Faculty of Medicine, Sigmund Freud University Vienna, 1020 Vienna, Austria
| | - Luca Monzo
- Centre d’Investigations Cliniques Plurithématique 1433 and Inserm U1116, Université de Lorraine, CHRU Nancy, FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), 54035 Nancy, France
| | | | - Matteo Beltrami
- Azienda USL Toscana Centro, Cardiology Unit, San Giovanni di Dio Hospital, 50143 Florence, Italy;
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Guo D, Dai J, Ju R, Zhou Q, Wang N, Wu C, Tao H, Jing H, Zhu C, Mao J, Xu J. The relationship between triglyceride, cholesterol and lipoprotein levels, and immune responses to hepatitis B vaccine. Front Med (Lausanne) 2023; 10:1131373. [PMID: 37064020 PMCID: PMC10098103 DOI: 10.3389/fmed.2023.1131373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 03/13/2023] [Indexed: 03/31/2023] Open
Abstract
Cholesterol homeostasis disorder and hypertriglyceridemia, as common metabolic conditions, have rarely been reported to affect the immune responses to the hepatitis B vaccine. Our study found that higher high-density lipoprotein (HDL) level showed a significant relationship with positive anti-HBs results (cOR = 1.479, 95% CI: 1.150, 1.901, p = 0.002; aOR = 1.304, 95% CI: 1.006, 1.691, p = 0.045), especially in individuals aged 18- to 40-year-old, female, smoking more than 100 cigarettes in life, and drinking more than 12 times every year. Lower low-density lipoprotein (LDL) level was associated with a negative anti-HBs result among participants aged 18- to 40-year-old, and participants who were obese. Higher level of HDL and lower level of LDL may be protective factors of better immune effect of hepatitis B vaccine. More research should be conducted to investigate the influence of the cholesterol level on the immune responses to the hepatitis B vaccine, and more in-depth research should be performed to uncover the mechanism.
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Affiliation(s)
- Dan Guo
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Dan Guo,
| | - Jiazhen Dai
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Rong Ju
- Department of Gynaecology and Obstetrics, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Qifan Zhou
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Nenghuan Wang
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Chunhua Wu
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Hui Tao
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Hui Jing
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Chen Zhu
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Jinxian Mao
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Jiayan Xu
- Department of Preventive Health, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
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Costa KB, Garcia BCC, Costa MLB, Pena YG, Figueiredo EAB, Ottoni MHF, Santos JD, de Oliveira Ottone V, de Oliveira DB, Rocha-Vieira E. Association between Anti-DENV IgM Serum Prevalence and CD11b Expression by Classical Monocytes in Obesity. Viruses 2023; 15:234. [PMID: 36680274 PMCID: PMC9865527 DOI: 10.3390/v15010234] [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: 12/09/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Dengue and obesity are currently highly prevalent conditions worldwide and the association between these two conditions may result in greater risk for DENV infection and disease severity. In this study the association between obesity and recent, inapparent dengue was investigated. Serum DENV IgM and NS1 were evaluated in 49 adult volunteers (15 lean and 34 individuals with obesity, according to body mass index), between September 2017 and June 2018. Adiposity, endocrine, metabolic, and immune data of the participants were also obtained. None of the study participants tested positive for the DENV NS1 antigen. DENV IgM was detected in 33.3% of the lean individuals, and in 44.1% of those with obesity; the presence of DENV IgM was not associated with body mass index (OR = 1.32, 95% CI = 0.59-2.98, p = 0.48). However, body fat index was higher in obese individuals who had recent inapparent dengue (14.7 ± 3.1 versus 12.7 ± 2.1 kg/m2, p = 0.04), as was the expression of CD11b by classical (CD14++CD16-) monocytes (1103.0 ± 311.3 versus 720.3 ± 281.1 mean fluoresce intensity). Our findings suggest an association between adiposity and recent inapparent dengue and the involvement of classical monocytes in this association.
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Affiliation(s)
- Karine Beatriz Costa
- Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
- Departamento de Medicina, Universidade Federal de Juiz de Fora, Governador Valadares 35010-180, MG, Brazil
- Laboratory of Exercise Biology and Immunometabolism, Centro Integrado de Pós-Graduação e Pesquisa em Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
| | - Bruna Caroline Chaves Garcia
- Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
- Laboratory of Exercise Biology and Immunometabolism, Centro Integrado de Pós-Graduação e Pesquisa em Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
| | - Marina Luiza Baêta Costa
- Laboratory of Exercise Biology and Immunometabolism, Centro Integrado de Pós-Graduação e Pesquisa em Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
| | - Yara Gomes Pena
- Laboratory of Exercise Biology and Immunometabolism, Centro Integrado de Pós-Graduação e Pesquisa em Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
| | - Eduardo Augusto Barbosa Figueiredo
- Laboratory of Exercise Biology and Immunometabolism, Centro Integrado de Pós-Graduação e Pesquisa em Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
| | - Marcelo Henrique Fernandes Ottoni
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
| | - Juliane Duarte Santos
- Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
| | - Vinícius de Oliveira Ottone
- Laboratory of Exercise Biology and Immunometabolism, Centro Integrado de Pós-Graduação e Pesquisa em Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
| | - Danilo Bretas de Oliveira
- Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
| | - Etel Rocha-Vieira
- Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
- Laboratory of Exercise Biology and Immunometabolism, Centro Integrado de Pós-Graduação e Pesquisa em Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal dos Vales do Jequitinonha e Mucuri, Diamantina 39100-000, MG, Brazil
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11
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Oleinika K, Slisere B, Catalán D, Rosser EC. B cell contribution to immunometabolic dysfunction and impaired immune responses in obesity. Clin Exp Immunol 2022; 210:263-272. [PMID: 35960996 PMCID: PMC9384752 DOI: 10.1093/cei/uxac079] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/15/2022] [Accepted: 08/09/2022] [Indexed: 11/14/2022] Open
Abstract
Obesity increases the risk of type 2 diabetes mellitus, cardiovascular disease, fatty liver disease, and cancer. It is also linked with more severe complications from infections, including COVID-19, and poor vaccine responses. Chronic, low-grade inflammation and associated immune perturbations play an important role in determining morbidity in people living with obesity. The contribution of B cells to immune dysregulation and meta-inflammation associated with obesity has been documented by studies over the past decade. With a focus on human studies, here we consolidate the observations demonstrating that there is altered B cell subset composition, differentiation, and function both systemically and in the adipose tissue of individuals living with obesity. Finally, we discuss the potential factors that drive B cell dysfunction in obesity and propose a model by which altered B cell subset composition in obesity underlies dysfunctional B cell responses to novel pathogens.
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Affiliation(s)
- Kristine Oleinika
- Correspondence: Kristine Oleinika, Department of Internal Diseases, Riga Stradins University, Riga, Latvia.
| | - Baiba Slisere
- Department of Doctoral Studies, Riga Stradins University, Riga, Latvia
- Joint Laboratory, Pauls Stradins Clinical University Hospital, Riga, Latvia
| | - Diego Catalán
- Programa Disciplinario de Inmunología, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Elizabeth C Rosser
- Centre for Adolescent Rheumatology Versus Arthritis at UCL, UCLH and GOSH and Department of Rheumatology, Division of Medicine, University College London, London, UK
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12
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Wang Y, Hu C. Leptin and Asthma: What Are the Interactive Correlations? Biomolecules 2022; 12:biom12121780. [PMID: 36551211 PMCID: PMC9775505 DOI: 10.3390/biom12121780] [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: 10/25/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022] Open
Abstract
Leptin is an adipokine directly correlated with the proinflammatory obese-associated phenotype. Leptin has been demonstrated to inhibit adipogenesis, promote fat demarcation, promote a chronic inflammatory state, increase insulin sensitivity, and promote angiogenesis. Leptin, a regulator of the immune response, is implicated in the pathology of asthma. Studies involved in the key cell reaction and animal models of asthma have provided vital insights into the proinflammatory role of leptin in asthma. Many studies described the immune cell and related cellular pathways activated by leptin, which are beneficial in asthma development and increasing exacerbations. Subsequent studies relating to animal models support the role of leptin in increasing inflammatory cell infiltration, airway hyperresponsiveness, and inflammatory responses. However, the conclusive effects of leptin in asthma are not well elaborated. In the present study, we explored the general functions and the clinical cohort study supporting the association between leptin and asthma. The main objective of our review is to address the knowns and unknowns of leptin on asthma. In this perspective, the arguments about the different faces of leptin in asthma are provided to picture the potential directions, thus yielding a better understanding of asthma development.
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Affiliation(s)
- Yang Wang
- Department of Respiratory Medicine (Department of Respiratory and Critical Care Medicine), Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Chengping Hu
- Department of Respiratory Medicine (Department of Respiratory and Critical Care Medicine), Xiangya Hospital, Central South University, Changsha 410008, China
- Correspondence:
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13
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Correale J, Marrodan M. Multiple sclerosis and obesity: The role of adipokines. Front Immunol 2022; 13:1038393. [PMID: 36457996 PMCID: PMC9705772 DOI: 10.3389/fimmu.2022.1038393] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/28/2022] [Indexed: 11/24/2023] Open
Abstract
Multiple Sclerosis (MS), a chronic inflammatory disease of the central nervous system that leads to demyelination and neurodegeneration has been associated with various environmental and lifestyle factors. Population-based studies have provided evidence showing the prevalence of MS is increasing worldwide. Because a similar trend has been observed for obesity and metabolic syndrome, interest has grown in possible underlying biological mechanisms shared by both conditions. Adipokines, a family of soluble factors produced by adipose tissue that participate in a wide range of biological functions, contribute to a low state of chronic inflammation observed in obesity, and influence immune function, metabolism, and nutritional state. In this review, we aim to describe epidemiological and biological factors common to MS and obesity, as well as provide an update on current knowledge of how different pro- and anti-inflammatory adipokines participate as immune response mediators in MS, as well as in the animal model for MS, namely, experimental autoimmune encephalomyelitis (EAE). Multiple Sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) leading to demyelination, and neurodegeneration. Although its pathogenesis is not yet fully understood, there is considerable evidence to suggest MS arises from complex interactions between individual genetic susceptibility and external environmental factors. In recent decades, population-based studies have provided evidence indicating the prevalence of MS is increasing worldwide, in parallel with the rise in obesity and metabolic syndrome. This synchronous increment in the incidence of both MS and obesity has led to a search for potential biological mechanisms linking both conditions. Notably, a large number of studies have established significant correlation between obesity and higher prevalence, or worse prognosis, of several immune-mediated conditions. Fat tissue has been found to produce a variety of soluble factors named adipokines. These mediators, secreted by both adipocytes as well as diverse immune cells, participate in a wide range of biological functions, further strengthening the concept of a link between immune function, metabolism, and nutritional state. Because obesity causes overproduction of pro-inflammatory adipokines (namely leptin, resistin and visfatin) and reduction of anti-inflammatory adipokines (adiponectin and apelin), adipose tissue dysregulation would appear to contribute to a state of chronic, low-grade inflammation favoring the development of disease. In this review, we present a summary of current knowledge related to the pathological effects of different adipokines, prevalent in obese MS patients.
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Affiliation(s)
- Jorge Correale
- Departamento de Neurología, Fleni, Buenos Aires, Argentina
- Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Universidad de Buenos Aires/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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14
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Regulation of feeding and therapeutic application of bioactive peptides. Pharmacol Ther 2022; 239:108187. [DOI: 10.1016/j.pharmthera.2022.108187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/25/2022] [Accepted: 04/07/2022] [Indexed: 10/18/2022]
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15
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Tsilingiris D, Nasiri-Ansari N, Spyrou N, Magkos F, Dalamaga M. Management of Hematologic Malignancies in the Era of COVID-19 Pandemic: Pathogenetic Mechanisms, Impact of Obesity, Perspectives, and Challenges. Cancers (Basel) 2022; 14:2494. [PMID: 35626099 PMCID: PMC9139192 DOI: 10.3390/cancers14102494] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/14/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023] Open
Abstract
The COVID-19 pandemic brought about an unprecedented societal and healthcare system crisis, considerably affecting healthcare workers and patients, particularly those with chronic diseases. Patients with hematologic malignancies faced a variety of challenges, pertinent to the nature of an underlying hematologic disorder itself as well as its therapy as a risk factor for severe SARS-CoV-2 infection, suboptimal vaccine efficacy and the need for uninterrupted medical observation and continued therapy. Obesity constitutes another factor which was acknowledged since the early days of the pandemic that predisposed people to severe COVID-19, and shares a likely causal link with the pathogenesis of a broad spectrum of hematologic cancers. We review here the epidemiologic and pathogenetic features that obesity and hematologic malignancies share, as well as potential mutual pathophysiological links predisposing people to a more severe SARS-CoV-2 course. Additionally, we attempt to present the existing evidence on the multi-faceted crucial challenges that had to be overcome in this diverse patient group and discuss further unresolved questions and future challenges for the management of hematologic malignancies in the era of COVID-19.
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Affiliation(s)
- Dimitrios Tsilingiris
- First Department of Propaedeutic Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Laiko General Hospital, 17 St Thomas Street, 11527 Athens, Greece
| | - Narjes Nasiri-Ansari
- Department of Biological Chemistry, School of Medicine, National and Kapodistrian University of Athens, 75 Mikras Asias, 11527 Athens, Greece
| | - Nikolaos Spyrou
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Faidon Magkos
- Department of Nutrition, Exercise, and Sports, University of Copenhagen, DK-2200 Frederiksberg, Denmark
| | - Maria Dalamaga
- Department of Biological Chemistry, School of Medicine, National and Kapodistrian University of Athens, 75 Mikras Asias, 11527 Athens, Greece
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16
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Misch M, Puthanveetil P. The Head-to-Toe Hormone: Leptin as an Extensive Modulator of Physiologic Systems. Int J Mol Sci 2022; 23:ijms23105439. [PMID: 35628271 PMCID: PMC9141226 DOI: 10.3390/ijms23105439] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/30/2022] [Accepted: 05/10/2022] [Indexed: 12/12/2022] Open
Abstract
Leptin is a well-known hunger-sensing peptide hormone. The role of leptin in weight gain and metabolic homeostasis has been explored for the past two decades. In this review, we have tried to shed light upon the impact of leptin signaling on health and diseases. At low or moderate levels, this peptide hormone supports physiological roles, but at chronically higher doses exhibits detrimental effects on various systems. The untoward effects we observe with chronically higher levels of leptin are due to their receptor-mediated effect or due to leptin resistance and are not well studied. This review will help us in understanding the non-anorexic roles of leptin, including their contribution to the metabolism of various systems and inflammation. We will be able to get an alternative perspective regarding the physiological and pathological roles of this mysterious peptide hormone.
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Affiliation(s)
- Monica Misch
- Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, IL 60515, USA;
| | - Prasanth Puthanveetil
- Department of Pharmacology, College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA
- Correspondence: ; Tel.: +1-630-960-3935
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17
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Wang W, Zhang BT, Jiang QL, Zhao HQ, Xu Q, Zeng Y, Xu JY, Jiang J. Leptin receptor antagonist attenuates experimental autoimmune thyroiditis in mice by regulating Treg/Th17 cell differentiation. Front Endocrinol (Lausanne) 2022; 13:1042511. [PMID: 36339447 PMCID: PMC9630560 DOI: 10.3389/fendo.2022.1042511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/05/2022] [Indexed: 11/13/2022] Open
Abstract
Leptin has been found to be involved in the development and progression of many autoimmune diseases. As an organ-specific autoimmune disease, the pathogenesis of Hashimoto's thyroiditis has not been fully elucidated. It has been reported that serum leptin level is increased in Hashimoto's thyroiditis, but other studies have not shown any difference. We replicated a mouse model of experimental autoimmune thyroiditis (EAT) with a high-iodine diet and found that injection of the leptin receptor antagonist Allo-aca reduced thyroid follicle destruction and inflammatory cell infiltration in EAT mice, and thyroxine and thyroid autoimmune antibody levels. Further investigation revealed that Allo-aca promotes the differentiation of Treg cells and inhibits the differentiation of Th17 cells. We believe that Allo-aca can alter the differentiation of Treg/Th17 cells by inhibiting the leptin signaling pathway, thereby alleviating thyroid injury in EAT mice. Interfering with the leptin signaling pathway may be a novel new approach to treat treating and ameliorating Hashimoto's thyroiditis.
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Affiliation(s)
- Wei Wang
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Bo-Tao Zhang
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Qi-Lan Jiang
- Department of Clinical Nutrition, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Han-Qing Zhao
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Qin Xu
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yang Zeng
- Department of Orthodontics, the Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China
| | - Jia-Ying Xu
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, China
- *Correspondence: Jun Jiang, ; Jia-Ying Xu,
| | - Jun Jiang
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, China
- *Correspondence: Jun Jiang, ; Jia-Ying Xu,
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18
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Chavez J, Hai R. Effects of Cigarette Smoking on Influenza Virus/Host Interplay. Pathogens 2021; 10:pathogens10121636. [PMID: 34959590 PMCID: PMC8704216 DOI: 10.3390/pathogens10121636] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/15/2022] Open
Abstract
Cigarette smoking has been shown to increase the risk of respiratory infection, resulting in the exacerbation of infectious disease outcomes. Influenza viruses are a major respiratory viral pathogen, which are responsible for yearly epidemics that result in between 20,000 and 50,000 deaths in the US alone. However, there are limited general summaries on the impact of cigarette smoking on influenza pathogenic outcomes. Here, we will provide a systematic summarization of the current understanding of the interplay of smoking and influenza viral infection with a focus on examining how cigarette smoking affects innate and adaptive immune responses, inflammation levels, tissues that contribute to systemic chronic inflammation, and how this affects influenza A virus (IAV) disease outcomes. This summarization will: (1) help to clarify the conflict in the reports on viral pathogenicity; (2) fill knowledge gaps regarding critical anti-viral defenses such as antibody responses to IAV; and (3) provide an updated understanding of the underlying mechanism behind how cigarette smoking influences IAV pathogenicity.
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19
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Wang PH, Wu MF, Hsu CY, Pan SW, Shu CC, Cheng SL. The Trend of TIM3 Expression on T Cells in Patients With Nontuberculous Mycobacterial Lung Disease: From Immune Cell Dysfunction to Clinical Severity. Front Immunol 2021; 12:738056. [PMID: 34867961 PMCID: PMC8636047 DOI: 10.3389/fimmu.2021.738056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/19/2021] [Indexed: 12/26/2022] Open
Abstract
Background The incidence of nontuberculous mycobacterial lung disease (NTM-LD) is increasing worldwide. Immune exhaustion has been reported in NTM-LD, but T-cell immunoglobulin and mucin domain-containing protein 3 (TIM3), a co-inhibitory receptor on T cells, has been scarcely studied. Methods Patients with NTM-LD and healthy controls were prospectively recruited from July 2014 to August 2019 at three tertiary referral centers in Taiwan. We examined TIM3 expression on the T cells from the participants using flow cytometry. TIM3 expression was analyzed for different disease statuses and after treatment. The apoptosis and cytokine profiles were analyzed according to the TIM3 expression. Results Among enrolled subjects (47 patients and 46 controls), TIM3 on CD4+ cells (6.44% vs. 4.12%, p = 0.028) and CD8+ cells (18.47% vs. 9.13%, p = 0.003) were higher in NTM-LD patients than in the controls. The TIM3 level on CD4+ and CD8+ T cells was positively associated with T-cell apoptosis in the NTM-LD patients. In stimulating peripheral blood mononuclear cells using PMA plus ionomycin, a high TIM3 level on T cells correlated with low interleukin-2 and tumor necrosis factor-alpha (TNF-α) on CD4+ cells and interferon-gamma and TNF-α on CD8+ T cells. For clinical manifestation, low body mass index (BMI), positive sputum acid-fast smear, and high radiographic score correlated with high TIM3 expression on T cells. After NTM treatment, TIM3+ decreased significantly on CD4+ and CD8+ T cells. Conclusions In patients with NTM-LD, TIM3+ expression increased over CD4+ and CD8+ T cells and correlated with cell apoptosis and specific cytokine attenuation. Clinically, TIM3+ T cells increased in patients with low BMI, high disease extent, and high bacilli burden but decreased after treatment.
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Affiliation(s)
- Ping-Huai Wang
- Division of Pulmonology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Ming-Fang Wu
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Institute of Statistical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chi-Yu Hsu
- College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Sheng-Wei Pan
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chin-Chung Shu
- College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shih-Lung Cheng
- Division of Pulmonology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City, Taiwan
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20
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Shinjyo N, Kita K. Infection and Immunometabolism in the Central Nervous System: A Possible Mechanistic Link Between Metabolic Imbalance and Dementia. Front Cell Neurosci 2021; 15:765217. [PMID: 34795562 PMCID: PMC8592913 DOI: 10.3389/fncel.2021.765217] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022] Open
Abstract
Metabolic syndromes are frequently associated with dementia, suggesting that the dysregulation of energy metabolism can increase the risk of neurodegeneration and cognitive impairment. In addition, growing evidence suggests the link between infections and brain disorders, including Alzheimer's disease. The immune system and energy metabolism are in an intricate relationship. Infection triggers immune responses, which are accompanied by imbalance in cellular and organismal energy metabolism, while metabolic disorders can lead to immune dysregulation and higher infection susceptibility. In the brain, the activities of brain-resident immune cells, including microglia, are associated with their metabolic signatures, which may be affected by central nervous system (CNS) infection. Conversely, metabolic dysregulation can compromise innate immunity in the brain, leading to enhanced CNS infection susceptibility. Thus, infection and metabolic imbalance can be intertwined to each other in the etiology of brain disorders, including dementia. Insulin and leptin play pivotal roles in the regulation of immunometabolism in the CNS and periphery, and dysfunction of these signaling pathways are associated with cognitive impairment. Meanwhile, infectious complications are often comorbid with diabetes and obesity, which are characterized by insulin resistance and leptin signaling deficiency. Examples include human immunodeficiency virus (HIV) infection and periodontal disease caused by an oral pathogen Porphyromonas gingivalis. This review explores potential interactions between infectious agents and insulin and leptin signaling pathways, and discuss possible mechanisms underlying the relationship between infection, metabolic dysregulation, and brain disorders, particularly focusing on the roles of insulin and leptin.
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Affiliation(s)
- Noriko Shinjyo
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan.,Laboratory of Immune Homeostasis, WPI Immunology Frontier Research Center, Osaka University, Suita, Japan
| | - Kiyoshi Kita
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan.,Department of Host-Defense Biochemistry, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
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21
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Hulme KD, Noye EC, Short KR, Labzin LI. Dysregulated Inflammation During Obesity: Driving Disease Severity in Influenza Virus and SARS-CoV-2 Infections. Front Immunol 2021; 12:770066. [PMID: 34777390 PMCID: PMC8581451 DOI: 10.3389/fimmu.2021.770066] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 09/30/2021] [Indexed: 12/15/2022] Open
Abstract
Acute inflammation is a critical host defense response during viral infection. When dysregulated, inflammation drives immunopathology and tissue damage. Excessive, damaging inflammation is a hallmark of both pandemic influenza A virus (IAV) infections and Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2) infections. Chronic, low-grade inflammation is also a feature of obesity. In recent years, obesity has been recognized as a growing pandemic with significant mortality and associated costs. Obesity is also an independent risk factor for increased disease severity and death during both IAV and SARS-CoV-2 infection. This review focuses on the effect of obesity on the inflammatory response in the context of viral respiratory infections and how this leads to increased viral pathology. Here, we will review the fundamentals of inflammation, how it is initiated in IAV and SARS-CoV-2 infection and its link to disease severity. We will examine how obesity drives chronic inflammation and trained immunity and how these impact the immune response to IAV and SARS-CoV-2. Finally, we review both medical and non-medical interventions for obesity, how they impact on the inflammatory response and how they could be used to prevent disease severity in obese patients. As projections of global obesity numbers show no sign of slowing down, future pandemic preparedness will require us to consider the metabolic health of the population. Furthermore, if weight-loss alone is insufficient to reduce the risk of increased respiratory virus-related mortality, closer attention must be paid to a patient’s history of health, and new therapeutic options identified.
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Affiliation(s)
- Katina D Hulme
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia
| | - Ellesandra C Noye
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia
| | - Kirsty R Short
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia.,Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia
| | - Larisa I Labzin
- Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia.,Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
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22
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Li M, Wei H, Zhong S, Cheng Y, Wen S, Wang D, Shu Y. Association of Single Nucleotide Polymorphisms in LEP, LEPR, and PPARG With Humoral Immune Response to Influenza Vaccine. Front Genet 2021; 12:725538. [PMID: 34745208 PMCID: PMC8569447 DOI: 10.3389/fgene.2021.725538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/27/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Although previous studies have proposed leptin plays an important role in energy metabolism as well as in immune response, the effects of leptin-related genes on influenza vaccine-induced immune response remain unexplored. In this study, we aimed to investigate the potential association of leptin gene (LEP), leptin receptor gene (LEPR), and peroxisome proliferator activated receptor gamma gene (PPARG) polymorphisms with humoral immune response to influenza vaccine. Methods: Based on the seroconversion to influenza vaccine, 227 low-responders and 365 responders were selected in this study, and 11 candidate single nucleotide polymorphisms (SNPs) were genotyped using the MassARRAY technology platform. Univariate and multivariate logistic regression analyses were used to explore the association of SNPs in LEP, LEPR, and PPARG with humoral immune response to influenza vaccine. We also conducted a stratified analysis by gender to further clarify this association. The haplotypes analysis was performed using SNPStats. Results: Significant differences were observed in the genotypic distribution of PPARG rs17793951 between the two groups (p = 0.001), and the PPARG rs17793951 AG + GG genotype was associated with a higher risk of low responsiveness to influenza vaccine adjusted for gender and age (additive genetic model: OR = 2.94, 95% CI = 1.67-5.19, dominant genetic model: OR = 2.81, 95% CI = 1.61-4.92). No significant association of other SNPs in LEP and LEPR with immune response to influenza vaccine was found. The stratified analysis found the gender difference in the association of LEPR and PPARG variants with immune response to influenza vaccine. We found that LEPR rs6673591 GA + AA genotype was correlated with low responsiveness to influenza vaccine only in males (OR = 1.96, 95% CI = 1.05-3.67), and PPARG rs17793951 AG + GG genotype was associated with low responsiveness to influenza vaccine in females (OR = 3.28, 95% CI = 1.61-6.67). Compared with the CGGAGGC haplotype composed of LEPR rs1327118, rs7602, rs1137101, rs1938489, rs6673591, rs1137100, and rs13306523, the CAAAAAC haplotype was positively correlated with immune response of influenza vaccine (OR = 0.34, 95% CI = 0.15-0.77). Haplotype TG comprised of PPARG rs796313 and rs17793951 was associated with a 2.85-fold increased risk of low responsiveness to influenza vaccine. Conclusion: Our study identified that PPARG rs17793951 variants were significantly associated with the immune response to influenza vaccine.
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Affiliation(s)
- Mao Li
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Guangzhou, China
| | - Hejiang Wei
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Prevention and Control, Beijing, China
| | - Shuyi Zhong
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Guangzhou, China
| | - Yanhui Cheng
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Prevention and Control, Beijing, China
| | - Simin Wen
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Guangzhou, China
| | - Dayan Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Prevention and Control, Beijing, China
| | - Yuelong Shu
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Guangzhou, China
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23
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Muscogiuri G, Pugliese G, Laudisio D, Castellucci B, Barrea L, Savastano S, Colao A. The impact of obesity on immune response to infection: Plausible mechanisms and outcomes. Obes Rev 2021; 22:e13216. [PMID: 33719175 DOI: 10.1111/obr.13216] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 12/22/2022]
Abstract
Emerging data suggest an association between obesity and infectious diseases. Although the mechanisms underlying this link are not well established, a number of potential factors may be involved. Indeed, the obesity-related vulnerability to infectious diseases could be due to chronic low-grade inflammation, hyperglycemia, hyperinsulinemia, and hyperleptinemia, which lead to a weakening of both the innate and adaptive immune responses. In addition, obesity results in anatomical-functional changes by the mechanical obstacle of excessive adipose tissue that blunt the respiratory mechanisms and predisposing to respiratory infections. Subjects with obesity are also at risk of skin folds and sweat more profusely due to the thick layers of subcutaneous fat, favoring the proliferation of microorganisms and slowing the repair of wounds down. All these factors make subjects with obesity more prone to develop nosocomial infections, surgical site, skin and soft tissue infections, bacteremia, urinary tract infections, and mycosis. Furthermore, infections in subjects with obesity have a worse prognosis, frequently prolonging hospitalization time as demonstrated for several flu viruses and recently for COVID-19. Thus, the aim of this manuscript is to provide an overview of the current clinical evidence on the associations between obesity and infectious diseases highlighting physio pathological insights involved in this link.
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Affiliation(s)
- Giovanna Muscogiuri
- Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy
| | - Gabriella Pugliese
- Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy
| | - Daniela Laudisio
- Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy
| | - Bianca Castellucci
- Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy
| | - Luigi Barrea
- Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy
| | - Silvia Savastano
- Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy
| | - Annamaria Colao
- Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Unità di Endocrinologia, Università Federico II di Napoli, Napoli, Italy.,Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", Università Federico II di Napoli, Napoli, Italy
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24
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Davanzo GG, Castro G, Moraes-Vieira PMM. Immunometabolic regulation of adipose tissue resident immune cells. Curr Opin Pharmacol 2021; 58:44-51. [PMID: 33878567 DOI: 10.1016/j.coph.2021.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 12/19/2022]
Abstract
Adipose tissue (AT) performs immunoregulatory functions beyond fat storage. In addition to adipocytes, AT has a diverse spectrum of resident and infiltrating immune cells in health and disease. Immune cells contribute to the homeostatic function of AT by adapting their metabolism in accordance with the microenvironment. However, how the metabolic reprogramming of immune cells affects their inflammatory profile and the subsequent implication for adipocyte function is not completely elucidated. Here, we discuss the available data on metabolic regulatory processes implicated in the control of adipose tissue-resident immune cells and their crosstalk with adipocytes.
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Affiliation(s)
- Gustavo Gastão Davanzo
- Laboratory of Immunometabolism, Department of Genetics, Evolution, Microbiology, and Immunology, Institute of Biology, University of Campinas, SP, Brazil
| | - Gisele Castro
- Laboratory of Immunometabolism, Department of Genetics, Evolution, Microbiology, and Immunology, Institute of Biology, University of Campinas, SP, Brazil; Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, SP, Brazil
| | - Pedro Manoel M Moraes-Vieira
- Laboratory of Immunometabolism, Department of Genetics, Evolution, Microbiology, and Immunology, Institute of Biology, University of Campinas, SP, Brazil; Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, SP, Brazil; Obesity and Comorbidities Research Center (OCRC), University of Campinas, SP, Brazil; Experimental Medicine Research Cluster (EMRC), University of Campinas, SP, Brazil.
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25
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de Candia P, Prattichizzo F, Garavelli S, Alviggi C, La Cava A, Matarese G. The pleiotropic roles of leptin in metabolism, immunity, and cancer. J Exp Med 2021; 218:211994. [PMID: 33857282 PMCID: PMC8056770 DOI: 10.1084/jem.20191593] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/11/2022] Open
Abstract
The discovery of the archetypal adipocytokine leptin and how it regulates energy homeostasis have represented breakthroughs in our understanding of the endocrine function of the adipose tissue and the biological determinants of human obesity. Investigations on leptin have also been instrumental in identifying physio-pathological connections between metabolic regulation and multiple immunological functions. For example, the description of the promoting activities of leptin on inflammation and cell proliferation have recognized the detrimental effects of leptin in connecting dysmetabolic conditions with cancer and with onset and/or progression of autoimmune disease. Here we review the multiple biological functions and complex framework of operations of leptin, discussing why and how the pleiotropic activities of this adipocytokine still pose major hurdles in the development of effective leptin-based therapeutic opportunities for different clinical conditions.
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Affiliation(s)
- Paola de Candia
- Istituto di Ricovero e Cura a Carattere Scientifico MultiMedica, Milan, Italy
| | | | - Silvia Garavelli
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Carlo Alviggi
- Department of Neuroscience, Reproductive Science and Odontostomatology, Università di Napoli "Federico II," Naples, Italy
| | - Antonio La Cava
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - Giuseppe Matarese
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche, Naples, Italy.,T reg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II," Naples, Italy
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26
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Bishop EL, Gudgeon N, Dimeloe S. Control of T Cell Metabolism by Cytokines and Hormones. Front Immunol 2021; 12:653605. [PMID: 33927722 PMCID: PMC8076900 DOI: 10.3389/fimmu.2021.653605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 03/16/2021] [Indexed: 12/14/2022] Open
Abstract
Dynamic, coordinated changes in metabolic pathway activity underpin the protective and inflammatory activity of T cells, through provision of energy and biosynthetic precursors for effector functions, as well as direct effects of metabolic enzymes, intermediates and end-products on signaling pathways and transcriptional mechanisms. Consequently, it has become increasingly clear that the metabolic status of the tissue microenvironment directly influences T cell activity, with changes in nutrient and/or metabolite abundance leading to dysfunctional T cell metabolism and interlinked immune function. Emerging evidence now indicates that additional signals are integrated by T cells to determine their overall metabolic phenotype, including those arising from interaction with cytokines and hormones in their environment. The impact of these on T cell metabolism, the mechanisms involved and the pathological implications are discussed in this review article.
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Affiliation(s)
| | | | - Sarah Dimeloe
- College of Medical and Dental Sciences, Institute of Immunology and Immunotherapy, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
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27
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Golden TN, Simmons RA. Immune dysfunction in developmental programming of type 2 diabetes mellitus. Nat Rev Endocrinol 2021; 17:235-245. [PMID: 33526907 PMCID: PMC7969450 DOI: 10.1038/s41574-020-00464-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/17/2020] [Indexed: 01/30/2023]
Abstract
Intrauterine growth restriction (IUGR) is a common complication of pregnancy and increases the risk of the offspring developing type 2 diabetes mellitus (T2DM) later in life. Alterations in the immune system are implicated in the pathogenesis of IUGR-induced T2DM. The development of the fetal immune system is a delicate balance as it must remain tolerant of maternal antigens whilst also preparing for the post-birth environment. In addition, the fetal immune system is susceptible to an altered intrauterine milieu caused by maternal and placental inflammatory mediators or secondary to nutrient and oxygen deprivation. Pancreatic-resident macrophages populate the pancreas during fetal development, and their phenotype is dynamic through the neonatal period. Furthermore, macrophages in the islets are instrumental in islet development as they influence β-cell proliferation and islet neogenesis. In addition, cytokines, derived from β-cells and macrophages, are important to islet homeostasis in the fetus and adult and, when perturbed, can cause islet dysfunction. Several activated immune pathways have been identified in the islets of people who experienced IUGR, with alternations in the levels of IL-1β and IL-4 as well as changes in TGFβ signalling. Leptin levels are also altered. Immunomodulation has shown therapeutic benefit in T2DM and might be particularly useful in IUGR-induced T2DM.
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Affiliation(s)
- Thea N Golden
- Center for Research on Reproduction and Women's Health, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA, USA
- Center of Excellence in Environmental Toxicology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA, USA
| | - Rebecca A Simmons
- Center for Research on Reproduction and Women's Health, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA, USA.
- Center of Excellence in Environmental Toxicology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA, USA.
- Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
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28
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Guglielmi V, Colangeli L, D’Adamo M, Sbraccia P. Susceptibility and Severity of Viral Infections in Obesity: Lessons from Influenza to COVID-19. Does Leptin Play a Role? Int J Mol Sci 2021; 22:ijms22063183. [PMID: 33804765 PMCID: PMC8003928 DOI: 10.3390/ijms22063183] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/05/2021] [Accepted: 03/18/2021] [Indexed: 12/13/2022] Open
Abstract
The recent pandemic Sars-CoV2 infection and studies on previous influenza epidemic have drawn attention to the association between the obesity and infectious diseases susceptibility and worse outcome. Metabolic complications, nutritional aspects, physical inactivity, and a chronic unbalance in the hormonal and adipocytokine microenvironment are major determinants in the severity of viral infections in obesity. By these pleiotropic mechanisms obesity impairs immune surveillance and the higher leptin concentrations produced by adipose tissue and that characterize obesity substantially contribute to such immune response dysregulation. Indeed, leptin not only controls energy balance and body weight, but also plays a regulatory role in the interplay between energy metabolism and immune system. Since leptin receptor is expressed throughout the immune system, leptin may exert effects on cells of both innate and adaptive immune system. Chronic inflammatory states due to metabolic (i.e., obesity) as well as infectious diseases increase leptin concentrations and consequently lead to leptin resistance further fueling inflammation. Multiple factors, including inflammation and ER stress, contribute to leptin resistance. Thus, if leptin is recognized as one of the adipokines responsible for the low grade inflammation found in obesity, on the other hand, impairments of leptin signaling due to leptin resistance appear to blunt the immunologic effects of leptin and possibly contribute to impaired vaccine-induced immune responses. However, many aspects concerning leptin interactions with inflammation and immune system as well as the therapeutical approaches to overcome leptin resistance and reduced vaccine effectiveness in obesity remain a challenge for future research.
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29
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Hu H, Garcia-Barrio M, Jiang ZS, Chen YE, Chang L. Roles of Perivascular Adipose Tissue in Hypertension and Atherosclerosis. Antioxid Redox Signal 2021; 34:736-749. [PMID: 32390459 PMCID: PMC7910418 DOI: 10.1089/ars.2020.8103] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Significance: Perivascular adipose tissue (PVAT), which is present surrounding most blood vessels, from the aorta to the microvasculature of the dermis, is mainly composed of fat cells, fibroblasts, stem cells, mast cells, and nerve cells. Although the PVAT is objectively present, its physiological and pathological significance has long been ignored. Recent Advances: PVAT was considered as a supporting component of blood vessels and a protective cushion to the vessel wall from the neighboring tissues during relaxation and contraction. Nonetheless, further extensive research found that PVAT actively regulates blood vessel tone through PVAT-derived vasoactive factors, including both relaxing and contracting factors. In addition, PVAT contributes to atherosclerosis through paracrine secretion of a large number of bioactive factors such as adipokines and cytokines. Thereby, PVAT regulates the functions of blood vessels through various mechanisms operating directly on PVAT or on the underlying vessel layers, including vascular smooth muscle cells (VSMCs) and endothelial cells (ECs). Critical Issues: PVAT is a unique adipose tissue that plays an essential role in maintaining the vascular structure and regulating vascular function and homeostasis. This review focuses on recent updates on the various PVAT roles in hypertension and atherosclerosis. Future Directions: Future studies should further investigate the actual contribution of alterations in PVAT metabolism to the overall systemic outcomes of cardiovascular disease, which remains largely unknown. In addition, the messengers and underlying mechanisms responsible for the crosstalk between PVAT and ECs and VSMCs in the vascular wall should be systematically addressed, as well as the contributions of PVAT aging to vascular dysfunction.
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Affiliation(s)
- Hengjing Hu
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Minerva Garcia-Barrio
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Zhi-Sheng Jiang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Yuqing Eugene Chen
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Lin Chang
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
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30
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The complex role of adipokines in obesity, inflammation, and autoimmunity. Clin Sci (Lond) 2021; 135:731-752. [PMID: 33729498 PMCID: PMC7969664 DOI: 10.1042/cs20200895] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/24/2021] [Accepted: 03/04/2021] [Indexed: 12/12/2022]
Abstract
The global obesity epidemic is a major contributor to chronic disease and disability in the world today. Since the discovery of leptin in 1994, a multitude of studies have characterized the pathological changes that occur within adipose tissue in the obese state. One significant change is the dysregulation of adipokine production. Adipokines are an indispensable link between metabolism and optimal immune system function; however, their dysregulation in obesity contributes to chronic low-grade inflammation and disease pathology. Herein, I will highlight current knowledge on adipokine structure and physiological function, and focus on the known roles of these factors in the modulation of the immune response. I will also discuss adipokines in rheumatic and autoimmune diseases.
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31
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Fedele D, De Francesco A, Riso S, Collo A. Obesity, malnutrition, and trace element deficiency in the coronavirus disease (COVID-19) pandemic: An overview. Nutrition 2021; 81:111016. [PMID: 33059127 PMCID: PMC7832575 DOI: 10.1016/j.nut.2020.111016] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/24/2020] [Accepted: 08/29/2020] [Indexed: 02/06/2023]
Abstract
The world is currently facing the coronavirus disease (COVID-19) pandemic which places great pressure on health care systems and workers, often presents with severe clinical features, and sometimes requires admission into intensive care units. Derangements in nutritional status, both for obesity and malnutrition, are relevant for the clinical outcome in acute illness. Systemic inflammation, immune system impairment, sarcopenia, and preexisting associated conditions, such as respiratory, cardiovascular, and metabolic diseases related to obesity, could act as crucial factors linking nutritional status and the course and outcome of COVID-19. Nevertheless, vitamins and trace elements play an essential role in modulating immune response and inflammatory status. Overall, evaluation of the patient's nutritional status is not negligible for its implications on susceptibility, course, severity, and responsiveness to therapies, in order to perform a tailored nutritional intervention as an integral part of the treatment of patients with COVID-19. The aim of this study was to review the current data on the relevance of nutritional status, including trace elements and vitamin status, in influencing the course and outcome of the disease 3 mo after the World Health Organization's declaration of COVID-19 as a pandemic.
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Affiliation(s)
- Debora Fedele
- Dietetic and Clinical Nutrition Unit, San Giovanni Battista Hospital, Città della Salute e della Scienza, Turin, Italy.
| | - Antonella De Francesco
- Dietetic and Clinical Nutrition Unit, San Giovanni Battista Hospital, Città della Salute e della Scienza, Turin, Italy
| | - Sergio Riso
- Dietetic and Clinical Nutrition Unit, Maggiore della Carità Hospital, Novara, Italy
| | - Alessandro Collo
- Dietetic and Clinical Nutrition Unit, Maggiore della Carità Hospital, Novara, Italy
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32
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Crouch M, Al-Shaer A, Shaikh SR. Hormonal Dysregulation and Unbalanced Specialized Pro-Resolving Mediator Biosynthesis Contribute toward Impaired B Cell Outcomes in Obesity. Mol Nutr Food Res 2021; 65:e1900924. [PMID: 32112513 PMCID: PMC8627245 DOI: 10.1002/mnfr.201900924] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 02/09/2020] [Indexed: 12/16/2022]
Abstract
Diet-induced obesity is associated with impaired B-cell-driven humoral immunity, which coincides with chronic inflammation and has consequences for responses to infections and vaccinations. Key nutritional, cellular, and molecular mechanisms by which obesity may impair aspects of humoral immunity such as B cell development, class switch recombination, and formation of long-lived antibody secreting cells are reviewed. A key theme to emerge is the central role of white adipose tissue on the formation and function of pro-inflammatory B cell subsets that exacerbate insulin resistance. The underlying role of select hormones such as leptin is highlighted, which may be driving the formation of pro-inflammatory B cells in the absence of antigen stimulation. This review also extensively covers the regulatory role of lipid metabolites such as prostaglandins and specialized pro-resolving mediators (SPMs) that are synthesized from polyunsaturated fatty acids. Notably, SPM biosynthesis is impaired in obesity and contributes toward impaired antibody production. Future directions for research, including avenues for therapeutic intervention, are included.
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Affiliation(s)
- Miranda Crouch
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Abrar Al-Shaer
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Saame Raza Shaikh
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
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33
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Marrodan M, Farez MF, Balbuena Aguirre ME, Correale J. Obesity and the risk of Multiple Sclerosis. The role of Leptin. Ann Clin Transl Neurol 2020; 8:406-424. [PMID: 33369280 PMCID: PMC7886048 DOI: 10.1002/acn3.51291] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/03/2020] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVE To investigate the effects of leptin on different T-cell populations, in order to gain more insight into the link between leptin and obesity. METHODS Three hundred and nine RRMS patients and 322 controls participated in a cross-sectional survey, to confirm whether excess weight/obesity in adolescence or early adulthood increased the risk of MS. Serum leptin levels were determined by ELISA. MBP83-102 , and MOG63-87 peptide-specific T cells lines were expanded from peripheral blood mononuclear cells. Leptin receptor expression was measured by RT-PCR and flow cytometry. Bcl-2, p-STAT3, pERK1/2, and p27kip1 expression were assayed using ELISA, and apoptosis induction was determined by Annexin V detection. Cytokines were assessed by ELISPOT and ELISA, and regulatory T cells (Tregs) by flow cytometry. RESULTS Logistic regression analysis, showed excess weight at age 15, and obesity at 20 years of age increased MS risk (OR = 2.16, P = 0.01 and OR = 3.9, P = 0.01). Leptin levels correlated with BMI in both groups. The addition of Leptin increased autoreactive T-cell proliferation, reduced apoptosis induction, and promoted proinflammatory cytokine secretion. Obese patients produced more proinflammatory cytokines compared to overweight/normal/underweight subjects. Inverse correlation was found between leptin levels and circulating Treg cells (r = -0.97, P < 0.0001). Leptin inhibited Treg proliferation. Effects of leptin on CD4+ CD25- effector T cells were mediated by increased STAT3 and ERK1/2 phosphorylation, and down modulation of the cell cycle inhibitor P27kip1 . In contrast, leptin effects on Tregs resulted from decreased phosphorylation of ERK1/2 and upregulation of p27kip1 . INTERPRETATION Leptin promotes autoreactive T-cell proliferation and proinflammatory cytokine secretion, but inhibits Treg-cell proliferation.
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34
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Kwok S, Adam S, Ho JH, Iqbal Z, Turkington P, Razvi S, Le Roux CW, Soran H, Syed AA. Obesity: A critical risk factor in the COVID-19 pandemic. Clin Obes 2020; 10:e12403. [PMID: 32857454 PMCID: PMC7460880 DOI: 10.1111/cob.12403] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/04/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022]
Abstract
Obesity is an emerging independent risk factor for susceptibility to and severity of coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Previous viral pandemics have shown that obesity, particularly severe obesity (BMI > 40 kg/m2 ), is associated with increased risk of hospitalization, critical care admission and fatalities. In this narrative review, we examine emerging evidence of the influence of obesity on COVID-19, the challenges to clinical management from pulmonary, endocrine and immune dysfunctions in individuals with obesity and identify potential areas for further research. We recommend that people with severe obesity be deemed a vulnerable group for COVID-19; clinical trials of pharmacotherapeutics, immunotherapies and vaccination should prioritize inclusion of people with obesity.
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Affiliation(s)
- See Kwok
- Cardiovascular Trials UnitManchester University NHS Foundation TrustManchesterUK
- Faculty of BiologyMedicine and Health, University of ManchesterManchesterUK
| | - Safwaan Adam
- Faculty of BiologyMedicine and Health, University of ManchesterManchesterUK
- Department of EndocrinologyChristie NHS Foundation TrustManchesterUK
| | - Jan Hoong Ho
- Cardiovascular Trials UnitManchester University NHS Foundation TrustManchesterUK
- Faculty of BiologyMedicine and Health, University of ManchesterManchesterUK
| | - Zohaib Iqbal
- Cardiovascular Trials UnitManchester University NHS Foundation TrustManchesterUK
- Faculty of BiologyMedicine and Health, University of ManchesterManchesterUK
| | - Peter Turkington
- Department of Respiratory MedicineSalford Royal NHS Foundation TrustSalfordUK
| | - Salman Razvi
- Cardiovascular Research CentreInstitute of Genetic Medicine, Newcastle UniversityNewcastle upon TyneUK
| | - Carel W. Le Roux
- Diabetes Complications Research CentreUniversity College DublinDublinIreland
| | - Handrean Soran
- Cardiovascular Trials UnitManchester University NHS Foundation TrustManchesterUK
- Faculty of BiologyMedicine and Health, University of ManchesterManchesterUK
| | - Akheel A. Syed
- Faculty of BiologyMedicine and Health, University of ManchesterManchesterUK
- Department of DiabetesEndocrinology and Obesity Medicine, Salford Royal NHS Foundation TrustSalfordUK
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35
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Modulation of Leptin and Leptin Receptor Expression in Mice Acutely Infected with Neospora caninum. Pathogens 2020; 9:pathogens9070587. [PMID: 32709166 PMCID: PMC7399848 DOI: 10.3390/pathogens9070587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/06/2020] [Accepted: 07/16/2020] [Indexed: 11/17/2022] Open
Abstract
Neospora caninum is an apicomplexan parasite that in cattle assumes particular importance, as it is responsible for abortions reported worldwide. Leptin is an adipokine mainly secreted by adipocytes, which beside its role in maintaining metabolic homeostasis also has important effects in both innate and adaptive immunity. In previous work, we showed that mice chronically infected with N. caninum had elevated serum leptin levels. Here, we sought to assess whether acute infection with N. caninum infection influenced the production of this adipokine as well as leptin receptor mRNA levels. Our results show that acute infection with N. caninum led to decreased leptin serum levels and mRNA expression in adipose tissue. A decrease in leptin receptor transcript variant 1 mRNA (long isoform) and leptin receptor transcript variant 3 mRNA (one of the short isoforms) expression was also observed. An increase in the number of cells staining positive for leptin in the liver of infected mice was observed, although this increase was less marked in Interleukin (IL)-12/IL-23 p40-deficient mice. Overall, our results show that N. caninum infection also influences leptin production during acute infection.
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36
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Misumi I, Starmer J, Uchimura T, Beck MA, Magnuson T, Whitmire JK. Obesity Expands a Distinct Population of T Cells in Adipose Tissue and Increases Vulnerability to Infection. Cell Rep 2020; 27:514-524.e5. [PMID: 30970254 PMCID: PMC6652206 DOI: 10.1016/j.celrep.2019.03.030] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 08/16/2018] [Accepted: 03/08/2019] [Indexed: 02/07/2023] Open
Abstract
Obesity in humans is associated with poorer health outcomes after infections compared with non-obese individuals. Here, we examined the effects of white adipose tissue and obesity on T cell responses to viral infection in mice. We show that lymphocytic choriomeningitis virus (LCMV) grows to high titer in adipose tissue. Virus-specific T cells enter the adipose tissue to resolve infection but then remain as a memory population distinct from memory T cells in lymphoid tissues. Memory T cells in adipose tissue are abundant in lean mice, and diet-induced obesity further increases memory T cell number in adipose tissue and spleen. Upon re-challenge infection, memory T cells rapidly cause severe pathogenesis, leading to increases in lipase levels, calcification of adipose tissue, pancreatitis, and reduced survival in obese mice but not lean mice. Thus, obesity leads to a unique form of viral pathogenesis involving memory T cell-dependent adipocyte destruction and damage to other tissues. Obesity is associated with increased morbidity and mortality after viral infections. Using a mouse model of obesity, Misumi et al. identify a distinct population of memory T cells in white adipose tissue and a memory cell-dependent pathogenic response to infection that leads to acute fat necrosis, pancreatitis, and lethality.
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Affiliation(s)
- Ichiro Misumi
- Department of Genetics, UNC-Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Joshua Starmer
- Department of Genetics, UNC-Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Toru Uchimura
- Department of Genetics, UNC-Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Melinda A Beck
- Department of Nutrition, UNC-Chapel Hill Gillings School of Global Public Health, Chapel Hill, NC, USA
| | - Terry Magnuson
- Department of Genetics, UNC-Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Jason K Whitmire
- Department of Genetics, UNC-Chapel Hill School of Medicine, Chapel Hill, NC, USA; Department of Microbiology & Immunology, UNC-Chapel Hill School of Medicine, Chapel Hill, NC, USA.
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Boutari C, Pappas PD, Mintziori G, Nigdelis MP, Athanasiadis L, Goulis DG, Mantzoros CS. The effect of underweight on female and male reproduction. Metabolism 2020; 107:154229. [PMID: 32289345 DOI: 10.1016/j.metabol.2020.154229] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/13/2022]
Abstract
Chronic energy deficiency can impair the hypothalamic-pituitary-gonadal (HPG) axis and lead to hypothalamic anovulation in underweight women. This review presents the syndromes related to underweight status that are associated with infertility, summarizes the underlying mechanisms, and reviews the available treatment options. Eating disorders, such as anorexia nervosa (AN), constitute the most common cause of infertility in underweight women, who, in addition, experience miscarriages, and sexual dysfunction. The relative energy deficiency in sports (RED-S; former terminology: athlete's triad) involves menstrual dysfunction due to low energy availability, which results in anovulation. Moreover, lipodystrophies, malnutrition, starvation, systematic illnesses (malignancies, endocrinopathies, infectious diseases, advanced chronic diseases, neurologic illnesses), and the utilization of drugs can cause excessive weight loss. They may result in fertility problems due to the loss of adipose tissue and the subsequent hormonal disturbances. Each of these conditions requires multidisciplinary management. Nutritional counseling should target the restoration of energy balance by increasing intake and reducing output. Medical treatment, recommended only for patients who did not respond to standard treatment, may include antipsychotics, antidepressants, or leptin administration. Finally, psychiatric treatment is considered an integral part of the standard treatment.
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Affiliation(s)
- Chrysoula Boutari
- Department of Medicine, Boston VA Healthcare System and Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Panagiotis D Pappas
- Unit of Reproductive Endocrinology, 1(st) Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Greece
| | - Gesthimani Mintziori
- Unit of Reproductive Endocrinology, 1(st) Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Greece
| | - Meletios P Nigdelis
- Unit of Reproductive Endocrinology, 1(st) Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Greece
| | - Loukas Athanasiadis
- 3(rd) Department of Psychiatry, Medical School, Aristotle University of Thessaloniki, Greece
| | - Dimitrios G Goulis
- Unit of Reproductive Endocrinology, 1(st) Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Greece
| | - Christos S Mantzoros
- Department of Medicine, Boston VA Healthcare System and Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
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Saxton SN, Clark BJ, Withers SB, Eringa EC, Heagerty AM. Mechanistic Links Between Obesity, Diabetes, and Blood Pressure: Role of Perivascular Adipose Tissue. Physiol Rev 2019; 99:1701-1763. [PMID: 31339053 DOI: 10.1152/physrev.00034.2018] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Obesity is increasingly prevalent and is associated with substantial cardiovascular risk. Adipose tissue distribution and morphology play a key role in determining the degree of adverse effects, and a key factor in the disease process appears to be the inflammatory cell population in adipose tissue. Healthy adipose tissue secretes a number of vasoactive adipokines and anti-inflammatory cytokines, and changes to this secretory profile will contribute to pathogenesis in obesity. In this review, we discuss the links between adipokine dysregulation and the development of hypertension and diabetes and explore the potential for manipulating adipose tissue morphology and its immune cell population to improve cardiovascular health in obesity.
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Affiliation(s)
- Sophie N Saxton
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Ben J Clark
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Sarah B Withers
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Etto C Eringa
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Anthony M Heagerty
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
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Lee HY, Lee EG, Hur J, Rhee CK, Kim YK, Lee SY, Kang JY. Pravastatin alleviates allergic airway inflammation in obesity-related asthma mouse model. Exp Lung Res 2019; 45:275-287. [PMID: 31608695 DOI: 10.1080/01902148.2019.1675807] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Background: Obesity is one of the factors associated with severe, uncontrolled asthma. The effect of pravastatin on asthmatic airway inflammation in obesity has not been evaluated. Methods: C57BL/6 mice were fed a high-fat diet (HFD) to induce obesity with or without ovalbumin (OVA) sensitization and challenge. Pravastatin was administered intraperitoneally during the OVA treatment. Airway inflammation and airway hyper-responsiveness (AHR) were analyzed and lung tissues were examined. The changes in mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K)/Akt signaling pathways were measured in the lung tissues. Results: HFD with OVA sensitization and challenge exacerbated eosinophilic and neutrophilic airway inflammation and increased AHR compared to lean asthma mice. The levels of cytokines examined in bronchoalveolar lavage fluid (BALF) revealed that the expressions of IL-4, 5, and 17 were elevated in the obese asthmatic group and decreased after pravastatin treatment, indicating that both the Th2 and Th17 pathways were stimulated by HFD-induced obesity and OVA challenge and suppressed by pravastatin treatment. Moreover, the serum leptin and adiponectin ratio was elevated only in obese asthmatic mice and decreased with pravastatin administration. Pravastatin successfully alleviated the airway inflammation of lung tissues and AHR in both obese and lean asthmatic mice, however, treatment with pravastatin had no effects on BALF cell counts and cytokines in lean asthma mice. In lung tissues, the phosphorylation of p38 MAPK was significantly decreased in lean as well as obese asthmatic mice. Conclusions: Pravastatin treatment in obese asthmatic mice suppressed allergic airway infiltration and AHR by inhibition of Th2 and Th17-associated signaling pathways, decreasing the leptin expression and downstream p38 MAPK signaling pathways. The effect on lean asthmatic mice was different, independent of airway cell counts and cytokines.
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Affiliation(s)
- Hwa Young Lee
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eung Gu Lee
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jung Hur
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chin Kook Rhee
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young Kyoon Kim
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sook Young Lee
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji Young Kang
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Dos Santos CMM, Diniz VLS, Bachi ALL, Dos Santos de Oliveira LC, Ghazal T, Passos MEP, de Oliveira HH, Murata G, Masi LN, Martins AR, Levada-Pires AC, Curi R, Hirabara SM, Sellitti DF, Pithon-Curi TC, Gorjão R. Moderate physical exercise improves lymphocyte function in melanoma-bearing mice on a high-fat diet. Nutr Metab (Lond) 2019; 16:63. [PMID: 31528182 PMCID: PMC6739998 DOI: 10.1186/s12986-019-0394-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 09/06/2019] [Indexed: 02/16/2023] Open
Abstract
Background Obesity can lead to a chronic systemic inflammatory state that increases the risk of cancer development. Therefore, this study aimed to evaluate the alterations in tumor non-infiltrated lymphocytes function and melanoma growth in animals maintained on a high-fat diet and/or moderate physical exercise program in a murine model of melanoma. Methods Female mice were randomly divided into eight groups: 1) normolipidic control (N), 2) normolipidic + melanoma (NM), 3) high-fat control (H), 4) high-fat + melanoma (HM), 5) normolipidic control + physical exercise (NE), 6) normolipidic melanoma + physical exercise (NEM), 7) high-fat control + physical exercise (HE), and 8) high-fat melanoma + physical exercise (HEM). After 8 weeks of diet treatment and/or moderate physical exercise protocol, melanoma was initiated by explanting B16F10 cells into one-half of the animals. Results Animals fed a high-fat diet presented high-energy consumption (30%) and body weight gain (H and HE vs N and NE, 37%; HM and HEM vs NM and NEM, 73%, respectively), whether or not they carried melanoma explants. Although the tumor growth rate was higher in animals from the HM group than in animals from any other sedentary group, it was reduced by the addition of a physical exercise regimen. We also observed an increase in stimulated peripheral lymphocyte proliferation and a decrease in the T-helper 1 response in the HEM group. Conclusions The results of the present study support the hypothesis that altering function of tumor non-infiltrated lymphocytes via exercise-related mechanisms can slow melanoma progression, indicating that the incorporation of a regular practice of moderate-intensity exercises can be a potential strategy for current therapeutic regimens in treating advanced melanoma.
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Affiliation(s)
- Cesar Miguel Momesso Dos Santos
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Vinicius Leonardo Sousa Diniz
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - André Luis Lacerda Bachi
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil.,2Department of Otorrhynolaringology, Federal University of São Paulo, São Paulo, Brazil.,Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), São Paulo, Brazil
| | - Laiane Cristina Dos Santos de Oliveira
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Tamara Ghazal
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Maria Elizabeth Pereira Passos
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Heloisa Helena de Oliveira
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Gilson Murata
- 4Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1374, CEP: 05508-900, Butanta, São Paulo, Brazil
| | - Laureane Nunes Masi
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Amanda Roque Martins
- 4Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1374, CEP: 05508-900, Butanta, São Paulo, Brazil
| | - Adriana Cristina Levada-Pires
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Rui Curi
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Sandro Massao Hirabara
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Donald F Sellitti
- 5Department of Medicine, Uniformed Services University of Health Sciences, 4301 Jones Bridge Road, Bethesda, MD USA
| | - Tania Cristina Pithon-Curi
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
| | - Renata Gorjão
- 1Interdisciplinary Post-graduate Program in Health Sciences, Cruzeiro do Sul University, Rua Galvão Bueno, 868, CEP: 01506 000, Liberdade, São Paulo, Brazil
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Barone I, Giordano C, Bonofiglio D, Andò S, Catalano S. The weight of obesity in breast cancer progression and metastasis: Clinical and molecular perspectives. Semin Cancer Biol 2019; 60:274-284. [PMID: 31491560 DOI: 10.1016/j.semcancer.2019.09.001] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/01/2019] [Indexed: 02/06/2023]
Abstract
The escalating epidemic of overweight and obesity is currently recognized as one of the most significant health and economic concern worldwide. At the present time, over 1.9 billion adults and more than 600 million people can be, respectively, classified as overweight or obese, and numbers will continue to increase in the coming decades. This alarming scenario implies important clinical implications since excessive adiposity can progressively cause and/or exacerbate a wide spectrum of co-morbidities, including type 2 diabetes mellitus, hypertension, cardiovascular disease, and even certain types of cancer, including breast cancer. Indeed, pathological remodelling of white adipose tissue and increased levels of fat-specific cytokines (mainly leptin), as a consequence of the obesity condition, have been associated with several hallmarks of breast cancer, such as sustained proliferative signaling, cellular energetics, inflammation, angiogenesis, activating invasion and metastasis. Different preclinical and clinical data have provided evidence indicating that obesity may worsen the incidence, the severity, and the mortality of breast cancer. In the present review, we will discuss the epidemiological connection between obesity and breast cancer progression and metastasis and we will highlight the candidate players involved in this dangerous relationship. Since the major cause of death from cancer is due to widespread metastases, understanding these complex mechanisms will provide insights for establishing new therapeutic interventions to prevent/blunt the effects of obesity and thwart breast tumor progression and metastatic growth.
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Affiliation(s)
- Ines Barone
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, 87036, Rende, CS, Italy.
| | - Cinzia Giordano
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, 87036, Rende, CS, Italy; Centro Sanitario, University of Calabria, Via P Bucci, 87036, Rende, CS, Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, 87036, Rende, CS, Italy
| | - Sebastiano Andò
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, 87036, Rende, CS, Italy; Centro Sanitario, University of Calabria, Via P Bucci, 87036, Rende, CS, Italy
| | - Stefania Catalano
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, 87036, Rende, CS, Italy.
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Nyambuya TM, Dludla PV, Mxinwa V, Nkambule BB. Obesity-induced inflammation and insulin resistance: A mini-review on T-cells. Metabol Open 2019; 3:100015. [PMID: 32812921 PMCID: PMC7424835 DOI: 10.1016/j.metop.2019.100015] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 07/29/2019] [Accepted: 08/08/2019] [Indexed: 12/21/2022] Open
Abstract
Excessive lipid accumulation in an obese state is linked with activation and release of detrimental cytokines and chemokines that promote metabolic dysregulation. In fact, emerging experimental evidence shows that abnormal modulation of T-cells in an obese state correlates with the development and progression of insulin resistance. Importantly, the evolving concept linking insulin resistance with impaired immunological mechanisms such as T-cell responses provides new prospects for understanding the role of inflammation in moderating metabolic complications.
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Affiliation(s)
- Tawanda Maurice Nyambuya
- School of Laboratory Medicine and Medical Sciences (SLMMS), College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
- Department of Health Sciences, Faculty of Health and Applied Sciences, Namibia University of Science and Technology, Windhoek, Namibia
| | - Phiwayinkosi Vusi Dludla
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, Tygerberg, South Africa
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Vuyolwethu Mxinwa
- School of Laboratory Medicine and Medical Sciences (SLMMS), College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Bongani Brian Nkambule
- School of Laboratory Medicine and Medical Sciences (SLMMS), College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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Rivadeneira DB, DePeaux K, Wang Y, Kulkarni A, Tabib T, Menk AV, Sampath P, Lafyatis R, Ferris RL, Sarkar SN, Thorne SH, Delgoffe GM. Oncolytic Viruses Engineered to Enforce Leptin Expression Reprogram Tumor-Infiltrating T Cell Metabolism and Promote Tumor Clearance. Immunity 2019; 51:548-560.e4. [PMID: 31471106 DOI: 10.1016/j.immuni.2019.07.003] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 05/16/2019] [Accepted: 07/12/2019] [Indexed: 02/07/2023]
Abstract
Immunotherapy can reinvigorate dormant responses to cancer, but response rates remain low. Oncolytic viruses, which replicate in cancer cells, induce tumor lysis and immune priming, but their immune consequences are unclear. We profiled the infiltrate of aggressive melanomas induced by oncolytic Vaccinia virus using RNA sequencing and found substantial remodeling of the tumor microenvironment, dominated by effector T cell influx. However, responses to oncolytic viruses were incomplete due to metabolic insufficiencies induced by the tumor microenvironment. We identified the adipokine leptin as a potent metabolic reprogramming agent that supported antitumor responses. Leptin metabolically reprogrammed T cells in vitro, and melanoma cells expressing leptin were immunologically controlled in mice. Engineering oncolytic viruses to express leptin in tumor cells induced complete responses in tumor-bearing mice and supported memory development in the tumor infiltrate. Thus, leptin can provide metabolic support to tumor immunity, and oncolytic viruses represent a platform to deliver metabolic therapy.
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Affiliation(s)
- Dayana B Rivadeneira
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kristin DePeaux
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yiyang Wang
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA; School of Medicine, Tsinghua University, Beijing, China
| | - Aditi Kulkarni
- Head and Neck Cancer SPORE, University of Pittsburgh, Pittsburgh, PA, USA
| | - Tracy Tabib
- Division of Rheumatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ashley V Menk
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Robert Lafyatis
- Division of Rheumatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Robert L Ferris
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA; Head and Neck Cancer SPORE, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Stephen H Thorne
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Greg M Delgoffe
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA; Head and Neck Cancer SPORE, University of Pittsburgh, Pittsburgh, PA, USA.
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Geltink RIK, Kyle RL, Pearce EL. Unraveling the Complex Interplay Between T Cell Metabolism and Function. Annu Rev Immunol 2019; 36:461-488. [PMID: 29677474 DOI: 10.1146/annurev-immunol-042617-053019] [Citation(s) in RCA: 462] [Impact Index Per Article: 92.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Metabolism drives function, on both an organismal and a cellular level. In T cell biology, metabolic remodeling is intrinsically linked to cellular development, activation, function, differentiation, and survival. After naive T cells are activated, increased demands for metabolic currency in the form of ATP, as well as biomass for cell growth, proliferation, and the production of effector molecules, are met by rewiring cellular metabolism. Consequently, pharmacological strategies are being developed to perturb or enhance selective metabolic processes that are skewed in immune-related pathologies. Here we review the most recent advances describing the metabolic changes that occur during the T cell lifecycle. We discuss how T cell metabolism can have profound effects on health and disease and where it might be a promising target to treat a variety of pathologies.
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Affiliation(s)
- Ramon I Klein Geltink
- Department of Immunometabolism, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany;
| | - Ryan L Kyle
- Department of Immunometabolism, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany;
| | - Erika L Pearce
- Department of Immunometabolism, Max Planck Institute of Immunobiology and Epigenetics, Freiburg 79108, Germany;
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45
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Guerrero-Ros I, Clement CC, Reynolds CA, Patel B, Santambrogio L, Cuervo AM, Macian F. The negative effect of lipid challenge on autophagy inhibits T cell responses. Autophagy 2019; 16:223-238. [PMID: 30982401 DOI: 10.1080/15548627.2019.1606635] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Obesity is associated with changes in the immune system that significantly hinder its ability to mount efficient immune responses. Previous studies have reported a dysregulation of immune responses caused by lipid challenge; however, the mechanisms underlying that dysregulation are still not completely understood. Autophagy is an essential catabolic process through which cellular components are degraded by the lysosomal machinery. In T cells, autophagy is an actively regulated process necessary to sustain homeostasis and activation. Here, we report that CD4+ T cell responses are inhibited when cells are challenged with increasing concentrations of fatty acids. Furthermore, analysis of T cells from diet-induced obese mice confirms that high lipid load inhibits activation-induced responses in T cells. We have found that autophagy is inhibited in CD4+ T cells exposed in vitro or in vivo to lipid stress, which causes decreased autophagosome formation and degradation. Supporting that inhibition of autophagy caused by high lipid load is a key mechanism that accounts for the effects on T cell function of lipid stress, we found that ATG7 (autophagy-related 7)-deficient T cells, unable to activate autophagy, did not show additional inhibitory effects on their responses to activation when subjected to lipid challenge. Our results indicate, thus, that increased lipid load can dysregulate autophagy and cause defective T cell responses, and suggest that inhibition of autophagy may underlie some of the characteristic obesity-associated defects in the T cell compartment.Abbreviations: ACTB: actin, beta; ATG: autophagy-related; CDKN1B: cyclin-dependent kinase inhibitor 1B; HFD: high-fat diet; IFNG: interferon gamma; IL: interleukin; MAPK1/ERK2: mitogen-activated protein kinase 1; MAPK3/ERK1: mitogen-activated protein kinase 3; MAPK8/JNK: mitogen-activated protein kinase 8; LC3-I: non-conjugated form of MAP1LC3B; LC3-II: phosphatidylethanolamine-conjugated form of MAP1LC3B; MAP1LC3B: microtubule-associated protein 1 light chain 3 beta; MS: mass spectrometry; MTOR: mechanistic target of rapamycin kinase; NFATC2: nuclear factor of activated T cells, cytoplasmic, calcineurin dependent 2; NLRP3: NLR family, pyrin domain containing 3; OA: oleic acid; PI: propidium iodide; ROS: reactive oxygen species; STAT5A: signal transducer and activator of transcription 5A; TCR: T cell receptor; TH1: T helper cell type 1.
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Affiliation(s)
| | - Cristina C Clement
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Cara A Reynolds
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Bindi Patel
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Laura Santambrogio
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA.,Institute for Aging Research, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Ana M Cuervo
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY, USA.,Institute for Aging Research, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Fernando Macian
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA.,Institute for Aging Research, Albert Einstein College of Medicine, Bronx, NY, USA
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46
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Li K, Li W, Jia Y, Liu J, Tan G, Zou J, Li X, Su Y, Lei S, Sun Q. Long-term immune effects of high-level natural radiation on Yangjiang inhabitants in China. Int J Radiat Biol 2019; 95:764-770. [PMID: 30753115 DOI: 10.1080/09553002.2019.1572250] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Kun Li
- Department of Nuclear Medicine, Shandong Qianfoshan Hospital, Jinan, China
- Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wen Li
- Department of Nuclear Medicine, Shandong Qianfoshan Hospital, Jinan, China
| | - Yanying Jia
- Department of Nuclear Medicine, Shandong Qianfoshan Hospital, Jinan, China
| | - Jianxiang Liu
- Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Guangxiang Tan
- Guangdong Prevention and Treatment Center for Occupational Diseases, Guangzhou, China
| | - Jianming Zou
- Guangdong Prevention and Treatment Center for Occupational Diseases, Guangzhou, China
| | - Xiaoliang Li
- Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yinping Su
- Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shujie Lei
- Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Quanfu Sun
- Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, China
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Maurya R, Bhattacharya P, Dey R, Nakhasi HL. Leptin Functions in Infectious Diseases. Front Immunol 2018; 9:2741. [PMID: 30534129 PMCID: PMC6275238 DOI: 10.3389/fimmu.2018.02741] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 11/07/2018] [Indexed: 01/26/2023] Open
Abstract
Leptin, a pleiotropic protein has long been recognized to play an important role in the regulation of energy homeostasis, metabolism, neuroendocrine function, and other physiological functions through its effects on the central nervous system (CNS) and peripheral tissues. Leptin is secreted by adipose tissue and encoded by the obese (ob) gene. Leptin acts as a central mediator which regulates immunity as well as nutrition. Importantly, leptin can modulate both innate and adaptive immune responses. Leptin deficiency/resistance is associated with dysregulation of cytokine production, increased susceptibility toward infectious diseases, autoimmune disorders, malnutrition and inflammatory responses. Malnutrition induces a state of immunodeficiency and an inclination to death from communicable diseases. Infectious diseases are the disease of poor who invariably suffer from malnutrition that could result from reduced serum leptin levels. Thus, leptin has been placed at the center of many interrelated functions in various pathogenic conditions, such as bacterial, viruses and parasitic infections. We review herein, the recent advances on the role of leptin in malnutrition in pathogenesis of infectious diseases with a particular emphasis on parasitic diseases such as Leishmaniasis, Trypanosomiasis, Amoebiasis, and Malaria.
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Affiliation(s)
- Radheshyam Maurya
- Department of Animal Biology, School of Life Science, University of Hyderabad, Hyderabad, India
| | - Parna Bhattacharya
- Division of Emerging and Transfusion Transmitted Diseases, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
| | - Ranadhir Dey
- Division of Emerging and Transfusion Transmitted Diseases, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
| | - Hira L. Nakhasi
- Division of Emerging and Transfusion Transmitted Diseases, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
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Ather JL, Dienz O, Boyson JE, Anathy V, Amiel E, Poynter ME. Serum Amyloid A3 is required for normal lung development and survival following influenza infection. Sci Rep 2018; 8:16571. [PMID: 30410021 PMCID: PMC6224415 DOI: 10.1038/s41598-018-34901-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 10/24/2018] [Indexed: 02/06/2023] Open
Abstract
Serum amyloid A (SAA) proteins are a family of acute phase apolipoproteins implicated to directly modulate innate and adaptive immune responses. However, new studies comparing endogenous SAAs and recombinant forms of these proteins have questioned the function of SAA in inflammation and immunity. We generated SAA3 knockout mice to evaluate the contribution of SAA3 to lung development and immune-mediated lung disease. While SAA3 deficiency does not affect the generation of house dust mite-induced allergic asthma, mice lacking SAA3 develop adult-onset obesity, intrinsic airway hyperresponsiveness, increased inflammatory and fibrotic gene expression in the lung, and elevated levels of lung citrullinated proteins. Polyclonally stimulated CD4+ T cells from SAA3-/- mice exhibit impaired glycolytic activity, decreased TH2 and TH1 cytokine secretion, and elevated IL-17A production compared to wild type cells. Polyclonally stimulated CD8+ T cells from SAA3-/- mice also exhibit impaired glycolytic activity as well as a diminished capacity to produce IL-2 and IFNγ. Finally, SAA3-/- mice demonstrate increased mortality in response to H1N1 influenza infection, along with higher copy number of viral RNAs in the lung, a lack of CD8+ T cell IFNγ secretion, and decreased flu-specific antibodies. Our findings indicate that endogenous SAA3 regulates lung development and homeostasis, and is required for protection against H1N1 influenza infection.
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Affiliation(s)
- Jennifer L Ather
- Vermont Lung Center, Division of Pulmonary Disease and Critical Care, Department of Medicine, University of Vermont, Burlington, VT, 05405, USA
| | - Oliver Dienz
- Department of Surgery, University of Vermont, Burlington, VT, 05405, USA
| | - Jonathan E Boyson
- Department of Surgery, University of Vermont, Burlington, VT, 05405, USA
| | - Vikas Anathy
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, VT, 05405, USA
| | - Eyal Amiel
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, VT, 05405, USA
| | - Matthew E Poynter
- Vermont Lung Center, Division of Pulmonary Disease and Critical Care, Department of Medicine, University of Vermont, Burlington, VT, 05405, USA.
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Šimják P, Cinkajzlová A, Anderlová K, Pařízek A, Mráz M, Kršek M, Haluzík M. The role of obesity and adipose tissue dysfunction in gestational diabetes mellitus. J Endocrinol 2018; 238:R63-R77. [PMID: 29743342 DOI: 10.1530/joe-18-0032] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 05/08/2018] [Indexed: 12/15/2022]
Abstract
Gestational diabetes mellitus is defined as diabetes diagnosed in the second or third trimester of pregnancy in patients with no history of diabetes prior to gestation. It is the most common complication of pregnancy. The underlying pathophysiology shares some common features with type 2 diabetes mellitus (T2DM) combining relatively insufficient insulin secretion with increased peripheral insulin resistance. While a certain degree of insulin resistance is the physiological characteristics of the second half of pregnancy, it is significantly more pronounced in patients with gestational diabetes. Adipose tissue dysfunction and subclinical inflammation in obesity are well-described causes of increased insulin resistance in non-pregnant subjects and are often observed in individuals with T2DM. Emerging evidence of altered adipokine expression and local inflammation in adipose tissue in patients with gestational diabetes suggests an important involvement of adipose tissue in its etiopathogenesis. This review aims to summarize current knowledge of adipose tissue dysfunction and its role in the development of gestational diabetes. We specifically focus on the significance of alterations of adipokines and immunocompetent cells number and phenotype in fat. Detailed understanding of the role of adipose tissue in gestational diabetes may provide new insights into its pathophysiology and open new possibilities of its prevention and treatment.
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Affiliation(s)
- Patrik Šimják
- Department of Gynaecology and Obstetrics, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Anna Cinkajzlová
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Kateřina Anderlová
- Department of Gynaecology and Obstetrics, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
- 3rd Department of Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Antonín Pařízek
- Department of Gynaecology and Obstetrics, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Miloš Mráz
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
- Diabetes Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Michal Kršek
- 3rd Department of Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
- 2nd Internal Department, 3rd Faculty of Medicine, Charles University and University Hospital Královské Vinohrady, Prague, Czech Republic
| | - Martin Haluzík
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
- Diabetes Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
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50
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Ramos Muniz MG, Palfreeman M, Setzu N, Sanchez MA, Saenz Portillo P, Garza KM, Gosselink KL, Spencer CT. Obesity Exacerbates the Cytokine Storm Elicited by Francisella tularensis Infection of Females and Is Associated with Increased Mortality. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3412732. [PMID: 30046592 PMCID: PMC6038682 DOI: 10.1155/2018/3412732] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/30/2018] [Accepted: 05/07/2018] [Indexed: 12/15/2022]
Abstract
Infection with Francisella tularensis, the causative agent of the human disease tularemia, results in the overproduction of inflammatory cytokines, termed the cytokine storm. Excess metabolic byproducts of obesity accumulate in obese individuals and activate the same inflammatory signaling pathways as F. tularensis infection. In addition, elevated levels of leptin in obese individuals also increase inflammation. Since leptin is produced by adipocytes, we hypothesized that increased fat of obese females may make them more susceptible to F. tularensis infection compared with lean individuals. Lean and obese female mice were infected with F. tularensis and the immunopathology and susceptibility monitored. Plasma and tissue cytokines were analyzed by multiplex ELISA and real-time RT-PCR, respectively. Obese mice were more sensitive to infection, developing a more intense cytokine storm, which was associated with increased death of obese mice compared with lean mice. This enhanced inflammatory response correlated with in vitro bacteria-infected macrophage cultures where addition of leptin led to increased production of inflammatory cytokines. We conclude that increased basal leptin expression in obese individuals causes a persistent low-level inflammatory response making them more susceptible to F. tularensis infection and heightening the generation of the immunopathological cytokine storm.
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Affiliation(s)
- Mireya G. Ramos Muniz
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX, USA
| | - Matthew Palfreeman
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX, USA
| | - Nicole Setzu
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX, USA
| | - Michelle A. Sanchez
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX, USA
| | - Pamela Saenz Portillo
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX, USA
| | - Kristine M. Garza
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX, USA
| | - Kristin L. Gosselink
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX, USA
| | - Charles T. Spencer
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX, USA
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