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Chaubey GK, Modanwal R, Dilawari R, Talukdar S, Dhiman A, Chaudhary S, Patidar A, Raje CI, Raje M. Chronic hyperglycemia impairs anti-microbial function of macrophages in response to Mycobacterium tuberculosis infection. Immunol Res 2024; 72:644-653. [PMID: 38347341 DOI: 10.1007/s12026-024-09462-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 02/02/2024] [Indexed: 08/28/2024]
Abstract
Diabetes mellitus (DM) is a major risk factor for tuberculosis (TB), though the underlying mechanisms linking DM and TB remain ambiguous. Macrophages are a key player in the innate immune response and their phagocytic ability is enhanced in response to microbial infections. Upon infection or inflammation, they also repel invading pathogens by generating; reactive oxygen species (ROS), reactive nitrogen species (RNS), pro-inflammatory cytokines (IL-1β and IL-6), and anti-inflammatory cytokines (IL-10). However, the robustness of these innate defensive capabilities of macrophages when exposed to hyperglycemia remains unclear. In our current work, we explored the production of these host defense molecules in response to challenge with Mycobacterium tuberculosis (Mtb) infection and lipopolysaccharide (LPS) stimulation. Utilizing peritoneal macrophages from high-fat diet + streptozotocin induced diabetic mice and hyperglycemic THP-1-derived macrophages as model systems; we found that LPS stimulation and Mtb infection were ineffective in stimulating the production of ROS, RNS, and pro-inflammatory cytokines in cells exposed to hyperglycemia. On the contrary, an increase in production of anti-inflammatory cytokines was observed. To confirm the mechanism of decreased anti-bacterial activity of the diabetic macrophage, we explored activation status of these compromised macrophages and found decreased surface expression of activation (TLR-4) and differentiation markers (CD11b and CD11c). We postulate that this could be the cause for higher susceptibility for Mtb infection among diabetic individuals.
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Affiliation(s)
| | - Radheshyam Modanwal
- Institute of Microbial Technology, CSIR, Sector 39A, Chandigarh, 160036, India
| | - Rahul Dilawari
- Institute of Microbial Technology, CSIR, Sector 39A, Chandigarh, 160036, India
| | - Sharmila Talukdar
- Institute of Microbial Technology, CSIR, Sector 39A, Chandigarh, 160036, India
| | - Asmita Dhiman
- Institute of Microbial Technology, CSIR, Sector 39A, Chandigarh, 160036, India
| | - Surbhi Chaudhary
- Institute of Microbial Technology, CSIR, Sector 39A, Chandigarh, 160036, India
| | - Anil Patidar
- Institute of Microbial Technology, CSIR, Sector 39A, Chandigarh, 160036, India
| | - Chaaya Iyengar Raje
- National Institute of Pharmaceutical Education & Research, Phase X, Sector 67, SAS Nagar, Punjab, 160062, India
| | - Manoj Raje
- Institute of Microbial Technology, CSIR, Sector 39A, Chandigarh, 160036, India.
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2
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Yanqiu X, Yang Y, Xiaoqing W, Zhixuan L, Kuan Z, Xin G, Bo Z, Jinyu W, Jing C, Yan M, Aiguo M. Impact of hyperglycemia on tuberculosis treatment outcomes: a cohort study. Sci Rep 2024; 14:13586. [PMID: 38866898 PMCID: PMC11169383 DOI: 10.1038/s41598-024-64525-3] [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: 10/07/2023] [Accepted: 06/10/2024] [Indexed: 06/14/2024] Open
Abstract
Hyperglycemia is prevalent and closely associated with pulmonary tuberculosis (PTB). This study aimed to investigate the effects of hyperglycemia on the outcomes of PTB treatment. This study comprised 791 patients with PTB in total. Patients with fasting plasma glucose levels of ≥ 6.1 mmol/L were diagnosed with hyperglycemia. Anthropometric and baseline demographic data were also collected. The treatment response was assessed based on clinical symptoms (sputum production, cough, chest pain, fever, hemoptysis, night sweats, loss of appetite, and fatigue), sputum smear, chest computed tomography (CT), and adverse gastrointestinal responses (vomiting, nausea, abdominal distension, diarrhea, and constipation). A generalized estimating equation (GEE) was used to evaluate these relationships. Hyperglycemia affected 266 (33.6%) of the 791 patients with PTB. In GEE analyses, patients with hyperglycemia exhibited a greater incidence of elevated tuberculosis (TB) scores (odds ratio (OR) 1.569; 95% CI 1.040-2.369), cough (OR 1.332; 95% CI 1.050-1.690), and night sweats (OR 1.694; 95% CI 1.288-2.335). Hyperglycemia was linked with a higher risk of positive sputum smears (OR 1.941; 95% CI 1.382-2.727). During therapy, hyperglycemia was also associated with an increased incidence of vomiting (OR 2.738; 95% CI 1.041-7.198), abdominal distension (OR 2.230; 95% CI 1.193-4.171), and constipation (OR 2.372; 95% CI 1.442-3.902). However, the CT results indicated that hyperglycemia did not affect pulmonary lesions in patients with TB. Patients with TB and hyperglycemia are at a higher risk of severe clinical manifestations, positive sputum smears, and adverse gastrointestinal effects and, therefore, the special situation of hyperglycemic patients should be considered in the prevention and treatment of TB.
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Affiliation(s)
- Xu Yanqiu
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao, Shandong, China
| | - Yang Yang
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao, Shandong, China.
| | - Wu Xiaoqing
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao, Shandong, China
| | - Lei Zhixuan
- Yuncheng Center for Disease Control and Prevention, Yuncheng, Shanxi, China
| | - Zhao Kuan
- Qingdao No.6 People's Hospital, Qingdao, Shandong, China
| | - Guo Xin
- Department of Infection and Disease Control, Sunshine Union Hospital, Weifang, Shandong, China
| | - Zhang Bo
- Weifang No.2 People's Hospital, Weifang, Shandong, China
| | - Wang Jinyu
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao, Shandong, China
| | - Cai Jing
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao, Shandong, China
| | - Ma Yan
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao, Shandong, China
| | - Ma Aiguo
- Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao, Shandong, China
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3
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Akther F, Sajin D, Moonshi SS, Wu Y, Vazquez-Prada KX, Ta HT. Modeling Foam Cell Formation in A Hydrogel-Based 3D-Intimal Model: A Study of The Role of Multi-Diseases During Early Atherosclerosis. Adv Biol (Weinh) 2024; 8:e2300463. [PMID: 38200677 DOI: 10.1002/adbi.202300463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/19/2023] [Indexed: 01/12/2024]
Abstract
Monocyte recruitment and transmigration are crucial in atherosclerotic plaque development. The multi-disease complexities aggravate the situation and continue to be a constant concern for understanding atherosclerosis plaque development. Herein, a 3D hydrogel-based model that integrates disease-induced microenvironments is sought to be designed, allowing us to explore the early stages of atherosclerosis, specifically examining monocyte fate in multi-disease complexities. As a proof-of-concept study, murine cells are employed to develop the model. The model is constructed with collagen embedded with murine aortic smooth muscle cells and a murine endothelial monolayer lining. The model achieves in vitro disease complexities using external stimuli such as glucose and lipopolysaccharide (LPS). Hyperglycemia exhibits a significant increase in monocyte adhesion but no enhancement in monocyte transmigration and foam cell conversion compared to euglycemia. Chronic infection achieved by LPS stimulation results in a remarkable augment in initial monocyte attachment and a significant increment in monocyte transmigration and foam cells in all concentrations. Moreover, the model exhibits synergistic sensitivity under multi-disease conditions such as hyperglycemia and infection, enhancing initial monocyte attachment, cell transmigration, and foam cell formation. Additionally, western blot data prove the enhanced levels of inflammatory biomarkers, indicating the model's capability to mimic disease-induced complexities during early atherosclerosis progression.
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Affiliation(s)
- Fahima Akther
- Queensland Micro- and Nanotechnology, Griffith University, Nathan, Queensland, 4111, Australia
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Dimple Sajin
- Queensland Micro- and Nanotechnology, Griffith University, Nathan, Queensland, 4111, Australia
| | - Shehzahdi S Moonshi
- Queensland Micro- and Nanotechnology, Griffith University, Nathan, Queensland, 4111, Australia
| | - Yuao Wu
- Queensland Micro- and Nanotechnology, Griffith University, Nathan, Queensland, 4111, Australia
| | - Karla X Vazquez-Prada
- Queensland Micro- and Nanotechnology, Griffith University, Nathan, Queensland, 4111, Australia
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Hang Thu Ta
- Queensland Micro- and Nanotechnology, Griffith University, Nathan, Queensland, 4111, Australia
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland, 4072, Australia
- School of Environment and Science, Griffith University, Nathan, Queensland, 4111, Australia
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Orphan GPR26 Counteracts Early Phases of Hyperglycemia-Mediated Monocyte Activation and Is Suppressed in Diabetic Patients. Biomedicines 2022; 10:biomedicines10071736. [PMID: 35885041 PMCID: PMC9312814 DOI: 10.3390/biomedicines10071736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/07/2022] [Accepted: 07/13/2022] [Indexed: 11/17/2022] Open
Abstract
Diabetes is the ninth leading cause of death, with an estimated 1.5 million deaths worldwide. Type 2 diabetes (T2D) results from the body’s ineffective use of insulin and is largely the result of excess body weight and physical inactivity. T2D increases the risk of cardiovascular diseases, retinopathy, and kidney failure by two-to three-fold. Hyperglycemia, as a hallmark of diabetes, acts as a potent stimulator of inflammatory condition by activating endothelial cells and by dysregulating monocyte activation. G-protein couple receptors (GPCRs) can both exacerbate and promote inflammatory resolution. Genome-wide association studies (GWAS) indicate that GPCRs are differentially regulated in inflammatory and vessel cells from diabetic patients. However, most of these GPCRs are orphan receptors, for which the mechanism of action in diabetes is unknown. Our data indicated that orphan GPCR26 is downregulated in the PBMC isolated from T2D patients. In contrast, GPR26 was initially upregulated in human monocytes and PBMC treated with high glucose (HG) levels and then decreased upon chronic and prolonged HG exposure. GPR26 levels were decreased in T2D patients treated with insulin compared to non-insulin treated patients. Moreover, GPR26 inversely correlated with the BMI and the HbA1c of diabetic compared to non-diabetic patients. Knockdown of GPR26 enhanced monocyte ROS production, MAPK signaling, pro-inflammatory activation, monocyte adhesion to ECs, and enhanced the activity of Caspase 3, a pro-apoptotic molecule. The same mechanisms were activated by HG and exacerbated when GPR26 was knocked down. Hence, our data indicated that GPR26 is initially activated to protect monocytes from HG and is inhibited under chronic hyperglycemic conditions.
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Ateeq H, Zia A, Husain Q, Khan MS, Ahmad M. Effect of inflammation on bones in diabetic patients with periodontitis via RANKL/OPG system-A review. J Diabetes Metab Disord 2022; 21:1003-1009. [PMID: 35673491 PMCID: PMC9167386 DOI: 10.1007/s40200-021-00960-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 12/14/2021] [Indexed: 01/31/2023]
Abstract
Purpose Diabetes mellitus and periodontitis are inflammatory diseases, the severity of inflammation results in the progression and persistence of both the disorders and affects bones. Diabetic complications aggravate in diabetic subjects having periodontitis; similarly, diabetic patients are more prone to developing gingivitis and periodontitis. Periodontal and diabetic inflammation disturbs bone homeostasis, which possibly involves both innate and adaptive immune responses. The pathogenic processes that link the two diseases are the focus of much research and it is likely that upregulated inflammation arising from each condition adversely affects the other. RANKL/OPG pathway plays a prominent role in periodontal and diabetic inflammation and bone resorption. Method This review article summarises the literature on the link between inflammatory cytokines and the prevalence of disturbed bone homeostasis in diabetic patients with periodontitis. An extensive search was done in PubMed, Scopus, Medline and Google Scholar databases between April 2003 and May 2021. Result A total of 27 articles, including pilot studies, case-control studies, cross-sectional studies, cohort studies, randomized control trials, longitudinal studies, descriptive studies and experimental studies, were included in our literature review. Conclusion Since RANKL/OPG are cytokines and have immune responses, regulating these cytokines expression will help control diabetes, periodontitis and bone homeostasis. The growing evidence of bone loss and increased fracture risk in diabetic patients with periodontitis makes it imperative that health professionals carry out planned treatment focusing on monitoring oral health in diabetic patients; bone markers should also be evaluated in patients with chronic periodontitis with an impaired glycemic state.
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Affiliation(s)
- Hira Ateeq
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, India
- Dr. Ziauddin Ahmad Dental College, Aligarh Muslim University, Aligarh-202002, India
| | - Afaf Zia
- Dr. Ziauddin Ahmad Dental College, Aligarh Muslim University, Aligarh-202002, India
| | - Qayyum Husain
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, India
| | - Mohd Sajid Khan
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, India
| | - Mohd Ahmad
- Dr. Ziauddin Ahmad Dental College, Aligarh Muslim University, Aligarh-202002, India
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Shrimali NM, Agarwal S, Kaur S, Bhattacharya S, Bhattacharyya S, Prchal JT, Guchhait P. α-Ketoglutarate Inhibits Thrombosis and Inflammation by Prolyl Hydroxylase-2 Mediated Inactivation of Phospho-Akt. EBioMedicine 2021; 73:103672. [PMID: 34740102 PMCID: PMC8579134 DOI: 10.1016/j.ebiom.2021.103672] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/15/2021] [Accepted: 10/20/2021] [Indexed: 12/27/2022] Open
Abstract
Background Phospho-Akt1 (pAkt1) undergoes prolyl hydroxylation at Pro125 and Pro313 by the prolyl hydroxylase-2 (PHD2) in a reaction decarboxylating α-ketoglutarate (αKG). We investigated whether the αKG supplementation could inhibit Akt-mediated activation of platelets and monocytes, in vitro as well as in vivo, by augmenting PHD2 activity. Methods We treated platelets or monocytes isolated from healthy individuals with αKG in presence of agonists in vitro and assessed the signalling molecules including pAkt1. We supplemented mice with dietary αKG and estimated the functional responses of platelets and monocytes ex vivo. Further, we investigated the impact of dietary αKG on inflammation and thrombosis in lungs of mice either treated with thrombosis-inducing agent carrageenan or infected with SARS-CoV-2. Findings Octyl αKG supplementation to platelets promoted PHD2 activity through elevated intracellular αKG to succinate ratio, and reduced aggregation in vitro by suppressing pAkt1(Thr308). Augmented PHD2 activity was confirmed by increased hydroxylated-proline and enhanced binding of PHD2 to pAkt in αKG-treated platelets. Contrastingly, inhibitors of PHD2 significantly increased pAkt1 in platelets. Octyl-αKG followed similar mechanism in monocytes to inhibit cytokine secretion in vitro. Our data also describe a suppressed pAkt1 and reduced activation of platelets and leukocytes ex vivo from mice supplemented with dietary αKG, unaccompanied by alteration in their number. Dietary αKG significantly reduced clot formation and leukocyte accumulation in various organs including lungs of mice treated with thrombosis-inducing agent carrageenan. Importantly, in SARS-CoV-2 infected hamsters, we observed a significant rescue effect of dietary αKG on inflamed lungs with significantly reduced leukocyte accumulation, clot formation and viral load alongside down-modulation of pAkt in the lung of the infected animals. Interpretation Our study suggests that dietary αKG supplementation prevents Akt-driven maladies such as thrombosis and inflammation and rescues pathology of COVID19-infected lungs. Funding Study was funded by the Department of Biotechnology (DBT), Govt. of India (grants: BT/PR22881 and BT/PR22985); and the Science and Engineering Research Board, Govt. of India (CRG/000092).
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Affiliation(s)
- Nishith M Shrimali
- Regional Centre for Biotechnology; National Capital Region Biotech Science Cluster, Faridabad, India
| | - Sakshi Agarwal
- Regional Centre for Biotechnology; National Capital Region Biotech Science Cluster, Faridabad, India
| | - Simrandeep Kaur
- Regional Centre for Biotechnology; National Capital Region Biotech Science Cluster, Faridabad, India
| | - Sulagna Bhattacharya
- Regional Centre for Biotechnology; National Capital Region Biotech Science Cluster, Faridabad, India
| | - Sankar Bhattacharyya
- Translational Health Science Technology Institute; National Capital Region Biotech Science Cluster, Faridabad, India
| | - Josef T Prchal
- Department of Medicine, University of Utah School of Medicine & Huntsman Cancer Center and George E. Whalen Veteran's Administration Medical Center, Salt Lake City, UT, USA
| | - Prasenjit Guchhait
- Regional Centre for Biotechnology; National Capital Region Biotech Science Cluster, Faridabad, India.
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Shayo SC, Ogiso K, Kawade S, Hashiguchi H, Deguchi T, Nishio Y. Dietary obesity and glycemic excursions cause a parallel increase in STEAP4 and pro-inflammatory gene expression in murine PBMCs. Diabetol Int 2021; 13:358-371. [DOI: 10.1007/s13340-021-00542-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/05/2021] [Indexed: 11/29/2022]
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8
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Altered Secretome of Diabetic Monocytes Could Negatively Influence Fracture Healing-An In Vitro Study. Int J Mol Sci 2021; 22:ijms22179212. [PMID: 34502120 PMCID: PMC8430926 DOI: 10.3390/ijms22179212] [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: 06/23/2021] [Revised: 08/23/2021] [Accepted: 08/23/2021] [Indexed: 12/12/2022] Open
Abstract
Diabetes mellitus is a main risk factor for delayed fracture healing and fracture non-unions. Successful fracture healing requires stimuli from different immune cells, known to be affected in diabetics. Especially, application of mononuclear cells has been proposed to promote wound and fracture healing. Thus, aim was to investigate the effect of pre-/diabetic conditions on mononuclear cell functions essential to promote osteoprogenitor cell function. We here show that pre-/diabetic conditions suppress the expression of chemokines, e.g., CCL2 and CCL8 in osteoprogenitor cells. The associated MCP-1 and MCP-2 were significantly reduced in serum of diabetics. Both MCPs chemoattract mononuclear THP-1 cells. Migration of these cells is suppressed under hyperglycemic conditions, proposing that less mononuclear cells invade the site of fracture in diabetics. Further, we show that the composition of cytokines secreted by mononuclear cells strongly differ between diabetics and controls. Similar is seen in THP-1 cells cultured under hyperinsulinemia or hyperglycemia. The altered secretome reduces the positive effect of the THP-1 cell conditioned medium on migration of osteoprogenitor cells. In summary, our data support that factors secreted by mononuclear cells may support fracture healing by promoting migration of osteoprogenitor cells but suggest that this effect might be reduced in diabetics.
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9
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Janicova A, Haag F, Xu B, Garza AP, Dunay IR, Neunaber C, Nowak AJ, Cavalli P, Marzi I, Sturm R, Relja B. Acute Alcohol Intoxication Modulates Monocyte Subsets and Their Functions in a Time-Dependent Manner in Healthy Volunteers. Front Immunol 2021; 12:652488. [PMID: 34084163 PMCID: PMC8167072 DOI: 10.3389/fimmu.2021.652488] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/26/2021] [Indexed: 12/21/2022] Open
Abstract
Background Excessive alcohol intake is associated with adverse immune response-related effects, however, acute and chronic abuse differently modulate monocyte activation. In this study, we have evaluated the phenotypic and functional changes of monocytes in acutely intoxicated healthy volunteers (HV). Methods Twenty-two HV consumed individually adjusted amounts of alcoholic beverages until reaching a blood alcohol level of 1‰ after 4h (T4). Peripheral blood was withdrawn before and 2h (T2), 4h (T4), 6h (T6), 24h (T24), and 48h (T48) after starting the experiment and stained for CD14, CD16 and TLR4. CD14brightCD16-, CD14brightCD16+ and CD14dimCD16+ monocyte subsets and their TLR4 expression were analyzed by flow cytometry. Inflammasome activation via caspase-1 in CD14+ monocytes was measured upon an ex vivo in vitro LPS stimulation. Systemic IL-1β and adhesion capacity of isolated CD14+ monocytes upon LPS stimulation were evaluated. Results The percentage of CD14+ monocyte did not change following alcohol intoxication, whereas CD14brightCD16- monocyte subset significantly increased at T2 and T24, CD14brightCD16+ at T2, T4 and T6 and CD14dimCD16+ at T4 and T6. The relative fraction of TLR4 expressing CD14+ monocytes as well as the density of TLR4 surface presentation increased at T2 and decreased at T48 significantly. TLR4+CD14+ monocytes were significantly enhanced in all subsets at T2. TLR4 expression significantly decreased in CD14brightCD16- at T48, in CD14brightCD16+ at T24 and T48, increased in CD14dimCD16+ at T2. IL-1β release upon LPS stimulation decreased at T48, correlating with TLR4 receptor expression. Alcohol downregulated inflammasome activation following ex vivo in vitro stimulation with LPS between T2 and T48 vs. T0. The adhesion capacity of CD14+ monocytes decreased from T2 with significance at T4, T6 and T48. Following LPS administration, a significant reduction of adhesion was observed at T4 and T6. Conclusions Alcohol intoxication immediately redistributes monocyte subsets toward the pro-inflammatory phenotype with their subsequent differentiation into the anti-inflammatory phenotype. This is paralleled by a significant functional depression, suggesting an alcohol-induced time-dependent hyporesponsiveness of monocytes to pathogenic triggers.
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Affiliation(s)
- Andrea Janicova
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University, Magdeburg, Germany
| | - Florian Haag
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University, Magdeburg, Germany
| | - Baolin Xu
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University, Magdeburg, Germany
| | - Alejandra P Garza
- Institute of Inflammation and Neurodegeneration, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Ildiko Rita Dunay
- Institute of Inflammation and Neurodegeneration, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | | | - Aleksander J Nowak
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University, Magdeburg, Germany
| | - Paola Cavalli
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University, Magdeburg, Germany
| | - Ingo Marzi
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Frankfurt, Germany
| | - Ramona Sturm
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Frankfurt, Germany
| | - Borna Relja
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University, Magdeburg, Germany.,Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Frankfurt, Germany
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10
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Hyperglycemia and Some Aspects of Leukocyte Activation In Vitro. Bull Exp Biol Med 2021; 170:748-751. [PMID: 33893954 DOI: 10.1007/s10517-021-05147-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Indexed: 10/21/2022]
Abstract
We analyzed functional status of blood leukocytes in diabetes mellitus and after addition of glucose in vitro. To this end, generation of ROS and reactive halogen species by monocytes and neutrophils from patients with diabetes mellitus and healthy donors was assayed using lucigenin- and luminol-dependent chemiluminescence after stimulation with phorbol 12-myristate 13-acetate or opsonized zymosan in vitro. Formation of neutrophil extracellular traps was evaluated in the blood after addition of glucose. In comparison with donors, leukocytes from patients with diabetes mellitus were primed and this effect can be modeled by addition of glucose to the blood in vitro. Addition of glucose to donor blood also triggered the formation of neutrophil extracellular traps.
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11
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Microvesicles and exosomes in metabolic diseases and inflammation. Cytokine Growth Factor Rev 2020; 51:27-39. [PMID: 31917095 DOI: 10.1016/j.cytogfr.2019.12.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/22/2019] [Accepted: 12/30/2019] [Indexed: 12/30/2022]
Abstract
Metabolic diseases are based on a dysregulated crosstalk between various cells such as adipocytes, hepatocytes and immune cells. Generally, hormones and metabolites mediate this crosstalk that becomes alterated in metabolic syndrome including obesity and diabetes. Recently, Extracellular Vesicles (EVs) are emerging as a novel way of cell-to-cell communication and represent an attractive strategy to transfer fundamental informations between the cells through the transport of proteins and nucleic acids. EVs, released in the extracellular space, circulate via the various body fluids and modulate the cellular responses following their interaction with the near and far target cells. Clinical and experimental data support their role as biomarkers and bioeffectors in several diseases includimg also the metabolic syndrome. Despite numerous studies on the role of macrophages in the development of metabolic diseases, to date, there are little informations about the influence of metabolic stress on the EVs produced by macrophages and about the role of the released vesicles in the organism. Here, we review current understanding about the role of EVs in metabolic diseases, mainly in inflammation status burst. This knowledge may play a relevant role in health monitoring, medical diagnosis and personalized medicine.
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12
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Pennig J, Scherrer P, Gissler MC, Anto-Michel N, Hoppe N, Füner L, Härdtner C, Stachon P, Wolf D, Hilgendorf I, Mullick A, Bode C, Zirlik A, Goldberg IJ, Willecke F. Glucose lowering by SGLT2-inhibitor empagliflozin accelerates atherosclerosis regression in hyperglycemic STZ-diabetic mice. Sci Rep 2019; 9:17937. [PMID: 31784656 PMCID: PMC6884628 DOI: 10.1038/s41598-019-54224-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 10/26/2019] [Indexed: 12/12/2022] Open
Abstract
Diabetes worsens atherosclerosis progression and leads to a defect in repair of arteries after cholesterol reduction, a process termed regression. Empagliflozin reduces blood glucose levels via inhibition of the sodium glucose cotransporter 2 (SGLT-2) in the kidney and has been shown to lead to a marked reduction in cardiovascular events in humans. To determine whether glucose lowering by empagliflozin accelerates atherosclerosis regression in a mouse model, male C57BL/6J mice were treated intraperitoneally with LDLR- and SRB1- antisense oligonucleotides and fed a high cholesterol diet for 16 weeks to induce severe hypercholesterolemia and atherosclerosis progression. At week 14 all mice were rendered diabetic by streptozotocin (STZ) injections. At week 16 a baseline group was sacrificed and displayed substantial atherosclerosis of the aortic root. In the remaining mice, plasma cholesterol was lowered by switching to chow diet and treatment with LDLR sense oligonucleotides to induce atherosclerosis regression. These mice then received either empagliflozin or vehicle for three weeks. Atherosclerotic plaques in the empagliflozin treated mice were significantly smaller, showed decreased lipid and CD68+ macrophage content, as well as greater collagen content. Proliferation of plaque resident macrophages and leukocyte adhesion to the vascular wall were significantly decreased in empagliflozin-treated mice. In summary, plasma glucose lowering by empagliflozin improves plaque regression in diabetic mice.
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Affiliation(s)
- Jan Pennig
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Philipp Scherrer
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Mark Colin Gissler
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Nathaly Anto-Michel
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Natalie Hoppe
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Lisa Füner
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Carmen Härdtner
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Peter Stachon
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Dennis Wolf
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Ingo Hilgendorf
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Adam Mullick
- Ionis Pharmaceuticals, Carlsbad, California, USA
| | - Christoph Bode
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany
| | - Andreas Zirlik
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany.,Division of Cardiology, Medical University of Graz, Graz, Austria
| | - Ira J Goldberg
- Department of Medicine, New York University Langone Health, New York, NY, USA
| | - Florian Willecke
- University Heart Center Freiburg-Bad Krozingen, Cardiology and Angiology I, University of Freiburg, Freiburg, Germany. .,Klinik für Allgemeine und Interventionelle Kardiologie/Angiologie, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Bochum, Germany.
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The Role of Butyrate on Monocyte Migration and Inflammation Response in Patient with Type 2 Diabetes Mellitus. Biomedicines 2019; 7:biomedicines7040074. [PMID: 31554278 PMCID: PMC6966637 DOI: 10.3390/biomedicines7040074] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 09/09/2019] [Accepted: 09/09/2019] [Indexed: 12/14/2022] Open
Abstract
Type 2 Diabetes Mellitus (T2DM) is a very serious global problem. In Indonesia, this disease attacks at the most productive age; consequently, it can reduce economic status and life expectancy. The pathogenesis of T2DM is very closely related to inflammation and macrophage accumulation. However, no anti-inflammatory agent has been proven to play a role in the management of T2DM. Butyrate is a short chain fatty acid produced from resistant starch fermentation in the intestinal lumen. It is able to bind to GPR41 and GPR43 receptors on monocytes, so that it can change the pattern of cytokine expression, activation, migration and cell differentiation. Hence, it is interesting to examine the anti-inflammation effect of butyrate and the effect on monocyte migration. A total of 37 subjects were examined in this study. They were divided into two groups, with and without butyrate treatment. We analyzed two pro-inflammatory cytokines (Tumor Necrosis Factor TNF-α and Interleukin IL-6) and one anti-inflammatory cytokine, IL 10. Monocytes were isolated in type 1 collagen gel for migration testing using the µ-slide chemotaxis IBIDI. Image analysis used ImageJ and Chemotaxis tool software. There was a significant difference in the TNFα/IL 10 ratio between healthy groups and T2DM. Butyrate also appears to suppress TNFα cytokine production and increase IL10 production. It also decreases the accumulation distance of monocyte migration in T2DM.
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Ayala TS, Tessaro FHG, Jannuzzi GP, Bella LM, Ferreira KS, Martins JO. High Glucose Environments Interfere with Bone Marrow-Derived Macrophage Inflammatory Mediator Release, the TLR4 Pathway and Glucose Metabolism. Sci Rep 2019; 9:11447. [PMID: 31391499 PMCID: PMC6686006 DOI: 10.1038/s41598-019-47836-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 07/25/2019] [Indexed: 12/22/2022] Open
Abstract
Macrophages may be a crucial aspect of diabetic complications associated with the inflammatory response. In this study, we examined how hyperglycaemia, a common aspect of diabetes, modulates bone marrow-derived macrophages (BMDMs) under an inflammatory stimulus. To perform this study, BMDMs from non-diabetic and diabetic (60 mg/kg alloxan, i.v.) male C57BL/6 mice (CEUA/FCF/USP-488) were cultured under normal (5.5 mM) and high glucose (HG, 25 or 40 mM) conditions and stimulated or not stimulated with lipopolysaccharide (LPS, 100 ng/mL). Compared to the BMDMs from the normoglycaemic mice, the LPS-stimulated BMDMs from the diabetic mice presented reduced TLR4 expression on the cell surface, lower phagocytic capacity, and reduced secretion of NO and lactate but greater oxygen consumption and greater phosphorylation of p46 SAPK/JNK, p42 ERK MAPK, pAKT and pPKC-δ. When the BMDMs from the non-diabetic mice were cultured under high-glucose conditions and stimulated with LPS, TLR4 expression was reduced on the cell surface and NO and H2O2 levels were reduced. In contrast, the diabetic BMDMs cultured under high glucose conditions presented increased levels of lactate and reduced phosphorylation of AKT, PKC-δ and p46 SAPK/JNK but enhanced phosphorylation of the p46 subunit of SAPK/JNK after LPS stimulation. High glucose levels appear to modify macrophage behaviour, affecting different aspects of diabetic and healthy BMDMs under the same LPS stimulus. Thus, hyperglycaemia leaves a glucose legacy, altering the basal steady state of macrophages.
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Affiliation(s)
- Thais Soprani Ayala
- Laboratory of Immunoendocrinology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences of University Sao Paulo (FCF/USP), São Paulo, Brazil
| | - Fernando Henrique Galvão Tessaro
- Laboratory of Immunoendocrinology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences of University Sao Paulo (FCF/USP), São Paulo, Brazil
| | - Grasielle Pereira Jannuzzi
- Laboratory of Cellular Immunology and Biochemistry of Fungus and Protozoa, Department of Pharmaceutical Sciences Analysis, Federal University of São Paulo, São Paulo, Brazil
| | - Leonardo Mendes Bella
- Laboratory of Immunoendocrinology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences of University Sao Paulo (FCF/USP), São Paulo, Brazil
| | - Karen Spadari Ferreira
- Laboratory of Cellular Immunology and Biochemistry of Fungus and Protozoa, Department of Pharmaceutical Sciences Analysis, Federal University of São Paulo, São Paulo, Brazil
| | - Joilson O Martins
- Laboratory of Immunoendocrinology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences of University Sao Paulo (FCF/USP), São Paulo, Brazil.
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15
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Silva AR, Gonçalves-de-Albuquerque CF, Pérez AR, Carvalho VDF. Immune-endocrine interactions related to a high risk of infections in chronic metabolic diseases: The role of PPAR gamma. Eur J Pharmacol 2019; 854:272-281. [PMID: 30974105 DOI: 10.1016/j.ejphar.2019.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 03/11/2019] [Accepted: 04/02/2019] [Indexed: 02/06/2023]
Abstract
Diverse disturbances in immune-endocrine circuitries are involved in the development and aggravation of several chronic metabolic diseases (CMDs), including obesity, diabetes, and metabolic syndrome. The chronic inflammatory syndrome observed in CMDs culminates in dysregulated immune responses with low microbial killing efficiency, by means low host innate immune response, and loss of ability to eliminate the pathogens, which results in a high prevalence of infectious diseases, including pneumonia, tuberculosis, and sepsis. Herein, we review evidence pointing out PPARγ as a putative player in immune-endocrine disturbances related to increased risk of infections in CMDs. Cumulated evidence indicates that PPARγ activation modulates host cells to control inflammation during CMDs because of PPARγ agonists have anti-inflammatory and pro-resolutive properties, increasing host ability to eliminate pathogen, modulating hormone production, and restoring glucose and lipid homeostasis. As such, we propose PPARγ as a putative therapeutic adjuvant for patients with CMDs to favor a better infection control.
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Affiliation(s)
- Adriana Ribeiro Silva
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Avenida Brasil, 4365, Rio de Janeiro, RJ, Brazil.
| | - Cassiano Felippe Gonçalves-de-Albuquerque
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Avenida Brasil, 4365, Rio de Janeiro, RJ, Brazil; Laboratório de Imunofarmacologia, Instituto Biomédico, Universidade Federal do Estado do Rio de Janeiro, Unirio, Brazil.
| | - Ana Rosa Pérez
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET UNR), 2000, Rosario, Argentina.
| | - Vinicius de Frias Carvalho
- Laboratório de Inflamação, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Avenida Brasil, 4365, Rio de Janeiro, RJ, Brazil.
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16
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Oh S, Son M, Lee HS, Kim HS, Jeon YJ, Byun K. Protective Effect of Pyrogallol-Phloroglucinol-6,6-Bieckol from Ecklonia cava on Monocyte-Associated Vascular Dysfunction. Mar Drugs 2018; 16:E441. [PMID: 30423960 PMCID: PMC6266154 DOI: 10.3390/md16110441] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 10/27/2018] [Accepted: 11/06/2018] [Indexed: 11/16/2022] Open
Abstract
Ecklonia cava (E. cava) can alleviate vascular dysfunction in diseases associated with poor circulation. E. cava contains various polyphenols with different functions, but few studies have compared the effects of these polyphenols. Here, we comparatively investigated four major compounds present in an ethanoic extract of E. cava. These four major compounds were isolated and their effects were examined on monocyte-associated vascular inflammation and dysfunctions. Pyrogallol-phloroglucinol-6,6-bieckol (PPB) significantly inhibited monocyte migration in vitro by reducing levels of inflammatory macrophage differentiation and of its related molecular factors. In addition, PPB protected against monocyte-associated endothelial cell death by increasing the phosphorylations of PI3K-AKT and AMPK, decreasing caspase levels, and reducing monocyte-associated vascular smooth muscle cell proliferation and migration by decreasing the phosphorylations of ERK and AKT. The results of this study show that four compounds were effective for reduction of monocyte-associated vascular inflammation and dysfunctions, but PPB might be more useful for the treatment of vascular dysfunction in diseases associated with poor circulation.
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Affiliation(s)
- Seyeon Oh
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea.
| | - Myeongjoo Son
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea.
- Department of Anatomy & Cell Biology, Graduate School of Medicine, Gachon University, Incheon 21936, Korea.
| | - Hye Sun Lee
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea.
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Korea.
| | - Hyun-Soo Kim
- Department of Marine Life Science, Jeju National University, Jeju 63243, Korea.
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju 63243, Korea.
| | - Kyunghee Byun
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea.
- Department of Anatomy & Cell Biology, Graduate School of Medicine, Gachon University, Incheon 21936, Korea.
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Korea.
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17
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Vural G, Gümüsyayla Ş. Monocyte-to-high density lipoprotein ratio is associated with a decreased compound muscle action potential amplitude in patients with diabetic axonal polyneuropathy. Medicine (Baltimore) 2018; 97:e12857. [PMID: 30334993 PMCID: PMC6212287 DOI: 10.1097/md.0000000000012857] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The monocyte-to-high density lipoprotein ratio (MHR) has recently been implemented as an indicator of inflammation and oxidative stress. The present study characterized MHR in patients with diabetic polyneuropathy (DPN), in which oxidative stress and microvascular damage play a role in pathogenesis, relative to patients with non-DPN, diabetic patients without polyneuropathy, and healthy individuals. We further aimed to evaluate the association between MHR and the decreased compound muscle action potential (CMAP) amplitude of patients with diabetic axonal polyneuropathy.We enrolled 90 patients with DPN, 75 patients with nonDPN, 92 diabetic patients without polyneuropathy, and 67 healthy individuals; The monocyte, high-density lipoprotein cholesterol (HDL-C) values were obtained for all participants and MHR was calculated for each individual. Intergroup comparison was performed. The relationship between MHR and the posterior tibial nerve CMAP amplitudes was examined.Statistically significant negative correlation was observed between MHR and the posterior tibial nerve CMAP amplitudes of patients with DPN. The MHR values of the patients with DPN were significantly higher than those of the patients with non-DPN, diabetic patients without polyneuropathy and the control group.This study demonstrated that diabetic patients with higher MHR values may be more likely to develop polyneuropathy.
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18
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Chana M, Lewis JB, Davis R, Elam Y, Hobbs D, Lockwood PE, Wataha JC, Messer RL. Biological effects of Ni(II) on monocytes and macrophages in normal and hyperglycemic environments. J Biomed Mater Res A 2018; 106:2433-2439. [DOI: 10.1002/jbm.a.36437] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 03/15/2018] [Accepted: 04/05/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Monica Chana
- Department of Oral Health and Diagnostic Sciences, Department of General Dentistry, Dental College of Georgia; Augusta University; Augusta Georgia
| | - Jill B. Lewis
- College of Dental Medicine and Graduate College of Biomedical Sciences; Western University of Health Sciences; Pomona California
| | - Ryan Davis
- Dental College of Georgia; Augusta University; Augusta Georgia
| | - Yolanda Elam
- College of Nursing; Augusta University; Augusta Georgia United States
| | - David Hobbs
- Savannah River National Laboratory; Aiken South Carolina
| | | | - John C. Wataha
- Department of Restorative Dentistry, School of Dentistry; University of Washington; Seattle Washington
| | - Regina L. Messer
- Department of Oral Biology, Dental College of Georgia; Augusta University; Augusta Georgia
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19
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Fuller KNZ, Summers CM, Valentine RJ. Effect of a single bout of aerobic exercise on high-fat meal-induced inflammation. Metabolism 2017; 71:144-152. [PMID: 28521867 DOI: 10.1016/j.metabol.2017.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 02/27/2017] [Accepted: 03/01/2017] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND AIMS Chronic low-grade inflammation is involved in the development of metabolic disorders including atherosclerosis, type 2 diabetes (T2D) and metabolic syndrome. Aerobic exercise has been shown to be anti-inflammatory and attenuate postprandial blood lipids, however, the effect of exercise on postprandial inflammation remains unclear. The aim of this study was to determine the protective effect of a single bout of aerobic exercise against postprandial lipemia and peripheral blood mononuclear cell (PBMC) inflammation and to evaluate associations with changes in the energy-sensing enzyme, AMP-activated protein kinase (AMPK). MATERIALS AND METHODS Healthy male subjects (n=12, age=23±2, %Fat=19±2) reported to the laboratory following an overnight fast (12-14h) on two separate occasions for consumption of a high-fat meal (HFM). Participants completed an acute bout of aerobic exercise the afternoon prior to one of the HFM visits. RESULTS AND CONCLUSION Results indicate that the single bout of moderate aerobic exercise increased AMPK signaling in PBMCs, as shown by increased phosphorylated acetyl-CoA carboxylase (p-ACC). This may be due to decreases in the AMPK inhibitory kinases PKD and GSK3β. Additionally, prior moderate intensity exercise decreased postprandial lipemia (PPL) and some mediators of the inflammatory pathway, such as p-NF-κB. These findings that acute aerobic exercise improves AMPK and NF-κB signaling in human PBMCs contribute support to the anti-inflammatory roles of exercise.
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Affiliation(s)
- Kelly N Z Fuller
- The Interdepartmental Graduate Program in Nutritional Sciences, Iowa State University, Ames, IA; Department of Kinesiology, Iowa State University, Ames, IA
| | - Corey M Summers
- Department of Kinesiology, Iowa State University, Ames, IA; The Immunobiology Interdepartmental Graduate Program, Iowa State University, Ames, IA
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20
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Girardi E, Sañé Schepisi M, Goletti D, Bates M, Mwaba P, Yeboah-Manu D, Ntoumi F, Palmieri F, Maeurer M, Zumla A, Ippolito G. The global dynamics of diabetes and tuberculosis: the impact of migration and policy implications. Int J Infect Dis 2017; 56:45-53. [PMID: 28153793 DOI: 10.1016/j.ijid.2017.01.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 01/17/2017] [Accepted: 01/19/2017] [Indexed: 12/25/2022] Open
Abstract
The convergence between tuberculosis (TB) and diabetes mellitus (DM) will represent a major public health challenge in the near future. DM increases the risk of developing TB by two to three times and also increases the risk of TB treatment failure, relapse, and death. The global prevalence of DM is predicted to rise significantly in the next two decades, particularly in some of the low- and middle-income countries with the highest TB burden. Migration may add further complexity to the effort to control the impact on TB of the growing DM pandemic. Migration may increase the risk of DM, although the magnitude of this association varies according to country of origin and ethnic group, due to genetic factors and lifestyle differences. Migrants with TB may have an increased prevalence of DM compared to the native population, and the risk of TB among persons with DM may be higher in migrants than in autochthonous populations. Screening for DM among migrants, screening migrants with DM for active and latent TB, and improving access to DM care, could contribute to mitigate the effects of DM on TB.
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Affiliation(s)
- Enrico Girardi
- National Institute for Infectious Diseases "Lazzaro Spallanzani" IRCCS, Via Portuense 292, 00149 Rome, Italy
| | - Monica Sañé Schepisi
- National Institute for Infectious Diseases "Lazzaro Spallanzani" IRCCS, Via Portuense 292, 00149 Rome, Italy
| | - Delia Goletti
- National Institute for Infectious Diseases "Lazzaro Spallanzani" IRCCS, Via Portuense 292, 00149 Rome, Italy
| | - Matthew Bates
- Division of Infection and Immunity, University College London; and National Institute of Health Research Biomedical Research Centre at UCL Hospitals, London, UK; UNZA-UCLMS Research and Training Program, University Teaching Hospital, Lusaka, Zambia
| | - Peter Mwaba
- UNZA-UCLMS Research and Training Program, University Teaching Hospital, Lusaka, Zambia
| | - Dorothy Yeboah-Manu
- Department of Bacteriology, Noguchi Memorial Institute for Medical Research, Accra, Ghana
| | - Francine Ntoumi
- Fondation Congolaise pour la Recherche Médicale, Faculté des Sciences de la Santé, Marien Ngouabi University; and Faculté des Sciences et Techniques, Marien Ngouabi University, Brazzaville, Congo; Institute for Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Fabrizio Palmieri
- National Institute for Infectious Diseases "Lazzaro Spallanzani" IRCCS, Via Portuense 292, 00149 Rome, Italy
| | - Markus Maeurer
- Therapeutic Immunology (TIM) Division, Department of Laboratory Medicine, Karolinska University Hospital Huddinge; and Centre for Allogeneic Stem Cell Transplantation, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Alimuddin Zumla
- Division of Infection and Immunity, University College London; and National Institute of Health Research Biomedical Research Centre at UCL Hospitals, London, UK; UNZA-UCLMS Research and Training Program, University Teaching Hospital, Lusaka, Zambia; International Public Health Crisis Group (IPHCG), London, United Kingdom - Rome, Italy
| | - Giuseppe Ippolito
- National Institute for Infectious Diseases "Lazzaro Spallanzani" IRCCS, Via Portuense 292, 00149 Rome, Italy; International Public Health Crisis Group (IPHCG), London, United Kingdom - Rome, Italy.
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21
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Hepatic immunophenotyping for streptozotocin-induced hyperglycemia in mice. Sci Rep 2016; 6:30656. [PMID: 27464894 PMCID: PMC4964583 DOI: 10.1038/srep30656] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 07/07/2016] [Indexed: 12/30/2022] Open
Abstract
Emerging evidence revealed that diabetes induces abnormal immune responses that result in serious complications in organs. However, the effect of hyperglycemia on hepatic immunity remains obscure. We evaluated the population and function of hepatic immune cells in streptozotocin (STZ)-induced hyperglycemic mice. CC chemokine receptor 2 (CCR2)-knockout mice and mice with a depletion of regulatory T cells (DEREG) were used to investigate the migration and role of regulatory T cells (Tregs) in hyperglycemic mice. The inflammatory cytokines and hepatic transaminase levels were significantly increased in the hyperglycemic mice. The population and number of infiltrating monocytes, granulocytes, and Tregs were enhanced in the livers of the hyperglycemic mice. Hepatic monocytes other than macrophages showed the increased expression of inflammatory cytokines and chemokines in the hyperglycemic mice. The CCR2 knockout and DEREG chimeric mice exhibited increased populations of activated T cells and neutrophils compared to the WT chimeric mice, which promoted hepatic inflammation in the hyperglycemic mice. The migration of CCR2 knockout Tregs into the liver was significantly reduced compared to the WT Tregs. We demonstrated that hyperglycemia contributes to increase in infiltrating monocytes and Tregs, which are associated with hepatic immune dysfunction in mice. CCR2-mediated migration of Tregs regulates hyperglycemia-induced hepatic inflammation.
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22
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The Protective Role of Autophagy in Matrix Metalloproteinase-Mediated Cell Transmigration and Cell Death in High-Glucose-Treated Endothelial Cells. Inflammation 2016; 39:830-8. [DOI: 10.1007/s10753-016-0313-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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23
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Manna P, Jain SK. Phosphatidylinositol-3,4,5-triphosphate and cellular signaling: implications for obesity and diabetes. Cell Physiol Biochem 2015; 35:1253-75. [PMID: 25721445 DOI: 10.1159/000373949] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/07/2015] [Indexed: 12/26/2022] Open
Abstract
Phosphatidylinositol-3,4,5-triphosphate (PtdIns(3,4,5)P₃) is one of the most important phosphoinositides and is capable of activating a wide range of proteins through its interaction with their specific binding domains. Localization and activation of these effector proteins regulate a number of cellular functions, including cell survival, proliferation, cytoskeletal rearrangement, intracellular vesicle trafficking, and cell metabolism. Phosphoinositides have been investigated as an important agonist-dependent second messenger in the regulation of diverse physiological events depending upon the phosphorylation status of their inositol group. Dysregulation in formation as well as metabolism of phosphoinositides is associated with various pathophysiological disorders such as inflammation, allergy, cardiovascular diseases, cancer, and metabolic diseases. Recent studies have demonstrated that the impaired metabolism of PtdIns(3,4,5)P₃ is a prime mediator of insulin resistance associated with various metabolic diseases including obesity and diabetes. This review examines the current status of the role of PtdIns(3,4,5)P₃ signaling in the regulation of various cellular functions and the implications of dysregulated PtdIns(3,4,5)P₃ signaling in obesity, diabetes, and their associated complications.
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Affiliation(s)
- Prasenjit Manna
- Department of Pediatrics, Louisiana State University Health Sciences Center, Shreveport, LA, USA
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24
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Ruan Q, Zhao C, Ye Z, Ruan J, Xie Q, Xie W. Effect and possible mechanism of monocyte-derived VEGF on monocyte-endothelial cellular adhesion after electrical burns. Burns 2014; 41:825-32. [PMID: 25466960 DOI: 10.1016/j.burns.2014.10.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 10/15/2014] [Accepted: 10/30/2014] [Indexed: 10/24/2022]
Abstract
OBJECTIVE One of the major obstacles in the treatment of severe electrical burns is properly handling the resulting uncontrolled inflammation. Such inflammation often causes secondary injury and necrosis, thus complicating patient outcomes. Vascular endothelial grow factor (VEGF) has emerged as an important mediator for the recruitment of monocytes to the site inflammation. This study was designed to explore the effects and possible mechanism of VEGF on monocyte-endothelial cellular adhesion. To do so, we used a cultured human monocytic cell line (THP-1) that was stimulated with serum derived from rats that had received electrical burns. METHODS Serum was obtained from rats that had received electrical burns. Both the VEGF and soluble flt-1 (sflt-1) concentrations of the serum were determined by double-antibody sandwich ELISA. The concentrations of VEGF, sflt-1, and TNF-α obtained from the cell-free cultured supernatant of THP-1 cells that had been exposed to the serum were then determined by double-antibody sandwich ELISA. Serum-stimulated THP-1 cells were added to wells with a monolayer of endothelial cells to detect the level of monocyte-endothelial cells adhesion. Finally, the state of phosphorylation of AKT was determined by Western blotting. RESULTS Both in vivo and in vitro studies showed that compared to controls, the levels of VEGF were significantly increased after electrical burns. This increased was accompanied by a reduction of sflt-1 levels. Furthermore, the serum of rats that had received electrical burns was able to both activate monocytes to secrete TNF-α and enhance monocyte-endothelial cell adhesion. Treatment with the serum also resulted in an up-regulation of the phosphorylation of AKT, but had no effect on the total levels of AKT. Phosphatidylinositide 3-kinases (PI3K) inhibition decreased the number of THP-1 cells that were adhered to endothelial cells. Finally, sequestering VEGF with sflt-1 was able to reduce the effect on monocyte-endothelial cells adhesion by blocking the PI3K signaling pathway. CONCLUSION Our results indicate that VEGF is implicated in the pathogenesis of inflammation after electrical burns. Inhibition of VEGF activity could attenuate monocyte-endothelial cells adhesion by suppressing the state of phosphorylation of AKT, which is downstream of the PI3K signaling pathway.
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Affiliation(s)
- Qiongfang Ruan
- Institute of Burns, Wuhan City Hospital No. 3 & Tongren Hospital of Wuhan University, Wuhan 430060, PR China
| | - Chaoli Zhao
- Institute of Burns, Wuhan City Hospital No. 3 & Tongren Hospital of Wuhan University, Wuhan 430060, PR China
| | - Ziqing Ye
- Institute of Burns, Wuhan City Hospital No. 3 & Tongren Hospital of Wuhan University, Wuhan 430060, PR China
| | - Jingjing Ruan
- Institute of Burns, Wuhan City Hospital No. 3 & Tongren Hospital of Wuhan University, Wuhan 430060, PR China
| | - Qionghui Xie
- Institute of Burns, Wuhan City Hospital No. 3 & Tongren Hospital of Wuhan University, Wuhan 430060, PR China
| | - Weiguo Xie
- Institute of Burns, Wuhan City Hospital No. 3 & Tongren Hospital of Wuhan University, Wuhan 430060, PR China.
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25
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Manna P, Jain SK. Effect of PIP3 on adhesion molecules and adhesion of THP-1 monocytes to HUVEC treated with high glucose. Cell Physiol Biochem 2014; 33:1197-204. [PMID: 24752192 DOI: 10.1159/000358688] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2014] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Phosphatidylinositol-3,4,5-triphosphate (PIP3), a well-known lipid second messenger, plays a key role in insulin signaling and glucose homeostasis. Using human umbilical vein endothelial cells (HUVEC) and THP-1 monocytes, we tested the hypothesis that PIP3 can downregulate adhesion molecules and monocyte adhesion to endothelial cells. METHODS HUVEC and monocytes were exposed to high glucose (HG, 25 mM, 20 h) with or without PIP3 (0-20 nM), or PIT-1 (25 µM), an inhibitor of PIP3. RESULTS Both HG and PIT-1 caused a decrease in cellular PIP3 in monocytes and HUVEC compared to controls. Treatment with PIT-1 and HG also increased the ICAM-1 (intercellular adhesion molecule 1) total protein expression as well as its surface expression in HUVEC, CD11a (a subunit of lymphocyte function-associated antigen 1, LFA-1) total protein expression as well as its surface expression in monocytes, and adhesion of monocytes to HUVEC. Exogenous PIP3 supplementation restored the intracellular PIP3 concentrations, downregulated the expression of adhesion molecules, and reduced the adhesion of monocytes to HUVEC treated with HG. CONCLUSION This study reports that a decrease in cellular PIP3 is associated with increased expression of adhesion molecules and monocyte-endothelial cell adhesion, and may play a role in the endothelial dysfunction associated with diabetes.
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Affiliation(s)
- Prasenjit Manna
- Department of Pediatrics, Louisiana State University Health Sciences Center, Shreveport, USA
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Xiu F, Stanojcic M, Diao L, Jeschke MG. Stress hyperglycemia, insulin treatment, and innate immune cells. Int J Endocrinol 2014; 2014:486403. [PMID: 24899891 PMCID: PMC4034653 DOI: 10.1155/2014/486403] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 04/06/2014] [Accepted: 04/08/2014] [Indexed: 01/04/2023] Open
Abstract
Hyperglycemia (HG) and insulin resistance are the hallmarks of a profoundly altered metabolism in critical illness resulting from the release of cortisol, catecholamines, and cytokines, as well as glucagon and growth hormone. Recent studies have proposed a fundamental role of the immune system towards the development of insulin resistance in traumatic patients. A comprehensive review of published literatures on the effects of hyperglycemia and insulin on innate immunity in critical illness was conducted. This review explored the interaction between the innate immune system and trauma-induced hypermetabolism, while providing greater insight into unraveling the relationship between innate immune cells and hyperglycemia. Critical illness substantially disturbs glucose metabolism resulting in a state of hyperglycemia. Alterations in glucose and insulin regulation affect the immune function of cellular components comprising the innate immunity system. Innate immune system dysfunction via hyperglycemia is associated with a higher morbidity and mortality in critical illness. Along with others, we hypothesize that reduction in morbidity and mortality observed in patients receiving insulin treatment is partially due to its effect on the attenuation of the immune response. However, there still remains substantial controversy regarding moderate versus intensive insulin treatment. Future studies need to determine the integrated effects of HG and insulin on the regulation of innate immunity in order to provide more effective insulin treatment regimen for these patients.
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Affiliation(s)
- Fangming Xiu
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Room D704, Toronto, ON, Canada
| | - Mile Stanojcic
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Room D704, Toronto, ON, Canada
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada M4N 3M5
| | - Li Diao
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Room D704, Toronto, ON, Canada
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada M4N 3M5
| | - Marc G. Jeschke
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Room D704, Toronto, ON, Canada
- Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada M4N 3M5
- Department of Surgery, Division of Plastic Surgery, Department of Immunology, University of Toronto, Toronto, ON, Canada
- *Marc G. Jeschke:
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Restrepo BI, Schlesinger LS. Host-pathogen interactions in tuberculosis patients with type 2 diabetes mellitus. Tuberculosis (Edinb) 2013; 93 Suppl:S10-4. [PMID: 24388642 PMCID: PMC4019931 DOI: 10.1016/s1472-9792(13)70004-0] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Tuberculosis (TB) is known to be fueled by HIV as well as social and economic factors. With progression of the diabetes mellitus (DM) pandemic in countries where TB is also endemic, focus is increasing on the potential links between DM and TB. Despite the magnitude of the DM-TB association worldwide, it is striking how little we know about the underlying biology that promotes this association which is a major concern to public health. In this review we summarize current findings regarding the alterations in the innate and adaptive immune responses of DM patients to Mycobacterium tuberculosis (Mtb). Current findings suggest underperforming innate immunity followed by a hyper-reactive cellular response to Mtb, but the contribution of these altered responses to TB susceptibility or to the more adverse clinical outcomes of TB patients with DM remains unclear. Elucidating the basic mechanisms underlying the higher susceptibility of DM patients to TB should lead to a strategy for stratification of the millions of DM patients worldwide into those with the highest TB risk for targeted TB prevention.
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Affiliation(s)
- Blanca I Restrepo
- UTHealth Houston, School of Public Health at Brownsville, 80 Fort Brown, Brownsville, Texas 78520, USA.
| | - Larry S Schlesinger
- Center for Microbial Interface Biology and Department of Microbial Infection and Immunity, 460W 12th Ave, The Ohio State University, Columbus, Ohio 43210, USA
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Koh GCKW, Peacock SJ, van der Poll T, Wiersinga WJ. The impact of diabetes on the pathogenesis of sepsis. Eur J Clin Microbiol Infect Dis 2012; 31:379-88. [PMID: 21805196 PMCID: PMC3303037 DOI: 10.1007/s10096-011-1337-4] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Accepted: 06/21/2011] [Indexed: 02/06/2023]
Abstract
Diabetes is associated with an increased susceptibility to infection and sepsis. Conflicting data exist on whether the mortality of patients with sepsis is influenced by the presence of diabetes, fuelling the ongoing debate on the benefit of tight glucose regulation in patients with sepsis. The main reason for which diabetes predisposes to infection appears to be abnormalities of the host response, particularly in neutrophil chemotaxis, adhesion and intracellular killing, defects that have been attributed to the effect of hyperglycaemia. There is also evidence for defects in humoral immunity, and this may play a larger role than previously recognised. We review the literature on the immune response in diabetes and its potential contribution to the pathogenesis of sepsis. In addition, the effect of diabetes treatment on the immune response is discussed, with specific reference to insulin, metformin, sulphonylureas and thiazolidinediones.
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Affiliation(s)
- G C K W Koh
- The Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK.
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