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Summer M, Ali S, Fiaz U, Hussain T, Khan RRM, Fiaz H. Revealing the molecular mechanisms in wound healing and the effects of different physiological factors including diabetes, age, and stress. J Mol Histol 2024; 55:637-654. [PMID: 39120834 DOI: 10.1007/s10735-024-10223-3] [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: 02/29/2024] [Accepted: 07/05/2024] [Indexed: 08/10/2024]
Abstract
Wounds are the common fates in various microbial infections and physical damages including accidents, surgery, and burns. In response, a healthy body with a potent immune system heals that particular site within optimal time by following the coagulation, inflammation, proliferation, and remodeling phenomenon. However, certain malfunctions in the body due to various diseases particularly diabetes and other physiological factors like age, stress, etc., prolong the process of wound healing through various mechanisms including the Akt, Polyol, and Hexosamine pathways. The current review thoroughly explains the wound types, normal wound healing mechanisms, and the immune system's role. Moreover, the mechanistic role of diabetes is also elaborated comprehensively.
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Affiliation(s)
- Muhammad Summer
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, 54000, Pakistan.
| | - Shaukat Ali
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, 54000, Pakistan.
| | - Umaima Fiaz
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, 54000, Pakistan
| | - Tauqeer Hussain
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, 54000, Pakistan
| | | | - Hashim Fiaz
- Ammer-ud-Din Medical College, Lahore, 54000, Pakistan
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Chuang HH, Huang CG, Hsu JF, Chuang LP, Huang YS, Li HY, Lee LA. Weight Status, Autonomic Function, and Systemic Inflammation in Children with Obstructive Sleep Apnea. Int J Mol Sci 2024; 25:8951. [PMID: 39201638 PMCID: PMC11354383 DOI: 10.3390/ijms25168951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 08/10/2024] [Accepted: 08/13/2024] [Indexed: 09/02/2024] Open
Abstract
Children with obstructive sleep apnea (OSA) frequently experience chronic low-grade systemic inflammation, with the inflammasome playing a central role in OSA. This cross-sectional study evaluated the relationship between weight status, autonomic function, and systemic inflammation in a cohort of 55 children with OSA, predominantly boys (78%) with an average age of 7.4 ± 2.2 years and an apnea-hypopnea index of 14.12 ± 17.05 events/hour. Measurements were taken of body mass index (BMI), sleep heart-rate variability, morning circulatory levels of interleukin-1β, interleukin-1 receptor antagonist, and interleukin-6, and tumor necrosis factor-α, anthropometry, and polysomnography. Multiple linear regression modeling showed that an apnea-hypopnea index was significantly associated with BMI, the standard deviation of successive differences between normal-to-normal intervals during N3 sleep, and the proportion of normal-to-normal interval pairs differing by more than 50 ms during rapid-eye-movement sleep. A moderated mediation model revealed that interleukin-1 receptor antagonist levels mediated the association between BMI and interleukin-6 levels, with sympathovagal balance during N3 sleep and minimum blood oxygen saturation further moderating these relationships. This study highlights the complex relationships between BMI, polysomnographic parameters, sleep heart-rate-variability metrics, and inflammatory markers in children with OSA, underlining the importance of weight management in this context.
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Affiliation(s)
- Hai-Hua Chuang
- Department of Family Medicine, Metabolism and Obesity Institute, Sleep Center, Chang Gung Memorial Hospital, Taipei and Linkou Branches, Taoyuan 33305, Taiwan;
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-F.H.); (L.-P.C.); (Y.-S.H.); (H.-Y.L.)
- School of Medicine, College of Life Science and Medicine, National Tsing Hua University, Hsinchu 300044, Taiwan
- Department of Community Medicine, Cathay General Hospital, Taipei 106, Taiwan
| | - Chung-Guei Huang
- Department of Laboratory Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 33305, Taiwan;
- Department of Medical Biotechnology and Laboratory Science, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan 33302, Taiwan
| | - Jen-Fu Hsu
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-F.H.); (L.-P.C.); (Y.-S.H.); (H.-Y.L.)
- School of Medicine, College of Life Science and Medicine, National Tsing Hua University, Hsinchu 300044, Taiwan
- Department of Pediatrics, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 33305, Taiwan
| | - Li-Pang Chuang
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-F.H.); (L.-P.C.); (Y.-S.H.); (H.-Y.L.)
- Department of Pulmonary and Critical Care Medicine, Sleep Center, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 33305, Taiwan
| | - Yu-Shu Huang
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-F.H.); (L.-P.C.); (Y.-S.H.); (H.-Y.L.)
- Department of Child Psychiatry, Sleep Center, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 33305, Taiwan
| | - Hsueh-Yu Li
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-F.H.); (L.-P.C.); (Y.-S.H.); (H.-Y.L.)
- Department of Otorhinolaryngology—Head and Neck Surgery, Metabolism and Obesity Institute, Sleep Center, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 33305, Taiwan
| | - Li-Ang Lee
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (J.-F.H.); (L.-P.C.); (Y.-S.H.); (H.-Y.L.)
- School of Medicine, College of Life Science and Medicine, National Tsing Hua University, Hsinchu 300044, Taiwan
- Department of Otorhinolaryngology—Head and Neck Surgery, Metabolism and Obesity Institute, Sleep Center, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 33305, Taiwan
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Bahman F, Al-Roub A, Akhter N, Al Madhoun A, Wilson A, Almansour N, Al-Rashed F, Sindhu S, Al-Mulla F, Ahmad R. TNF-α/Stearate Induced H3K9/18 Histone Acetylation Amplifies IL-6 Expression in 3T3-L1 Mouse Adipocytes. Int J Mol Sci 2024; 25:6776. [PMID: 38928498 PMCID: PMC11203872 DOI: 10.3390/ijms25126776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/11/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024] Open
Abstract
Extensive evidence supports the connection between obesity-induced inflammation and the heightened expression of IL-6 adipose tissues. However, the mechanism underlying the IL-6 exacerbation in the adipose tissue remains unclear. There is general agreement that TNF-α and stearate concentrations are mildly elevated in adipose tissue in the state of obesity. We hypothesize that TNF-α and stearate co-treatment induce the increased expression of IL-6 in mouse adipocytes. We therefore aimed to determine IL-6 gene expression and protein production by TNF-α/stearate treated adipocytes and investigated the mechanism involved. To test our hypothesis, 3T3-L1 mouse preadipocytes were treated with TNF-α, stearate, or TNF-α/stearate. IL-6 gene expression was assessed by quantitative real-time qPCR. IL-6 protein production secreted in the cell culture media was determined by ELISA. Acetylation of histone was analyzed by Western blotting. Il6 region-associated histone H3 lysine 9/18 acetylation (H3K9/18Ac) was determined by ChIP-qPCR. 3T3-L1 mouse preadipocytes were co-challenged with TNF-α and stearate for 24 h, which led to significantly increased IL-6 gene expression (81 ± 2.1 Fold) compared to controls stimulated with either TNF-α (38 ± 0.5 Fold; p = 0.002) or stearate (56 ± 2.0 Fold; p = 0.013). As expected, co-treatment of adipocytes with TNF-α and stearate significantly increased protein production (338 ± 11 pg/mL) compared to controls stimulated with either TNF-α (28 ± 0.60 pg/mL; p = 0.001) or stearate (53 ± 0.20 pg/mL, p = 0.0015). Inhibition of histone acetyltransferases (HATs) with anacardic acid or curcumin significantly reduced the IL-6 gene expression and protein production by adipocytes. Conversely, TSA-induced acetylation substituted the stimulatory effect of TNF-α or stearate in their synergistic interaction for driving IL-6 gene expression and protein production. Mechanistically, TNF-α/stearate co-stimulation increased the promoter-associated histone H3 lysine 9/18 acetylation (H3K9/18Ac), rendering a transcriptionally permissive state that favored IL-6 expression at the transcriptional and translational levels. Our data represent a TNF-α/stearate cooperativity model driving IL-6 expression in 3T3-L1 cells via the H3K9/18Ac-dependent mechanism, with implications for adipose IL-6 exacerbations in obesity.
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Affiliation(s)
- Fatemah Bahman
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Areej Al-Roub
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Nadeem Akhter
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Ashraf Al Madhoun
- Animal and Imaging Core Facilities, Dasman Diabetes Institute, Dasman 15462, Kuwait;
| | - Ajit Wilson
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Nourah Almansour
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Fatema Al-Rashed
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
| | - Sardar Sindhu
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
- Animal and Imaging Core Facilities, Dasman Diabetes Institute, Dasman 15462, Kuwait;
| | - Fahd Al-Mulla
- Translational Research Department, Dasman Diabetes Institute, Dasman 15462, Kuwait;
| | - Rasheed Ahmad
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (F.B.); (A.A.-R.); (N.A.); (A.W.); (N.A.); (F.A.-R.); (S.S.)
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Quarleri J, Delpino MV. The interplay of aging, adipose tissue, and COVID-19: a potent alliance with implications for health. GeroScience 2024; 46:2915-2932. [PMID: 38191833 PMCID: PMC11009220 DOI: 10.1007/s11357-023-01058-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 12/27/2023] [Indexed: 01/10/2024] Open
Abstract
Obesity has emerged as a significant public health challenge. With the ongoing increase in life expectancy, the prevalence of obesity is steadily growing, particularly among older age demographics. The extension of life expectancy frequently results in additional years of vulnerability to chronic health issues associated with obesity in the elderly.The concept of SARS-CoV-2 directly infecting adipose tissue stems from the fact that both adipocytes and stromal vascular fraction cells express ACE2, the primary receptor facilitating SARS-CoV-2 entry. It is noteworthy that adipose tissue demonstrates ACE2 expression levels similar to those found in the lungs within the same individual. Additionally, ACE2 expression in the adipose tissue of obese individuals surpasses that in non-obese counterparts. Viral attachment to ACE2 has the potential to disturb the equilibrium of renin-angiotensin system homeostasis, leading to an exacerbated inflammatory response.Consequently, adipose tissue has been investigated as a potential site for active SARS-CoV-2 infection, suggesting its plausible role in virus persistence and contribution to both acute and long-term consequences associated with COVID-19.This review is dedicated to presenting current evidence concerning the presence of SARS-CoV-2 in the adipose tissue of elderly individuals infected with the virus. Both obesity and aging are circumstances that contribute to severe health challenges, heightening the risk of disease and mortality. We will particularly focus on examining the mechanisms implicated in the long-term consequences, with the intention of providing insights into potential strategies for mitigating the aftermath of the disease.
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Affiliation(s)
- Jorge Quarleri
- Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Universidad de Buenos Aires, CONICET, Paraguay 2155, Piso 11, C1121ABG, Ciudad Autónoma de Buenos Aires, Argentina.
| | - M Victoria Delpino
- Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Universidad de Buenos Aires, CONICET, Paraguay 2155, Piso 11, C1121ABG, Ciudad Autónoma de Buenos Aires, Argentina.
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Zimowska M, Rolbiecka M, Antoniak-Pietrynczak K, Jaskulak M, Zorena K. Dynamics of Serum Inflammatory Markers and Adipokines in Patients: Implications for Monitoring Abnormal Body Weight: Preliminary Research. Metabolites 2024; 14:260. [PMID: 38786737 PMCID: PMC11122760 DOI: 10.3390/metabo14050260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/24/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
This study aimed to investigate the influence of abnormal body weight on inflammatory markers and adipokine levels across varied body mass index (BMI) categories. The cohort included 46 participants categorized into normal BMI (group I; n = 19), overweight (group II; n = 14), and obesity (group III; n = 13). Inflammatory markers (hsCRP and IL-6) and adipokines (Adiponectin, Leptin, Nesfatin-1, and Zinc-α2-glycoprotein) were assessed to discern effective indicators of inflammation in individuals with abnormal body weight. Additionally, the full lipid profile was also assessed (total cholesterol, triglycerides, LDL-C, HDL-C). The results indicated significant biochemical changes, particularly in IL-6 and Leptin levels, in participants with a BMI over 25. The levels of ZAG protein were negatively correlated with the HDL-C and LDC-L levels with statistical significance (Pearson: -0.57, p = 0.001, and Pearson: -0.41, p = 0.029, for HDL-C and LDL-C, respectively), suggesting that the level of ZAG is also inversely proportional to the amount of cholesterol. Statistical analyses revealed decreased Zinc-α2-glycoprotein (ZAG) levels and increased Adiponectin, Leptin, and IL-6 levels in individuals with abnormal body weight. Correlation analyses demonstrated a statistically significant upward trend for IL-6 (p = 0.0008) and Leptin (p = 0.00001), with a similar trend observed for hsCRP without statistical significance (p = 0.113). IL-6 levels in the overweight group were 158.71% higher than in the normal-weight group, while the obese group exhibited a 229.55% increase compared to the normal-weight group. No notable changes have been recorded for the levels of Nesfatin-1. Based on our results, we propose IL-6, Leptin, and ZAG as potential biomarkers for monitoring interventions and assessing patient conditions in those with abnormal BMIs. Further research with a larger patient cohort is warranted to validate these correlations in overweight and obese individuals.
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Affiliation(s)
| | | | | | - Marta Jaskulak
- Department of Immunobiology and Environment Microbiology, Faculty of Health Sciences, Medical University of Gdansk, Debinki 7, 80-211 Gdańnsk, Poland; (M.Z.); (M.R.); (K.A.-P.); (K.Z.)
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Yadav MK, Ishida M, Gogoleva N, Liao CW, Salim FN, Kanai M, Kuno A, Hayashi T, Shahri ZJ, Kulathunga K, Samir O, Lyu W, Olivia O, Mbanefo EC, Takahashi S, Hamada M. MAFB in macrophages regulates cold-induced neuronal density in brown adipose tissue. Cell Rep 2024; 43:113978. [PMID: 38522069 DOI: 10.1016/j.celrep.2024.113978] [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: 05/10/2023] [Revised: 01/28/2024] [Accepted: 03/05/2024] [Indexed: 03/26/2024] Open
Abstract
Transcription factor MAFB regulates various homeostatic functions of macrophages. This study explores the role of MAFB in brown adipose tissue (BAT) thermogenesis using macrophage-specific Mafb-deficient (Mafbf/f::LysM-Cre) mice. We find that Mafb deficiency in macrophages reduces thermogenesis, energy expenditure, and sympathetic neuron (SN) density in BAT under cold conditions. This phenotype features a proinflammatory environment that is characterized by macrophage/granulocyte accumulation, increases in interleukin-6 (IL-6) production, and IL-6 trans-signaling, which lead to decreases in nerve growth factor (NGF) expression and reduction in SN density in BAT. We confirm MAFB regulation of IL-6 expression using luciferase readout driven by IL-6 promoter in RAW-264.7 macrophage cell lines. Immunohistochemistry shows clustered organization of NGF-producing cells in BAT, which are primarily TRPV1+ vascular smooth muscle cells, as additionally shown using single-cell RNA sequencing and RT-qPCR of the stromal vascular fraction. Treating Mafbf/f::LysM-Cre mice with anti-IL-6 receptor antibody rescues SN density, body temperature, and energy expenditure.
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Affiliation(s)
- Manoj Kumar Yadav
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba 305-8575, Japan; National Institutes of Health, Bethesda, MD 20892, USA
| | - Megumi Ishida
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Natalia Gogoleva
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Ching-Wei Liao
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Filiani Natalia Salim
- Centre for Medical Science and Technology and Healthcare Equity, Parahyangan Catholic University, Bandung 40141, Indonesia
| | - Maho Kanai
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Akihiro Kuno
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Takuto Hayashi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Zeynab Javanfekr Shahri
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Kaushalya Kulathunga
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Omar Samir
- Department of Pathology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA; Jeff and Penny Vinik Center for Allergic Disease Research, Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Wenxin Lyu
- Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba 305-8575, Japan; Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Department of Immunology and Microbiology, LEO Foundation Skin Immunology Research Center, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Olivia Olivia
- Faculty of Medicine, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | | | - Satoru Takahashi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Laboratory Animal Resource Center (LARC), Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan; Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8575, Japan.
| | - Michito Hamada
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Laboratory Animal Resource Center (LARC), Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan.
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Zhang Y, He X, Wang K, Xue Y, Hu S, Jin Y, Zhu G, Shi Q, Rui Y. Irisin alleviates obesity-induced bone loss by inhibiting interleukin 6 expression via TLR4/MyD88/NF-κB axis in adipocytes. J Adv Res 2024:S2090-1232(24)00156-5. [PMID: 38626873 DOI: 10.1016/j.jare.2024.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 04/10/2024] [Accepted: 04/13/2024] [Indexed: 05/03/2024] Open
Abstract
INTRODUCTION Obesity-induced bone loss affects the life quality of patients all over the world. Irisin, one of the myokines, plays an essential role in bone and fat metabolism. OBJECTIVE Investigate the effects of irisin on bone metabolism via adipocytes in the bone marrow microenvironment. METHODS In this study, we fed fibronectin type III domain-containing protein 5 (FNDC5, the precursor protein of irisin) knockout mice (FNDC5-/-) with a high-fat diet (HFD) for 10 weeks. The quality of bone mass was assessed by micro-CT analysis, histological staining, and dynamic bone formation. In vitro, the lipogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) was assayed by Oil Red O staining, and the osteogenic differentiation was assayed by alkaline phosphatase staining. Meanwhile, the gene expression in the BMSC-differentiated adipocytes by RNA sequence and the involved pathway of irisin were determined by western blot and qRT-PCR were performed. RESULTS The FNDC5-/- mice fed with a HFD showed an increased body weight, fat content of the bone marrow and bone, and a decreased bone formation compared with those with a standard diet (SD). In vitro, irisin inhibited the differentiation of BMSCs into adipocytes and alleviated the inhibition of osteogenesis derived from BMSCs by the adipocyte supernatant. RNA sequence and blocking experiment showed that irisin reduced the production of interleukin 6 (IL-6) in adipocytes through downregulating the TLR4/MyD88/NF-κB pathway. Immunofluorescence staining of bone marrow further confirmed an increased IL-6 expression in the FNDC5-/- mice fed with HFD compared with those fed with SD, which suffered serious bone loss. CONCLUSION Irisin downregulates activation of the TLR4/MyD88/NF-κB pathway, thereby reducing IL-6 production in adipocytes to enhance the osteogenesis of BMSCs. Thus, the rescue of osteogenesis of BMSCs, initially inhibited by IL-6, is a potential therapeutic target to mitigate obesity-induced osteoporosis.
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Affiliation(s)
- Yuanshu Zhang
- Department of Orthopedics, Wuxi Ninth People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu 214026, PR China; Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedics Institute of Soochow University, Suzhou, Jiangsu 215006, PR China
| | - Xu He
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedics Institute of Soochow University, Suzhou, Jiangsu 215006, PR China
| | - Kai Wang
- Department of Orthopedics, Wuxi Ninth People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu 214026, PR China; Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedics Institute of Soochow University, Suzhou, Jiangsu 215006, PR China
| | - Yuan Xue
- Department of Orthopedics, Wuxi Ninth People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu 214026, PR China
| | - Sihan Hu
- Department of Orthopedics, Wuxi Ninth People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu 214026, PR China
| | - Yesheng Jin
- Department of Orthopedics, Wuxi Ninth People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu 214026, PR China; Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedics Institute of Soochow University, Suzhou, Jiangsu 215006, PR China
| | - Guoqing Zhu
- Department of Physiology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu 211166, PR China
| | - Qin Shi
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedics Institute of Soochow University, Suzhou, Jiangsu 215006, PR China.
| | - Yongjun Rui
- Department of Orthopedics, Wuxi Ninth People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu 214026, PR China.
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Zaczek A, Lewiński A, Karbownik-Lewińska M, Lehoczki A, Gesing A. Impact of visceral adipose tissue on longevity and metabolic health: a comparative study of gene expression in perirenal and epididymal fat of Ames dwarf mice. GeroScience 2024:10.1007/s11357-024-01131-1. [PMID: 38517641 DOI: 10.1007/s11357-024-01131-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 03/09/2024] [Indexed: 03/24/2024] Open
Abstract
Emerging research underscores the pivotal role of adipose tissue in regulating systemic aging processes, particularly when viewed through the lens of the endocrine hypotheses of aging. This study delves into the unique adipose characteristics in an important animal model of aging - the long-lived Ames dwarf (df/df) mice. Characterized by a Prop1df gene mutation, these mice exhibit a deficiency in growth hormone (GH), prolactin, and TSH, alongside extremely low circulating IGF-1 levels. Intriguingly, while surgical removal of visceral fat (VFR) enhances insulin sensitivity in normal mice, it paradoxically increases insulin resistance in Ames dwarfs. This suggests an altered profile of factors produced in visceral fat in the absence of GH, indicating a unique interplay between adipose tissue function and hormonal influences in these models. Our aim was to analyze the gene expression related to lipid and glucose metabolism, insulin pathways, inflammation, thermoregulation, mitochondrial biogenesis, and epigenetic regulation in the visceral (perirenal and epididymal) adipose tissue of Ames dwarf and normal mice. Our findings reveal an upregulation in the expression of key genes such as Lpl, Adrβ3, Rstn, Foxo1, Foxo3a, Irs1, Cfd, Aldh2, Il6, Tnfα, Pgc1α, Ucp2, and Ezh2 in perirenal and Akt1, Foxo3a, PI3k, Ir, Acly, Il6, Ring1a, and Ring 1b in epididymal fat in df/df mice. These results suggest that the longevity phenotype in Ames dwarfs, which is determined by peripubertal GH/IGF-1 levels, may also involve epigenetic reprogramming of adipose tissue influenced by hormonal changes. The increased expression of genes involved in metabolic regulation, tumor suppression, mitochondrial biogenesis, and insulin pathways in Ames dwarf mice highlights potentially beneficial aspects of this model, opening new avenues for understanding the molecular underpinnings of longevity and aging.
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Affiliation(s)
- Agnieszka Zaczek
- Department of Endocrinology of Ageing, Medical University of Lodz, Lodz, Poland
| | - Andrzej Lewiński
- Department of Paediatric Endocrinology, Medical University of Lodz, Lodz, Poland
- Department of Endocrinology and Metabolic Diseases, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland
| | - Małgorzata Karbownik-Lewińska
- Department of Endocrinology and Metabolic Diseases, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland
| | - Andrea Lehoczki
- Department of Public Health, Semmelweis University, Budapest, Hungary
- Doctoral School, Health Sciences Program, Semmelweis University, Budapest, Hungary
- Department of Haematology and Stem Cell Transplantation, National Institute for Haematology and Infectious Diseases, South Pest Central Hospital, 1097, Budapest, Hungary
| | - Adam Gesing
- Department of Endocrinology of Ageing, Medical University of Lodz, Lodz, Poland.
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9
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Jin L, Diaz-Canestro C, Wang Y, Tse MA, Xu A. Exerkines and cardiometabolic benefits of exercise: from bench to clinic. EMBO Mol Med 2024; 16:432-444. [PMID: 38321233 PMCID: PMC10940599 DOI: 10.1038/s44321-024-00027-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: 10/13/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/08/2024] Open
Abstract
Regular exercise has both immediate and long-lasting benefits on cardiometabolic health, and has been recommended as a cornerstone of treatment in the management of diabetes and cardiovascular conditions. Exerkines, which are defined as humoral factors responsive to acute or chronic exercise, have emerged as important players conferring some of the multiple cardiometabolic benefits of exercise. Over the past decades, hundreds of exerkines released from skeletal muscle, heart, liver, adipose tissue, brain, and gut have been identified, and several exerkines (such as FGF21, IL-6, and adiponectin) have been exploited therapeutically as exercise mimetics for the treatment of various metabolic and cardiovascular diseases. Recent advances in metagenomics have led to the identification of gut microbiota, a so-called "hidden" metabolic organ, as an additional class of exerkines determining the efficacy of exercise in diabetes prevention, cardiac protection, and exercise performance. Furthermore, multiomics-based studies have shown the feasibility of using baseline exerkine signatures to predict individual responses to exercise with respect to metabolic and cardiorespiratory health. This review aims to explore the molecular pathways whereby exerkine networks mediate the cardiometabolic adaptations to exercise by fine-tuning inter-organ crosstalk, and discuss the roadmaps for translating exerkine-based discovery into the therapeutic application and personalized medicine in the management of the cardiometabolic disease.
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Affiliation(s)
- Leigang Jin
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, China
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Candela Diaz-Canestro
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, China
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yu Wang
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, China
- Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
| | - Michael Andrew Tse
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, China
- Centre for Sports and Exercise, The University of Hong Kong, Hong Kong, China
| | - Aimin Xu
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, China.
- Department of Medicine, The University of Hong Kong, Hong Kong, China.
- Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China.
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10
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Radványi Á, Röszer T. Interleukin-6: An Under-Appreciated Inducer of Thermogenic Adipocyte Differentiation. Int J Mol Sci 2024; 25:2810. [PMID: 38474057 DOI: 10.3390/ijms25052810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
Adipose tissue inflammation is a key factor leading to obesity-associated immune disorders, such as insulin resistance, beta cell loss in the pancreatic islets, meta-inflammation, and autoimmunity. Inhibiting adipose tissue inflammation is considered a straightforward approach to abrogate these diseases. However, recent findings show that certain pro-inflammatory cytokines are essential for the proper differentiation and functioning of adipocytes. Lipolysis is stimulated, and the thermogenic competence of adipocytes is unlocked by interleukin-6 (IL-6), a cytokine that was initially recognized as a key trigger of adipose tissue inflammation. Coherently, signal transducer and activator of transcription 3 (STAT3), which is a signal transducer for IL-6, is necessary for thermogenic adipocyte development. Given the impact of thermogenic adipocytes in increasing energy expenditure and reducing body adiposity, functions of IL-6 in the adipose tissue have gained attention recently. In this review, we show that IL-6 signaling may protect from excess fat accumulation by stimulating thermogenesis in adipocytes.
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Affiliation(s)
- Ádám Radványi
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Tamás Röszer
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
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11
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Nunn E, Jaiswal N, Gavin M, Uehara K, Stefkovich M, Drareni K, Calhoun R, Lee M, Holman CD, Baur JA, Seale P, Titchenell PM. Antibody blockade of activin type II receptors preserves skeletal muscle mass and enhances fat loss during GLP-1 receptor agonism. Mol Metab 2024; 80:101880. [PMID: 38218536 PMCID: PMC10832506 DOI: 10.1016/j.molmet.2024.101880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/02/2024] [Accepted: 01/09/2024] [Indexed: 01/15/2024] Open
Abstract
OBJECTIVE Glucagon-like peptide 1 (GLP-1) receptor agonists reduce food intake, producing remarkable weight loss in overweight and obese individuals. While much of this weight loss is fat mass, there is also a loss of lean mass, similar to other approaches that induce calorie deficit. Targeting signaling pathways that regulate skeletal muscle hypertrophy is a promising avenue to preserve lean mass and modulate body composition. Myostatin and Activin A are TGFβ-like ligands that signal via the activin type II receptors (ActRII) to antagonize muscle growth. Pre-clinical and clinical studies demonstrate that ActRII blockade induces skeletal muscle hypertrophy and reduces fat mass. In this manuscript, we test the hypothesis that combined ActRII blockade and GLP-1 receptor agonism will preserve muscle mass, leading to improvements in skeletomuscular and metabolic function and enhanced fat loss. METHODS In this study, we explore the therapeutic potential of bimagrumab, a monoclonal antibody against ActRII, to modify body composition alone and during weight loss induced by GLP-1 receptor agonist semaglutide in diet-induced obese mice. Mechanistically, we define the specific role of the anabolic kinase Akt in mediating the hypertrophic muscle effects of ActRII inhibition in vivo. RESULTS Treatment of obese mice with bimagrumab induced a ∼10 % increase in lean mass while simultaneously decreasing fat mass. Daily treatment of obese mice with semaglutide potently decreased body weight; this included a significant decrease in both muscle and fat mass. Combination treatment with bimagrumab and semaglutide led to superior fat mass loss while simultaneously preserving lean mass despite reduced food intake. Treatment with both drugs was associated with improved metabolic outcomes, and increased lean mass was associated with improved exercise performance. Deletion of both Akt isoforms in skeletal muscle modestly reduced, but did not prevent, muscle hypertrophy driven by ActRII inhibition. CONCLUSIONS Collectively, these data demonstrate that blockade of ActRII signaling improves body composition and metabolic parameters during calorie deficit driven by GLP-1 receptor agonism and demonstrate the existence of Akt-independent pathways supporting muscle hypertrophy in the absence of ActRII signaling.
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Affiliation(s)
- Elizabeth Nunn
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Natasha Jaiswal
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Matthew Gavin
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Kahealani Uehara
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Megan Stefkovich
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Karima Drareni
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Ryan Calhoun
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Michelle Lee
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Corey D Holman
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph A Baur
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Patrick Seale
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Paul M Titchenell
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
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12
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Bou Malhab LJ, Nair VA, Qaisar R, Pintus G, Abdel-Rahman WM. Towards Understanding the Development of Breast Cancer: The Role of RhoJ in the Obesity Microenvironment. Cells 2024; 13:174. [PMID: 38247865 PMCID: PMC10814036 DOI: 10.3390/cells13020174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/21/2023] [Accepted: 01/04/2024] [Indexed: 01/23/2024] Open
Abstract
Obesity is a growing pandemic with an increasing risk of inducing different cancer types, including breast cancer. Adipose tissue is proposed to be a major player in the initiation and progression of breast cancer in obese people. However, the mechanistic link between adipogenicity and tumorigenicity in breast tissues is poorly understood. We used in vitro and in vivo approaches to investigate the mechanistic relationship between obesity and the onset and progression of breast cancer. In obesity, adipose tissue expansion and remodeling are associated with increased inflammatory mediator's release and anti-inflammatory mediators' reduction.. In order to mimic the obesity micro-environment, we cultured cells in an enriched pro-inflammatory cytokine medium to which we added a low concentration of beneficial adipokines. Epithelial cells exposed to the obesity micro-environment were phenotypically transformed into mesenchymal-like cells, characterized by an increase in different mesenchymal markers and the acquisition of the major hallmarks of cancerous cells; these include sustained DNA damage, the activation of the ATR-Chk2 pathway, an increase in proliferation rate, cell invasion, and resistance to conventional chemotherapy. Transcriptomic analysis revealed that several genes, including RhoJ, CCL7, and MMP9, acted as potential major players in the observed phenomenon. The transcriptomics findings were confirmed in vitro using qRT-PCR and in vivo using high-fat-diet-fed mice. Our data suggests RhoJ as a potential novel molecular driver of tumor development in breast tissues and a mediator of cell resistance to conventional chemotherapy through PAK1 activation. These data propose that RhoJ is a potential target for therapeutic interventions in obese breast cancer patients.
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Affiliation(s)
- Lara J. Bou Malhab
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Vidhya A. Nair
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Rizwan Qaisar
- Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Gianfranco Pintus
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy;
| | - Wael M. Abdel-Rahman
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
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13
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Król-Kulikowska M, Urbanowicz I, Kepinska M. The Concentrations of Interleukin-6, Insulin, and Glucagon in the Context of Obesity and Type 2 Diabetes and Single Nucleotide Polymorphisms in IL6 and INS Genes. J Obes 2024; 2024:7529779. [PMID: 38250713 PMCID: PMC10798838 DOI: 10.1155/2024/7529779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/11/2023] [Accepted: 12/30/2023] [Indexed: 01/23/2024] Open
Abstract
Obesity and diabetes are a problem of modern medicine. Although the environmental factors contributing to the development of these diseases are widely known, research into genetic factors is still ongoing. At the same time, the role of inflammation in the pathophysiology of obesity and diabetes is increasingly emphasized. Therefore, the purpose of this study was to investigate the influence of two selected polymorphisms (rs1800795 and rs3842729) on the development of obesity and type 2 diabetes. In this study, 118 participants were examined, including a control group (nonobese and nondiabetic group), an obese group, and a diabetic group. Genotype analysis was performed using the PCR-RFLP method. It has been shown that in patients with the G/G genotype within the rs1800795 polymorphism (IL6), the chance of developing type 2 diabetes is several times lower compared to patients with the G/C and C/C genotypes. However, the rs3842729 polymorphism (INS) does not directly affect the risk of obesity or type 2 diabetes (T2D), although elevated insulin concentrations have been observed in obese and diabetic patients. These results confirm the impact of the rs1800795 polymorphism on the development of diabetes; however, this relationship is more complex and requires further research on other factors.
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Affiliation(s)
- Magdalena Król-Kulikowska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw 50-556, Poland
| | - Iwona Urbanowicz
- Department of Clinical Chemistry and Laboratory Hematology, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw 50-556, Poland
| | - Marta Kepinska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw 50-556, Poland
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14
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Nagarajan M, Maadurshni GB, Manivannan J. Exposure to low dose of Bisphenol A (BPA) intensifies kidney oxidative stress, inflammatory factors expression and modulates Angiotensin II signaling under hypertensive milieu. J Biochem Mol Toxicol 2024; 38:e23533. [PMID: 37718616 DOI: 10.1002/jbt.23533] [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: 03/24/2023] [Revised: 07/18/2023] [Accepted: 09/01/2023] [Indexed: 09/19/2023]
Abstract
Humans are constantly exposed to low concentrations of ubiquitous environmental pollutant, Bisphenol A (BPA). Due to the prevalence of hypertension (one of the major risk factors of cardiovascular disease [CVD]) in the population, it is necessary to explore the adverse effect of BPA under hypertension associated pathogenic milieu. The current study exposed the Nω-nitro-l-arginine methyl ester (L-NAME) induced hypertensive Wistar rats to low dose BPA (50 μg/kg) for 30 days period. In tissue samples immunohistochemistry, real-time quantitative polymerase chain reaction and enzymatic assays were conducted. Moreover, studies on primary kidney cell culture were employed to explore the impact of low dose of BPA exposure at nanomolar level (20-80 nM range) on renal cells through various fluorescence assays. The observed results illustrate that BPA exposure potentiates/aggravates hypertension induced tissue abnormalities (renal fibrosis), oxidative stress (ROS generation), elevated angiotensin-converting enzyme activity, malfunction of the antioxidant and tricarboxylic acid cycle enzymes, tissue lipid abnormalities and inflammatory factor expression (both messenger RNA and protein level of TNF-α and IL-6). Further, in vitro exposure of nM levels of BPA to primary kidney cells modulates oxidative stress (both superoxide and total ROS), mitochondrial physiology (reduced mitochondrial transmembrane potential-∆ψm) and lipid peroxidation in a dose dependent manner. In addition, angiotensin II induced ROS generation was aggravated further by BPA during coexposure in kidney cells. Therefore, during risk assessment, a precise investigation on BPA exposure in hypertensive (CVD vulnerable) populations is highly suggested.
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Affiliation(s)
- Manigandan Nagarajan
- Environmental Health and Toxicology Laboratory, Department of Environmental Sciences, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India
| | | | - Jeganathan Manivannan
- Environmental Health and Toxicology Laboratory, Department of Environmental Sciences, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India
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15
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Waldrop SW, Niemiec S, Wood C, Gyllenhammer LE, Jansson T, Friedman JE, Tryggestad JB, Borengasser SJ, Davidson EJ, Yang IV, Kechris K, Dabelea D, Boyle KE. Cord blood DNA methylation of immune and lipid metabolism genes is associated with maternal triglycerides and child adiposity. Obesity (Silver Spring) 2024; 32:187-199. [PMID: 37869908 PMCID: PMC10872762 DOI: 10.1002/oby.23915] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 10/24/2023]
Abstract
OBJECTIVE Fetal exposures may impact offspring epigenetic signatures and adiposity. The authors hypothesized that maternal metabolic traits associate with cord blood DNA methylation, which, in turn, associates with child adiposity. METHODS Fasting serum was obtained in 588 pregnant women (27-34 weeks' gestation), and insulin, glucose, high-density lipoprotein cholesterol, triglycerides, and free fatty acids were measured. Cord blood DNA methylation and child adiposity were measured at birth, 4-6 months, and 4-6 years. The association of maternal metabolic traits with DNA methylation (429,246 CpGs) for differentially methylated probes (DMPs) and regions (DMRs) was tested. The association of the first principal component of each DMR with child adiposity was tested, and mediation analysis was performed. RESULTS Maternal triglycerides were associated with the most DMPs and DMRs of all traits tested (261 and 198, respectively, false discovery rate < 0.05). DMRs were near genes involved in immune function and lipid metabolism. Triglyceride-associated CpGs were associated with child adiposity at 4-6 months (32 CpGs) and 4-6 years (2 CpGs). One, near CD226, was observed at both timepoints, mediating 10% and 22% of the relationship between maternal triglycerides and child adiposity at 4-6 months and 4-6 years, respectively. CONCLUSIONS DNA methylation may play a role in the association of maternal triglycerides and child adiposity.
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Affiliation(s)
- Stephanie W. Waldrop
- Section of Nutrition, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Sierra Niemiec
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Cheyret Wood
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Lauren E. Gyllenhammer
- Department of Pediatrics, University of California, Irvine, School of Medicine, Irvine, CA, USA
| | - Thomas Jansson
- Department of Obstetrics and Gynecology, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Jacob E. Friedman
- Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Jeanie B. Tryggestad
- Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Sarah J. Borengasser
- Section of Nutrition, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Elizabeth J. Davidson
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Ivana V. Yang
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO USA
- The Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Aurora, CO USA
| | - Katerina Kechris
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO USA
- The Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Aurora, CO USA
| | - Dana Dabelea
- The Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Aurora, CO USA
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Kristen E. Boyle
- Section of Nutrition, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO USA
- The Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Aurora, CO USA
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16
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Nagarajan M, Maadurshni GB, Manivannan J. Bisphenol A (BPA) exposure aggravates hepatic oxidative stress and inflammatory response under hypertensive milieu - Impact of low dose on hepatocytes and influence of MAPK and ER stress pathways. Food Chem Toxicol 2024; 183:114197. [PMID: 38029875 DOI: 10.1016/j.fct.2023.114197] [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: 03/29/2023] [Revised: 10/27/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023]
Abstract
Human exposure to the hazardous chemical, Bisphenol A (BPA), is almost ubiquitous. Due to the prevalence of hypertension (CVD risk factor) in the aged human population, it is necessary to explore its adverse effect in hypertensive subjects. The current study exposed the Nω-nitro-l-arginine methyl ester (L-NAME) induced hypertensive Wistar rats to human exposure relevant low dose of BPA (50 μg/kg) for 30 days period. The liver biochemical parameters, histopathology, immunohistochemistry, gene expression (RT-qPCR), trace elements (ICP-MS), primary rat hepatocytes cell culture and metabolomic (1H NMR) assessments were performed. Results illustrate that BPA exposure potentiates/aggravates hypertension induced tissue abnormalities (hepatic fibrosis), oxidative stress, ACE activity, malfunction of the antioxidant system, lipid abnormalities and inflammatory factor (TNF-α and IL-6) expression. Also, in cells, BPA increased ROS generation, mitochondrial dysfunction and lipid peroxidation without any impact on cytotoxicity and caspase 3 and 9 activation. Notably, BPA exposure modulate lipid metabolism (cholesterol and fatty acid) in primary hepatocytes. Finally, the influence of ERK1/2, p38MAPK, ER stress and oxidative stress during relatively high dose of BPA elicited cytotoxicity was observed. Therefore, a precise hazardous risk investigation of BPA exposure in hypertensive populations is highly recommended.
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Affiliation(s)
- Manikandan Nagarajan
- Environmental Health and Toxicology Laboratory, Department of Environmental Sciences, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India
| | | | - Jeganathan Manivannan
- Environmental Health and Toxicology Laboratory, Department of Environmental Sciences, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India.
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17
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Gunes A, Schmitt C, Bilodeau L, Huet C, Belblidia A, Baldwin C, Giard JM, Biertho L, Lafortune A, Couture CY, Cheung A, Nguyen BN, Galun E, Bémeur C, Bilodeau M, Laplante M, Tang A, Faraj M, Estall JL. IL-6 Trans-Signaling Is Increased in Diabetes, Impacted by Glucolipotoxicity, and Associated With Liver Stiffness and Fibrosis in Fatty Liver Disease. Diabetes 2023; 72:1820-1834. [PMID: 37757741 PMCID: PMC10658070 DOI: 10.2337/db23-0171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023]
Abstract
Many people living with diabetes also have nonalcoholic fatty liver disease (NAFLD). Interleukin-6 (IL-6) is involved in both diseases, interacting with both membrane-bound (classical) and circulating (trans-signaling) soluble receptors. We investigated whether secretion of IL-6 trans-signaling coreceptors are altered in NAFLD by diabetes and whether this might associate with the severity of fatty liver disease. Secretion patterns were investigated with use of human hepatocyte, stellate, and monocyte cell lines. Associations with liver pathology were investigated in two patient cohorts: 1) biopsy-confirmed steatohepatitis and 2) class 3 obesity. We found that exposure of stellate cells to high glucose and palmitate increased IL-6 and soluble gp130 (sgp130) secretion. In line with this, plasma sgp130 in both patient cohorts positively correlated with HbA1c, and subjects with diabetes had higher circulating levels of IL-6 and trans-signaling coreceptors. Plasma sgp130 strongly correlated with liver stiffness and was significantly increased in subjects with F4 fibrosis stage. Monocyte activation was associated with reduced sIL-6R secretion. These data suggest that hyperglycemia and hyperlipidemia can directly impact IL-6 trans-signaling and that this may be linked to enhanced severity of NAFLD in patients with concomitant diabetes. ARTICLE HIGHLIGHTS IL-6 and its circulating coreceptor sgp130 are increased in people with fatty liver disease and steatohepatitis. High glucose and lipids stimulated IL-6 and sgp130 secretion from hepatic stellate cells. sgp130 levels correlated with HbA1c, and diabetes concurrent with steatohepatitis further increased circulating levels of all IL-6 trans-signaling mediators. Circulating sgp130 positively correlated with liver stiffness and hepatic fibrosis. Metabolic stress to liver associated with fatty liver disease might shift the balance of IL-6 classical versus trans-signaling, promoting liver fibrosis that is accelerated by diabetes.
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Affiliation(s)
- Aysim Gunes
- Institut de recherches cliniques de Montréal (IRCM), Montreal, Quebec, Canada
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
- Montreal Diabetes Research Centre, Montreal, Quebec, Canada
| | - Clémence Schmitt
- Institut de recherches cliniques de Montréal (IRCM), Montreal, Quebec, Canada
- Programmes de biologie moléculaire, Faculté de médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Laurent Bilodeau
- Département de radiologie, Centre hospitalier de l’Université de Montréal (CHUM), Montreal, Quebec, Canada
| | - Catherine Huet
- Département de radiologie, Centre hospitalier de l’Université de Montréal (CHUM), Montreal, Quebec, Canada
| | - Assia Belblidia
- Département de radiologie, Centre hospitalier de l’Université de Montréal (CHUM), Montreal, Quebec, Canada
| | - Cindy Baldwin
- Institut de recherches cliniques de Montréal (IRCM), Montreal, Quebec, Canada
| | - Jeanne-Marie Giard
- Liver Unit, Centre hospitalier de l’Université de Montréal (CHUM), Département de médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Laurent Biertho
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec City, Quebec, Canada
- Département de chirurgie, Faculté de médecine, Université Laval, Quebec City, Quebec, Canada
| | - Annie Lafortune
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec City, Quebec, Canada
- Département de chirurgie, Faculté de médecine, Université Laval, Quebec City, Quebec, Canada
| | - Christian Yves Couture
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec City, Quebec, Canada
- Département de biologie moléculaire, biochimie médicale et pathologie, Université Laval, Quebec City, Quebec, Canada
| | - Angela Cheung
- Gastroenterology and Hepatology, Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Bich N. Nguyen
- Département de pathologie et biologie cellulaire, Université de Montréal, Montreal, Quebec, Canada
| | - Eithan Galun
- Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Chantal Bémeur
- Département de nutrition, Université de Montréal, Montreal, Quebec, Canada
- Labo HépatoNeuro, Centre de recherche du CHUM, Montreal, Quebec, Canada
| | - Marc Bilodeau
- Liver Unit, Centre hospitalier de l’Université de Montréal (CHUM), Département de médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Mathieu Laplante
- Montreal Diabetes Research Centre, Montreal, Quebec, Canada
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec City, Quebec, Canada
| | - An Tang
- Département de radiologie, Centre hospitalier de l’Université de Montréal (CHUM), Montreal, Quebec, Canada
| | - May Faraj
- Institut de recherches cliniques de Montréal (IRCM), Montreal, Quebec, Canada
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
- Montreal Diabetes Research Centre, Montreal, Quebec, Canada
- Département de nutrition, Université de Montréal, Montreal, Quebec, Canada
| | - Jennifer L. Estall
- Institut de recherches cliniques de Montréal (IRCM), Montreal, Quebec, Canada
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
- Montreal Diabetes Research Centre, Montreal, Quebec, Canada
- Programmes de biologie moléculaire, Faculté de médecine, Université de Montréal, Montreal, Quebec, Canada
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18
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Ardiana M, Suryawan IGR, Hermawan HO, Harsoyo PM, Shafira AA, Anandita FA. Effect of SARS-CoV-2 spike protein exposure on ACE2 and interleukin 6 productions in human adipocytes: An in-vitro study. NARRA J 2023; 3:e284. [PMID: 38455635 PMCID: PMC10919720 DOI: 10.52225/narra.v3i3.284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/27/2023] [Indexed: 03/09/2024]
Abstract
Since adipocytes play a crucial role in pathogenesis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection due to their interaction with angiotensin-converting enzyme 2 (ACE2) and interleukin 6 (IL-6), obesity is associated with an increased risk of coronavirus disease 2019 (COVID-19) mortality. Discovery of ACE2 as a SARS-CoV-2 receptor raises a controversy about whether to use ACE inhibitors (ACEIs) could be an optional therapy to prevent cytokine storms. Studies assessing the expressions of ACE2 and IL-6 upon exposure to SARS-CoV-2 is therefore important as a basis for therapeutical trials in the future. The aim of this study was to determine the effect of SARS-CoV-2 spike protein exposure on the production of ACE2 and IL-6 in adipocyte cells. Adipocytes were collected from abdominal adipose tissues of healthy and obese 45-year-old male donor having neither a history of SARS-CoV-2 infection nor COVID-19 vaccination. After being stained using the oil red O protocol, the viable adipocytes were then exposed to S1 subunit of SARS-CoV-2 spike protein. The levels of ACE2 and IL-6 were then examined using the enzyme-linked immunosorbent assay (ELISA). The results showed significant increase of ACE2 (90.22 µg/mL) and IL-6 level (60.01 µg/mL) in human adipocytes upon exposure compared to unexposed control cells (ACE2 13.33 µg/mL; IL-6 21.33 µg/mL), both comparisons had p<0.001). This study provides insight into the basic mechanism of severe COVID-19 symptoms in obese patients and provides a basic information of the potential of ACE inhibitors as an optional therapy for COVID-19 patients with obesity.
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Affiliation(s)
- Meity Ardiana
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
| | - I GR. Suryawan
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
| | - Hanestya O. Hermawan
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
| | - Primasitha M. Harsoyo
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
| | - Aisya A. Shafira
- Faculty of Medicine, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
| | - Faizal A. Anandita
- Master Program of Occupational Medicine, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
- Badaruddin Kasim General Hospital, Tabalong, Indonesia
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19
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Akhter N, Wilson A, Arefanian H, Thomas R, Kochumon S, Al-Rashed F, Abu-Farha M, Al-Madhoun A, Al-Mulla F, Ahmad R, Sindhu S. Endoplasmic Reticulum Stress Promotes the Expression of TNF-α in THP-1 Cells by Mechanisms Involving ROS/CHOP/HIF-1α and MAPK/NF-κB Pathways. Int J Mol Sci 2023; 24:15186. [PMID: 37894865 PMCID: PMC10606873 DOI: 10.3390/ijms242015186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Obesity and metabolic syndrome involve chronic low-grade inflammation called metabolic inflammation as well as metabolic derangements from increased endotoxin and free fatty acids. It is debated whether the endoplasmic reticulum (ER) stress in monocytic cells can contribute to amplify metabolic inflammation; if so, by which mechanism(s). To test this, metabolic stress was induced in THP-1 cells and primary human monocytes by treatments with lipopolysaccharide (LPS), palmitic acid (PA), or oleic acid (OA), in the presence or absence of the ER stressor thapsigargin (TG). Gene expression of tumor necrosis factor (TNF)-α and markers of ER/oxidative stress were determined by qRT-PCR, TNF-α protein by ELISA, reactive oxygen species (ROS) by DCFH-DA assay, hypoxia-inducible factor 1-alpha (HIF-1α), p38, extracellular signal-regulated kinase (ERK)-1,2, and nuclear factor kappa B (NF-κB) phosphorylation by immunoblotting, and insulin sensitivity by glucose-uptake assay. Regarding clinical analyses, adipose TNF-α was assessed using qRT-PCR/IHC and plasma TNF-α, high-sensitivity C-reactive protein (hs-CRP), malondialdehyde (MDA), and oxidized low-density lipoprotein (OX-LDL) via ELISA. We found that the cooperative interaction between metabolic and ER stresses promoted TNF-α, ROS, CCAAT-enhancer-binding protein homologous protein (CHOP), activating transcription factor 6 (ATF6), superoxide dismutase 2 (SOD2), and nuclear factor erythroid 2-related factor 2 (NRF2) expression (p ≤ 0.0183),. However, glucose uptake was not impaired. TNF-α amplification was dependent on HIF-1α stabilization and p38 MAPK/p65 NF-κB phosphorylation, while the MAPK/NF-κB pathway inhibitors and antioxidants/ROS scavengers such as curcumin, allopurinol, and apocynin attenuated the TNF-α production (p ≤ 0.05). Individuals with obesity displayed increased adipose TNF-α gene/protein expression as well as elevated plasma levels of TNF-α, CRP, MDA, and OX-LDL (p ≤ 0.05). Our findings support a metabolic-ER stress cooperativity model, favoring inflammation by triggering TNF-α production via the ROS/CHOP/HIF-1α and MAPK/NF-κB dependent mechanisms. This study also highlights the therapeutic potential of antioxidants in inflammatory conditions involving metabolic/ER stresses.
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Affiliation(s)
- Nadeem Akhter
- Department of Immunology & Microbiology, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (N.A.); (A.W.); (H.A.); (R.T.); (S.K.); (F.A.-R.); (R.A.)
| | - Ajit Wilson
- Department of Immunology & Microbiology, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (N.A.); (A.W.); (H.A.); (R.T.); (S.K.); (F.A.-R.); (R.A.)
| | - Hossein Arefanian
- Department of Immunology & Microbiology, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (N.A.); (A.W.); (H.A.); (R.T.); (S.K.); (F.A.-R.); (R.A.)
| | - Reeby Thomas
- Department of Immunology & Microbiology, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (N.A.); (A.W.); (H.A.); (R.T.); (S.K.); (F.A.-R.); (R.A.)
| | - Shihab Kochumon
- Department of Immunology & Microbiology, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (N.A.); (A.W.); (H.A.); (R.T.); (S.K.); (F.A.-R.); (R.A.)
| | - Fatema Al-Rashed
- Department of Immunology & Microbiology, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (N.A.); (A.W.); (H.A.); (R.T.); (S.K.); (F.A.-R.); (R.A.)
| | - Mohamed Abu-Farha
- Department of Translational Research, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (M.A.-F.); (F.A.-M.)
| | - Ashraf Al-Madhoun
- Department of Genetics & Bioinformatics, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait;
- Animal & Imaging Core Facilities, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait
| | - Fahd Al-Mulla
- Department of Translational Research, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (M.A.-F.); (F.A.-M.)
| | - Rasheed Ahmad
- Department of Immunology & Microbiology, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (N.A.); (A.W.); (H.A.); (R.T.); (S.K.); (F.A.-R.); (R.A.)
| | - Sardar Sindhu
- Department of Immunology & Microbiology, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait; (N.A.); (A.W.); (H.A.); (R.T.); (S.K.); (F.A.-R.); (R.A.)
- Animal & Imaging Core Facilities, Dasman Diabetes Institute, P.O. Box 1180, Dasman 15462, Kuwait
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20
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De Barra C, O'Shea D, Hogan AE. NK cells vs. obesity: A tale of dysfunction & redemption. Clin Immunol 2023; 255:109744. [PMID: 37604354 DOI: 10.1016/j.clim.2023.109744] [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: 06/01/2023] [Revised: 08/08/2023] [Accepted: 08/15/2023] [Indexed: 08/23/2023]
Abstract
Natural killer (NK) cells are critical in protecting the body against infection and cancer. NK cells can rapidly respond to these threats by directly targeting the infected or transformed cell using their cytotoxic machinery or by initiating and amplifying the immune response via their production of cytokines. Additionally, NK cells are resident across many tissues including adipose, were their role extends from host protection to tissue homeostasis. Adipose resident NK cells can control macrophage polarization via cytokine production, whilst also regulating stressed adipocyte fate using their cytotoxic machinery. Obesity is strongly associated with increased rates of cancer and a heightened susceptibility to severe infections. This is in part due to significant obesity-related immune dysregulation, including defects in both peripheral and adipose tissue NK cells. In this review, we detail the literature to date on NK cells in the setting of obesity - outlining the consequences, mechanisms and therapeutic interventions.
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Affiliation(s)
- Conor De Barra
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co Kildare, Ireland
| | - Donal O'Shea
- Obesity Immunology Group, Education and Research Centre, St Vincent's University Hospital, University College, Dublin 4, Ireland
| | - Andrew E Hogan
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co Kildare, Ireland; National Children's Research Centre, Dublin 12, Ireland.
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21
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Mubtasim N, Gollahon L. Characterizing 3T3-L1 MBX Adipocyte Cell Differentiation Maintained with Fatty Acids as an In Vitro Model to Study the Effects of Obesity. Life (Basel) 2023; 13:1712. [PMID: 37629569 PMCID: PMC10455818 DOI: 10.3390/life13081712] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
The increasing prevalence of obesity has prompted intensive research into understanding its role in pathogenesis and designing appropriate treatments. To determine the signals generated from the interaction of fat cells with a target organ, a reliable white adipocyte model in vitro is needed. Differentiated fibroblasts are the most extensively studied using in vitro cell models of white adipocytes. However, it can be argued that differentiated fibroblasts minimally recapitulate the consequences of obesity. Here, we describe 3T3-L1 MBX cells as a culture model for studying obese adipocytes and their effects. Differentiation of 3T3-L1 MBX cells was at first optimized and then maintained in the presence of fatty acids cocktail combination to induce the obese condition. Lipid accumulation and adipokine secretion profiles were analyzed. Results showed that fatty acid-maintained, differentiated 3T3-L1 MBX cells had significantly greater accumulation of lipids and significant changes in the adipokine secretions in comparison to differentiated 3T3-L1 MBX cells maintained in medium without fatty acids. To elucidate the molecular changes associated with adipogenesis and lipid accumulation profile of 3T3-L1 MBX cells, we have also explored the expression of some of the regulatory proteins related to the development and maintenance of adipocytes from the preadipocyte lineage.
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Affiliation(s)
| | - Lauren Gollahon
- Department of Biological Sciences, Texas Tech University, 2500 Broadway, Lubbock, TX 79409, USA;
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22
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Cavallo C, Boffa A, Salerno M, Merli G, Grigolo B, Filardo G. Adipose Tissue-Derived Products May Present Inflammatory Properties That Affect Chondrocytes and Synoviocytes from Patients with Knee Osteoarthritis. Int J Mol Sci 2023; 24:12401. [PMID: 37569775 PMCID: PMC10418602 DOI: 10.3390/ijms241512401] [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: 06/30/2023] [Revised: 07/25/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Adipose tissue-derived cell-based injectable therapies have been demonstrated to have disease-modifying effects on joint tissues in preclinical studies on animal osteoarthritis (OA) models, but clinical results are heterogeneous and not always satisfactory. The aim of this study was to investigate the influence of adipose tissue properties on the therapeutic effects of the adipose-derived product in an in vitro OA setting. Micro-fragmented adipose tissue (MF-AT) samples were obtained from 21 OA patients (mean age 51.7 ± 11.8 years, mean BMI 25.7 ± 4.1 kg/m2). The analysis of the MF-AT supernatant was performed to analyze the release of inflammatory factors. The effects of MF-AT inflammatory factors were investigated on chondrocytes and synoviocytes gene expression levels. Patients' characteristics were analyzed to explore their influence on MF-AT inflammatory molecules and on the MF-AT effects on the gene expression of chondrocytes and synoviocytes. The study results demonstrated that adipose tissue-derived products may present inflammatory properties that influence the therapeutic potential for OA treatment, with products with a higher pro-inflammatory profile stimulating a higher expression of genes related to a more inflamed and catabolic phenotype. A higher pro-inflammatory cytokine pattern and a higher pro-inflammatory effect were found in adipose tissue-derived products obtained from OA patients with higher BMI.
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Affiliation(s)
- Carola Cavallo
- Laboratorio RAMSES, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (C.C.); (B.G.)
| | - Angelo Boffa
- Clinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy;
| | - Manuela Salerno
- Applied and Translational Research (ATR) Center, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (G.M.); (G.F.)
| | - Giulia Merli
- Applied and Translational Research (ATR) Center, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (G.M.); (G.F.)
| | - Brunella Grigolo
- Laboratorio RAMSES, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (C.C.); (B.G.)
| | - Giuseppe Filardo
- Applied and Translational Research (ATR) Center, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (G.M.); (G.F.)
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23
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Andersen AL, Gribsholt SB, Pedersen L, Thomsen RW, Benfield TL, Søgaard O, Nielsen SL, Omland LH, Lindegaard B, Richelsen B, Bodilsen J, Bruun JM. The impact of age and obesity on outcomes among patients hospitalized with COVID-19 in Denmark: A nationwide cohort study. Obes Sci Pract 2023; 9:355-363. [PMID: 37546282 PMCID: PMC10399535 DOI: 10.1002/osp4.659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 01/04/2023] Open
Abstract
Purpose Obesity may alter the severity of infection with Coronavirus disease 2019 (COVID-19). Age may impact the association between body weight and severity of COVID-19 in patients with obesity. The aim of the study was to examine the association between obesity and severity of infection in a Danish cohort hospitalized with COVID-19 in the initial wave of the pandemic. Patients and methods Based on data from the nationwide, clinical database: COVID-DK, risks of intensive care unit (ICU) admission, invasive mechanical ventilation (IMV), and mortality were compared among patients with and without obesity. Interaction with age was examined and we used Inverse Probability of Treatment Weighting regression for confounder adjustment. Results Among 524 patients, 142 (27%) were admitted to the ICU, 112 (21%) required IMV, and 109 (21%) died. Compared to COVID-19 patients without obesity, patients with obesity displayed a non-significant increased risk of ICU admission (Relative Risk [RR] 1.19, 95% Confidence Interval [CI] 0.88; 1.60), IMV (RR 1.23, CI 0.86; 1.75) and mortality (RR 1.21, CI 0.84; 1.75). COVID-19 patients with obesity, <60 years had highly increased risk of ICU admission (RR 1.92, CI 1.14; 3.24) and IMV (RR 1.95, CI 1.09; 3.49). Conclusions In hospitalized COVID-19 patients, obesity conferred an approximately 20% increased risk for ICU admission, IMV, and death, although these relationships did not reach statistical significance. COVID-19 patients with obesity and <60 years had an almost doubled risk of ICU admission and IMV.
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Affiliation(s)
- Anton Lund Andersen
- Steno Diabetes Centre AarhusAarhus University HospitalAarhus NDenmark
- Danish National Centre for ObesityAarhus NDenmark
| | - Sigrid Bjerge Gribsholt
- Steno Diabetes Centre AarhusAarhus University HospitalAarhus NDenmark
- Danish National Centre for ObesityAarhus NDenmark
- Department of Endocrinology and Internal MedicineAarhus University HospitalAarhus NDenmark
| | - Lars Pedersen
- Department of Clinical EpidemiologyAarhus University HospitalAarhus NDenmark
| | | | - Thomas Lars Benfield
- Department of Infectious DiseasesCopenhagen University Hospital, Amager and HvidovreHvidovreDenmark
- Department of Clinical MedicineFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Ole Søgaard
- Department Infectious DiseaseAarhus University HospitalAarhusDenmark
- Department of Clinical MedicineAarhus UniversityAarhus CDenmark
| | | | - Lars Haukali Omland
- Department of Infectious DiseasesCopenhagen University Hospital, RigshospitaletCopenhagenDenmark
| | - Birgitte Lindegaard
- Department of Clinical MedicineFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Department of Pulmonary and Infectious DiseasesUniversity Hospital of Copenhagen, North Zealand HospitalHillerødDenmark
- Centre for Physical ActivityCopenhagen University Hospital, RigshospitaletCopenhagenDenmark
| | - Bjørn Richelsen
- Steno Diabetes Centre AarhusAarhus University HospitalAarhus NDenmark
- Department of Endocrinology and Internal MedicineAarhus University HospitalAarhus NDenmark
- Department of Clinical MedicineAarhus UniversityAarhus CDenmark
| | - Jacob Bodilsen
- Department of Infectious DiseasesAalborg University HospitalAalborgDenmark
| | - Jens Meldgaard Bruun
- Steno Diabetes Centre AarhusAarhus University HospitalAarhus NDenmark
- Danish National Centre for ObesityAarhus NDenmark
- Department of Clinical MedicineAarhus UniversityAarhus CDenmark
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24
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Sanches MD, Goldberg TBL, Rizzo ADCB, da Silva VN, Mosca LN, Romagnoli GG, Gorgulho CM, Araujo Junior JP, de Lima GR, Betti IR, Kurokawa CS. Inflammatory cytokines and chemokines in obese adolescents with antibody against to adenovirus 36. Sci Rep 2023; 13:9918. [PMID: 37336969 DOI: 10.1038/s41598-023-33084-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/06/2023] [Indexed: 06/21/2023] Open
Abstract
Obesity in adolescents has reached epidemic proportions and is associated with the inflammatory response and viral infections. The aim of this study was to understand the profile of inflammatory cytokines and chemokines associated with the inflammatory response and metabolic syndrome (MetS) in obese adolescents with positive serology for adenovirus 36 (ADV36). Thirty-six overweight, 36 obese, and 25 severe obesity adolescents aged 10 to 16 years were included in the study. The following variables were analyzed: sex, age, body mass index (BMI), blood pressure, total cholesterol and fractions, triglycerides, glucose, serum cytokine concentrations, and ADV36 antibodies. Cytokines and chemokines were quantified by cytometry and ADV36 serology was determined by enzyme-linked immunosorbent assay (ELISA). The results showed higher levels of the cytokines interleukin-1beta (IL-1β), IL-6, IL-10 and of the chemokine interferon-gamma-inducible protein 10 (IP-10) in severe obesity adolescents compared to the obese and overweight groups, as well as in the group with MetS compared to the group without this syndrome. The frequency of ADV36-positive individuals did not differ between groups. The findings revealed differences in BMI between the obese and severe obesity groups versus the overweight group in the presence of positivity for ADV36, suggesting an association with weight gain and possibly MetS installation.
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25
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Yuen MMA. Health Complications of Obesity: 224 Obesity-Associated Comorbidities from a Mechanistic Perspective. Gastroenterol Clin North Am 2023; 52:363-380. [PMID: 37197879 DOI: 10.1016/j.gtc.2023.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Obesity is associated with a wide range of comorbidities that transverse multiple specialties in clinical medicine. The development of these comorbidities is driven by various mechanistic changes including chronic inflammation and oxidative stress, increased growth-promoting adipokines, insulin resistance, endothelial dysfunction, direct loading and infiltrative effect of adiposity, heightened activities of the renin-angiotensin-aldosterone system and sympathetic nervous system, impaired immunity, altered sex hormones, altered brain structure, elevated cortisol levels, and increased uric acid production, among others. Some of the comorbidities might develop secondary to one or more other comorbidities. Considering the obesity-associated comorbidities in the context of the mechanistic changes is helpful in understanding these conditions and in guiding treatment and future research.
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Affiliation(s)
- Michele M A Yuen
- Department of Medicine, Obesity, Metabolism and Nutrition Institute, Massachusetts General Hospital; University of Hong Kong, 102 Pokfulam Road, Pok Fu Lam, Hong Kong.
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26
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Buchynskyi M, Kamyshna I, Oksenych V, Zavidniuk N, Kamyshnyi A. The Intersection of COVID-19 and Metabolic-Associated Fatty Liver Disease: An Overview of the Current Evidence. Viruses 2023; 15:v15051072. [PMID: 37243158 DOI: 10.3390/v15051072] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 04/23/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
The global population is currently experiencing the impact of the SARS-CoV-2 coronavirus, which has caused the Coronavirus Disease 2019 (COVID-19) pandemic. With our profound comprehension of COVID-19, encompassing the involvement sequence of the respiratory tract, gastrointestinal system, and cardiovascular apparatus, the multiorgan symptoms of this infectious disease have been discerned. Metabolic-associated fatty liver disease (MAFLD), formerly known as non-alcoholic fatty liver disease (NAFLD), is a pervasive public health concern intricately linked with metabolic dysregulation and estimated to afflict one-fourth of the global adult population. The burgeoning focus on the association between COVID-19 and MAFLD is justified by the potential role of the latter as a risk factor for both SARS-CoV-2 infection and the subsequent emergence of severe COVID-19 symptoms. Investigations have suggested that changes in both innate and adaptive immune responses among MAFLD patients may play a role in determining the severity of COVID-19. The remarkable similarities observed in the cytokine pathways implicated in both diseases imply the existence of shared mechanisms governing the chronic inflammatory responses characterizing these conditions. The effect of MAFLD on the severity of COVID-19 illness remains uncertain, as indicated by conflicting results in cohort investigations.
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Affiliation(s)
- Mykhailo Buchynskyi
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Iryna Kamyshna
- Department of Medical Rehabilitation, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Valentyn Oksenych
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology (NTNU), 7028 Trondheim, Norway
| | - Nataliia Zavidniuk
- Department of Infectious Diseases with Epidemiology, Dermatology and Venerology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Aleksandr Kamyshnyi
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
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27
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Hojeij B, Rousian M, Sinclair KD, Dinnyes A, Steegers-Theunissen RPM, Schoenmakers S. Periconceptional biomarkers for maternal obesity: a systematic review. Rev Endocr Metab Disord 2023; 24:139-175. [PMID: 36520252 PMCID: PMC10023635 DOI: 10.1007/s11154-022-09762-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/01/2022] [Indexed: 12/23/2022]
Abstract
Periconceptional maternal obesity is linked to adverse maternal and neonatal outcomes. Identifying periconceptional biomarkers of pathways affected by maternal obesity can unravel pathophysiologic mechanisms and identify individuals at risk of adverse clinical outcomes. The literature was systematically reviewed to identify periconceptional biomarkers of the endocrine, inflammatory and one-carbon metabolic pathways influenced by maternal obesity. A search was conducted in Embase, Ovid Medline All, Web of Science Core Collection and Cochrane Central Register of Controlled Trials databases, complemented by manual search in PubMed until December 31st, 2020. Eligible studies were those that measured biomarker(s) in relation to maternal obesity, overweight/obesity or body mass index (BMI) during the periconceptional period (14 weeks preconception until 14 weeks post conception). The ErasmusAGE score was used to assess the quality of included studies. Fifty-one articles were included that evaluated over 40 biomarkers. Endocrine biomarkers associated with maternal obesity included leptin, insulin, thyroid stimulating hormone, adiponectin, progesterone, free T4 and human chorionic gonadotropin. C-reactive protein was associated with obesity as part of the inflammatory pathway, while the associated one-carbon metabolism biomarkers were folate and vitamin B12. BMI was positively associated with leptin, C-reactive protein and insulin resistance, and negatively associated with Free T4, progesterone and human chorionic gonadotropin. Concerning the remaining studied biomarkers, strong conclusions could not be established due to limited or contradictory data. Future research should focus on determining the predictive value of the optimal set of biomarkers for their use in clinical settings. The most promising biomarkers include leptin, adiponectin, human chorionic gonadotropin, insulin, progesterone and CRP.
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Affiliation(s)
- Batoul Hojeij
- Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, 3015GD, The Netherlands
| | - Melek Rousian
- Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, 3015GD, The Netherlands
| | - Kevin D Sinclair
- School of Biosciences, Sutton Bonnington Campus, University of Nottingham, Leicestershire, LE12 6HD, UK
| | - Andras Dinnyes
- BioTalentum Ltd., Godollo, 2100, Hungary
- Department of Cell Biology and Molecular Medicine, University of Szeged, Szeged, 6720, Hungary
- Department of Physiology and Animal Health, Institute of Physiology and Animal Nutrition, Hungarian University of Agriculture and Life Sciences, Godollo, 2100, Hungary
| | | | - Sam Schoenmakers
- Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, 3015GD, The Netherlands.
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Lodewijks F, McKinsey TA, Robinson EL. Fat-to-heart crosstalk in health and disease. Front Genet 2023; 14:990155. [PMID: 37035745 PMCID: PMC10079901 DOI: 10.3389/fgene.2023.990155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 03/13/2023] [Indexed: 04/11/2023] Open
Abstract
According to the latest World Health Organization statistics, cardiovascular disease (CVD) is one of the leading causes of death globally. Due to the rise in the prevalence of major risk factors, such as diabetes mellitus and obesity, the burden of CVD is expected to worsen in the decades to come. Whilst obesity is a major and consistent risk factor for CVD, the underlying pathological molecular communication between peripheral fat depots and the heart remains poorly understood. Adipose tissue (AT) is a major endocrine organ in the human body, with composite cells producing and secreting hormones, cytokines, and non-coding RNAs into the circulation to alter the phenotype of multiple organs, including the heart. Epicardial AT (EAT) is an AT deposit that is in direct contact with the myocardium and can therefore influence cardiac function through both mechanical and molecular means. Moreover, resident and recruited immune cells comprise an important adipose cell type, which can create a pro-inflammatory environment in the context of obesity, potentially contributing to systemic inflammation and cardiomyopathies. New mechanisms of fat-to-heart crosstalk, including those governed by non-coding RNAs and extracellular vesicles, are being investigated to deepen the understanding of this highly common risk factor. In this review, molecular crosstalk between AT and the heart will be discussed, with a focus on endocrine and paracrine signaling, immune cells, inflammatory cytokines, and inter-organ communication through non-coding RNAs.
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Affiliation(s)
- Fleur Lodewijks
- Department of Pathology, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
| | - Timothy A. McKinsey
- Department of Medicine, Division of Cardiology and Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Emma L. Robinson
- Department of Medicine, Division of Cardiology and Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
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29
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Shah NM, Kaltsakas G. Respiratory complications of obesity: from early changes to respiratory failure. Breathe (Sheff) 2023. [DOI: 10.1183/20734735.0263-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
Obesity is a significant and increasingly common cause of respiratory compromise. It causes a decrease in static and dynamic pulmonary volumes. The expiratory reserve volume is one of the first to be affected. Obesity is associated with reduced airflow, increased airway hyperresponsiveness, and an increased risk of developing pulmonary hypertension, pulmonary embolism, respiratory tract infections, obstructive sleep apnoea and obesity hypoventilation syndrome. The physiological changes caused by obesity will eventually lead to hypoxic or hypercapnic respiratory failure. The pathophysiology of these changes includes a physical load of adipose tissue on the respiratory system and a systemic inflammatory state. Weight loss has clear, well-defined benefits in improving respiratory and airway physiology in obese individuals.
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30
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Fontenelle LC, de Paiva Sousa M, Dos Santos LR, Cardoso BEP, de Sousa TGV, da Cunha Soares T, de Sousa Melo SR, Morais JBS, da Silva Dias TM, de Oliveira FE, Braz DC, de Castro E Sousa JM, Torres-Leal FL, Henriques GS, do Nascimento Marreiro D. RELATIONSHIP BETWEEN SELENIUM NUTRITIONAL STATUS AND MARKERS OF LOW-GRADE CHRONIC INFLAMMATION IN OBESE WOMEN. Biol Trace Elem Res 2023; 201:663-676. [PMID: 35381948 DOI: 10.1007/s12011-022-03209-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/15/2022] [Indexed: 02/07/2023]
Abstract
Low-grade chronic inflammation is one of the main disorders that characterize adipose tissue dysfunction in obesity and is an important element in the pathogenesis of several comorbidities. In this context, selenium is an essential micronutrient that exerts important anti-inflammatory functions, and the role of selenium in controlling inflammation associated with obesity is not well defined. Thus, this study aimed to evaluate the relationship between markers of the nutritional status of selenium and low-grade chronic inflammation in obese women. This cross-sectional study included 81 women aged between 18 and 50 years, who were divided into two groups according to body mass index (BMI): the obesity group (n = 38) and normal weight group (n = 43). Selenium intake was assessed by 3-day diet records. The plasma, erythrocyte, and urinary selenium concentrations were determined using inductively coupled plasma optical emission spectrometry. The analysis of serum cytokines interleukin (IL)-8, IL-1β, IL-6, IL-10, and tumor necrosis factor alpha (TNFα) was performed using flow cytometry. The results of this study revealed that the obese women had higher dietary intake of selenium than eutrophic women. However, obese participants showed decreased selenium concentrations in plasma and erythrocytes, in parallel with increased concentrations of selenium in the urine. Regarding the inflammatory parameters, obese women exhibited higher concentrations of IL-6 and lower concentrations of the cytokines IL-8, IL-1β, and TNFα than eutrophic women. In the binary logistic regression analysis, erythrocyte selenium was considered an independent predictor of the serum concentrations of cytokine IL-8 in obese women, reflecting the anti-inflammatory action of this micronutrient.
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31
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Hortová-Kohoutková M, Skotáková M, Onyango IG, Slezáková M, Panovský R, Opatřil L, Slanina P, De Zuani M, Mrkva O, Andrejčinová I, Lázničková P, Dvončová M, Mýtniková A, Ostland V, Šitina M, Stokin GB, Šrámek V, Vlková M, Helán M, Frič J. Hepcidin and ferritin levels as markers of immune cell activation during septic shock, severe COVID-19 and sterile inflammation. Front Immunol 2023; 14:1110540. [PMID: 36776891 PMCID: PMC9911830 DOI: 10.3389/fimmu.2023.1110540] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/16/2023] [Indexed: 01/28/2023] Open
Abstract
Introduction Major clinically relevant inflammatory events such as septic shock and severe COVID-19 trigger dynamic changes in the host immune system, presenting promising candidates for new biomarkers to improve precision diagnostics and patient stratification. Hepcidin, a master regulator of iron metabolism, has been intensively studied in many pathologies associated with immune system activation, however these data have never been compared to other clinical settings. Thus, we aimed to reveal the dynamics of iron regulation in various clinical settings and to determine the suitability of hepcidin and/or ferritin levels as biomarkers of inflammatory disease severity. Cohorts To investigate the overall predictive ability of hepcidin and ferritin, we enrolled the patients suffering with three different diagnoses - in detail 40 patients with COVID-19, 29 patients in septic shock and eight orthopedic patients who were compared to nine healthy donors and all cohorts to each other. Results We showed that increased hepcidin levels reflect overall immune cell activation driven by intrinsic stimuli, without requiring direct involvement of infection vectors. Contrary to hepcidin, ferritin levels were more strongly boosted by pathogen-induced inflammation - in septic shock more than four-fold and in COVID-19 six-fold in comparison to sterile inflammation. We also defined the predictive capacity of hepcidin-to-ferritin ratio with AUC=0.79 and P = 0.03. Discussion Our findings confirm that hepcidin is a potent marker of septic shock and other acute inflammation-associated pathologies and demonstrate the utility of the hepcidin-to-ferritin ratio as a predictor of mortality in septic shock, but not in COVID-19.
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Affiliation(s)
| | - Monika Skotáková
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Isaac G. Onyango
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Miriam Slezáková
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Roman Panovský
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia,1st Department of Internal Medicine/Cardioangiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Lukáš Opatřil
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia,1st Department of Internal Medicine/Cardioangiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Peter Slanina
- Institute of Clinical Immunology and Allergology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Marco De Zuani
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Ondřej Mrkva
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Ivana Andrejčinová
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Petra Lázničková
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Martina Dvončová
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Alexandra Mýtniková
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia,Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czechia
| | | | - Michal Šitina
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia,Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Gorazd B. Stokin
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia,Celica BIOMEDICAL, Ljubljana, Slovenia,Division of Neurology, University Medical Centre, Ljubljana, Slovenia
| | - Vladimír Šrámek
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Marcela Vlková
- Institute of Clinical Immunology and Allergology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Martin Helán
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia,Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Jan Frič
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia,Department of Modern Immunotherapy, Institute of Hematology and Blood Transfusion, Prague, Czechia,*Correspondence: Jan Frič,
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32
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Johnston EK, Abbott RD. Adipose Tissue Paracrine-, Autocrine-, and Matrix-Dependent Signaling during the Development and Progression of Obesity. Cells 2023; 12:407. [PMID: 36766750 PMCID: PMC9913478 DOI: 10.3390/cells12030407] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/19/2023] [Accepted: 01/23/2023] [Indexed: 01/27/2023] Open
Abstract
Obesity is an ever-increasing phenomenon, with 42% of Americans being considered obese (BMI ≥ 30) and 9.2% being considered morbidly obese (BMI ≥ 40) as of 2016. With obesity being characterized by an abundance of adipose tissue expansion, abnormal tissue remodeling is a typical consequence. Importantly, this pathological tissue expansion is associated with many alterations in the cellular populations and phenotypes within the tissue, lending to cellular, paracrine, mechanical, and metabolic alterations that have local and systemic effects, including diabetes and cardiovascular disease. In particular, vascular dynamics shift during the progression of obesity, providing signaling cues that drive metabolic dysfunction. In this review, paracrine-, autocrine-, and matrix-dependent signaling between adipocytes and endothelial cells is discussed in the context of the development and progression of obesity and its consequential diseases, including adipose fibrosis, diabetes, and cardiovascular disease.
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Affiliation(s)
| | - Rosalyn D. Abbott
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
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Smith LA, Craven DM, Rainey MA, Cozzo AJ, Carson MS, Glenny EM, Sheth N, McDonell SB, Rezeli ET, Montgomery SA, Bowers LW, Coleman MF, Hursting SD. Separate and combined effects of advanced age and obesity on mammary adipose inflammation, immunosuppression and tumor progression in mouse models of triple negative breast cancer. Front Oncol 2023; 12:1031174. [PMID: 36686775 PMCID: PMC9846347 DOI: 10.3389/fonc.2022.1031174] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/31/2022] [Indexed: 01/05/2023] Open
Abstract
Introduction Advanced age and obesity are independent risk and progression factors for triple negative breast cancer (TNBC), which presents significant public health concerns for the aging population and its increasing burden of obesity. Due to parallels between advanced age- and obesityrelated biology, particularly adipose inflammation, we hypothesized that advanced age and obesity each accelerate mammary tumor growth through convergent, and likely interactive, mechanisms. Methods To test this hypothesis, we orthotopically transplanted murine syngeneic TNBC cells into the mammary glands of young normoweight control (7 months), young diet-induced obese (DIO), aged normoweight control (17 months), and aged DIO female C57BL/6J mice. Results Here we report accelerated tumor growth in aged control and young DIO mice, compared with young controls. Transcriptional analyses revealed, with a few exceptions, overlapping patterns of mammary tumor inflammation and tumor immunosuppression in aged control mice and young DIO mice, relative to young controls. Moreover, aged control and young DIO tumors, compared with young controls, had reduced abundance ofcytotoxic CD8 T cells. Finally, DIO in advanced age exacerbated mammary tumor growth, inflammation and tumor immunosuppression. Discussion These findings demonstrate commonalities in the mechanisms driving TNBC in aged and obese mice, relative to young normoweight controls. Moreover, we found that advanced age and DIO interact to accelerate mammary tumor progression. Given the US population is getting older and more obese, age- and obesity-related biological differences will need to be considered when developing mechanism-based strategies for preventing or controlling breast cancer.
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Affiliation(s)
- Laura A. Smith
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Dalton M. Craven
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Magdalena A. Rainey
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Alyssa J. Cozzo
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Meredith S. Carson
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Elaine M. Glenny
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Nishita Sheth
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Shannon B. McDonell
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Erika T. Rezeli
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Stephanie A. Montgomery
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Laura W. Bowers
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Michael F. Coleman
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Stephen D. Hursting
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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Cortés-Macías E, Selma-Royo M, Rio-Aige K, Bäuerl C, Rodríguez-Lagunas MJ, Martínez-Costa C, Pérez-Cano FJ, Collado MC. Distinct breast milk microbiota, cytokine, and adipokine profiles are associated with infant growth at 12 months: an in vitro host-microbe interaction mechanistic approach. Food Funct 2023; 14:148-159. [PMID: 36472137 DOI: 10.1039/d2fo02060b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Breast milk (BM) is important for adequate infant development, and it contains bioactive compounds, such as bacteria, cytokines and some adipokines which play a role in infant microbial, metabolic, and immunological maturation. However, little is known about its impact on growth and development in early life. The objective of this study was to evaluate the impact of milk microbiota, cytokine, and adipokine profiles on the risk of overweight at 12 months of life to find the possible mechanisms of host-microbe interactions. In this study, BM samples from 100 healthy women collected during 15 d after birth were included. BM microbiota was analysed by 16S rRNA gene sequencing, and cytokine and adipokine levels were measured by the Luminex approach. In addition, infant weight and length were recorded during the first 12 months and z-scores were obtained according to the WHO databases. Infants were classified as risk of overweight (ROW) and no-risk of overweight (NOROW) based on their body mass index z-score (BMIZ) and infant weight-for-length z-score (WLZ) at 12 months. In order to study host-microbe interactions, epithelial intestinal and mammary cell lines were exposed to milk microbes to assess the host response by interleukin (IL)-6 production as a potential inflammatory marker. BM was dominated by Staphylococcus and Streptococcus genera, and the most abundant cytokines were IL-6 and IL-18. Leptin levels were positively correlated with the pregestational body mass index (BMI). Higher relative abundance of the Streptococcus genus was associated with higher IL-10 and higher relative abundance of the Bifidobacterium genus was associated with lower IL-6 concentrations in milk. Infant WLZ at 12 months could be partially predicted by Streptococcus genus proportions and IL-10 and IL-18 levels in BM. BM microbiota significantly induced cytokine responses in mammary epithelial cells. Higher levels of IL-6 production were observed in mammary cells exposed to BM microbiota from mothers with ROW offspring compared to mothers with NOROW offspring. In conclusion, BM microbiota is related to the cytokine profile. IL-10 and IL-18 levels and the abundance of the Streptococcus genus could affect early infant development. Further research is needed to clarify the specific impact of BM microbiota and cytokines on infant growth and the risk of overweight.
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Affiliation(s)
- Erika Cortés-Macías
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-, National Research Council (IATA-CSIC), Valencia, Spain.
| | - Marta Selma-Royo
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-, National Research Council (IATA-CSIC), Valencia, Spain.
| | - Karla Rio-Aige
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona (UB), 08028 Barcelona, Spain.,Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
| | - Christine Bäuerl
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-, National Research Council (IATA-CSIC), Valencia, Spain.
| | - María José Rodríguez-Lagunas
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona (UB), 08028 Barcelona, Spain.,Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
| | - Cecilia Martínez-Costa
- Department of Pediatrics, School of Medicine, University of Valencia, Valencia, Spain.,Pediatric Gastroenterology and Nutrition Section, Hospital Clínico Universitario Valencia, INCLIVA, Valencia, Spain
| | - Francisco J Pérez-Cano
- Physiology Section, Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona (UB), 08028 Barcelona, Spain.,Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
| | - Maria Carmen Collado
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-, National Research Council (IATA-CSIC), Valencia, Spain.
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Salas-Venegas V, Santín-Márquez R, Ramírez-Carreto RJ, Rodríguez-Cortés YM, Cano-Martínez A, Luna-López A, Chavarría A, Konigsberg M, López-Díazguerrero NE. Chronic consumption of a hypercaloric diet increases neuroinflammation and brain senescence, promoting cognitive decline in middle-aged female Wistar rats. Front Aging Neurosci 2023; 15:1162747. [PMID: 37139092 PMCID: PMC10149996 DOI: 10.3389/fnagi.2023.1162747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/20/2023] [Indexed: 05/05/2023] Open
Abstract
Being overweight and obesity are world health problems, with a higher prevalence in women, defined as abnormal or excessive fat accumulation that increases the risk of chronic diseases. Excess energy leads to adipose expansion, generating hypertrophic adipocytes that produce various pro-inflammatory molecules. These molecules cause chronic low-intensity inflammation, affecting the organism's functioning and the central nervous system (CNS), inducing neuroinflammation. The neuroinflammatory response during obesity occurs in different structures of the CNS involved in memory and learning, such as the cortex and the hippocampus. Here we analyzed how obesity-related peripheral inflammation can affect CNS physiology, generating neuroinflammation and promoting cellular senescence establishment. Since some studies have shown an increase in senescent cells during aging, obesity, and neurodegenerative diseases, we proposed that cellular senescence participation may contribute to the cognitive decline in an obesity model of middle-aged female Wistar rats. The inflammatory state of 6 and 13 months-old female Wistar rats fed with a hypercaloric diet was measured in serum and CNS (cortex and hippocampus). Memory was evaluated using the novel object recognition (NOR) test; the presence of senescent markers was also determined. Our data suggest that the systemic inflammation generated by obesity induces a neuroinflammatory state in regions involved in learning and memory, with an increase in senescent markers, thus proposing senescence as a potential participant in the negative consequences of obesity in cognition.
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Affiliation(s)
- Verónica Salas-Venegas
- Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Unidad Iztapalapa, Mexico City, Mexico
- Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City, Mexico
| | - Roberto Santín-Márquez
- Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Unidad Iztapalapa, Mexico City, Mexico
- Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City, Mexico
| | - Ricardo Jair Ramírez-Carreto
- Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Yesica María Rodríguez-Cortés
- Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Agustina Cano-Martínez
- Departamento de Fisiología, Instituto Nacional de Cardiología “Ignacio Chávez”, CDMX, Mexico City, Mexico
| | - Armando Luna-López
- Departamento de Investigación Básica, Instituto Nacional de Geriatría, CDMX, Mexico City, Mexico
| | - Anahí Chavarría
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Mina Konigsberg
- Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City, Mexico
| | - Norma Edith López-Díazguerrero
- Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City, Mexico
- *Correspondence: Norma Edith López-Díazguerrero,
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Mulas A, Cienfuegos S, Ezpeleta M, Lin S, Pavlou V, Varady KA. Effect of intermittent fasting on circulating inflammatory markers in obesity: A review of human trials. Front Nutr 2023; 10:1146924. [PMID: 37139450 PMCID: PMC10149732 DOI: 10.3389/fnut.2023.1146924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/20/2023] [Indexed: 05/05/2023] Open
Abstract
Obesity is associated with low-grade inflammation. Weight loss, by means of dietary restriction, has been shown to reduce systemic inflammation. Intermittent fasting has recently gained popularity as a weight loss diet, but its effects on inflammatory markers in individuals with obesity have yet to be summarized. Accordingly, this review examined how the two main forms of intermittent fasting, i.e., time restricted eating (TRE) and alternate day fasting (ADF), impact body weight and key circulating inflammatory markers (i.e., C-reactive protein (CRP), tumor necrosis factor-alpha (TNF-alpha), and interleukin-6 (IL-6)), in adults with obesity. Results from this review reveal that TRE with various eating window durations (4-10 h per day) has no effect on circulating levels of CRP, TNF-alpha or IL-6, with 1-5% weight loss. As for ADF, reductions in CRP concentrations were noted when >6% weight loss was achieved. However, ADF had no effect on TNF-alpha or IL-6 concentrations, with this degree of weight loss. Thus, intermittent fasting has little or no effect on key inflammatory markers, but more research is warranted to confirm these preliminary findings.
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Yoo A, Lee S. Neuronal growth regulator 1 may modulate interleukin-6 signaling in adipocytes. Front Mol Biosci 2023; 10:1148521. [PMID: 37187893 PMCID: PMC10175572 DOI: 10.3389/fmolb.2023.1148521] [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: 01/20/2023] [Accepted: 04/18/2023] [Indexed: 05/17/2023] Open
Abstract
Interleukin-6 (IL-6) is a pleiotropic cytokine that plays both anti- and pro-inflammatory roles. Due to the restricted expression of membrane IL-6 receptor (IL-6R), most pro-inflammatory functions of IL-6 are attributed to its association with soluble IL-6R (sIL-6R). Neuronal growth regulator 1 (NEGR1) is a brain-enriched membrane protein that has recently been recognized as a risk factor for many human diseases including obesity, depression, and autism. In the present study, we report that the expression levels of IL-6 and IL-6R, as well as the phosphorylation of signal transducer and activator of transcription (STAT) 3, were significantly elevated in white adipose tissues of Negr1 knockout mice. Elevated levels of circulating IL-6 and sIL-6R have also been observed in Negr1 -/- mice. Furthermore, NEGR1 interacted with IL-6R, which was supported by subcellular fractionation and an in situ proximity ligation assay. Importantly, NEGR1 expression attenuated the phosphorylation of STAT3 by sIL-6R, suggesting that NEGR1 negatively regulates IL-6 trans-signaling. Taken together, we propose that NEGR1 may play a regulatory role in IL-6 signaling by interacting with IL-6R, which may contribute to a molecular link underlying obesity, inflammation, and the depression cycle.
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Sahu B, Bal NC. Adipokines from white adipose tissue in regulation of whole body energy homeostasis. Biochimie 2023; 204:92-107. [PMID: 36084909 DOI: 10.1016/j.biochi.2022.09.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 08/08/2022] [Accepted: 09/01/2022] [Indexed: 02/06/2023]
Abstract
Diseases originating from altered energy homeostasis including obesity, and type 2 diabetes are rapidly increasing worldwide. Research in the last few decades on animal models and humans demonstrates that the white adipose tissue (WAT) is critical for energy balance and more than just an energy storage site. WAT orchestrates the whole-body metabolism through inter-organ crosstalk primarily mediated by cytokines named "Adipokines". The adipokines influence metabolism and fuel selection of the skeletal muscle and liver thereby fine-tuning the load on WAT itself in physiological conditions like starvation, exercise and cold. In addition, adipokine secretion is influenced by various pathological conditions like obesity, inflammation and diabetes. In this review, we have surveyed the current state of knowledge on important adipokines and their significance in regulating energy balance and metabolic diseases. Furthermore, we have summarized the interplay of pro-inflammatory and anti-inflammatory adipokines in the modulation of pathological conditions.
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Affiliation(s)
- Bijayashree Sahu
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha, 751024, India.
| | - Naresh C Bal
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha, 751024, India.
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Nash D, Hughes MG, Butcher L, Aicheler R, Smith P, Cullen T, Webb R. IL-6 signaling in acute exercise and chronic training: Potential consequences for health and athletic performance. Scand J Med Sci Sports 2023; 33:4-19. [PMID: 36168944 PMCID: PMC10092579 DOI: 10.1111/sms.14241] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/25/2022] [Accepted: 09/20/2022] [Indexed: 12/13/2022]
Abstract
The cytokine interleukin-6 (IL-6) is involved in a diverse set of physiological processes. Traditionally, IL-6 has been thought of in terms of its inflammatory actions during the acute phase response and in chronic conditions such as rheumatoid arthritis and obesity. However, IL-6 is also an important signaling molecule during exercise, being acutely released from working muscle fibers with increased exercise duration, intensity, and muscle glycogen depletion. In this context, IL-6 enables muscle-organ crosstalk, facilitating a coordinated response to help maintain muscle energy homeostasis, while also having anti-inflammatory actions. The range of actions of IL-6 can be explained by its dichotomous signaling pathways. Classical signaling involves IL-6 binding to a cell-surface receptor (mbIL-6R; present on only a small number of cell types) and is the predominant signaling mechanism during exercise. Trans-signaling involves IL-6 binding to a soluble version of its receptor (sIL-6R), with the resulting complex having a much greater half-life and the ability to signal in all cell types. Trans-signaling drives the inflammatory actions of IL-6 and is the predominant pathway in disease. A single nucleotide polymorphism (rs2228145) on the IL-6R gene can modify the classical/trans-signaling balance through increasing the levels of sIL-6R. This SNP has clinical significance, having been linked to inflammatory conditions such as rheumatoid arthritis and type 1 diabetes, as well as to the severity of symptoms experienced with COVID-19. This review will describe how acute exercise, chronic training and the rs2228145 SNP can modify the IL-6 signaling pathway and the consequent implications for health and athletic performance.
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Affiliation(s)
- Dan Nash
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Michael G Hughes
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Lee Butcher
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Rebecca Aicheler
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Paul Smith
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Tom Cullen
- Research Centre for Sport, Exercise and Life Sciences, Coventry University, Coventry, UK
| | - Richard Webb
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
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40
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Kaviani M, Nikooyeh B, Etesam F, Behnagh SJ, Kangarani HM, Arefi M, Yaghmaei P, Neyestani TR. Effects of vitamin D supplementation on depression and some selected pro-inflammatory biomarkers: a double-blind randomized clinical trial. BMC Psychiatry 2022; 22:694. [PMID: 36368945 PMCID: PMC9651884 DOI: 10.1186/s12888-022-04305-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 10/13/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Both augmented inflammatory reaction and low vitamin D status are associated with depression but the magnitude of their relationships is unclear. This study was, therefore, conducted to evaluate the effects of vitamin D supplementation on serum 25(OH)D concentration, depression severity and some pro-inflammatory biomarkers in patients with mild to moderate depression. METHODS An 8-week double-blind randomized clinical trial (RCT) was performed on 56 (18-60 yrs) patients with mild to moderate depression, randomly assigned to intervention (50,000 IU cholecalciferol 2wks-1) and control (placebo) groups. Serum 25(OH)D, intact parathyroid hormone (iPTH), interlukin (IL)-1β, IL-6, high-sensitivity C-reactive protein (hs-CRP) and depression severity (Beck Depression Inventory-II) (BDI-II)) were initially and finally assessed. RESULTS At the end point, statistically significant changes were observed only in intervention group as compared with controls including increased 25(OH)D concentration (+ 40.83 ± 28.57 vs. + 5.14 ± 23.44 nmol L-1, P < 0.001) and decreased depression severity (-11.75 ± 6.40 vs. -3.61 ± 10.40, P = 0.003). No significant within- or between group differences were observed in serum IL-1β, IL-6 and hs-CRP concentrations. CONCLUSION Increased circulating 25(OH)D concentrations following 8-week vitamin D supplementation (50,000 IU 2wks-1) resulted in a significant decrease in BDI-II scores in patients with mild to moderate depression. However, this effect was independent of the serum concentrations of the studied inflammatory biomarkers. TRIAL REGISTRATION The clinical trial registration code was obtained from the Iranian Registry of Clinical Trials (date of registration: 17/09/2018, registration number: IRCT20170926036425N1) and ClinicalTrials.gov (date of registration: 04/12/2018, registration number: NCT03766074).
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Affiliation(s)
- Mina Kaviani
- grid.419697.40000 0000 9489 4252Department of Science Translation and Public Food and Nutrition Education, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, No.7- Shahid Hafezi (West Arghavan) St., Farahzadi Blvd., Sanat Sq. Shahrak Qods (Gharb), Tehran, 1981619573 Iran
| | - Bahareh Nikooyeh
- grid.419697.40000 0000 9489 4252Laboratory of Nutrition Research, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, No.7- Shahid Hafezi (West Arghavan) St., Farahzadi Blvd, Sanat Sq. Shahrak Qods (Gharb), Tehran, 1981619573 Iran
| | - Farnaz Etesam
- grid.414574.70000 0004 0369 3463Imam Khomeini Hospital Complex, Tohid Sq, Tehran, 1419733141 Iran
| | | | | | | | - Parichehreh Yaghmaei
- grid.411463.50000 0001 0706 2472Department of Biology, Faculty of Basic Sciences, Science and Research Branch, Islamic Azad University, Daneshgah Blvd, Simon Bulivar Blvd, Tehran, 1477893855 Iran
| | - Tirang R. Neyestani
- grid.419697.40000 0000 9489 4252Laboratory of Nutrition Research, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, No.7- Shahid Hafezi (West Arghavan) St., Farahzadi Blvd, Sanat Sq. Shahrak Qods (Gharb), Tehran, 1981619573 Iran
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Belchior-Bezerra M, Lima RS, Medeiros NI, Gomes JAS. COVID-19, obesity, and immune response 2 years after the pandemic: A timeline of scientific advances. Obes Rev 2022; 23:e13496. [PMID: 35837843 PMCID: PMC9349458 DOI: 10.1111/obr.13496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 02/06/2023]
Abstract
In the 2 years since the COVID-19 pandemic was officially declared, science has made considerable strides in understanding the disease's pathophysiology, pharmacological treatments, immune response, and vaccination, but there is still much room for further advances, especially in comprehending its relationship with obesity. Science has not yet described the mechanisms that explain how obesity is directly associated with a poor prognosis. This paper gathers all published studies over the past 2 years that have described immune response, obesity, and COVID-19, a historical and chronological record for researchers and the general public alike. In summary, these studies describe how the cytokine/adipokine levels and inflammatory markers, such as the C-reactive protein, are associated with a higher body mass index in COVID-19-positive patients, suggesting that the inflammatory background and immune dysregulation in individuals with obesity may be expressed in the results and that adiposity may influence the immune response. The timeline presented here is a compilation of the results of 2 years of scientific inquiry, describing how the science has progressed, the principal findings, and the challenges ahead regarding SARS-CoV-2, COVID-19, and emerging variants, especially in patients with obesity.
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Affiliation(s)
- Mayara Belchior-Bezerra
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rafael Silva Lima
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Nayara I Medeiros
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Imunologia Celular e Molecular, Instituto René Rachou, Fundação Oswaldo Cruz - FIOCRUZ, Belo Horizonte, Brazil
| | - Juliana A S Gomes
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Roles of Interleukin-6-mediated immunometabolic reprogramming in COVID-19 and other viral infection-associated diseases. Int Immunopharmacol 2022; 110:109005. [PMID: 35780641 PMCID: PMC9236983 DOI: 10.1016/j.intimp.2022.109005] [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: 05/04/2022] [Revised: 06/20/2022] [Accepted: 06/24/2022] [Indexed: 01/08/2023]
Abstract
Interleukin-6 (IL-6) is a highly pleiotropic glycoprotein factor that can modulate innate and adaptive immunity as well as various aspects of metabolism, including glycolysis, fatty acid oxidation and oxidative phosphorylation. Recently, the expression and release of IL-6 is shown to be significantly increased in numerous diseases related to virus infection, and this increase is positively correlated with the disease severity. Immunity and metabolism are two highly integrated and interdependent systems, the balance between them plays a pivotal role in maintaining body homeostasis. IL-6-elicited inflammatory response is found to be closely associated with metabolic disorder in patients with viral infection. This brief review summarizes the regulatory role of IL-6 in immunometabolic reprogramming among seven viral infection-associated diseases.
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Kochumon S, Jacob T, Koshy M, Al-Rashed F, Sindhu S, Al-Ozairi E, Al-Mulla F, Rosen ED, Ahmad R. Palmitate Potentiates Lipopolysaccharide-Induced IL-6 Production via Coordinated Acetylation of H3K9/H3K18, p300, and RNA Polymerase II. THE JOURNAL OF IMMUNOLOGY 2022; 209:731-741. [DOI: 10.4049/jimmunol.2100928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 06/08/2022] [Indexed: 01/04/2023]
Abstract
Abstract
IL-6 is elevated in obese individuals and participates in the metabolic dysfunction associated with that condition. However, the mechanisms that promote IL-6 expression in obesity are incompletely understood. Because elevated levels of palmitate and LPS have been reported in obesity, we investigated whether these agents interact to potentiate IL-6 production. In this study, we report that LPS induces higher levels of IL-6 in human monocytes in the presence of palmitate. Notably, the priming effect of palmitate is associated with enhanced p300 binding and transcription factor recruitment to Il6 promoter regions. Gene silencing of p300 blocks this action of palmitate. RNA polymerase II recruitment was also enhanced at the Il6 promoter in palmitate/LPS-exposed cells. Acetylation levels of H3K9 and H3K18 were increased in monocytes treated with palmitate. Moreover, LPS stimulation of palmitate-treated cells led to increased levels of the transcriptionally permissive acetylation marks H3K9/H3K18 in the Il6 promoter compared with LPS alone. The effect of palmitate on LPS-induced IL-6 production was suppressed by the inhibition of histone acetyltransferases. Conversely, histone deacetylase inhibitors trichostatin A or sodium butyrate can substitute for palmitate in IL-6 production. Esterification of palmitate with CoA was involved, whereas β-oxidation and ceramide biosynthesis were not required, for the induction of IL-6 and H3K9/H3K18 acetylation. Monocytes of obese individuals showed significantly higher H3K9/H3K18 acetylation and Il6 expression. Overall, our findings support a model in which increased levels of palmitate in obesity create a setting for LPS to potentiate IL-6 production via chromatin remodeling, enabling palmitate to contribute to metabolic inflammation.
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Affiliation(s)
- Shihab Kochumon
- *Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Texy Jacob
- *Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Merin Koshy
- *Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fatema Al-Rashed
- *Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Sardar Sindhu
- *Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Ebaa Al-Ozairi
- †Medical Division, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- ‡Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Evan D. Rosen
- §Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, MA; and
- ¶Harvard Medical School, Boston, MA
| | - Rasheed Ahmad
- *Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
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Mehta NN, Patel NH. Potential Markers of Coronary Artery Plaque and Future Events: Are They Right Under Our Nose? JACC. CARDIOVASCULAR IMAGING 2022; 15:1439-1441. [PMID: 35926902 DOI: 10.1016/j.jcmg.2022.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 05/26/2022] [Indexed: 10/16/2022]
Affiliation(s)
- Nehal N Mehta
- Section of Inflammation and Cardiometabolic Diseases, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
| | - Nidhi H Patel
- Section of Inflammation and Cardiometabolic Diseases, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
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45
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Almengló C, Fu X, Flores-Arias MT, Fernández ÁL, Viñuela JE, Martínez-Cereijo JM, Durán D, Rodríguez-Mañero M, González-Juanatey JR, Eiras S. Synergism between obesity and HFpEF on neutrophils phenotype and its regulation by adipose tissue-molecules and SGLT2i dapagliflozin. J Cell Mol Med 2022; 26:4416-4427. [PMID: 35818731 PMCID: PMC9357605 DOI: 10.1111/jcmm.17466] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 05/30/2022] [Accepted: 06/15/2022] [Indexed: 11/27/2022] Open
Abstract
The adiposity invokes innate immune activity, coronary microvascular dysfunction and consequently heart failure preserved ejection fraction (HFpEF). Our aim was to study the neutrophils profile on obesity and cardiovascular disease and its regulation by adipose tissue-secretome and dapagliflozin. We have isolated neutrophils from patients undergoing open heart surgery (19 women and 51 men). Its migration activity was performed with culture-transwell, transcriptional studies of proteolytic enzymes, adhesion molecules or receptors were analysed by real-time PCR and proteomics (from 20 patients) analysis by TripleTOF mass spectrometer. Differentiated HL-60 (dHL-60) was used as a preclinical model on microfluidic for endothelial cells attaching assays and genes regulation with epicardial and subcutaneous fat secretomes from patients (3 women and 9 men) or dapagliflozin 1-10 μM treatments. The transcriptional and proteomics studies have determined higher levels of adhesion molecules in neutrophils from patients with obesity. The adhesion molecule CD11b levels were higher in those patients with the combined obesity and HFpEF factors (1.70 ± 0.06 a.u. without obesity, 1.72 ± 0.04 a.u. obesity or HFpEF without obesity and 1.79 ± 0.08 a.u. obesity and HFpEF; p < .01). While fat-secretome induces its upregulation, dapagliflozin can modulated it. Because CD11b upregulation is associated with higher neutrophils migration and adhesion into endothelial cells, dapagliflozin might modulate this mechanism on patients with obesity and HFpEF.
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Affiliation(s)
- Cristina Almengló
- Cardiology Group, Health Research Institute, Santiago de Compostela, Spain
| | - Xiaoran Fu
- Translational Cardiology Group, Health Research Institute, Santiago de Compostela, Spain
| | - María Teresa Flores-Arias
- Photonics4 Life Research Group, Applied Physics Department, Facultade de Física and Facultade de Óptica e Optometría, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Ángel L Fernández
- Heart Surgery Department, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain.,CIBERCV Madrid, Madrid, Spain
| | - Juan E Viñuela
- Translational Cardiology Group, Health Research Institute, Santiago de Compostela, Spain.,Immunology Laboratory, Health Research Institute, Santiago de Compostela, Spain
| | - José M Martínez-Cereijo
- Heart Surgery Department, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain
| | - Darío Durán
- Heart Surgery Department, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain.,CIBERCV Madrid, Madrid, Spain
| | - Moisés Rodríguez-Mañero
- Translational Cardiology Group, Health Research Institute, Santiago de Compostela, Spain.,CIBERCV Madrid, Madrid, Spain.,Cardiovascular Department, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain
| | - José R González-Juanatey
- Cardiology Group, Health Research Institute, Santiago de Compostela, Spain.,CIBERCV Madrid, Madrid, Spain.,Cardiovascular Department, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain
| | - Sonia Eiras
- Translational Cardiology Group, Health Research Institute, Santiago de Compostela, Spain.,CIBERCV Madrid, Madrid, Spain
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Mika K, Szafarz M, Zadrożna M, Nowak B, Bednarski M, Szczepańska K, Pociecha K, Kubacka M, Nicosia N, Juda I, Kieć-Kononowicz K, Kotańska M. KSK-74: Dual Histamine H3 and Sigma-2 Receptor Ligand with Anti-Obesity Potential. Int J Mol Sci 2022; 23:ijms23137011. [PMID: 35806019 PMCID: PMC9266460 DOI: 10.3390/ijms23137011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 12/10/2022] Open
Abstract
Many studies involving compounds that enhance histamine release, such as histamine H3 receptor (H3R) antagonists, have shown efficacy in inhibiting weight gain, but none have passed clinical trials. As part of the search for H3 receptor ligands that have additional properties, the aim of this study is to evaluate the activity in the reduction in weight gain in a rat model of excessive eating, as well as the impact on selected metabolic parameters, and the number and size of adipocytes of two new H3R antagonists, KSK-60 and KSK-74, which also exert a significant affinity at the sigma-2 receptor. Compounds KSK-60 and KSK-74 are homologues and the elongation of the distal part of the molecule resulted in an approximate two-fold reduction in affinity at H3R, but simultaneously an almost two-fold increase in affinity at the sigma-2 receptor. Animals fed palatable feed and receiving KSK-60 or KSK-74 both at 10 mg/kg b.w. gained significantly less weight than animals in the control obese group. Moreover, KSK-74 significantly compensated for metabolic disturbances that accompany obesity, such as an increase in plasma triglyceride, resistin, and leptin levels; improved glucose tolerance; and protected experimental animals against adipocyte hypertrophy. Furthermore, KSK-74 inhibited the development of inflammation in obesity-exposed adipose tissue. The in vivo pharmacological activity of the tested ligands appears to correlate with the affinity at the sigma-2 receptors; however, the explanation of this phenomenon requires further and extended research.
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Affiliation(s)
- Kamil Mika
- Department of Pharmacological Screening, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (K.M.); (M.B.); (M.K.); (N.N.)
| | - Małgorzata Szafarz
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (M.S.); (K.P.)
| | - Monika Zadrożna
- Department of Cytobiology, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (M.Z.); (B.N.); (I.J.)
| | - Barbara Nowak
- Department of Cytobiology, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (M.Z.); (B.N.); (I.J.)
| | - Marek Bednarski
- Department of Pharmacological Screening, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (K.M.); (M.B.); (M.K.); (N.N.)
| | - Katarzyna Szczepańska
- Technology and Biotechnology of Medical Remedies, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (K.S.); (K.K.-K.)
- Department of Medicinal Chemistry, Maj Institute of Pharmacology Polish Academy of Sciences, Smętna 12, 31-343 Cracow, Poland
| | - Krzysztof Pociecha
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (M.S.); (K.P.)
| | - Monika Kubacka
- Department of Pharmacological Screening, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (K.M.); (M.B.); (M.K.); (N.N.)
| | - Noemi Nicosia
- Department of Pharmacological Screening, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (K.M.); (M.B.); (M.K.); (N.N.)
- Foundation “Prof. Antonio Imbesi”, University of Messina, Piazza Pugliatti 1, 98122 Messina, Italy
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Palatucci, 98168 Messina, Italy
| | - Izabela Juda
- Department of Cytobiology, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (M.Z.); (B.N.); (I.J.)
| | - Katarzyna Kieć-Kononowicz
- Technology and Biotechnology of Medical Remedies, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (K.S.); (K.K.-K.)
| | - Magdalena Kotańska
- Department of Pharmacological Screening, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (K.M.); (M.B.); (M.K.); (N.N.)
- Correspondence: ; Tel./Fax: +48-12-6205530
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Effects of Backfat Thickness on Oxidative Stress and Inflammation of Placenta in Large White Pigs. Vet Sci 2022; 9:vetsci9060302. [PMID: 35737354 PMCID: PMC9230826 DOI: 10.3390/vetsci9060302] [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: 05/07/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 11/16/2022] Open
Abstract
The purpose of this study was to evaluate the impact of the backfat thickness of sows on reproductive performance and on lipid metabolism, oxidative stress, and inflammation. At farrowing, 60 sows were assigned to three groups: the low-backfat-thickness group (LBF, n = 20): sows’ backfat thickness was between 9 and 12 mm; the medium-backfat-thickness group (MBF, n = 20): sows’ backfat thickness was between 13 and 20 mm; and the high-backfat-thickness group (HBF, n = 20): sows’ backfat thickness was between 21 and 25 mm. Maternal and fetal blood and placental samples were collected. Compared with the LBF and HBF groups, the MBF group delivered a significantly greater number of live piglets than the LBF or HBF groups. The different backfat thicknesses of sows had different effects on the lipid-related hormones and adipokines of maternal and fetal serum and placenta. Sows with poor or excessive backfat displayed higher levels of oxidative stress and higher levels of pro-inflammatory cytokines. According to these data, the thickness of a sow’s backfat affects the characteristics of farrowing piglets and their lipid metabolism, as well as placental inflammation, maternal inflammation, and oxidative stress. A moderate backfat thickness (between 13 and 20 mm) was associated with greater reproductive performance in sows.
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48
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Dunn GA, Mitchell AJ, Selby M, Fair DA, Gustafsson HC, Sullivan EL. Maternal diet and obesity shape offspring central and peripheral inflammatory outcomes in juvenile non-human primates. Brain Behav Immun 2022; 102:224-236. [PMID: 35217175 PMCID: PMC8995380 DOI: 10.1016/j.bbi.2022.02.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 01/21/2022] [Accepted: 02/19/2022] [Indexed: 12/30/2022] Open
Abstract
The obesity epidemic affects 40% of adults in the US, with approximately one-third of pregnant women classified as obese. Previous research suggests that children born to obese mothers are at increased risk for a number of health conditions. The mechanisms behind this increased risk are poorly understood. Increased exposure to in-utero inflammation induced by maternal obesity is proposed as an underlying mechanism for neurodevelopmental alterations in offspring. Utilizing a non-human primate model of maternal obesity, we hypothesized that maternal consumption of an obesogenic diet will predict offspring peripheral (e.g., cytokines and chemokines) and central (microglia number) inflammatory outcomes via the diet's effects on maternal adiposity and maternal inflammatory state during the third trimester. We used structural equation modeling to simultaneously examine the complex associations among maternal diet, metabolic state, adiposity, inflammation, and offspring central and peripheral inflammation. Four latent variables were created to capture maternal chemokines and pro-inflammatory cytokines, and offspring cytokine and chemokines. Model results showed that offspring microglia counts in the basolateral amygdala were associated with maternal diet (β = -0.622, p < 0.01), adiposity (β = 0.593, p < 0.01), and length of gestation (β = 0.164, p < 0.05) but not with maternal chemokines (β = 0.135, p = 0.528) or maternal pro-inflammatory cytokines (β = 0.083, p = 0.683). Additionally, we found that juvenile offspring peripheral cytokines (β = -0.389, p < 0.01) and chemokines (β = -0.298, p < 0.05) were associated with a maternal adiposity-induced decrease in maternal circulating chemokines during the third trimester (β = -0.426, p < 0.01). In summary, these data suggest that maternal diet and adiposity appear to directly predict offspring amygdala microglial counts while maternal adiposity influences offspring peripheral inflammatory outcomes via maternal inflammatory state.
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Affiliation(s)
| | - A J Mitchell
- Oregon Health & Science University, Department of Behavioral Neuroscience, USA; Oregon National Primate Research Center, Department of Neuroscience, USA
| | - Matthew Selby
- University of Oregon, Department of Human Physiology, USA
| | - Damien A Fair
- University of Minnesota School of Medicine, Masonic Institute of Child Development, USA
| | | | - Elinor L Sullivan
- University of Oregon, Department of Human Physiology, USA; Oregon Health & Science University, Department of Behavioral Neuroscience, USA; Oregon National Primate Research Center, Department of Neuroscience, USA; Oregon Health & Science University, Department of Psychiatry, USA.
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49
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Assessment of peri-implant parameters clinical and radiographic in obese and non-obese along with destructive pro-inflammatory cytokines IL-1β - and IL-6 treated with Photodynamic therapy. Photodiagnosis Photodyn Ther 2022; 39:102844. [PMID: 35381370 DOI: 10.1016/j.pdpdt.2022.102844] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 11/23/2022]
Abstract
AIM The present study aims to compare and evaluate radiographic and clinical parameters along with salivary proinflammatory cytokine profiles (IL-1β - and IL-6) in obese with peri-implantitis. MATERIAL AND METHODS Obese and non-obese participants in the present study were 80. The nonobese and obese participants were scrutinized based on inclusion and exclusion criteria. All participants both obese and non-obese were subjected to full mouth mechanical debridement (MD). A single session of Photodynamic therapy (PDT) was provided to all obese participants. Clinical peri-implant parameters peri-implant plaque index (PIPI), Peri-implant bleeding on probing (PIBoP), peri-implant probing depth (PIPD) were assessed at baseline, three months, and six months. Marginal bone loss (MBL) was also assessed. Enzyme-linked immunosorbent assay (ELISA) was used to check the levels of IL-1β - and IL-6 in unstimulated whole saliva samples. All the parameters were assessed using the Kruskal Wallis test and analysis of variance (ANOVA). Overall characteristics were assessed using descriptive statistics. SPSS software was used for statistical analysis. RESULTS Clinical baseline periodontal parameters PIPI, PIBoP, PIPD, and MBL in non-obese participants were significantly lower compared to group I obese participants at baseline (p < 0.05). At 3 months follow-up PDT adjunct to MD in group 1 obese participants PIPI and PIPD were significantly lower compared to MD alone in non-obese participants PIP1 and PIPD. At 6 months follow up, non-obese participants with peri-implantitis treated with MD demonstrated PIPI and PIPD significantly lower compared to obese participants treated with PDT adjunct to MD CONCLUSION: : PDT adjunctive to MD enhanced periodontal parameters i.e., peri-implant probing depth, peri-implant plaque index, and peri-implant bleeding on probing in obese with peri-implantitis. Moreover, obese individuals with peri-implantitis demonstrated high levels of proinflammatory cytokines IL-1β and IL-6 than control.
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50
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Salas-Venegas V, Flores-Torres RP, Rodríguez-Cortés YM, Rodríguez-Retana D, Ramírez-Carreto RJ, Concepción-Carrillo LE, Pérez-Flores LJ, Alarcón-Aguilar A, López-Díazguerrero NE, Gómez-González B, Chavarría A, Konigsberg M. The Obese Brain: Mechanisms of Systemic and Local Inflammation, and Interventions to Reverse the Cognitive Deficit. Front Integr Neurosci 2022; 16:798995. [PMID: 35422689 PMCID: PMC9002268 DOI: 10.3389/fnint.2022.798995] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 02/21/2022] [Indexed: 12/12/2022] Open
Abstract
Overweight and obesity are now considered a worldwide pandemic and a growing public health problem with severe economic and social consequences. Adipose tissue is an organ with neuroimmune-endocrine functions, which participates in homeostasis. So, adipocyte hypertrophy and hyperplasia induce a state of chronic inflammation that causes changes in the brain and induce neuroinflammation. Studies with obese animal models and obese patients have shown a relationship between diet and cognitive decline, especially working memory and learning deficiencies. Here we analyze how obesity-related peripheral inflammation can affect central nervous system physiology, generating neuroinflammation. Given that the blood-brain barrier is an interface between the periphery and the central nervous system, its altered physiology in obesity may mediate the consequences on various cognitive processes. Finally, several interventions, and the use of natural compounds and exercise to prevent the adverse effects of obesity in the brain are also discussed.
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Affiliation(s)
- Verónica Salas-Venegas
- Posgrado en Biología Experimental, Universidad Autónoma Metropolitana - Unidad Iztapalapa, Mexico City, Mexico
- Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City, Mexico
| | - Rosa Pamela Flores-Torres
- Posgrado en Biología Experimental, Universidad Autónoma Metropolitana - Unidad Iztapalapa, Mexico City, Mexico
- Departamento de Biología de la Reproducción, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Ciudad de México (CDMX), Mexico City, Mexico
| | - Yesica María Rodríguez-Cortés
- Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Diego Rodríguez-Retana
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Ricardo Jair Ramírez-Carreto
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Luis Edgar Concepción-Carrillo
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Laura Josefina Pérez-Flores
- Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City, Mexico
| | - Adriana Alarcón-Aguilar
- Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City, Mexico
| | - Norma Edith López-Díazguerrero
- Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City, Mexico
| | - Beatriz Gómez-González
- Departamento de Biología de la Reproducción, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Ciudad de México (CDMX), Mexico City, Mexico
| | - Anahí Chavarría
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Mina Konigsberg
- Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City, Mexico
- *Correspondence: Mina Konigsberg,
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