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Shantaram D, Hoyd R, Blaszczak AM, Antwi L, Jalilvand A, Wright VP, Liu J, Smith AJ, Bradley D, Lafuse W, Liu Y, Williams NF, Snyder O, Wheeler C, Needleman B, Brethauer S, Noria S, Renton D, Perry KA, Nagareddy P, Wozniak D, Mahajan S, Rana PSJB, Pietrzak M, Schlesinger LS, Spakowicz DJ, Hsueh WA. Obesity-associated microbiomes instigate visceral adipose tissue inflammation by recruitment of distinct neutrophils. Nat Commun 2024; 15:5434. [PMID: 38937454 PMCID: PMC11211470 DOI: 10.1038/s41467-024-48935-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/17/2024] [Indexed: 06/29/2024] Open
Abstract
Neutrophils are increasingly implicated in chronic inflammation and metabolic disorders. Here, we show that visceral adipose tissue (VAT) from individuals with obesity contains more neutrophils than in those without obesity and is associated with a distinct bacterial community. Exploring the mechanism, we gavaged microbiome-depleted mice with stool from patients with and without obesity during high-fat or normal diet administration. Only mice receiving high-fat diet and stool from subjects with obesity show enrichment of VAT neutrophils, suggesting donor microbiome and recipient diet determine VAT neutrophilia. A rise in pro-inflammatory CD4+ Th1 cells and a drop in immunoregulatory T cells in VAT only follows if there is a transient spike in neutrophils. Human VAT neutrophils exhibit a distinct gene expression pattern that is found in different human tissues, including tumors. VAT neutrophils and bacteria may be a novel therapeutic target for treating inflammatory-driven complications of obesity, including insulin resistance and colon cancer.
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Affiliation(s)
- Dharti Shantaram
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes & Metabolism, Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, 43210, USA
| | - Rebecca Hoyd
- Pelotonia Institute for Immuno-Oncology at The Ohio State University Comprehensive Cancer Center-Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Columbus, OH, 43210, USA
| | - Alecia M Blaszczak
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes & Metabolism, Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, 43210, USA
| | - Linda Antwi
- Pelotonia Institute for Immuno-Oncology at The Ohio State University Comprehensive Cancer Center-Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Columbus, OH, 43210, USA
| | - Anahita Jalilvand
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes & Metabolism, Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, 43210, USA
| | - Valerie P Wright
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes & Metabolism, Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, 43210, USA
| | - Joey Liu
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes & Metabolism, Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, 43210, USA
| | - Alan J Smith
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes & Metabolism, Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, 43210, USA
| | - David Bradley
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes & Metabolism, Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, 43210, USA
| | - William Lafuse
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, 43210, USA
| | - YunZhou Liu
- Pelotonia Institute for Immuno-Oncology at The Ohio State University Comprehensive Cancer Center-Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Columbus, OH, 43210, USA
| | - Nyelia F Williams
- Pelotonia Institute for Immuno-Oncology at The Ohio State University Comprehensive Cancer Center-Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Columbus, OH, 43210, USA
| | - Owen Snyder
- Pelotonia Institute for Immuno-Oncology at The Ohio State University Comprehensive Cancer Center-Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Columbus, OH, 43210, USA
| | - Caroline Wheeler
- Pelotonia Institute for Immuno-Oncology at The Ohio State University Comprehensive Cancer Center-Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Columbus, OH, 43210, USA
| | - Bradley Needleman
- Center for Minimally Invasive Surgery, Department of General Surgery, The Ohio State University, Columbus, OH, 43210, USA
| | - Stacy Brethauer
- Center for Minimally Invasive Surgery, Department of General Surgery, The Ohio State University, Columbus, OH, 43210, USA
| | - Sabrena Noria
- Center for Minimally Invasive Surgery, Department of General Surgery, The Ohio State University, Columbus, OH, 43210, USA
| | - David Renton
- Center for Minimally Invasive Surgery, Department of General Surgery, The Ohio State University, Columbus, OH, 43210, USA
| | - Kyle A Perry
- Center for Minimally Invasive Surgery, Department of General Surgery, The Ohio State University, Columbus, OH, 43210, USA
| | - Prabha Nagareddy
- Department of Internal Medicine, Cardiovascular Section University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, OK, 73117, USA
| | - Daniel Wozniak
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, 43210, USA
| | - Sahil Mahajan
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, 43210, USA
| | - Pranav S J B Rana
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, 43210, USA
| | - Maciej Pietrzak
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, 43210, USA
| | - Larry S Schlesinger
- Host Pathogen Interactions Program, Texas Biomedical Research Institute, San Antonio, TX, 78227, USA
| | - Daniel J Spakowicz
- Pelotonia Institute for Immuno-Oncology at The Ohio State University Comprehensive Cancer Center-Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Columbus, OH, 43210, USA.
| | - Willa A Hsueh
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes & Metabolism, Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, 43210, USA.
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2
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Khoury M, Guo Q, Furuta K, Correia C, Meroueh C, Kim Lee HS, Warasnhe K, Valenzuela-Pérez L, Mazar AP, Kim I, Noh YK, Holmes H, Romero MF, Sussman CR, Pavelko KD, Islam S, Bamidele AO, Hirsova P, Li H, Ibrahim SH. Glycogen synthase kinase 3 activity enhances liver inflammation in MASH. JHEP Rep 2024; 6:101073. [PMID: 38882600 PMCID: PMC11179260 DOI: 10.1016/j.jhepr.2024.101073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 03/12/2024] [Accepted: 03/20/2024] [Indexed: 06/18/2024] Open
Abstract
Background & Aims Metabolic dysfunction-associated steatohepatitis (MASH) is characterized by excessive circulating toxic lipids, hepatic steatosis, and liver inflammation. Monocyte adhesion to liver sinusoidal endothelial cells (LSECs) and transendothelial migration (TEM) are crucial in the inflammatory process. Under lipotoxic stress, LSECs develop a proinflammatory phenotype known as endotheliopathy. However, mediators of endotheliopathy remain unclear. Methods Primary mouse LSECs isolated from C57BL/6J mice fed chow or MASH-inducing diets rich in fat, fructose, and cholesterol (FFC) were subjected to multi-omics profiling. Mice with established MASH resulting from a choline-deficient high-fat diet (CDHFD) or FFC diet were also treated with two structurally distinct GSK3 inhibitors (LY2090314 and elraglusib [9-ING-41]). Results Integrated pathway analysis of the mouse LSEC proteome and transcriptome indicated that leukocyte TEM and focal adhesion were the major pathways altered in MASH. Kinome profiling of the LSEC phosphoproteome identified glycogen synthase kinase (GSK)-3β as the major kinase hub in MASH. GSK3β-activating phosphorylation was increased in primary human LSECs treated with the toxic lipid palmitate and in human MASH. Palmitate upregulated the expression of C-X-C motif chemokine ligand 2, intracellular adhesion molecule 1, and phosphorylated focal adhesion kinase, via a GSK3-dependent mechanism. Congruently, the adhesive and transendothelial migratory capacities of primary human neutrophils and THP-1 monocytes through the LSEC monolayer under lipotoxic stress were reduced by GSK3 inhibition. Treatment with the GSK3 inhibitors LY2090314 and elraglusib ameliorated liver inflammation, injury, and fibrosis in FFC- and CDHFD-fed mice, respectively. Immunophenotyping using cytometry by mass cytometry by time of flight of intrahepatic leukocytes from CDHFD-fed mice treated with elraglusib showed reduced infiltration of proinflammatory monocyte-derived macrophages and monocyte-derived dendritic cells. Conclusion GSK3 inhibition attenuates lipotoxicity-induced LSEC endotheliopathy and could serve as a potential therapeutic strategy for treating human MASH. Impact and Implications LSECs under lipotoxic stress in MASH develop a proinflammatory phenotype known as endotheliopathy, with obscure mediators and functional outcomes. The current study identified GSK3 as the major driver of LSEC endotheliopathy, examined its pathogenic role in myeloid cell-associated liver inflammation, and defined the therapeutic efficacy of pharmacological GSK3 inhibitors in murine MASH. This study provides preclinical data for the future investigation of GSK3 pharmacological inhibitors in human MASH. The results of this study are important to hepatologists, vascular biologists, and investigators studying the mechanisms of inflammatory liver disease and MASH, as well as those interested in drug development.
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Affiliation(s)
- Mireille Khoury
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Qianqian Guo
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Kunimaro Furuta
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Cristina Correia
- Center for Individualized Medicine, Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Chady Meroueh
- Division of Anatomic Pathology, Mayo Clinic, Rochester, MN, USA
| | - Hyun Se Kim Lee
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Khaled Warasnhe
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
| | | | | | - Iljung Kim
- Department of Computer Science, Hanyang University, Seoul, Republic of Korea
| | - Yung-Kyun Noh
- Department of Computer Science, Hanyang University, Seoul, Republic of Korea
- School of Computational Sciences, Korea Institute for Advanced Study, Seoul, Republic of Korea
| | - Heather Holmes
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Michael F. Romero
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | | | | | - Shahidul Islam
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Adebowale O. Bamidele
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
- Department of Immunology, Mayo Clinic, Rochester, MN, USA
| | - Petra Hirsova
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Hu Li
- Center for Individualized Medicine, Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Samar H. Ibrahim
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
- Division of Pediatric Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
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3
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Nagar N, Naidu G, Panda SK, Gulati K, Singh RP, Poluri KM. Elucidating the role of chemokines in inflammaging associated atherosclerotic cardiovascular diseases. Mech Ageing Dev 2024; 220:111944. [PMID: 38782074 DOI: 10.1016/j.mad.2024.111944] [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: 01/31/2024] [Revised: 05/08/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
Age-related inflammation or inflammaging is a critical deciding factor of physiological homeostasis during aging. Cardiovascular diseases (CVDs) are exquisitely associated with aging and inflammation and are one of the leading causes of high mortality in the elderly population. Inflammaging comprises dysregulation of crosstalk between the vascular and cardiac tissues that deteriorates the vasculature network leading to development of atherosclerosis and atherosclerotic-associated CVDs in elderly populations. Leukocyte differentiation, migration and recruitment holds a crucial position in both inflammaging and atherosclerotic CVDs through relaying the activity of an intricate network of inflammation-associated protein-protein interactions. Among these interactions, small immunoproteins such as chemokines play a major role in the progression of inflammaging and atherosclerosis. Chemokines are actively involved in lymphocyte migration and severe inflammatory response at the site of injury. They relay their functions via chemokine-G protein-coupled receptors-glycosaminoglycan signaling axis and is a principal part for the detection of age-related atherosclerosis and related CVDs. This review focuses on highlighting the detailed intricacies of the effects of chemokine-receptor interaction and chemokine oligomerization on lymphocyte recruitment and its evident role in clinical manifestations of atherosclerosis and related CVDs. Further, the role of chemokine mediated signaling for formulating next-generation therapeutics against atherosclerosis has also been discussed.
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Affiliation(s)
- Nupur Nagar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Goutami Naidu
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Santosh Kumar Panda
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Khushboo Gulati
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Ravindra Pal Singh
- Department of Industrial Biotechnology, Gujarat Biotechnology University, Gujarat International Finance Tec-City, Gandhinagar, Gujarat 382355, India
| | - Krishna Mohan Poluri
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India; Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India.
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4
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Wyczanska M, Thalmeier F, Keller U, Klaus R, Narasimhan H, Ji X, Schraml BU, Wackerbarth LM, Lange-Sperandio B. Interleukin-10 enhances recruitment of immune cells in the neonatal mouse model of obstructive nephropathy. Sci Rep 2024; 14:5495. [PMID: 38448513 PMCID: PMC10917785 DOI: 10.1038/s41598-024-55469-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 02/23/2024] [Indexed: 03/08/2024] Open
Abstract
Urinary tract obstruction during renal development leads to inflammation, leukocyte infiltration, tubular cell death, and interstitial fibrosis. Interleukin-10 (IL-10) is an anti-inflammatory cytokine, produced mainly by monocytes/macrophages and regulatory T-cells. IL-10 inhibits innate and adaptive immune responses. IL-10 has a protective role in the adult model of obstructive uropathy. However, its role in neonatal obstructive uropathy is still unclear which led us to study the role of IL-10 in neonatal mice with unilateral ureteral obstruction (UUO). UUO serves as a model for congenital obstructive nephropathies, a leading cause of kidney failure in children. Newborn Il-10-/- and C57BL/6 wildtype-mice (WT) were subjected to complete UUO or sham-operation on the 2nd day of life. Neonatal kidneys were harvested at day 3, 7, and 14 of life and analyzed for different leukocyte subpopulations by FACS, for cytokines and chemokines by Luminex assay and ELISA, and for inflammation, programmed cell death, and fibrosis by immunohistochemistry and western blot. Compared to WT mice, Il-10-/- mice showed reduced infiltration of neutrophils, CD11bhi cells, conventional type 1 dendritic cells, and T-cells following UUO. Il-10-/- mice with UUO also showed a reduction in pro-inflammatory cytokine and chemokine release compared to WT with UUO, mainly of IP-10, IL-1α, MIP-2α and IL-17A. In addition, Il-10-/- mice showed less necroptosis after UUO while the rate of apoptosis was not different. Finally, α-SMA and collagen abundance as readout for fibrosis were similar in Il-10-/- and WT with UUO. Surprisingly and in contrast to adult Il-10-/- mice undergoing UUO, neonatal Il-10-/- mice with UUO showed a reduced inflammatory response compared to respective WT control mice with UUO. Notably, long term changes such as renal fibrosis were not different between neonatal Il-10-/- and neonatal WT mice with UUO suggesting that IL-10 signaling is different in neonates and adults with UUO.
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Affiliation(s)
- Maja Wyczanska
- Department of Pediatrics, Dr. v. Hauner Children's Hospital, University Hospital, LMU Munich, Lindwurmstraße 4, 80337, Munich, Germany
| | - Franziska Thalmeier
- Department of Pediatrics, Dr. v. Hauner Children's Hospital, University Hospital, LMU Munich, Lindwurmstraße 4, 80337, Munich, Germany
| | - Ursula Keller
- Department of Pediatrics, Dr. v. Hauner Children's Hospital, University Hospital, LMU Munich, Lindwurmstraße 4, 80337, Munich, Germany
| | - Richard Klaus
- Department of Pediatrics, Dr. v. Hauner Children's Hospital, University Hospital, LMU Munich, Lindwurmstraße 4, 80337, Munich, Germany
| | - Hamsa Narasimhan
- Biomedical Center, Institute for Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, LMU Munich, 82152, Planegg-Martinsried, Germany
| | - Xingqi Ji
- Biomedical Center, Institute for Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, LMU Munich, 82152, Planegg-Martinsried, Germany
| | - Barbara U Schraml
- Biomedical Center, Institute for Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, LMU Munich, 82152, Planegg-Martinsried, Germany
| | - Lou M Wackerbarth
- Biomedical Center, Institute for Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, LMU Munich, 82152, Planegg-Martinsried, Germany
| | - Bärbel Lange-Sperandio
- Department of Pediatrics, Dr. v. Hauner Children's Hospital, University Hospital, LMU Munich, Lindwurmstraße 4, 80337, Munich, Germany.
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5
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Bradley D, Deng T, Shantaram D, Hsueh WA. Orchestration of the Adipose Tissue Immune Landscape by Adipocytes. Annu Rev Physiol 2024; 86:199-223. [PMID: 38345903 DOI: 10.1146/annurev-physiol-042222-024353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Obesity is epidemic and of great concern because of its comorbid and costly inflammatory-driven complications. Extensive investigations in mice have elucidated highly coordinated, well-balanced interactions between adipocytes and immune cells in adipose tissue that maintain normal systemic metabolism in the lean state, while in obesity, proinflammatory changes occur in nearly all adipose tissue immune cells. Many of these changes are instigated by adipocytes. However, less is known about obesity-induced adipose-tissue immune cell alterations in humans. Upon high-fat diet feeding, the adipocyte changes its well-known function as a metabolic cell to assume the role of an immune cell, orchestrating proinflammatory changes that escalate inflammation and progress during obesity. This transformation is particularly prominent in humans. In this review, we (a) highlight a leading and early role for adipocytes in promulgating inflammation, (b) discuss immune cell changes and the time course of these changes (comparing humans and mice when possible), and (c) note how reversing proinflammatory changes in most types of immune cells, including adipocytes, rescues adipose tissue from inflammation and obese mice from insulin resistance.
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Affiliation(s)
- David Bradley
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA;
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Pennsylvania State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA;
| | - Tuo Deng
- Second Xiangya Hospital, Central South University, Changsha, China
| | - Dharti Shantaram
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA;
| | - Willa A Hsueh
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA;
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Calvo-Pinilla E, Jiménez-Cabello L, Utrilla-Trigo S, Illescas-Amo M, Ortego J. Cytokine mRNA Expression Profile in Target Organs of IFNAR (-/-) Mice Infected with African Horse Sickness Virus. Int J Mol Sci 2024; 25:2065. [PMID: 38396742 PMCID: PMC10888608 DOI: 10.3390/ijms25042065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
African horse sickness (AHS) is a highly severe disease caused by a viral etiological agent, African horse sickness virus (AHSV). It is endemic in sub-Saharan Africa, while sporadic outbreaks have occurred in North Africa, Asia, and Europe, with the most recent cases in Thailand. AHSV transmission between equines occurs primarily by biting midges of the genus Culicoides, especially C. imicola, with a wide distribution globally. As research in horses is highly restricted due to a variety of factors, small laboratory animal models that reproduce clinical signs and pathology observed in natural infection of AHSV are highly needed. Here, we investigated the expression profile of several pro-inflammatory cytokines in target organs and serum of IFNAR (-/-) mice, to continue characterizing this established animal model and to go deep into the innate immune responses that are still needed.
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Affiliation(s)
- Eva Calvo-Pinilla
- Centro de Investigación en Sanidad Animal (CISA), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Científicas (INIA-CSIC), 28130 Valdeolmos, Spain; (L.J.-C.); (S.U.-T.); (M.I.-A.); (J.O.)
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7
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Zou Y, Yang X, Chen C, Ma H, Cao HW, Jiang J, Wei XY, Zhang XX. Transcriptomic profiling of long non-coding RNAs and messenger RNAs in the liver of mice during Toxoplasma gondii infection. Parasit Vectors 2024; 17:20. [PMID: 38229193 DOI: 10.1186/s13071-023-06053-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: 08/19/2023] [Accepted: 11/10/2023] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Toxoplasma gondii is an intracellular protozoan parasite that can infect a wide range of warm-blooded animals, including humans. It poses significant health risks, particularly in immunocompromised individuals and during pregnancy, leading to severe disease manifestations. The liver, being a crucial organ involved in immune response and metabolic regulation, plays a critical role in the host's defense against T. gondii infection. METHODS In this study, we utilized RNA sequencing to investigate the expression profiles of long non-coding RNAs (lncRNAs) and messenger RNAs (mRNAs) in the liver of mice infected with T. gondii. By employing this method, we obtained a comprehensive overview of the alterations in gene expression occurring in the liver during infection. RESULTS By comparing the infected groups to the control groups, we identified numerous differentially expressed lncRNAs DElncRNAs and DEmRNAs at two stages of infection. Specifically, at the acute infection stage, we found 628 DElncRNAs, and 6346 DEmRNAs. At the chronic infection stage, we identified 385 DElncRNAs and 2513 DEmRNAs. Furthermore, we identified 1959 commonly expressed DEmRNAs, including IL27, Nos2, and Cxcr2, across two infection stages. Enrichment and co-location analyses revealed pathways linked to immune and inflammatory responses during T. gondii infection. Notably, through co-location analysis, our analysis revealed several DElncRNAs, including Gm29156, Gm29157, and Gm28644, which are potentially implicated in the progression of liver inflammation induced by T. gondii. Additionally, functional enrichment analysis disclosed stage-specific characteristics of liver inflammation and immune response, alongside changes in metabolic regulation and immunosuppression pathways. CONCLUSIONS Our findings provide valuable insights into the expression patterns of lncRNAs and mRNAs in the liver at different stages of T. gondii infection. We identified potential regulatory factors and pathways implicated in liver inflammation, thereby enhancing our understanding of the molecular mechanisms underlying liver inflammation and immune responses during T. gondii infection. These findings could contribute to the development of targeted therapeutic strategies for liver inflammation in the context of T. gondii infection.
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Affiliation(s)
- Yang Zou
- School of Pharmacy, Yancheng Teachers University, Yancheng, Jiangsu Province, 224002, People's Republic of China
- School of Life Sciences, Baicheng Normal University, Baicheng, Jilin Province, 137000, People's Republic of China
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Xing Yang
- Department of Medical Microbiology and Immunology, School of Basic Medicine, Dali University, Dali, Yunnan Province, 671000, People's Republic of China
| | - Chao Chen
- College of Veterinary Medicine, Jilin Agricultural University, ChangchunJilin Province, 130118, People's Republic of China
| | - He Ma
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, People's Republic of China
| | - Hong-Wei Cao
- School of Pharmacy, Yancheng Teachers University, Yancheng, Jiangsu Province, 224002, People's Republic of China.
| | - Jing Jiang
- School of Life Sciences, Baicheng Normal University, Baicheng, Jilin Province, 137000, People's Republic of China.
| | - Xin-Yu Wei
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Heilongjiang Province163316, Daqing, People's Republic of China.
| | - Xiao-Xuan Zhang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, People's Republic of China
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8
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Sabikunnahar B, Caldwell S, Varnum S, Hogan T, Lahue KG, Rathkolb B, Gerlini R, Dragano NRV, Aguilar‐Pimentel A, Irmler M, Sanz‐Moreno A, da Silva‐Buttkus P, Beckers J, Wolf E, Gailus‐Durner V, Fuchs H, Hrabe de Angelis M, Ather JL, Poynter ME, Krementsov DN. LncRNA U90926 is dispensable for the development of obesity-associated phenotypes in vivo. Physiol Rep 2024; 12:e15901. [PMID: 38171546 PMCID: PMC10764201 DOI: 10.14814/phy2.15901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024] Open
Abstract
Obesity is a global health problem characterized by excessive fat accumulation, driven by adipogenesis and lipid accumulation. Long non-coding RNAs (lncRNAs) have recently been implicated in regulating adipogenesis and adipose tissue function. Mouse lncRNA U90926 was previously identified as a repressor of in vitro adipogenesis in 3T3-L1 preadipocytes. Consequently, we hypothesized that, in vivo, U90926 may repress adipogenesis, and hence its deletion would increase weight gain and adiposity. We tested the hypothesis by applying U90926-deficient (U9-KO) mice to a high-throughput phenotyping pipeline. Compared with WT, U9-KO mice showed no major differences across a wide range of behavioral, neurological, and other physiological parameters. In mice fed a standard diet, we have found no differences in obesity-related phenotypes, including weight gain, fat mass, and plasma concentrations of glucose, insulin, triglycerides, and free fatty acids, in U9-KO mice compared to WT. U90926 deficiency lacked a major effect on white adipose tissue morphology and gene expression profile. Furthermore, in mice fed a high-fat diet, we found increased expression of U90926 in adipose tissue stromal vascular cell fraction, yet observed no effect of U90926 deficiency on weight gain, fat mass, adipogenesis marker expression, and immune cell infiltration into the adipose tissue. These data suggest that the U90926 lacks an essential role in obesity-related phenotypes and adipose tissue biology in vivo.
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Affiliation(s)
- Bristy Sabikunnahar
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Sydney Caldwell
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Stella Varnum
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Tyler Hogan
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Karolyn G. Lahue
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Birgit Rathkolb
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
- German Center for Diabetes Research (DZD)NeuherbergGermany
- Institute of Molecular Animal Breeding and Biotechnology, Gene CenterLudwig‐Maximilians‐University MünchenMunichGermany
| | - Raffaele Gerlini
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Nathalia R. V. Dragano
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
- German Center for Diabetes Research (DZD)NeuherbergGermany
| | - Antonio Aguilar‐Pimentel
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Martin Irmler
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Adrián Sanz‐Moreno
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Patricia da Silva‐Buttkus
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Johannes Beckers
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
- German Center for Diabetes Research (DZD)NeuherbergGermany
- TUM School of Life SciencesTechnische Universität MünchenFreisingGermany
| | - Eckhard Wolf
- Institute of Molecular Animal Breeding and Biotechnology, Gene CenterLudwig‐Maximilians‐University MünchenMunichGermany
| | - Valerie Gailus‐Durner
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Helmut Fuchs
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Martin Hrabe de Angelis
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
- German Center for Diabetes Research (DZD)NeuherbergGermany
- TUM School of Life SciencesTechnische Universität MünchenFreisingGermany
| | | | | | - Dimitry N. Krementsov
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
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9
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He E, Chang K, Dong L, Jia M, Sun W, Cui H. Identification and Validation of CXCL2 as a Key Gene for Childhood Obesity. Biochem Genet 2023:10.1007/s10528-023-10566-8. [PMID: 38010448 DOI: 10.1007/s10528-023-10566-8] [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: 04/14/2023] [Accepted: 10/26/2023] [Indexed: 11/29/2023]
Abstract
This study aims to identify the key genes and their regulatory networks by bioinformatics, increasing understanding of childhood obesity. The data comes from the GEO and Immport database. The immune microenvironment was explored in GSE104815. Key genes were identified by intersection of DEGs with the immune gene set. Enrichment analysis revealed gene-related functions and correlation analysis explored the relationship. Regulatory networks were constructed based on miRcode, TarBase and TargetScan databases. GSE29718 was used to validate our findings. Intercellular communication and cell differentiation trends were further explored using single-cell data from GSE153643. Based on our research, the immune microenvironment in the obese group showed higher immune infiltration. We found 962 DEGs and CXCL2 was identified as the key gene. The co-regulatory network of lncRNA-miRNA-mRNA suggested that obtaining TM4SF19-AS1, GUSBP11, AC105020.1, LINC00189, COL4A2-AS2, VIPR1-AS1 and LINC00242 may regulate CXCL2 (r > 0.9 and P < 0.01). Differential expression of CXCL2 was validated in GSE29718 (P < 0.05) and CXCL2 was identified as a biomarker for childhood obesity (AUC = 0.885). GSVA enrichment analysis revealed many pathways of high group obtaining the TNF-α signaling via NF-κB pathway and interferon γ response pathway. In GSE153643, 11 cell types were identified and CXCL2 was highly expressed in monocyte, macrophage, endothelial cell and pericyte. In CXCL2 high expressing macrophages, there was a tendency for cells to polarize toward M1 macrophages (P < 0.05). In summary, we identified CXCL2 as a potential biomarker of childhood obesity. The development of childhood obesity may be associated with the activation of immune infiltration of macrophage M1 polarization by CXCL2 expression.
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Affiliation(s)
- Enyang He
- Tianjin Medical University, Tianjin, China
| | | | - Liang Dong
- Tianjin Children's Hospital, Tianjin, China
| | - Miao Jia
- Tianjin Medical University, Tianjin, China
| | | | - Hualei Cui
- Tianjin Children's Hospital, Tianjin, China.
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10
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Padmanabhan J, Chen K, Sivaraj D, Henn D, Kuehlmann BA, Kussie HC, Zhao ET, Kahn A, Bonham CA, Dohi T, Beck TC, Trotsyuk AA, Stern-Buchbinder ZA, Than PA, Hosseini HS, Barrera JA, Magbual NJ, Leeolou MC, Fischer KS, Tigchelaar SS, Lin JQ, Perrault DP, Borrelli MR, Kwon SH, Maan ZN, Dunn JCY, Nazerali R, Januszyk M, Prantl L, Gurtner GC. Allometrically scaling tissue forces drive pathological foreign-body responses to implants via Rac2-activated myeloid cells. Nat Biomed Eng 2023; 7:1419-1436. [PMID: 37749310 PMCID: PMC10651488 DOI: 10.1038/s41551-023-01091-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 08/02/2023] [Indexed: 09/27/2023]
Abstract
Small animals do not replicate the severity of the human foreign-body response (FBR) to implants. Here we show that the FBR can be driven by forces generated at the implant surface that, owing to allometric scaling, increase exponentially with body size. We found that the human FBR is mediated by immune-cell-specific RAC2 mechanotransduction signalling, independently of the chemistry and mechanical properties of the implant, and that a pathological FBR that is human-like at the molecular, cellular and tissue levels can be induced in mice via the application of human-tissue-scale forces through a vibrating silicone implant. FBRs to such elevated extrinsic forces in the mice were also mediated by the activation of Rac2 signalling in a subpopulation of mechanoresponsive myeloid cells, which could be substantially reduced via the pharmacological or genetic inhibition of Rac2. Our findings provide an explanation for the stark differences in FBRs observed in small animals and humans, and have implications for the design and safety of implantable devices.
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Affiliation(s)
- Jagannath Padmanabhan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Kellen Chen
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA.
| | - Dharshan Sivaraj
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA.
| | - Dominic Henn
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Britta A Kuehlmann
- Department of Plastic and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Hudson C Kussie
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Eric T Zhao
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Anum Kahn
- Cell Sciences Imaging Facility (CSIF), Beckman Center, Stanford University, Stanford, CA, USA
| | - Clark A Bonham
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Teruyuki Dohi
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Thomas C Beck
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Artem A Trotsyuk
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Zachary A Stern-Buchbinder
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Peter A Than
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Hadi S Hosseini
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Janos A Barrera
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Noah J Magbual
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Melissa C Leeolou
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Katharina S Fischer
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Seth S Tigchelaar
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - John Q Lin
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - David P Perrault
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Mimi R Borrelli
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Sun Hyung Kwon
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Zeshaan N Maan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - James C Y Dunn
- Division of Pediatric Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Rahim Nazerali
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Michael Januszyk
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Lukas Prantl
- Department of Plastic and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Geoffrey C Gurtner
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA.
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11
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Hu D, Mo X, Luo J, Wang F, Huang C, Xie H, Jin L. 17-DMAG ameliorates neuroinflammation and BBB disruption via SOX5 mediated PI3K/Akt pathway after intracerebral hemorrhage in rats. Int Immunopharmacol 2023; 123:110698. [PMID: 37517381 DOI: 10.1016/j.intimp.2023.110698] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/13/2023] [Accepted: 07/20/2023] [Indexed: 08/01/2023]
Abstract
Intracerebral hemorrhage (ICH) can result in secondary brain injury due to inflammation and breakdown of the blood-brain barrier (BBB), which are closely associated with patient prognosis. The potential of the heat shock protein 90 (Hsp90) inhibitor 17-DMAG in promoting neuroprotection has been observed in certain vascular diseases. However, the precise role of 17-DMAG treatment in ICH is not yet fully understood. In this study, we found that treatment with 17-DMAG (5 mg/kg) effectively reduced hematoma expansion and resulted in improved neurological outcomes. Meanwhile, the injection of 17-DMAG had a positive effect on reducing BBB disruption in rats with ICH. This effect was achieved by increasing the levels of BBB tight junction proteins (TJPs) such as zo-1, claudin-5, and occludin. As a result, the leakage of EB extravasation, brain edema and IgG in the peri-hematoma tissue were reduced. Furthermore, the injection of 17-DMAG decreased the infiltration of neutrophils into the brain tissues surrounding the hematoma in ICH rats and also reduced the production of proinflammatory cytokines IL-6 and TNF-α. Next, we used integrative mass spectrometry (MS) and molecular docking analysis to confirm that sex determining region Y-box protein 5 (SOX5) is a potential direct target of 17-DMAG in ICH. SOX5 encodes a positive regulator of the PI3K/Akt axis, and treatment with 17-DMAG resulted in a noticeable increase in SOX5 accumulation. To further investigate the role of SOX5, we employed virus-regulated SOX5 silencing and found that suppressing SOX5 blocked the ability of 17-DMAG to suppress neutrophil trafficking. Additionally, silencing SOX5 blocked the protective effects of 17-DMAG on the BBB by inhibiting PI3K, p-Akt, and BBB TJPs levels, which led to an increase in EB and IgG leakage in the peri-hematoma tissue after ICH. Similarly, when SOX5 was knocked down, the protective effects of 17-DMAG were lost. Overall, the results of our study indicate that the injection of 17-DMAG has the potential to mitigate neuroinflammation and prevent the disruption of the BBB caused by ICH, resulting in improved neurological outcomes in rats. These positive effects are attributed to the regulation of SOX5 and activation of the PI3K/Akt pathway. These findings highlight the possibility of targeting SOX5 and the PI3K/Akt pathway as a novel therapeutic approach for ICH.
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Affiliation(s)
- Di Hu
- Department of Neurology and Stroke Centre, the First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiaocong Mo
- Department of Oncology, the First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Jihang Luo
- Department of Oncology, the First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Fang Wang
- Department of Neurology and Stroke Centre, the First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Cheng Huang
- Department of Neurology and Stroke Centre, the First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Hesong Xie
- Department of Neurology and Stroke Centre, the First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Ling Jin
- Department of Oncology, the First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China.
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12
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Dai L, Liu Z, Guo L, Chai Y, Yang Y, Wang Y, Ma Y, Shi C, Zhang W. Multi-Tissue Transcriptome Study of Innate Immune Gene Expression Profiling Reveals Negative Energy Balance Altered the Defense and Promoted System Inflammation of Dairy Cows. Vet Sci 2023; 10:vetsci10020107. [PMID: 36851411 PMCID: PMC9959304 DOI: 10.3390/vetsci10020107] [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: 12/13/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
Negative energy balance (NEB) during the perinatal period leads to metabolic and immunological disorders in dairy cows, resulting in systemic responses and inflammation. The innate immune system is crucial for the host's protection and inflammatory response. However, systematic research is still lacking on how NEB affects the innate immune system to alter the 'host defense capability and inflammatory response. In this investigation, raw transcriptome data of adipose, blood, endometrial, hypothalamus, and liver tissues were downloaded from a public database, cleaned, aligned, quantified, and batch-corrected. The innate immune gene list was retrieved from innateDB, followed by the expression matrix of innate immune genes in various tissues for differential expression analysis, principle component analysis (PCA), and gene set enrichment analysis (GSEA). Under the effect of NEB, adipose tissue had the most differentially expressed genes, which were predominantly up-regulated, whereas blood GSEA had the most enriched biological processes, which were predominantly down-regulated. The gene sets shared by different tissues, which are predominantly involved in biological processes associated with defense responses and inflammation, were dramatically down-regulated in endometrial tissues and highly up-regulated in other tissues. Under the impact of NEB, LBP, PTX3, S100A12, and LCN2 play essential roles in metabolism and immunological control. In conclusion, NEB can downregulate the defensive response of innate immune genes in endometrial, upregulate the immune and inflammatory response of other tissues, activate the host defense response, and increase the systemic inflammatory response. The analysis of the effects of NEB on innate immune genes from the multiple tissues analysis provides new insights into the crosstalk between metabolism and immunity and also provides potential molecular targets for disease diagnosis and disease resistance breeding in dairy cows.
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Affiliation(s)
- Lingli Dai
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
- Veterinary Research Institute, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, China
| | - Zaixia Liu
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Lili Guo
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Yuan Chai
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Yanda Yang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Yu Wang
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Yanfen Ma
- Veterinary Research Institute, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, China
- School of Agriculture, Ningxia University, Yinchuan 750021, China
| | - Caixia Shi
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
- Correspondence: (C.S.); (W.Z.)
| | - Wenguang Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
- Inner Mongolia Engineering Research Center of Genomic Big Data for Agriculture, Hohhot 010018, China
- College of Life Science, Inner Mongolia Agricultural University, Hohhot 010018, China
- Correspondence: (C.S.); (W.Z.)
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13
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Liu XH, Zhang Y, Chang L, Wei Y, Huang N, Zhou JT, Cheng C, Zhang J, Xu J, Li Z, Li X. Apolipoprotein A-IV reduced metabolic inflammation in white adipose tissue by inhibiting IKK and JNK signaling in adipocytes. Mol Cell Endocrinol 2023; 559:111813. [PMID: 36341820 DOI: 10.1016/j.mce.2022.111813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/13/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
Apolipoprotein A-IV (ApoA-IV) plays a role in satiation and serum lipid transport. In diet-induced obesity (DIO) C57BL/6J mice, ApoA-IV deficiency induced in ApoA-IV-/-knock-out (KO mice) resulted in increased bodyweight, insulin resistance (IR) and plasma free fatty acid (FFA), which was partially reversed by stable ApoA-IV-green fluorescent protein (KO-A4-GFP) transfection in KO mice. DIO KO mice exhibited increased M1 macrophages in epididymal white adipose tissue (eWAT) as well as in the blood. Based on RNA-sequencing analyses, cytokine-cytokine receptor interactions, T cell and B cell receptors, and especially IL-17 and TNF-α, were up-regulated in eWAT of DIO ApoA-IV KO compared with WT mice. Supplemented ApoA-IV suppressed lipopolysaccharide (LPS)-induced IKK and JNK phosphorylation in Raw264.7 macrophage cell culture assays. When the culture medium was supplemented to 3T3-L1 adipocytes they exhibited an increased sensitivity to insulin. ApoA-IV protects against obesity-associated metabolic inflammation mainly through suppression in M1 macrophages of eWAT, IL17-IKK and IL17-JNK activity.
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Affiliation(s)
- Xiao-Huan Liu
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, the Second Affiliated Hospital, Xi'an Jiaotong University, Western China Science & Technology Innovation Harbour, Xi'an, China
| | - Yupeng Zhang
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, the Second Affiliated Hospital, Xi'an Jiaotong University, Western China Science & Technology Innovation Harbour, Xi'an, China; Department of Gastrointestinal Surgery, the Affiliated Taian City Central Hospital, Qingdao University, Taian, China
| | - Liao Chang
- Bio-evidence Science Academy, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Sciences, Western China Science & Technology Innovation Harbour, Xi'an, China
| | - Yang Wei
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, the Second Affiliated Hospital, Xi'an Jiaotong University, Western China Science & Technology Innovation Harbour, Xi'an, China
| | - Na Huang
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, the Second Affiliated Hospital, Xi'an Jiaotong University, Western China Science & Technology Innovation Harbour, Xi'an, China
| | - Jin-Ting Zhou
- Bio-evidence Science Academy, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Sciences, Western China Science & Technology Innovation Harbour, Xi'an, China
| | - Cheng Cheng
- Bio-evidence Science Academy, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Sciences, Western China Science & Technology Innovation Harbour, Xi'an, China
| | - Jianbo Zhang
- Bio-evidence Science Academy, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Sciences, Western China Science & Technology Innovation Harbour, Xi'an, China
| | - Jing Xu
- Division of Endocrinology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zongfang Li
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, the Second Affiliated Hospital, Xi'an Jiaotong University, Western China Science & Technology Innovation Harbour, Xi'an, China.
| | - Xiaoming Li
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, the Second Affiliated Hospital, Xi'an Jiaotong University, Western China Science & Technology Innovation Harbour, Xi'an, China.
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14
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Probiotic Bifidobacterium longum subsp. longum Protects against Cigarette Smoke-Induced Inflammation in Mice. Int J Mol Sci 2022; 24:ijms24010252. [PMID: 36613693 PMCID: PMC9820259 DOI: 10.3390/ijms24010252] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022] Open
Abstract
Bifidobacterium are prominent gut commensals that produce the short-chain fatty acid (SCFA) acetate, and they are often used as probiotics. Connections between the gut and the lung, termed the gut-lung axis, are regulated by the microbiome. The gut-lung axis is increasingly implicated in cigarette smoke-induced diseases, and cigarette smoke exposure has been associated with depletion of Bifidobacterium species. In this study, we assessed the impact of acetate-producing Bifidobacterium longum subsp. longum (WT) and a mutant strain with an impaired acetate production capacity (MUT) on cigarette smoke-induced inflammation. The mice were treated with WT or MUT B. longum subsp. longum and exposed to cigarette smoke for 8 weeks before assessments of lung inflammation, lung tissue gene expression and cecal SCFAs were performed. Both strains of B. longum subsp. longum reduced lung inflammation, inflammatory cytokine expression and adhesion factor expression and alleviated cigarette smoke-induced depletion in caecum butyrate. Thus, the probiotic administration of B. longum subsp. longum, irrespective of its acetate-producing capacity, alleviated cigarette smoke-induced inflammation and the depletion of cecal butyrate levels.
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15
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Chopra A, Gupta A. Skin as an immune organ and the site of biomimetic, non-invasive vaccination. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2022. [DOI: 10.1016/j.medntd.2022.100196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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16
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Sputnik-V reactogenicity and immunogenicity in the blood and mucosa: a prospective cohort study. Sci Rep 2022; 12:13207. [PMID: 35915123 PMCID: PMC9342835 DOI: 10.1038/s41598-022-17514-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 07/26/2022] [Indexed: 12/30/2022] Open
Abstract
Sputnik-V (Gam-COVID-Vac) is a heterologous, recombinant adenoviral (rAdv) vector-based, COVID-19 vaccine now used in > 70 countries. Yet there is a shortage of data on this vaccine's performance in diverse populations. Here, we performed a prospective cohort study to assess the reactogenicity and immunologic outcomes of Sputnik-V vaccination in Kazakhstan. COVID-19-free participants (n = 82 at baseline) were followed at day 21 after Sputnik-V dose 1 (rAd5) and dose 2 (rAd26). Self-reported local and systemic adverse events were captured using questionnaires. Blood and nasopharyngeal swabs were collected to perform SARS-CoV-2 diagnostic and immunologic assays. We observed that most of the reported adverse events were mild-to-moderate injection site or systemic reactions, no severe or potentially life-threatening conditions were reported, and dose 1 appeared to be more reactogenic than dose 2. The seroconversion rate was 97% post-dose 1, remaining the same post-dose 2. The proportion of participants with detectable virus neutralization was 83% post-dose 1, increasing to 98% post-dose 2, with the largest relative increase observed in participants without prior COVID-19 exposure. Dose 1 boosted nasal S-IgG and S-IgA, while the boosting effect of dose 2 on mucosal S-IgG, but not S-IgA, was only observed in subjects without prior COVID-19. Systemically, vaccination reduced serum levels of growth regulated oncogene (GRO), which correlated with an elevation in blood platelet count. Overall, Sputnik-V dose 1 elicited both blood and mucosal SARS-CoV-2 immunity, while the immune boosting effect of dose 2 was minimal. Thus, adjustments to the current vaccine dosing regimen are necessary to optimize immunization efficacy and cost-effectiveness. While Sputnik-V reactogenicity is similar to that of other COVID-19 vaccines, the induced alterations to the GRO/platelet axis warrant investigation of the vaccine’s effects on systemic immunology.
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17
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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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18
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Chronic obstructive pulmonary disease and atherosclerosis: common mechanisms and novel therapeutics. Clin Sci (Lond) 2022; 136:405-423. [PMID: 35319068 PMCID: PMC8968302 DOI: 10.1042/cs20210835] [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: 11/17/2021] [Revised: 02/17/2022] [Accepted: 03/07/2022] [Indexed: 12/17/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and atherosclerosis are chronic irreversible diseases, that share a number of common causative factors including cigarette smoking. Atherosclerosis drastically impairs blood flow and oxygen availability to tissues, leading to life-threatening outcomes including myocardial infarction (MI) and stroke. Patients with COPD are most likely to die as a result of a cardiovascular event, with 30% of all COPD-related deaths being attributed to cardiovascular disease (CVD). Both atherosclerosis and COPD involve significant local (i.e. lung, vasculature) and systemic inflammation and oxidative stress, of which current pharmacological treatments have limited efficacy, hence the urgency for the development of novel life-saving therapeutics. Currently these diseases must be treated individually, with no therapies available that can effectively reduce the likelihood of comorbid CVD other than cessation of cigarette smoking. In this review, the important mechanisms that drive atherosclerosis and CVD in people with COPD are explained and we propose that modulation of both the oxidative stress and the inflammatory burden will provide a novel therapeutic strategy to treat both the pulmonary and systemic manifestations related to these diseases.
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Jin Y, Kim D, Choi YJ, Song I, Chung YS. Gene Network Analysis for Osteoporosis, Sarcopenia, Diabetes, and Obesity in Human Mesenchymal Stromal Cells. Genes (Basel) 2022; 13:genes13030459. [PMID: 35328013 PMCID: PMC8953569 DOI: 10.3390/genes13030459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 02/01/2023] Open
Abstract
The systemic gene interactions that occur during osteoporosis and their underlying mechanisms remain to be determined. To this end, mesenchymal stromal cells (MSCs) were analyzed from bone marrow samples collected from healthy individuals (n = 5) and patients with osteoporosis (n = 5). A total of 120 osteoporosis-related genes were identified using RNA-sequencing (RNA-seq) and Ingenuity Pathway Analysis (IPA) software. In order to analyze these genes, we constructed a heatmap of one-way hierarchical clustering and grouped the gene expression patterns of the samples. The MSCs from one control participant showed a similar expression pattern to that observed in the MSCs of three patients with osteoporosis, suggesting that the differentiating genes might be important genetic determinants of osteoporosis. Then, we selected the top 38 genes based on fold change and expression, excluding osteoporosis-related genes from the control participant. We identified a network among the top 38 genes related to osteoblast and osteoclast differentiation, bone remodeling, osteoporosis, and sarcopenia using the Molecule Activity Predictor program. Among them, 25 genes were essential systemic genes involved in osteoporosis. Furthermore, we identified 24 genes also associated with diabetes and obesity, among which 10 genes were involved in a network related to bone and energy metabolism. The study findings may have implications for the treatment and prevention of osteoporosis.
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Affiliation(s)
- Yilan Jin
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon 16499, Korea; (Y.J.); (Y.J.C.); (I.S.)
- Ajou Institute on Aging, Ajou University Medical Center, Suwon 16499, Korea
| | - Dowan Kim
- Ajou Translational OMICS Center, Ajou University School of Medicine, Suwon 16499, Korea;
- Department of Medical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea
| | - Yong Jun Choi
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon 16499, Korea; (Y.J.); (Y.J.C.); (I.S.)
- Ajou Institute on Aging, Ajou University Medical Center, Suwon 16499, Korea
| | - Insun Song
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon 16499, Korea; (Y.J.); (Y.J.C.); (I.S.)
- Ajou Institute on Aging, Ajou University Medical Center, Suwon 16499, Korea
| | - Yoon-Sok Chung
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon 16499, Korea; (Y.J.); (Y.J.C.); (I.S.)
- Ajou Institute on Aging, Ajou University Medical Center, Suwon 16499, Korea
- Correspondence:
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20
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Whole Body Ip6k1 Deletion Protects Mice from Age-Induced Weight Gain, Insulin Resistance and Metabolic Dysfunction. Int J Mol Sci 2022; 23:ijms23042059. [PMID: 35216174 PMCID: PMC8878859 DOI: 10.3390/ijms23042059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/05/2022] [Accepted: 02/10/2022] [Indexed: 12/21/2022] Open
Abstract
(1) Background: We previously demonstrated that disruption of IP6K1 improves metabolism, protecting mice from high-fat diet-induced obesity, insulin resistance, and non-alcoholic fatty liver disease and steatohepatitis. Age-induced metabolic dysfunction is a major risk factor for metabolic diseases. The involvement of IP6K1 in this process is unknown. (2) Methods: Here, we compared body and fat mass, insulin sensitivity, energy expenditure and serum-, adipose tissue- and liver-metabolic parameters of chow-fed, aged, wild type (aWT) and whole body Ip6k1 knockout (aKO) mice. (3) Results: IP6K1 was upregulated in the adipose tissue and liver of aWT mice compared to young WT mice. Moreover, Ip6k1 deletion blocked age-induced increase in body- and fat-weight and insulin resistance in mice. aKO mice oxidized carbohydrates more efficiently. The knockouts displayed reduced levels of serum insulin, triglycerides, and non-esterified fatty acids. Ip6k1 deletion partly protected age-induced decline of the thermogenic uncoupling protein UCP1 in inguinal white adipose tissue. Targets inhibited by IP6K1 activity such as the insulin sensitivity- and energy expenditure-inducing protein kinases, protein kinase B (PKB/Akt) and AMP-activated protein kinase (AMPK), were activated in the adipose tissue and liver of aKO mice. (4) Conclusions: Ip6k1 deletion maintains healthy metabolism in aging and thus, targeting this kinase may delay the development of age-induced metabolic dysfunction.
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21
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The NEDD8-activating enzyme inhibitor MLN4924 reduces ischemic brain injury in mice. Proc Natl Acad Sci U S A 2022; 119:2111896119. [PMID: 35101976 PMCID: PMC8833173 DOI: 10.1073/pnas.2111896119] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2021] [Indexed: 02/03/2023] Open
Abstract
Ischemic stroke is a leading cause of death and disability with limited therapies. Neuronal precursor cell-expressed developmentally downregulated protein 8 (NEDD8) is a ubiquitin-like protein that is involved in protein neddylation. The first-in-class anticancer agent called MLN4924 plays a crucial role in suppressing tumorigenesis and attenuating inflammatory responses due to specifically inhibiting NEDD8-activating enzyme. Here, we investigated the potential protective role of MLN4924 after experimental stroke. We showed that the neddylation pathway is overactivated in the brain following cerebral ischemia. Inhibition of neddylation by MLN4924 protects the brain against ischemic injury by attenuating neutrophil extravasation and maintaining blood–brain barrier integrity. Our findings provide insights into the promising treatment with neddylation inhibition for ischemic brain injury. Blood–brain barrier (BBB) breakdown and inflammation occurring at the BBB have a key, mainly a deleterious role in the pathophysiology of ischemic stroke. Neddylation is a ubiquitylation-like pathway that is critical in various cellular functions by conjugating neuronal precursor cell-expressed developmentally down-regulated protein 8 (NEDD8) to target proteins. However, the roles of neddylation pathway in ischemic stroke remain elusive. Here, we report that NEDD8 conjugation increased during acute phase after ischemic stroke and was present in intravascular and intraparenchymal neutrophils. Inhibition of neddylation by MLN4924, also known as pevonedistat, inactivated cullin-RING E3 ligase (CRL), and reduced brain infarction and improved functional outcomes. MLN4924 treatment induced the accumulation of the CRL substrate neurofibromatosis 1 (NF1). By using virus-mediated NF1 silencing, we show that NF1 knockdown abolished MLN4924-dependent inhibition of neutrophil trafficking. These effects were mediated through activation of endothelial P-selectin and intercellular adhesion molecule-1 (ICAM-1), and blocking antibodies against P-selectin or anti–ICAM-1 antibodies reversed NF1 silencing-induced increase in neutrophil infiltration in MLN4924-treated mice. Furthermore, we found that NF1 silencing blocked MLN4924-afforded BBB protection and neuroprotection through activation of protein kinase C δ (PKCδ), myristoylated alanine-rich C-kinase substrate (MARCKS), and myosin light chain (MLC) in cerebral microvessels after ischemic stroke, and treatment of mice with the PKCδ inhibitor rottlerin reduced this increased BBB permeability. Our study demonstrated that increased neddylation promoted neutrophil trafficking and thus exacerbated injury of the BBB and stroke outcomes. We suggest that the neddylation inhibition may be beneficial in ischemic stroke.
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22
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Verdú E, Homs J, Boadas-Vaello P. Physiological Changes and Pathological Pain Associated with Sedentary Lifestyle-Induced Body Systems Fat Accumulation and Their Modulation by Physical Exercise. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182413333. [PMID: 34948944 PMCID: PMC8705491 DOI: 10.3390/ijerph182413333] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/02/2021] [Accepted: 12/10/2021] [Indexed: 12/11/2022]
Abstract
A sedentary lifestyle is associated with overweight/obesity, which involves excessive fat body accumulation, triggering structural and functional changes in tissues, organs, and body systems. Research shows that this fat accumulation is responsible for several comorbidities, including cardiovascular, gastrointestinal, and metabolic dysfunctions, as well as pathological pain behaviors. These health concerns are related to the crosstalk between adipose tissue and body systems, leading to pathophysiological changes to the latter. To deal with these health issues, it has been suggested that physical exercise may reverse part of these obesity-related pathologies by modulating the cross talk between the adipose tissue and body systems. In this context, this review was carried out to provide knowledge about (i) the structural and functional changes in tissues, organs, and body systems from accumulation of fat in obesity, emphasizing the crosstalk between fat and body tissues; (ii) the crosstalk between fat and body tissues triggering pain; and (iii) the effects of physical exercise on body tissues and organs in obese and non-obese subjects, and their impact on pathological pain. This information may help one to better understand this crosstalk and the factors involved, and it could be useful in designing more specific training interventions (according to the nature of the comorbidity).
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Affiliation(s)
- Enrique Verdú
- Research Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department of Medical Sciences, University of Girona, 17003 Girona, Spain;
- Correspondence: (E.V.); (P.B.-V.)
| | - Judit Homs
- Research Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department of Medical Sciences, University of Girona, 17003 Girona, Spain;
- Department of Physical Therapy, EUSES-University of Girona, 17190 Salt, Spain
| | - Pere Boadas-Vaello
- Research Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department of Medical Sciences, University of Girona, 17003 Girona, Spain;
- Correspondence: (E.V.); (P.B.-V.)
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23
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Chen J, Fan ZX, Zhu DC, Guo YL, Ye K, Dai D, Guo Z, Hu ZQ, Miao Y, Qu Q. Emerging Role of Dermal White Adipose Tissue in Modulating Hair Follicle Development During Aging. Front Cell Dev Biol 2021; 9:728188. [PMID: 34722509 PMCID: PMC8554130 DOI: 10.3389/fcell.2021.728188] [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: 06/21/2021] [Accepted: 09/01/2021] [Indexed: 11/24/2022] Open
Abstract
Hair follicle stem cells are extensively reprogrammed by the aging process, manifesting as diminished self-renewal and delayed responsiveness to activating cues, orchestrated by both intrinsic microenvironmental and extrinsic macroenvironmental regulators. Dermal white adipose tissue (dWAT) is one of the peripheral tissues directly adjacent to hair follicles (HFs) and acts as a critical macroenvironmental niche of HF. dWAT directly contributes to HF aging by paracrine signal secretion. However, the altered interrelationship between dWAT and HF with aging has not been thoroughly understood. Here, through microdissection, we separated dWAT from the skin of aged mice (18 months) and young mice (2 months) in telogen and depilation-induced anagen for transcriptome comparing. Notably, compared with young dWAT, aberrant inflammatory regulators were recapitulated in aging dWAT in telogen, including substantial overexpressed inflammatory cytokines, matrix metalloproteinases, and prostaglandin members. Nonetheless, with anagen initiation, inflammation programs were mostly abolished in aging dWAT, and instead of which, impaired collagen biosynthesis, angiogenesis, and melanin synthesis were identified. Furthermore, we confirmed the inhibitory effect on hair growth of CXCL1, one of the most significantly upregulated inflammation cytokines in aging dWAT. Besides this, we also identified the under-expressed genes related to Wnt signaling fibroblast growth factor family members and increased BMP signaling in aging dWAT, further unraveling the emerging role of dWAT in aging HFs malfunction. Finally, we proved that relieving inflammation of aging dWAT by injecting high-level veratric acid stimulated HF regenerative behavior in aged mice. Concomitantly, significantly decreased TNF-a, CCL2, IL-5, CSF2, and increased IL10 in dWAT was identified. Overall, the results elaborated on the complex physiological cycling changes of dWAT during aging, providing a basis for the potential regulatory effect of dWAT on aging HFs.
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Affiliation(s)
- Jian Chen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Zhe-Xiang Fan
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - De-Cong Zhu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Yi-Long Guo
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Ke Ye
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Damao Dai
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Zhi Guo
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Zhi-Qi Hu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Yong Miao
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Qian Qu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
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Yoon YS, Liu W, Van de Velde S, Matsumura S, Wiater E, Huang L, Montminy M. Activation of the adipocyte CREB/CRTC pathway in obesity. Commun Biol 2021; 4:1214. [PMID: 34686752 PMCID: PMC8536733 DOI: 10.1038/s42003-021-02735-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 09/21/2021] [Indexed: 11/09/2022] Open
Abstract
Obesity is a major risk factor for the development of type II diabetes. Increases in adipose tissue mass trigger insulin resistance via the release of pro-inflammatory cytokines from adipocytes and macrophages. CREB and the CRTC coactivators have been found to promote insulin resistance in obesity, although the mechanism is unclear. Here we show that high fat diet feeding activates the CREB/CRTC pathway in adipocytes by decreasing the expression of SIK2, a Ser/Thr kinase that phosphorylates and inhibits CRTCs. SIK2 levels are regulated by the adipogenic factor C/EBPα, whose expression is reduced in obesity. Exposure to PPARγ agonist rescues C/EBPα expression and restores SIK2 levels. CRTC2/3 promote insulin resistance via induction of the chemokines CXCL1/2. Knockout of CRTC2/3 in adipocytes reduces CXCL1/2 expression and improves insulin sensitivity. As administration of CXCL1/2 reverses salutary effects of CRTC2/3 depletion, our results demonstrate the importance of the CREB/CRTC pathway in modulating adipose tissue function.
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Affiliation(s)
- Young-Sil Yoon
- Peptide Biology Laboratories, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Weiyi Liu
- Peptide Biology Laboratories, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Sam Van de Velde
- Peptide Biology Laboratories, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Shigenobu Matsumura
- Department of Clinical Nutrition, Osaka Prefecture University, Habikino, Habikino City, Osaka, Japan
| | - Ezra Wiater
- Peptide Biology Laboratories, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Ling Huang
- The Razavi Newman Integrative Genomics and Bioinformatics Core, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Marc Montminy
- Peptide Biology Laboratories, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA.
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25
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Cao S, Liu M, Sehrawat TS, Shah VH. Regulation and functional roles of chemokines in liver diseases. Nat Rev Gastroenterol Hepatol 2021; 18:630-647. [PMID: 33976393 PMCID: PMC9036964 DOI: 10.1038/s41575-021-00444-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/18/2021] [Indexed: 02/03/2023]
Abstract
Inflammation is a major contributor to the pathogenesis of almost all liver diseases. Low-molecular-weight proteins called chemokines are the main drivers of liver infiltration by immune cells such as macrophages, neutrophils and others during an inflammatory response. During the past 25 years, tremendous progress has been made in understanding the regulation and functions of chemokines in the liver. This Review summarizes three main aspects of the latest advances in the study of chemokine function in liver diseases. First, we provide an overview of chemokine biology, with a particular focus on the genetic and epigenetic regulation of chemokine transcription as well as on the cell type-specific production of chemokines by liver cells and liver-associated immune cells. Second, we highlight the functional roles of chemokines in liver homeostasis and their involvement in progression to disease in both human and animal models. Third, we discuss the therapeutic opportunities targeting chemokine production and signalling in the treatment of liver diseases, such as alcohol-associated liver disease and nonalcoholic steatohepatitis, including the relevant preclinical studies and ongoing clinical trials.
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26
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Sexual Dimorphism in Changes That Occur in Tissues, Organs and Plasma during the Early Stages of Obesity Development. BIOLOGY 2021; 10:biology10080717. [PMID: 34439950 PMCID: PMC8389333 DOI: 10.3390/biology10080717] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/07/2021] [Accepted: 07/15/2021] [Indexed: 02/06/2023]
Abstract
Simple Summary Obesity is a global health concern with numerous associated comorbidities. This study aims to provide a qualitative assessment of changes that may occur in tissues, organs, and plasma during the early stages of obesity development and how it may differ between male and female using a mouse model of diet induced obesity. Notable changes, not previously reported, were observed in the lungs, liver, kidney, spleen, and heart, which may suggest early signs of developing an obesity associated comorbidity. Leptin levels with notable sexual dimorphisms changes significantly in early obesity and was observed to also correlate with insulin levels. Interestingly, males and females showed different inflammatory cytokine profiles with females exhibiting a more anti-inflammatory cytokine profile, notably the IL-6/IL-10 axis of cytokine regulation may account for their significantly lower weight gain compared to males. Thus, this study provides valuable information which may aid in understanding the development of some obesity associated diseases at the early stages and could assist in developing effective intervention strategies in males and females. Abstract Despite obesity being a major health concern, information on the early clinical changes that occur in plasma and tissues during obesity development and the influence of sexual dimorphism is lacking. This study investigated changes in tissue and organ histology, macrophage infiltration, plasma hormones, lipid, and chemokine and cytokine levels in mice fed on a high fat diet for 11-weeks. An increase in adiposity, accompanied by adipocyte hypertrophy and macrophage infiltration, was observed to be significantly greater in males than females. Important changes in cell morphology and histology were noted in the lungs, liver, kidney, spleen, and heart, which may indicate early signs for developing obesity associated comorbidities. Leptin, but not adiponectin, was significantly altered during weight gain. Additionally, leptin, but not adiposity, correlated with insulin levels. Interestingly, GM-CSF, TNFα, and IL-12 (p70) were not produced in the early stages of obesity development. Meanwhile, the production of MCP-1, IP-10, RANTES, IL-10, IL-6, KC, and IL-9 were greatly influenced by sexual dimorphism. Importantly, IL-6/IL-10 axis of anti-inflammatory cytokine regulation was observed only in females and may account for their significantly lower weight gain compared to males. This study provides new knowledge on how sexual dimorphism may influence the development of obesity and associated comorbidities.
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Blaszczak AM, Jalilvand A, Hsueh WA. Adipocytes, Innate Immunity and Obesity: A Mini-Review. Front Immunol 2021; 12:650768. [PMID: 34248937 PMCID: PMC8264354 DOI: 10.3389/fimmu.2021.650768] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 04/28/2021] [Indexed: 12/12/2022] Open
Abstract
The role of adipose tissue (AT) inflammation in obesity and its multiple related-complications is a rapidly expanding area of scientific interest. Within the last 30 years, the role of the adipocyte as an endocrine and immunologic cell has been progressively established. Like the macrophage, the adipocyte is capable of linking the innate and adaptive immune system through the secretion of adipokines and cytokines; exosome release of lipids, hormones, and microRNAs; and contact interaction with other immune cells. Key innate immune cells in AT include adipocytes, macrophages, neutrophils, and innate lymphoid cells type 2 (ILC2s). The role of the innate immune system in promoting adipose tissue inflammation in obesity will be highlighted in this review. T cells and B cells also play important roles in contributing to AT inflammation and are discussed in this series in the chapter on adaptive immunity.
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Affiliation(s)
- Alecia M Blaszczak
- Hsueh Laboratory, The Ohio State University Wexner Medical Center, Diabetes and Metabolism Research Center, Columbus, OH, United States
| | - Anahita Jalilvand
- Hsueh Laboratory, The Ohio State University Wexner Medical Center, Diabetes and Metabolism Research Center, Columbus, OH, United States
| | - Willa A Hsueh
- Hsueh Laboratory, The Ohio State University Wexner Medical Center, Diabetes and Metabolism Research Center, Columbus, OH, United States
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28
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Whitson RH, Li SL, Zhang G, Larson GP, Itakura K. Mice with Fabp4-Cre ablation of Arid5b are resistant to diet-induced obesity and hepatic steatosis. Mol Cell Endocrinol 2021; 528:111246. [PMID: 33757861 PMCID: PMC8956154 DOI: 10.1016/j.mce.2021.111246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/19/2021] [Accepted: 03/15/2021] [Indexed: 11/29/2022]
Abstract
Mice with global deletion of Arid5b expression are lean and resistant to diet-induced obesity, and Arid5b is required for adipogenesis in a variety of in vitro models. To determine whether the lean phenotype of Arid5b-/- mice can be explained by its absence in adipose tissues, we generated mice with Fabp4-mediated ablation of Arid5b. Arid5b expression was ablated in adipocytes, from Fabp4-CREpos; Arid5bFLOX/FLOX (FSKO) mice. FSKO mice were not lean when maintained on standard chow, but males were resistant to weight gains when placed on high-fat diets (HFD). This was mainly due to decreased lipid accumulation in subcutaneous (inguinal) white adipose tissue (IWAT), and the liver. Lipid accumulation proceeded normally in gonadal WAT (GWAT) and glucose intolerance developed to the same degree in FSKO and WT controls when subjected to HFD. CD68-positive macrophages were also significantly reduced in both inguinal and gonadal fat depots. RNA-Seq analysis of IWAT adipocytes from FSKO mice on HFD revealed significant decreases in the expression of genes associated with inflammation. Although Arid5b expression was normal in livers of FSKO mice, tissue weight gains and triglyceride accumulation, and expression of genes involved in lipid metabolism were markedly reduced in livers of FSKO mice on HFD. These results suggest that Arid5b plays a critical role in lipid accumulation in specific WAT depots, and in the inflammatory signaling from WAT depots to liver that lead to lipid accumulation and hepatic steatosis.
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Affiliation(s)
- Robert H Whitson
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
| | - Shu-Lian Li
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
| | - Guoxiang Zhang
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
| | - Garrett P Larson
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA.
| | - Keiichi Itakura
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
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29
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Michailidou Z, Gomez-Salazar M, Alexaki VI. Innate Immune Cells in the Adipose Tissue in Health and Metabolic Disease. J Innate Immun 2021; 14:4-30. [PMID: 33849008 DOI: 10.1159/000515117] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 02/09/2021] [Indexed: 11/19/2022] Open
Abstract
Metabolic disorders, such as obesity, type 2 diabetes mellitus, and nonalcoholic fatty liver disease, are characterized by chronic low-grade tissue and systemic inflammation. During obesity, the adipose tissue undergoes immunometabolic and functional transformation. Adipose tissue inflammation is driven by innate and adaptive immune cells and instigates insulin resistance. Here, we discuss the role of innate immune cells, that is, macrophages, neutrophils, eosinophils, natural killer cells, innate lymphoid type 2 cells, dendritic cells, and mast cells, in the adipose tissue in the healthy (lean) and diseased (obese) state and describe how their function is shaped by the obesogenic microenvironment, and humoral, paracrine, and cellular interactions. Moreover, we particularly outline the role of hypoxia as a central regulator in adipose tissue inflammation. Finally, we discuss the long-lasting effects of adipose tissue inflammation and its potential reversibility through drugs, caloric restriction, or exercise training.
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Affiliation(s)
- Zoi Michailidou
- Centre for Cardiovascular Sciences, Edinburgh University, Edinburgh, United Kingdom
| | - Mario Gomez-Salazar
- Centre for Cardiovascular Sciences, Edinburgh University, Edinburgh, United Kingdom
| | - Vasileia Ismini Alexaki
- Institute for Clinical Chemistry and Laboratory Medicine, Medical Faculty, Technische Universität Dresden, Dresden, Germany
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30
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Zhang Y, Chandra V, Riquelme Sanchez E, Dutta P, Quesada PR, Rakoski A, Zoltan M, Arora N, Baydogan S, Horne W, Burks J, Xu H, Hussain P, Wang H, Gupta S, Maitra A, Bailey JM, Moghaddam SJ, Banerjee S, Sahin I, Bhattacharya P, McAllister F. Interleukin-17-induced neutrophil extracellular traps mediate resistance to checkpoint blockade in pancreatic cancer. J Exp Med 2021; 217:152058. [PMID: 32860704 PMCID: PMC7953739 DOI: 10.1084/jem.20190354] [Citation(s) in RCA: 213] [Impact Index Per Article: 71.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 04/25/2020] [Accepted: 07/06/2020] [Indexed: 12/18/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) remains a lethal malignancy with an immunosuppressive microenvironment that is resistant to most therapies. IL17 is involved in pancreatic tumorigenesis, but its role in invasive PDAC is undetermined. We hypothesized that IL17 triggers and sustains PDAC immunosuppression. We inhibited IL17/IL17RA signaling using pharmacological and genetic strategies alongside mass cytometry and multiplex immunofluorescence techniques. We uncovered that IL17 recruits neutrophils, triggers neutrophil extracellular traps (NETs), and excludes cytotoxic CD8 T cells from tumors. Additionally, IL17 blockade increases immune checkpoint blockade (PD-1, CTLA4) sensitivity. Inhibition of neutrophils or Padi4-dependent NETosis phenocopies IL17 neutralization. NMR spectroscopy revealed changes in tumor lactate as a potential early biomarker for IL17/PD-1 combination efficacy. Higher expression of IL17 and PADI4 in human PDAC corresponds with poorer prognosis, and the serum of patients with PDAC has higher potential for NETosis. Clinical studies with IL17 and checkpoint blockade represent a novel combinatorial therapy with potential efficacy for this lethal disease.
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Affiliation(s)
- Yu Zhang
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Vidhi Chandra
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Erick Riquelme Sanchez
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX.,Center for Integrative Biology, Faculty of Science, Universidad Mayor, Santiago, Chile
| | - Prasanta Dutta
- Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Pompeyo R Quesada
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Amanda Rakoski
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Michelle Zoltan
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - Seyda Baydogan
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - William Horne
- Richard King Mellon Foundation Institute for Pediatric Research, Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Jared Burks
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Hanwen Xu
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Perwez Hussain
- Laboratory of Human Carcinogenesis, National Cancer Institute, Bethesda, MD
| | - Huamin Wang
- Department of Anatomical Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX.,Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Sonal Gupta
- Department of Anatomical Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Anirban Maitra
- Department of Anatomical Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX.,Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX.,Sheikh Ahmed Center for Pancreatic Cancer Research, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Jennifer M Bailey
- Department of Gastroenterology, University of Texas Health Sciences Center, Houston, TX
| | - Seyed J Moghaddam
- Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Sulagna Banerjee
- Department of Surgery, Sylvester Comprehensive Cancer Center, University of Miami Health System, Miami, FL
| | - Ismet Sahin
- Department of Engineering, Texas Southern University, Houston, TX
| | - Pratip Bhattacharya
- Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Florencia McAllister
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX.,Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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31
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Yang R, Yao L, Du C, Wu Y. Identification of key pathways and core genes involved in atherosclerotic plaque progression. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:267. [PMID: 33708894 PMCID: PMC7940950 DOI: 10.21037/atm-21-193] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background Atherosclerosis leads to the occurrence of cardiovascular diseases. However, the molecular mechanisms that contribute to atherosclerotic plaque rupture are incompletely characterized. We aimed to identify the genes related to atherosclerotic plaque progression that could serve as novel biomarkers and interventional targets for plaque progression. Methods The datasets of GSE28829 in early vs. advanced atherosclerotic plaques and those of GSE41571 in stable vs. ruptured plaques from Gene Expression Omnibus (GEO) were analyzed by using bioinformatics methods. In addition, we used quantitative reverse transcription polymerase chain reaction (qRT-PCR) to verify the expression level of core genes in a mouse atherosclerosis model. Results There were 29 common differentially expressed genes (DEGs) between the GSE28829 and GSE41571 datasets, and the DEGs were mainly enriched in the chemokine signaling pathway and the Staphylococcus aureus infection pathway (P<0.05). We identified 6 core genes (FPR3, CCL18, MS4A4A, CXCR4, CXCL2, and C1QB) in the protein-protein interaction (PPI) network, 3 of which (CXCR4, CXCL2, and CCL18) were markedly enriched in the chemokine signaling pathway. qRT-PCR analysis showed that the messenger RNA levels of two core genes (CXCR4 and CXCL2) increased significantly during plaque progression in the mouse atherosclerosis model. Conclusions In summary, bioinformatics techniques proved useful for the screening and identification of novel biomarkers of disease. A total of 29 DEGs and 6 core genes were linked to atherosclerotic plaque progression, in particular the CXCR4 and CXCL2 genes.
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Affiliation(s)
- Rong Yang
- Department of Radiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Linpeng Yao
- Department of Radiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chengli Du
- Department of Thoracic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yihe Wu
- Department of Thoracic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Maxwell AJ, Ding J, You Y, Dong Z, Chehade H, Alvero A, Mor Y, Draghici S, Mor G. Identification of key signaling pathways induced by SARS-CoV2 that underlie thrombosis and vascular injury in COVID-19 patients. J Leukoc Biol 2021; 109:35-47. [PMID: 33242368 PMCID: PMC7753679 DOI: 10.1002/jlb.4covr0920-552rr] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/05/2020] [Accepted: 11/05/2020] [Indexed: 12/19/2022] Open
Abstract
The SARS-CoV-2 pandemic has led to hundreds of thousands of deaths and billions of dollars in economic damage. The immune response elicited from this virus is poorly understood. An alarming number of cases have arisen where COVID-19 patients develop complications on top of the symptoms already associated with SARS, such as thrombosis, injuries of vascular system, kidney, and liver, as well as Kawasaki disease. In this review, a bioinformatics approach was used to elucidate the immune response triggered by SARS-CoV-2 infection in primary human lung epithelial and transformed human lung alveolar. Additionally, examined the potential mechanism behind several complications that have been associated with COVID-19 and determined that a specific cytokine storm is leading to excessive neutrophil recruitment. These neutrophils are directly leading to thrombosis, organ damage, and complement activation via neutrophil extracellular trap release.
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Affiliation(s)
- Anthony J Maxwell
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics, Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Jiahui Ding
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics, Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Yuan You
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics, Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Zhong Dong
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics, Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Hussein Chehade
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics, Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Ayesha Alvero
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics, Gynecology, Wayne State University, Detroit, Michigan, USA
| | - Yechiel Mor
- Department of Internal Medicine Wayne State University, Detroit, Michigan, USA
| | - Sorin Draghici
- Department of Computer Science, Wayne State University, Detroit, Michigan, USA
| | - Gil Mor
- C.S. Mott Center for Human Growth and Development, Department of Obstetrics, Gynecology, Wayne State University, Detroit, Michigan, USA
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Rouault C, Marcelin G, Adriouch S, Rose C, Genser L, Ambrosini M, Bichet JC, Zhang Y, Marquet F, Aron-Wisnewsky J, Poitou C, André S, Dérumeaux G, Guerre-Millo M, Clément K. Senescence-associated β-galactosidase in subcutaneous adipose tissue associates with altered glycaemic status and truncal fat in severe obesity. Diabetologia 2021; 64:240-254. [PMID: 33125520 DOI: 10.1007/s00125-020-05307-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 09/01/2020] [Indexed: 01/02/2023]
Abstract
AIM/HYPOTHESIS Altered adipose tissue secretory profile contributes to insulin resistance and type 2 diabetes in obesity. Preclinical studies have identified senescent cells as a cellular source of proinflammatory factors in adipose tissue of obese mice. In humans, potential links with obesity comorbidities are poorly defined. Here, we investigated adipose tissue senescent status and relationships with metabolic complications in human obesity. METHODS The study includes a prospective cohort of 227 individuals with severe obesity. A photometric method was used to quantify senescence-associated β-galactosidase (SA-β-gal) activity in paired subcutaneous and omental adipose tissue biopsies obtained during gastric surgery. Gene and secretory profiling was performed in adipose tissue biopsies and in human primary pre-adipocytes in the presence or absence of senolytic drugs targeting senescent cells. Participants were phenotyped for anthropometric and bioclinical variables, metabolic complications and gastric surgery-induced improvement to address relationships with adipose tissue SA-β-gal. RESULTS SA-β-gal activity was sevenfold higher in subcutaneous than in omental adipose tissue and not associated with BMI or chronological age. Several factors, including insulin-like growth factor binding protein 3 (IGFBP3), plasminogen activator inhibitor 1 (PAI1), C-C motif chemokine ligand 2 (CCL2) and IL-6, were upregulated in subcutaneous adipose tissue in relation with SA-β-gal (p for linear trend across tertiles <0.05) and in pre-adipocytes cultured with inflammatory macrophage conditioned media. Senolytic treatment reduced SA-β-gal staining and normalised these alterations. In the whole population, subcutaneous adipose tissue SA-β-gal activity was positively associated with serum leptin, markers of insulin resistance and increased trunk fat mass. Metabolic complications, including type 2 diabetes and dyslipidaemia, were more prevalent in patients with high levels of SA-β-gal, but improved with bariatric surgery whatever the initial adipose tissue senescent status. CONCLUSIONS/INTERPRETATION This study highlights a phenotype of senescence in adipose tissue of severely obese individuals, which characterises prominently subcutaneous fat depots. Subcutaneous adipose tissue senescence is significantly linked to altered glucose metabolism and body fat distribution. Elimination of senescent cells through senolytic treatment could alleviate metabolic complications in severely obese people. Graphical abstract.
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Affiliation(s)
- Christine Rouault
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
| | - Geneviève Marcelin
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
| | - Solia Adriouch
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
| | - Cindy Rose
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
| | - Laurent Genser
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
- Assistance Publique Hôpitaux de Paris, Visceral Surgery Department, Pitié-Salpêtrière Hospital, Paris, France
| | - Marc Ambrosini
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
| | - Jean-Christophe Bichet
- Assistance Publique Hôpitaux de Paris, Service de Chirurgie et Cancérologie Gynécologique et Mammaire, Pitié-Salpêtrière Hospital, Paris, France
| | - Yanyan Zhang
- Inserm U955, Université Paris-Est Créteil (UPEC), Créteil, France
| | - Florian Marquet
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
| | - Judith Aron-Wisnewsky
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
- Assistance Publique Hôpitaux de Paris, Nutrition Department, CRNH Ile de France, Pitié-Salpêtrière Hospital, Paris, France
| | - Christine Poitou
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
- Assistance Publique Hôpitaux de Paris, Nutrition Department, CRNH Ile de France, Pitié-Salpêtrière Hospital, Paris, France
| | - Sébastien André
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
| | - Geneviève Dérumeaux
- Inserm U955, Université Paris-Est Créteil (UPEC), Créteil, France
- Assistance Publique Hôpitaux de Paris, Department of Cardiology, Henri Mondor Hospital, DHU-ATVB, Créteil, France
| | - Michèle Guerre-Millo
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France
| | - Karine Clément
- Sorbonne Université, Inserm, Nutrition and Obesities: Systemic Approaches (Nutriomics), Paris, France.
- Assistance Publique Hôpitaux de Paris, Nutrition Department, CRNH Ile de France, Pitié-Salpêtrière Hospital, Paris, France.
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Cimini FA, Barchetta I, Ciccarelli G, Leonetti F, Silecchia G, Chiappetta C, Di Cristofano C, Capoccia D, Bertoccini L, Ceccarelli V, Carletti R, Fraioli A, Baroni MG, Morini S, Cavallo MG. Adipose tissue remodelling in obese subjects is a determinant of presence and severity of fatty liver disease. Diabetes Metab Res Rev 2021; 37:e3358. [PMID: 32469428 DOI: 10.1002/dmrr.3358] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/21/2020] [Accepted: 05/18/2020] [Indexed: 12/11/2022]
Abstract
AIMS Experimental data suggest that visceral adipose tissue (VAT) dysfunction contributes to non-alcoholic fatty liver disease (NAFLD) development in obesity, however, data on humans are limited. Aims of this study were to investigate the relationship between NAFLD and VAT morphofunctional impairment and to determine whether the extent of VAT remodelling is associated with liver damage and metabolic alterations in obesity. METHODS We analysed data from 40 obese individuals candidate to bariatric surgery in whom paired intraoperative liver and omental biopsies were performed for diagnosing NAFLD and VAT inflammation by immunohistochemistry and mRNA expression studies. RESULTS Within our study population, NAFLD was significantly associated with greater VAT CD68+ macrophages infiltration (P = .04), fibrosis (P = .04) and impaired microvascular density (P = .03) as well as increased expression of markers of local hypoxia, apoptosis and inflammation (UNC5B, CASP7, HIF1-α, IL-8, MIP2, WISP-1, all P < .01). The degree of VAT inflammation correlated with the severity of hepatic injury (steatosis, inflammation, fibrosis; all P < .01) and impaired gluco-metabolic profile. CONCLUSIONS In obese patients, NAFLD is associated in a dose-dependent manner with signs of VAT remodelling, which reflect more severe clinical metabolic impairment. Our study depicts morphological alterations and novel mediators of VAT dysfunction, adding knowledge for future therapeutic approaches to NAFLD and its metabolic complications.
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Affiliation(s)
- Flavia Agata Cimini
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Ilaria Barchetta
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Gea Ciccarelli
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Frida Leonetti
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Gianfranco Silecchia
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Caterina Chiappetta
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Claudio Di Cristofano
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Danila Capoccia
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Laura Bertoccini
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Raffaella Carletti
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Antonio Fraioli
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | - Marco Giorgio Baroni
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
- Neuroendocrinology and Metabolic Disease, IRCCS Neuromed, Pozzilli, Italy
| | - Sergio Morini
- Laboratory of Microscopic and Ultrastructural Anatomy, Faculty of Medicine, University Campus Bio-Medico, Rome, Italy
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Pan YC, Nishikawa T, Chang CY, Tai JA, Kaneda Y. CXCL2 combined with HVJ-E suppresses tumor growth and lung metastasis in breast cancer and enhances anti-PD-1 antibody therapy. MOLECULAR THERAPY-ONCOLYTICS 2020; 20:175-186. [PMID: 33575480 PMCID: PMC7851488 DOI: 10.1016/j.omto.2020.12.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 12/22/2020] [Indexed: 12/28/2022]
Abstract
Breast cancer has a high risk of metastasis; however, no effective treatment has been established. We developed a novel immunotherapy for breast cancer to enhance cytotoxic T lymphocytes against cancer cells using N1-type neutrophils with anti-tumor properties. For this purpose, we combined CXCL2 (CXC chemokine ligand 2) plasmid DNA with inactivated Sendai virus (hemagglutinating virus of Japan)-envelope (HVJ-E). The combination of CXCL2 DNA and HVJ-E (C/H) suppressed the growth of murine breast cancers in orthotopic syngeneic models by enhancing cytotoxic T lymphocytes and inhibited lung metastasis of breast cancer from primary lesions. N1-type neutrophils (CD11b+ Ly6G+ FAS+) increased in the tumor microenvironment with C/H treatment, and tumor suppression and cytotoxic T lymphocyte activation from C/H was blocked after administrating anti-neutrophil antibodies, which indicates the role of N1-type neutrophils in cancer immunotherapy. We also demonstrated that the anti-tumor activities of C/H treatment were enhanced by the administration of anti-PD-1 antibodies through neutrophil-mediated cytotoxic T lymphocyte activation. Thus, the triple combination of C/H and anti-PD-1 antibody C/H treatment may provide an improvement in cancer immunotherapy.
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Affiliation(s)
- Yi Chun Pan
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Tomoyuki Nishikawa
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Chin Yang Chang
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Jiayu A Tai
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
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Thompson D, Watt JA, Brissette CA. Host transcriptome response to Borrelia burgdorferi sensu lato. Ticks Tick Borne Dis 2020; 12:101638. [PMID: 33360384 DOI: 10.1016/j.ttbdis.2020.101638] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 10/22/2022]
Abstract
The host immune response to infection is a well-coordinated system of innate and adaptive immune cells working in concert to prevent the colonization and dissemination of a pathogen. While this typically leads to a beneficial outcome and the suppression of disease pathogenesis, the Lyme borreliosis bacterium, Borrelia burgdorferi sensu lato, can elicit an immune profile that leads to a deleterious state. As B. burgdorferi s.l. produces no known toxins, it is suggested that the immune and inflammatory response of the host are responsible for the manifestation of symptoms, including flu-like symptoms, musculoskeletal pain, and cognitive disorders. The past several years has seen a substantial increase in the use of microarray and sequencing technologies to investigate the transcriptome response induced by B. burgdorferi s.l., thus enabling researchers to identify key factors and pathways underlying the pathophysiology of Lyme borreliosis. In this review we present the major host transcriptional outcomes induced by the bacterium across several studies and discuss the overarching theme of the host inflammatory and immune response, and how it influences the pathology of Lyme borreliosis.
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Affiliation(s)
- Derick Thompson
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, ND, United States.
| | - John A Watt
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, ND, United States.
| | - Catherine A Brissette
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, ND, United States.
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37
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Tang H, Gao Y, Li Z, Miao Y, Huang Z, Liu X, Xie L, Li H, Wen W, Zheng Y, Su W. The noncoding and coding transcriptional landscape of the peripheral immune response in patients with COVID-19. Clin Transl Med 2020; 10:e200. [PMID: 33135345 PMCID: PMC7548099 DOI: 10.1002/ctm2.200] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND COVID-19 is currently a global pandemic, but the response of human immune system to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection remains unclear. Noncoding RNAs serve as immune regulators and thus may play a critical role in disease progression. METHODS We performed multi-transcriptome sequencing of both noncoding RNAs and mRNAs isolated from the red blood cell depleted whole blood of moderate and severe COVID-19 patients. The functions of noncoding RNAs were validated by analyses of the expression of downstream mRNAs. We further utilized the single-cell RNA-seq data of COVID-19 patients from Wilk et al. and Chua et al. to characterize noncoding RNA functions in different cell types. RESULTS We defined four types of microRNAs with different expression tendencies that could serve as biomarkers for COVID-19 progress. We also identified miR-146a-5p, miR-21-5p, miR-142-3p, and miR-15b-5p as potential contributors to the disease pathogenesis, possibly serving as biomarkers of severe COVID-19 and as candidate therapeutic targets. In addition, the transcriptome profiles consistently suggested hyperactivation of the immune response, loss of T-cell function, and immune dysregulation in severe patients. CONCLUSIONS Collectively, these findings provide a comprehensive view of the noncoding and coding transcriptional landscape of peripheral immune cells during COVID-19, furthering our understanding and offering novel insights into COVID-19 pathogenesis.
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Affiliation(s)
- Hao Tang
- Department of Respiratory and Critical Care Medicine Changzheng HospitalSecond Military Medical UniversityShanghaiChina
- Department of Critical CareWuhan Huo Shen Shan HospitalHubeiChina
| | - Yuehan Gao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
| | - Zhaohuai Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
| | - Yushan Miao
- Department of Respiratory and Critical Care Medicine Changzheng HospitalSecond Military Medical UniversityShanghaiChina
| | - Zhaohao Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
| | - Xiuxing Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
| | - Lihui Xie
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
| | - He Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
| | - Wen Wen
- National Center for Liver CancerSecond Military Medical UniversityShanghaiChina
| | - Yingfeng Zheng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
| | - Wenru Su
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
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Dai H, Wei G, Wang Y, Ma N, Chang G, Shen X. Sodium butyrate promotes lipopolysaccharide-induced innate immune responses by enhancing mitogen-activated protein kinase activation and histone acetylation in bovine mammary epithelial cells. J Dairy Sci 2020; 103:11636-11652. [PMID: 33010913 DOI: 10.3168/jds.2020-18198] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 07/22/2020] [Indexed: 12/29/2022]
Abstract
The innate immune response plays a crucial role in recovery from infectious diseases by promoting the clearance of pathogens. Sodium butyrate (NaB) is an energy source for cellular processes with the potential to regulate the innate immune response. The present study aimed to evaluate the effect of NaB on the innate immune response in a bovine mammary alveolar cell line (MAC-T) initiated by lipopolysaccharides (LPS). Thus, treatments were conducted as follows: treated with 1× PBS for 24 h (control), pretreated with 1 mM NaB (optimized by cell viability assays and dose-dependent experiment) for 18 h followed by treatment of 1× PBS for 6 h (NaB), pretreated with 1× PBS for 18 h followed by stimulation with LPS (1 µg/mL) for 6 h (LPS), and pretreated with 1 mM NaB for 18 h followed by stimulation with LPS (1 µg/mL) for 6 h (NaB + LPS). Different inhibitors were also used to elucidate the underlying mechanism. Furthermore, cells were treated with NaB and heat-inactivated Escherichia coli to test the effect of NaB on transcription of genes related to the innate immune response triggered by the major causative pathogen of mastitis. Each treatment had 3 replicates and was repeated 3 times. Proinflammatory cytokines, chemokines, and β-defensins are crucial secretion factors in innate immunity, and transcription of these factors was increased by NaB during challenge with LPS or heat-inactivated E. coli in MAC-T cells. Acetylation of histone H3 protein, which promotes gene expression by affecting the structure of chromatin, was also upregulated by NaB in response to LPS stimulation. P38 mitogen-activated protein kinases (MAPK), JNK, and Erk 1 and 2 are key upstream regulators of the expression of proinflammatory cytokines, chemokines, and β-defensins, and their activity was enhanced by NaB during LPS stimulation. Furthermore, inhibitors were used to assess the role of MAPK signaling in the effects of NaB. The results showed that inhibitors of p38 MAPK, Erk, and JNK attenuated the NaB-induced upregulation of TNF and β-defensin 5 (DEFB5) transcription, and that the inhibitor of Erk attenuated the NaB-induced upregulation of IL1B transcription during LPS challenge. Enhanced transcription of CXCL8 by NaB was blocked by the inhibitor of Erk and p38 MAPK during LPS stimulation. Overall, NaB boosted the LPS-induced innate immune response by promoting the expression of proinflammatory cytokines, chemokines, and β-defensins, which was associated with enhanced MAPK signaling activation and histone H3 acetylation.
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Affiliation(s)
- Hongyu Dai
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Guozhen Wei
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Yan Wang
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Nana Ma
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Guangjun Chang
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Xiangzhen Shen
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, P. R. China.
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Green ID, Pinello N, Song R, Lee Q, Halstead JM, Kwok CT, Wong ACH, Nair SS, Clark SJ, Roediger B, Schmitz U, Larance M, Hayashi R, Rasko JEJ, Wong JJL. Macrophage development and activation involve coordinated intron retention in key inflammatory regulators. Nucleic Acids Res 2020; 48:6513-6529. [PMID: 32449925 PMCID: PMC7337907 DOI: 10.1093/nar/gkaa435] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/04/2020] [Accepted: 05/11/2020] [Indexed: 12/31/2022] Open
Abstract
Monocytes and macrophages are essential components of the innate immune system. Herein, we report that intron retention (IR) plays an important role in the development and function of these cells. Using Illumina mRNA sequencing, Nanopore direct cDNA sequencing and proteomics analysis, we identify IR events that affect the expression of key genes/proteins involved in macrophage development and function. We demonstrate that decreased IR in nuclear-detained mRNA is coupled with increased expression of genes encoding regulators of macrophage transcription, phagocytosis and inflammatory signalling, including ID2, IRF7, ENG and LAT. We further show that this dynamic IR program persists during the polarisation of resting macrophages into activated macrophages. In the presence of proinflammatory stimuli, intron-retaining CXCL2 and NFKBIZ transcripts are rapidly spliced, enabling timely expression of these key inflammatory regulators by macrophages. Our study provides novel insights into the molecular factors controlling vital regulators of the innate immune response.
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Affiliation(s)
- Immanuel D Green
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia
| | - Natalia Pinello
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia
| | - Renhua Song
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia
| | - Quintin Lee
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia.,Immune Imaging Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia
| | - James M Halstead
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia
| | - Chau-To Kwok
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia
| | - Alex C H Wong
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia.,Gene and Stem Cell Therapy Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia
| | - Shalima S Nair
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Darlinghurst 2010, Australia.,St. Vincent's Clinical School, UNSW, Sydney 2010, Australia.,Kinghorn Centre for Clinical Genomics, Garvan Institute of Medical Research, Darlinghurst 2010, Australia
| | - Susan J Clark
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Darlinghurst 2010, Australia.,St. Vincent's Clinical School, UNSW, Sydney 2010, Australia
| | - Ben Roediger
- Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia.,Immune Imaging Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia
| | - Ulf Schmitz
- Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia.,Gene and Stem Cell Therapy Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Computational Biomedicine Laboratory Centenary Institute, The University of Sydney, Camperdown 2050, Australia
| | - Mark Larance
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown 2006, New South Wales, Australia
| | - Rippei Hayashi
- The John Curtin School of Medical Research, The Australian National University, ACT 2601, Australia
| | - John E J Rasko
- Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia.,Gene and Stem Cell Therapy Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Cell and Molecular Therapies, Royal Prince Alfred Hospital, Camperdown 2050, Australia
| | - Justin J-L Wong
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.,Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia
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40
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Vidhya R, Anuradha CV. Anti-inflammatory effects of troxerutin are mediated through elastase inhibition. Immunopharmacol Immunotoxicol 2020; 42:423-435. [PMID: 32762381 DOI: 10.1080/08923973.2020.1806870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
CONTEXT Obesity is a chronic low-grade inflammatory state associated with immune cell infiltration into the adipose tissue (AT). We hypothesize that the anti-obesity and anti-inflammatory effects of troxerutin (TX) are mediated through inhibition of elastase. OBJECTIVE To determine the inhibitory effect of TX on elastase in vitro and in tumor necrosis factor alpha (TNFα) induced 3T3-L1 adipocytes and the molecular interaction of TX with human neutrophil elastase (HNE). MATERIALS AND METHODS Differentiated 3T3-L1 adipocytes were pretreated with TX, elastatinal (ELAS) or sodium salicylate (SAL) before exposure to TNFα. Lipid accumulation, reactive oxygen species (ROS) generation and oxidant-antioxidant balance were examined. The mRNA and protein expression of TNFα, interleukin-6, monocyte chemoattractant protein-1, adiponectin, leptin, resistin, chemerin, and elastase were analyzed. Elastase inhibition by TX and ELAS in a cell free system and docking studies for HNE with TX and ELAS were performed. RESULTS TX, ELAS or SAL pretreatment had lowered lipid droplets formation and TG content. TX suppressed ROS generation, oxidative stress and improved antioxidant status. The expression of inflammatory cytokines and elastase was downregulated while that of adiponectin was upregulated by TX. The concentration required to produce 50% inhibition in vitro (IC50) was 11.5 μM for TX and 16.9 μM for ELAS. TX showed hydrogen bonding and hydrophobic interactions with elastase. DISCUSSION TNFα induces inflammation of 3T3-L1 cells through elastase activation. TX inhibits elastase activity, downregulates expression and binds with elastase. CONCLUSION The antioxidant and anti-inflammatory activities of TX in AT could be of relevance in the management of obesity.
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Affiliation(s)
- Ramachandran Vidhya
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalai Nagar, Tamil Nadu, India
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41
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Thompson D, Sorenson J, Greenmyer J, Brissette CA, Watt JA. The Lyme disease bacterium, Borrelia burgdorferi, stimulates an inflammatory response in human choroid plexus epithelial cells. PLoS One 2020; 15:e0234993. [PMID: 32645014 PMCID: PMC7347220 DOI: 10.1371/journal.pone.0234993] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 06/05/2020] [Indexed: 11/19/2022] Open
Abstract
The main functions of the choroid plexus (CP) are the production of cerebral spinal fluid (CSF), the formation of the blood-CSF barrier, and regulation of immune response. This barrier allows for the exchange of specific nutrients, waste, and peripheral immune cells between the blood stream and CSF. Borrelia burgdorferi (Bb), the causative bacteria of Lyme disease, is associated with neurological complications including meningitis-indeed, Bb has been isolated from the CSF of patients. While it is accepted that B. burgdorferi can enter the central nervous system (CNS) of patients, it is unknown how the bacteria crosses this barrier and how the pathogenesis of the disease leads to the observed symptoms in patients. We hypothesize that during infection Borrelia burgdorferi will induce an immune response conducive to the chemotaxis of immune cells and subsequently lead to a pro-inflammatory state with the CNS parenchyma. Primary human choroid plexus epithelial cells were grown in culture and infected with B. burgdorferi strain B31 MI-16 for 48 hours. RNA was isolated and used for RNA sequencing and RT-qPCR validation. Secreted proteins in the supernatant were analyzed via ELISA. Transcriptome analysis based on RNA sequencing determined a total of 160 upregulated genes and 98 downregulated genes. Pathway and biological process analysis determined a significant upregulation in immune and inflammatory genes specifically in chemokine and interferon related pathways. Further analysis revealed downregulation in genes related to cell to cell junctions including tight and adherens junctions. These results were validated via RT-qPCR. Protein analysis of secreted factors showed an increase in inflammatory chemokines, corresponding to our transcriptome analysis. These data further demonstrate the role of the CP in the modulation of the immune response in a disease state and give insight into the mechanisms by which Borrelia burgdorferi may disseminate into, and act upon, the CNS. Future experiments aim to detail the impact of B. burgdorferi on the blood-CSF-barrier (BCSFB) integrity and inflammatory response within animal models.
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Affiliation(s)
- Derick Thompson
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Jordyn Sorenson
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Jacob Greenmyer
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Catherine A. Brissette
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - John A. Watt
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
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42
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Gross-Amat O, Guillen M, Gimeno JP, Salzet M, Lebonvallet N, Misery L, Auxenfans C, Nataf S. Molecular Mapping of Hydrogen Sulfide Targets in Normal Human Keratinocytes. Int J Mol Sci 2020; 21:E4648. [PMID: 32629886 PMCID: PMC7369889 DOI: 10.3390/ijms21134648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/17/2020] [Accepted: 06/26/2020] [Indexed: 12/11/2022] Open
Abstract
Although sulfur-rich thermal waters have ancestrally been used in the context of dermatological conditions, a global mapping of the molecular effects exerted by H2S on human keratinocytes is still lacking. To fill this knowledge gap, we subjected cultured human keratinocytes to distinct amounts of the non-gaseous hydrogen sulfur donor NaHS. We first checked that H2S accumulated in the cytoplasm of keratinocytes under our experimental conditions andused a combination of proteomics, genomics and biochemical approaches to unravel functionally relevant H2S targets in human keratinocytes. We found that the identified targets fall into two main categories: (i) the oxidative stress response molecules superoxide dismutase 2 (SOD2), NAD(P)H quinone dehydrogenase 1 (NQO1) and culin 3 (CUL3) and (ii) the chemokines interleukin-8 (IL-8) and CXCL2. Interestingly, NaHS also stimulated the caspase-1 inflammasome pathway, leading to increased secretion of the pro-inflammatory molecule interleukin-18 (IL-18). Interestingly, the secretion of interleukin-1 beta (IL-1β) was only modestly impacted by NaHS exposure despite a significant accumulation of IL-1β pro-form. Finally, we observed that NaHS significantly hampered the growth of human keratinocyte progenitors and stem cells cultured under clonogenic conditions or as epidermal cell sheets. We conclude that H2S exerts specific molecular effects on normal human keratinocytes.
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Affiliation(s)
- Olivia Gross-Amat
- Lyon-Est School of Medicine, University Claude Bernard Lyon-1, 69100 Villeurbanne, France; (M.G.); (S.N.)
- Bank of Tissues and Cells, Lyon University Hospital (Hospices Civils de Lyon), 69003 Lyon, France;
- CarMeN Laboratory, INSERM U1060, INRA U1397, INSA de Lyon, 69600 Oullins, France
| | - Marine Guillen
- Lyon-Est School of Medicine, University Claude Bernard Lyon-1, 69100 Villeurbanne, France; (M.G.); (S.N.)
| | - Jean-Pascal Gimeno
- Inserm, CHRU Lille, U-1192-Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse-PRISM, University of Lille, F-59000 Lille, France; (J.-P.G.); (M.S.)
| | - Michel Salzet
- Inserm, CHRU Lille, U-1192-Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse-PRISM, University of Lille, F-59000 Lille, France; (J.-P.G.); (M.S.)
| | - Nicolas Lebonvallet
- Laboratory of Epithelial-Neural Interactions, University of Brest, LIEN, 29200 Brest, France; (N.L.); (L.M.)
| | - Laurent Misery
- Laboratory of Epithelial-Neural Interactions, University of Brest, LIEN, 29200 Brest, France; (N.L.); (L.M.)
- Department of dermatology, Brest University Hospital (CHU de Brest), 29200 Brest, France
| | - Céline Auxenfans
- Bank of Tissues and Cells, Lyon University Hospital (Hospices Civils de Lyon), 69003 Lyon, France;
- Tissue Biology and Therapeutic Engineering Laboratory, UMR 5305, 69007 Lyon, France
| | - Serge Nataf
- Lyon-Est School of Medicine, University Claude Bernard Lyon-1, 69100 Villeurbanne, France; (M.G.); (S.N.)
- Bank of Tissues and Cells, Lyon University Hospital (Hospices Civils de Lyon), 69003 Lyon, France;
- CarMeN Laboratory, INSERM U1060, INRA U1397, INSA de Lyon, 69600 Oullins, France
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43
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Elieh Ali Komi D, Shafaghat F, Christian M. Crosstalk Between Mast Cells and Adipocytes in Physiologic and Pathologic Conditions. Clin Rev Allergy Immunol 2020; 58:388-400. [PMID: 32215785 PMCID: PMC7244609 DOI: 10.1007/s12016-020-08785-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Excessive fatty acids and glucose uptake support the infiltration of adipose tissue (AT) by a variety of immune cells including neutrophils, pro-inflammatory M1 macrophages, and mast cells (MCs). These cells promote inflammation by releasing pro-inflammatory mediators. The involvement of MCs in AT biology is supported by their accumulation in the AT of obese individuals along with significantly higher serum levels of MC-derived tryptase. AT-resident MCs under the influence of locally derived adipokines such as leptin become activated and release pro-inflammatory cytokines including TNFα that worsens the inflammatory state. MCs support angiogenesis in AT by releasing chymase and inducing preadipocyte differentiation and also the proliferation of adipocytes through 15-deoxy-delta PGJ2/PPARγ interaction. Additionally, they contribute to the remodeling of the AT extracellular matrix (ECM) and play a role in the recruitment and activation of leukocytes. MC degranulation has been linked to brown adipocyte activation, and evidence indicates an important link between MCs and the appearance of BRITE/beige adipocytes in white AT. Cell crosstalk between MCs and AT-resident cells, mainly adipocytes and immune cells, shows that these cells play a critical role in the regulation of AT homeostasis and inflammation.
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Affiliation(s)
- Daniel Elieh Ali Komi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farzaneh Shafaghat
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mark Christian
- School of Science and Technology, Nottingham, NG11 8NS, UK.
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44
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Orellano LAA, de Almeida SA, Pereira LX, Machado CT, Viana CTR, Andrade SP, Campos PP. Implant-induced inflammatory angiogenesis is up-regulated in obese mice. Microvasc Res 2020; 131:104014. [PMID: 32450153 DOI: 10.1016/j.mvr.2020.104014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 01/02/2023]
Abstract
The damaging effects of obesity extend to multiple pre-existing tissue/organs. However, the influence of this condition on key components (inflammation and angiogenesis) of fibrovascular connective proliferating tissue, essential in repair processes, has been neglected. Our objective in this study was to investigate whether obesity would influence inflammatory-angiogenesis induced by synthetic matrix of polyether-polyurethane implanted subcutaneously in high-fat-fed obese C57/BL6 mice. Fourteen days after implantation, the inflammatory and angiogenic components of the newly formed tissue intra-implant were evaluated. The pro-inflammatory enzyme activities, myeloperoxidase (MPO) and N-acetyl-β-D-glucosaminidase (NAG), the levels of TNF-α, CXCL1/KC and CCL2 and NF-κB transcription factor were examined. Angiogenesis was determined by morphometric analysis of implant blood vessels, intra-implant levels of hemoglobin content, VEGF levels, and western blot for VEGFR2. All inflammatory and angiogenic markers were increased in the implants of obese mice compared with their non-obese counterparts. Similarly, activation of the NF-κB pathway and phosphorylation of VEGFR2 were higher in implants of obese mice (1.60 ± 0.28 Np65/Cp65; 0.96 ± 0.08 p-VEGFR2/VEGFR2-T) compared with implants of non-obese animals (1.40 ± 0.14; 0.49 ± 0.08). These observations suggest that obesity exerts critical role in sponge-induced inflammatory-angiogenesis, possibly by activating fibrovascular components in the inflamed microenvironment. Thus, this pathological condition causes damage not only to pre-existing tissues/organs but also to newly formed proliferating fibrovascular tissue. This is relevant to the development of therapeutic approaches to improve healing processes in patients with obesity.
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Affiliation(s)
- Laura Alejandra Ariza Orellano
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901 Belo Horizonte, MG, Brazil.
| | - Simone Aparecida de Almeida
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901 Belo Horizonte, MG, Brazil
| | - Luciana Xavier Pereira
- Nursing Department, Federal University of Alagoas, Av. Manoel Severino Barbosa Bom Sucesso - Campus Arapiraca, CEP: 57309-005 Arapiraca, AL, Brazil
| | - Clara Tolentino Machado
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901 Belo Horizonte, MG, Brazil
| | - Celso Tarso Rodrigues Viana
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901 Belo Horizonte, MG, Brazil
| | - Silvia Passos Andrade
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901 Belo Horizonte, MG, Brazil.
| | - Paula Peixoto Campos
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627 - Campus Pampulha, Cx Post 468, CEP 31270-901 Belo Horizonte, MG, Brazil.
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Weinstock A, Moura Silva H, Moore KJ, Schmidt AM, Fisher EA. Leukocyte Heterogeneity in Adipose Tissue, Including in Obesity. Circ Res 2020; 126:1590-1612. [PMID: 32437300 DOI: 10.1161/circresaha.120.316203] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Adipose tissue (AT) plays a central role in both metabolic health and pathophysiology. Its expansion in obesity results in increased mortality and morbidity, with contributions to cardiovascular disease, diabetes mellitus, fatty liver disease, and cancer. Obesity prevalence is at an all-time high and is projected to be 50% in the United States by 2030. AT is home to a large variety of immune cells, which are critical to maintain normal tissue functions. For example, γδ T cells are fundamental for AT innervation and thermogenesis, and macrophages are required for recycling of lipids released by adipocytes. The expansion of visceral white AT promotes dysregulation of its immune cell composition and likely promotes low-grade chronic inflammation, which has been proposed to be the underlying cause for the complications of obesity. Interestingly, weight loss after obesity alters the AT immune compartment, which may account for the decreased risk of developing these complications. Recent technological advancements that allow molecular investigation on a single-cell level have led to the discovery of previously unappreciated heterogeneity in many organs and tissues. In this review, we will explore the heterogeneity of immune cells within the visceral white AT and their contributions to homeostasis and pathology.
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Affiliation(s)
- Ada Weinstock
- From the Cardiovascular Research Center, Leon H. Charney Division of Cardiology, Department of Medicine (A.W., K.J.M., E.A.F.), New York University Grossman School of Medicine
| | - Hernandez Moura Silva
- Kimmel Center for Biology and Medicine at the Skirball Institute (H.M.S.), New York University Grossman School of Medicine
| | - Kathryn J Moore
- From the Cardiovascular Research Center, Leon H. Charney Division of Cardiology, Department of Medicine (A.W., K.J.M., E.A.F.), New York University Grossman School of Medicine.,Department of Cell Biology (K.J.M., E.A.F.), New York University Grossman School of Medicine
| | - Ann Marie Schmidt
- Diabetes Research Program, Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine (A.M.S.), New York University Grossman School of Medicine
| | - Edward A Fisher
- From the Cardiovascular Research Center, Leon H. Charney Division of Cardiology, Department of Medicine (A.W., K.J.M., E.A.F.), New York University Grossman School of Medicine.,Department of Cell Biology (K.J.M., E.A.F.), New York University Grossman School of Medicine
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46
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Gilleron J, Bouget G, Ivanov S, Meziat C, Ceppo F, Vergoni B, Djedaini M, Soprani A, Dumas K, Jacquel A, Yvan-Charvet L, Venteclef N, Tanti JF, Cormont M. Rab4b Deficiency in T Cells Promotes Adipose Treg/Th17 Imbalance, Adipose Tissue Dysfunction, and Insulin Resistance. Cell Rep 2019; 25:3329-3341.e5. [PMID: 30566860 DOI: 10.1016/j.celrep.2018.11.083] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 09/04/2018] [Accepted: 11/21/2018] [Indexed: 12/18/2022] Open
Abstract
Obesity modifies T cell populations in adipose tissue, thereby contributing to adipose tissue inflammation and insulin resistance. Here, we show that Rab4b, a small GTPase governing endocytic trafficking, is pivotal in T cells for the development of these pathological events. Rab4b expression is decreased in adipose T cells from mice and patients with obesity. The specific depletion of Rab4b in T cells causes adipocyte hypertrophy and insulin resistance in chow-fed mice and worsens insulin resistance in obese mice. This phenotype is driven by an increase in adipose Th17 and a decrease in adipose Treg due to a cell-autonomous skew of differentiation toward Th17. The Th17/Treg imbalance initiates adipose tissue inflammation and reduces adipogenesis, leading to lipid deposition in liver and muscles. Therefore, we propose that the obesity-induced loss of Rab4b in adipose T cells may contribute to maladaptive white adipose tissue remodeling and insulin resistance by altering adipose T cell fate.
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Affiliation(s)
- Jérôme Gilleron
- INSERM UMR1065, Mediterranean Center of Molecular Medicine C3M, Team "Cellular and Molecular Physiopathology of Obesity and Diabetes," Nice, France; Université Côte d'Azur, Nice, France
| | - Gwennaëlle Bouget
- INSERM UMR1065, Mediterranean Center of Molecular Medicine C3M, Team "Cellular and Molecular Physiopathology of Obesity and Diabetes," Nice, France; Université Côte d'Azur, Nice, France
| | - Stoyan Ivanov
- Université Côte d'Azur, Nice, France; INSERM U1065, Centre Méditerranéen de Médecine Moléculaire C3M, Team "Metabolism and Cancer," Nice, France
| | - Cindy Meziat
- INSERM UMR1065, Mediterranean Center of Molecular Medicine C3M, Team "Cellular and Molecular Physiopathology of Obesity and Diabetes," Nice, France; Université Côte d'Azur, Nice, France
| | - Franck Ceppo
- INSERM UMR1065, Mediterranean Center of Molecular Medicine C3M, Team "Cellular and Molecular Physiopathology of Obesity and Diabetes," Nice, France; Université Côte d'Azur, Nice, France
| | - Bastien Vergoni
- INSERM UMR1065, Mediterranean Center of Molecular Medicine C3M, Team "Cellular and Molecular Physiopathology of Obesity and Diabetes," Nice, France; Université Côte d'Azur, Nice, France
| | - Mansour Djedaini
- INSERM UMR1065, Mediterranean Center of Molecular Medicine C3M, Team "Cellular and Molecular Physiopathology of Obesity and Diabetes," Nice, France; Université Côte d'Azur, Nice, France
| | - Antoine Soprani
- Sorbonne Université, Université Pierre et Marie Curie, INSERM, UMR S_1138 Cordeliers Research Center, Paris, France; Clinique Geoffroy Saint-Hilaire, Ramsey Générale de Santé, Paris, France
| | - Karine Dumas
- INSERM UMR1065, Mediterranean Center of Molecular Medicine C3M, Team "Cellular and Molecular Physiopathology of Obesity and Diabetes," Nice, France; Université Côte d'Azur, Nice, France
| | - Arnaud Jacquel
- Université Côte d'Azur, Nice, France; INSERM U1065, Centre Méditerranéen de Médecine Moléculaire C3M, Team "Cell Death, Differentiation, and Cancer," Nice, France
| | - Laurent Yvan-Charvet
- Université Côte d'Azur, Nice, France; INSERM U1065, Centre Méditerranéen de Médecine Moléculaire C3M, Team "Metabolism and Cancer," Nice, France
| | - Nicolas Venteclef
- Sorbonne Université, Université Pierre et Marie Curie, INSERM, UMR S_1138 Cordeliers Research Center, Paris, France
| | - Jean-François Tanti
- INSERM UMR1065, Mediterranean Center of Molecular Medicine C3M, Team "Cellular and Molecular Physiopathology of Obesity and Diabetes," Nice, France; Université Côte d'Azur, Nice, France
| | - Mireille Cormont
- INSERM UMR1065, Mediterranean Center of Molecular Medicine C3M, Team "Cellular and Molecular Physiopathology of Obesity and Diabetes," Nice, France; Université Côte d'Azur, Nice, France.
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47
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Xue D, Tabib T, Morse C, Lafyatis R. Transcriptome landscape of myeloid cells in human skin reveals diversity, rare populations and putative DC progenitors. J Dermatol Sci 2019; 97:41-49. [PMID: 31836271 DOI: 10.1016/j.jdermsci.2019.11.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/08/2019] [Accepted: 11/25/2019] [Indexed: 01/21/2023]
Abstract
BACKGROUND The heterogeneous functions of dermal myeloid cells in antigen presentation, and scavenging pathogens and cell debris places them centrally in cutaneous inflammation. Single cell transcriptomics can provide new understanding of the heterogeneity and function of yet incompletely understood human dermal myeloid cell subsets. OBJECTIVE Investigate the transcriptome landscape of myeloid cells in healthy human skin. METHODS Single cell RNA-sequencing was performed on skin biopsies from ten healthy donors and analyzed to identify myeloid cell populations. RESULTS One LIN- HLA-DR+ cluster with expression of myeloid-specific genes was identified as a cluster of myeloid cells. Upon reanalysis of this cluster, we identified three macrophage subsets, marked by high expression of CCR1, MARCO or TREM2; and six dendritic cell subsets, marked by high expression of CLEC9A, CXorf21, MCOLN2, LAMP3, KIAA0101 and Langerin, representing respectively cDC1, two subsets of cDC2, a novel DC type, a cluster of proliferating DC, and a Langerhans cell subset. GO term analysis indicated specialized functions for the discrete rare populations of myeloid cells: TREM2 Mφ in lipid metabolism and LAMP3 DC as a mature cDC. Proliferating DCs appeared to represent cDC2 progenitors. CONCLUSION The transcriptional landscape of myeloid cell populations in human skin indicates several, novel populations with specialized functions, as well as a rare proliferating DC population that likely accounts for local regeneration or expansion of dermal DCs. We provide robust gene expression markers for each of these populations that should permit better understandings of their roles in various homeostatic and pathologic immune processes in the skin.
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Affiliation(s)
- Dan Xue
- Division of Rheumatology and Clinical Rheumatology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA; The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Tracy Tabib
- Division of Rheumatology and Clinical Rheumatology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Christina Morse
- Division of Rheumatology and Clinical Rheumatology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Robert Lafyatis
- Division of Rheumatology and Clinical Rheumatology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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Organogermanium suppresses cell death due to oxidative stress in normal human dermal fibroblasts. Sci Rep 2019; 9:13637. [PMID: 31541125 PMCID: PMC6754400 DOI: 10.1038/s41598-019-49883-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 08/30/2019] [Indexed: 12/23/2022] Open
Abstract
Reactive oxygen species (ROS) are very harmful to dermal cells, and it is thus important to develop cosmetics that protect the skin from ROS and other stimuli. Repagermanium is a synthetic water-soluble organogermanium polymer, and in this study, we attempted to visualize the incorporation of germanium into normal human dermal fibroblasts (NHDFs) using isotope microscopy. In addition, the content of 3-(trihydroxygermyl)propanoic acid (THGP), a hydrolyzed monomer of repagermanium, in NHDFs was determined through liquid chromatography mass spectrometry (LC-MS/MS), and the dose-dependent incorporation of THGP was confirmed. We then evaluated the preventive effects of THGP against ROS-induced NHDF death and confirmed the observed preventive effects through gene profiling and expression analysis. The addition of 0.59–5.9 mM THGP reduced cell death resulting from ROS damage caused by the reaction between xanthine oxidase and hypoxanthine and the direct addition of H2O2. Furthermore, this study provides the first demonstration that the effect of THGP was not due to the direct scavenging of ROS, which indicates that the mechanism of THGP differs from that of general antioxidants, such as ascorbic acid. The gene profiling and expression analysis showed that THGP suppressed the expression of the nuclear receptor subfamily 4 group A member 2 (NR4A2) gene, which is related to cell death, and the interleukin 6 (IL6) and chemokine (C-X-C motif) ligand 2 (CXCL2) genes, which are related to the inflammatory response. Furthermore, the production of IL6 induced by H2O2 was suppressed by the THGP treatment. Our data suggest that the preventive effect of THGP against ROS-induced cell death is not due to antioxidant enzymes or ROS scavenging.
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Yang H, Graham LC, Reagan AM, Grabowska WA, Schott WH, Howell GR. Transcriptome profiling of brain myeloid cells revealed activation of Itgal, Trem1, and Spp1 in western diet-induced obesity. J Neuroinflammation 2019; 16:169. [PMID: 31426806 PMCID: PMC6700800 DOI: 10.1186/s12974-019-1527-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 06/20/2019] [Indexed: 12/18/2022] Open
Abstract
Background Environmental factors are critical in the development of age-related cognitive decline and dementia. A western diet (WD) can cause nutrient deficiency and inflammation that could impact cognition directly. It is increasingly recognized that innate immune responses by brain myeloid cells, such as resident microglia, and infiltrating peripheral monocytes/macrophages may represent an essential link between a WD, cognitive decline, and dementia. Our previous data demonstrated that chronic consumption of a WD induced inflammation through brain myeloid cells in aging mice and a mouse model of Alzheimer’s disease (AD). However, the subtypes of myeloid cells that contribute to the WD-induced inflammation remain unclear. Methods C57BL/6J (B6), myeloid cell reporter mice (B6.Ccr2RFP/+Cx3cr1GFP/+), and Ccr2-deficient mice (B6.Ccr2RFP/RFP) were fed a WD or a control chow diet (CD) from 2 to 6 or 12 months of age. CD11b+CD45lo and CD11b+CD45hi cells from WD- and CD-fed B6 or Ccr2-deficient mice were characterized using flow cytometry, RNA-sequencing, and immunofluorescence. Results Ccr2::RFP expressing myeloid cells were significantly increased in brains of WD- compared to CD-fed mice, but were not elevated in Ccr2-deficient WD-fed mice. The percent of CD11b+CD45hi cells was significantly increased in WD- compared to CD-fed mice. Comparison of RNA-sequencing data with immune cell data in ImmGen supports that CD11b+CD45hi cells from WD-fed mice are enriched for peripheral monocytes and neutrophils. Ingenuity pathway analysis predicted these cells elicit proinflammatory responses that may be damaging to the brain. Using stringent criteria for gene expression levels between CD11b+CD45hi and CD11b+CD45lo cells, we identified approximately 70 genes that we predict are uniquely expressed in infiltrating cells, including Itgal, Trem1, and Spp1 (osteopontin, OPN). Finally, we show a significantly greater number of OPN+IBA1– cells in WD- compared to CD-fed mice that we propose are activated neutrophils based on ImmGen data. OPN+IBA1– cells are not significantly increased in Ccr2-deficient WD-fed mice. Conclusions These data further support the model that peripheral myeloid cells enter the brain in response to diet-induced obesity. Elucidating their contribution to age-related cognitive decline and age-related neurodegenerative diseases should offer new avenues for therapeutic intervention in Alzheimer’s disease and related dementias, where diet/obesity are major risk factors. Electronic supplementary material The online version of this article (10.1186/s12974-019-1527-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Leah C Graham
- The Jackson Laboratory, Bar Harbor, ME, USA.,Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA, USA
| | | | | | | | - Gareth R Howell
- The Jackson Laboratory, Bar Harbor, ME, USA.,Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA, USA.,Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, ME, USA
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Ferroni L, Gardin C, Dalla Paola L, Campo G, Cimaglia P, Bellin G, Pinton P, Zavan B. Characterization of Dermal Stem Cells of Diabetic Patients. Cells 2019; 8:cells8070729. [PMID: 31315286 PMCID: PMC6678145 DOI: 10.3390/cells8070729] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 12/26/2022] Open
Abstract
Diabetic foot ulcers (DFUs) are lesions that involve loss of epithelium and dermis, sometimes involving deep structures, compartments, and bones. The aim of this work is to investigate the innate regenerative properties of dermal tissue around ulcers by the identification and analysis of resident dermal stem cells (DSCs). Dermal samples were taken at the edge of DFUs, and genes related to the wound healing process were analyzed by the real-time PCR array. The DSCs were isolated and analyzed by immunofluorescence, flow cytometry, and real-time PCR array to define their stemness properties. The gene expression profile of dermal tissue showed a dysregulation in growth factors, metalloproteinases, collagens, and integrins involved in the wound healing process. In the basal condition, diabetic DSCs adhered on the culture plate with spindle-shaped fibroblast-like morphology. They were positive to the mesenchymal stem cells markers CD44, CD73, CD90, and CD105, but negative for the hematopoietic markers CD14, CD34, CD45, and HLA-DR. In diabetic DSCs, the transcription of genes related to self-renewal and cell division were equivalent to that in normal DSCs. However, the expression of CCNA2, CCND2, CDK1, ALDH1A1, and ABCG2 was downregulated compared with that of normal DSCs. These genes are also related to cell cycle progression and stem cell maintenance. Further investigation will improve the understanding of the molecular mechanisms by which these genes together govern cell proliferation, revealing new strategies useful for future treatment of DFUs.
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Affiliation(s)
- Letizia Ferroni
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy
| | - Chiara Gardin
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy
| | - Luca Dalla Paola
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
| | - Gianluca Campo
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy
| | - Paolo Cimaglia
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
| | - Gloria Bellin
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy
| | - Paolo Pinton
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy
- Dept. of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology and Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44,121 Ferrara, Italy
| | - Barbara Zavan
- Maria Cecilia Hospital, GVM Care & Research, 48,033 Cotignola (RA), Italy.
- University of Ferrara, Department of Medical Sciences, via Fossato di Mortara 70, 44,121 Ferrara, Italy.
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