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Cabău G, Gaal O, Badii M, Nica V, Mirea AM, Hotea I, Pamfil C, Popp RA, Netea MG, Rednic S, Crișan TO, Joosten LA. Hyperuricemia remodels the serum proteome toward a higher inflammatory state. iScience 2023; 26:107909. [PMID: 37810213 PMCID: PMC10550725 DOI: 10.1016/j.isci.2023.107909] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/01/2023] [Accepted: 09/08/2023] [Indexed: 10/10/2023] Open
Abstract
Gout is an autoinflammatory disease triggered by a complex innate immune response to MSU crystals and inflammatory triggers. While hyperuricemia is an obligatory risk factor for the development of gout, the majority of individuals with hyperuricemia never develop gout but have an increased risk of developing cardiometabolic disorders. Current management of gout aims at MSU crystal dissolution by lowering serum urate. We apply a targeted proteomic analysis, using Olink inflammation panel, to a large group of individuals with gout, asymptomatic hyperuricemia, and normouricemic controls, and we show a urate-driven inflammatory signature. We add in vivo evidence of persistent immune activation linked to urate exposure and describe immune pathways involved in the pathogenesis of gout. Our results support a pro-inflammatory effect of asymptomatic hyperuricemia and pave the way for new research into targetable mechanisms in gout and cardiometabolic complications of asymptomatic hyperuricemia.
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Affiliation(s)
- Georgiana Cabău
- Department of Medical Genetics, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Orsolya Gaal
- Department of Medical Genetics, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Internal Medicine, Radboudumc, Nijmegen, the Netherlands
| | - Medeea Badii
- Department of Medical Genetics, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Internal Medicine, Radboudumc, Nijmegen, the Netherlands
| | - Valentin Nica
- Department of Medical Genetics, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | | | - Ioana Hotea
- Department of Rheumatology, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - HINT-consortium
- Department of Medical Genetics, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Internal Medicine, Radboudumc, Nijmegen, the Netherlands
- Department of Rheumatology, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Immunology and Metabolism, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Cristina Pamfil
- Department of Rheumatology, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Radu A. Popp
- Department of Medical Genetics, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihai G. Netea
- Department of Internal Medicine, Radboudumc, Nijmegen, the Netherlands
- Department of Immunology and Metabolism, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Simona Rednic
- Department of Rheumatology, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Tania O. Crișan
- Department of Medical Genetics, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Internal Medicine, Radboudumc, Nijmegen, the Netherlands
| | - Leo A.B. Joosten
- Department of Medical Genetics, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Internal Medicine, Radboudumc, Nijmegen, the Netherlands
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2
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Țaranu I, Iancu M, Lazea C, Alkhzouz C, Răcătăianu N, Cătană CS, Mirea AM, Miclea D, Bolboacă SD, Drugan C. Evaluation of Circulating Chitotriosidase Activity in Children with Obesity. J Clin Med 2022; 11:jcm11133634. [PMID: 35806923 PMCID: PMC9267881 DOI: 10.3390/jcm11133634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/14/2022] [Accepted: 06/14/2022] [Indexed: 11/16/2022] Open
Abstract
Childhood obesity progresses to metabolic disturbances via low-grade inflammation. Identifying novel molecules that reflect the activity of the immune responses is critical in understanding its underlying pathogenesis. Our exploratory study aimed to evaluate the change of chitotriosidase (CHIT1) plasma activity according to Body Mass Index (BMI)-for-age z score in pediatric patients. The study evaluated 68 children consisting of 47.1% girls with a mean age of 12.47 ± 3.71 years and 52.9% boys with a mean age of 11.93 ± 3.18 years. The effect of the most frequent CHIT1 gene variants, the 24 base pair duplication (dup24) and G102S polymorphism, upon the association between circulating CHIT1 activity and the obesity level, was also investigated. A significantly higher logCHIT1 plasma activity was found in children with extreme obesity than in children with overweight (p = 0.048 for the uncorrected CHIT1 and 0.026 for the corrected CHIT1). The BMI-for-age z score significantly (p = 0.031) predicts increased CHIT1 activity in children with overweight, obesity, and extreme obesity after controlling for the two gene variants, age, gender, and time since weight gain. Dup24 and G102S polymorphism were significant independent predictors (p-values < 0.002) for the change of CHIT1 plasma activity. Circulating CHIT1 might be an accurate indicator of inflammation in children with obesity. Its role and the effect of the dup24 and G102S variants on the CHIT1 activity should be validated in a larger cohort.
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Affiliation(s)
- Ioana Țaranu
- Department of Medical Informatics and Biostatistics, Iuliu Hațieganu University of Medicine and Pharmacy, Louis Pasteur Str., No. 6, 400349 Cluj-Napoca, Romania; (I.Ț.); (M.I.); (S.D.B.)
- Pediatric Clinic 1, Emergency Pediatric Hospital, Calea Moților, No. 68, 400370 Cluj-Napoca, Romania;
| | - Mihaela Iancu
- Department of Medical Informatics and Biostatistics, Iuliu Hațieganu University of Medicine and Pharmacy, Louis Pasteur Str., No. 6, 400349 Cluj-Napoca, Romania; (I.Ț.); (M.I.); (S.D.B.)
| | - Cecilia Lazea
- Pediatric Clinic 1, Emergency Pediatric Hospital, Calea Moților, No. 68, 400370 Cluj-Napoca, Romania;
- Department Mother and Child, Iuliu Hațieganu University of Medicine and Pharmacy, Calea Moților, No. 68, 400370 Cluj-Napoca, Romania;
- Correspondence: ; Tel.: +40-744353764
| | - Camelia Alkhzouz
- Department Mother and Child, Iuliu Hațieganu University of Medicine and Pharmacy, Calea Moților, No. 68, 400370 Cluj-Napoca, Romania;
| | - Nicoleta Răcătăianu
- Integrated Ambulatory of Endocrinology, Infectious Diseases Clinical Hospital, Calea Moților, No. 19, 400000 Cluj-Napoca, Romania;
| | - Cristina-Sorina Cătană
- Department of Medical Biochemistry, Iuliu Haţieganu University of Medicine and Pharmacy Cluj-Napoca, Louis Pasteur Str., No. 6, 400349 Cluj-Napoca, Romania; (C.-S.C.); (C.D.)
| | - Andreea-Manuela Mirea
- Pediatric Clinic 1, Emergency Pediatric Hospital, Calea Moților, No. 68, 400370 Cluj-Napoca, Romania;
| | - Diana Miclea
- Department of Molecular Sciences, Iuliu Hațieganu University of Medicine and Pharmacy, Louis Pasteur Str., No. 6, 400349 Cluj-Napoca, Romania;
| | - Sorana D. Bolboacă
- Department of Medical Informatics and Biostatistics, Iuliu Hațieganu University of Medicine and Pharmacy, Louis Pasteur Str., No. 6, 400349 Cluj-Napoca, Romania; (I.Ț.); (M.I.); (S.D.B.)
| | - Cristina Drugan
- Department of Medical Biochemistry, Iuliu Haţieganu University of Medicine and Pharmacy Cluj-Napoca, Louis Pasteur Str., No. 6, 400349 Cluj-Napoca, Romania; (C.-S.C.); (C.D.)
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3
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Alkhzouz C, Bucerzan S, Miclaus M, Mirea AM, Miclea D. 46,XX DSD: Developmental, Clinical and Genetic Aspects. Diagnostics (Basel) 2021; 11:1379. [PMID: 34441313 PMCID: PMC8392837 DOI: 10.3390/diagnostics11081379] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/19/2021] [Accepted: 07/27/2021] [Indexed: 11/17/2022] Open
Abstract
Differences in sex development (DSD) in patients with 46,XX karyotype occur by foetal or postnatal exposure to an increased amount of androgens. These disorders are usually diagnosed at birth, in newborns with abnormal genitalia, or later, due to postnatal virilization, usually at puberty. Proper diagnosis and therapy are mostly based on the knowledge of normal development and molecular etiopathogenesis of the gonadal and adrenal structures. This review aims to describe the most relevant data that are correlated with the normal and abnormal development of adrenal and gonadal structures in direct correlation with their utility in clinical practice, mainly in patients with 46,XX karyotype. We described the prenatal development of structures together with the main molecules and pathways that are involved in sex development. The second part of the review described the physical, imaging, hormonal and genetic evaluation in a patient with a disorder of sex development, insisting more on patients with 46,XX karyotype. Further, 95% of the etiology in 46,XX patients with disorders of sex development is due to congenital adrenal hyperplasia, by enzyme deficiencies that are involved in the hormonal synthesis pathway. The other cases are explained by genetic abnormalities that are involved in the development of the genital system. The phenotypic variability is very important in 46,XX disorders of sex development and the knowledge of each sign, even the most discreet, which could reveal such disorders, mainly in the neonatal period, could influence the evolution, prognosis and life quality long term.
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Affiliation(s)
- Camelia Alkhzouz
- Mother and Child Department, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (C.A.); (S.B.)
- Genetic Department, Clinical Emergency Hospital for Children Cluj-Napoca, 400370 Cluj-Napoca, Romania; (M.M.); (A.-M.M.)
| | - Simona Bucerzan
- Mother and Child Department, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (C.A.); (S.B.)
- Genetic Department, Clinical Emergency Hospital for Children Cluj-Napoca, 400370 Cluj-Napoca, Romania; (M.M.); (A.-M.M.)
| | - Maria Miclaus
- Genetic Department, Clinical Emergency Hospital for Children Cluj-Napoca, 400370 Cluj-Napoca, Romania; (M.M.); (A.-M.M.)
| | - Andreea-Manuela Mirea
- Genetic Department, Clinical Emergency Hospital for Children Cluj-Napoca, 400370 Cluj-Napoca, Romania; (M.M.); (A.-M.M.)
| | - Diana Miclea
- Mother and Child Department, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (C.A.); (S.B.)
- Molecular Science Department, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
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Mirea AM, Pop RM, Căinap SS, Trifa AP. Presymptomatic diagnosis of CYP24A1-related infantile idiopathic hypercalcemia: A case report. Eur J Med Genet 2020; 63:104100. [PMID: 33186763 DOI: 10.1016/j.ejmg.2020.104100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/27/2020] [Accepted: 11/04/2020] [Indexed: 11/29/2022]
Abstract
Vitamin D plays an important role in calcium homeostasis and bone mineralization. Inefficient inactivation of vitamin D leads to a condition called idiopathic infantile hypercalcemia (IIH). In the last decade mutations in CYP24A1, the gene responsible for vitamin D inactivation, were described as the main molecular cause of IIH. In this study, we present a family with two daughters diagnosed with IIH due to two different mutations in CYP24A1 gene. Based on next-generation sequencing (NGS), the elder daughter was diagnosed as carrying the mutations CYP24A1: c.1186C > T; (p.Arg396Trp) and c.428_430del; (p.Glu143del). Within this context, we were able to presymptomatically diagnose her newborn sister using Sanger sequencing technique. Screening for CYP24A1 mutations in families with IIH history helps preventing disease manifestations in newborn siblings. Thus, NGS combined with Sanger sequencing validation opens up the perspective of preventive medicine with great impact on IIH management, where stopping vitamin D administration is enough to prevent disease manifestation, in most cases.
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Affiliation(s)
- Andreea-Manuela Mirea
- Department of Medical Genetics, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Raluca M Pop
- Department of Pharmacology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Simona Sorana Căinap
- 2(nd) Pediatric Clinic, Mother and Child Department, University of Medicine and Pharmacy Iuliu Haţieganu Cluj-Napoca, Emergency Clinical Hospital for Children, Cluj-Napoca, Romania
| | - Adrian P Trifa
- Department of Medical Genetics, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania; Department of Genetics, "Ion Chiricuta" Cancer Institute, Cluj-Napoca, Romania.
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5
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Mirea AM, Toonen EJM, van den Munckhof I, Munsterman ID, Tjwa ETTL, Jaeger M, Oosting M, Schraa K, Rutten JHW, van der Graaf M, Riksen NP, de Graaf J, Netea MG, Tack CJ, Chavakis T, Joosten LAB. Increased proteinase 3 and neutrophil elastase plasma concentrations are associated with non-alcoholic fatty liver disease (NAFLD) and type 2 diabetes. Mol Med 2019; 25:16. [PMID: 31046673 PMCID: PMC6498541 DOI: 10.1186/s10020-019-0084-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/17/2019] [Indexed: 02/07/2023] Open
Abstract
Introduction Non-alcoholic fatty liver disease (NAFLD) is becoming a major health problem worldwide. Inflammation plays an important role in disease pathogenesis and recent studies have shown a potential role for the neutrophil serine proteases (NSPs) proteinase-3 (PR3) and neutrophil elastase (NE) in NAFLD as well as an imbalance between NSPs and their natural inhibitor alpha-1 antitrypsin (AAT). The aim of this study was to investigate whether PR3 and NE plasma concentrations are associated with NAFLD and/or type 2 diabetes. Methods To explore this hypothesis we used several cohorts: a cohort of 271 obese individuals with liver steatosis, a cohort of 41 patients with biopsy-proven NAFLD, a cohort of 401 obese type 2 diabetes patients and a cohort of 205 lean healthy controls; and measured PR3 and NE plasma concentrations. In addition, we measured AAT plasma concentrations in order to investigate if the ratios between NSPs and their natural inhibitor were altered in NAFLD and type 2 diabetes when compared to healthy controls. Results Our data shows an increase in PR3 and NE concentrations and a decrease in AAT concentrations in obese patients when compared to controls. Moreover, PR3 plasma concentrations are increased in patients with liver steatosis. Furthermore, PR3 and NE concentrations in the liver are associated with the advanced stages of NAFLD characterized by NASH and/ or liver fibrosis. Additionally, PR3 and NE concentrations were up-regulated in patients with type 2 diabetes when compared to lean and obese controls. Conclusion We conclude that circulating levels of NSPs associate with obesity-related metabolic disorders. Further research is needed to clearly establish the role of these proteases and investigate whether they could be used as non-invasive markers for NAFLD and/or type 2 diabetes. Electronic supplementary material The online version of this article (10.1186/s10020-019-0084-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Andreea-Manuela Mirea
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands.,Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, 400349, Cluj-Napoca, Romania
| | - Erik J M Toonen
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands.,R&D Department, Hycult Biotechnology, Uden, The Netherlands
| | - Inge van den Munckhof
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Isabelle D Munsterman
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Eric T T L Tjwa
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Martin Jaeger
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Marije Oosting
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Kiki Schraa
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Joost H W Rutten
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Marinette van der Graaf
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Niels P Riksen
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Jacqueline de Graaf
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands.,Department for Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, 53115, Bonn, Germany
| | - Cees J Tack
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital Carl-Gustav-Carus, TU Dresden, Dresden, Germany.,Paul Langerhans Institute Dresden of the Helmholtz Zentrum München at the University Hospital and Faculty of Medicine Carl Gustav Carus of TU Dresden, Dresden, Germany; and German Center for Diabetes Research (DZD e.V.), Neuherberg, Germany, Dresden, Germany.,German Center for Diabetes Research (DZD e.V.), Neuherberg, Germany
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands. .,Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, 400349, Cluj-Napoca, Romania.
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Mirea AM, Tack CJ, Chavakis T, Joosten LAB, Toonen EJM. IL-1 Family Cytokine Pathways Underlying NAFLD: Towards New Treatment Strategies. Trends Mol Med 2018; 24:458-471. [PMID: 29665983 PMCID: PMC5939989 DOI: 10.1016/j.molmed.2018.03.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/11/2018] [Accepted: 03/12/2018] [Indexed: 02/07/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease worldwide. Pathways responsible for the activation of IL-1 family cytokines are key in the development of NAFLD but underlying mechanisms are not fully understood. Many studies have focused on the inflammasome-caspase-1 pathway and have shown that this pathway is an important inducer of inflammation in NAFLD. However, this pathway is not solely responsible for the activation of proinflammatory cytokines. Also, neutrophil serine proteases (NSPs) are capable of activating cytokines and recent studies reported that these proteases also contribute to NAFLD. These studies provided, for the first time, evidence that this inflammasome-independent pathway is involved in NAFLD. In our opinion, these new insights open up new approaches for therapeutic intervention.
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Affiliation(s)
- Andreea-Manuela Mirea
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Cees J Tack
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic Carl-Gustav-Carus, Technische Universität Dresden, Dresden, Germany
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Erik J M Toonen
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; R&D Department, Hycult Biotech, Uden, The Netherlands.
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Boutens L, Mirea AM, van den Munckhof I, Doppenberg-Oosting M, Jaeger M, Hijmans A, Netea MG, Joosten LAB, Stienstra R. A role for TLR10 in obesity and adipose tissue morphology. Cytokine 2018; 108:205-212. [PMID: 29698883 DOI: 10.1016/j.cyto.2018.03.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/13/2018] [Accepted: 03/17/2018] [Indexed: 12/25/2022]
Abstract
Toll like receptors (TLRs) are expressed in adipose tissue and promote adipose tissue inflammation during obesity. Recently, anti-inflammatory properties have been attributed to TLR10 in myeloid cells, the only member of the TLR family with inhibitory activity. In order to assess whether TLR10-induced inhibition of inflammation may be protective during the development of obesity and metabolic abnormalities we used transgenic human TLR10 mice (hTLR10tg) and wild type (WT) controls on a C57B6J background. HFD-feeding enhanced TLR10 expression in the adipose tissue, and HFD-fed hTLR10tg mice displayed reduced adipocyte size, adipose tissue weight, and a trend toward lower plasma insulin levels compared to WT mice. In humans, obese individuals with polymorphisms in the TLR10 gene displayed reduced macrophage infiltration in the adipose tissue accompanied by a trend to lower leptin levels and higher adiponectin levels in plasma. In healthy individuals with the same polymorphisms in the TLR10 gene we did not observe any difference in plasma concentrations of leptin and adiponectin. We conclude that TLR10 impacts adipose tissue morphology in obesity. Larger studies in humans are warranted to assess its potential value as therapeutic target in metabolic syndrome and type 2 diabetes.
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Affiliation(s)
- Lily Boutens
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Andreea-Manuela Mirea
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Inge van den Munckhof
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Martin Jaeger
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Anneke Hijmans
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Department for Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, 53115 Bonn, Germany
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania.
| | - Rinke Stienstra
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
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8
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Toonen EJM, Mirea AM, Tack CJ, Stienstra R, Ballak DB, van Diepen JA, Hijmans A, Chavakis T, Dokter WH, Pham CTN, Netea MG, Dinarello CA, Joosten LAB. Activation of proteinase 3 contributes to Non-alcoholic Fatty Liver Disease (NAFLD) and insulin resistance. Mol Med 2016; 22:molmed.2016.00033. [PMID: 27261776 DOI: 10.2119/molmed.2016.00033] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 05/16/2016] [Indexed: 01/29/2023] Open
Abstract
Activation of inflammatory pathways is known to accompany development of obesity-induced non-alcoholic fatty liver disease (NAFLD), insulin resistance and type 2 diabetes. In addition to caspase-1, the neutrophil serine proteases proteinase 3, neutrophil elastase and cathepsin G are able to process the inactive pro-inflammatory mediators IL-1β and IL-18 to their bioactive forms, thereby regulating inflammatory responses. In the present study, we investigated whether proteinase 3 is involved in obesity-induced development of insulin resistance and NAFLD. We investigated the development of NAFLD and insulin resistance in mice deficient for neutrophil elastase/proteinase 3 and neutrophil elastase/cathepsin G and in wild-type mice treated with the neutrophil serine proteinase inhibitor human alpha-1 antitrypsin. Expression profiling of metabolically relevant tissues obtained from insulin resistant mice showed that expression of proteinase 3 was specifically upregulated in the liver, whereas neutrophil elastase, cathepsin G and caspase-1 were not. Neutrophil elastase/proteinase 3 deficient mice showed strongly reduced levels of lipids in the liver after fed a high fat diet. Moreover, these mice were resistant to high fat diet-induced weight gain, inflammation and insulin resistance. Injection of proteinase 3 exacerbated insulin resistance in caspase-1(-/-) mice, indicating that proteinase 3 acts independently of caspase-1. Treatment with alpha-1 antitrypsin during the last 10 days of a 16 week high fat diet reduced hepatic lipid content and decreased fasting glucose levels. We conclude that proteinase 3 is involved in NAFLD and insulin resistance and that inhibition of proteinase 3 may have therapeutic potential.
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Affiliation(s)
- Erik J M Toonen
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Andreea-Manuela Mirea
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Cees J Tack
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Rinke Stienstra
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands.,Nutrition, Metabolism and Genomics Group, Wageningen University and Research Centre, Wageningen, The Netherlands
| | - Dov B Ballak
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Janna A van Diepen
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Anneke Hijmans
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Triantafyllos Chavakis
- Department of Clinical Pathobiochemistry, University Clinic Carl-Gustav-Carus, Technische Universität Dresden, Dresden, Germany
| | - Wim H Dokter
- Synthon Research Laboratories, Nijmegen, The Netherlands
| | - Christine T N Pham
- Department of Medicine, Division of Rheumatology, Washington University School of Medicine, St. Louis, MO, USA
| | - Mihai G Netea
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Charles A Dinarello
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands.,Department of Medicine, University of Colorado Denver, Aurora, CO, USA
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
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