1
|
Jakab S, Bálint Á, Cseri K, Bali K, Kaszab E, Domán M, Halas M, Szarka K, Bányai K. Genome stability assessment of PRRS vaccine strain with new ARTIC-style sequencing protocol. Front Vet Sci 2024; 10:1327725. [PMID: 38260197 PMCID: PMC10800885 DOI: 10.3389/fvets.2023.1327725] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
A tiling amplicon sequencing protocol was developed to analyse the genome sequence stability of the modified live PRRSV vaccine strain, Porcilis MLV. The backbone of the ARTIC-style protocol was formed by 34 individual primer pairs, which were divided into two primer pools. Primer pairs were designed to amplify 532 to 588 bp fragments of the corresponding genomic region. The amplicons are suitable for sequencing on Illumina DNA sequencers with available 600-cycle sequencing kits. The concentration of primer pairs in the pools was optimized to obtain a balanced sequencing depth along the genome. Deep sequencing data of three vaccine batches were also analysed. All three vaccine batches were very similar to each other, although they also showed single nucleotide variations (SNVs) affecting less than 1 % of the genome. In the three vaccine strains, 113 to 122 SNV sites were identified; at these sites, the minority variants represented a frequency range of 1 to 48.7 percent. Additionally, the strains within the batches contained well-known length polymorphisms; the genomes of these minority deletion mutants were 135 to 222 bp shorter than the variant with the complete genome. Our results show the usefulness of ARTIC-style protocols in the evaluation of the genomic stability of PRRS MLV strains.
Collapse
Affiliation(s)
- Szilvia Jakab
- Pathogen Discovery Group, HUN-REN Veterinary Medical Research Institute, Budapest, Hungary
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Budapest, Hungary
| | - Ádám Bálint
- Veterinary Diagnostic Directorate, National Food Chain Safety Office, Budapest, Hungary
| | - Karolina Cseri
- One Health Institute, University of Debrecen, Debrecen, Hungary
- Department of Metagenomics, University of Debrecen, Debrecen, Hungary
| | - Krisztina Bali
- Pathogen Discovery Group, HUN-REN Veterinary Medical Research Institute, Budapest, Hungary
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Budapest, Hungary
| | - Eszter Kaszab
- Pathogen Discovery Group, HUN-REN Veterinary Medical Research Institute, Budapest, Hungary
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Budapest, Hungary
- One Health Institute, University of Debrecen, Debrecen, Hungary
| | - Marianna Domán
- Pathogen Discovery Group, HUN-REN Veterinary Medical Research Institute, Budapest, Hungary
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Budapest, Hungary
| | | | - Krisztina Szarka
- One Health Institute, University of Debrecen, Debrecen, Hungary
- Department of Metagenomics, University of Debrecen, Debrecen, Hungary
| | - Krisztián Bányai
- Pathogen Discovery Group, HUN-REN Veterinary Medical Research Institute, Budapest, Hungary
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Budapest, Hungary
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, Budapest, Hungary
| |
Collapse
|
2
|
Cseri K, Szentesi P, Csernoch L. IL-6 production of C2C12 cells is enhanced in the presence of macrophages and pravastatin. Gen Physiol Biophys 2021; 40:307-315. [PMID: 34350835 DOI: 10.4149/gpb_2021017] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/20/2021] [Indexed: 11/08/2022]
Abstract
Skeletal muscle secrets several bioactive molecules known as myokines. Interleukin-6 (IL-6) has been described as a myokine secreted in response to skeletal muscle injury as well as to macrophage invasion in inflammation. To our knowledge no connection between macrophages and skeletal muscle regarding IL-6 secretion has been described so far. Here we report that co-culturing of C2C12 cells with RAW macrophages enhances IL-6 secretion of the cells cultured together. However, this is not seen in cross-feeding experiments, where culture medium of RAW macrophage culture is used as the culture medium of C2C12 cells or vice versa. Pravastatin, known to induce myopathy, also stimulates IL-6 production in monocultured C2C12 cells and elevates IL-6 concentration in the culture medium of the co-cultures. These results indicate an intricate interaction between skeletal muscle and macrophages in inflammation related to IL-6 production.
Collapse
Affiliation(s)
- Karolina Cseri
- Department of Physiology, Faculty of Medicine, University of Debrecen, Hungary
| | | | | |
Collapse
|
3
|
Gönczi M, Szabó L, Ráduly Z, Dobrosi N, Kis G, Cseri K, Dienes B, Csernoch L. Mitochondrial Organization is Severly Modified in Skeletal Muscles of Septin 7 Knockdown Animals. Biophys J 2020. [DOI: 10.1016/j.bpj.2019.11.1589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
4
|
Csóka B, Törő G, Vindeirinho J, Varga ZV, Koscsó B, Németh ZH, Kókai E, Antonioli L, Suleiman M, Marchetti P, Cseri K, Deák Á, Virág L, Pacher P, Bai P, Haskó G. A 2A adenosine receptors control pancreatic dysfunction in high-fat-diet-induced obesity. FASEB J 2017; 31:4985-4997. [PMID: 28765173 DOI: 10.1096/fj.201700398r] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 05/01/2017] [Accepted: 07/10/2017] [Indexed: 12/16/2022]
Abstract
Adenosine, a key extracellular signaling mediator, regulates several aspects of metabolism by activating 4 G-protein-coupled receptors, the A1, A2A, A2B, and A3 adenosine receptors (ARs). The role of A2AARs in regulating high-fat-diet (HFD)-induced metabolic derangements is unknown. To evaluate the role of A2AARs in regulating glucose and insulin homeostasis in obesity, we fed A2AAR-knockout (KO) and control mice an HFD for 16 wk to initiate HFD-induced metabolic disorder. We found that genetic deletion of A2AARs caused impaired glucose tolerance in mice fed an HFD. This impaired glucose tolerance was caused by a decrease in insulin secretion but not in insulin sensitivity. Islet size and insulin content in pancreata of A2AAR-deficient mice were decreased compared with control mice after consuming an HFD. A2AAR-KO mice had decreased expression of the β-cell-specific markers pdx1, glut2, mafA, and nkx6.1 and increased expression of the dedifferentiation markers sox2 and hes1. Ex vivo islet experiments confirmed the role of A2AARs in protecting against decreased insulin content and release caused by HFD. Other experiments with bone marrow chimeras revealed that inflammation was not the primary cause of decreased insulin secretion in A2AAR-KO mice. Altogether, our data showed that A2AARs control pancreatic dysfunction in HFD-induced obesity.-Csóka, B., Törő, G., Vindeirinho, J., Varga, Z. V., Koscsó, B., Németh, Z. H., Kókai, E., Antonioli, L., Suleiman, M., Marchetti, P., Cseri, K., Deák, Á., Virág, L., Pacher, P., Bai, P., Haskó, G. A2A adenosine receptors control pancreatic dysfunction in high-fat-diet-induced obesity.
Collapse
Affiliation(s)
- Balázs Csóka
- Department of Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA; .,Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Gábor Törő
- Department of Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA.,Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Joana Vindeirinho
- Department of Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Zoltán V Varga
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Balázs Koscsó
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Zoltán H Németh
- Department of Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA.,Department of Surgery, Morristown Memorial Medical Center, Morristown, New Jersey, USA
| | - Endre Kókai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Luca Antonioli
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Mara Suleiman
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Piero Marchetti
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Karolina Cseri
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ádám Deák
- Department of Operative Techniques and Surgical Research of the Institute of Surgery, University of Debrecen, Debrecen, Hungary; and
| | - László Virág
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Cell Biology and Signalling Research Group of the Hungarian Academy of Sciences, Debrecen, Hungary
| | - Pál Pacher
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Cell Biology and Signalling Research Group of the Hungarian Academy of Sciences, Debrecen, Hungary
| | - György Haskó
- Department of Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA; .,Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA.,Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| |
Collapse
|
5
|
Pellegrini C, Fornai M, Colucci R, Tirotta E, Blandini F, Levandis G, Cerri S, Segnani C, Ippolito C, Bernardini N, Cseri K, Blandizzi C, Haskó G, Antonioli L. Alteration of colonic excitatory tachykininergic motility and enteric inflammation following dopaminergic nigrostriatal neurodegeneration. J Neuroinflammation 2016; 13:146. [PMID: 27295950 PMCID: PMC4907252 DOI: 10.1186/s12974-016-0608-5] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [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: 03/01/2016] [Accepted: 05/31/2016] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Parkinson's disease (PD) is frequently associated with gastrointestinal (GI) symptoms, including constipation and defecatory dysfunctions. The mechanisms underlying such disorders are still largely unknown, although the occurrence of a bowel inflammatory condition has been hypothesized. This study examined the impact of central dopaminergic degeneration, induced by intranigral injection of 6-hydroxydopamine (6-OHDA), on distal colonic excitatory tachykininergic motility in rats. METHODS Animals were euthanized 4 and 8 weeks after 6-OHDA injection. Tachykininergic contractions, elicited by electrical stimulation or exogenous substance P (SP), were recorded in vitro from longitudinal muscle colonic preparations. SP, tachykininergic NK1 receptor, and glial fibrillary acidic protein (GFAP) expression, as well as the density of eosinophils and mast cells in the colonic wall, were examined by immunohistochemical analysis. Malondialdehyde (MDA, colorimetric assay), TNF, and IL-1β (ELISA assay) levels were also examined. The polarization of peritoneal macrophages was evaluated by real-time PCR. RESULTS In colonic preparations, electrically and SP-evoked tachykininergic contractions were increased in 6-OHDA rats. Immunohistochemistry displayed an increase in SP and GFAP levels in the myenteric plexus, as well as NK1 receptor expression in the colonic muscle layer of 6-OHDA rats. MDA, TNF, and IL-1β levels were increased also in colonic tissues from 6-OHDA rats. In 6-OHDA rats, the number of eosinophils and mast cells was increased as compared with control animals, and peritoneal macrophages polarized towards a pro-inflammatory phenotype. CONCLUSIONS The results indicate that the induction of central nigrostriatal dopaminergic degeneration is followed by bowel inflammation associated with increased oxidative stress, increase in pro-inflammatory cytokine levels, activation of enteric glia and inflammatory cells, and enhancement of colonic excitatory tachykininergic motility.
Collapse
Affiliation(s)
- Carolina Pellegrini
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126, Pisa, Italy
| | - Matteo Fornai
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126, Pisa, Italy.
| | - Rocchina Colucci
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131, Padova, Italy
| | - Erika Tirotta
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126, Pisa, Italy
| | - Fabio Blandini
- Laboratory of Functional Neurochemistry, Center for Research in Neurodegenerative Diseases, "C. Mondino" National Neurological Institute, 27100, Pavia, Italy
| | - Giovanna Levandis
- Laboratory of Functional Neurochemistry, Center for Research in Neurodegenerative Diseases, "C. Mondino" National Neurological Institute, 27100, Pavia, Italy
| | - Silvia Cerri
- Laboratory of Functional Neurochemistry, Center for Research in Neurodegenerative Diseases, "C. Mondino" National Neurological Institute, 27100, Pavia, Italy
| | - Cristina Segnani
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126, Pisa, Italy
| | - Chiara Ippolito
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126, Pisa, Italy
| | - Nunzia Bernardini
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126, Pisa, Italy
| | - Karolina Cseri
- Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, 4032, Hungary
| | - Corrado Blandizzi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126, Pisa, Italy
| | - György Haskó
- Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, 07103, NJ, USA
| | - Luca Antonioli
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126, Pisa, Italy.,Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, 07103, NJ, USA
| |
Collapse
|
6
|
Csóka B, Németh ZH, Törő G, Idzko M, Zech A, Koscsó B, Spolarics Z, Antonioli L, Cseri K, Erdélyi K, Pacher P, Haskó G. Extracellular ATP protects against sepsis through macrophage P2X7 purinergic receptors by enhancing intracellular bacterial killing. FASEB J 2015; 29:3626-37. [PMID: 26060214 DOI: 10.1096/fj.15-272450] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/27/2015] [Indexed: 12/20/2022]
Abstract
Extracellular ATP binds to and signals through P2X7 receptors (P2X7Rs) to modulate immune function in both inflammasome-dependent and -independent manners. In this study, P2X7(-/-) mice, the pharmacological agonists ATP-magnesium salt (Mg-ATP; 100 mg/kg, EC50 ≈ 1.32 mM) and benzoylbenzoyl-ATP (Bz-ATP; 10 mg/kg, EC50 ≈ 285 μM), and antagonist oxidized ATP (oxi-ATP; 40 mg/kg, IC50 ≈ 100 μM) were used to show that P2X7R activation is crucial for the control of mortality, bacterial dissemination, and inflammation in cecal ligation and puncture-induced polymicrobial sepsis in mice. Our results with P2X7(-/-) bone marrow chimeric mice, adoptive transfer of peritoneal macrophages, and myeloid-specific P2X7(-/-) mice indicate that P2X7R signaling on macrophages is essential for the protective effect of P2X7Rs. P2X7R signaling protects through enhancing bacterial killing by macrophages, which is independent of the inflammasome. By using the connexin (Cx) channel inhibitor Gap27 (0.1 mg/kg, IC50 ≈ 0.25 μM) and pannexin channel inhibitor probenecid (10 mg/kg, IC50 ≈ 11.7 μM), we showed that ATP release through Cx is important for inhibiting inflammation and bacterial burden. In summary, targeting P2X7Rs provides a new opportunity for harnessing an endogenous protective immune mechanism in the treatment of sepsis.
Collapse
Affiliation(s)
- Balázs Csóka
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Zoltán H Németh
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Gábor Törő
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Marco Idzko
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Andreas Zech
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Balázs Koscsó
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Zoltán Spolarics
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Luca Antonioli
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Karolina Cseri
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Katalin Erdélyi
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Pál Pacher
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - György Haskó
- *Department of Surgery and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA; Department of Surgery, Morristown Medical Center, Morristown, New Jersey, USA; Department of Pneumology, Freiburg University Medical Center, Albert-Ludwigs-University, Freiburg, Germany; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Department of Medical Chemistry, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary; and National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| |
Collapse
|
7
|
Törőcsik D, Kovács D, Camera E, Lovászi M, Cseri K, Nagy GG, Molinaro R, Rühl R, Tax G, Szabó K, Picardo M, Kemény L, Zouboulis CC, Remenyik É. Leptin promotes a proinflammatory lipid profile and induces inflammatory pathways in human SZ95 sebocytes. Br J Dermatol 2014; 171:1326-35. [PMID: 24975960 DOI: 10.1111/bjd.13229] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2014] [Indexed: 12/24/2022]
Abstract
BACKGROUND Leptin, the adipocyte-secreted hormone that regulates weight, is known to link lipid metabolism with inflammation in various cell types. However, its role in human sebocytes has not yet been investigated. OBJECTIVES The purpose of this study was to investigate the effects of leptin in human sebaceous gland biology. METHODS Expression of the long form of the leptin receptor (Ob-Rb) was detected by real-time quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) and immunochemistry. Lipid analysis was by high-performance thin-layer chromatography, gas chromatography-mass spectrometry and time-of-flight mass spectrometer mass detection. Lipid bodies were visualized by BODIPY staining using fluorescent microscopy and measured by flow cytometry. Interleukin (IL)-6 and IL-8 mRNA levels were assessed by real-time qRT-PCR and their release was evaluated by enzyme-linked immunosorbent assay. Cyclooxygenase (COX)-2 and 5-lipooxygenase (LOX) protein expression and phosphorylation of p65 and signal transducer and activator of transcription (STAT)-3 were determined by Western blot analysis. RESULTS Expression of Ob-Rb was detected in human sebaceous glands and in cultured human SZ95 sebocytes. The treatment of SZ95 sebocytes with leptin led to enlarged intracellular lipid bodies, increased ratios of unsaturated/saturated fatty acids and decreased vitamin E levels. Further supporting a proinflammatory role, leptin induced COX-2 and 5-LOX expression in SZ95 sebocytes and augmented the production of IL-6 and IL-8 cytokines. On leptin treatment, the STAT-3 and nuclear factor-κB pathways were activated, indicating that these known leptin signalling pathways are active in human sebocytes. CONCLUSIONS Our findings suggest that leptin signalling may be involved in the proinflammatory regulation of sebaceous lipid metabolism and the induction of inflammatory enzymes and cytokines.
Collapse
Affiliation(s)
- D Törőcsik
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, H4032, Hungary
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Abstract
Idiopathic inflammatory myopathies are systemic autoimmune diseases characterized by symmetrical proximal muscle weakness. One of them is the subgroup of necrotizing autoimmune myopathy, which has recently been recognized as a separate entity. In addition to the typical symmetrical muscle weakness, it is characterized by very high creatine kinase levels, myopathic triad in the electromyography, and myocyte necrosis without significant inflammation. The paper aims to review this rare entity, which has to be diagnosed and treated quickly in every case.
Collapse
Affiliation(s)
- Levente Bodoki
- Debreceni Egyetem, Belgyógyászati Klinika, Klinikai Immunológiai Tanszék Debrecen.
| | | | | | | | | | | | | |
Collapse
|