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Talaat RM, Elsayed SS, Abdel-Hakem NE, El-Shenawy SZ. Genetic Polymorphism in Toll-Like Receptor 3 and Interferon Regulatory Factor 3 in Hepatitis C Virus-Infected Patients: Correlation with Liver Cirrhosis. Viral Immunol 2022; 35:609-615. [PMID: 36048530 DOI: 10.1089/vim.2022.0058] [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: 11/13/2022] Open
Abstract
Host genetic factors could play a primary role in determining the risk for cirrhosis development in chronic hepatitis C virus (HCV)-infected patients. We designed this work to study the effect of single-nucleotide polymorphism (SNP) in Toll-like receptor 3 (TLR3) and interferon regulatory factor (IRF) on the risk of HCV-related cirrhosis. This study enrolled 139 Egyptian HCV-infected patients. They were divided into patients with cirrhotic (56) and noncirrhotic (83) liver. Genotyping of rs3775291 F459F (+1234C/T) and rs3775290 L412F (+1377C/T) in TLR3 and IRF3 rs2304204 (-925A/G) was performed by restriction fragment length polymorphism-polymerase chain reaction. Although there is no significant difference in genotype and allele distribution of +1377C/T of TLR3 gene between cirrhotic and noncirrhotic subjects, CC (odds ratio [OR] = 1.572, 95% confidence interval [CI]: 0.781-3.164); TT (OR = 1.463, 95% CI: 0.351-6.104) genotypes might be considered as risk factors for liver cirrhosis. On the contrary, the analysis revealed that only one genotype (CC) and one allele (C) were detected in +1234C/T SNP, with the total disappearance of CT/TT genotypes and T allele in all subjects. On the contrary, lower frequency has been found for the AG genotype of the IRF3 (-925A/G) gene in cirrhotic patients compared with noncirrhotic ones, indicating that AG is a protective genotype (OR = 0.509, 95% CI: 0.256-1.012). Our data stressed the association of AG genotype SNP in IRF3 (-925A/G) in protection against the worth outcome of HCV infection.
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Affiliation(s)
- Roba M Talaat
- Molecular Biology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), University of Sadat City (USC), Sadat City Egypt
| | - Shimaa S Elsayed
- Molecular Biology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), University of Sadat City (USC), Sadat City Egypt
| | - Nehal E Abdel-Hakem
- Molecular Biology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), University of Sadat City (USC), Sadat City Egypt
| | - Soha Z El-Shenawy
- Hepatology Department, National Liver Institute (NLI), Menoufia University, Shebeen El-Kom, Egypt
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Chen X, Zhao MZ, Miao BP, Liu ZQ, Yang G, Liu JQ, Yang PC, Song JP. Inhibition of Bcl2L12 Attenuates Eosinophilia-Related Inflammation in the Heart. Front Immunol 2020; 11:1955. [PMID: 33013849 PMCID: PMC7516035 DOI: 10.3389/fimmu.2020.01955] [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: 03/05/2020] [Accepted: 07/20/2020] [Indexed: 11/25/2022] Open
Abstract
Background: The eosinophilic inflammation plays a critical role in myocarditis (Mcd); its underlying mechanism remains to be further elucidated. This study aims to investigate the role of Bcl2-like protein 12 (Bcl2L12) in inducing the defects of apoptosis in eosinophils (Eos) of the heart tissues. Methods: Human explant heart samples were collected. Eosinophilia and myocarditis (Mcd)-like inflammation were induced in the mouse heart by immunizing with murine cardiac α-myosin heavy chain (MyHCα) peptides. Results: Markedly more Eos were observed in heart tissues from patients with Mcd than those from patients with dilated cardiomyopathy. Eos isolated from Mcd hearts showed the signs of apoptosis defects. The Eo counts in the Mcd heart tissues were positively correlated with the Bcl2L12 expression in Eos isolated from the heart tissues. Exposure to interleukin 5 in the culture induced the expression of Bcl2L12 in Eos. Bcl2L12 bound c-Myc, the transcription factor of Fas ligand (FasL), to prevent c-Myc from binding to the FasL promoter, to restrict the FasL gene transcription in Eos. Inhibition of Bcl2L12 prevented the induction of eosinophilia and Mcd-like inflammation in the mouse heart. Conclusions: The Bcl2L12 expression contributes to apoptosis defects in Eos of the Mcd heart. Blocking Bcl2L12 prevents the eosinophilia induction and alleviates Mcd-like inflammation in mice.
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Affiliation(s)
- Xiao Chen
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mei-Zhen Zhao
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Bei-Ping Miao
- Department of Otolaryngology, First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Zhi-Qiang Liu
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Gui Yang
- Department of Otolaryngology, Longgang Central Hospital, Shenzhen, China
| | - Jiang-Qi Liu
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Ping-Chang Yang
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China.,Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China
| | - Jiang-Ping Song
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Zheng PY, Geng XR, Hong JY, Yang G, Liu JQ, Mo LH, Feng Y, Zhang YY, Liu T, Ran P, Liu ZG, Yang PC. Regulating Bcl2L12 expression in mast cells inhibits food allergy. Am J Cancer Res 2019; 9:4982-4992. [PMID: 31410196 PMCID: PMC6691383 DOI: 10.7150/thno.34001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 05/23/2019] [Indexed: 12/16/2022] Open
Abstract
Rationale: Mast cells play a crucial role in allergic diseases. Yet, the regulation of mast cell bioactivities is not fully understood. This study aims to elucidate the role of B cell lymphoma 2 like protein 12 (Bcl2L12), one of the anti-apoptosis proteins, in regulating mast cell apoptosis. Methods: A food allergy (FA) mouse model was developed to establish mast cell over population in the intestinal tissue. Either compound 48/80 (C48/80) or specific antigens were used to activate mast cells in the intestinal mucosa. Results: After treating with C48/80, apoptosis was induced in mast cells of the intestine of naive control mice, but not in FA mice. The expression of Fas ligand (FasL) was lower in the mast cells of FA mice. Interleukin (IL)-5 was responsible for the suppression of FasL by upregulating the expression of Bcl2L12 in mast cells. Bcl2L12 prevented c-Myc, the major transcription factor of FasL, from binding the FasL promoter to inhibit the expression of FasL in mast cells. Inhibition of Bcl2L12 restored the apoptosis machinery of mast cells in the FA mouse intestine. Conclusions: The apoptosis machinery in mast cells is impaired in an allergic environment. Inhibition of Bcl2L12 restores the apoptosis machinery in mast cells in the FA mouse intestine.
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Real LM, Macías J, Rivero-Juárez A, Téllez F, Merino D, Moreno-Grau S, Orellana A, Gómez-Salgado J, Sáez ME, Frías M, Corma-Gómez A, Merchante N, Ruiz A, Caruz A, Pineda JA. Genetic markers of lipid metabolism genes associated with low susceptibility to HCV infection. Sci Rep 2019; 9:9054. [PMID: 31227787 PMCID: PMC6588564 DOI: 10.1038/s41598-019-45389-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 06/04/2019] [Indexed: 02/07/2023] Open
Abstract
Due to the relation between lipids and Hepatitis C virus (HCV) life-cycle, we aimed to explore the existence of single nucleotide polymorphisms (SNPs) associated with low susceptibility to HCV-infection within lipid metabolism genes. This was a case-control study in three phases: (I) allelic frequencies of 9 SNPs within 6 genes were compared in 404 HCV-infected patients and 801 population controls; (II) results were validated in 602 HCV-infected individuals and 1352 controls; (III) results were confirmed in 30 HCV-exposed uninfected (EU) individuals. In phase I, only the LDLRAP1-rs4075184-A allele was differentially distributed in patients and controls (358 of 808 alleles [44.3%] and 807 of 1602 alleles [50.3%], respectively) (p = 0.004). In phase II, the A allele frequency was 547 of 1204 alleles (45.4%) in patients and 1326 of 2704 alleles (49.0%) in controls (p = 0.037). This frequency in EU was 36 of 60 alleles (60%), which was higher than that observed in patients from phase I (p = 0.018) and phase II (p = 0.027). The LDLRAP1-mRNA expression was lower in AA carriers than in non-AA carriers (median [Q1-Q3]: 0.85 [0.17–1.75] relative-units [ru] versus 1.71 [1.00–2.73] ru; p = 0.041). Our results suggest that LDLRAP1-rs4075184-A allele is associated with lower susceptibility to HCV-infection and with reduced expression of LDLRAP1-mRNA.
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Affiliation(s)
- Luis Miguel Real
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain. .,Departamento de Bioquímica, Biología Molecular e Inmunología, Facultad de Medicina, Universidad de Malaga, Málaga, Spain.
| | - Juan Macías
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain
| | - Antonio Rivero-Juárez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBC), Hospital Universitario Reina Sofía de Córdoba, Universidad de Córdoba, Cordoba, Spain
| | - Francisco Téllez
- Hospital Universitario de Puerto Real, Instituto de Investigación e Innovación de la Provincia de Cádiz, Cádiz, Spain
| | - Dolores Merino
- Unidad de Enfermedades Infecciosas, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
| | - Sonia Moreno-Grau
- Fundació ACE-Institut Català de Neurociències Aplicades, Universidad Internacional de Catalunya (UIC), Barcelona, Spain
| | - Adelina Orellana
- Fundació ACE-Institut Català de Neurociències Aplicades, Universidad Internacional de Catalunya (UIC), Barcelona, Spain
| | | | - María E Sáez
- Centro Andaluz de Estudios Bioinformáticos (CAEBI, SL), Sevilla, Spain
| | - Mario Frías
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBC), Hospital Universitario Reina Sofía de Córdoba, Universidad de Córdoba, Cordoba, Spain
| | - Anaïs Corma-Gómez
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain
| | - Nicolás Merchante
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain
| | - Agustín Ruiz
- Fundació ACE-Institut Català de Neurociències Aplicades, Universidad Internacional de Catalunya (UIC), Barcelona, Spain
| | - Antonio Caruz
- Unidad de Inmunogenética, Universidad de Jaén, Jaén, Spain
| | - Juan A Pineda
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain
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Feng BS, Wu YJ, Hong JY, Geng XR, Liu JQ, Liu ZG, Zheng PY, Yang PC. Bcl2L12 plays a critical role in the development of intestinal allergy. Immunol Lett 2018; 203:87-94. [DOI: 10.1016/j.imlet.2018.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 08/01/2018] [Accepted: 09/03/2018] [Indexed: 12/15/2022]
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An YF, Wu YJ, Zeng XH, Song LJ, Ma F, Liao WJ, Liu ZQ, Yang G, Zhang XW, Liu ZG, Zhao CQ, Yang PC. B cell lymphoma-2-like protein-12 association with T-helper 2 inflammation in chronic rhinosinusitis with allergy. Int Forum Allergy Rhinol 2018; 8:1300-1307. [PMID: 30281927 DOI: 10.1002/alr.22223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 09/10/2018] [Accepted: 09/12/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Yun-Fang An
- Department of Otolaryngology; Head & Neck Surgery, the Second Hospital, Shanxi Medical University; Taiyuan China
| | - Yong-Jin Wu
- Ear-Nose-Throat (ENT) Institute and Research Center of Allergy & Immunology; Shenzhen University School of Medicine; Shenzhen China
- Longgang Ear-Nose-Throat (ENT) Hospital; Shenzhen China
| | - Xian-Hai Zeng
- Ear-Nose-Throat (ENT) Institute and Research Center of Allergy & Immunology; Shenzhen University School of Medicine; Shenzhen China
- Longgang Ear-Nose-Throat (ENT) Hospital; Shenzhen China
| | - Li-Juan Song
- Department of Otolaryngology, Head & Neck Surgery, the First Hospital; Guangzhou Medical University; Guangzhou China
| | - Fei Ma
- Department of Otolaryngology, Head & Neck Surgery, the First Hospital; Guangzhou Medical University; Guangzhou China
| | - Wen-Jing Liao
- Department of Otolaryngology, Head & Neck Surgery, the First Hospital; Guangzhou Medical University; Guangzhou China
| | - Zhi-Qiang Liu
- Ear-Nose-Throat (ENT) Institute and Research Center of Allergy & Immunology; Shenzhen University School of Medicine; Shenzhen China
- Longgang Ear-Nose-Throat (ENT) Hospital; Shenzhen China
| | - Gui Yang
- Ear-Nose-Throat (ENT) Institute and Research Center of Allergy & Immunology; Shenzhen University School of Medicine; Shenzhen China
- Longgang Ear-Nose-Throat (ENT) Hospital; Shenzhen China
| | - Xiao-Wen Zhang
- Department of Otolaryngology, Head & Neck Surgery, the First Hospital; Guangzhou Medical University; Guangzhou China
| | - Zhi-Gang Liu
- Ear-Nose-Throat (ENT) Institute and Research Center of Allergy & Immunology; Shenzhen University School of Medicine; Shenzhen China
| | - Chang-Qing Zhao
- Department of Otolaryngology; Head & Neck Surgery, the Second Hospital, Shanxi Medical University; Taiyuan China
| | - Ping-Chang Yang
- Ear-Nose-Throat (ENT) Institute and Research Center of Allergy & Immunology; Shenzhen University School of Medicine; Shenzhen China
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Li MG, Liu XY, Liu ZQ, Hong JY, Liu JQ, Zhou CJ, Hu TY, Xiao XJ, Ran PX, Zheng PY, Liu ZG, Yang PC. Bcl2L12 Contributes to Th2-Biased Inflammation in the Intestinal Mucosa by Regulating CD4+ T Cell Activities. THE JOURNAL OF IMMUNOLOGY 2018; 201:725-733. [DOI: 10.4049/jimmunol.1800139] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 05/09/2018] [Indexed: 12/19/2022]
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Hauff P, Gottwald U, Ocker M. Early to Phase II drugs currently under investigation for the treatment of liver fibrosis. Expert Opin Investig Drugs 2014; 24:309-27. [PMID: 25547844 DOI: 10.1517/13543784.2015.997874] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Chronic liver diseases represent a high unmet medical need and are characterized by persistent inflammation, parenchymal damage and fibrotic remodeling, leading eventually to cirrhosis and hepatic failure. Besides the persisting high prevalence of chronic viral hepatitis B and C, the dramatic increase in nonalcoholic steatohepatitis is now considered to be a major pathophysiologic driver for fibrosis development and subsequently cirrhosis. Increasing evidence suggests that also liver cirrhosis can regress when treated adequately. AREAS COVERED Herein, the authors review the underlying pathophysiologic mechanisms leading to fibrotic remodeling in the liver. They also highlight the options for novel treatment strategies by using molecular targeted agents. EXPERT OPINION New in vitro and preclinical animal models, and the careful selection of patients with high disease dynamics for clinical studies, provide a sound basis for the clinical development of antifibrotic agents in humans. Surrogate parameters of liver function, inflammation, tissue remodeling and damage, as well as noninvasive imaging techniques, can be applied in clinical trials to provide fast readouts and novel and reliable endpoints for trial design, and provide an attractive regulatory environment for this emerging disease area.
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