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Temel EN, Akcam FZ, Caner V, Bagcı G, Tepebası MY. Relationship between IL-17, TNF-α, IL-10, IFN-γ, and IL-18 polymorphisms with the outcome of hepatitis B virus infection in the Turkish population. REVISTA DA ASSOCIACAO MEDICA BRASILEIRA (1992) 2023; 69:e20230355. [PMID: 37585994 PMCID: PMC10427177 DOI: 10.1590/1806-9282.20230355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 05/07/2023] [Indexed: 08/18/2023]
Abstract
OBJECTIVE Hepatitis B virus is a global threat that can lead to liver cirrhosis and hepatocellular carcinoma. For the treatment of chronic hepatitis B virus, polymorphisms might be an option for gene treatments. This study aimed to investigate the effects of IL-17, TNF-α, IL-10, IFN-γ, and IL-18 gene polymorphisms on hepatitis B virus infection in the Turkish population. METHODS The genotypes and allele distribution of 75 patients exposed to hepatitis B virus and 50 healthy control individuals were analyzed. The real-time polymerase chain reaction method was used for identification. RESULTS A correlation was observed between susceptibility to hepatitis B virus infection and IL-17 Exon 3/3'UTR (rs1974226) C, IL-17 Exon 3 (rs763780) A, IL-18 (-607) (rs1946518) A alleles, and IL-17 Exon 3 (rs763780) AA genotype (p=0.006, p=0.009, p=0.025, and p=0.008, respectively). Furthermore, IL-18 (-137) (rs187238) TT genotype and TNF-α-308 (rs1800629) G and A alleles, were associated with protection against hepatitis B virus infection (p=0.0351 and p=0.032, respectively). CONCLUSION This study demonstrated that TNF-α (-308), IL-17 (Exon 3/3' UTR), IL-17 (Exon 3), and IL-18 (-607) polymorphisms are associated with hepatitis B virus infection. Therefore, these may serve as potential therapeutic targets for chronic viral hepatitis in the Turkish population.
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Affiliation(s)
- Esra Nurlu Temel
- Suleyman Demirel University, School of Medicine, Department of Infectious Diseases – Isparta, Turkey
| | - Fusun Zeynep Akcam
- Suleyman Demirel University, School of Medicine, Department of Infectious Diseases – Isparta, Turkey
| | - Vildan Caner
- Pamukkale University, School of Medicine, Department of Medical Genetics – Denizli, Turkey
| | - Gülseren Bagcı
- Pamukkale University, School of Medicine, Department of Medical Genetics – Denizli, Turkey
| | - Muhammet Yusuf Tepebası
- Suleyman Demirel University, School of Medicine, Department of Medical Genetics – Isparta, Turkey
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Ambagtsheer F, Columb S, AlBugami MM, Ivanovski N. Kidneys for Sale? A Commentary on Moeindarbari’s and Feizi’s Study on the Iranian Model. Transpl Int 2022; 35:10530. [PMID: 35812157 PMCID: PMC9266991 DOI: 10.3389/ti.2022.10530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/27/2022] [Indexed: 11/24/2022]
Affiliation(s)
- Frederike Ambagtsheer
- Department of Internal Medicine, Erasmus MC Transplant Institute, University Medical Center Rotterdam, Rotterdam, Netherlands
- *Correspondence: Frederike Ambagtsheer,
| | - Sean Columb
- School of Law and Social Justice, The Liverpool Law School, University of Liverpool, Liverpool, United Kingdom
| | - Meteb M. AlBugami
- Multi-Organ Transplantation Center, King Fahad Specialist Hospital-Dammam, Dammam, Saudi Arabia
| | - Ninoslav Ivanovski
- Clinical Hospital Zan Mitrev, University “Sts Cyril and Methodius”, Skopje, North Macedonia
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Ashouri S, Khor SS, Hitomi Y, Sawai H, Nishida N, Sugiyama M, Kawai Y, Posuwan N, Tangkijvanich P, Komolmit P, Tsuiji M, Shotelersuk V, Poovorawan Y, Mizokami M, Tokunaga K. Genome-Wide Association Study for Chronic Hepatitis B Infection in the Thai Population. Front Genet 2022; 13:887121. [PMID: 35769989 PMCID: PMC9234442 DOI: 10.3389/fgene.2022.887121] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/16/2022] [Indexed: 11/19/2022] Open
Abstract
To identify novel host genetic variants that predispose to hepatitis B virus (HBV) persistence, we performed the first genome-wide association study in the Thai population involving 318 cases of chronic hepatitis B and 309 healthy controls after quality control measures. We detected the genome-wide significant association of the HLA class II region (HLA-DPA1/DPB1, rs7770370, p-value = 7.71 × 10−10, OR = 0.49) with HBV chronicity. Subsequent HLA allele imputation revealed HLA-DPA1*01:03 (Pc = 1.21 × 10−6, OR = 0.53), HLA-DPB1*02:01 (Pc = 2.17 × 10−3, OR = 0.50), and HLA-DQB1*06:09 (Pc = 2.17 × 10−2, OR = 0.07) as protective alleles, and HLA-DPA1*02:02 (Pc = 6.32 × 10−5, OR = 1.63), HLA-DPB1*05:01 (Pc = 1.13 × 10−4, OR = 1.72), HLA-DPB1*13:01 (Pc = 4.68 × 10−2, OR = 1.60), and HLA-DQB1*03:03 (Pc = 1.11 × 10−3, OR = 1.84) as risk alleles for HBV persistence. We also detected suggestive associations in the PLSCR1 (rs35766154), PDLIM5 (rs62321986), SGPL1 (rs144998273), and MGST1 (rs1828682) loci. Among single-nucleotide polymorphisms in the PLSCR1 locus, rs1061307 was identified as the primary functional variant by in silico/in vitro functional analysis. In addition to replicating the association of the HLA class II region, we detected novel candidate loci that provide new insights into the pathophysiology of chronic hepatitis B.
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Affiliation(s)
- Saeideh Ashouri
- Genome Medical Science Project, National Center for Global Health and Medicine, Toyama, Tokyo,Japan
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- *Correspondence: Saeideh Ashouri, ; Katsushi Tokunaga,
| | - Seik-Soon Khor
- Genome Medical Science Project, National Center for Global Health and Medicine, Toyama, Tokyo,Japan
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuki Hitomi
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo, Japan
| | - Hiromi Sawai
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Nao Nishida
- Genome Medical Science Project, National Center for Global Health and Medicine, Ichikawa, Chiba, Japan
| | - Masaya Sugiyama
- Genome Medical Science Project, National Center for Global Health and Medicine, Ichikawa, Chiba, Japan
| | - Yosuke Kawai
- Genome Medical Science Project, National Center for Global Health and Medicine, Toyama, Tokyo,Japan
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Nawarat Posuwan
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Campus, Pathum Thani, Thailand
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Pisit Tangkijvanich
- Center of Excellence in Hepatitis and Liver Cancer, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Piyawat Komolmit
- Center of Excellence in Liver Diseases, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
- Liver Fibrosis and Cirrhosis Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Makoto Tsuiji
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo, Japan
| | - Vorasuk Shotelersuk
- Department of Pediatrics, Center of Excellence for Medical Genomics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Masashi Mizokami
- Genome Medical Science Project, National Center for Global Health and Medicine, Ichikawa, Chiba, Japan
| | - Katsushi Tokunaga
- Genome Medical Science Project, National Center for Global Health and Medicine, Toyama, Tokyo,Japan
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- *Correspondence: Saeideh Ashouri, ; Katsushi Tokunaga,
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Ali T, Saxena R, Rani I, Sharma R, More D, Ola R, Agarwal S, Chawla YK, Kaur J. Association of interleukin-18 genotypes (-607C > A) and (-137 G > C) with the hepatitis B virus disease progression to hepatocellular carcinoma. Mol Cell Biochem 2021; 476:3923-3933. [PMID: 34165682 DOI: 10.1007/s11010-021-04206-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/08/2021] [Indexed: 01/20/2023]
Abstract
Chronic infection with HBV has been reported to be associated with the development of HCC. The inflammation mounted by cytokine-mediated immune system plays an important role in the pathogenesis of HBV-associated HCC. IL-18 is a pro-inflammatory cytokine whose role in the development of HBV-associated chronic to malignant disease state has not been much studied. The present study was conceived to determine the role of genetic polymorphisms in IL-18, serum levels of IL-18, and expression level of its signal transducers in the HBV disease progression. A total of 403 subjects were enrolled for this study including 102 healthy subjects and 301 patients with HBV infection in different diseased categories. Polymorphism was determined using PCR-RFLP. Genotypic distributions between the groups were compared using odd's ratio and 95% CI were calculated to express the relative risk. Circulating IL-18 levels were determined by ELISA. Expression levels of pSTAT-1 and pNFƙB was determined by western blotting. In case of IL-18(- 607C > A), the heterozygous genotype (CA) was found to be a protective factor while in case of IL-18(- 137G > C) the heterozygous genotype (GC) acted as a risk factor for disease progression from HBV to HCC. Moreover, serum IL-18 levels were significantly increased during HBV disease progression to HCC as compared to controls. Also the levels of activated signal transducers (pSTAT-1 and pNF-κB) of IL-18 in stimulated PBMCs were significantly increased during HBV to HCC disease progression. These findings suggest that IL-18 has the potential to act as a biomarker of HBV-related disease progression to HCC.
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Affiliation(s)
- Taqveema Ali
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Roli Saxena
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Isha Rani
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Renuka Sharma
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Deepti More
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Rajendra Ola
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Stuti Agarwal
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Yogesh Kumar Chawla
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Jyotdeep Kaur
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India.
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Ben Selma W, Alibi S, Smach MA, Saad A, Boukadida J. IL-18 variant increases risk of enhanced HBV DNA replication in chronic hepatitis. Immunol Lett 2020; 228:70-75. [DOI: 10.1016/j.imlet.2020.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/24/2020] [Accepted: 10/01/2020] [Indexed: 12/13/2022]
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Sato PK, Busser FD, Carvalho FMDC, Gomes Dos Santos A, Sadahiro A, Diogo CL, Kono ASG, Moretti ML, Luiz ODC, Shikanai-Yasuda MA. Polymorphism in the Promoter Region of the IL18 Gene and the Association With Severity on Paracoccidioidomycosis. Front Immunol 2020; 11:542210. [PMID: 33117339 PMCID: PMC7559583 DOI: 10.3389/fimmu.2020.542210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 08/21/2020] [Indexed: 01/06/2023] Open
Abstract
Paracoccidioidomycosis (PCM) is an important endemic, systemic disease in Latin America caused by Paracoccidioides spp. This mycosis has been associated with high morbidity and sequels, and its clinical manifestations depend on the virulence of the infecting strain, the degree and type of immune response, infected tissues, and intrinsic characteristics of the host. The T helper(Th)1 and Th17/Th22 cells are related to resistance and control of infection, and a Th2/Th9 response is associated with disease susceptibility. In this study, we focused on interleukin(IL)-12p35 (IL12A), IL-18 (IL18), and IFN-γ receptor 1 (IFNGR1) genetic polymorphisms because their respective roles have been described in human PCM. Real-time PCR was employed to analyze IL12A-504 G/T (rs2243115), IL18-607 C/A (rs1946518), and IFNGR1-611 A/G (rs1327474) single nucleotide polymorphisms (SNP). One hundred forty-nine patients with the acute form (AF), multifocal chronic (MC), or unifocal chronic (UC) forms of PCM and 110 non-PCM individuals as a control group were included. In the unconditional logistic regression analysis adjusted by ethnicity and sex, we observed a high risk of the IL18-607 A-allele for both AF [p = 0.015; OR = 3.10 (95% CI: 1.24–7.77)] and MC groups [p = 0.023; OR = 2.61 (95% CI: 1.14–5.96)] when compared with UC. The IL18-607 A-allele associated risk for the AF and MC groups as well as the protective role of the C-allele in UC are possibly linked to higher levels of IL-18 at different periods of the course of the disease. Therefore, a novel role of IL18-607 C/A SNP is shown in the present study, highlighting its importance in the outcome of PCM.
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Affiliation(s)
- Paula Keiko Sato
- Laboratory of Medical Investigation in Immunology (LIM48), Faculdade de Medicina, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil.,Institute of Tropical Medicine, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil
| | - Felipe Delatorre Busser
- Laboratory of Medical Investigation in Immunology (LIM48), Faculdade de Medicina, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil.,Institute of Tropical Medicine, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil
| | - Flávia Mendes da Cunha Carvalho
- Laboratory of Medical Investigation in Immunology (LIM48), Faculdade de Medicina, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil.,Department of Infectious and Parasitic Diseases, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil
| | - Alexandra Gomes Dos Santos
- Laboratory of Medical Investigation in Immunology (LIM48), Faculdade de Medicina, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil.,Department of Infectious and Parasitic Diseases, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil
| | - Aya Sadahiro
- Department of Parasitology, Instituto de Ciências Biológicas, Federal University of Amazonas, Manaus, Brazil
| | - Constancia Lima Diogo
- Laboratory of Medical Investigation in Immunology (LIM48), Faculdade de Medicina, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil.,Institute of Tropical Medicine, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil
| | | | - Maria Luiza Moretti
- Faculdade de Ciências Médicas, Hospital das Clínicas, State University of Campinas, Campinas, Brazil
| | - Olinda do Carmo Luiz
- Department of Preventive Medicine, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil
| | - Maria Aparecida Shikanai-Yasuda
- Laboratory of Medical Investigation in Immunology (LIM48), Faculdade de Medicina, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil.,Institute of Tropical Medicine, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil.,Department of Infectious and Parasitic Diseases, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil
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7
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Amirpour-Rostami S, Kazemi Arababadi M. IL-18 and IL-1β Gene Polymorphisms: The Plausible Risk Factors for Chronic Hepatitis B. Viral Immunol 2019; 32:208-213. [PMID: 31084469 DOI: 10.1089/vim.2018.0155] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Chronic inflammation is the main risk factor for induction of liver cirrhosis and also hepatocellular carcinoma in chronic hepatitis B (CHB) patients. Although our knowledge is growing regarding molecular mechanisms of immune responses against viruses, the main mechanisms that lead to the progression of chronic inflammation and then CHB are yet to be clarified. IL-18 and IL-1β are the members of the IL-1 family and produced in the cytoplasm of a wide range of immune and nonimmune cells and activated by inflammasome pathways. The cytokines play key roles in the pathologies of CHB. IL-18 and IL-1β productions are altered in CHB patients. It has been hypothesized that the polymorphisms within IL-18 and IL-1β genes may be the main reasons for the induction of chronic inflammation in CHB patients. This review article discusses the related investigations regarding the main correlation between the polymorphisms within IL-18 and IL-1β genes and CHB pathogenesis.
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Affiliation(s)
- Sahar Amirpour-Rostami
- 1 Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Kazemi Arababadi
- 2 Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.,3 Department of Laboratory Sciences, Faculty of Paramedicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
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Javan B, Kalani MR, Shahbazi M. Interleukin-1 gene cluster Haplotype analysis in the chronic outcome prediction of the Hepatitis B virus infection. J Med Virol 2017; 90:510-517. [PMID: 29023858 DOI: 10.1002/jmv.24972] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 10/08/2017] [Indexed: 12/23/2022]
Abstract
Hepatitis B virus (HBV) infection is well known as an important cause of the chronic liver disease. The screening of the genotype of certain cytokines might be helpful to predict the clinical outcome of an HBV infection. The present study investigates the relationship between the polymorphism and haplotypes of the Interleukin-1 (IL-1) gene family, including IL-1-alpha (IL-1A), IL-1-beta (IL-1B,) and IL-1 receptor antagonist (IL-1RN), with chronic HBV infection. A total of 297 chronic HBV and 333 matched on sex and age control individuals were genotyped using the standard sequence-specific-polymerase chain reaction primer (SSP-PCR) method. Four different haplotype analysis software packages were applied for data interpretation. The results showed excess genotype A1/A1 and A2/A2 at IL-1RN (40.2%, 39.9%), C/T at IL-1A-889 (55.6%), and C/C at IL-1B-511 (41.1%) in controls while A1/A1 at IL-1RN (59.3%), T/T at IL-1B-31 (46.5%), C/T at IL-1B + 3953 (65%), in chronic HBV infection cases. A total of 148 haplotypes were observed overall (96 in the case group and 89 in the control group). The haplotype combination of genotype A1/A1 at IL1-RN along with a C/T for all three IL-1B polymorphic positions and either C/T or T/T at the IL-1A-899 position may increase the probability of the chronic outcome for the HBV infection.
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Affiliation(s)
- Bita Javan
- Medical Cellular & Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mohamad R Kalani
- Medical Cellular & Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran.,University of Illinois at Urbana-Champaign, Molecular and Cell Biology, Urbana, Illinois
| | - Majid Shahbazi
- Medical Cellular & Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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Fatima SS, Jamil Z, Abidi SH, Nadeem D, Bashir Z, Ansari A. Interleukin-18 polymorphism as an inflammatory index in metabolic syndrome: A preliminary study. World J Diabetes 2017; 8:304-310. [PMID: 28694931 PMCID: PMC5483429 DOI: 10.4239/wjd.v8.i6.304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/03/2017] [Accepted: 04/24/2017] [Indexed: 02/05/2023] Open
Abstract
AIM To assess circulatory levels of interleukin-18 (IL-18) and determine whether the presence of IL-18 promoter polymorphism influences metabolic syndrome phenotypes.
METHODS This study recruited one hundred and eighty individuals divided into three groups with sixty subjects each as: Normal weight (18.0-22.9 kg/m2), overweight (23.0-25.9 kg/m2) and obese (> 26.0 kg/m2) according to South Asian criteria of BMI. Fasting blood glucose (FBG), Lipid profile, insulin, IL-18 and tumor necrosis factor (TNF)α were measured using ELISA kits, whereas low density lipoprotein (LDL)-cholesterol, insulin resistance (HOMA-IR) and insulin sensitivity (QUICKI) were calculated. The body fat percentage (BF) was measured through bioelectrical impedance analysis; waist and hip circumference were measured. Genotyping of IL-18 -607 C/A polymorphism was performed by using tetra-primer amplification refractory mutation system. Student t test, One-way analysis of variance, Hardy-Weinberg equilibrium, Pearson’s χ2 test and Pearson’s correlation were used, where a P value < 0.05 was considered significant.
RESULTS In an aged matched study, obese subjects showed higher levels of FBG, cholesterol, triglycerides and LDL levels as compared to normal weight (P < 0.001). Highest levels of IL-18 and TNF levels were also seen in obese subjects (IL-18: 58.87 ± 8.59 ng/L) (TNF: 4581.93 ± 2132.05 pg/mL). The percentage of IL-18 -607 A/A polymorphism was higher in overweight and obese subjects vs normal weight subjects (P < 0.001). Moreover, subjects with AA genotype had a higher BF, insulin resistance, TNFα and IL-18 levels when compared with subjects with AC (heterozygous) or CC (wild type) genotypes. However, we did not find any difference in the lipid profile between three subgroups.
CONCLUSION This preliminary data suggests that IL-18 polymorphism affects IL-18 levels that might cause low grade inflammation, further exacerbated by increased TNFα. All these increase the susceptibility to develop MetS. Further studies are required to validate our findings.
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Zhu SL, Zhao Y, Hu XY, Luo T, Chen ZS, Zhang Y, Yang SH, Zhou L, Li LQ. Genetic polymorphisms -137 (rs187238) and -607 (rs1946518) in the interleukin-18 promoter may not be associated with development of hepatocellular carcinoma. Sci Rep 2016; 6:39404. [PMID: 28000712 PMCID: PMC5175127 DOI: 10.1038/srep39404] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 11/23/2016] [Indexed: 12/22/2022] Open
Abstract
This study meta-analyzed the literature on possible association of polymorphisms -137 (rs187238) and -607 (rs1946518) in the interleukin-18 (IL-18) promoter with risk of hepatocellular carcinoma (HCC). The analysis included 8 case-control studies on the -137 polymorphism (1,318 cases, 2,254 controls) and 7 case-control studies on the -607 polymorphism (1,262 cases, 1,696 controls). None of the five genetic models suggested a significant association between the -137 polymorphism and HCC risk: allelic model, OR 0.99, 95% CI 0.74-1.34, P = 0.97; recessive model, OR 0.98, 95% CI 0.65-1.46, P = 0.91; dominant model, OR 1.35, 95% CI 0.73-2.52, P = 0.34; homozygous model, OR 0.99, 95% CI 0.65-1.49, P = 0.95; heterozygous model, OR 0.99, 95% CI 0.66-1.48, P = 0.94. Similar results were obtained in subgroup analyses of Asian patients, Chinese patients, or patients with hepatitis B virus (HBV)-related HCC. Similar results were also obtained for the -607 polymorphism across the entire study population as well as in the three subgroups. The available evidence suggests no significant association of the -137 or -607 polymorphisms with risk of HCC in general or specifically of HBV-related HCC. These conclusions should be verified in large, well-designed studies.
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Affiliation(s)
- Shao-Liang Zhu
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Yun Zhao
- Department of Chemotherapy, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Xue-Ying Hu
- Department of Radiology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Tao Luo
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Zu-Shun Chen
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Yu Zhang
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Shui-Hua Yang
- Department of Ultrasound, Maternal &Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
| | - Lu Zhou
- Department of Oncology, Nanning First People's Hospital, Nanning 530021, China
| | - Le-Qun Li
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
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Lu Y, Bao JG, Deng Y, Rong CZ, Liu YQ, Huang XL, Song LY, Li S, Qin X. Role of IL-18 Gene Promoter Polymorphisms, Serum IL-18 Levels, and Risk of Hepatitis B Virus-related Liver Disease in the Guangxi Zhuang Population: a Retrospective Case-Control Study. Asian Pac J Cancer Prev 2016; 16:6019-26. [PMID: 26320490 DOI: 10.7314/apjcp.2015.16.14.6019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of this study was to assess the relationship between IL-18 gene polymorphisms and HBV-related diseases and whether these polymorphisms influence its expression in the Guangxi Zhuang population. MATERIALS AND METHODS We enrolled 129 chronic HBV infected (CHB) patients, 86 HBV-related liver cirrhosis (LC) patients and 160 healthy controls in our study. Polymerase chain reaction-restriction fragment length polymorphism methods were used to detect IL-18 gene -607C/A, -137G/C polymorphisms, and an ELISA kit was employed to determine serum IL-18 levels. RESULTS No correlation was found between the -607C/A polymorphism and risk of HBV-related disease. For the -137G/C polymorphism, the GC genotype and C allele were associated with a significantly lower risk of CHB (95%CI: 0.32-0.95, p=0.034 and 95%CI: 0.35-0.91, p=0.018) and HBV-related LC (95%CI: 0.24-0.89, p=0.022 and 95%CI: 0.28-0.90, p=0.021). A similar decreased risk was also found with the A-607C-137 haplotype. With respect to IL-18 expression, it was significantly lower in both patient groups, but no association was noted between the two polymorphisms in the IL-18 gene and its expression. CONCLUSIONS Our study indicated that the -137C allele in the IL-18 gene may be a protective factor for HBV-related disease, and serum IL-18 level may be inversely associated with CHB and HBV-related LC.
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Affiliation(s)
- Yu Lu
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China E-mail : ;
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Zhou C, Ouyang N, Li QH, Luo SX, He Q, Lei H, Liu Q. The -137G/C single nucleotide polymorphism in IL-18 gene promoter contributes to tuberculosis susceptibility in Chinese Han population. INFECTION GENETICS AND EVOLUTION 2015; 36:376-380. [PMID: 26474654 DOI: 10.1016/j.meegid.2015.10.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 10/04/2015] [Accepted: 10/12/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND Interleukin (IL) -18 is crucial to host defense against mycobacterial infections. Recent studies have indicated IL-18 gene polymorphisms are associated with susceptibility to several clinical diseases. OBJECTIVE The aim of this study is to investigate the association of IL-18 (-137G/C and -607C/A) gene promoter single nucleotide polymorphisms (SNPs) with susceptibility to tuberculosis (TB), and the effects of those SNPs to its protein producing capacity in Chinese Han population. METHODS 407 TB patients (including 113 children and 294 adults) and 469 healthy volunteers (including 167 children and 302 adults) from Chinese Han population were enrolled. The IL-18 gene promoter polymorphisms at positions of -137 and -607 were determined by sequence specific primer-polymerase chain reaction (SSP-PCR). The IL-18 levels in the supernatants of PBMCs from 46 healthy volunteers were measured by ELISA. RESULTS The gene distribution of IL-18 -137G/C and -607C/A showed none difference between adult and pediatric population. The frequency of IL-18 -137GG genotype was significantly higher in total TB group than that in total healthy control group (79.1% V 69.3%, P<0.01), while the frequencies of GC genotype and C allele were conversely lower (19.2% V 27.9%, P<0.01; 11.3% V 16.7%, P<0.01 respectively). The difference of the -137CC genotype distribution between patients and controls was not observed. At the -607C/A polymorphic site, patient and control groups had a very similar gene distribution. Isolated PBMCs with IL-18 -137GC/CC genotype were able to produce a higher level of IL-18 than those with IL-18 -137GG genotype, either spontaneously or in response to PMA plus calcimycin A23187. CONCLUSION IL-18 -137G/C polymorphism contributed to TB susceptibility in Chinese Han population. Allele G might be a predisposing gene of TB, while allele C probably plays a role in preventing mycobacterium tuberculosis infection by promoting more vigorous protein expression.
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Affiliation(s)
- Chao Zhou
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.
| | - Nan Ouyang
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.
| | - Qing Hui Li
- Department of Cardiology, The People's Hospital of Ningxia, Ningxia, PR China.
| | - Su Xin Luo
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.
| | - Quan He
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.
| | - Han Lei
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.
| | - Qing Liu
- Centre for Clinical Research, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.
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Ferreira SDC, Chachá SGF, Souza FF, Teixeira AC, Santana RDC, Deghaide NHS, Rodrigues S, Marano LA, Mendes-Junior CT, Zucoloto S, Donadi EA, Martinelli ADLC. IL-18, TNF, and IFN-γ alleles and genotypes are associated with susceptibility to chronic hepatitis B infection and severity of liver injury. J Med Virol 2015; 87:1689-96. [PMID: 25952099 DOI: 10.1002/jmv.24225] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2015] [Indexed: 12/31/2022]
Abstract
This study evaluated the association of polymorphisms in the IL-18 (-607C/A and -137C/G), IFNγ (+874 A/T), and TNF (-238 A/G and -308 A/G) genes with susceptibility to HBV infection and severity of liver injury. A total of 259 chronic HBV-infected patients followed at the University Hospital, Faculty of Medicine of Ribeirão Preto, São Paulo, Brazil, and 202 healthy individuals were studied. Four Single Nucleotide Polymorphisms (SNPs) were amplified by Polymerase Chain Reaction (PCR). Liver biopsy was performed in 212 HBV-infected patients and classified according to severity of liver fibrosis (scores 0-4) and necroinflammatory activity (HAI scores 0-18). TNF-308*A allele (P < 0.001; OR = 2.16) and TNF -308 AA genotype (P = 0.026; OR = 5.43) were associated with susceptibility to HBV infection. An association was found between severe liver fibrosis when compared to mild fibrosis and the following polymorphisms: Alleles IL-18 -137*G (P = 0.004; OR = 3.45), TNF -308*A (P < 0.001; OR = 3.39), and IFNγ +874*T (P = 0.029; OR = 1.85) and IL-18 -137 GG genotype (P = 0.009; OR = 3.70). No significant association was found between IL-18 (-607 A/C) polymorphism and severity of liver fibrosis. Alleles IL-18 -137*G (P = 0.028; OR = 2.64) and TNF-308*A (P = 0.002; OR = 3.06) and IL-18 -137 GG genotype (P = 0.011; OR = 4.20) were associated with severe necroinflammatory activity (HAI>12) when compared to mild necroinflammatory activity (HAI 1-8). The results suggest that IL-18 -137C/G, TNF-308 G/A and IFNγ +874 A/T SNPs were associated to more severe liver injury in chronic HBV infection. TNF -308*A allele and TNF -308 AA genotype could play a role in the susceptibility to HBV infection.
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Affiliation(s)
- Sandro da Costa Ferreira
- Gastroenterology Division, Department of Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Silvana Gama Florêncio Chachá
- Gastroenterology Division, Department of Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Department of Medicine, Federal University of São Carlos (UFSCAR), Ribeirão Preto, São Paulo, Brazil
| | - Fernanda Fernandes Souza
- Gastroenterology Division, Department of Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Andreza Corrêa Teixeira
- Gastroenterology Division, Department of Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Rodrigo de Carvalho Santana
- Infectious Diseases Division, Department of Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Neifi Hassan Saloun Deghaide
- Clinical Immunology Division, Department of Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Sandra Rodrigues
- Gastroenterology Division, Department of Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Leonardo Arduíno Marano
- Genetics Department, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Celso Teixeira Mendes-Junior
- Departamento de Química - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP - USP), Ribeirão Preto, São Paulo, Brazil
| | - Sérgio Zucoloto
- Pathology Department, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Eduardo Antônio Donadi
- Clinical Immunology Division, Department of Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Ana de Lourdes Candolo Martinelli
- Gastroenterology Division, Department of Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
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Mandour M, Nemr N, Kishk R, Ahmed E. Impact of the IL-18 gene polymorphism in response to antiviral therapy in chronic HCV genotype 4 patients. Rev Soc Bras Med Trop 2014; 47:137-42. [PMID: 24861285 DOI: 10.1590/0037-8682-0024-2014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 04/11/2014] [Indexed: 05/28/2023] Open
Abstract
INTRODUCTION Interleukin (IL)-18 is a well-known major proinflammatory cytokine with broad biological effects. The major immunomodulatory functions of IL-18 include enhancing T cell and natural killer cell cytotoxicity. Serum levels of this cytokine were shown to increase in chronic hepatitis C patients compared to non-infected healthy people. An association between IL-18 gene promoter polymorphisms and pegylated interferon (PEG-IFN) and ribavirin treatment outcomes has been reported for individuals with chronic hepatitis C virus genotype 1 (HCV-1). In this study, HCV genotype 4 (HCV-4) patients were assessed for IL-18 gene polymorphisms and treatment outcomes or severity of liver disease because data concerning the impact of IL-18 gene polymorphisms on patients with HCV-4 infections are limited. METHODS This study included 123 chronic HCV-4 Egyptian patients and 123 apparently healthy volunteer blood donors who served as a control group. HCV genotyping was performed using the line probe assay. IL-18 genotyping was performed using the TaqMan Real-Time PCR method in all 246 patient and control samples. RESULTS In our study, all patients had HCV-4. IL-18 gene single nucleotide polymorphism (SNP) (-607C/A) genotype distributions and allele frequencies did not differ between HCV patients and normal healthy subjects or between patient groups when compared according to the therapeutic response. Moreover, the presence of an IL-18 SNP was not associated with histological disease severity. We conclude that the presence of the IL-18 SNP rs1946518 does not affect the outcome of chronic HCV-4 treatment in Egyptian patients. CONCLUSIONS The IL-18 SNP rs1946518 does not affect response to treatment in chronic HCV-4 patients.
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Affiliation(s)
- Mohamed Mandour
- Department of Clinical Pathology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Nader Nemr
- Department of Endemic and Infectious Diseases, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Rania Kishk
- Department of Microbiology and Immunology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Eman Ahmed
- Department of Clinical Pharmacology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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15
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do Nascimento WGA, Cilião DA, Genre J, Gondim DD, Alves RG, Hassan ND, Lima FP, Pereira MG, Donadi EA, de Oliveira Crispim JC. Genetic polymorphisms of Interleukin-18 are not associated with allograft function in kidney transplant recipients. Genet Mol Biol 2014; 37:343-9. [PMID: 25071398 PMCID: PMC4094619 DOI: 10.1590/s1415-47572014005000005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 02/25/2014] [Indexed: 11/21/2022] Open
Abstract
Interleukin 18 (IL-18) is a proinflammatory cytokine that plays a role in host defense by upregulating both innate and acquired immune responses. Analysis of IL18 polymorphisms may be clinically important since their roles have been recognized in a variety of inflammatory and autoimmune disorders. However, the role of this cytokine polymorphisms in kidney transplant still remains unclear. In this study, we evaluated the associations between IL18 polymorphisms and graft function assessed by creatinine clearance in kidney transplant recipients. A total of 82 kidney transplant recipients and 183 healthy controls were enrolled, and frequencies of alleles, genotypes and haplotypes for IL18 polymorphisms were determined and compared with creatinine clearance. The -607C/A (rs1946518) and -137C/G (rs187238) variant alleles in the IL18 gene were determined by polymerase chain reaction. In our study, no significant association was found between the IL18 variants and creatinine clearance (p > 0.05). Nonetheless, polymorphism analysis revealed an increase in the frequency of the IL18 major haplotype -607C/-137G in kidney transplant patients (odds ratio 2.57, 95% confidence interval 1.45–4.55, p = 0.0014). Finally, we found that IL18 polymorphisms did not influence the renal function and that IL18 haplotype -607C/-137G seems to be associated with kidney transplant recipients.
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Affiliation(s)
| | - Daiani Alves Cilião
- Departamento de Medicina Clínica , Faculdade de Medicina de Ribeirão Preto , Universidade de São Paulo , Ribeirão Preto, SP , Brazil
| | - Julieta Genre
- Programa de Pós-Graduação em Ciências Farmacêuticas , Universidade Federal do Rio Grande do Norte , Natal, RN , Brazil
| | - Dikson Dibe Gondim
- Departamento de Análises Clínicas e Toxicológicas , Universidade Federal do Rio Grande do Norte , Natal, RN , Brazil
| | | | - Neife Deghaide Hassan
- Departamento de Medicina Clínica , Faculdade de Medicina de Ribeirão Preto , Universidade de São Paulo , Ribeirão Preto, SP , Brazil
| | | | - Maurício Galvão Pereira
- Departamento de Medicina Integrativa , Universidade Federal do Rio Grande do Norte , Natal, RN , Brazil
| | - Eduardo Antônio Donadi
- Departamento de Medicina Clínica , Faculdade de Medicina de Ribeirão Preto , Universidade de São Paulo , Ribeirão Preto, SP , Brazil
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Motavaf M, Safari S, Alavian SM. Interleukin 18 gene promoter polymorphisms and susceptibility to chronic hepatitis B infection: a review study. HEPATITIS MONTHLY 2014; 14:e19879. [PMID: 25031585 PMCID: PMC4080096 DOI: 10.5812/hepatmon.19879] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 05/01/2014] [Indexed: 12/11/2022]
Abstract
CONTEXT The variation in clinical outcome of hepatitis B virus (HBV) infection is determined by virological, immunological and host genetic factors. Genes encoding cytokines are one of the candidates among host genetic factors. Polymorphisms in gene promoter can lead to different levels of cytokine expression and unique immune response. Being involved in the inflammatory cytokine network, interleukin-18 (IL-18) plays an important role in pathogenesis of HBV infection. The aim of this review is considering available literature on the association between IL-18 gene promoter single nucleotide polymorphisms (-137 C/G and -607 A/C) and susceptibility to chronic HBV infection. EVIDENCE ACQUISITION Published literature from PubMed, EMBASE, and other databases were retrieved. All studies investigating the association of IL-18 gene promoter SNPs, -137 C/G and -607 A/C, with susceptibility to chronic HBV infection were included. RESULTS Findings showed that the genotype -607A/A is associated with the susceptibility to chronic hepatitis B. Furthermore, allele C at position -137 is suggested to play a protective role against development of chronic HBV infection. CONCLUSIONS Host genetic factors play an important role in determining the outcome of HBV infection. It is suggested that IL-18 genotype -607 A/A is associated with susceptibility to chronic hepatitis B. Furthermore, the carriage of allele C at position -137 may play a protective role in the development of chronic HBV infection.
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Affiliation(s)
- Mahsa Motavaf
- Department of Molecular Hepatology, Middle East Liver Disease Center (MELD), Tehran, IR Iran
| | - Saeid Safari
- Department of Molecular Hepatology, Middle East Liver Disease Center (MELD), Tehran, IR Iran
- Department of Anesthesiology and Pain Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Seyed Moayed Alavian
- Department of Molecular Hepatology, Middle East Liver Disease Center (MELD), Tehran, IR Iran
- Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
- Corresponding Author: Seyed Moayed Alavian, Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, IR Iran. Tel: +98-2188945186, Fax: +98-2188945188, E-mail:
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17
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Xia P, Zhou M, Dong DS, Xing YN, Bai Y. Association of polymorphisms in interleukin-18 and interleukin-28B genes with outcomes of hepatitis B virus infections: a meta-analysis. Tumour Biol 2014; 35:1129-37. [PMID: 24026885 DOI: 10.1007/s13277-013-1151-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 08/26/2013] [Indexed: 01/03/2023] Open
Abstract
Several polymorphisms in the interleukin-18 (IL-18) and nterleukin-28B (IL-28B) genes have been reported to influence hepatitis B virus (HBV) infection. However, the published findings have been conflicting. We conducted meta-analyses of randomized, controlled trials to address the association of IL-18 or IL-28B polymorphisms and the outcomes of HBV infection. Weipu, Wanfang, CNKI, MEDLINE, PubMed, EMBASE, and Cochrane Library databases were employed to search for citations using the MeSH terms as "interleukin-18"/"interleukin-28B" AND "HBV" AND "gene" AND "polymorphism" without any restriction in language and publication year. Meta-analysis was conducted by RevMan 5.0 software. The results showed that the IL28B rs8099917 AA genotype (AA vs AC + CC: odds ratio (OR) = 0.63, 95 % confidence interval (CI) = 0.46-0.87) was associated with a decreased risk of hepatocellular carcinoma (HCC). Carriage of IL28B rs12979860 CC genotype was associated with an increased risk for developing liver cirrhosis among patients with HBV infection (CC vs CT + TT: OR = 1.39, 95 % CI = 1.04-1.85). Further well-designed large studies are warranted to confirm the mechanisms by which these are involved in these outcomes of HBV infection.
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Affiliation(s)
- Pu Xia
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, China Medical University, Shenyang, 110001, Liaoning, People's Republic of China,
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18
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Association of Interleukin 27 gene polymorphism and risk of Hepatitis B viral infection in Egyptian population. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2014. [DOI: 10.1016/j.ejmhg.2013.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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19
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Piskin IE, Karakas-Celik S, Calik M, Abuhandan M, Kolsal E, Genc GC, Iscan A. Association of Interleukin 18, Interleukin 2, and Tumor Necrosis Factor Polymorphisms with Subacute Sclerosing Panencephalitis. DNA Cell Biol 2013; 32:336-40. [DOI: 10.1089/dna.2013.1997] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Ibrahim Etem Piskin
- Department of Pediatrics, Bulent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Sevim Karakas-Celik
- Department of Genetics, Bulent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Mustafa Calik
- Department of Pediatric Neurology, Harran University School of Medicine, Sanlıurfa, Turkey
| | - Mahmut Abuhandan
- Department of Pediatrics, Harran University School of Medicine, Sanlıurfa, Turkey
| | - Ebru Kolsal
- Department of Pediatric Neurology, Bakirkoy Dr Mazhar Osman Psychiatric and Neurological Diseases Research and Education Hospital, Istanbul, Turkey
| | - Gunes Cakmak Genc
- Department of Genetics, Bulent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Akin Iscan
- Department of Pediatric Neurology, Faculty of Medicine, BezmialemVakif University, Istanbul, Turkey
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20
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Rocha-Júnior MC, Haddad R, Cilião Alves DC, de Deus Wagatsuma VM, Mendes-Junior CT, Deghaide NHS, Takayanagui OM, Covas DT, Donadi EA, Kashima S. Interleukin-18 and interferon-gamma polymorphisms are implicated on proviral load and susceptibility to human T-lymphotropic virus type 1 infection. ACTA ACUST UNITED AC 2012; 80:143-50. [PMID: 22587568 DOI: 10.1111/j.1399-0039.2012.01887.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Interleukin-18 (IL-18) and interferon-gamma (IFN-γ) exert important functions in both innate and adaptive immune responses against intracellular pathogens and viruses. Previous studies suggested that host genetic factors, including cytokines gene polymorphisms, could be involved in the pathogenesis of human T-cell leukemia virus type 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Thus, we analyzed -137C/G and -607A/C of the IL-18 promoter and +874T/A of the IFN-γ in DNA samples from 98 HTLV-1-infected individuals exhibiting or not clinical symptoms and 150 healthy control individuals. The IL-18 promoter -607CC genotype was significantly lower in HTLV-1 asymptomatic carriers (HAC) and HTLV-1-infected individuals (HAC + HAM/TSP) than healthy control group. In contrast, the -607AC genotype was significantly higher in HAC and HTLV-1-infected individuals group compared to the healthy control group. The -137G/-607A IL-18 haplotype was higher in infected group than healthy control group, and the -137C/-607C IL-18 haplotype was increased in the healthy control group compared to the others. Finally, the IFN-γ polymorphism analysis showed that the HTLV-1-infected individuals with +874AT genotype presented higher proviral load than +874AA genotype. These data indicate that the IL-18-607AC genotype and -137G/-607A haplotype could be a risk factor for HTLV-1 infection, whereas the protective effect could be conferred by -607CC genotype and -137C/-607C haplotype. Also, the IFN-γ could be implicated on the proviral load levels.
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Affiliation(s)
- M C Rocha-Júnior
- Hemocentro de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo CEP: 14051-140, Brazil
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21
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Chen CF, Gan YY. Hardy-Weinberg disequilibrium of the IL-18 C-607A SNP suggesting selective advantage of heterozygotes. Biochem Genet 2011; 50:63-72. [PMID: 21922295 DOI: 10.1007/s10528-011-9459-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2010] [Accepted: 05/25/2011] [Indexed: 11/26/2022]
Abstract
Interleukin-18 (IL-18) plays a key role in autoimmune, inflammatory, and infectious diseases. The IL-18 gene contains a C to A single nucleotide polymorphism (SNP) at position -607 (C-607A) within the promoter region, which was found to affect the promoter activity and subsequently the protein level of IL-18. We investigated this SNP in a group of healthy Singaporeans and found that CA was the most common genotype and the C allele was more prevalent than the A allele, which was not always the case in other ethnic groups. In addition, Singaporean Chinese were significantly different from Singaporean Indians in both allelic and genotypic distributions. Furthermore, significant deviations from Hardy-Weinberg equilibrium of this SNP were found in all three ethnic groups studied (Chinese, Indians, and Malays) and also in other published literature, suggesting that heterozygotes of this IL-18 C-607A SNP may have certain selective advantages.
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Affiliation(s)
- Chuan Fei Chen
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore, 637616, Singapore
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22
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Warner BG, Tsai P, Rodrigo AG, ‘Ofanoa M, Gane EJ, Munn SR, Abbott WGH. Evidence for reduced selection pressure on the hepatitis B virus core gene in hepatitis B e antigen-negative chronic hepatitis B. J Gen Virol 2011; 92:1800-1808. [DOI: 10.1099/vir.0.030478-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The mechanisms underlying the high levels of hepatitis B virus (HBV) replication that cause hepatitis B e antigen (HBeAg)-negative chronic hepatitis B (e−CHB) are unknown. Impaired anti-HBV immunity, which may be measurable as a relaxation of selection pressure on the virus, is possible. A group of Tongans (n = 345) with a chronic HBV infection, including seven with e−CHB, were genotyped at HLA class I. The repertoire of HBV core-gene codons under positive selection pressure was defined by phylogenetic analysis (by using the paml program) of 708 cloned sequences extracted from the 67 of these 345 subjects with the same repertoire of HLA class I alleles as the seven e−CHB individuals and matched controls (see below). The frequency of non-synonymous mutations at these codons was measured in longitudinal data from 15 subjects. Finally, the number of non-synonymous mutations at these codons was compared in seven groups comprised of one subject with e−CHB and 1–3 HLA class I-matched controls with an inactive, HBeAg-negative chronic HBV infection (e−InD). Nineteen codons in the core gene were under positive selection pressure. There was a high frequency of new non-synonymous mutations at these codons (P<0.0001) in longitudinal data. The mean number of these 19 codons with non-synonymous mutations was lower (P = 0.02) in HBV from subjects with e−CHB (4.4±0.5 codons per subject) versus those with e−InD (6.4±0.4 codons per subject). There is a subtle relaxation in selection pressure on the HBV core gene in e−CHB. This may be due to impaired antiviral immunity, and could contribute to the high levels of viral replication that cause liver inflammation in this disease.
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Affiliation(s)
- Brook G. Warner
- Bioinformatics Institute, University of Auckland, Private Bag 92-019, Auckland, New Zealand
| | - Peter Tsai
- Bioinformatics Institute, University of Auckland, Private Bag 92-019, Auckland, New Zealand
| | - Allen G. Rodrigo
- Biology Department, 3103 French Science Center, Duke University, 125 Science Drive, Durham, NC 27708, USA
- Bioinformatics Institute, University of Auckland, Private Bag 92-019, Auckland, New Zealand
| | - Malakai ‘Ofanoa
- The School of Population Health, University of Auckland, Private Bag 92-019, Auckland, New Zealand
| | - Edward J. Gane
- The New Zealand Liver Transplant Unit, Auckland City Hospital, Private Bag 92-024, Auckland, New Zealand
| | - Stephen R. Munn
- The New Zealand Liver Transplant Unit, Auckland City Hospital, Private Bag 92-024, Auckland, New Zealand
| | - William G. H. Abbott
- The New Zealand Liver Transplant Unit, Auckland City Hospital, Private Bag 92-024, Auckland, New Zealand
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23
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Huang Y, Xu M, Hong J, Gu W, Bi Y, Li X. -607 C/A polymorphism in the promoter of IL-18 gene is associated with 2 h post-loading plasma glucose level in Chinese. Endocrine 2010; 37:507-12. [PMID: 20960175 DOI: 10.1007/s12020-010-9338-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2010] [Accepted: 03/29/2010] [Indexed: 12/12/2022]
Abstract
The purpose of this study is to find out whether the -607 C/A polymorphism in IL-18 gene promoter will affect serum IL-18 concentrations and glucose metabolism in Chinese subjects. In 232 patients with impaired glucose regulation (IGR) or type 2 diabetes and 212 subjects of normal glucose regulation (NGR), -607 C/A polymorphism was analyzed by polymerase chain reaction with sequence specific primers. Serum IL-18 concentrations were determined by ELISA in 200 subjects. Compared with subjects with NGR, those with type 2 diabetes and IGR had significant higher IL-18 concentrations [114.4 (92.9-149.2) and 102.1 (67.5-138.2) vs. 77.3 (53.8-107.8) pg/ml, P = 0.0026 and P < 0.0001, respectively]. A significantly higher proportion of A/A genotype of -607 C/A polymorphism presented in patients with type 2 diabetes compared with subjects of NGR (23.8% vs. 10.9%, P = 0.005). Subjects with an A/A genotype also had higher 2 h post-loading plasma glucose (2 h-PPG) compared with C/A and C/C genotypes even after adjustments of age, sex and BMI [8.94 (7.55-12.3) vs. 7.80 (6.00-9.87) and 7.23 (5.66-8.99) mmol/l, P both < 0.05]. Multiple linear regression revealed that BMI (P < 0.0001) and 2 h-PPG (P = 0.019) were independently associated with IL-18 concentrations. In conclusion, subjects with IGR or type 2 diabetes had significantly higher concentrations of IL-18 than those with NGR. Genotype A/A of IL-18 gene promoter -607 C/A polymorphism was associated with higher prevalence of type 2 diabetes and 2 h post-loading plasma glucose level.
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Affiliation(s)
- Yun Huang
- Department of Endocrinology and Metabolism, Shanghai Institute of Endocrinology and Metabolism, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
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Chen S, Xu L, Tang J. Association of interleukin 18 gene polymorphism with susceptibility to the development of acute lung injury after cardiopulmonary bypass surgery. ACTA ACUST UNITED AC 2010; 76:245-9. [DOI: 10.1111/j.1399-0039.2010.01506.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Interleukin 18 promoter variants (-137G>C and -607C>A) in patients with chronic hepatitis C: association with treatment response. J Clin Immunol 2009; 29:620-8. [PMID: 19455410 DOI: 10.1007/s10875-009-9302-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2009] [Accepted: 04/28/2009] [Indexed: 12/23/2022]
Abstract
BACKGROUND Recently, two functional IL18 promoter variants, -607C>A (rs1946518) and -137G>C (rs187238), were associated with viral clearance in patients with hepatitis C. The present study focused on their relevance for treatment response. METHODS Seven hundred fifty-seven chronically infected European patients and 791 controls were enrolled in the study. IL18 genotyping was performed by allele-specific PCR. Liver histology was available in 67.9%. RESULTS Genotype and allele frequencies were equally distributed in patients and controls. No significant association with various disease characteristics was observed. However, when comparing patients with sustained virological response (SR) and non-SR, statistically significant associations were found for both variants (p = 0.0416 and p = 0.0274, respectively). In viral genotype 1, the -607A allele was positively associated with treatment response (p = 0.0190; OR 1.537; 95% CI, 1.072-2.205) and the -137G allele with a higher rate of nonresponse (p = 0.0302; OR 1.524; 95% CI, 1.040-2.233). CONCLUSIONS The association of IL18 variants with treatment response in genotype 1 hepatitis C patients implies a predictive and modifying role of these genetic variants.
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Migita K, Sawakami-Kobayashi K, Maeda Y, Nakao K, Kondoh S, Sugiura M, Kawasumi R, Segawa O, Tajima H, Machida M, Nakamura M, Yano K, Abiru S, Kawasaki E, Yatsuhashi H, Eguchi K, Ishibashi H. Interleukin-18 promoter polymorphisms and the disease progression of Hepatitis B virus-related liver disease. Transl Res 2009; 153:91-6. [PMID: 19138654 DOI: 10.1016/j.trsl.2008.11.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2008] [Revised: 11/14/2008] [Accepted: 11/17/2008] [Indexed: 02/06/2023]
Abstract
In this study, we aimed to explore whether interleukin-18 (IL-18) gene-promoter polymorphisms are associated with the outcome of hepatitis B virus (HBV) infection. In all, 204 chronically HBV-infected patients were recruited in this study. Of the 204 HBV-infected patients, 43 were considered to be inactive HBV carriers based on the sustained normalization of serum alanine aminotransferase (ALT) together with seropositivity for the antibody to hepatitis B e-antigen (anti-HBe). A total of 161 patients were found to have chronic progressive liver disease, which included cirrhosis. In these HBV-infected patients, the frequencies of AA genotype of IL-18 gene-promoter polymorphisms at position -607 and C allele at position -137 were significantly higher in inactive HBV carriers compared with those in patients with chronic progressive liver disease. These polymorphisms of the IL-18 promoter regions (-607 and -137) could be associated with different outcomes of HBV infection.
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Affiliation(s)
- Kiyoshi Migita
- Clinical Research Center, NHO Nagasaki Medical Center, Kubara 2-1001-1, Omura 856-8652, Japan.
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Sharma A, Chakraborti A, Das A, Dhiman RK, Chawla Y. Elevation of interleukin-18 in chronic hepatitis C: implications for hepatitis C virus pathogenesis. Immunology 2008; 128:e514-22. [PMID: 19740312 DOI: 10.1111/j.1365-2567.2008.03021.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The outcome of hepatitis C virus (HCV) infection is determined by the interplay between the virus and the host immune response. Interleukin (IL)-18, an interferon-gamma-inducing factor, plays a critical role in the T helper type 1 (Th1) response required for host defence against viruses, and antibodies to IL-18 have been found to prevent liver damage in a murine model. The present study was conducted to investigate the possible role of IL-18 in the pathogenesis and persistence of HCV. IL-18 levels were measured in sera of 50 patients at various stages of HCV infection (resolved, chronic and cirrhosis) and compared with those of normal controls. IL-18 gene expression was studied in peripheral blood mononuclear cells (PBMC) from each group, and in liver biopsy tissue from patients with chronic hepatitis C. The mean levels of IL-18 in sera were markedly elevated in patients with chronic hepatitis and cirrhosis, and were reduced in patients with resolved HCV infection. The serum IL-18 concentrations were related to the Child-Pugh severity of liver disease in cirrhotic patients. There also existed a strong positive correlation of IL-18 levels with histological activity score and necrosis. IL-18 mRNA expression was significantly up-regulated in the PBMC of cirrhotic patients when compared with other groups, while in the liver, higher levels of IL-18 transcripts were expressed in patients with chronic hepatitis C. The results of our study indicate that IL-18 levels reflect the severity and activity of HCV infection, and may contribute to the pathogenesis and progression of liver disease associated with HCV.
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Affiliation(s)
- Arpita Sharma
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
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Tongsima W, Tongsima S, Palittapongarnpim P. Outlook on Thailand's genomics and computational biology research and development. PLoS Comput Biol 2008; 4:e1000115. [PMID: 18654621 PMCID: PMC2446437 DOI: 10.1371/journal.pcbi.1000115] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Wannipha Tongsima
- National Science and Technology Development Agency (NSTDA), Pathumtani, Thailand
| | - Sissades Tongsima
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Pathumthani, Thailand
| | - Prasit Palittapongarnpim
- National Science and Technology Development Agency (NSTDA), Pathumtani, Thailand
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand
- * E-mail:
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