1
|
Yu J, Li S, Wang L, Dong Z, Si L, Bao L, Wu L. Pathogenesis of Brucella epididymoorchitis-game of Brucella death. Crit Rev Microbiol 2021; 48:96-120. [PMID: 34214000 DOI: 10.1080/1040841x.2021.1944055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Brucellosis is a worldwide zoonotic disease caused by Brucella spp. Human infection often results from direct contact with tissues from infected animals or by consumption of undercooked meat and unpasteurised dairy products, causing serious economic losses and public health problems. The male genitourinary system is a common involved system in patients with brucellosis. Among them, unilateral orchitis and epididymitis are the most common. Although the clinical and imaging aspect of orchi-epididymitis caused by brucellosis have been widely described, the cellular and molecular mechanisms involved in the damage and the immune response in testis and epididymis have not been fully elucidated. In this review, we first summarised the clinical characteristics of Brucella epididymo-orchitis and the composition of testicular and epididymal immune system. Secondly, with regard to the mechanism of Brucella epididymoorchitis, we mainly discussed the process of Brucella invading testis and epididymis in temporal and spatial order, including i) Brucella evades innate immune recognition of testicular PRRs;ii) Brucella overcomes the immune storm triggered by the invasion of testis through bacterial lipoproteins and virulence factors, and changes the secretion mode of cytokines; iii) Brucella breaks through the blood-testis barrier with the help of macrophages, and inflammatory cytokines promote the oxidative stress of Sertoli cells, damaging the integrity of BTB; iv) Brucella inhibits apoptosis of testicular phagocytes. Finally, we revealed the structure and sequence of testis invaded by Brucella at the tissue level. This review will enable us to better understand the pathogenesis of orchi-epididymitis caused by brucellosis and shed light on the development of new treatment strategies for the treatment of brucellosis and the prevention of transition to chronic form. Facing the testicle with immunity privilege, Brucella is like Bruce Lee in the movie Game of Death, winning is survival while losing is death.HIGHLIGHTSWe summarized the clinical features and pathological changes of Brucellaepididymoorchitis.Our research reveals the pathogenesis of Brucella epididymoorchitis, which mainly includes the subversion of testicular immune privilege by Brucella and a series of destructive reactions derived from it.As a basic framework and valuable resource, this study can promote the exploration of the pathogenesis of Brucella and provide reference for determining new therapeutic targets for brucellosis in the future.
Collapse
Affiliation(s)
- Jiuwang Yu
- Mongolian Medicine School, Inner Mongolia Medical University, Hohhot, China
| | - Sha Li
- Department of Pharmacy, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Lu Wang
- Department of Pharmacy, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Zhiheng Dong
- Department of Pharmacy, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Lengge Si
- Mongolian Medicine School, Inner Mongolia Medical University, Hohhot, China
| | - Lidao Bao
- Department of Pharmacy, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Lan Wu
- Mongolian Medicine School, Inner Mongolia Medical University, Hohhot, China
| |
Collapse
|
2
|
Zafari P, Zarifian A, Alizadeh-Navaei R, Taghadosi M, Rafiei A. Association between polymorphisms of cytokine genes and brucellosis: A comprehensive systematic review and meta-analysis. Cytokine 2020; 127:154949. [PMID: 31816580 DOI: 10.1016/j.cyto.2019.154949] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 11/27/2019] [Accepted: 12/02/2019] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Owing to involvement of host genetic factors in susceptibility to brucellosis infection and its outcome, this study aimed to carry out a comprehensive systematic review and meta-analysis to derive a precise evaluation of the association between the risk of brucellosis and its focal complication and all cytokines examined in case-control studies, including Interferon gamma (IFN-γ), Tumor Necrosis Factor (TNF)-α, TNF-β, Transforming Growth Factor(TGF)-β, IL-2, IL-4, IL-6, IL-10, IL-12B, IL-15, and IL-18 polymorphisms. METHODS A systematic literature search in PubMed, Web of Science, Google Scholar, and Scopus was performed to identify the relevant studies, and related information was extracted. The effect size (ES) and corresponding 95% confidence intervals (CIs) were calculated to estimate the association. RESULTS From 158 initial results, twenty-five eligible studies were included in the meta-analysis. Overall, the pooled results showed that the dominant models of IFN-γ UTR5644, TGF-β rs1800470 and rs1800471, TNF-α rs1800629, and IL-10 rs1800872 were significantly less frequent in brucellosis patients than the controls. Also, the pooled analysis of the mutant allele vs. wild allele of TGF-β rs1800471 and IL-10 rs1800872 showed negative association with brucellosis risk. On the other hand, our pooled analysis demonstrated that the mutant allele of IL-4 rs2243250 and IL-18 rs1946519 were associated with increased susceptibility to brucellosis. In addition, the IFN-γ UTR5644 and TGF-β rs1800470 were more frequent in the patients without focal forms. CONCLUSIONS IL-4 rs2243250 and IL-18 rs1946519 have a positive correlation with brucellosis whereas the IFN-γ UTR5644, TGF-β rs1800470 and rs1800471, TNF-α rs1800629, and IL-10 rs1800872 showed a negative association with this disease. The association between the other single nucleotide polymorphisms (SNP) and brucellosis risk was not confirmed in the current meta-analysis. PROSPERO Registration: CRD42018117203.
Collapse
Affiliation(s)
- Parisa Zafari
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; Student Research Committee, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ahmadreza Zarifian
- Center for Excellence in Clinical Research, Mashhad University of Medical Sciences, Mashhad, Iran; Infection Control and Hand Hygiene Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Alizadeh-Navaei
- Gastrointestinal Cancer Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mahdi Taghadosi
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Rafiei
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
| |
Collapse
|
3
|
Kazemi S, Vaisi-Raygani A, Keramat F, Saidijam M, Soltanian AR, Alahgholi-Hajibehzad M, Hashemi SH, Alikhani MY. Evaluation of the relationship between IL-12, IL-13 and TNF-α gene polymorphisms with the susceptibility to brucellosis: a case control study. BMC Infect Dis 2019; 19:1036. [PMID: 31818255 PMCID: PMC6902342 DOI: 10.1186/s12879-019-4678-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 11/29/2019] [Indexed: 12/18/2022] Open
Abstract
Background The cytokine gene polymorphism is important for the genetic susceptibility of infectious diseases. The aim of the present study was to investigate the relationship between TNF-α, IL-12, and IL-13 gene polymorphisms and predisposition to brucellosis. Methods In this study, 107 patients with brucellosis and 107 healthy individuals were evaluated. The SNPs of TNF-α)- 238 G/A) and IL-12 (+ 1188 A/C) were done by amplification refractory mutation system-polymerase chain reaction (ARMS-PCR) and IL-13 genotyping at positions − 1512 (A/C) and − 1112 (C/T) were analysis by restriction fragment length polymorphism-polymerase chain reaction (RFLP-PCR) methods. IL-12, IL-13 and TNF-α serum levels were measured by a sandwich enzyme-linked immunosorbent assay (ELISA). Results IL-13 (−1512A/C) was associated with Brucellosis risk in dominant model (OR (95% CI) = 2.17 (1.02–4.62)), P-value = 0.041. However, there was no difference in allele and genotype frequencies of TNF-α)- 238 G/A), IL-12 (+ 1188 A/C) and IL-13 [− 1512 (A/C) and − 1112 (C/T)] between patients and controls. Serum levels of IL-12 and TNF-α were significantly more frequent in the patients than in the control groups. Conclusions The IL-13 gene polymorphism can be used as a biomarker for detecting susceptibility to Brucella disease.
Collapse
Affiliation(s)
- Sima Kazemi
- Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Asad Vaisi-Raygani
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fariba Keramat
- Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Massoud Saidijam
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ali Reza Soltanian
- Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Seyed Hamid Hashemi
- Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Yousef Alikhani
- Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran. .,Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
| |
Collapse
|
4
|
Hou Y, Bai L, Jiang N, Yao Z, Xue L, Yu B. Screening of TNF-α gene polymorphisms in patients with extremity chronic osteomyelitis in China. Per Med 2018; 15:395-401. [PMID: 30259788 DOI: 10.2217/pme-2018-0017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIM This study aims to investigate the link between TNF-α gene SNPs and patients with extremity chronic osteomyelitis in China. METHODOLOGY Our study included 433 subjects, composed of 233 extremity chronic osteomyelitis patients and 200 controls. Six single-nucleotide polymorphisms (rs1799964, rs1800630, rs1799724, rs1800750, rs1800629 and rs361525) in TNF-α gene were detected by the SNaPshot genotyping method. RESULTS Significant genotype distribution of rs1799964 was identified between patients and healthy controls (p = 0.045). In addition, statistical difference was found between rs1799964 SNP and the susceptibility to extremity chronic osteomyelitis (p = 0.044). CONCLUSION We reported for the first time that TNF-α gene SNP rs1799964 contributes to the elevated venture of extremity chronic osteomyelitis in China.
Collapse
Affiliation(s)
- Yilong Hou
- Guangdong Provincial Key Laboratory of Bone & Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Lang Bai
- Guangdong Provincial Key Laboratory of Bone & Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Nan Jiang
- Guangdong Provincial Key Laboratory of Bone & Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, PR China.,Department of Orthopaedics & Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Zilong Yao
- Guangdong Provincial Key Laboratory of Bone & Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Li Xue
- 8th Department of Orthopaedics, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, PR China
| | - Bin Yu
- Guangdong Provincial Key Laboratory of Bone & Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, PR China.,Department of Orthopaedics & Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| |
Collapse
|
5
|
Genetic modifications of cytokine genes and Toxoplasma gondii infections in pregnant women. Microb Pathog 2018; 121:283-292. [PMID: 29859292 DOI: 10.1016/j.micpath.2018.05.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 05/17/2018] [Accepted: 05/28/2018] [Indexed: 01/05/2023]
Abstract
PURPOSE Toxoplasma gondii causes one of the most common intrauterine infections worldwide, thus being a severe threat during pregnancy. IL1, IL6, IL10, IL12, and TNF-α cytokines were reported to be involved in immune responses to infections with T. gondii. The research was aimed to reveal relationships between genetic changes within the polymorphisms of these cytokine genes and the incidence of T. gondii infection among pregnant women, as well as congenital transmission of the parasite to the foetuses of their infected mothers. METHODS The primary study was performed in 148 Polish pregnant women, including 74 T. gondii-infected patients and 74 age-matched uninfected individuals; and further analysis - among the additional 142 pregnant women. Genotypes within IL1A -889 C>T, IL1B +3954 C>T, IL6 -174 G>C, IL10 -1082 G>A, IL12B -1188 A>C and TNFA -308 G>A single nucleotide polymorphisms (SNPs) were determined, using self-designed nested PCR-RFLP assays. Randomly selected PCR products, representing distinct genotypes in the analyzed polymorphisms, were confirmed by sequencing, using the Sanger method. A statistical analysis was carried out of relationships between genetic alterations within studied SNPs and the occurrence of T. gondii infection, using the following tools: cross-tabulation, Pearson's Chi-square test and the logistic regression model to estimate genetic models of inheritance. A power analysis of statistically significant outcomes was performed by Cramér's V test. RESULTS A multiple-SNP analysis showed TC haplotype for IL1A and IL1B SNPs to be significantly associated with a decreased risk of the parasitic infection (OR 0.41, P≤0.050). The association remained important after power analysis (Cramér's V = 0.39, χ2 = 7.73, P≤0.050), and the additional analysis with larger groups of patients (OR 0.47, P≤0.050). Moreover, the CCCAGA complex variants were for all the studied polymorphisms at an increased risk of T. gondii infection (OR 8.14, P≤0.050), although this strong relationship was not significant in the further analysis (Cramér's V = 0.76, χ2 = 26.81, P = 0.310). Regarding the susceptibility to congenital transmission of T. gondii from mothers to their foetuses among the infected pregnant women, the presence of GA heterozygotic status within IL10 polymorphism significantly increased the risk of parasitic transmission (OR 5.73 in the codominant model and OR 5.18 in the overdominant model; P≤0.050). The correlation stayed important in the power analysis (Cramér's V = 0.29, χ2 = 6.03, P≤0.050), although it was non-significant in larger groups of patients. Important relationships specific for the first study cohort remained non-significant in the second group of studied pregnant women. CONCLUSIONS Within the analyzed cohort of Polish pregnant women, the genetic modifications from SNPs of genes, encoding both the proinflammatory IL1α, IL1β, IL6, IL12 and TNF-α, and anti-inflammatory IL10 cytokines, may have been associated with susceptibility to T. gondii infection. It is the first study on the contribution of cytokine genes polymorphisms to the occurrence of T. gondii infection during pregnancy. Further studies for other populations of pregnant women would be justified to reveal a detailed role of the analyzed polymorphisms for the occurrence of T. gondii infections during pregnancy.
Collapse
|
6
|
Interleukin-17 A and F gene polymorphisms affect the risk of tuberculosis: An updated meta-analysis. Indian J Tuberc 2017; 65:200-207. [PMID: 29933861 DOI: 10.1016/j.ijtb.2017.08.027] [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: 03/31/2017] [Revised: 06/13/2017] [Accepted: 08/18/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND Cytokines are fundamental elements in mediating and stimulating the immune response against tuberculosis (TB). Growing evidence indicated that polymorphisms in the interleukin-17 (IL-17) A and F genes are implicated in TB. OBJECTIVES This meta-analysis was aimed to re-evaluate and update the relationship between IL-17A rs2275913 G/A and IL17F rs763780 T/C polymorphisms and TB risk. METHODS Using inclusive searches of the PubMed, MEDLINE, EMBASE, Web of Science and Elsevier Science Direct, we identified outcome data from all articles estimating the association between IL-17 A and F polymorphisms and TB risk. RESULTS A total of 15 studies comprising 7130 patients and 7540 controls were included. Our pooled analysis demonstrated that the IL-17A rs2275913 G/A SNP was not associated with the risk of TB in overall, or in Asians and Caucasians, but it conferred resistance to TB in Latin Americans using allele (OR=0.53), codominant (OR=0.53 and 0.38), dominant (OR=0.49) and recessive (OR=0.46) inheritance models. For IL-17F rs763780 T/C, the pooled evidence indicated that this variation was a risk factor for TB in allele (C vs T) and dominant (TC+CC vs TT) models in overall (OR of 1.35) and among Asians (OR=1.40), but not in Caucasians. CONCLUSION In summary, our meta-analysis suggested that the IL-17A rs2275913 was a protective factor against TB, but -17F rs763780 T/C was a risk factor for TB.
Collapse
|
7
|
Eskandari E, Dahmardeh T, Safdari V, Khosravi S, Pahlevani E. HLA-G gene 14-bp deletion variant protects Iranian subjects against chronic hepatitis B infection. Int J Immunogenet 2017; 44:322-327. [PMID: 28929613 DOI: 10.1111/iji.12337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 07/02/2017] [Accepted: 08/06/2017] [Indexed: 01/19/2023]
Abstract
To investigate whether 14-bp Ins/Del polymorphism in HLA-G gene is associated with the risk of chronic hepatitis B (CHB) infection. This study was performed on a total of 396 individuals including 199 CHB patients and 197 healthy subjects from a south-east Iranian population. We genotyped 14-bp Ins/Del polymorphism in the HLA-G gene using polymerase chain reaction method. The results of our study revealed that the HLA-G 14-bp deletion polymorphism was associated with a reduced risk of CHB at both allele and genotypic levels. The 14-bp Del allele and Ins/Del genotype were more frequent in control group than in CHB patients (37% vs 28% for Del allele with OR = 0.68 and p-value = .015; 73% vs 52% for Ins/Del genotype with OR = 0.43 and p-value = .001) and both were protective factors against CHB. However, no difference was found in the distribution of HLA-G 14-bp genotypes among subjects with varied levels of HBV DNA or hepatic enzymes (p > .05). Our findings, for the first time, suggest that the HLA-G 14-bp Ins/Del polymorphism may be a marker for genetic susceptibility to CHB infection.
Collapse
Affiliation(s)
- E Eskandari
- Genetic of Non-Communicable Disease Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - T Dahmardeh
- Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| | - V Safdari
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - S Khosravi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Zahedan, Iran
| | - E Pahlevani
- Infectious Diseases & Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| |
Collapse
|
8
|
Youssef DM, El-Shal AS, Hussein S, Salah K, Ahmed AERE. Tumor necrosis factor alpha gene polymorphisms and haplotypes in Egyptian children with nephrotic syndrome. Cytokine 2017; 102:76-82. [PMID: 28803697 DOI: 10.1016/j.cyto.2017.06.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 05/31/2017] [Accepted: 06/27/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Nephrotic syndrome (NS) characterized by complex pathogenesis and clinical course with relapses; and needs novel breakthroughs for decades. Polymorphisms of cytokines genes including tumor necrosis factor alpha (TNF-α)may influence susceptibility to NS as well as different patients' steroid responses. In the current study, we demonstrated the potential roles of TNF-α promoter gene polymorphisms [-238, -308, -863] and haplotypes in susceptibility to childhood NS. Also, elucidating their possible influence on patients' steroid response and serum TNF-α level. METHODS This case-control study included 150 children suffering from NS and 150 healthy children. Polymerase chain reaction- restriction-fragment length polymorphism (PCR-RFLP) was performed to evaluate different TNF-α gene polymorphism. TNF-α serum levels were assessed by ELISA. RESULTS Serum TNF-α levels were significantly higher in NS patients than in controls and in steroid resistant NS (SRNS) than in steroid sensitive NS (SSNS) (P<0.001 for each). The risk of NS in patients carrying TNF-α-238GA genotype, and TNF-α-308GA or AA genotypes and allele A was significantly increased compared to healthy children. While no significant association was detected between TNF-α-863 and NS. The risk of resistance to steroid therapy was significantly high in NS carrying TNF-α-238GA genotype and A allele, TNF-α-308, AA genotypes and A allele, and TNF-α-863CA, AA genotypes and A allele. The TNF-α GCG (-308/-863/-238) haplotype has protective roles against NS and steroid resistance. However, the risk of NS was significantly high in TNF-α AAG and AAA haplotype's carriers compared to healthy children. Additionally the risk of steroid resistance was significantly high in TNF-α AAA haplotype's NS carrier (OR (95%CI): 2.2 (1.19-4.36), P=0.01). Moreover, we found significant higher serum TNF-α levels NS patients including SSNS and SRNS carrying mutant allele TNF-α-238GA genotype, -308GA and AA and -863CA and AA wild genotype's carriers than in those GG, GG and CC respectively. Interstingely, TNF-α levels were significantly higher in healthy children carrying TNF-α(-308/-863/-238) [AAG and AAA haplotypes], NS cases carrying [ACA, AAG, AAA haplotypes], and in SSNS carrying [ACA and AAA haplotypes] than in those carrying GCG, haplotype of wild alleles. CONCLUSION This study reported, for the first time, that TNF-α promoter gene polymorphisms and/or haplotypes are risk factors of NS and resistance to steroid among Egyptian children.
Collapse
Affiliation(s)
- Doaa M Youssef
- Pediatrics Department, Faculty of Medicine, Zagazig University, Egypt
| | - Amal S El-Shal
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Zagazig University, Egypt.
| | - Samia Hussein
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Zagazig University, Egypt
| | - Khaled Salah
- Pediatrics Department, Faculty of Medicine, Zagazig University, Egypt
| | | |
Collapse
|
9
|
Eskandari E, Metanat M, Pahlevani E, Nakhzari-Khodakheir T. Association between TGFβ1 polymorphisms and chronic hepatitis B infection in an Iranian population. Rev Soc Bras Med Trop 2017; 50:301-308. [PMID: 28700046 DOI: 10.1590/0037-8682-0266-2016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 03/06/2017] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION: Transforming growth factor-beta 1 (TGFβ1) is a potent suppressive cytokine that contributes to chronic hepatitis B (CHB) infection. Disparities in TGFβ1 production among individuals have been attributed to TGFβ1 genetic polymorphisms. We examined whether three putative polymorphisms in TGFβ1[-509 C/T (rs1800469), +869 C/T (rs1800470), and +11929 C/T (rs1800472)]are associated with CHB infection in a South-Eastern Iranian population. METHODS: In total, 341 subjects were recruited, including 178 patients with CHB and 163 healthy individuals as controls. Genotyping of the three TGFβ1 SNPs was performed by tetra amplification refractory mutation system-PCR. RESULTS: TheTGFβ1 +869 TT vs.CC genotype in codominant (OR=0.445, p=0.012) and TT vs. TC+CC in the recessive (OR=0.439, p=0.003) model as well as the variant allele T vs. C(OR=0.714, p=0.038) were associated with lower CHB infection risk. However, the +11929 C/T polymorphism was associated with increased CHB risk, and the CT vs. CC genotype (OR=2.77, P=0.001) and T variant allele (OR=2.53, P=0.002) were risk factors for CHB. Furthermore, TTT (+869/-509/+11929) and CCC haplotypes were risk and protective factors for CHB, respectively. We found no significant association between viral DNA load and TGFβ1 genotype or hepatic enzyme levels (p >0.05). CONCLUSIONS: Results indicated that the TGFβ1+869TT genotype and T allele were protective factors, whereas the +11929 CT genotype and T allele were risk factors for CHB infection.
Collapse
Affiliation(s)
- Ebrahim Eskandari
- Genetic of Non-Communicable Disease Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Malihe Metanat
- Infectious Diseases & Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Elham Pahlevani
- Infectious Diseases & Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | | |
Collapse
|