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Abdelaziz AI, Abdelsameea E, Abdel-Samiee M, Ghanem SE, Wahdan SA, Elsherbiny DA, Zakaria Z, Azab SS. Effect of immunogenetics polymorphism and expression on direct-acting antiviral drug response in chronic hepatitis C. Clin Exp Med 2024; 24:184. [PMID: 39117877 PMCID: PMC11310263 DOI: 10.1007/s10238-024-01432-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 07/09/2024] [Indexed: 08/10/2024]
Abstract
The prevalence of HCV infection in Egypt has decreased following the introduction of direct-acting antiviral therapy. However, treatment response is influenced by various factors, particularly host immunogenetics such as IL-28B and FOXP3 polymorphisms. The current study examined the impact of SNPs in the FOXP3 gene promoter region on HCV-infected Egyptian patients, along with SNPs in the IL28B gene.This study involved 99 HCV patients who achieved SVR12 after a 12 week DAA treatment while 63 HCV patients experienced treatment failure. IL28B rs12979860 SNP was identified using real-time PCR, while IL28B rs8099917, FOXP3 rs3761548, and rs2232365 SNPs were analyzed using RFLP-PCR. Serum levels of IL28B and FOXP3 were quantified using ELISA technique in representative samples from both groups. The IL28B rs12979860 T > C (P = 0.013) and FOXP3 rs2232365 A > G polymorphisms (P = 0.008) were found to significantly increase the risk of non-response. Responders had higher IL28B serum levels (P = 0.046) and lower FOXP3 levels (P < 0.001) compared to non-responders. Regression analysis showed an association between IL28B rs12979860 and FOXP3 rs2232365 with treatment response, independent of age and gender. A predictive model was developed with 76.2% sensitivity and 91.9% specificity for estimating DAAs response in HCV patients.Our findings confirmed the IL28B rs12979860 T > C and FOXP3 rs2232365 A > G polymorphisms significantly affect DAA treatment response in HCV Egyptian patients. Lower levels of IL-28B along with higher levels of FOXP3 are linked to poor response. Our results may lead to new insights into DAA responsiveness contributing to personalized medicine and improving therapeutic decision-making for HCV patients.
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Affiliation(s)
- Aya Ismail Abdelaziz
- Department of Research and Development, Faculty of Pharmacy, Heliopolis University for Sustainable Development, Cairo, Egypt
| | - Eman Abdelsameea
- Department of Hepatology and Gastroenterology, National Liver Institute, Menoufia University, Shebin El-Kom, Egypt
| | - Mohamed Abdel-Samiee
- Department of Hepatology and Gastroenterology, National Liver Institute, Menoufia University, Shebin El-Kom, Egypt
| | - Samar E Ghanem
- Department of Clinical Biochemistry and Molecular Diagnostics, National Liver Institute, Menoufia University, Shebin El-Kom, Egypt
| | - Sara A Wahdan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
| | - Doaa A Elsherbiny
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
| | - Zeinab Zakaria
- Department of Research and Development, Faculty of Pharmacy, Heliopolis University for Sustainable Development, Cairo, Egypt
| | - Samar S Azab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt.
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Madureira MWS, Queiroz MAF, Lima SS, Pereira LMS, da Costa CA, de Sousa MS, Feitosa RNM, Monteiro JC, Ishak R, Vallinoto ACR, Rangel da Silva ANM. The FOXP3-924 A/G Single Nucleotide Polymorphism May Be Associated with Predictive Factors for Human T Lymphotropic Virus 1 Associated Myelopathy. Viral Immunol 2023; 36:136-143. [PMID: 36745398 DOI: 10.1089/vim.2022.0149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Human T lymphotropic virus 1 (HTLV-1) is a retrovirus associated with inflammatory diseases, including HTLV-1-associated myelopathy (HAM), and host genetic factors may be involved in disease evolution. The forkhead Box P3 (FOXP3) transcription factor is linked to homeostasis of the immune system, and the presence of polymorphisms in the promoter region of the FOXP3 gene should reflect its expression levels and consequent activation of regulatory T cells, which may contribute to severe inflammatory disorders, such as HAM. This study evaluated the rs2232365 polymorphism (-924 A/G) located in the promoter region of the FOXP3 gene and its association with HAM. Forty DNA samples from asymptomatic carriers and 25 samples from HAM patients were used, in addition to 130 control samples. The polymorphism was genotyped by conducting real-time polymerase chain reaction (PCR) (quantitative PCR [qPCR]) on extracted DNA. The proviral loads (PVLs) and CD4+ and CD8+ T lymphocyte counts were determined by qPCR and FACSCalibur flow cytometry, respectively. The PVLs, CD4+ T lymphocyte concentrations, and tumor necrosis factor-α dosages were considered predictive factors of the clinical profiles of HTLV-1 infection, all of which had higher levels in the HAM group. Carriers of the GG genotype for the polymorphism rs2232365 had high PVLs and CD4+ T lymphocyte concentrations.
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Affiliation(s)
- Max W S Madureira
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Maria Alice F Queiroz
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Sandra S Lima
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Leonn M S Pereira
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Carlos A da Costa
- Tropical Medicine Nucleus, Federal University of Pará, Belém, Brazil
| | - Maísa S de Sousa
- Tropical Medicine Nucleus, Federal University of Pará, Belém, Brazil
| | - Rosimar N M Feitosa
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Jacqueline C Monteiro
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Ricardo Ishak
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Antonio C R Vallinoto
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
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AKGÖLLÜ E. Effect of FOXP3 gene variants on the immune-active HBV and inactive HBV phases. CUKUROVA MEDICAL JOURNAL 2021. [DOI: 10.17826/cumj.978353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kao HH, Yu RL, Chuang WL, Huang JF, Dai CY, Tan CH. Genetic polymorphisms of regulatory T cell-related genes modulate systemic inflammation induced by viral hepatitis. Kaohsiung J Med Sci 2021; 37:1000-1009. [PMID: 34166564 DOI: 10.1002/kjm2.12414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/18/2021] [Accepted: 06/10/2021] [Indexed: 01/08/2023] Open
Abstract
Viral hepatitis is a devastating disease with the risk for cirrhosis and carcinogenicity. Regulatory T cells (Tregs) play important roles in the disease course of viral hepatitis via maintaining the balance between overt-immune responses and viral replications. We hypothesized that genetic polymorphisms of Treg-related genes, such as interleukin-2, transforming growth factor-β 1 (TGF-β1), forkhead box P3 (FOXP3), and adenylyl cyclase type 9 modulate the hosts' immune regulation under circumstances of viral hepatitis. We examined the effect of five single nucleotide polymorphisms (SNPs) of Treg-related genes on the levels of C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR), alanine aminotransferase, and non-invasive hepatic fibrosis marker (Fibrosis-4 index) in a total of 138 participants with viral hepatitis. The rs1800469 (a TGF-β1 SNP) GG genotype is associated with higher serum CRP levels, and the rs3761547 (a FOXP3 SNP) C allele in the females is associated with higher ESR levels. Besides, female participants carrying the rs3761547 C allele had a significantly higher Fibrosis-4 (FIB-4) index than the females carrying the TT genotype, while the rs3761547 C allele had the opposite effect in males. With linear-regression moderation analysis, we found that sex moderated the impact of the FOXP3 SNP on the levels of FIB-4, whereas the FOXP3 SNP caused the opposite effect between males and females on the severity of hepatic fibrosis. These results provide evidence for the participation of TGF-β1 and FOXP3 in the inflammatory responses associated with viral hepatitis, where FOXP3 function may be moderated by sex.
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Affiliation(s)
- Hsueh-Hsin Kao
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Rwei-Ling Yu
- Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wan-Long Chuang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jee-Fu Huang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chia-Yen Dai
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chun-Hsiang Tan
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Machado LFA, Fonseca RRDS, Queiroz MAF, Oliveira-Filho AB, Cayres-Vallinoto IMV, Vallinoto ACR, Ishak MDOG, Ishak R. The Epidemiological Impact of STIs among General and Vulnerable Populations of the Amazon Region of Brazil: 30 years of Surveillance. Viruses 2021; 13:v13050855. [PMID: 34067165 PMCID: PMC8151421 DOI: 10.3390/v13050855] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 12/13/2022] Open
Abstract
Sexually transmitted infections (STIs) represent a worldwide public health problem and, although many of them are curable, they continue to be neglected, especially in areas with a low human development index, such as in the northern region of Brazil. This review describes the results of 30 years of studies at the Virus Laboratory at the Federal University of Pará, including the prevalence and molecular epidemiology of HIV-1, HTLV-1/2, HPV, HBV, Treponema pallidum and Chlamydia trachomatis among urban and non-urban populations, and also in vulnerable groups in the Brazilian Amazon. Control strategies and challenges in preventing STIs are discussed considering this immense geographic region, where essential health services are unable to reach the entire population, especially the most vulnerable, such as female sex workers, people who use illicit drugs, remnants of quilombolos and indigenous communities.
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Affiliation(s)
- Luiz Fernando Almeida Machado
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belém 66.075-110, Brazil; (R.R.d.S.F.); (M.A.F.Q.); (I.M.V.C.-V.); (A.C.R.V.); (M.d.O.G.I.); (R.I.)
- Correspondence:
| | - Ricardo Roberto de Souza Fonseca
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belém 66.075-110, Brazil; (R.R.d.S.F.); (M.A.F.Q.); (I.M.V.C.-V.); (A.C.R.V.); (M.d.O.G.I.); (R.I.)
| | - Maria Alice Freitas Queiroz
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belém 66.075-110, Brazil; (R.R.d.S.F.); (M.A.F.Q.); (I.M.V.C.-V.); (A.C.R.V.); (M.d.O.G.I.); (R.I.)
| | - Aldemir Branco Oliveira-Filho
- Grupo de Estudo e Pesquisa em Populações Vulneráveis, Instituto de Estudos Costeiros, Universidade Federal do Pará, Bragança 68.600-000, Brazil;
| | - Izaura Maria Vieira Cayres-Vallinoto
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belém 66.075-110, Brazil; (R.R.d.S.F.); (M.A.F.Q.); (I.M.V.C.-V.); (A.C.R.V.); (M.d.O.G.I.); (R.I.)
| | - Antonio Carlos Rosário Vallinoto
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belém 66.075-110, Brazil; (R.R.d.S.F.); (M.A.F.Q.); (I.M.V.C.-V.); (A.C.R.V.); (M.d.O.G.I.); (R.I.)
| | - Marluísa de Oliveira Guimarães Ishak
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belém 66.075-110, Brazil; (R.R.d.S.F.); (M.A.F.Q.); (I.M.V.C.-V.); (A.C.R.V.); (M.d.O.G.I.); (R.I.)
| | - Ricardo Ishak
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belém 66.075-110, Brazil; (R.R.d.S.F.); (M.A.F.Q.); (I.M.V.C.-V.); (A.C.R.V.); (M.d.O.G.I.); (R.I.)
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Pereira LMS, da Silva Madureira MW, de Castro RBH, Abreu IN, da Silva Conde SRS, Demachki S, de Sousa MS, Queiroz MAF, Rangel da Silva ANM, Lima SS, de Oliveira Guimarães Ishak M, Ishak R, Vallinoto ACR. Sex and FOXP3 gene rs2232365 polymorphism may be associated with the clinical and pathological aspects of chronic viral diseases. BMC Immunol 2020; 21:60. [PMID: 33213373 PMCID: PMC7678194 DOI: 10.1186/s12865-020-00387-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 11/04/2020] [Indexed: 11/10/2022] Open
Abstract
Background The forkhead box protein 3 (FOXP3) transcription factor is one of the main markers of immunological suppression in different pathological profiles, and the presence of polymorphic variants may alter the gene expression of this factor. Despite descriptions of an association between the presence of the rs2232365 polymorphism and chronic diseases, the role of the sex variant in this context has not yet been elucidated, as the FOXP3 gene is located on the human sex chromosome X. Results To contribute to this topic, 323 women and 373 men were enrolled in the study, of which 101 were diagnosed with chronic viral liver diseases (39 women and 62 men), 67 with HTLV-1 infection (44 women and 23 men), 230 with coronary artery disease (91 women and 139 men) and 298 healthy and uninfected blood donors (149 women and men). They were genotyped for the rs2232365 polymorphism. The rs2232365 polymorphism was associated with clinical and pathological aspects and biomarkers of viral infections only in men, with functional differences between different infections. Conclusions A relationship is suggested between sex and FOXP3 rs2232365 polymorphism, resulting in different biological repercussions.
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Affiliation(s)
- Leonn Mendes Soares Pereira
- Virology Laboratory, Biological Sciences Institute, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, Brazil
| | - Max Willy da Silva Madureira
- Virology Laboratory, Biological Sciences Institute, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, Brazil
| | - Renata Bezerra Hermes de Castro
- Hematology and Hemotherapy Center Foundation of the State of Pará (Fundação Centro de Hematologia e Hemoterapia do Estado do Pará), Belém, Brazil
| | - Isabella Nogueira Abreu
- Virology Laboratory, Biological Sciences Institute, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, Brazil
| | | | - Sâmia Demachki
- Medical School, Biological Sciences Institute, UFPA, Belém, Brazil
| | | | - Maria Alice Freitas Queiroz
- Virology Laboratory, Biological Sciences Institute, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, Brazil
| | - Andrea Nazaré M Rangel da Silva
- Virology Laboratory, Biological Sciences Institute, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, Brazil
| | - Sandra Souza Lima
- Virology Laboratory, Biological Sciences Institute, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, Brazil
| | | | - Ricardo Ishak
- Virology Laboratory, Biological Sciences Institute, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, Brazil
| | - Antonio Carlos Rosário Vallinoto
- Virology Laboratory, Biological Sciences Institute, Federal University of Pará (Universidade Federal do Pará - UFPA), Belém, Brazil.
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Beigh AH, Rasool R, Masoodi M, Qureshi T, Qadri Q, Shah ZA. Influence of single gene variants of FOXP3 on allergic asthma predisposition. Gene 2020; 763:145073. [PMID: 32827684 DOI: 10.1016/j.gene.2020.145073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/31/2020] [Accepted: 08/17/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND The role of FoxP3, a master regulator of T regulatory cells, in allergic diseases such as asthma is of immense importance yet the effect of its gene variants on the disease predisposition is not fully understood. We studied the association of FoxP3 polymorphisms (-2383C/T and -3279C/A) in allergic asthma patients and their correlation with serum IL-4, IL-13, Total IgE, and Vitamin D levels. METHODS In this study 350 individuals were enrolled, 150 allergic asthma patients and 200 healthy controls. SNP analyses were performed by RFLP. IL-4, IL-13 vitamin D and Total IgE were measured by ELISA. RESULTS The AA homozygous mutant of -3279C/A posed a three-fold risk [P < 0.005; OR, 3.52] whereas the -2383C/T variants TT genotype carried a fourfold risk [P = 0.002; OR, 4.04]. Haplotype analysis exhibited predisposition to allergic asthmawith CC/TT [P = 0.01; OR 5.93 (95%CI)], AA/CC [P = 0.01; OR 3.29] and AA/TT haplotypes [P = 0; OR 11.86 (1.31-85.87)]. A negative correlation between IgE and Vitamin D was found [r = -0.30p-value 0.001] but a negative correlation betweenIgE and Vit D was established in the haplotype CC/TT [r = -0.45P = 0.002] and CC/CT [r = -0.52P = 0.04]. In allergic patients, the eosinophils count was high [p = 0.003] and the mean levels of pro-inflammatory cytokines IL-4 and IL-13 were elevated [P < 0.001] as well. CONCLUSIONS The study suggests SNP -3279 -AA genotype and, -2383-TT genotype in association with certain haplotypes pose a risk for allergy development. There was no correlation between different genotypes and serum levels of various cytokines.
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Affiliation(s)
- Afaq H Beigh
- Allergy Clinic, Department of Immunology, and Molecular Medicine Sher I Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - Roohi Rasool
- Allergy Clinic, Department of Immunology, and Molecular Medicine Sher I Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India.
| | - Mahak Masoodi
- Allergy Clinic, Department of Immunology, and Molecular Medicine Sher I Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - Taha Qureshi
- Allergy Clinic, Department of Immunology, and Molecular Medicine Sher I Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - Qurteeba Qadri
- Allergy Clinic, Department of Immunology, and Molecular Medicine Sher I Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - Zafar A Shah
- Allergy Clinic, Department of Immunology, and Molecular Medicine Sher I Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
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de Castro GLC, Bichara CDA, Santiago AM, de Brito WB, Pereira LMS, Moura TCF, da Silva Graça Amoras E, de Araújo MSM, da Silva Conde SRS, Queiroz MAF, Ishak R, Vallinoto ACR. Polymorphisms in the TGFB1 and FOXP3 genes are associated with the presence of antinuclear antibodies in chronic hepatitis C. Heliyon 2020; 6:e04524. [PMID: 32743104 PMCID: PMC7387822 DOI: 10.1016/j.heliyon.2020.e04524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/11/2020] [Accepted: 07/17/2020] [Indexed: 11/18/2022] Open
Abstract
Chronic infection with Hepacivirus C (HCV) can lead to the occurrence of antinuclear antibodies (ANAs) and changes in cytokine profiles that can be similar to autoimmune diseases. The aim of the study was to identify polymorphisms in important mediators of the immune response in association with ANAs, which could contribute to the development of autoimmunity in hepatitis C. The study included 87 patients with chronic hepatitis C who were evaluated for the presence of ANA (indirect immunofluorescence) and for polymorphisms in the FOXP3, IFNG, IL6, IL8, IL10, MBL2, CRP, TGFΒ1 and TNFA genes (real-time PCR). Of the patients evaluated, 17 (19.54%) had ANA reactivity. The G allele of the FOXP3 rs2232365 polymorphism was more frequent in ANA-positive women (p = 0.0231; OR = 3,285). The C allele of the TGFΒ1 rs1800469 polymorphism was associated with ANA production (p = 0.0169; OR = 2.88). The results suggest that polymorphisms in genes related to immunological regulation may be associated with mechanisms that lead to the emergence of autoantibodies in the context of chronic Hepacivirus C infection.
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Affiliation(s)
| | - Carlos David A. Bichara
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
| | - Angélica Menezes Santiago
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
| | - William Botelho de Brito
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
| | | | | | | | - Mauro Sérgio Moura de Araújo
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
- Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, PA, Brazil
| | | | | | - Ricardo Ishak
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
| | - Antonio Carlos Rosário Vallinoto
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
- Corresponding author.
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Pereira LMS, da Silva Graça Amoras E, da Silva Conde SRS, Demachki S, dos Santos EJM, Lima SS, Ishak R, Rosário Vallinoto AC. NGF (-198C > T, Ala35Val) and p75 NTR (Ser205Leu) gene mutations are associated with liver function in different histopathological profiles of the patients with chronic viral hepatitis in the Brazilian Amazon. Mol Med 2020; 26:12. [PMID: 31996124 PMCID: PMC6990582 DOI: 10.1186/s10020-019-0134-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 12/29/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUNDS Neural growth factor (NGF) is a neurotrophin that can interact with the p75NTR receptor and initiate a cascade of reactions that determines cell survival or death, and both are associated with the physiology of liver tissue. Single nucleotide polymorphisms (SNPs) in the NGF and p75NTR genes have been investigated in different pathologies; however, there are no studies that have analyzed their biological roles in the hepatic microenvironment. In the present study, we evaluated the impact of SNPs in these genes on the maintenance of liver function at different stages of inflammation and fibrosis in patients with chronic viral liver disease in the Brazilian Amazon. METHODS The SNPs -198C > T, Arg80Gln, Val72Met, Ala35Val, Ala18Ala and Ser205Leu were genotyped by real-time PCR in samples from patients with chronic viral hepatitis stratified by stage of inflammation and liver fibrosis. Histopathological, viral load (VL), liver enzyme and comorbidities data were obtained from updated medical records. Other aspects were highlighted by applied epidemiological questionnaires. RESULTS The -198C/T and Ala35Val polymorphisms in NGF were associated with changes in histopathological profiles, VL and liver enzymes. Ser205Leu polymorphism in p75NTR was associated only with changes in VL and liver enzymes. Polymorphic frequencies were variable among different ethnic populations, mainly for biologically relevant polymorphisms. A multifactorial network of interactions has been established based on genetic, virological, behavioral and biochemical aspects. CONCLUSION Mutations in the NGF (-198C > T, Ala35Val) and p75NTR (Ser205Leu) genes, within the list of multifactorial aspects, are associated with liver function in different histopathological profiles of patients with chronic viral liver disease in the Brazilian Amazon.
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Affiliation(s)
- Leonn Mendes Soares Pereira
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
| | | | | | - Sâmia Demachki
- School of Medicine, Health Science Institute, Federal University of Pará, Belém, Pará Brazil
| | - Eduardo José Melo dos Santos
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
- Laboartory of Human and Medical Genetics, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
| | - Sandra Souza Lima
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
| | - Ricardo Ishak
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
| | - Antonio Carlos Rosário Vallinoto
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
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