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Ouaguia L, Moralès O, Aoudjehane L, Wychowski C, Kumar A, Dubuisson J, Calmus Y, Conti F, Delhem N. Hepatitis C Virus Improves Human Tregs Suppressive Function and Promotes Their Recruitment to the Liver. Cells 2019; 8:cells8101296. [PMID: 31652598 PMCID: PMC6829901 DOI: 10.3390/cells8101296] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/09/2019] [Accepted: 10/10/2019] [Indexed: 12/31/2022] Open
Abstract
Background: The role of regulatory T cells (Tregs) is now well established in the progression of hepatocellular carcinoma (HCC) linked to Hepatitis C virus (HCV) infection. However, nothing is known about the potential interplay between Tregs and HCV. In this pilot study, we have investigated the ability of Tregs to hang HCV on and the subsequent effect on their suppressive function and phenotype. Moreover, we have evaluated how HCV could promote the recruitment of Tregs by infected primary human hepatocytes. Methods: Tregs of healthy donors were incubated with JFH-1/HCVcc. Viral inoculation was assessed using adapted assays (RT-qPCR, Flow Citometry (FACS) and Western Blot (WB). Expression of Tregs phenotypic (CD4, CD25, CD127 and Foxp3) and functional (IL-10, GZMB, TGF-β1 and IL-2) markers was monitored by RT-qPCR, FACS and ELISA. Suppressive activity was validated by suppressive assays. Tregs recruitment by infected primary hepatic cells was evaluated using Boyden Chamber. Results: Tregs express the classical HCV receptors (CD81, CLDN1 and LDLR) and some co-receptors (CD5). HCV inoculation significantly increases the suppressive phenotype and activity of Tregs, and raises their anergy by inducing an unexpected IL-2 production. Moreover, HCV infection induces the expression of chemokines (CCL17, CXCL16, and CCL20) by primary hepatic human hepatocytes and chemokine receptors (CCR4, CXCR6 and CCR6) by Tregs. Finally, infected hepatocytes have a significantly higher potential to recruit Tregs in a seemingly CCL20-dependent manner. Conclusions: Direct interaction between HCV and Tregs represents a newly defined mechanism that could potentiate HCV immune evasion and favor intratumoral recruitment contributing to HCC progression.
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Affiliation(s)
- Laurissa Ouaguia
- Université Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France.
- CNRS-UMR 8161, F-59000 Lille, France.
- Institut Pasteur de Lille, F-59000 Lille, France.
| | - Olivier Moralès
- Université Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France.
- CNRS-UMR 8161, F-59000 Lille, France.
- Institut Pasteur de Lille, F-59000 Lille, France.
| | - Lynda Aoudjehane
- Sorbonne Université, INSERM, Institute of Cardiometabolism and Nutrition (ICAN), F-75013 Paris, France.
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine (CRSA), F-75012 Paris, France.
| | - Czeslaw Wychowski
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France.
| | - Abhishek Kumar
- Université Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France.
- CNRS-UMR 8161, F-59000 Lille, France.
- Institut Pasteur de Lille, F-59000 Lille, France.
| | - Jean Dubuisson
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France.
| | - Yvon Calmus
- Sorbonne Université, INSERM, Institute of Cardiometabolism and Nutrition (ICAN), F-75013 Paris, France.
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine (CRSA), F-75012 Paris, France.
- Assistance Publique-Hôpitaux de Paris (AP-HP), Pitié-Salpêtrière Hospital, Department of Medical Liver Transplantation, F-75013 Paris, France.
| | - Filomena Conti
- Sorbonne Université, INSERM, Institute of Cardiometabolism and Nutrition (ICAN), F-75013 Paris, France.
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine (CRSA), F-75012 Paris, France.
- Assistance Publique-Hôpitaux de Paris (AP-HP), Pitié-Salpêtrière Hospital, Department of Medical Liver Transplantation, F-75013 Paris, France.
| | - Nadira Delhem
- Université Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France.
- CNRS-UMR 8161, F-59000 Lille, France.
- Institut Pasteur de Lille, F-59000 Lille, France.
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Elwan N, Assal F, Elfert A, AboAli L, Soliman S, Soliman S, Elkhalawany W, Badawy R, Effat L, Sayed K, Shalaby S, Shehab M, Abdel-Hamid M, Abd-Elsalam S. Genetic Susceptibility in Family Members of Egyptian Hepatitis C Virus Infected Patients: Role of Interleukin-12 B Gene Polymorphism. Infect Disord Drug Targets 2019; 19:81-87. [PMID: 29283074 DOI: 10.2174/1871526518666171227210541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 11/23/2017] [Accepted: 12/13/2017] [Indexed: 12/11/2022]
Abstract
AIM The research was conducted to study 1188 A\C polymorphism of Interleukin (IL)-12B gene for C/C, A/C and A/A genotypes in families of Hepatitis C virus (HCV) infected patients in Egypt. METHODS Three hundreds HCV patients, 860 family members and 100 healthy subjects were studied. All family members were screened for HCV antibodies by enzyme-linked immunosorbent assay (ELISA). Positive cases were examined using Real-Time polymerase chain reaction (PCR) to confirm the presence of HCV ribonucleic acid (RNA) and detect the viral load. Molecular study of IL-12B gene was carried out on all patients, family members and controls using PCR and restriction enzyme analysis. RESULTS HCV infection was confirmed in 10.6% of family members. The distribution of IL-12B gene polymorphism in patients was 2.3%, 45.7% and 52% for C/C, A/C and A/A genotypes respectively, in infected family members was 3.3%, 41.7%, 55%, in noninfected family members was 4.5%, 43.5% and 52% for C/C, A/C and A/A genotypes respectively and in control was 5%, 36% and 59% for C/C, A/C and A/A genotypes respectively. The frequency of the C/C, A/C and A/A genotype was not significantly different between the studied groups. CONCLUSION IL-12B gene polymorphism has no role in intrafamilial susceptibility of HCV transmission. The distribution of the functional 1188 A\C polymorphism of Interleukin (IL)-12B gene for C/C, A/C and A/A genotypes was not significantly different among the studied groups.
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Affiliation(s)
- Nadia Elwan
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Fathia Assal
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Asem Elfert
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Lobna AboAli
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Shaimaa Soliman
- Department of Public Health and Community Medicine, Menoufia University, Menoufia, Egypt
| | - Samah Soliman
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Walaa Elkhalawany
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Rehab Badawy
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Laila Effat
- Departments of Medical Molecular Genetics and Cytogenetic, National Research Centre (NRC), El Behoosst, Dokki Cairo 11231, Egypt
| | - Khalda Sayed
- Departments of Medical Molecular Genetics and Cytogenetic, National Research Centre (NRC), El Behoosst, Dokki Cairo 11231, Egypt
| | - Safinaz Shalaby
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Marwa Shehab
- Departments of Medical Molecular Genetics and Cytogenetic, National Research Centre (NRC), El Behoosst, Dokki Cairo 11231, Egypt
| | - Mohamed Abdel-Hamid
- Departments of Medical Molecular Genetics and Cytogenetic, National Research Centre (NRC), El Behoosst, Dokki Cairo 11231, Egypt
| | - Sherief Abd-Elsalam
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
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