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Xu B, Chen J, Fu J, Yang R, Yang B, Huo D, Tan C, Chen H, Wang X. Meningitic Escherichia coli-Induced Interleukin-17A Facilitates Blood-Brain Barrier Disruption via Inhibiting Proteinase 3/Protease-Activated Receptor 2 Axis. Front Cell Neurosci 2022; 16:814867. [PMID: 35221923 PMCID: PMC8873187 DOI: 10.3389/fncel.2022.814867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/24/2022] [Indexed: 12/02/2022] Open
Abstract
Bacterial meningitis is a life-threatening infectious disease with high morbidity and mortality worldwide, among which meningitic Escherichia coli is a common Gram-negative pathogenic bacterium causing meningitis. It can penetrate the blood–brain barrier (BBB), invoke local inflammatory responses and consequently disrupt the integrity of the BBB. Interleukin-17A (IL-17A) is recognized as a pro-inflammatory cytokine that is released during meningitic E. coli infection. It has been reported that IL-17A is involved in several pathological tissue injuries. However, the function of IL-17A in BBB breakdown remains rarely discussed. Here, our study found that E. coli-induced IL-17A led to the degradation of tight junction proteins (TJs) and adherens junction proteins (AJs) in human brain microvascular endothelial cells (hBMECs) through inhibiting protease proteinase 3 (PRTN3)/protease-activated receptor 2 (PAR-2) axis, thus increasing the permeability of BBB. In summary, this study uncovered the involvement of IL-17A in regulating BBB integrity and proposed a novel regulatory mechanism, which could be potential therapeutic targets of E. coli meningitis.
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Affiliation(s)
- Bojie Xu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Jiaqi Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Jiyang Fu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Ruicheng Yang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Bo Yang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Dong Huo
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Chen Tan
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of the People's Republic of China, Wuhan, China.,International Research Center for Animal Disease, Ministry of Science and Technology of the People's Republic of China, Wuhan, China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of the People's Republic of China, Wuhan, China.,International Research Center for Animal Disease, Ministry of Science and Technology of the People's Republic of China, Wuhan, China
| | - Xiangru Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of the People's Republic of China, Wuhan, China.,International Research Center for Animal Disease, Ministry of Science and Technology of the People's Republic of China, Wuhan, China
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2
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Brochado Ó, Martínez I, Berenguer J, Medrano L, González-García J, Jiménez-Sousa MÁ, Carrero A, Hontañón V, Navarro J, Guardiola JM, Fernández-Rodríguez A, Resino S. HCV eradication with IFN-based therapy does not completely restore gene expression in PBMCs from HIV/HCV-coinfected patients. J Biomed Sci 2021; 28:23. [PMID: 33785040 PMCID: PMC8010945 DOI: 10.1186/s12929-021-00718-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 03/24/2021] [Indexed: 12/11/2022] Open
Abstract
Objective To evaluate the impact of hepatitis C virus (HCV) elimination via interferon (IFN)-based therapy on gene expression profiles related to the immune system in HIV/HCV-coinfected patients. Methods We conducted a prospective study in 28 HIV/HCV-coinfected patients receiving IFN-based therapy at baseline (HIV/HCV-b) and week 24 after sustained virological response (HIV/HCV-f). Twenty-seven HIV-monoinfected patients (HIV-mono) were included as a control. RNA-seq analysis was performed on peripheral blood mononuclear cells (PBMCs). Genes with a fold-change (FC) ≥ 1.5 (in either direction) and false discovery rate (FDR) ≤ 0.05 were identified as significantly differentially expressed (SDE). Results HIV/HCV-b showed six SDE genes compared to HIV-mono group, but no significantly enriched pathways were observed. For HIV/HCV-f vs. HIV/HCV-b, we found 58 SDE genes, 34 upregulated and 24 downregulated in the HIV/HCV-f group. Of these, the most overexpressed were CXCL2, PDCD6IP, ATP5B, IGSF9, RAB26, and CSRNP1, and the most downregulated were IFI44 and IFI44L. These 58 SDE genes revealed two significantly enriched pathways (FDR < 0.05), one linked to Epstein-Barr virus infection and another related to p53 signaling. For HIV/HCV-f vs. HIV-mono group, we found 44 SDE genes that revealed 31 enriched pathways (FDR < 0.05) related to inflammation, cancer/cell cycle alteration, viral and bacterial infection, and comorbidities associated with HIV/HCV-coinfection. Five genes were overrepresented in most pathways (JUN, NFKBIA, PIK3R2, CDC42, and STAT3). Conclusion HIV/HCV-coinfected patients who eradicated hepatitis C with IFN-based therapy showed profound gene expression changes after achieving sustained virological response. The altered pathways were related to inflammation and liver-related complications, such as non-alcoholic fatty liver disease and hepatocellular carcinoma, underscoring the need for active surveillance for these patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12929-021-00718-6.
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Affiliation(s)
- Óscar Brochado
- Unidad de Infección Viral E Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III (Campus Majadahonda), Carretera Majadahonda-Pozuelo, Km 2.2, 28220, MajadahondaMadrid, Spain
| | - Isidoro Martínez
- Unidad de Infección Viral E Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III (Campus Majadahonda), Carretera Majadahonda-Pozuelo, Km 2.2, 28220, MajadahondaMadrid, Spain.
| | - Juan Berenguer
- Unidad de Enfermedades Infecciosas/VIH, Hospital General Universitario "Gregorio Marañón", Madrid, Spain.,Instituto de Investigación Sanitaria del Gregorio Marañón, Madrid, Spain
| | - Luz Medrano
- Unidad de Infección Viral E Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III (Campus Majadahonda), Carretera Majadahonda-Pozuelo, Km 2.2, 28220, MajadahondaMadrid, Spain
| | - Juan González-García
- Unidad de VIH, Servicio de Medicina Interna, Hospital Universitario "La Paz", Madrid, Spain.,Instituto de Investigacion Sanitaria La Paz (IdiPAZ), Madrid, Spain
| | - María Ángeles Jiménez-Sousa
- Unidad de Infección Viral E Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III (Campus Majadahonda), Carretera Majadahonda-Pozuelo, Km 2.2, 28220, MajadahondaMadrid, Spain
| | - Ana Carrero
- Unidad de Enfermedades Infecciosas/VIH, Hospital General Universitario "Gregorio Marañón", Madrid, Spain.,Instituto de Investigación Sanitaria del Gregorio Marañón, Madrid, Spain
| | - Víctor Hontañón
- Unidad de VIH, Servicio de Medicina Interna, Hospital Universitario "La Paz", Madrid, Spain.,Instituto de Investigacion Sanitaria La Paz (IdiPAZ), Madrid, Spain
| | - Jordi Navarro
- Servicio de Enfermedades Infecciosas, Hospital Universitari Vall D'Hebron, Barcelona, Spain.,Institut de Recerca Vall D'Hebron, Barcelona, Spain
| | | | - Amanda Fernández-Rodríguez
- Unidad de Infección Viral E Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III (Campus Majadahonda), Carretera Majadahonda-Pozuelo, Km 2.2, 28220, MajadahondaMadrid, Spain
| | - Salvador Resino
- Unidad de Infección Viral E Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III (Campus Majadahonda), Carretera Majadahonda-Pozuelo, Km 2.2, 28220, MajadahondaMadrid, Spain.
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3
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The assessment of selected MiRNAs profile in HIV, HBV, HCV, HIV/HCV, HIV/HBV Co-infection and elite controllers for determination of biomarker. Microb Pathog 2020; 147:104355. [DOI: 10.1016/j.micpath.2020.104355] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/14/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023]
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4
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Hepatitis C virus modulates IgG glycosylation in HIV co-infected antiretroviral therapy suppressed individuals. AIDS 2020; 34:1461-1466. [PMID: 32675559 DOI: 10.1097/qad.0000000000002558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE Glycosylation plays a critical role in mediating several antibody (mainly immunoglobulin G; IgG) immunological functions, including antibody-dependent cell-mediated cytotoxicity (ADCC), and anti-inflammatory activities. We investigated whether IgG glycosylation and immune profile patterns are differentially modulated in mono and dual infection using samples from untreated hepatitis C virus (HCV)-infected individuals with and without co-infection with antiretroviral therapy (ART)-suppressed HIV. DESIGN IgG glycosylation, immune subsets, natural killer cell function, and liver enzymes were assessed in 14 HCV mono-infected and 27 ART-suppressed HIV/HCV co-infected participants naïve to HCV treatment. Historic IgG glycosylation data from 23 ART-suppressed chronically HIV-infected individuals were also used for comparisons. METHODS Plasma IgG glycosylation was assessed using capillary electrophoresis. Whole blood was used for immune subset characterization by flow cytometry. Peripheral blood mononuclear cells were used to measure constitutive and interferon-α-induced K562 target cell lysis. Statistical analysis was performed using R (3.5.0). RESULTS HIV/HCV had lower levels of pro-ADCC-associated nonfucosylated glycans when compared with HIV [e.g. di-sialylated A2 percentage (%): P = 0.04], and higher levels of T and myeloid cell activation/exhaustion when compared with HCV (e.g. CD3CD8CD38 %: P < 0.001). Finally, in HCV high levels of the anti-inflammatory galactosylated and sialylated glycans were associated with low plasma levels of aspartate aminotransferase (AST), low CD8 T-cell activation, and high CD8 T-cell exhaustion. CONCLUSION HCV modulates IgG glycosylation profile in HIV co-infected individuals on suppressive ART. These results could inform on the modulation of IgG glycans in other mono and dual infections.
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Papasavvas E, Kossenkov AV, Azzoni L, Zetola NM, Mackiewicz A, Ross BN, Fair M, Vadrevu S, Ramogola-Masire D, Sanne I, Firnhaber C, Montaner LJ. Gene expression profiling informs HPV cervical histopathology but not recurrence/relapse after LEEP in ART-suppressed HIV+HPV+ women. Carcinogenesis 2019; 40:225-233. [PMID: 30364933 DOI: 10.1093/carcin/bgy149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 09/28/2018] [Accepted: 10/24/2018] [Indexed: 12/30/2022] Open
Abstract
Identification of factors associated with human papillomavirus (HPV) cervical histopathology or recurrence/relapse following loop electrosurgical excision procedure (LEEP) would allow for better management of the disease. We investigated whether gene signatures could (i) associate with HPV cervical histopathology and (ii) identify women with post-LEEP disease recurrence/relapse. Gene array analysis was performed on paraffin-embedded cervical tissue-isolated RNA from two cross-sectional cohorts of antiretroviral therapy (ART)-suppressed HIV+HPV+ coinfected women: (i) 55 women in South Africa recruited into three groups: high risk (HR) (-) (n = 16) and HR (+) (n = 15) HPV without cervical histopathology and HR (+) HPV with cervical intraepithelial neoplasia (CIN) grade 1/2/3 (n = 24), (ii) 28 women in Botswana with CIN2/3 treated with LEEP 12-month prior to recruitment and presenting with (n = 13) and without (n = 15) lesion recurrence/relapse (tissue was analyzed at first LEEP). Three distinct gene expression signatures identified were able to segregate: (i) HR+ HPV and CIN1/2/3, (ii) HR HPV-free and cervical histopathology-free and (iii) HR+ HPV and cervical histopathology-free. Immune activation and neoplasia-associated genes (n = 272 genes; e.g. IL-1A, IL-8, TCAM1, POU4F1, MCM2, SMC1B, CXCL6, MMP12) were a feature of cancer precursor dysplasia within HR HPV infection. No difference in LEEP tissue gene expression was detected between women with or without recurrence/relapse. In conclusion, distinctive gene signatures were associated with presence of cervical histopathology in tissues from ART-suppressed HIV+/HPV+ coinfected women. Lack of detection of LEEP tissue gene signature able to segregate subsequent post-LEEP disease recurrence/relapse indicates additional factors independent of local gene expression as determinants of recurrence/relapse.
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Affiliation(s)
- Emmanouil Papasavvas
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Andrew V Kossenkov
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Livio Azzoni
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Nicola M Zetola
- The Botswana-UPenn Partnership, Department of Radiation Oncology, Gaborone, Botswana.,The University of Pennsylvania, Department of Radiation Oncology, Philadelphia, PA, USA
| | - Agnieszka Mackiewicz
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Brian N Ross
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Matthew Fair
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Surya Vadrevu
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | | | - Ian Sanne
- Clinical HIV Research Unit, Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Cynthia Firnhaber
- Clinical HIV Research Unit, Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,Right To Care, Johannesburg, South Africa
| | - Luis J Montaner
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
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6
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Signature molecules expressed differentially in a liver disease stage-specific manner by HIV-1 and HCV co-infection. PLoS One 2018; 13:e0202524. [PMID: 30138348 PMCID: PMC6107166 DOI: 10.1371/journal.pone.0202524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 08/03/2018] [Indexed: 12/20/2022] Open
Abstract
To elucidate HIV-1 co-infection-induced acceleration of HCV liver disease and identify stage-specific molecular signatures, we applied a new high-resolution molecular screen, the Affymetrix GeneChip Human Transcriptome Array (HTA2.0), to HCV-mono- and HIV/HCV-co-infected liver specimens from subjects with early and advanced disease. Out of 67,528 well-annotated genes, we have analyzed the functional and statistical significance of 75 and 28 genes expressed differentially between early and advanced stages of HCV mono- and HIV/HCV co-infected patient liver samples, respectively. We also evaluated the expression of 25 and 17 genes between early stages of mono- and co-infected liver tissues and between advanced stages of mono- and co-infected patient's samples, respectively. Based on our analysis of fold-change in gene expression as a function of disease stage (i.e., early vs. advanced), coupled with consideration of the known relevant functions of these genes, we focused on four candidate genes, ACSL4, GNMT, IFI27, and miR122, which are expressed stage-specifically in HCV mono- and HIV-1/HCV co-infective liver disease and are known to play a pivotal role in regulating HCV-mediated hepatocellular carcinoma (HCC). Our qRT-PCR analysis of the four genes in patient liver specimens supported the microarray data. Protein products of each gene were detected in the endoplasmic reticulum (ER) where HCV replication takes place, and the genes' expression significantly altered replicability of HCV in the subgenomic replicon harboring regulatory genes of the JFH1 strain of HCV in Huh7.5.1. With respect to three well-known transferrable HIV-1 viral elements-Env, Nef, and Tat-Nef uniquely augmented replicon expression, while Tat, but not the others, substantially modulated expression of the candidate genes in hepatocytic cells. Combinatorial expression of these cellular and viral genes in the replicon cells further altered replicon expression. Taken together, these results showed that HIV-1 viral proteins can exacerbate liver pathology in the co-infected patients by disparate molecular mechanisms-directly or indirectly dysregulating HCV replication, even if lack of association of HCV load and end-stage liver disease in hemophilic patients were reported, and modulating expression of hepatocellular genes critical for disease progression. These findings also provide major insights into development of stage-specific hepatocellular biomarkers for improved diagnosis and prognosis of HCV-mediated liver disease.
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7
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Comstock E, Kim CW, Murphy A, Emmanuel B, Zhang X, Sneller M, Poonia B, Kottilil S. Transcriptional profiling of PBMCs unravels B cell mediated immunopathogenic imprints of HCV vasculitis. PLoS One 2017; 12:e0188314. [PMID: 29228031 PMCID: PMC5724854 DOI: 10.1371/journal.pone.0188314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 11/03/2017] [Indexed: 01/22/2023] Open
Abstract
B cell depletion therapy using rituximab has been shown to be effective in achieving remission in patients with HCV-mixed cryoglobulinemic (MC) vasculitis. Previously, we have demonstrated abnormalities in peripheral immune cells involving neutrophils, chemotaxis, and innate immune activation among patients with HCV-MC vasculitis when compared to HCV patients without vasculitis. In this study, we evaluated the effect of B cell depletion therapy on transcriptional profiles of peripheral blood mononuclear cells before and after riruximab therapy, in order to unravel the pathogenic mechanism involved in HCV-MC vasculitis induced by abnormal B cell proliferation. DNA microarray analysis was performed using RNA from PBMCs from seven patients with HCV-MC vasculitis and seven normal volunteers. DNA was hybridized to Affymetrix U133A chips. After normalization, differentially expressed gene list with treatment was generated using partitional clustering. RT-PCR, flow cytometry, and enzyme immunoassay (EIA) was used to validate DNA microarray findings. Differentially expressed genes included B cells and non-B cell genes. Validation of genes using purified cell subsets demonstrated distinct effect of B cell depletion therapy on non-B cells, such as monocytes, T cells, and NK cells. Notably, B lymphocyte stimulator (BLyS) levels were persistently elevated in patients who subsequently relapsed. In conclusion, pathogenesis of HCV-MC vasculitis is mediated by abnormal proliferation of B cells, driven by BLyS, leading to significant effects on non-B cells in mediating symptomatology. Future therapeutics using a combination approach of B cell depletion and proliferation may be desired to achieve long-term remission.
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Affiliation(s)
- Emily Comstock
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, United States of America
| | - Cheol-Woo Kim
- Department of Internal Medicine, Inha University, Incheon, South Korea
| | - Alison Murphy
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, United States of America
| | - Benjamin Emmanuel
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, United States of America
| | - Xi Zhang
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, United States of America
| | - Michael Sneller
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, United States of America
| | - Bhawna Poonia
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, United States of America
| | - Shyamasundaran Kottilil
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, United States of America
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, United States of America
- * E-mail:
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8
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Papasavvas E, Azzoni L, Yin X, Liu Q, Joseph J, Mackiewicz A, Ross B, Lynn KM, Jacobson JM, Mounzer K, Kostman JR, Montaner LJ. HCV viraemia associates with NK cell activation and dysfunction in antiretroviral therapy-treated HIV/HCV-co-infected subjects. J Viral Hepat 2017; 24:865-876. [PMID: 28419653 PMCID: PMC5589504 DOI: 10.1111/jvh.12714] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 03/21/2017] [Indexed: 12/12/2022]
Abstract
The impact of hepatitis C virus (HCV) RNA levels on immune status in chronically HCV mono-infected when compared to HIV/HCV co-infected on antiretroviral therapy (ART) remains poorly understood. A total of 78 African American subjects HCV viraemic/naïve to HCV treatment (33 HCV genotype 1 mono-infected, 45 ART-treated HIV/HCV genotype 1 co-infected) were studied. Clinical and liver enzyme measurements were performed. Whole blood was analysed for immune subset changes by flow cytometry. Peripheral blood mononuclear cells (PBMC) were used for same-day constitutive and in vitro Interferon (IFN)-α-induced signal transducer and activator of transcription (STAT) phosphorylation, K562 target cell lysis and K562 target cell recognition-mediated IFN-γ production. Statistical analysis was performed using R (2.5.1) or JMP Pro 11. While both groups did not differ in the level of liver enzymes, HIV/HCV had higher T-cell activation/exhaustion, and constitutive STAT-1 phosphorylation compared to HCV. In contrast, CD4+ FoxP3+ CD25+ frequency, IFN-αR expression on NK cells, as well as constitutive and IFN-α-induced direct cytotoxicity were lower in HIV/HCV. Linear regression models further supported these results. Finally, increase in HCV viral load and CD4+ T-cell count had an opposite effect between the two groups on NK cell activity and T-cell activation, respectively. HCV viral load in ART-treated HIV/HCV co-infection was associated with greater immune activation/exhaustion and NK dysfunction than HCV viral load alone in HCV mono-infection. The more pronounced immune modulation noted in ART-treated HIV-co-infected/untreated HCV viraemic subjects may impact HCV disease progression and/or response to immunotherapy.
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Affiliation(s)
| | - L. Azzoni
- The Wistar Institute, Philadelphia, PA, USA
| | - X. Yin
- The Wistar Institute, Philadelphia, PA, USA
| | - Q. Liu
- The Wistar Institute, Philadelphia, PA, USA
| | - J. Joseph
- The Wistar Institute, Philadelphia, PA, USA
| | | | - B. Ross
- The Wistar Institute, Philadelphia, PA, USA
| | - K. M. Lynn
- Presbyterian Hospital-University of Pennsylvania hospital, Philadelphia, PA, USA
| | - J. M. Jacobson
- Temple University, Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - K. Mounzer
- Jonathan Lax Immune Disorders Treatment Center, Philadelphia Field Initiating Group for HIV-1 Trials, Philadelphia, PA, USA
| | - J. R. Kostman
- John Bell Health Center, Philadelphia Field Initiating Group for HIV-1 Trials, Philadelphia, PA, USA
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9
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Petersen T, Lee YJ, Osinusi A, Amorosa VK, Wang C, Kang M, Matining R, Zhang X, Dou D, Umbleja T, Kottilil S, Peters MG. Interferon Stimulated Gene Expression in HIV/HCV Coinfected Patients Treated with Nitazoxanide/Peginterferon-Alfa-2a and Ribavirin. AIDS Res Hum Retroviruses 2016; 32:660-7. [PMID: 26974581 DOI: 10.1089/aid.2015.0236] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
A combination of nitazoxanide (NTZ), peginterferon (PegIFN), and ribavirin (RBV) may result in higher sustained virologic response (SVR) rates in hepatitis C virus (HCV) monoinfected patients. This study evaluated the effect of NTZ on interferon-stimulated gene (ISG) expression in vitro and in vivo among HIV/HCV genotype-1 (GT-1) treatment-naive patients. The ability of NTZ to enhance host response to interferon (IFN) signaling using the HCV cell culture system was initially evaluated. Second, ISG expression in 53 patients with treatment outcomes [21 SVR and 32 nonresponders (NR)] in the ACTG A5269 trial, a phase-II study (4-week lead in of NTZ 500 mg daily followed by 48 weeks of NTZ, PegIFN, and weight-based RBV), was assessed. The relative expression of 48 ISGs in peripheral blood mononuclear cells (PBMCs) was measured at baseline, week 4, and week 8 of treatment in a blinded manner. In vitro NTZ produced a direct and additive antiviral effect with IFN-alfa, with pretreatment of NTZ resulting in maximal HCV suppression. NTZ augmented IFN-mediated ISG induction in PBMCs from relapsers and SVRs (p < 0.05), but not NR. In ACTG A5269, baseline expression of most ISGs was similar between NR and SVR. NTZ minimally induced 17 genes in NR and 13 genes in SVR after 4 weeks of therapy. However, after initiation of PegIFN and RBV, ISG induction was predominantly observed in the SVR group and not NR group. NTZ treatment facilitates IFN-induced suppression of HCV replication. Inability to achieve SVR with IFN-based therapy in this clinical trial is associated with diminished ISG response to therapy that is refractory to NTZ.
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Affiliation(s)
- Tess Petersen
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Yu-Jin Lee
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Anu Osinusi
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland
- Gilead Sciences Inc., Foster City, California
| | - Valerianna K. Amorosa
- Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania
- University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Crystal Wang
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Minhee Kang
- Harvard School of Public Health, Boston, Massachusetts
| | - Roy Matining
- Harvard School of Public Health, Boston, Massachusetts
| | - Xiao Zhang
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Diana Dou
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Triin Umbleja
- Harvard School of Public Health, Boston, Massachusetts
| | - Shyam Kottilil
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Marion G. Peters
- University of California at San Francisco, San Francisco, California
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Basnayake SK, Easterbrook PJ. Wide variation in estimates of global prevalence and burden of chronic hepatitis B and C infection cited in published literature. J Viral Hepat 2016; 23:545-59. [PMID: 27028545 DOI: 10.1111/jvh.12519] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 01/14/2016] [Indexed: 12/15/2022]
Abstract
To evaluate the extent of heterogeneity in global estimates of chronic hepatitis B (HBV) and C (HCV) cited in the published literature, we undertook a systematic review of the published literature. We identified articles from 2010 to 2014 that had cited global estimates for at least one of ten indicators [prevalence and numbers infected with HBV, HCV, HIV-HBV or HIV-HCV co-infection, and mortality (number of deaths annually) for HBV and HCV]. Overall, 488 articles were retrieved: 239 articles cited a HBV-related global estimate [prevalence (n = 12), number infected (n = 193) and number of annual deaths (n = 82)]; 280 articles had HCV-related global estimates [prevalence (n = 86), number infected (n = 203) and number of annual deaths (n = 31)]; 31 had estimates on both HBV and HCV; 54 had HIV-HBV co-infection estimates [prevalence (n = 42) and number co-infected (n = 12)]; and 68 had estimates for HIV-HCV co-infection [prevalence (n = 40) and number co-infected (n = 28)]. There was considerable heterogeneity in the estimates cited and also a lack of consistency in the terminology used. Although 40% of 488 articles cited WHO as the source of the estimate, many of these were from outdated or secondary sources. Our findings highlight the importance of clear and consistent communication from WHO and other global health agencies on current consensus estimates of hepatitis B and C burden and prevalence, the need for standardisation in their citation, and for regular updates.
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Affiliation(s)
| | - P J Easterbrook
- Global Hepatitis Programme, HIV Department, World Health Organization, Geneva, Switzerland
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11
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Papasavvas E, Surrey LF, Glencross DK, Azzoni L, Joseph J, Omar T, Feldman MD, Williamson AL, Siminya M, Swarts A, Yin X, Liu Q, Firnhaber C, Montaner LJ. High-risk oncogenic HPV genotype infection associates with increased immune activation and T cell exhaustion in ART-suppressed HIV-1-infected women. Oncoimmunology 2016; 5:e1128612. [PMID: 27467943 DOI: 10.1080/2162402x.2015.1128612] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 12/01/2015] [Accepted: 12/02/2015] [Indexed: 10/22/2022] Open
Abstract
Persistence of human papillomavirus (HPV) and cervical disease in the context of HIV co-infection can be influenced by introduction of antiretroviral therapy (ART) and sustained immune activation despite ART. We conducted a cross-sectional study in order to evaluate immune activation/exhaustion in ART-suppressed HIV(+) women with or without high-risk (HR) HPV-related cervical intraepithelial neoplasia (CIN). 55 South African women were recruited in three groups: HR (-) (n = 16) and HR (+) (n = 15) HPV with negative cervical histopathology, and HR (+) HPV with CIN grade 1/2/3 (n = 24). Sampling included endocervical brushing (HPV DNA genotyping), Pap smear (cytology), colposcopic punch biopsy (histopathology, histochemical evaluation of immune cells), and peripheral blood (clinical assessment, flow cytometry-based immune subset characterization). Statistics were done using R2.5.1. Irrespective of the presence of CIN, HR (+) HPV women had higher circulating levels of T cells expressing markers of activation/exhaustion (CD38, PD1, CTLA-4, BTLA, CD160), Tregs, and myeloid subsets expressing corresponding ligands (PDL1, PDL2, CD86, CD40, HVEM) than HR (-) HPV women. A decrease in circulating NK cells was associated with CIN grade. CD4(+) T cell count associated negatively with T cell exhaustion and expression of negative regulators on myeloid cells. Women with CIN when compared to HR (-) HPV women, had higher cervical cell density in stroma and epithelium for CD4(+), CD68(+), and CD11c(+) cells, and only in stroma for CD8(+) cells. We conclude that in ART-suppressed HIV-infected women with HPV co-infection the levels of T and myeloid cell activation/exhaustion are associated with the presence of HR HPV genotypes.
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Affiliation(s)
| | - Lea F Surrey
- Division of Molecular Pathology, Hospital of the University of Pennsylvania , Philadelphia, PA, USA
| | - Deborah K Glencross
- Faculty of Health Science Department of Molecular Medicine and Haematology, University of Witwatersrand, Johannesburg, South Africa; National Health Laboratory Service, Johannesburg, South Africa
| | | | | | - Tanvier Omar
- National Health Laboratory Service, Johannesburg, South Africa; Faculty of Health Science Department of Anatomical Pathology, University of Witwatersrand, Johannesburg, South Africa
| | - Michael D Feldman
- Division of Surgical Pathology, Hospital of the University of Pennsylvania , Philadelphia, PA, USA
| | - Anna-Lise Williamson
- Institute of Infectious Disease and Molecular Medicine and Department of Pathology, University of Cape Town, Cape Town, South Africa; National Health Laboratory Service, Cape Town, South Africa
| | - Maureen Siminya
- Faculty of Health Science Department of Internal Medicine, University of Witwatersrand, Johannesburg, South Africa; Right to Care, Johannesburg, South Africa
| | - Avril Swarts
- Faculty of Health Science Department of Internal Medicine, University of Witwatersrand, Johannesburg, South Africa; Right to Care, Johannesburg, South Africa
| | | | - Qin Liu
- The Wistar Institute , Philadelphia, PA, USA
| | - Cynthia Firnhaber
- Faculty of Health Science Department of Internal Medicine, University of Witwatersrand, Johannesburg, South Africa; Right to Care, Johannesburg, South Africa
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12
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Katsounas A, Frank AC, Lempicki RA, Polis MA, Asmuth DM, Kottilil S. Differential Specificity of Interferon-alpha Inducible Gene Expression in Association with Human Immunodeficiency Virus and Hepatitis C Virus Levels and Declines in vivo. JOURNAL OF AIDS & CLINICAL RESEARCH 2015; 6:1000410. [PMID: 26052470 PMCID: PMC4456029 DOI: 10.4172/2155-6113.1000410] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE This study was aimed to correlate in vivo interferon (IFN) inducible gene (IFIG) expression and IFIG induction with viral-load (VL) and VL-kinetics of Human-Immunodeficiency-Virus (HIV) or Hepatitis-C-Virus (HCV) in HIV-positive patients treated with pegylated IFN-alpha-2a (PegIFNα). METHODS HIV mono-infected patients (N=8) and HIV/HCV co-infected patients (N=23, without HIV-viremia) were treated with PegIFNα (180 μg/week) for 12 and 48 weeks, respectively. Blood sampling for monitoring IFIG expression occurred at day_0 and week_3, _6 and _12 for HIV mono-infected patients vs. only at day_0 and week_48 for HIV/HCV co-infected subjects. IFIG expression (N=20) was measured in peripheral blood mononuclear cells by bDNA-assay. VL levels/changes in plasma were analyzed for correlation with IFIG expression/induction at/between selected time points. Overall, P<0.05 was considered significant. RESULTS None of the 20 IFIG expression profiles at day_0 correlated significantly with HIV-VL at day_0. Expression at day_0 of 3 IFIG (APOBEC3G/OAS1/OAS2) correlated significantly (r>+0.42/P<0.05) with HCV-VL at day_0. The strongest antiviral effect [measured as median viral decline per week: ΔVL/week (log10)] occurred in common against HIV and HCV between day_0 and week_3 during 12 weeks of continuous PegIFNα treatment in both cohorts. Expression at day_0 of 1 IFIG (APOBEC3A) correlated significantly (r<-0.71/P<0.05) with HIV-ΔVL/week (log10) from day_0 to week_3. No significance was reached in correlations between expression values of 20 IFIG at day_0 and HCV-ΔVL/week (log10) from day_0 to week_3. No significant correlation was detected between IFIG expression changes (ΔIFIG=induction) from day_0 to week_3 and HIV-ΔVL/week (log10) from day_0 to week_3. Interestingly, induction of 1 IFIG (ΔISG20) from day_0 to week_48 was significantly associated (P<0.05) with permanent HCV clearance. CONCLUSION This study demonstrates the differential specificity of PegIFNα mediated molecular actions by dissecting the kinetics of IFIG expression and induction, suggesting multiple, possibly non-overlapping mechanisms for antiviral effects against HCV and HIV.
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Affiliation(s)
- Antonios Katsounas
- Department of Gastroenterology and Hepatology, University Hospital Essen, Hufelandstrasse 55, 45147 Essen, Germany
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 10 Center Dr., Bethesda, MD 20892, USA
| | - Astrid C Frank
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 10 Center Dr., Bethesda, MD 20892, USA
| | - Richard A Lempicki
- Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Michael A Polis
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 10 Center Dr., Bethesda, MD 20892, USA
| | - David M Asmuth
- Division of Infectious and Immunologic Diseases, UC Davis, Medical Center 4150 V Street, PSSB G500 Sacramento, CA 95817, USA
| | - Shyam Kottilil
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 10 Center Dr., Bethesda, MD 20892, USA
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13
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Robinson MW, Swann R, Sigruener A, Barclay ST, Mills PR, McLauchlan J, Patel AH. Elevated interferon-stimulated gene transcription in peripheral blood mononuclear cells occurs in patients infected with genotype 1 but not genotype 3 hepatitis C virus. J Viral Hepat 2015; 22:384-90. [PMID: 25200131 PMCID: PMC4409080 DOI: 10.1111/jvh.12310] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hepatitis C virus (HCV) can be classified into seven distinct genotypes that are associated with differing pathologies and respond differently to antiviral therapy. In the UK, genotype 1 and 3 are present in approximately equal proportions. Chronic infection with HCV genotype 3 is associated with increased liver steatosis and reduced peripheral total cholesterol levels, which potentially influences peripheral immune responses. To understand these differences, we investigated host gene transcription in peripheral blood mononuclear cells by microarray and quantitative PCR in patients with genotype 1 (n = 22) or genotype 3 infection (n = 22) and matched healthy controls (n = 15). Enrichment of genes involved in immune response and inflammatory pathways were present in patients infected with HCV genotype 1; however, no differences in genes involved in lipid or cholesterol metabolism were detected. This genotype-specific induction of genes is unrelated to IL28B genotype or previous treatment failure. Our data support the hypothesis that genotype 1 infection drives a skewed Type I interferon response and provides a foundation for future investigations into the host-pathogen interactions that underlie the genotype-specific clinical outcomes of chronic HCV infection.
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Affiliation(s)
- M W Robinson
- MRC – University of Glasgow Centre for Virus ResearchGlasgow, UK,School of Biochemistry and Immunology, Trinity College DublinDublin, Ireland
| | - R Swann
- MRC – University of Glasgow Centre for Virus ResearchGlasgow, UK,Gartnavel General Hospital, NHS Greater Glasgow and ClydeGlasgow, UK
| | - A Sigruener
- Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Medical CenterRegensburg, Germany
| | - S T Barclay
- Glasgow Royal Infirmary, NHS Greater Glasgow and ClydeGlasgow, UK
| | - P R Mills
- Gartnavel General Hospital, NHS Greater Glasgow and ClydeGlasgow, UK
| | - J McLauchlan
- MRC – University of Glasgow Centre for Virus ResearchGlasgow, UK,
Correspondence: Arvind H. Patel, MRC-University of Glasgow Centre for Virus Research, Glasgow, G11 5JR, UK., E-mail: , John Mclauchlan, MRC-University of Glasgow Centre for Virus Research, Glasgow G11 5JR, UK., E-mail:
| | - A H Patel
- MRC – University of Glasgow Centre for Virus ResearchGlasgow, UK,
Correspondence: Arvind H. Patel, MRC-University of Glasgow Centre for Virus Research, Glasgow, G11 5JR, UK., E-mail: , John Mclauchlan, MRC-University of Glasgow Centre for Virus Research, Glasgow G11 5JR, UK., E-mail:
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14
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Ascierto ML, Bozzano F, Bedognetti D, Marras F, Schechterly C, Matsuura K, Picciotto A, Marenco S, Zhao Y, DeGiorgi V, Sommariva M, Moretta L, Wang E, Alter HJ, Marincola FM, De Maria A. Inherent transcriptional signatures of NK cells are associated with response to IFNα + rivabirin therapy in patients with Hepatitis C Virus. J Transl Med 2015; 13:77. [PMID: 25849716 PMCID: PMC4353456 DOI: 10.1186/s12967-015-0428-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 02/04/2015] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Differences in the expression of Natural Killer cell receptors have been reported to reflect divergent clinical courses in patients with chronic infections or tumors. However, extensive molecular characterization at the transcriptional level to support this view is lacking. The aim of this work was to characterize baseline differences in purified NK cell transcriptional activity stratified by response to treatment with PEG-IFNα/RBV in patients chronically infected with HCV. METHODS To this end we here studied by flow cytometer and gene expression profile, phenotypic and transcriptional characteristics of purified NK cells in patients chronically infected with HCV genotype-1 virus who were subsequently treated with PEG-IFNα/RBV. Results were further correlated with divergent clinical response obtained after treatment. RESULTS The pre-treatment transcriptional patterns of purified NK cells from patients subsequently undergoing a sustained virologic response (SVR) clearly segregated from those of non-responder (NR) patients. A set of 476 transcripts, including molecules involved in RNA processing, ubiquitination pathways as well as HLA class II signalling were differently expressed among divergent patients. In addition, treatment outcome was associated with differences in surface expression of NKp30 and NKG2D. A complex relationship was observed that suggested for extensive post-transcriptional editing. Only a small number of the NK cell transcripts identified were correlated with chronic HCV infection/replication indicating that inherent transcriptional activity prevails over environment effects such as viral infection. CONCLUSIONS Collectively, inherent/genetic modulation of NK cell transcription is involved in setting the path to divergent treatment outcomes and could become useful to therapeutic advantage.
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Affiliation(s)
- Maria Libera Ascierto
- />Department of Health Sciences, University of Genova, Genova, Italy
- />Department of Oncology, Johns Hopkins Medicine, CRB II, Room 506, 1550 Orleans Street, Baltimore, MD 21231 USA
| | - Federica Bozzano
- />Department of Health Sciences, University of Genova, Genova, Italy
- />Department of Experimental Medicine, University of Genova, Genova, Italy
| | | | | | - Cathy Schechterly
- />Department of Transfusion Medicine, Clinical, National Institutes of Health, Bethesda, MD USA
| | - Kentaro Matsuura
- />Department of Transfusion Medicine, Clinical, National Institutes of Health, Bethesda, MD USA
| | - Antonino Picciotto
- />IRCCS Az.Osp.Univ. San Martino-IST Istituto Nazionale Ricerca sul Cancro, Genoa, Italy
| | - Simona Marenco
- />IRCCS Az.Osp.Univ. San Martino-IST Istituto Nazionale Ricerca sul Cancro, Genoa, Italy
| | - Yingdong Zhao
- />Biometric Research Branch, Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, MD USA
| | - Valeria DeGiorgi
- />Department of Transfusion Medicine, Clinical, National Institutes of Health, Bethesda, MD USA
| | - Michele Sommariva
- />Department of Transfusion Medicine, Clinical, National Institutes of Health, Bethesda, MD USA
| | | | - Ena Wang
- />Sidra Medical and Research Centre, Doha, Qatar
| | - Harvey J Alter
- />Department of Transfusion Medicine, Clinical, National Institutes of Health, Bethesda, MD USA
| | | | - Andrea De Maria
- />Department of Health Sciences, University of Genova, Genova, Italy
- />Department of Experimental Medicine, University of Genova, Genova, Italy
- />IRCCS Az.Osp.Univ. San Martino-IST Istituto Nazionale Ricerca sul Cancro, Genoa, Italy
- />Universita’ degli Studi di Genova, Largo R Benzi 10, 16132 Genova, Italy
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15
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Wu JQ, Saksena MM, Soriano V, Vispo E, Saksena NK. Differential regulation of cytotoxicity pathway discriminating between HIV, HCV mono- and co-infection identified by transcriptome profiling of PBMCs. Virol J 2015; 12:4. [PMID: 25623235 PMCID: PMC4312599 DOI: 10.1186/s12985-014-0236-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 12/30/2014] [Indexed: 01/01/2023] Open
Abstract
Background Despite the easy accessibility and diagnostic utility of PBMCs and their potential to show distinct expression patterns associated with the accelerated disease progression in HIV/HCV co-infection, there has not been a systematic study focusing on the global dysregulations of the biological pathways in PBMCs from HIV, HCV mono- and co-infected individuals. This study aimed at identifying the transcriptome distinctions of PBMCs between these patient groups. Methods Genome-wide transcriptomes of PBMCs from 10 HIV/HCV co-infected patients, 7 HIV+ patients, 5 HCV+ patients, and 5 HIV/HCV sero-negative healthy controls were analyzed using Illumina microarray. Pairwise comparisons were performed to identify differentially expressed genes (DEGs), followed by gene set enrichment analysis (GSEA) to detect the global dysregulations of the biological pathways between HIV, HCV mono- and co-infection. Results Forty-one, 262, and 44 DEGs with fold change > 1.5 and FDR (false discovery rate) <0.05 for the comparisons of HCV versus co-infection, HIV versus co-infection, and HIV versus HCV were identified, respectively. Significantly altered pathways (FDR < 0.05), featured by those involved in immune system, signaling transduction, and cell cycle, were detected. Notably, the differential regulation of cytotoxicity pathway discriminated between HIV, HCV mono- and co-infection (up-regulated in the former versus the latter group: co-infection versus HIV or HCV, HIV versus HCV; FDR <0.001 ~ 0.019). Conversely, the cytokine-cytokine receptor interaction pathway was down-regulated in co-infection versus either HCV (FDR = 0.003) or HIV (FDR = 0.028). For the comparison of HIV versus HCV, the cell cycle (FDR = 0.016) and WNT signaling (FDR = 0.006) pathways were up- and down-regulated in HIV, respectively. Conclusions Our study is the first to identify the differential regulation of cytotoxicity pathway discriminating between HIV, HCV mono- and co-infection, which may reflect the distinct patterns of virus-host cell interactions underlying disease progression. Further inspection of cytotoxicity pathway has pinned down to the expression of the KIR genes to be associated with specific patterns of particular virus-host interactions. Between HIV and HCV, the altered cell cycle and WNT signaling pathways may suggest the different impact of HIV and HCV on cell proliferation and differentiation. Electronic supplementary material The online version of this article (doi:10.1186/s12985-014-0236-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jing Qin Wu
- School of Biomedical Sciences and Pharmacy, Faculty of Health, The University of Newcastle, University Drive, Callaghan, Newcastle, NSW, 2308, Australia.
| | - Monica Miranda Saksena
- Herpes Virus Pathogenesis Lab, Center for Virus Research, Westmead Millennium Institute, University of Sydney, Westmead, Sydney, NSW, 2145, Australia.
| | - Vincent Soriano
- Department of Infectious Diseases, Hospital Carlos III, Sinesio Delgado 10, 28029, Madrid, Spain.
| | - Eugenia Vispo
- Department of Infectious Diseases, Hospital Carlos III, Sinesio Delgado 10, 28029, Madrid, Spain.
| | - Nitin K Saksena
- Retroviral Genetics Division, Center for Virus Research, Westmead Millennium Institute & Westmead Hospital, University of Sydney, Westmead, Sydney, NSW, 2145, Australia.
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16
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microRNAs: novel players in hepatitis C virus infection. Clin Res Hepatol Gastroenterol 2014; 38:664-75. [PMID: 24875730 DOI: 10.1016/j.clinre.2014.04.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 03/23/2014] [Accepted: 04/15/2014] [Indexed: 02/04/2023]
Abstract
Hepatitis C virus (HCV) is a single-stranded, positive-sense RNA virus. About 70% of patients exposed to HCV develop a chronic infection, which can lead to scarring of the liver and ultimately to cirrhosis, liver failure, and hepatocellular carcinoma. For the past decade, the standard therapy for HCV infection has been a combination of interferon-α and ribavirin. In recent years, direct-acting antiviral agents, boceprevir and telaprevir, have been added to the therapeutic regimen and considerably improve the cure rates for HCV infection. However, the treatment continues to cause substantial side effects and is associated with drug resistance due to frequent mutations in the HCV RNA genome resulting from the low fidelity of its RNA polymerase. MicroRNAs (miRNAs) are a class of small, non-coding RNAs approximately 22 nucleotides in length. They are derived from cellular or viral transcripts and bind to their target mRNAs in a sequence-specific manner, resulting in either mRNA cleavage or translational repression and subsequent modulation of the expression of the majority of the protein-coding genes. miRNAs have been implicated in regulating multiple aspects of HCV life cycles and certain miRNAs serve as essential mediators for the interferon-based antiviral therapy. Furthermore, recent studies have documented the potential values of miRNAs as novel therapeutic targets against hepatitis C infectivity.
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17
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Fernandez-Botran R, Joshi-Barve S, Ghare S, Barve S, Young M, Plankey M, Bordon J. Systemic cytokine and interferon responsiveness Patterns in HIV and HCV mono and co-infections. J Interferon Cytokine Res 2014; 34:885-93. [PMID: 24955730 PMCID: PMC4217006 DOI: 10.1089/jir.2014.0006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 04/21/2014] [Indexed: 01/21/2023] Open
Abstract
The role of host response-related factors in the fast progression of liver disease in individuals co-infected with HIV and HCV viruses remains poorly understood. This study compared patterns of cytokines, caspase-1 activation, endotoxin exposure in plasma as well as interferon signaling in peripheral blood mononuclear cells from HIV/HCV co-infected (HIV(+)/HCV(+)), HCV mono-infected (HIV(-)/HCV(+)), HIV mono-infected (HIV(+)/HCV(-)) female patients and HIV- and HCV-uninfected women (HIV(-)/HCV(-)) who had enrolled in the Women's Interagency HIV Study (WIHS). HIV(+)/HCV(+) women had higher plasma levels of pro-inflammatory cytokines as well as caspase-1 compared with other groups. Both HIV(+)/HCV(+) and HIV(+)/HCV(-) women had significantly higher sCD14 levels compared with other groups. Peripheral blood mononuclear cells from HCV mono-infected patients had reduced levels of phosphorylation of STAT1 compared with other groups as well as lower basal levels of expression of the IFN-stimulated genes, OAS1, ISG15, and USP18 (UBP43). Basal expression of USP18, a functional antagonist of ISG15, as well as USP18/ISG15 ratios were increased in the HIV(+)/HCV(+) group compared with HIV(-)/HCV(+) and HIV(+)/HCV(-) groups. A more pronounced systemic inflammatory profile as well as increased expression ratios of USP18 to ISG15 may contribute to the more rapid progression of liver disease in HIV(+)/HCV(+) individuals.
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Affiliation(s)
- Rafael Fernandez-Botran
- Department of Pathology and Laboratory Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Swati Joshi-Barve
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Smita Ghare
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Shirish Barve
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Mary Young
- Department of Medicine, Georgetown Medical Center, Washington, District of Columbia
| | - Michael Plankey
- Department of Medicine, Georgetown Medical Center, Washington, District of Columbia
| | - Jose Bordon
- Section of Infectious Diseases, Providence Hospital, Washington, District of Columbia
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Odigie M, Osinusi A, Barrett L, Townsend K, Wang H, Suffredini AF, Masur H, Polis MA, Kottilil S. Inteleukin-23 promotes interferon-α responsiveness in hepatitis C virus/HIV-coinfected patients. AIDS Res Hum Retroviruses 2014; 30:775-82. [PMID: 24856902 DOI: 10.1089/aid.2014.0003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Patients coinfected with HIV and hepatitis C virus (HCV) have poor to modest rates of response with interferon-based therapies, which remain a backbone of the treatment in HIV/HCV-coinfected patients. The mechanisms responsible for poor responsiveness to interferon are not well described. In this study a targeted proteomic analysis of plasma from 42 patients infected with both HIV and HCV and undergoing therapy for HCV with peginterferon and ribavirin was performed. Higher baseline plasma levels of interleukin (IL)-23 were associated with sustained virologic response. Further investigation of how IL-23 facilitates interferon (IFN) responsiveness, as evidenced by a >2-fold increase in most interferon-stimulated genes (ISGs), revealed that IL-23 indirectly enhances IFN signaling in peripheral blood mononuclear cells and HCV continuous culture system by preventing the down-regulation of the IFNAR2 receptor after exposure to IFN-α. These findings suggest a unique role of the IL-23 pathway in enhancing host response to type I interferons, thereby facilitating eradication of HCV. Low levels of IL-23 present in plasma of nonresponders may reflect an impaired immune state that in the case of HIV/HCV-coinfected subjects could potentially lead to disruption of TH17 CD4(+) T cells. This study suggests a major role for HIV-associated immune dysregulation present in HIV-infected subjects that subsequently determines the overall responsiveness to exogenous interferon-α-based HCV therapy.
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Affiliation(s)
- Madeline Odigie
- Immunopathogenesis Section, Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Anu Osinusi
- Immunopathogenesis Section, Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
- Institute of Human Virology, Division of Infectious Diseases, University of Maryland School of Medicine, Baltimore, Maryland
| | - Lisa Barrett
- Immunopathogenesis Section, Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Kerry Townsend
- Immunopathogenesis Section, Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Honghui Wang
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Anthony F. Suffredini
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Henry Masur
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Michael A. Polis
- Immunopathogenesis Section, Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Shyam Kottilil
- Immunopathogenesis Section, Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
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19
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Katsounas A, Rasimas JJ, Schlaak JF, Lempicki RA, Rosenstein DL, Kottilil S. Interferon stimulated exonuclease gene 20 kDa links psychiatric events to distinct hepatitis C virus responses in human immunodeficiency virus positive patients. J Med Virol 2014; 86:1323-31. [PMID: 24782267 PMCID: PMC4114765 DOI: 10.1002/jmv.23956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2014] [Indexed: 01/02/2023]
Abstract
Hepatitis C Virus (HCV) infection occurs frequently in patients with preexisting mental illness. Treatment for chronic hepatitis C using interferon formulations often increases risk for neuro-psychiatric symptoms. Pegylated-Interferon-α (PegIFN-α) remains crucial for attaining sustained virologic response (SVR); however, PegIFN-α based treatment is associated with psychiatric adverse effects, which require dose reduction and/or interruption. This study's main objective was to identify genes induced by PegIFN-α and expressed in the central nervous system and immune system, which could mediate the development of psychiatric toxicity in association with antiviral outcome. Using peripheral blood mononuclear cells from Human Immunodeficiency Virus (HIV)/HCV co-infected donors (N = 28), DNA microarray analysis was performed and 21 differentially regulated genes were identified in patients with psychiatric toxicity versus those without. Using these 21 expression profiles a two-way-ANOVA was performed to select genes based on antiviral outcome and occurrence of neuro-psychiatric adverse events. Microarray analysis demonstrated that Interferon-stimulated-exonuclease-gene 20 kDa (ISG20) and Interferon-alpha-inducible-protein 27 (IFI27) were the most regulated genes (P < 0.05) between three groups that were built by combining antiviral outcome and neuro-psychiatric toxicity. Validation by bDNA assay confirmed that ISG20 expression levels were significantly associated with these outcomes (P < 0.035). Baseline levels and induction of ISG20 correlated independently with no occurrence of psychiatric adverse events and non-response to therapy (P < 0.001). Among the 21 genes that were associated with psychiatric adverse events and 20 Interferon-inducible genes (IFIGs) used as controls, only ISG20 expression was able to link PegIFN-α related neuro-psychiatric toxicity to distinct HCV-responses in patients co-infected with HIV and HCV in vivo.
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Affiliation(s)
- Antonios Katsounas
- Department of Gastroenterology and Hepatology, University Hospital Essen, Hufelandstrasse 55, 45147 Essen, Germany
| | - Joseph J. Rasimas
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
| | - Joerg F. Schlaak
- Department of Gastroenterology and Hepatology, University Hospital Essen, Hufelandstrasse 55, 45147 Essen, Germany
| | - Richard A. Lempicki
- Laboratory of Immunopathogenesis and Bioinformatics, SAIC-Frederick, Inc, National Cancer Institute at Frederick, Frederick, MD 21702, USA
| | - Donald L. Rosenstein
- Department of Psychiatry, University of North Carolina at Chapel Hill, NC 27599-7305, USA
| | - Shyam Kottilil
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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Sidharthan S, Kim CW, Murphy AA, Zhang X, Yang J, Lempicki RA, Sneller MC, Kottilil S. Hepatitis C-associated mixed cryoglobulinemic vasculitis induces differential gene expression in peripheral mononuclear cells. Front Immunol 2014; 5:248. [PMID: 24904592 PMCID: PMC4034044 DOI: 10.3389/fimmu.2014.00248] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 05/12/2014] [Indexed: 11/13/2022] Open
Abstract
This study examines the distinct gene expression profile of peripheral blood mononuclear cells from patients with chronic hepatitis C infection and mixed cryoglobulinemic (MC) vasculitis. Our DNA microarray analysis indicates that hepatitis C virus (HCV)-associated MC vasculitis is characterized by compromised neutrophil function, impaired chemotaxis, and increased interferon-stimulated gene (ISG) expression, contributing to overall MC pathogenesis and end-organ damage. Increased ISG expression is suggestive of an enhanced endogenous interferon gene signature. PBMC depletion assays demonstrate that this increased expression is likely due to an activation of monocytes and not a direct result of B cell expansion. Notably, this monocyte activation of ISG expression in HCV-associated MC vasculitis suggests a poor predictor status of interferon-based treatment. Further analysis of PBMC gene expression profiles before and after in vivo B cell depletion therapy is critical to completely understanding the mechanisms of MC vasculitis pathogenesis.
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Affiliation(s)
- Sreetha Sidharthan
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Department of Health and Human Services , Bethesda, MD , USA
| | - Cheol-Woo Kim
- Department of Internal Medicine, Inha University , Incheon , South Korea
| | - Alison A Murphy
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Department of Health and Human Services , Bethesda, MD , USA
| | - Xiaozhen Zhang
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Department of Health and Human Services , Bethesda, MD , USA
| | - Jun Yang
- Clinical Research Directorate/Clinical Monitoring Research Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research , Frederick, MD , USA
| | - Richard A Lempicki
- Clinical Research Directorate/Clinical Monitoring Research Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research , Frederick, MD , USA
| | - Michael C Sneller
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Department of Health and Human Services , Bethesda, MD , USA
| | - Shyam Kottilil
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Department of Health and Human Services , Bethesda, MD , USA
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Dichamp I, Abbas W, Kumar A, Di Martino V, Herbein G. Cellular activation and intracellular HCV load in peripheral blood monocytes isolated from HCV monoinfected and HIV-HCV coinfected patients. PLoS One 2014; 9:e96907. [PMID: 24809719 PMCID: PMC4014560 DOI: 10.1371/journal.pone.0096907] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 04/13/2014] [Indexed: 12/13/2022] Open
Abstract
Background During HCV infection, the activation status of peripheral blood monocytes and its impact on HCV replication are poorly understood. We hypothesized that a modified activation of peripheral blood monocytes in HIV-HCV coinfected compared to HCV monoinfected patients may contribute to different monocytes reservoirs of HCV replication. Methods We performed a case-control analysis involving HCV-infected patients with and without HIV coinfection. In peripheral blood mononuclear cells (PBMCs), peripheral blood lymphocytes (PBLs) and peripheral blood monocytes isolated from HCV monoinfected and HIV-HCV coinfected patients, intracellular HCV load and a marker of cellular activation, nuclear factor-kappaB (NF-κB) activation, were quantified using intracellular detection of HCV-core protein and electrophoretic mobility shift assay, respectively. Results Intracellular HCV loads were higher in monocytes isolated from HIV-HCV coinfected patients than in those of monoinfected patients. Among PBMCs isolated from HIV-HCV coinfected patients, intracellular HCV loads were higher in monocytes compared to PBLs. Cellular activation as measured by NF-κB activation was higher in monocytes isolated from HIV-HCV coinfected patients than in those of monoinfected patients. Conclusions Our results reveal the peripheral blood monocytes as an important extrahepatic reservoir for HCV in HIV-HCV coinfected patients and indicate a potential association between the activation state of monocytes and the size of the HCV reservoir in HIV-HCV coinfected patients.
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Affiliation(s)
- Isabelle Dichamp
- Pathogens and Inflammation Department, UPRES EA4266, SFR FED 4234, University of Franche-Comté, Besancon, France
- Department of Virology, CHRU Besançon, Besançon, France
| | - Wasim Abbas
- Pathogens and Inflammation Department, UPRES EA4266, SFR FED 4234, University of Franche-Comté, Besancon, France
- Department of Virology, CHRU Besançon, Besançon, France
| | - Amit Kumar
- Pathogens and Inflammation Department, UPRES EA4266, SFR FED 4234, University of Franche-Comté, Besancon, France
- Department of Virology, CHRU Besançon, Besançon, France
| | - Vincent Di Martino
- Pathogens and Inflammation Department, UPRES EA4266, SFR FED 4234, University of Franche-Comté, Besancon, France
- Department of Hepatology, CHRU Besançon, Besançon, France
| | - Georges Herbein
- Pathogens and Inflammation Department, UPRES EA4266, SFR FED 4234, University of Franche-Comté, Besancon, France
- Department of Virology, CHRU Besançon, Besançon, France
- * E-mail:
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Osinusi A, Bon D, Nelson A, Lee YJ, Poonia S, Shivakumar B, Cai SY, Wood B, Haagmans B, Lempicki R, Herrmann E, Sneller M, Polis M, Masur H, Kottilil S. Comparative efficacy, pharmacokinetic, pharmacodynamic activity, and interferon stimulated gene expression of different interferon formulations in HIV/HCV genotype-1 infected patients. J Med Virol 2014; 86:177-85. [PMID: 24166150 DOI: 10.1002/jmv.23773] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2013] [Indexed: 12/14/2022]
Abstract
The effect of different formulations of interferon on therapeutic response in patients coinfected with HIV and HCV is unclear. In this study, the safety, tolerability, viral kinetics (VK) modeling and host responses among HIV/HCV coinfected patients treated with pegylated-IFN or albinterferon alfa-2b (AlbIFN) with weight-based ribavirin were compared. Three trials treated 57 HIV/HCV coinfected genotype-1 patients with PegIFN alfa-2b (1.5 µg/kg/week) (n = 30), PegIFN alfa-2a (180 µg/week) (n = 10), and AlbIFN (900 µg/q2week) (n = 17) in combination with weight-based ribavirin (RBV). HCV RNA, safety labs, and interferon stimulated gene expression (ISG) was evaluated. Adverse events were documented at all study visits. HCV viral kinetics using a full pharmacokinetic/pharmacodynamic model was also evaluated. Baseline patient characteristics were similar across the three studies. All three formulations exhibited comparable safety and tolerability profiles and efficacy. VK/PK/PD parameters for all three studies as measured by mean efficiency and rate of infected cell loss were similar between the three groups. Host responses (ISG expression and immune activation markers) were similar among the three groups. All three regimens induced significant ISG at week 4 (P < 0.05) and ISG expression strongly correlated with therapeutic response (r = 0.65; P < 0.01). In summary, a comprehensive analysis of responses to three different interferon formulations in HIV/HCV coinfected patients demonstrated similar effects. Notably, interferon-based therapy results in a blunted host response followed by modest antiviral effect in HIV/HCV coinfected patients. This suggests that future treatment options that do not rely on host immune responses such as direct antiviral agents would be particularly beneficial in these difficult to treat patients.
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Affiliation(s)
- Anu Osinusi
- LIR, NIAID, NIH, Maryland; Clinical Research Directorate/CMRP, SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland
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23
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Genome-wide mRNA and miRNA analysis of peripheral blood mononuclear cells (PBMC) reveals different miRNAs regulating HIV/HCV co-infection. Virology 2014; 450-451:336-49. [PMID: 24503097 DOI: 10.1016/j.virol.2013.12.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 10/24/2013] [Accepted: 12/19/2013] [Indexed: 12/12/2022]
Abstract
Co-infection with human immunodeficiency virus (HIV) and hepatitis C virus (HCV) is common due to shared transmission routes. The genomic basis of HIV/HCV co-infection and its regulation by microRNA (miRNA) is unknown. Therefore, our objective was to investigate genome-wide mRNA expression and its regulation by miRNA in primary PBMCs derived from 27 patients (5 HCV - mono-infected, 5 HIV-mono-infected, 12 HCV/HIV co-infected, and 5 healthy controls). This revealed 27 miRNAs and 476 mRNAs as differentially expressed (DE) in HCV/HIV co-infection when compared to controls (adj p<0.05). Our study shows the first evidence of miRNAs specific for co-infection, several of which are correlated with key gene targets demonstrating functional relationships to pathways in cancer, immune-function, and metabolism. Notable was the up regulation of HCV-specific miR-122 in co-infection (FC>50, p=4.02E-06), which may have clinical/biological implications.
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24
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Ruiz-Extremera Á, Muñoz-Gámez JA, Abril-Molina A, Salmerón-Ruiz MA, Muñoz-de-Rueda P, Pavón-Castillero EJ, Quiles-Pérez R, Carazo Á, Gila A, Jimenez-Ruiz SM, Casado J, Martín AB, Sanjuán-Núñez L, Ocete-Hita E, Viota JL, León J, Salmerón J. Variation of transaminases, HCV-RNA levels and Th1/Th2 cytokine production during the post-partum period in pregnant women with chronic hepatitis C. PLoS One 2013; 8:e75613. [PMID: 24130726 PMCID: PMC3794969 DOI: 10.1371/journal.pone.0075613] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Accepted: 08/15/2013] [Indexed: 12/15/2022] Open
Abstract
This study analyses the evolution of liver disease in women with chronic hepatitis C during the third trimester of pregnancy and the post-partum period, as a natural model of immune modulation and reconstitution. Of the 122 mothers recruited to this study, 89 were HCV-RNA+ve/HIV-ve and 33 were HCV-RNA-ve/HIV-ve/HCVantibody+ve and all were tested during the third trimester of pregnancy, at delivery and post-delivery. The HCV-RNA+ve mothers were categorized as either Type-A (66%), with an increase in ALT levels in the post-partum period (>40 U/L; P<0.001) or as Type-B (34%), with no variation in ALT values. The Type-A mothers also presented a significant decrease in serum HCV-RNA levels in the post-delivery period (P<0.001) and this event was concomitant with an increase in Th1 cytokine levels (INFγ, P = 0.04; IL12, P = 0.01 and IL2, P = 0.01). On the other hand, the Type-B mothers and the HCV-RNA-ve women presented no variations in either of these parameters. However, they did present higher Th1 cytokine levels in the partum period (INFγ and IL2, P<0.05) than both the Type-A and the HCV-RNA-ve women. Cytokine levels at the moment of delivery do not constitute a risk factor associated with HCV vertical transmission. It is concluded that differences in the ALT and HCV-RNA values observed in HCV-RNA+ve women in the postpartum period might be due to different ratios of Th1 cytokine production. In the Type-B women, the high partum levels of Th1 cytokines and the absence of post-partum variation in ALT and HCV-RNA levels may be related to permanent Th1 cytokine stimulation.
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Affiliation(s)
- Ángeles Ruiz-Extremera
- Paediatric Unit, San Cecilio University Hospital, Granada, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Ciberehd, Granada, Spain
- Paediatric Unit, Granada University, Granada, Spain
| | | | | | | | - Paloma Muñoz-de-Rueda
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Ciberehd, Granada, Spain
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
| | | | - Rosa Quiles-Pérez
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Ciberehd, Granada, Spain
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
| | - Ángel Carazo
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
| | - Ana Gila
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Ciberehd, Granada, Spain
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
| | - Sergio Manuel Jimenez-Ruiz
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
- Medicine Department, Granada University, Granada, Spain
| | - Jorge Casado
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
| | - Ana Belén Martín
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
| | - Laura Sanjuán-Núñez
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
- Medicine Department, Granada University, Granada, Spain
| | - Esther Ocete-Hita
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Ciberehd, Granada, Spain
- Paediatric Unit, Granada University, Granada, Spain
- Paediatric Unit, Virgen de las Nieves Hospital, Granada, Spain
| | - Julián López Viota
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
| | - Josefa León
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Ciberehd, Granada, Spain
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
| | - Javier Salmerón
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Ciberehd, Granada, Spain
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, Granada, Spain
- Medicine Department, Granada University, Granada, Spain
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Abstract
Around 33 million people worldwide are living with Human Immunodeficiency Virus (HIV) infection, and approximately 20-30% of HIV-infected individuals are also infected with Hepatitis C virus (HCV). The main form of HCV transmission is via the blood borne route; high rates of co-infection are found in intravenous drug users with HCV prevalence rates as high as 90%. Introduction of effective antiretroviral therapy (ART) has led to a significant decline in HIV-related morbidity, but at the same time the incidence of HCV related liver disease is increasing in the co-infected population. Meta analysis has revealed that individuals who are co-infected with HIV/HCV harbor three times greater risk of progression to liver disease than those infected with HCV alone. Increased risk of progression to Acquired Immunodeficiency Syndrome (AIDS) and AIDS-related deaths is shown among the co-infected patients by some studies, suggesting that HCV infection may accelerate the clinical course of HIV infection. HCV may also affect the incidence of liver toxicity associated with ART, affecting the management of HIV infection. There is a lack of optimal therapeutic approaches to treat HCV infection in HIV co-infected patients. This review discusses recent literature pertaining HIV/HCV co-infection, in addition to providing a snapshot of impact of co-infection on human genome at the level of gene expression and its regulation by microRNAs (miRNAs).
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Affiliation(s)
- Priyanka Gupta
- Retroviral Genetics Division, Centre for Virus Research, Westmead Millennium Institute , Sydney, Australia
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26
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Katsounas A, Hubbard JJ, Wang CH, Zhang X, Dou D, Shivakumar B, Winter S, Schlaak JF, Lempicki RA, Masur H, Polis M, Kottilil S, Osinusi A. High interferon-stimulated gene ISG-15 expression affects HCV treatment outcome in patients co-infected with HIV and HCV. J Med Virol 2013; 85:959-63. [DOI: 10.1002/jmv.23576] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2013] [Indexed: 02/01/2023]
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Parikh N, Nonnemacher MR, Pirrone V, Block T, Mehta A, Wigdahl B. Substance abuse, HIV-1 and hepatitis. Curr HIV Res 2013; 10:557-71. [PMID: 22973853 DOI: 10.2174/157016212803306023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 07/16/2012] [Accepted: 09/05/2012] [Indexed: 02/06/2023]
Abstract
During the course of human immunodeficiency virus type 1 (HIV-1) disease, the virus has been shown to effectively escape the immune response with the subsequent establishment of latent viral reservoirs in specific cell populations within the peripheral blood (PB) and associated lymphoid tissues, bone marrow (BM), brain, and potentially other end organs. HIV-1, along with hepatitis B and C viruses (HBV and HCV), are known to share similar routes of transmission, including intravenous drug use, blood transfusions, sexual intercourse, and perinatal exposure. Substance abuse, including the use of opioids and cocaine, is a significant risk factor for exposure to HIV-1 and the development of acquired immune deficiency syndrome, as well as HBV and HCV exposure, infection, and disease. Thus, coinfection with HIV-1 and HBV or HCV is common and may be impacted by chronic substance abuse during the course of disease. HIV- 1 impacts the natural course of HBV and HCV infection by accelerating the progression of HBV/HCV-associated liver disease toward end-stage cirrhosis and quantitative depletion of the CD4+ T-cell compartment. HBV or HCV coinfection with HIV-1 is also associated with increased mortality when compared to either infection alone. This review focuses on the impact of substance abuse and coinfection with HBV and HCV in the PB, BM, and brain on the HIV-1 pathogenic process as it relates to viral pathogenesis, disease progression, and the associated immune response during the course of this complex interplay. The impact of HIV-1 and substance abuse on hepatitis virus-induced disease is also a focal point.
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Affiliation(s)
- Nirzari Parikh
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 19102, USA
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Thibault PA, Wilson JA. Targeting miRNAs to treat Hepatitis C Virus infections and liver pathology: Inhibiting the virus and altering the host. Pharmacol Res 2013; 75:48-59. [PMID: 23541631 DOI: 10.1016/j.phrs.2013.03.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 03/10/2013] [Accepted: 03/11/2013] [Indexed: 02/06/2023]
Abstract
Hepatitis C Virus (HCV) infection-induced liver disease is a growing problem worldwide, and is the primary cause of liver failure requiring liver transplantation in North America. Improved therapeutic strategies are required to control and possibly eradicate HCV infections, and to modulate HCV-induced liver disease. Cellular microRNAs anneal to and regulate mRNA translation and stability and form a regulatory network that modulates virtually every cellular process. Thus, miRNAs are promising cellular targets for therapeutic intervention for an array of diseases including cancer, metabolic diseases, and virus infections. In this review we outline the features of miRNA regulation and how miRNAs may be targeted in strategies to modulate HCV replication and pathogenesis. In particular, we highlight miR-122, a miRNA that directly modulates the HCV life cycle using an unusual mechanism. This miRNA is very important since miR-122 antagonists dramatically reduced HCV titres in HCV-infected chimpanzees and humans and currently represents the most likely candidate to be the first miRNA-based therapy licensed for use. However, we also discuss other miRNAs that directly or indirectly alter HCV replication efficiency, liver cirrhosis, fibrosis and the development of hepatocellular carcinoma (HCC). We also discuss a few miRNAs that might be targets to treat HCV in cases of HCV/HIV co-infection. Finally, we review methods to deliver miRNA antagonists and mimics to the liver. In the future, it may be possible to design and deliver specific combinations of miRNA antagonists and mimics to cure HCV infection or to limit liver pathogenesis.
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Affiliation(s)
- Patricia A Thibault
- Department of Microbiology and Immunology and Vaccine and Infectious Disease Organization, University of Saskatchewan, Rm 2D01, HSc Bldg, 107 Wiggins Rd, Saskatoon, SK S7N 5E5, Canada
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29
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Sultana C, Erscoiu SM, Grancea C, Ceausu E, Ruta S. Predictors of Chronic Hepatitis C Evolution in HIV Co-Infected Patients From Romania. HEPATITIS MONTHLY 2013; 13:e8611. [PMID: 23613686 PMCID: PMC3632003 DOI: 10.5812/hepatmon.8611] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 12/11/2012] [Accepted: 12/31/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND Due to a recent alarming increase in the number of HIV-HCV co-infected patients in Romania. OBJECTIVES A cross sectional study was conducted to assess the baseline predictors of liver disease evolution. PATIENTS AND METHODS 83 HIV-HCV co-infected patients, untreated for HCV infection, were evaluated for viral replication, liver fibrosis (estimated by a noninvasive marker - FIB4), and plasma levels of IP-10 (interferon-gamma inducible protein 10) - a cytokine associated with an unfavorable outcome of HCV infection. RESULTS The median value for HCV viral load was high (6.3 log10 IU/mL), 98.8% of the patients were infected with HCV genotype 1. Although 53% of the patients received antiretroviral therapy (cART), only 31.8% of these achieved undetectable HIV levels. HCV viral load was significantly higher in patients with AIDS (6.4 vs. 6.1 log10IU/mL; P = 0.04), and in those naïve for cART (6.5 vs. 5.9 log10 IU/mL; P = 0.04). Severe fibrosis was directly correlated with immunosupression (56% vs. 17.4%, P = 0.03), HCV replication (6.1 vs. 4.9 log10IU/mL P = 0.008), and IP-10 median values (312 vs. 139 pg/ml, P=0.008). A serum IP-10 level higher than 400 pg/mL was significantly associated with FIB-4 median values (4.09 vs. 1.7, P = 0.004), HCV viral load (6.4 vs. 6.1 log10 IU/mL, P = 0.02) and ALT level (206.8 vs. 112.4 IU/L, P = 0.05). CONCLUSIONS An important part of the HIV-HCV co-infected patients had negative baseline predictors for the evolution of HCV infection; their therapeutical management must be conducted with special attention towards adherence and potential overlapping drug toxicities. High concentrations of plasma IP-10 are reliable markers for the severity of liver disease.
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Affiliation(s)
- Camelia Sultana
- Department of Virology, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- Emergent Disease Department, Stefan S. Nicolau Institute of Virology, Bucharest, Romania
| | - Simona Manuela Erscoiu
- Infectious Disease Department, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- Infectious Disease Department, Victor Babes Infectious and Tropical Diseases Hospital, Bucharest, Romania
| | - Camelia Grancea
- Emergent Disease Department, Stefan S. Nicolau Institute of Virology, Bucharest, Romania
| | - Emanoil Ceausu
- Infectious Disease Department, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- Infectious Disease Department, Victor Babes Infectious and Tropical Diseases Hospital, Bucharest, Romania
| | - Simona Ruta
- Department of Virology, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- Emergent Disease Department, Stefan S. Nicolau Institute of Virology, Bucharest, Romania
- Corresponding author: Simona Ruta, Emergent Disease Department, Stefan S Nicolau Institute of Virology, 285, sos. Mihai Bravu, 030304, Bucharest, Romania. Tel.: +40-213242590, Fax: +40-213242590, E-mail:
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30
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Rempel H, Sun B, Calosing C, Abadjian L, Monto A, Pulliam L. Monocyte activation in HIV/HCV coinfection correlates with cognitive impairment. PLoS One 2013; 8:e55776. [PMID: 23437063 PMCID: PMC3578833 DOI: 10.1371/journal.pone.0055776] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Accepted: 01/03/2013] [Indexed: 11/19/2022] Open
Abstract
Coinfection with human immunodeficiency virus (HIV) and hepatitis C virus (HCV) challenges the immune system with two viruses that elicit distinct immune responses. Chronic immune activation is a hallmark of HIV infection and an accurate indicator of disease progression. Suppressing HIV viremia by antiretroviral therapy (ART) effectively prolongs life and significantly improves immune function. HIV/HCV coinfected individuals have peripheral immune activation despite effective ART control of HIV viral load. Here we examined freshly isolated CD14 monocytes for gene expression using high-density cDNA microarrays and analyzed T cell subsets, CD4 and CD8, by flow cytometry to characterize immune activation in monoinfected HCV and HIV, and HIV-suppressed coinfected subjects. To determine the impact of coinfection on cognition, subjects were evaluated in 7 domains for neuropsychological performance, which were summarized as a global deficit score (GDS). Monocyte gene expression analysis in HIV-suppressed coinfected subjects identified 43 genes that were elevated greater than 2.5 fold. Correlative analysis of subjects' GDS and gene expression found eight genes with significance after adjusting for multiple comparisons. Correlative expression of six genes was confirmed by qPCR, five of which were categorized as type 1 IFN response genes. Global deficit scores were not related to plasma lipopolysaccharide levels. In the T cell compartment, coinfection significantly increased expression of activation markers CD38 and HLADR on both CD4 and CD8 T cells but did not correlate with GDS. These findings indicate that coinfection is associated with a type 1 IFN monocyte activation profile which was further found to correlate with cognitive impairment, even in subjects with controlled HIV infection. HIV-suppressed coinfected subjects with controlled HIV viral load experiencing immune activation could benefit significantly from successful anti-HCV therapy and may be considered as preferential candidates.
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Affiliation(s)
- Hans Rempel
- Department of Laboratory Medicine, Veterans Affairs Medical Center, San Francisco, California, United States of America
| | - Bing Sun
- Department of Laboratory Medicine, Veterans Affairs Medical Center, San Francisco, California, United States of America
| | - Cyrus Calosing
- Department of Laboratory Medicine, Veterans Affairs Medical Center, San Francisco, California, United States of America
| | - Linda Abadjian
- Department of Mental Health, Veterans Affairs Medical Center, San Francisco, California, United States of America
| | - Alexander Monto
- Department of Medicine, Veterans Affairs Medical Center San Francisco, California, United States of America
- University of California San Francisco, San Francisco, California, United States of America
| | - Lynn Pulliam
- Department of Laboratory Medicine, Veterans Affairs Medical Center, San Francisco, California, United States of America
- University of California San Francisco, San Francisco, California, United States of America
- * E-mail:
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31
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Kohli A, Zhang X, Yang J, Russell RS, Donnelly RP, Sheikh F, Sherman A, Young H, Imamichi T, Lempicki RA, Masur H, Kottilil S. Distinct and overlapping genomic profiles and antiviral effects of Interferon-λ and -α on HCV-infected and noninfected hepatoma cells. J Viral Hepat 2012; 19:843-53. [PMID: 23121362 PMCID: PMC3511888 DOI: 10.1111/j.1365-2893.2012.01610.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Recently, several SNPs in the region of the IL28B (IFN-λ) gene have been associated with spontaneous clearance of hepatitis C virus (HCV) and enhanced cure rates for IFN-alfa-based therapies, suggesting a potential correlation between IFN-λ and the ability to clear HCV. To understand the mechanism of IFN-λ's as compared to IFN-α's antiviral activity, we performed a comprehensive analysis of their anti-HCV effects, whole genome transcriptome profiling with validation, and signalling of IFN-α and IFN-λ using J6/JFH-1 and Huh7.5 cells in vitro. IFN-λ and IFN-α exhibited comparable anti-HCV activity and gene expression profiles in Huh7.5 cells. While the majority of genes induced by IFN-α and IFN-λ were similar, IFN-λ exhibits profound, but delayed kinetics of IFN-stimulated genes (ISG) induction, while IFN-α induced more rapid induction of ISGs. Furthermore, the increased induction of ISG expression by IFN-λ correlated with up-regulation of IFN-λ receptor (IL-28RA) expression and more prolonged activation of the Jak-STAT signalling pathway. The findings from our comparative analysis of IFN-α and IFN-λ in HCV-infected and noninfected cells support the clinical use of IFN-λ as a potential alternative to IFN-α in the treatment of chronic hepatitis C.
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Affiliation(s)
- A Kohli
- Laboratory of Immunoregulation, NIAID, NIH, Bethesda, MD 20892, USA.
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Rusconi S. Immunological nonresponse to antiretroviral drugs in HIV infection. Future Virol 2012. [DOI: 10.2217/fvl.12.99] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Stefano Rusconi
- Dipartimento di Scienze Biomediche e Cliniche (DIBIC) ”Luigi Sacco”, Divisione Clinicizzata di Malattie Infettive, Università degli Studi di Milano; Italy
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Abstract
MicroRNAs (miRNAs) can exert a profound effect on Hepatitis C virus (HCV) replication. The interaction of HCV with the highly liver-enriched miRNA, miR-122 represents one such unique example of viruses having evolved mechanism(s) to usurp the host miRNA machinery to support viral life cycle. Furthermore, HCV infection can also trigger changes in the cellular miRNA profile, which may ultimately contribute to the outcome of viral infection. Accumulating knowledge on HCV-host miRNA interactions has ultimately influenced the design of therapeutic interventions against chronic HCV infection. The importance of microRNA modulation in Human Immunodeficiency Virus (HIV-1) replication has been reported, albeit only in the context of HIV-1 mono-infection. The development of HCV infection is dramatically influenced during co-infection with HIV-1. Here, we review the current knowledge on miRNAs in HCV mono-infection. In addition, we discuss the potential role of some miRNAs, identified from the analyses of public data, in HCV/HIV-1 co-infection.
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Naggie S, Osinusi A, Katsounas A, Lempicki R, Herrmann E, Thompson AJ, Clark PJ, Patel K, Muir AJ, McHutchison JG, Schlaak JF, Trippler M, Shivakumar B, Masur H, Polis MA, Kottilil S. Dysregulation of innate immunity in hepatitis C virus genotype 1 IL28B-unfavorable genotype patients: impaired viral kinetics and therapeutic response. Hepatology 2012; 56:444-54. [PMID: 22331604 PMCID: PMC3361636 DOI: 10.1002/hep.25647] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Accepted: 01/28/2012] [Indexed: 12/11/2022]
Abstract
UNLABELLED Recent studies have shown that a single-nucleotide polymorphism upstream of the interleukin-28B (IL28B) gene plays a major role in predicting therapeutic response in hepatitis C virus (HCV)-infected patients treated with pegylated interferon (PEG-IFN)/ribavirin. We sought to investigate the mechanism of the IL28B polymorphism, specifically as it relates to early HCV viral kinetics, IFN pharmacokinetics, IFN pharmacodynamics, and gene expression profiles. Two prospective cohorts (human immunodeficiency virus [HIV]/HCV-coinfected and HCV-monoinfected) completing treatment with IFN/ribavirin were enrolled. Patients were genotyped at the polymorphic site rs12979860. In the HIV/HCV cohort, frequent serum sampling was completed for HCV RNA and IFN levels. DNA microarray of peripheral blood mononuclear cells and individual expression of IFN-stimulated genes (ISGs) were quantified on IFN therapy. The IL28B-favorable (CC) genotype was associated with improved therapeutic response compared with unfavorable (CT or TT) genotypes. Patients with a favorable genotype had greater first- and second-phase viral kinetics (P = 0.004 and P = 0.036, respectively), IFN maximum antiviral efficiency (P = 0.007) and infected cell death loss (P = 0.009) compared with unfavorable genotypes. Functional annotation analysis of DNA microarray data was consistent with depressed innate immune function, particularly of natural killer cells, from patients with unfavorable genotypes (P <0.004). Induction of innate immunity genes was also lower in unfavorable genotypes. ISG expression at baseline and induction with IFN was independent of IL28B genotype. CONCLUSION Carriers of the IL28B-favorable genotype were more likely to have superior innate immune response to IFN therapy compared with unfavorable genotypes, suggesting that the unfavorable genotype has aberrant baseline induction of innate immune response pathways resulting in impaired virologic response. IL28B genotype is associated with more rapid viral kinetics and improved treatment response outcomes independent of ISG expression.
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Affiliation(s)
| | - Anu Osinusi
- LIR, NIAID, NIH, MD USA
- SAIC-Frederick Inc, Frederick, MD, USA
| | | | | | - Eva Herrmann
- IBMM, Johann Wolfgang Goethe University Frankfurt, CA, USA
| | | | - Paul J Clark
- Duke Clinical Research Institute, Durham, NC, USA
| | - Keyur Patel
- Duke Clinical Research Institute, Durham, NC, USA
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Rasmussen AL, Wang IM, Shuhart MC, Proll SC, He Y, Cristescu R, Roberts C, Carter VS, Williams CM, Diamond DL, Bryan JT, Ulrich R, Korth MJ, Thomassen LV, Katze MG. Chronic immune activation is a distinguishing feature of liver and PBMC gene signatures from HCV/HIV coinfected patients and may contribute to hepatic fibrogenesis. Virology 2012; 430:43-52. [PMID: 22608059 DOI: 10.1016/j.virol.2012.04.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 04/06/2012] [Accepted: 04/17/2012] [Indexed: 02/06/2023]
Abstract
Hepatitis C virus/human immunodeficiency virus (HCV/HIV) coinfected patients demonstrate accelerated progression to severe liver injury in comparison to HCV monoinfected patients, although the underlying mechanisms are unclear owing to infection of separate tissue compartments with two distinct viral pathogens. Microarray analysis of paired liver biopsy and peripheral blood mononuclear cell (PBMC) specimens from HCV/HIV coinfected and HCV monoinfected patients identified a gene expression signature associated with increased inflammation and immune activation that was present only in liver and PBMC samples from coinfected patients. We also identified in these samples liver- and PBMC-specific signatures enriched with fibrogenic/hepatic stellate activation and proinflammatory genes, respectively. Finally, Bayesian networks were constructed by assimilating these data with existing data from liver and PBMC samples from other cohorts, augmenting enrichment of biologically important pathways and further indicating that chronic immune activation in HCV/HIV coinfection may exacerbate liver disease progression in coinfected patients.
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Affiliation(s)
- Angela L Rasmussen
- Department of Microbiology, University of Washington, Box 358070, Seattle, WA 98195, USA
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Hubbard JJ, Greenwell-Wild T, Barrett L, Yang J, Lempicki RA, Wahl SM, Asmuth DM, Murphy RL, Pollard RB, Kottilil S. Host gene expression changes correlating with anti-HIV-1 effects in human subjects after treatment with peginterferon Alfa-2a. J Infect Dis 2012; 205:1443-7. [PMID: 22454462 PMCID: PMC3324397 DOI: 10.1093/infdis/jis211] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Accepted: 10/31/2011] [Indexed: 12/11/2022] Open
Abstract
We investigated whether interferon-inducible genes (IFIGs) with known anti-human immunodeficiency virus (HIV) activity in vitro were associated with in vivo virological response in HIV infection. Nine untreated HIV-1-infected volunteers were treated for 12 weeks with peginterferon alfa-2a. A subset of IFIGs (23 of 47) increased compared with baseline through 6 weeks beyond therapy, and 10 of the 23 IFIGs significantly inversely correlated (r = -0.7; P < .05) with virological response. The strength of peginterferon alfa-2a-induced IFIG response significantly correlated with declines in HIV load during treatment (r(2) = 0.87, p = .003). This study links HIV virological response to a specific IFIG subset, a potential prognostic indicator in peginterferon alfa-2a-treated patients with HIV infection.
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Affiliation(s)
- Jonathan J. Hubbard
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, and
| | - Teresa Greenwell-Wild
- Oral Infection and Immunity Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, and
| | - Lisa Barrett
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, and
| | - Jun Yang
- SAIC-Frederick Inc, Frederick, Maryland
| | | | - Sharon M. Wahl
- Oral Infection and Immunity Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, and
| | | | | | | | - Shyam Kottilil
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, and
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Sikk K, Kõks S, Soomets U, Schalkwyk LC, Fernandes C, Haldre S, Aquilonius SM, Taba P. Peripheral blood RNA expression profiling in illicit methcathinone users reveals effect on immune system. Front Genet 2012; 2:42. [PMID: 22303338 PMCID: PMC3268596 DOI: 10.3389/fgene.2011.00042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 06/22/2011] [Indexed: 02/05/2023] Open
Abstract
Methcathinone (ephedrone) is relatively easily accessible for abuse. Its users develop an extrapyramidal syndrome and it is not known if this is caused by methcathinone itself, by side-ingredients (manganese), or both. In the present study we aimed to clarify molecular mechanisms underlying this condition. We used microarrays to analyze whole-genome gene expression patterns of peripheral blood from 20 methcathinone users and 20 matched controls. Gene expression profile data were analyzed by Bayesian modeling and functional annotation. Of 28,869 genes on the microarrays, 326 showed statistically significant differential expression with FDR adjusted p-values below 0.05. Quantitative real-time PCR confirmed differential expression for the most of the genes selected for validation. Functional annotation and network analysis indicated activation of a gene network that included immunological disease, cellular movement, and cardiovascular disease functions (enrichment score 42). As HIV and HCV infections were confounding factors, we performed additional stratification of subjects. A similar functional activation of the “immunological disease” category was evident when we compared subjects according to injection status (past versus current users, balanced for HIV and HCV infection). However, this difference was not large therefore the major effect was related to the HIV status of the subjects. Mn–methcathinone abusers have blood RNA expression patterns that mostly reflect their HIV and HCV infections.
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Affiliation(s)
- Katrin Sikk
- Department of Neurology and Neurosurgery, University of Tartu Tartu, Estonia
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38
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Twice-weekly pegylated interferon-α-2a and ribavirin results in superior viral kinetics in HIV/hepatitis C virus co-infected patients compared to standard therapy. AIDS 2011; 25:1179-87. [PMID: 21593619 DOI: 10.1097/qad.0b013e3283471d53] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Hepatitis C virus (HCV)/HIV co-infected patients have more rapid progression of liver fibrosis and only modest cure rates (sustained virologic responses, SVRs) when compared to HCV monoinfected patients. METHOD We compared the virologic responses of either twice-weekly peginterferon-α-2a 180 μg/week (for 4 weeks, followed by weekly dosing) or weekly peginterferon-α-2a 180 μg/week, and weight-based ribavirin (1-1.2 g/day), among HIV/HCV co-infected genotype-1 individuals. RESULTS Patients receiving the investigational dosing had lower levels of HCV RNA at all time points after initiation of therapy. More patients on this arm achieved clinically relevant early virological responses at weeks 1, 2, 4, 12, and 24. The enhanced early virologic response observed with the investigational arm was associated with a higher induction of interferon-stimulated genes. This early double dose regimen also resulted in a rapid normalization of liver enzymes. Twice-weekly peginterferon-α-2a was associated with more frequent early virological responses with similar safety profiles when compared with standard therapy. CONCLUSION Our results, when confirmed in larger randomized clinical trials, may provide a novel therapeutic approach to improve SVR among HIV/HCV co-infected patients, especially African-American patients.
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Frank AC, Zhang X, Katsounas A, Bharucha JP, Kottilil S, Imamichi T. Interleukin-27, an anti-HIV-1 cytokine, inhibits replication of hepatitis C virus. J Interferon Cytokine Res 2010; 30:427-31. [PMID: 20235668 DOI: 10.1089/jir.2009.0093] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Interleukin (IL)-27 is a member of IL-12 family cytokine. We have previously reported that IL-27 inhibits human immunodeficiency virus type-1 (HIV-1) replication in CD4(+) T cells and monocyte-derived macrophages, even though IL-12 enhances HIV-1 replication in primary CD4(+) T cells. Further study demonstrates that IL-27 induces antiviral genes including RNA-dependent protein kinase, oligoadenylate synthetase, and myxovirus protein in the same manner as interferon (IFN)-alpha. Neutralization assay using anti-IFN antibodies, real-time RT-PCR, and enzyme-linked immunosorbent assay demonstrated that IL-27 induces the antiviral genes without the induction of IFNs. IFN-alpha has been administered to hepatitis C virus (HCV)-infected patients as well as HCV/HIV-1 co-infected patients. Despite the improved immunotherapy, some patients are still failed to respond to the treatment. Since IL-27 induces IFN-alpha-like responses including the induction of antiviral genes, it was speculated that IL-27 may impact the replication of HCV. In this study, we evaluated the role of IL-27 on HCV replication using Huh7.5, an HCV permissive cell line. IL-27 induces STAT-1 and -3 in the cell line, and dose-dependently inhibited HCV. These data suggest that IL-27 may play a role in the development of a novel immunotherapeutic strategy for HCV and HCV/HIV co-infection.
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Affiliation(s)
- Astrid C Frank
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
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Hepatitis C virus (HCV) evades NKG2D-dependent NK cell responses through NS5A-mediated imbalance of inflammatory cytokines. PLoS Pathog 2010; 6:e1001184. [PMID: 21085608 PMCID: PMC2978723 DOI: 10.1371/journal.ppat.1001184] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2010] [Accepted: 10/07/2010] [Indexed: 02/06/2023] Open
Abstract
Understanding how hepatitis C virus (HCV) induces and circumvents the host's natural killer (NK) cell-mediated immunity is of critical importance in efforts to design effective therapeutics. We report here the decreased expression of the NKG2D activating receptor as a novel strategy adopted by HCV to evade NK-cell mediated responses. We show that chronic HCV infection is associated with expression of ligands for NKG2D, the MHC class I-related Chain (MIC) molecules, on hepatocytes. However, NKG2D expression is downmodulated on circulating NK cells, and consequently NK cell-mediated cytotoxic capacity and interferon-γ production are impaired. Using an endotoxin-free recombinant NS5A protein, we show that NS5A stimulation of monocytes through Toll-like Receptor 4 (TLR4) promotes p38- and PI3 kinase-dependent IL-10 production, while inhibiting IL-12 production. In turn, IL-10 triggers secretion of TGFβ which downmodulates NKG2D expression on NK cells, leading to their impaired effector functions. Moreover, culture supernatants of HCV JFH1 replicating Huh-7.5.1 cells reproduce the effect of recombinant NS5A on NKG2D downmodulation. Exogenous IL-15 can antagonize the TGFβ effect and restore normal NKG2D expression on NK cells. We conclude that NKG2D-dependent NK cell functions are modulated during chronic HCV infection, and demonstrate that this alteration can be prevented by exogenous IL-15, which could represent a meaningful adjuvant for therapeutic intervention.
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Singer M. Pathogen-pathogen interaction: a syndemic model of complex biosocial processes in disease. Virulence 2010; 1:10-8. [PMID: 21178409 PMCID: PMC3080196 DOI: 10.4161/viru.1.1.9933] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 08/24/2009] [Accepted: 08/27/2009] [Indexed: 11/19/2022] Open
Abstract
There is growing awareness of the health implications of fact that infectious agents often do not act independently; rather their disease potential is mediated in diverse and significant ways by their relationships with other pathogens. Pathogen-pathogen interaction (PPI), for example, impacts various virulence factors in human infection. Although still in its infancy, the study of PPI, a form of epidemiological synergism, is emerging as an important arena of new research and new understanding in health and clinical care. The aims of this paper are to: 1) draw attention to the role of PPI in human disease patterns; 2) present the syndemics model as a biosocial approach for examining the nature, pathways, contexts, and health implications of PPI; and 3) suggest the utility of this approach to PPI. Toward these ends, this paper (a) reviews three of case examples of alternative PPIs, (b) describes the development and key concepts and components of the syndemics model with specific reference to interacting infectious agents, (c) contextualizes this discussion with a brief review of broader syndemics disease processes (not necessarily involving infections disease), and (d) comments on the research, treatment and prevention implications of syndemic interaction among pathogens.
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Affiliation(s)
- Merrill Singer
- University of Connecticut, Center for Health, Intervention and Prevention, Storrs, CT, USA.
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