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Kakugawa T, Mimura Y, Mimura-Kimura Y, Doi K, Ohteru Y, Kakugawa H, Oishi K, Kakugawa M, Hirano T, Matsunaga K. Kinetics of pro- and anti-inflammatory spike-specific cellular immune responses in long-term care facility residents after COVID-19 mRNA primary and booster vaccination: a prospective longitudinal study in Japan. Immun Ageing 2024; 21:41. [PMID: 38909235 PMCID: PMC11193299 DOI: 10.1186/s12979-024-00444-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 06/05/2024] [Indexed: 06/24/2024]
Abstract
BACKGROUND The magnitude and durability of cell-mediated immunity in older and severely frail individuals following coronavirus disease 2019 (COVID-19) vaccination remain unclear. A controlled immune response could be the key to preventing severe COVID-19; however, it is uncertain whether vaccination induces an anti-inflammatory cellular immune response. To address these issues, a 48-week-long prospective longitudinal study was conducted. A total of 106 infection-naive participants (57 long-term care facility [LTCF] residents [median age; 89.0 years], 28 outpatients [median age; 72.0 years], and 21 healthcare workers [median age; 51.0 years]) provided peripheral blood mononuclear cell (PBMC) samples for the assessment of spike-specific PBMC responses before primary vaccination, 24 weeks after primary vaccination, and three months after booster vaccination. Cellular immune responses to severe acute respiratory syndrome coronavirus 2 spike protein were examined by measuring interferon (IFN)-γ, tumor necrosis factor (TNF), interleukin (IL)-2, IL-4, IL-6, and IL-10 levels secreted from the spike protein peptide-stimulated PBMCs of participants. RESULTS LTCF residents exhibited significantly lower IFN-γ, TNF, IL-2, and IL-6 levels than healthcare workers after the primary vaccination. Booster vaccination increased IL-2 and IL-6 levels in LTCF residents comparable to those in healthcare workers, whereas IFN-γ and TNF levels in LTCF residents remained significantly lower than those in healthcare workers. IL-10 levels were not significantly different from the initial values after primary vaccination but increased significantly after booster vaccination in all subgroups. Multivariate analysis showed that age was negatively associated with IFN-γ, TNF, IL-2, and IL-6 levels but not with IL-10 levels. The levels of pro-inflammatory cytokines, including IFN-γ, TNF, IL-2, and IL-6, were positively correlated with humoral immune responses, whereas IL-10 levels were not. CONCLUSIONS Older and severely frail individuals may exhibit diminished spike-specific PBMC responses following COVID-19 vaccination compared to the general population. A single booster vaccination may not adequately enhance cell-mediated immunity in older and severely frail individuals to a level comparable to that in the general population. Furthermore, booster vaccination may induce not only a pro-inflammatory cellular immune response but also an anti-inflammatory cellular immune response, potentially mitigating detrimental hyperinflammation.
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Affiliation(s)
- Tomoyuki Kakugawa
- Department of Pulmonology and Gerontology, Graduate School of Medicine, Yamaguchi University, Ube, Japan.
- Medical Corporation WADOKAI, Hofu Rehabilitation Hospital, Hofu, Japan.
- Department of Respiratory Medicine, National Hospital Organization Yamaguchi Ube Medical Center, Ube, Japan.
| | - Yusuke Mimura
- The Department of Clinical Research, National Hospital Organization Yamaguchi Ube Medical Center, Ube, Japan
| | - Yuka Mimura-Kimura
- The Department of Clinical Research, National Hospital Organization Yamaguchi Ube Medical Center, Ube, Japan
| | - Keiko Doi
- Department of Pulmonology and Gerontology, Graduate School of Medicine, Yamaguchi University, Ube, Japan
- Department of Respiratory Medicine and Infectious Disease, Graduate School of Medicine, Yamaguchi University, Ube, Japan
| | - Yuichi Ohteru
- Medical Corporation WADOKAI, Hofu Rehabilitation Hospital, Hofu, Japan
- Department of Respiratory Medicine and Infectious Disease, Graduate School of Medicine, Yamaguchi University, Ube, Japan
| | - Hiroyuki Kakugawa
- Medical Corporation WADOKAI, Hofu Rehabilitation Hospital, Hofu, Japan
| | - Keiji Oishi
- Department of Respiratory Medicine and Infectious Disease, Graduate School of Medicine, Yamaguchi University, Ube, Japan
| | - Masahiro Kakugawa
- Medical Corporation WADOKAI, Hofu Rehabilitation Hospital, Hofu, Japan
| | - Tsunahiko Hirano
- Department of Respiratory Medicine and Infectious Disease, Graduate School of Medicine, Yamaguchi University, Ube, Japan
| | - Kazuto Matsunaga
- Department of Respiratory Medicine and Infectious Disease, Graduate School of Medicine, Yamaguchi University, Ube, Japan
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Epstein–Barr Virus (EBV) Genotypes Associated with the Immunopathological Profile of People Living with HIV-1: Immunological Aspects of Primary EBV Infection. Viruses 2022; 14:v14020168. [PMID: 35215762 PMCID: PMC8880155 DOI: 10.3390/v14020168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/07/2022] [Accepted: 01/11/2022] [Indexed: 11/16/2022] Open
Abstract
Background: The aim of the present study was to evaluate the immunological profile of adult HIV-1+ patients coinfected with primary Epstein–Barr virus (EBV) infection who were free of antiretroviral drugs and inhabitants of the Brazilian Amazon region. Materials and methods: Primary EBV infection was screened by the semiquantitative detection of IgM and IgG anti-VCA. Genotypes were determined by conventional PCR. EBV and HIV viral load (VL) were quantified by real-time PCR. Cytokine dosage and cell quantification were performed by cytometry. Results: Only HIV-1+ individuals had primary EBV infection (7.12%). The EBV-1 genotype was the most prevalent (47.37%). The VL of HIV-1 was lower in the HIV/EBV-2 group. CD4+ T lymphocytes were inversely proportional to the VL of EBV in HIV/EBV-1/2 multi-infected patients. The HIV/EBV-2 group had the lowest cytokine levels, especially IFN-γ and IL-4. Different correlations were proposed for each coinfection. The late search for specific care related to HIV infection directly affected the cytokine profile and the number of CD8+ T lymphocytes. Symptoms were associated with the increase in VL of both viruses and cytokine profile. Conclusions: Different immunological profiles were associated with EBV genotypes in primary infection, with EBV-2 being more frequent in patients with low levels of HIV viral load. With late infection monitoring and consequent delay in the initiation of HAART, clinical changes and effects on the maintenance of the immune response were observed.
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Wang X, Ha D, Yoshitake R, Chen S. White button mushroom interrupts tissue AR-mediated TMPRSS2 expression and attenuates pro-inflammatory cytokines in C57BL/6 mice. NPJ Sci Food 2021; 5:20. [PMID: 34341347 PMCID: PMC8329194 DOI: 10.1038/s41538-021-00102-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 06/24/2021] [Indexed: 12/29/2022] Open
Abstract
White button mushroom (WBM) is a common edible mushroom consumed in the United States and many European and Asia-Pacific countries. We previously reported that dietary WBM antagonized dihydrotestosterone (DHT)-induced androgen receptor (AR) activation and reduced myeloid-derived suppressor cells (MDSCs) in prostate cancer animal models and patients. Transmembrane protease serine 2 (TMPRSS2), an androgen-induced protease in prostate cancer, has been implicated in influenza and coronavirus entry into the host cell, triggering host immune response. The present study on C57BL/6 mice revealed that WBM is a unique functional food that (A) interrupts AR-mediated TMPRSS2 expression in prostate, lungs, small intestine, and kidneys through its AR antagonistic activity and (B) attenuates serum pro-inflammatory cytokines and reduces MDSC counts through its immunoregulatory activity. These findings provide a scientific basis for translational studies toward clinical applications of WBM in diseases related to TMPRSS2 expression and immune dysregulation.
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Affiliation(s)
- Xiaoqiang Wang
- Department of Cancer Biology, Beckman Research Institute, City of Hope, 1500E Duarte, Duarte, 91010, CA, USA
| | - Desiree Ha
- Department of Cancer Biology, Beckman Research Institute, City of Hope, 1500E Duarte, Duarte, 91010, CA, USA
| | - Ryohei Yoshitake
- Department of Cancer Biology, Beckman Research Institute, City of Hope, 1500E Duarte, Duarte, 91010, CA, USA
| | - Shiuan Chen
- Department of Cancer Biology, Beckman Research Institute, City of Hope, 1500E Duarte, Duarte, 91010, CA, USA.
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Chen S, Wang X, Ha D, Yoshitake R. White Button Mushroom (Agaricus bisporus) Interrupts Tissue AR-TMPRSS2 Expression and Attenuates Pro-inflammatory Cytokines in C57BL/6 Mice: Implication for COVID-19 Dietary Intervention. RESEARCH SQUARE 2021:rs.3.rs-244245. [PMID: 33791688 PMCID: PMC8010737 DOI: 10.21203/rs.3.rs-244245/v1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Transmembrane protease serine 2 (TMPRSS2), an androgen-induced protease associated with prostate cancer, is one putative receptor for coronavirus entry into host cells, where triggering aggressive inflammatory cytokine storm and possibly death in COVID-19 patients. We previously reported that dietary white button mushroom (WBM) antagonized dihydrotestosterone (DHT)-induced androgen receptor (AR) activation and reduced myeloid-derived suppressor cells (MDSCs) in prostate cancer animal models and patients. The present study on C57BL/6 mice revealed that WBM is a unique food that A ) interrupts DHT induced AR-TMPRSS2 expression in putative COVID-19 targeted organs through its AR antagonistic activity and B ) attenuates serum pro-inflammatory cytokines which have been implicated in COVID-19 pathogenesis. We hereby propose WBM intake as a potentially low-cost, efficient, and safe dietary intervention to mitigate COVID-19.
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Affiliation(s)
| | | | - Desiree Ha
- Beckman Research Institute, City of Hope
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Lindner HA, Velásquez SY, Thiel M, Kirschning T. Lung Protection vs. Infection Resolution: Interleukin 10 Suspected of Double-Dealing in COVID-19. Front Immunol 2021; 12:602130. [PMID: 33746948 PMCID: PMC7966717 DOI: 10.3389/fimmu.2021.602130] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 02/09/2021] [Indexed: 12/22/2022] Open
Abstract
The pathological processes by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection that make the virus a major threat to global health are insufficiently understood. Inefficient viral clearance at any stage is a hallmark of coronavirus disease 2019 (COVID-19). Disease severity is associated with increases in peripheral blood cytokines among which interleukin 10 (IL-10) increases particularly early and independent of patient age, which is not seen in active SARS-CoV infection. Here, we consider the known multi-faceted immune regulatory role of IL-10, both in protecting the lung from injury and in defense against infections, as well as its potential cellular source. While the absence of an IL-10 response in SARS is thought to contribute to early deterioration, we suspect IL-10 to protect the lung from early immune-mediated damage and to interfere with viral clearance in COVID-19. This may further both viral spread and poor outcome in many high-risk patients. Identifying the features of the viral genotype, which specifically underlie the different IL-10 dynamics as an etiological endotype and the different viral load kinetics and outcomes as clinical phenotype, may unveil a new immune evasive strategy of SARS-CoV-2.
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Affiliation(s)
- Holger A. Lindner
- Department of Anesthesiology and Surgical Intensive Care Medicine, Medical Faculty Mannheim, University Medical Center Mannheim, Mannheim Institute for Innate Immunoscience (MI3), Heidelberg University, Mannheim, Germany
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Zhu M, Zhou J, Liang Y, Nair V, Yao Y, Cheng Z. CCCH-type zinc finger antiviral protein mediates antiviral immune response by activating T cells. J Leukoc Biol 2020; 107:299-307. [PMID: 31945209 DOI: 10.1002/jlb.1ab1119-314rrr] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 02/04/2023] Open
Abstract
The zinc finger antiviral protein (ZAP), as a host restriction factor, inhibits the replication of certain viruses by binding viral mRNA or proteins for degradation. However, little is known about the role of ZAP in the antiviral immune response. We now show that ZAP participates in the antiviral immune response by activating T cells. Overexpression of ZAP significantly inhibited avian leukosis virus subgroup J (ALV-J) replication and reduced the associated inflammatory damage in vivo. In this study, we found that ZAP tended to be expressed in T lymphocytes, especially after ALV-J infection. T lymphocyte proliferation proceeded as usual in response to ALV-J infection in the presence of ZAP, indicating that ZAP endows T lymphocytes with resistance to the immunosuppression caused by ALV-J. Furthermore, ZAP activated cytokine secretion by T lymphocytes by contributing to nuclear translocation of nuclear factors of activated T cells and indirectly promoted anti-ALV-J antibody generation. Together, our findings show that ZAP, acting as an immunomodulatory factor, is involved in the antiviral immune response via T lymphocyte activation.
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Affiliation(s)
- Mingjun Zhu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong, China
| | - Jing Zhou
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong, China
| | - Yanfei Liang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong, China
| | - Venugopal Nair
- The Pirbright Institute & UK-China Centre of Excellence on Avian Disease Research, Pirbright, Guildford, Surrey, United Kingdom
| | - Yongxiu Yao
- The Pirbright Institute & UK-China Centre of Excellence on Avian Disease Research, Pirbright, Guildford, Surrey, United Kingdom
| | - Ziqiang Cheng
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong, China
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Che Mat NF, Siddiqui S, Mehta D, Seaver K, Banete A, Alothaimeen T, Gee K, Basta S. Lymphocytic choriomeningitis virus infection of dendritic cells interferes with TLR-induced IL-12/IL-23 cytokine production in an IL-10 independent manner. Cytokine 2018; 108:105-114. [PMID: 29602153 DOI: 10.1016/j.cyto.2018.03.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 02/25/2018] [Accepted: 03/15/2018] [Indexed: 11/25/2022]
Abstract
Dendritic cells produce IL-12 and IL-23 in response to viral and bacterial infection and these cytokines are responsible for successful pathogen clearance. How sequential viral and bacterial infections affect the production of IL-12 and IL-23 is currently not known. Our study demonstrates that in dendritic cells infected with Lymphocytic choriomeningitis virus (LCMV), TLR activation with bacterial PAMPs resulted in reduced IL-12 and IL-23 expression compared to non-infected cells. Furthermore, expression of other proinflammatory cytokines, TNF-α and IL-6, were not inhibited under these conditions. We discovered that TLR-induced phosphorylation of p38 was significantly inhibited in LCMV-infected cells. We detected enhanced expression of suppressor of cytokine signalling (SOCS)-3 and IL-10. Yet, neutralizing IL-10 did not restore IL-12/IL-23 expression. Taken together, these results show that virus infection interferes with the magnitude of TLR-mediated inflammatory responses by repressing specific cytokine expression.
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Affiliation(s)
- Nor Fazila Che Mat
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Sarah Siddiqui
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Divya Mehta
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Kyle Seaver
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Andra Banete
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Torki Alothaimeen
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Katrina Gee
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada.
| | - Sameh Basta
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada.
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Reyes-Cerpa S, Reyes-López F, Toro-Ascuy D, Montero R, Maisey K, Acuña-Castillo C, Sunyer JO, Parra D, Sandino AM, Imarai M. Induction of anti-inflammatory cytokine expression by IPNV in persistent infection. FISH & SHELLFISH IMMUNOLOGY 2014; 41:172-182. [PMID: 25193394 DOI: 10.1016/j.fsi.2014.08.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 08/18/2014] [Accepted: 08/25/2014] [Indexed: 06/03/2023]
Abstract
Infectious Pancreatic Necrosis Virus (IPNV) is the agent of a well-characterized acute disease that produces a systemic infection and high mortality in farmed fish species but also persistent infection in surviving fish after outbreaks. Because viral persistence of susceptible mammal hosts appears to be associated with the modulation of anti-inflammatory cytokine expression, in this study we examined the expression levels of key pro- and anti-inflammatory cytokines in kidney and spleen of trout, as well as humoral immune response (IgM and IgT) during experimental persistent viral infection and in the acute phase of infection as a comparison. IPNV infection in rainbow trout resulted in a distinct profile of cytokine expression depending on the type of infection, acute or persistent. Levels of early pro-inflammatory cytokines, IL-1β and IL-8, did not increase in the head kidney of the fish with persistent asymptomatic infection but increased in some of the symptomatic infected fish. The antiviral cytokine IFNα was not significantly induced in any of the infected fish groups. The level of expression of the Th1-related cytokine IL-12 was significantly higher in trout with persistent asymptomatic infection than in symptomatic fish. This was also accompanied by an increase in IFNγ. The anti-inflammatory cytokines IL-10 and TGF-β1 had distinct expression profiles. While IL-10 expression increased in all infected fish, TGF-β1 was only up-regulated in fish with persistent infection. All infected fish had significantly lower total IgM levels than the non-infected fish whereas IgT levels did not change. Specific and neutralizing antibodies against IPNV were not observed in acute and persistent infection except in the group of fish with the lowest degree of clinical signs. Interestingly, the lack of humoral immune response could be associated with the high expression of anti-inflammatory cytokines, which might inhibit antibody production. The balance between pro-inflammatory Th1 type cytokines and the regulatory cytokines could explain the high percentage of survival and the resolution of the inflammatory response in the IPNV-infected fish but also the establishment of viral persistence.
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Affiliation(s)
- Sebastián Reyes-Cerpa
- Laboratorio de Inmunología, Centro de Biotecnología Acuícola (CBA), Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.
| | - Felipe Reyes-López
- Laboratorio de Inmunología, Centro de Biotecnología Acuícola (CBA), Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Daniela Toro-Ascuy
- Laboratorio de Inmunología, Centro de Biotecnología Acuícola (CBA), Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Ruth Montero
- Laboratorio de Inmunología, Centro de Biotecnología Acuícola (CBA), Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Kevin Maisey
- Laboratorio de Inmunología, Centro de Biotecnología Acuícola (CBA), Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Claudio Acuña-Castillo
- Laboratorio de Inmunoterapia, Centro de Biotecnología Acuícola (CBA), Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - J Oriol Sunyer
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - David Parra
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ana María Sandino
- Laboratorio de Virología, Centro de Biotecnología Acuícola (CBA), Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Mónica Imarai
- Laboratorio de Inmunología, Centro de Biotecnología Acuícola (CBA), Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.
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Su SS, He H, Kong LB, Zhang YG, Zhao SX, Wang RQ, Zheng HW, Sun DX, Nan YM, Yu J. Regulatory phenotype, PD-1 and TLR3 expression in T cells and monocytes from HCV patients undergoing antiviral therapy: a randomized clinical trial. PLoS One 2014; 9:e93620. [PMID: 24709775 PMCID: PMC3977904 DOI: 10.1371/journal.pone.0093620] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 03/06/2014] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND & AIMS The cellular immunity has a profound impact on the status of hepatitis C virus (HCV) infection. However, the response of cellular immunity on the virological response in patients with antiviral treatment remains largely unclear. We aimed to clarify the response of peripheral T cells and monocytes in chronic hepatitis C patients with antiviral treatment. METHODS Patients with chronic hepatitis C were treated either with interferon alpha-2b plus ribavirin (n = 37) or with pegylated interferon alpha-2a plus ribavirin (n = 33) for up to 24 weeks. Frequencies of peripheral regulatory T-cells (Tregs), programmed death-1 (PD-1) expressing CD4+ T-cells or CD8+ T-cells and toll-like receptor (TLR) 3 expressing CD14+ monocytes were evaluated by flow cytometry in patients at baseline, 12 and 24 weeks following treatment and in 20 healthy controls. RESULTS Frequencies of Tregs, PD-1 and TLR3 expressing cells were higher in patients than those in control subjects (P<0.05). Patients with complete early virological response (cEVR) showed lower Tregs, PD-1 expressing CD4+ or CD8+ T-cells than those without cEVR at 12 weeks (P<0.05). Patients with low TLR3 expressing CD14+ monocytes at baseline had a high rate of cEVR (P<0.05). CONCLUSIONS Low peripheral TLR3 expressing CD14+ monocytes at baseline could serve as a predictor for cEVR of antiviral therapy in chronic HCV-infected patients. The cEVR rates were significantly increased in the patients with reduced circulating Tregs, PD-1 expressing CD4+ or CD8+ T-cells. TRIAL REGISTRATION Chinese Clinical Trial Registry ChiCTR10001090.
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Affiliation(s)
- Shan-shan Su
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Huan He
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ling-bo Kong
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yu-guo Zhang
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Su-xian Zhao
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Rong-qi Wang
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Huan-wei Zheng
- Department of Infectious Disease, The Fifth Hospital of Shijiazhuang City, Shijiazhuang, China
| | - Dian-xing Sun
- Department of Liver Disease, Bethune International Peace Hospital, Shijiazhuang, China
| | - Yue-min Nan
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang, China
- * E-mail:
| | - Jun Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
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Villarreal DO, Talbott KT, Choo DK, Shedlock DJ, Weiner DB. Synthetic DNA vaccine strategies against persistent viral infections. Expert Rev Vaccines 2013; 12:537-54. [PMID: 23659301 DOI: 10.1586/erv.13.33] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The human body has developed an elaborate defense system against microbial pathogens and foreign antigens. However, particular microbes have evolved sophisticated mechanisms to evade immune surveillance, allowing persistence within the human host. In an effort to combat such infections, intensive research has focused on the development of effective prophylactic and therapeutic countermeasures to suppress or clear persistent viral infections. To date, popular therapeutic strategies have included the use of live-attenuated microbes, viral vectors and dendritic-cell vaccines aiming to help suppress or clear infection. In recent years, improved DNA vaccines have now re-emerged as a promising candidate for therapeutic intervention due to the development of advanced optimization and delivery technologies. For instance, genetic optimization of synthetic plasmid constructs and their encoded antigens, in vivo electroporation-mediated vaccine delivery, as well as codelivery with molecular adjuvants have collectively enhanced both transgene expression and the elicitation of vaccine-induced immunity. In addition, the development of potent heterologous prime-boost regimens has also provided significant contributions to DNA vaccine immunogenicity. Herein, the authors will focus on these recent improvements to this synthetic platform in relation to their application in combating persistent virus infection.
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Affiliation(s)
- Daniel O Villarreal
- University of Pennsylvania, Perelman School of Medicine, Department of Pathology & Laboratory Medicine, Philadelphia, PA 19104, USA
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Par G, Szereday L, Berki T, Palinkas L, Halasz M, Miseta A, Hegedus G, Szekeres-Bartho J, Vincze A, Hunyady B, Par A. Increased baseline proinflammatory cytokine production in chronic hepatitis C patients with rapid virological response to peginterferon plus ribavirin. PLoS One 2013; 8:e67770. [PMID: 23874444 PMCID: PMC3706447 DOI: 10.1371/journal.pone.0067770] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 05/21/2013] [Indexed: 02/06/2023] Open
Abstract
Background Chronic hepatitis C (CHC) patients achieving rapid virological response (RVR) on PEG-IFN/ribavirin (P/R) therapy have high chance of sustained virological response (SVR). To analyze host immunological factors associated with RVR, viral kinetics, phenotype distribution and Th1/Th2 cytokine production by peripheral blood mononuclear cells (PBMC) were studied prior to and during P/R therapy. Methods TNF-α, IFN-γ, IL-2, IL-6, IL-4 and IL-10 production by PBMC were measured after Toll-like receptor 4 (TLR-4) or phorbol myristate acetate/Ionomycin stimulation in 20 healthy controls and in 50 CHC patients before receiving and during P/R therapy. RVR was achieved by 14, complete early virological response (cEVR) by 19 patients and 17 patients were null-responders (NR). Results Patients with RVR showed an increased baseline TNF-α and IL-6 production by TLR-4 activated monocytes and increased IFN-γ, decreased IL-4 and IL-10 production by lymphocytes compared to non-RVR patients. SVR was also associated with increased baseline TNF-α production and decreased IL-10 levels compared to patients who did not achieve SVR. Baseline IL-2 production was higher in cEVR compared to NR patients. Antiviral treatment increased TNF-α, IL-6 production by monocytes and IFN-γ secretion by lymphocytes and decreased IL-4 and IL-10 production by lymphocytes in cEVR compared to NR patients. Conclusion RVR was associated with increased baseline proinflammatory cytokine production by TLR-4 stimulated monocytes and by activated lymphocytes. In null-responders and in patients who did not achieve SVR both TLR-4 sensing function and proinflammatory cytokine production were impaired, suggesting that modulation of TLR activity and controlled induction of inflammatory cytokine production may provide further therapeutic strategy for CHC patients non-responding to P/R treatment.
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Affiliation(s)
- Gabriella Par
- Clinical Centre, First Department of Medicine, University of Pécs, Pécs, Hungary
| | - Laszlo Szereday
- Clinical Centre, Department of Medical Microbiology and Immunology, University of Pécs, Pécs, Hungary
- Janos Szentagothai Research Centre, Pécs, Hungary
- * E-mail:
| | - Timea Berki
- Clinical Centre, Department of Immunology and Biotechnology, University of Pécs, Pécs, Hungary
| | - Laszlo Palinkas
- Clinical Centre, Department of Immunology and Biotechnology, University of Pécs, Pécs, Hungary
| | - Melinda Halasz
- Clinical Centre, Department of Medical Microbiology and Immunology, University of Pécs, Pécs, Hungary
- Janos Szentagothai Research Centre, Pécs, Hungary
| | - Attila Miseta
- Clinical Centre, Department of Laboratory Medicine, University of Pécs, University of Pécs, Medical School, Pécs, Hungary
| | - Geza Hegedus
- Department of Pathology, Baranya County Hospital, Pécs, Hungary
| | - Julia Szekeres-Bartho
- Clinical Centre, Department of Medical Microbiology and Immunology, University of Pécs, Pécs, Hungary
| | - Aron Vincze
- Clinical Centre, First Department of Medicine, University of Pécs, Pécs, Hungary
| | - Bela Hunyady
- Clinical Centre, First Department of Medicine, University of Pécs, Pécs, Hungary
| | - Alajos Par
- Clinical Centre, First Department of Medicine, University of Pécs, Pécs, Hungary
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