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da Silva GB, de Carvalho Braga G, Simões JLB, Kempka AP, Bagatini MD. Cytokine storm in human monkeypox: A possible involvement of purinergic signaling. Cytokine 2024; 177:156560. [PMID: 38447385 DOI: 10.1016/j.cyto.2024.156560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/15/2024] [Accepted: 02/21/2024] [Indexed: 03/08/2024]
Abstract
Some evidence has indicated that monkeypox can induce a cytokine storm. Purinergic signaling is a cell pathway related to the cytokine storm. However, the precise mechanisms that lead to cytokine storms in monkeypox infections and the possible involvement of purinergic signaling in the immune response to this virus remain unknown. In this review article, we aimed to highlight a body of scientific evidence that consolidates the role of the cytokine storm in monkeypox infection and proposes a new hypothesis regarding the roles of purinergic signaling in this immune-mediated mechanism. We further suggested some purinergic signaling modulators to mitigate the deleterious and aggravating effects of immune dysregulation in human monkeypox virus infection by inhibiting P2X3, P2X7, P2Y2, and P2Y12, reducing inflammation, and activating A1 and A2A receptors to promote an anti-inflammatory response.
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Affiliation(s)
- Gilnei Bruno da Silva
- Multicentric Postgraduate Program in Biochemistry and Molecular Biology, State University of Santa Catarina, Lages, SC, Brazil.
| | | | | | - Aniela Pinto Kempka
- Multicentric Postgraduate Program in Biochemistry and Molecular Biology, State University of Santa Catarina, Lages, SC, Brazil
| | - Margarete Dulce Bagatini
- Multicentric Postgraduate Program in Biochemistry and Molecular Biology, State University of Santa Catarina, Lages, SC, Brazil; Postgraduate Program in Biomedical Sciences, Federal University of Fronteira Sul, Chapecó, SC, Brazil.
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2
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Cai X, Wang Z, Li X, Zhang J, Ren Z, Shao Y, Xu Y, Zhu Y. Emodin as an Inhibitor of PRV Infection In Vitro and In Vivo. Molecules 2023; 28:6567. [PMID: 37764342 PMCID: PMC10537396 DOI: 10.3390/molecules28186567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/17/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Pseudorabies (PR) is an acute and severe infectious disease caused by pseudorabies virus (PRV). Once the virus infects pigs, it is difficult to eliminate, resulting in major economic losses to the global pig industry. In addition, reports of human infection with PRV suggest that the virus is a potential threat to human health; thus, its significance to public health should be considered. In this paper, the anti-PRV activities of emodin in vitro and in vivo, and its mechanism of action were studied. The results showed that emodin inhibited the proliferation of PRV in PK15 cells in a dose-dependent manner, with an IC50 of 0.127 mg/mL and a selection index of 5.52. The addition of emodin at different stages of viral infection showed that emodin inhibited intracellular replication. Emodin significantly inhibited the expression of the IE180, EP0, UL29, UL44, US6, and UL27 genes of PRV within 48 h. Emodin also significantly inhibited the expression of PRV gB and gD proteins. The molecular docking results suggested that emodin might form hydrogen bonds with PRV gB and gD proteins and affect the structure of viral proteins. Emodin effectively inhibited the apoptosis induced by PRV infection. Moreover, emodin showed a good protective effect on PRV-infected mice. During the experimental period, all the control PRV-infected mice died resulting in a survival rate of 0%, while the survival rate of emodin-treated mice was 28.5%. Emodin also significantly inhibited the replication of PRV in the heart, liver, brain, kidneys and lungs of mice and alleviated tissue and organ damage caused by PRV infection. Emodin was able to combat viral infection by regulating the levels of the cytokines TNF-α, IFN-γ, IL-6, and IL-4 in the sera of infected mice. These results indicate that emodin has good anti-PRV activity in vitro and in vivo, and is expected to be a new agent for the prevention and control of PRV infection.
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Affiliation(s)
- Xiaojing Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; (X.C.); (Z.W.); (Z.R.); (Y.S.); (Y.X.)
| | - Zhiying Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; (X.C.); (Z.W.); (Z.R.); (Y.S.); (Y.X.)
| | - Xiaocheng Li
- Harbin Da BEINONG Animal Husbandry Technology Co., Ltd., Harbin 150030, China; (X.L.); (J.Z.)
| | - Jing Zhang
- Harbin Da BEINONG Animal Husbandry Technology Co., Ltd., Harbin 150030, China; (X.L.); (J.Z.)
| | - Zhiyuan Ren
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; (X.C.); (Z.W.); (Z.R.); (Y.S.); (Y.X.)
| | - Yi Shao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; (X.C.); (Z.W.); (Z.R.); (Y.S.); (Y.X.)
| | - Yongkang Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; (X.C.); (Z.W.); (Z.R.); (Y.S.); (Y.X.)
| | - Yan Zhu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; (X.C.); (Z.W.); (Z.R.); (Y.S.); (Y.X.)
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Sankaradoss A, Jagtap S, Nazir J, Moula SE, Modak A, Fialho J, Iyer M, Shastri JS, Dias M, Gadepalli R, Aggarwal A, Vedpathak M, Agrawal S, Pandit A, Nisheetha A, Kumar A, Bordoloi M, Shafi M, Shelar B, Balachandra SS, Damodar T, Masika MM, Mwaura P, Anzala O, Muthumani K, Sowdhamini R, Medigeshi GR, Roy R, Pattabiraman C, Krishna S, Sreekumar E. Immune profile and responses of a novel dengue DNA vaccine encoding an EDIII-NS1 consensus design based on Indo-African sequences. Mol Ther 2022; 30:2058-2077. [PMID: 34999210 PMCID: PMC8736276 DOI: 10.1016/j.ymthe.2022.01.013] [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: 11/02/2021] [Revised: 12/24/2021] [Accepted: 01/05/2022] [Indexed: 12/30/2022] Open
Abstract
The ongoing COVID-19 pandemic highlights the need to tackle viral variants, expand the number of antigens, and assess diverse delivery systems for vaccines against emerging viruses. In the present study, a DNA vaccine candidate was generated by combining in tandem envelope protein domain III (EDIII) of dengue virus serotypes 1-4 and a dengue virus (DENV)-2 non-structural protein 1 (NS1) protein-coding region. Each domain was designed as a serotype-specific consensus coding sequence derived from different genotypes based on the whole genome sequencing of clinical isolates in India and complemented with data from Africa. This sequence was further optimized for protein expression. In silico structural analysis of the EDIII consensus sequence revealed that epitopes are structurally conserved and immunogenic. The vaccination of mice with this construct induced pan-serotype neutralizing antibodies and antigen-specific T cell responses. Assaying intracellular interferon (IFN)-γ staining, immunoglobulin IgG2(a/c)/IgG1 ratios, and immune gene profiling suggests a strong Th1-dominant immune response. Finally, the passive transfer of immune sera protected AG129 mice challenged with a virulent, non-mouse-adapted DENV-2 strain. Our findings collectively suggest an alternative strategy for dengue vaccine design by offering a novel vaccine candidate with a possible broad-spectrum protection and a successful clinical translation either as a stand alone or in a mix and match strategy.
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Affiliation(s)
- Arun Sankaradoss
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India,Corresponding author: National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India.
| | - Suraj Jagtap
- Department of Chemical Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Junaid Nazir
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Shefta E. Moula
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Ayan Modak
- Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala 695014, India
| | - Joshuah Fialho
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Meenakshi Iyer
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Jayanthi S. Shastri
- Department of Microbiology, T.N.Medical College & B.y.L.Nair Hospital, Mumbai 400008, India
| | - Mary Dias
- Division of Infectious Disease, St. John's Medical College and Hospital, Bangalore 560034, India
| | - Ravisekhar Gadepalli
- Department of Microbiology, All India Institute of Medical Sciences, Jodhpur 342005, India
| | - Alisha Aggarwal
- Department of Microbiology, All India Institute of Medical Sciences, Jodhpur 342005, India
| | - Manoj Vedpathak
- Department of Microbiology, T.N.Medical College & B.y.L.Nair Hospital, Mumbai 400008, India
| | - Sachee Agrawal
- Department of Microbiology, T.N.Medical College & B.y.L.Nair Hospital, Mumbai 400008, India
| | - Awadhesh Pandit
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Amul Nisheetha
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Anuj Kumar
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Mahasweta Bordoloi
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Mohamed Shafi
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Bhagyashree Shelar
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Swathi S. Balachandra
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Tina Damodar
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Moses Muia Masika
- KAVI Institute of Clinical Research, University of Nairobi, Nairobi 19676-00202, Kenya
| | - Patrick Mwaura
- KAVI Institute of Clinical Research, University of Nairobi, Nairobi 19676-00202, Kenya
| | - Omu Anzala
- KAVI Institute of Clinical Research, University of Nairobi, Nairobi 19676-00202, Kenya
| | - Kar Muthumani
- Vaccine and Immunotherapy Center, Wistar Institute, Philadelphia, PA 19104, USA
| | - Ramanathan Sowdhamini
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | | | - Rahul Roy
- Department of Chemical Engineering, Indian Institute of Science, Bangalore, India,Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India,Center for Biosystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Chitra Pattabiraman
- Department of Neurovirology, National Institute of Mental Health and Neurosciences, Bangalore 560029, India
| | - Sudhir Krishna
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India,School of Interdisciplinary Life Sciences, Indian Institute of Technology Goa, Ponda 404401, India
| | - Easwaran Sreekumar
- Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala 695014, India,Corresponding author: Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala 695014, India
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Brewer MG, Monticelli SR, Moran MC, Miller BL, Beck LA, Ward BM. Conditions That Simulate the Environment of Atopic Dermatitis Enhance Susceptibility of Human Keratinocytes to Vaccinia Virus. Cells 2022; 11:1337. [PMID: 35456017 PMCID: PMC9025056 DOI: 10.3390/cells11081337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/05/2022] [Accepted: 04/12/2022] [Indexed: 02/06/2023] Open
Abstract
Individuals with underlying chronic skin conditions, notably atopic dermatitis (AD), are disproportionately affected by infections from members of the herpesviridae, papovaviridae, and poxviridae families. Many patients with AD experience recurrent, widespread cutaneous viral infections that can lead to viremia, serious organ complications, and even death. Little is known about how the type 2 inflammatory environment observed in the skin of AD patients impacts the susceptibility of epidermal cells (keratinocytes) to viral pathogens. Herein, we studied the susceptibility of keratinocytes to the prototypical poxvirus, vaccinia virus (VV)-the causative agent of eczema vaccinatum-under conditions that simulate the epidermal environment observed in AD. Treatment of keratinocytes with type 2 cytokines (IL-4 and -13) to simulate the inflammatory environment or a tight junction disrupting peptide to mirror the barrier disruption observed in AD patients, resulted in a differentiation-dependent increase in susceptibility to VV. Furthermore, pan JAK inhibition was able to diminish the VV susceptibility occurring in keratinocytes exposed to type 2 cytokines. We propose that in AD, the increased viral susceptibility of keratinocytes leads to enhanced virus production in the skin, which contributes to the rampant dissemination and pathology seen within patients.
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Affiliation(s)
- Matthew G. Brewer
- Department of Dermatology, University of Rochester, Rochester, NY 14642, USA; (B.L.M.); (L.A.B.)
| | - Stephanie R. Monticelli
- Department of Microbiology and Immunology, University of Rochester, Rochester, NY 14642, USA; (S.R.M.); (M.C.M.)
| | - Mary C. Moran
- Department of Microbiology and Immunology, University of Rochester, Rochester, NY 14642, USA; (S.R.M.); (M.C.M.)
| | - Benjamin L. Miller
- Department of Dermatology, University of Rochester, Rochester, NY 14642, USA; (B.L.M.); (L.A.B.)
| | - Lisa A. Beck
- Department of Dermatology, University of Rochester, Rochester, NY 14642, USA; (B.L.M.); (L.A.B.)
| | - Brian M. Ward
- Department of Microbiology and Immunology, University of Rochester, Rochester, NY 14642, USA; (S.R.M.); (M.C.M.)
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Sana M, Rashid M, Rashid I, Akbar H, Gomez-Marin JE, Dimier-Poisson I. Immune response against toxoplasmosis-some recent updates RH: Toxoplasma gondii immune response. Int J Immunopathol Pharmacol 2022; 36:3946320221078436. [PMID: 35227108 PMCID: PMC8891885 DOI: 10.1177/03946320221078436] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AIMS Cytokines, soluble mediators of immunity, are key factors of the innate and adaptive immune system. They are secreted from and interact with various types of immune cells to manipulate host body's immune cell physiology for a counter-attack on the foreign body. A study was designed to explore the mechanism of Toxoplasma gondii (T. gondii) resistance from host immune response. METHODS AND RESULTS The published data on aspect of host (murine and human) immune response against T. gondii was taken from Google scholar and PubMed. Most relevant literature was included in this study. The basic mechanism of immune response starts from the interactions of antigens with host immune cells to trigger the production of cytokines (pro-inflammatory and anti-inflammatory) which then act by forming a cytokinome (network of cytokine). Their secretory equilibrium is essential for endowing resistance to the host against infectious diseases, particularly toxoplasmosis. A narrow balance lying between Th1, Th2, and Th17 cytokines (as demonstrated until now) is essential for the development of resistance against T. gondii as well as for the survival of host. Excessive production of pro-inflammatory cytokines leads to tissue damage resulting in the production of anti-inflammatory cytokines which enhances the proliferation of Toxoplasma. Stress and other infectious diseases (human immunodeficiency virus (HIV)) that weaken the host immunity particularly the cellular component, make the host susceptible to toxoplasmosis especially in pregnant women. CONCLUSION The current review findings state that in vitro harvesting of IL12 from DCs, Np and MΦ upon exposure with T. gondii might be a source for therapeutic use in toxoplasmosis. Current review also suggests that therapeutic interventions leading to up-regulation/supplementation of SOCS-3, IL12, and IFNγ to the infected host could be a solution to sterile immunity against T. gondii infection. This would be of interest particularly in patients passing through immunosuppression owing to any reason like the ones receiving anti-cancer therapy, the ones undergoing immunosuppressive therapy for graft/transplantation, the ones suffering from immunodeficiency virus (HIV) or having AIDS. Another imortant suggestion is to launch the efforts for a vaccine based on GRA6Nt or other similar antigens of T. gondii as a probable tool to destroy tissue cysts.
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Affiliation(s)
- Madiha Sana
- Department of Parasitology, 66920University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Rashid
- Department of Parasitology, Faculty of Veterinary and Animal Sciences, 66920The Islamia University of Bahawalpur, Pakistan
| | - Imran Rashid
- Department of Parasitology, 66920University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Haroon Akbar
- Department of Parasitology, 66920University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Jorge E Gomez-Marin
- Grupo Gepamol, Centro de Investigaciones Biomedicas, Universidad del Quindio, Armenia, CO, South America
| | - Isabelle Dimier-Poisson
- Université de Tours, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE), Unité mixte de recherche 1282 (UMR1282), Infectiologie et santé publique (ISP), Tours, France
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6
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Marcano VC, Susta L, Diel DG, Cardenas-Garcia S, Miller PJ, Afonso CL, Brown CC. Evaluation of chickens infected with a recombinant virulent NDV clone expressing chicken IL4. Microb Pathog 2021; 159:105116. [PMID: 34339794 DOI: 10.1016/j.micpath.2021.105116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND There is evidence that chicken IL4 (chIL4) functions similarly to its mammalian analogue by enhancing type 2 T helper (Th2) humoral immunity and promoting protection against parasitic infections; however, no studies have been performed to assess the effect of chIL4 on the pathogenesis of Newcastle disease (ND). To assess the role of chIL4 in velogenic NDV pathogenesis we created a vNDV infectious clone expressing chIL4. We hypothesized that co-expression of chIL4 during virus replication would result in decreased inflammation caused by the Th1 response and thereby increasing survival to challenge with vNDV. METHODS To evaluate the effect of chIL4 during early infection with velogenic Newcastle disease virus (NDV) in chickens, recombinant NDV clones expressing either chIL4 (rZJ1-IL4) or a control expressing green fluorescent protein (rZJ1-GFP) were created by inserting an expression cassette in an intergenic region of the NDV genome. The pathogenesis of rZJ1-IL4 was assessed in 4-week-old specific pathogen free chickens. The extent of virus replication was evaluated by titration in mucosal secretions and immunohistochemistry in multiple tissues. Expression of chIL4 was confirmed in tissues using immunohistochemistry. RESULTS Infection of birds with the rZJ1-IL4 resulted in successful viral replication in vivo and in vitro and generation of the chIL4 in tissues. All birds were clinically normal 2 DPI, with one bird in each group showing conjunctival swelling and enlarged spleens grossly. At 5 DPI, moderate or severe depression was observed in birds infected with rZJ1-GFP or rZJ1-IL4, respectively. Neurological signs and thymic atrophy were observed in one bird infected with rZJ1-IL4. Grossly, conjunctival swelling, mottled spleen and proventricular hemorrhages were observed at 5 DPI in one bird from each group. At 5 DPI, severe necrosis in the spleen, bursa and cecal tonsils were observed in birds infected with rZJ1-GFP, along with minimal evidence of chIL4 expression. In contrast, splenic atrophy, and moderate necrosis in the bursa and cecal tonsils were observed in birds infected with rZJ1-IL4. In addition, chIL4 signal was found in all tissues of rZJ1-IL4 birds at 5DPI. CONCLUSIONS The production of chIL4 by a recombinant NDV strain resulted in the activation of the positive feedback loop associated with IL4 production. Insertion of chIL4 into NDV may decrease necrosis to lymphoid organs while increasing the severity of lymphoid atrophy and prolonged disease. However, with a low number of birds it is difficult to determine whether these results are significant to disease outcome.
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Affiliation(s)
- V C Marcano
- Southeast Poultry Research Laboratory, Agricultural Research Service, US Department of Agriculture, Athens, GA, USA; Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, GA, 30602-7388, United States.
| | - L Susta
- Southeast Poultry Research Laboratory, Agricultural Research Service, US Department of Agriculture, Athens, GA, USA; Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, GA, 30602-7388, United States
| | - D G Diel
- Southeast Poultry Research Laboratory, Agricultural Research Service, US Department of Agriculture, Athens, GA, USA
| | - S Cardenas-Garcia
- Southeast Poultry Research Laboratory, Agricultural Research Service, US Department of Agriculture, Athens, GA, USA; Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, GA, 30602-7388, United States
| | - P J Miller
- Southeast Poultry Research Laboratory, Agricultural Research Service, US Department of Agriculture, Athens, GA, USA
| | - C L Afonso
- Southeast Poultry Research Laboratory, Agricultural Research Service, US Department of Agriculture, Athens, GA, USA
| | - C C Brown
- Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, GA, 30602-7388, United States
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Martinez-Cabriales SA, Kirchhof MG, Constantinescu CM, Murguia-Favela L, Ramien ML. Recommendations for Vaccination in Children with Atopic Dermatitis Treated with Dupilumab: A Consensus Meeting, 2020. Am J Clin Dermatol 2021; 22:443-455. [PMID: 34076879 PMCID: PMC8169786 DOI: 10.1007/s40257-021-00607-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2021] [Indexed: 11/29/2022]
Abstract
Dupilumab is the only biologic therapy currently approved in Europe and the United States for severe atopic dermatitis in patients 6 years of age or older. Off-label use is rationalized in younger children with severe atopic dermatitis. Decisions about vaccination for children on dupilumab are complex and depend on both the child’s current treatment and the type of vaccination required. To achieve consensus on recommendations for vaccination of pediatric patients with atopic dermatitis treated with or planning to start dupilumab, a review of the literature and a modified-Delphi process was conducted by a working group of 5 panelists with expertise in dermatology, immunology, infectious diseases and vaccination. Here, we provide seven recommendations for vaccination of pediatric patients with atopic dermatitis treated with or planning to start dupilumab. These recommendations serve to guide physicians’ decisions about vaccination in children with atopic dermatitis treated with dupilumab. Furthermore, we highlight an unmet need for research to determine how significantly dupilumab affects cellular and humoral immune responses to vaccination with live attenuated and inactivated vaccines.
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Affiliation(s)
- Sylvia A Martinez-Cabriales
- Section of Community Pediatrics, Department of Pediatrics, Alberta Children's Hospital and University of Calgary, Calgary, AB, Canada
| | - Mark G Kirchhof
- Division of Dermatology, Department of Medicine, University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada
| | - Cora M Constantinescu
- Section of Infectious Diseases, Department of Pediatrics, Alberta Children's Hospital and University of Calgary, Calgary, AB, Canada
| | - Luis Murguia-Favela
- Section of Hematology and Immunology, Department of Pediatrics, Alberta Children's Hospital and University of Calgary, Calgary, AB, Canada
| | - Michele L Ramien
- Section of Community Pediatrics, Department of Pediatrics, Alberta Children's Hospital and University of Calgary, Calgary, AB, Canada.
- Division of Dermatology, Department of Medicine, University of Calgary, Calgary, AB, Canada.
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8
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Reynolds SD, Mathur AN, Chiu YE, Brandling-Bennett HA, Pope E, Siegel MP, Holland KE, Paller AS, Siegfried EC, Tom WL, Lara-Corrales I, Tollefson MM, Maguiness S, Eichenfield LF, Sugarman J, Frieden IJ, Oza VS, Cipriano SD, Huang JT, Shah SD, Lauren CT, Castelo-Soccio L, McMahon P, Cordoro KM. Systemic immunosuppressive therapy for inflammatory skin diseases in children: Expert consensus-based guidance for clinical decision-making during the COVID-19 pandemic. Pediatr Dermatol 2020; 37:424-434. [PMID: 32320494 DOI: 10.1111/pde.14202] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND/OBJECTIVES The COVID-19 pandemic has raised questions about the approach to management of systemic immunosuppressive therapies for dermatologic indications in children. Change to: Given the absence of data to address concerns related to SARS-CoV-2 infection and systemic immunosuppressive therapies in an evidence-based manner, a Pediatric Dermatology COVID-19 Response Task Force (PDCRTF) was assembled to offer time-sensitive guidance for clinicians. METHODS A survey was distributed to an expert panel of 37 pediatric dermatologists on the PDCRTF to assess expert opinion and current practice related to three primary domains of systemic therapy: initiation, continuation, and laboratory monitoring. RESULTS Nearly all respondents (97%) reported that the COVID-19 pandemic had impacted their decision to initiate immunosuppressive medications. The majority of pediatric dermatologists (87%) reported that they were pausing or reducing the frequency of laboratory monitoring for certain immunosuppressive medications. In asymptomatic patients, continuing therapy was the most popular choice across all medications queried. The majority agreed that patients on immunosuppressive medications who have a household exposure to COVID-19 or test positive for new infection should temporarily discontinue systemic and biologic medications, with the exception of systemic steroids, which may require tapering. CONCLUSIONS The ultimate decision regarding initiation, continuation, and laboratory monitoring of immunosuppressive therapy during the pandemic requires careful deliberation, consideration of the little evidence available, and discussion with families. Consideration of an individual's adherence to COVID-19 preventive measures, risk of exposure, and the potential severity if infected must be weighed against the dermatological disease, medication, and risks to the patient of tapering or discontinuing therapies.
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Affiliation(s)
- Sean D Reynolds
- Department of Dermatology, University of California San Francisco School of Medicine, San Francisco, California, USA
| | - Anubhav N Mathur
- Department of Dermatology, University of California San Francisco School of Medicine, San Francisco, California, USA
| | - Yvonne E Chiu
- Departments of Dermatology and Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Heather A Brandling-Bennett
- Division of Dermatology, Department of Pediatrics, Seattle Children's Hospital, University of Washington, Seattle, Washington, USA
| | - Elena Pope
- Dermatology Section, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Michael P Siegel
- Pediatric Dermatology Research Alliance, Indianapolis, Indiana, USA
| | - Kristen E Holland
- Departments of Dermatology and Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Amy S Paller
- Departments of Dermatology and Pediatrics, Northwestern University, Chicago, Illinois, USA
| | - Elaine C Siegfried
- Department of Pediatrics, Saint Louis University and Cardinal Glennon Children's Hospital, St. Louis, Missouri, USA
| | - Wynnis L Tom
- Division of Pediatric and Adolescent Dermatology, University of California, San Diego, California, USA.,Rady Children's Hospital, San Diego, California, USA
| | | | - Megha M Tollefson
- Departments of Dermatology and Pediatrics, Mayo Clinic and Mayo Clinic Children's Center, Rochester, Minnesota, USA
| | - Sheilagh Maguiness
- Department of Dermatology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lawrence F Eichenfield
- Division of Pediatric and Adolescent Dermatology, University of California, San Diego, California, USA.,Rady Children's Hospital, San Diego, California, USA
| | - Jeffrey Sugarman
- Department of Dermatology, University of California San Francisco School of Medicine, San Francisco, California, USA
| | - Ilona J Frieden
- Department of Dermatology, University of California San Francisco School of Medicine, San Francisco, California, USA
| | - Vikash S Oza
- Ronald O Perelman Department of Dermatology, NYU Grossman School of Medicine, New York, New York, USA
| | - Sarah D Cipriano
- Department of Dermatology, University of Utah, Salt Lake City, Utah, USA
| | - Jennifer T Huang
- Dermatology Program, Department of Dermatology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Sonal D Shah
- Department of Dermatology, University of California San Francisco School of Medicine, San Francisco, California, USA
| | - Christine T Lauren
- Departments of Dermatology and Pediatrics, Columbia University Vagelos College of Physicians and Surgeons, New York, New York, USA
| | | | - Patrick McMahon
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Kelly M Cordoro
- Department of Dermatology, University of California San Francisco School of Medicine, San Francisco, California, USA
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9
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Cytokines, Antibodies, and Histopathological Profiles during Giardia Infection and Variant-Specific Surface Protein-Based Vaccination. Infect Immun 2018; 86:IAI.00773-17. [PMID: 29555679 DOI: 10.1128/iai.00773-17] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 03/10/2018] [Indexed: 12/13/2022] Open
Abstract
Giardiasis is one of the most common human intestinal diseases worldwide. Several experimental animal models have been used to evaluate Giardia infections, with gerbils (Meriones unguiculatus) being the most valuable model due to their high susceptibility to Giardia infection, abundant shedding of cysts, and pathophysiological alterations and signs of disease similar to those observed in humans. Here, we report cytokine and antibody profiles both during the course of Giardia infection in gerbils and after immunization with a novel oral vaccine comprising a mixture of purified variant-specific surface proteins (VSPs). Transcript levels of representative cytokines of different immune profiles as well as macro- and microtissue alterations were assessed in Peyer's patches, mesenteric lymph nodes, and spleens. During infection, cytokine responses showed a biphasic profile: an early induction of Th1 (gamma interferon [IFN-γ], interleukin-1β [IL-1β], IL-6, and tumor necrosis factor [TNF]), Th17 (IL-17), and Th2 (IL-4) cytokines, together with intestinal alterations typical of inflammation, followed by a shift toward a predominant Th2 (IL-5) response, likely associated with a counterregulatory mechanism. Conversely, immunization with an oral vaccine comprising the entire repertoire of VSPs specifically showed high levels of IL-17, IL-6, IL-4, and IL-5, without obvious signs of inflammation. Both immunized and infected animals developed local (intestinal secretory IgA [S-IgA]) and systemic (serum IgG) humoral immune responses against VSPs; however, only infected animals showed evident signs of giardiasis. This is the first comprehensive report of cytokine expression and anti-Giardia antibody production during infection and VSP vaccination in gerbils, a reliable model of the human disease.
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10
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Albarnaz JD, Torres AA, Smith GL. Modulating Vaccinia Virus Immunomodulators to Improve Immunological Memory. Viruses 2018; 10:E101. [PMID: 29495547 PMCID: PMC5869494 DOI: 10.3390/v10030101] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 02/21/2018] [Accepted: 02/22/2018] [Indexed: 12/14/2022] Open
Abstract
The increasing frequency of monkeypox virus infections, new outbreaks of other zoonotic orthopoxviruses and concern about the re-emergence of smallpox have prompted research into developing antiviral drugs and better vaccines against these viruses. This article considers the genetic engineering of vaccinia virus (VACV) to enhance vaccine immunogenicity and safety. The virulence, immunogenicity and protective efficacy of VACV strains engineered to lack specific immunomodulatory or host range proteins are described. The ultimate goal is to develop safer and more immunogenic VACV vaccines that induce long-lasting immunological memory.
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Affiliation(s)
- Jonas D Albarnaz
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK.
| | - Alice A Torres
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK.
| | - Geoffrey L Smith
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK.
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11
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Nam SJ, Kim ES, Jeen YT. T-cell immune response against cytomegalovirus in peripheral blood and colonic mucosa from ulcerative colitis and Crohn's disease patients. Intest Res 2018; 16:160-162. [PMID: 29422814 PMCID: PMC5797266 DOI: 10.5217/ir.2018.16.1.160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 11/19/2017] [Accepted: 11/20/2017] [Indexed: 11/09/2022] Open
Affiliation(s)
- Seung-Joo Nam
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Eun Sun Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Yoon Tae Jeen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
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12
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Select agent program impact on the IBC. ENSURING NATIONAL BIOSECURITY 2016. [PMCID: PMC7149598 DOI: 10.1016/b978-0-12-801885-9.00010-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Stringent, exacting and local oversight for the control and use of Select Agents and Toxins is crucial to ensuring biosecurity. However, review of research involving Select Agents and Toxins can present particular challenges to the Institutional Biosafety Committee (IBC). Institutional review for biosecurity programs focuses on security assessments and access control, whereas most IBCs primarily focus on occupational exposure assessment, biohazard control, and biosafety practices. Determining how and where to interweave biosecurity program requirements into programs based on occupational health priorities is the key to integrated and effective compliance management. Recent new or pending regulations on dual use or gain of function research suggests or mandates additional duties for the IBC. This chapter explores challenges and strategies for institutional oversight and support of Select Agent program compliance.
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13
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Temporal Characterization of Marburg Virus Angola Infection following Aerosol Challenge in Rhesus Macaques. J Virol 2015. [PMID: 26202230 DOI: 10.1128/jvi.01147-15] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
UNLABELLED Marburg virus (MARV) infection is a lethal hemorrhagic fever for which no licensed vaccines or therapeutics are available. Development of appropriate medical countermeasures requires a thorough understanding of the interaction between the host and the pathogen and the resulting disease course. In this study, 15 rhesus macaques were sequentially sacrificed following aerosol exposure to the MARV variant Angola, with longitudinal changes in physiology, immunology, and histopathology used to assess disease progression. Immunohistochemical evidence of infection and resulting histopathological changes were identified as early as day 3 postexposure (p.e.). The appearance of fever in infected animals coincided with the detection of serum viremia and plasma viral genomes on day 4 p.e. High (>10(7) PFU/ml) viral loads were detected in all major organs (lung, liver, spleen, kidney, brain, etc.) beginning day 6 p.e. Clinical pathology findings included coagulopathy, leukocytosis, and profound liver destruction as indicated by elevated liver transaminases, azotemia, and hypoalbuminemia. Altered cytokine expression in response to infection included early increases in Th2 cytokines such as interleukin 10 (IL-10) and IL-5 and late-stage increases in Th1 cytokines such as IL-2, IL-15, and granulocyte-macrophage colony-stimulating factor (GM-CSF). This study provides a longitudinal examination of clinical disease of aerosol MARV Angola infection in the rhesus macaque model. IMPORTANCE In this study, we carefully analyzed the timeline of Marburg virus infection in nonhuman primates in order to provide a well-characterized model of disease progression following aerosol exposure.
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Johnston SC, Johnson JC, Stonier SW, Lin KL, Kisalu NK, Hensley LE, Rimoin AW. Cytokine modulation correlates with severity of monkeypox disease in humans. J Clin Virol 2015; 63:42-5. [PMID: 25600603 PMCID: PMC9533885 DOI: 10.1016/j.jcv.2014.12.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 12/01/2014] [Accepted: 12/02/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Human monkeypox is a zoonotic disease endemic to parts of Africa. Similar to other orthopoxviruses, virus and host have considerable interactions through immunomodulation. These interactions likely drive the establishment of a productive infection and disease progression, resulting in the range of disease presentations and case fatality rates observed for members of the Orthopoxvirus genus. OBJECTIVES Much of our understanding about the immune response to orthopoxvirus infection comes from either in vitro or in vivo studies performed in small animals or non-human primates. Here, we conducted a detailed assessment of cytokine responses to monkeypox virus using serum from acutely ill humans collected during monkeypox active disease surveillance (2005-2007) in the Democratic Republic of the Congo. STUDY DESIGN Nineteen serum samples that were from patients with confirmed monkeypox virus infections were selected for cytokine profiling. Cytokine profiling was performed on the Bio-Rad Bioplex 100 system using a 30-plex human cytokine panel. RESULTS Cytokine profiling revealed elevated cytokine concentrations in all samples. Overproduction of certain cytokines (interleukin [IL]-2R, IL-10, and granulocyte macrophage-colony stimulating factor were observed in patients with serious disease (defined as >250 lesions based on the World Health Organization scoring system). CONCLUSIONS The data suggest that cytokine modulation affects monkeypox disease severity in humans.
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Affiliation(s)
- Sara C Johnston
- Virology Division, United States Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Fort Detrick, MD 21702, USA
| | - Joshua C Johnson
- Virology Division, United States Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Fort Detrick, MD 21702, USA
| | - Spencer W Stonier
- Virology Division, United States Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Fort Detrick, MD 21702, USA
| | - Kenny L Lin
- Virology Division, United States Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Fort Detrick, MD 21702, USA
| | - Neville K Kisalu
- Department of Microbiology, Immunology, and Molecular Genetics, UCLA, 609 Charles E. Young Dr. East, 1602 Molecular Science Building, Los Angeles, CA 90095, USA
| | - Lisa E Hensley
- Virology Division, United States Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Fort Detrick, MD 21702, USA
| | - Anne W Rimoin
- Department of Epidemiology, UCLA School of Public Health, 650 Charles E. Young Dr. South, Los Angeles, CA 90024, USA.
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15
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Progress in oncolytic virotherapy for the treatment of thyroid malignant neoplasm. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2014; 33:91. [PMID: 25366264 PMCID: PMC4242545 DOI: 10.1186/s13046-014-0091-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 10/22/2014] [Indexed: 01/05/2023]
Abstract
Thyroid malignant neoplasm develops from follicular or parafollicular thyroid cells. A higher proportion of anaplastic thyroid cancer has an adverse prognosis. New drugs are being used in clinical treatment. However, for advanced thyroid malignant neoplasm such as anaplastic thyroid carcinoma, the major impediment to successful control of the disease is the absence of effective therapies. Oncolytic virotherapy has significantly progressed as therapeutics in recent years. The advance is that oncolytic viruses can be designed with biological specificity to infect, replicate and lyse tumor cells. Significant advances in virotherapy have being achieved to improve the accessibility, safety and efficacy of the treatment. Therefore, it is necessary to summarize and bring together the main areas covered by these investigations for the virotherapy of thyroid malignant neoplasm. We provide an overview of the progress in virotherapy research and clinical trials, which employ virotherapy for thyroid malignant neoplasm as well as the future prospect for virotherapy of thyroid malignant neoplasms.
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16
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Skinner MA, Laidlaw SM, Eldaghayes I, Kaiser P, Cottingham MG. Fowlpox virus as a recombinant vaccine vector for use in mammals and poultry. Expert Rev Vaccines 2014; 4:63-76. [PMID: 15757474 DOI: 10.1586/14760584.4.1.63] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Live vaccines against fowlpox virus, which causes moderate pathology in poultry and is the type species of the Avipoxvirus genus, were developed in the 1920s. Development of recombinant fowlpox virus vector vaccines began in the 1980s, for use not only in poultry, but also in mammals including humans. In common with other avipoxviruses, such as canarypox virus, fowlpox virus enters mammalian cells and expresses proteins, but replicates abortively. The use of fowlpox virus as a safe vehicle for expression of foreign antigens and host immunomodulators, is being evaluated in numerous clinical trials of vaccines against cancer, malaria, tuberculosis and AIDS, notably in heterologous prime-boost regimens. In this article, technical approaches to, and issues surrounding, the use of fowlpox virus as a recombinant vaccine vector in poultry and mammals are reviewed.
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Affiliation(s)
- Michael A Skinner
- Institute for Animal Health, Compton, Newbury, Berkshire, RG20 7NN, UK.
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17
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Holechek SA, Denzler KL, Heck MC, Schriewer J, Buller RM, Legrand FA, Verardi PH, Jones LA, Yilma T, Jacobs BL. Use of a recombinant vaccinia virus expressing interferon gamma for post-exposure protection against vaccinia and ectromelia viruses. PLoS One 2013; 8:e77879. [PMID: 24147092 PMCID: PMC3798613 DOI: 10.1371/journal.pone.0077879] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 09/05/2013] [Indexed: 12/26/2022] Open
Abstract
Post-exposure vaccination with vaccinia virus (VACV) has been suggested to be effective in minimizing death if administered within four days of smallpox exposure. While there is anecdotal evidence for efficacy of post-exposure vaccination this has not been definitively studied in humans. In this study, we analyzed post-exposure prophylaxis using several attenuated recombinant VACV in a mouse model. A recombinant VACV expressing murine interferon gamma (IFN-γ) was most effective for post-exposure protection of mice infected with VACV and ectromelia virus (ECTV). Untreated animals infected with VACV exhibited severe weight loss and morbidity leading to 100% mortality by 8 to 10 days post-infection. Animals treated one day post-infection had milder symptoms, decreased weight loss and morbidity, and 100% survival. Treatment on days 2 or 3 post-infection resulted in 40% and 20% survival, respectively. Similar results were seen in ECTV-infected mice. Despite the differences in survival rates in the VACV model, the viral load was similar in both treated and untreated mice while treated mice displayed a high level of IFN-γ in the serum. These results suggest that protection provided by IFN-γ expressed by VACV may be mediated by its immunoregulatory activities rather than its antiviral effects. These results highlight the importance of IFN-γ as a modulator of the immune response for post-exposure prophylaxis and could be used potentially as another post-exposure prophylaxis tool to prevent morbidity following infection with smallpox and other orthopoxviruses.
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Affiliation(s)
- Susan A. Holechek
- Center for Infectious Diseases and Vaccinology, The Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - Karen L. Denzler
- Center for Infectious Diseases and Vaccinology, The Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - Michael C. Heck
- Center for Infectious Diseases and Vaccinology, The Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - Jill Schriewer
- Department of Molecular Microbiology and Immunology, Saint Louis University Health Sciences Center, St. Louis, Missouri, United States of America
| | - R. Mark Buller
- Department of Molecular Microbiology and Immunology, Saint Louis University Health Sciences Center, St. Louis, Missouri, United States of America
| | - Fatema A. Legrand
- International Laboratory of Molecular Biology for Tropical Disease Agents, School of Veterinary Medicine, Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, California, United States of America
| | - Paulo H. Verardi
- Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs, Connecticut, United States of America
| | - Leslie A. Jones
- International Laboratory of Molecular Biology for Tropical Disease Agents, School of Veterinary Medicine, Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, California, United States of America
| | - Tilahun Yilma
- International Laboratory of Molecular Biology for Tropical Disease Agents, School of Veterinary Medicine, Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, California, United States of America
| | - Bertram L. Jacobs
- Center for Infectious Diseases and Vaccinology, The Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
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18
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Smith GL, Benfield CTO, Maluquer de Motes C, Mazzon M, Ember SWJ, Ferguson BJ, Sumner RP. Vaccinia virus immune evasion: mechanisms, virulence and immunogenicity. J Gen Virol 2013; 94:2367-2392. [PMID: 23999164 DOI: 10.1099/vir.0.055921-0] [Citation(s) in RCA: 248] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Virus infection of mammalian cells is sensed by pattern recognition receptors and leads to an innate immune response that restricts virus replication and induces adaptive immunity. In response, viruses have evolved many countermeasures that enable them to replicate and be transmitted to new hosts, despite the host innate immune response. Poxviruses, such as vaccinia virus (VACV), have large DNA genomes and encode many proteins that are dedicated to host immune evasion. Some of these proteins are secreted from the infected cell, where they bind and neutralize complement factors, interferons, cytokines and chemokines. Other VACV proteins function inside cells to inhibit apoptosis or signalling pathways that lead to the production of interferons and pro-inflammatory cytokines and chemokines. In this review, these VACV immunomodulatory proteins are described and the potential to create more immunogenic VACV strains by manipulation of the gene encoding these proteins is discussed.
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Affiliation(s)
- Geoffrey L Smith
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Camilla T O Benfield
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | | | - Michela Mazzon
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Stuart W J Ember
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Brian J Ferguson
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Rebecca P Sumner
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
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19
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Wijesundara DK, Jackson RJ, Tscharke DC, Ranasinghe C. IL-4 and IL-13 mediated down-regulation of CD8 expression levels can dampen anti-viral CD8+ T cell avidity following HIV-1 recombinant pox viral vaccination. Vaccine 2013; 31:4548-55. [DOI: 10.1016/j.vaccine.2013.07.062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 07/02/2013] [Accepted: 07/25/2013] [Indexed: 01/23/2023]
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20
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Wijesundara DK, Tscharke DC, Jackson RJ, Ranasinghe C. Reduced interleukin-4 receptor α expression on CD8+ T cells correlates with higher quality anti-viral immunity. PLoS One 2013; 8:e55788. [PMID: 23383283 PMCID: PMC3561338 DOI: 10.1371/journal.pone.0055788] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 12/31/2012] [Indexed: 11/18/2022] Open
Abstract
With the hope of understanding how interleukin (IL)-4 and IL-13 modulated quality of anti-viral CD8+ T cells, we evaluated the expression of receptors for these cytokines following a range of viral infections (e.g. pox viruses and influenza virus). Results clearly indicated that unlike other IL-4/IL-13 receptor subunits, IL-4 receptor α (IL-4Rα) was significantly down-regulated on anti-viral CD8+ T cells in a cognate antigen dependent manner. The infection of gene knockout mice and wild-type (WT) mice with vaccinia virus (VV) or VV expressing IL-4 confirmed that IL-4, IL-13 and signal transducer and activator of transcription 6 (STAT6) were required to increase IL-4Rα expression on CD8+ T cells, but not interferon (IFN)-γ. STAT6 dependent elevation of IL-4Rα expression on CD8+ T cells was a feature of poor quality anti-viral CD8+ T cell immunity as measured by the production of IFN-γ and tumor necrosis factor α (TNF-α) in response to VV antigen stimulation in vitro. We propose that down-regulation of IL-4Rα, but not the other IL-4/IL-13 receptor subunits, is a mechanism by which CD8+ T cells reduce responsiveness to IL-4 and IL-13. This can improve the quality of anti-viral CD8+ T cell immunity. Our findings have important implications in understanding anti-viral CD8+ T cell immunity and designing effective vaccines against chronic viral infections.
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Affiliation(s)
- Danushka K Wijesundara
- The Molecular Mucosal Vaccine Immunology Group, The Department of Immunology, The John Curtin School of Medical Research, The Australian National University, Acton, Canberra, Australia.
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21
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Kennedy RB, Ovsyannikova IG, Pankratz VS, Haralambieva IH, Vierkant RA, Poland GA. Genome-wide analysis of polymorphisms associated with cytokine responses in smallpox vaccine recipients. Hum Genet 2012; 131:1403-21. [PMID: 22610502 DOI: 10.1007/s00439-012-1174-2] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Accepted: 04/23/2012] [Indexed: 01/08/2023]
Abstract
The role that genetics play in response to infection or disease is becoming increasingly clear as we learn more about immunogenetics and host-pathogen interactions. Here we report a genome-wide analysis of the effects of host genetic variation on cytokine responses to vaccinia virus stimulation in smallpox vaccine recipients. Our data show that vaccinia stimulation of immune individuals results in secretion of inflammatory and Th1 cytokines. We identified multiple SNPs significantly associated with variations in cytokine secretion. These SNPs are found in genes with known immune function, as well as in genes encoding for proteins involved in signal transduction, cytoskeleton, membrane channels and ion transport, as well as others with no previously identified connection to immune responses. The large number of significant SNP associations implies that cytokine secretion in response to vaccinia virus is a complex process controlled by multiple genes and gene families. Follow-up studies to replicate these findings and then pursue mechanistic studies will provide a greater understanding of how genetic variation influences vaccine responses.
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Affiliation(s)
- Richard B Kennedy
- Mayo Vaccine Research Group, Mayo Clinic, Guggenheim 611C, Rochester, MN 55905, USA
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22
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Feng Y, Guo S, Jiang T, Han X, Liu P, Wu T, Luo Y. Active immunization against Pneumocystis carinii with p55-v3 DNA vaccine in rats. Can J Microbiol 2011; 57:375-81. [PMID: 21529125 DOI: 10.1139/w11-023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Pneumocystis pneumonia (PCP) occurs predominately in patients with impaired immunity. Because standard PCP chemoprophylaxis and chemotherapies have limitations, immunotherapy, particularly vaccination, offers an attractive alternative approach for PCP prevention and treatment. The goal of this study was to evaluate the potential of DNA vaccines targeting two closely related antigens, p55-v0 and p55-v3, in an immunosuppressed rat PCP model. We found that immunization with p55-v0 and p55-v3 DNA vaccines afforded a similar level of protection to rats against PCP, as evidenced by significant reductions in organism burdens, improved histological scores, and lower lung weight to body weight ratios. Additionally, vaccination elicited both cellular and humoral immunity in immunosuppressed rats. Our data suggest the potential of p55 DNA vaccines to protect against PCP in rats. Future work should focus on epitope mapping and identifying protective moieties in each gene.
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Affiliation(s)
- Yanmei Feng
- Department of Respiratory Medicine, The First Affiliated Hospital of Chongqing Medical University, People's Republic of China
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23
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Rehm KE, Roper RL. Deletion of the A35 gene from Modified Vaccinia Virus Ankara increases immunogenicity and isotype switching. Vaccine 2011; 29:3276-83. [PMID: 21352940 DOI: 10.1016/j.vaccine.2011.02.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Revised: 01/31/2011] [Accepted: 02/07/2011] [Indexed: 11/28/2022]
Abstract
We show here that the immunogenicity of the Modified Vaccinia Ankara MVA vaccine strain can be improved by deletion of the A35 gene, without diminishing the ability of the virus to replicate. Deletion of the A35 gene resulted in increased virus-specific immunoglobulin production, class switching to IgG isotypes, and virus-specific IFNγ-secreting splenocytes. The MVA35 deletion virus provided excellent protective efficacy against virulent virus challenge. These results suggest that A35 deletion mutant strains will have superior vaccine performance for poxvirus vaccines as well as platform vaccines for other infectious diseases and cancer.
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Affiliation(s)
- Kristina E Rehm
- East Carolina University, Brody School of Medicine, 600 Moye Blvd, 5E106A, Department of Microbiology & Immunology, Greenville, NC 27834, United States
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24
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Chen N, Bellone CJ, Schriewer J, Owens G, Fredrickson T, Parker S, Buller RML. Poxvirus interleukin-4 expression overcomes inherent resistance and vaccine-induced immunity: pathogenesis, prophylaxis, and antiviral therapy. Virology 2010; 409:328-37. [PMID: 21071055 DOI: 10.1016/j.virol.2010.10.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 09/14/2010] [Accepted: 10/12/2010] [Indexed: 10/18/2022]
Abstract
In 2001, Jackson et al. reported that murine IL-4 expression by a recombinant ectromelia virus caused enhanced morbidity and lethality in resistant C57BL/6 mice as well as overcame protective immune memory responses. To achieve a more thorough understanding of this phenomenon and to assess a variety of countermeasures, we constructed a series of ECTV recombinants encoding murine IL-4 under the control of promoters of different strengths and temporal regulation. We showed that the ECTV-IL-4 recombinant expressing the highest level of IL-4 was uniformly lethal for C57BL/6 mice even when previously immunized. The lethality of the ECTV-IL-4 recombinants resulted from virus-expressed IL-4 signaling through the IL-4 receptor but was not due to IL-4 toxicity. A number of treatment approaches were evaluated against the most virulent IL-4 encoding virus. The most efficacious therapy was a combination of two antiviral drugs (CMX001(®) and ST-246(®)) that have different mechanisms of action.
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Affiliation(s)
- Nanhai Chen
- Genelux Corporation, San Diego Science Center, 3030 Bunker Hill Street, Suite 310, San Diego, CA 92109, USA
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25
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Mott KR, Wechsler SL, Ghiasi H. Ocular infection of mice with an avirulent recombinant HSV-1 expressing IL-4 and an attenuated HSV-1 strain generates virulent recombinants in vivo. Mol Vis 2010; 16:2153-62. [PMID: 21139679 PMCID: PMC2994333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Accepted: 10/14/2010] [Indexed: 11/04/2022] Open
Abstract
PURPOSE To assess the relative impact of overexpression of interleukin 2 (IL-2), interleukin 4 (IL-4), and interferon gamma (IFN-γ) expressing recombinant herpes simplex virus type 1 (HSV-1) on altering immune responses in ocularly infected mice. METHODS BALB/c mice were co-infected ocularly with avirulent HSV-1 strain KOS and avirulent recombinant HSV-1 expressing murine IL-4 (HSV-IL-4). Controls mice were co-infected with KOS+HSV-IL-2 or KOS+HSV-IFNγ. Following ocular infection, virus replication in the eye, corneal scarring (CS), and survival were determined. We also isolated recombinant viruses from eye and trigeminal ganglia of KOS+HSV-IL-4 infected mice. RESULTS In this study we found that ocular infection of BALB/c mice with a mixture of HSV-IL-4 and KOS resulted in increased death and increased eye disease. In contrast, when mice were infected in one eye with KOS and the other eye with HSV-IL-4 no death or eye disease was seen. Intraperitoneal co-infection of mice with KOS and HSV-IL-4 also did not result in HSV-1 induced death. Interestingly, ocular infection of mice with a mixture of HSV-IL-2 and KOS did not have any effect on severity of the disease in infected mice. We isolated recombinant viruses from KOS+HSV-IL-4 infected mice eye and trigeminal ganglia. Some of the isolated viruses were more neurovirulent then either parental virus. Infection of macrophages with IL-4 expressing virus down-regulated IL-12 production by macrophages. CONCLUSIONS These results suggest a role for IL-4 in suppression of immune response and generation of virulent viruses in vivo.
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Affiliation(s)
- Kevin R. Mott
- Center for Neurobiology and Vaccine Development, Ophthalmology Research Laboratories, CSMC Burns & Allen Research Institute, Los Angeles, CA
| | - Steven L. Wechsler
- Virology Research, The Gavin S. Herbert Eye Institute, University of California Irvine, Irvine, CA,Department of Microbiology and Molecular Genetics, University of California Irvine, Irvine, CA,The Center for Virus Research, University of California Irvine, Irvine, CA
| | - Homayon Ghiasi
- Center for Neurobiology and Vaccine Development, Ophthalmology Research Laboratories, CSMC Burns & Allen Research Institute, Los Angeles, CA
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Freyschmidt EJ, Mathias CB, Diaz N, MacArthur DH, Laouar A, Manjunath N, Hofer MD, Wurbel MA, Campbell JJ, Chatila TA, Oettgen HC. Skin inflammation arising from cutaneous regulatory T cell deficiency leads to impaired viral immune responses. THE JOURNAL OF IMMUNOLOGY 2010; 185:1295-302. [PMID: 20548030 DOI: 10.4049/jimmunol.0903144] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Individuals with atopic dermatitis immunized with the small pox vaccine, vaccinia virus (VV), are susceptible to eczema vaccinatum (EV), a potentially fatal disseminated infection. Dysfunction of Forkhead box P3 (FoxP3)-positive regulatory T cells (Treg) has been implicated in the pathogenesis of atopic dermatitis. To test whether Treg deficiency predisposes to EV, we percutaneously VV infected FoxP3-deficient (FoxP3(KO)) mice, which completely lack FoxP3(+) Treg. These animals generated both fewer VV-specific CD8(+) effector T cells and IFN-gamma-producing CD8(+) T cells than controls, had higher viral loads, and exhibited abnormal Th2-polarized responses to the virus. To focus on the consequences of Treg deficiency confined to the skin, we generated mixed CCR4(KO) FoxP3(KO) bone marrow (CCR4/FoxP3) chimeras in which skin, but not other tissues or central lymphoid organs, lack Treg. Like FoxP3(KO) mice, the chimeras had impaired VV-specific effector T cell responses and higher viral loads. Skin cytokine expression was significantly altered in infected chimeras compared with controls. Levels of the antiviral cytokines, type I and II IFNs and IL-12, were reduced, whereas expression of the proinflammatory cytokines, IL-6, IL-10, TGF-beta, and IL-23, was increased. Importantly, infection of CCR4/FoxP3 chimeras by a noncutaneous route (i.p.) induced immune responses comparable to controls. Our findings implicate allergic skin inflammation resulting from local Treg deficiency in the pathogenesis of EV.
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Affiliation(s)
- Eva-Jasmin Freyschmidt
- Division of Immunology, Department of Medicine, Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
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Zhao L, Toriumi H, Kuang Y, Chen H, Fu ZF. The roles of chemokines in rabies virus infection: overexpression may not always be beneficial. J Virol 2009; 83:11808-18. [PMID: 19740983 PMCID: PMC2772667 DOI: 10.1128/jvi.01346-09] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2009] [Accepted: 08/31/2009] [Indexed: 12/24/2022] Open
Abstract
It was found previously that induction of innate immunity, particularly chemokines, is an important mechanism of rabies virus (RABV) attenuation. To evaluate the effect of overexpression of chemokines on RABV infection, chemokines macrophage inflammatory protein 1alpha (MIP-1alpha), RANTES, and IP-10 were individually cloned into the genome of attenuated RABV strain HEP-Flury. These recombinant RABVs were characterized in vitro for growth properties and expression of chemokines. It was found that all the recombinant viruses grew as well as the parent virus, and each of the viruses expressed the intended chemokine in a dose-dependent manner. When these viruses were evaluated for pathogenicity in the mouse model, it was found that overexpression of MIP-1alpha further decreased RABV pathogenicity by inducing a transient innate immune response. In contrast, overexpression of RANTES or IP-10 increased RABV pathogenicity by causing neurological diseases, which is due to persistent and high-level expression of chemokines, excessive infiltration and accumulation of inflammatory cells in the central nervous system, and severe enhancement of blood-brain barrier permeability. These studies indicate that overexpression of chemokines, although important in controlling virus infection, may not always be beneficial to the host.
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Affiliation(s)
- Ling Zhao
- Departments of Pathology, Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia 30602, State-Key Laboratory of Agricultural Microbiology, Department of Preventive Veterinary, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Harufusa Toriumi
- Departments of Pathology, Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia 30602, State-Key Laboratory of Agricultural Microbiology, Department of Preventive Veterinary, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yi Kuang
- Departments of Pathology, Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia 30602, State-Key Laboratory of Agricultural Microbiology, Department of Preventive Veterinary, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Huanchun Chen
- Departments of Pathology, Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia 30602, State-Key Laboratory of Agricultural Microbiology, Department of Preventive Veterinary, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhen F. Fu
- Departments of Pathology, Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia 30602, State-Key Laboratory of Agricultural Microbiology, Department of Preventive Veterinary, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
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Jacobs BL, Langland JO, Kibler KV, Denzler KL, White SD, Holechek SA, Wong S, Huynh T, Baskin CR. Vaccinia virus vaccines: past, present and future. Antiviral Res 2009; 84:1-13. [PMID: 19563829 PMCID: PMC2742674 DOI: 10.1016/j.antiviral.2009.06.006] [Citation(s) in RCA: 170] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Revised: 05/30/2009] [Accepted: 06/04/2009] [Indexed: 12/23/2022]
Abstract
Vaccinia virus (VACV) has been used more extensively for human immunization than any other vaccine. For almost two centuries, VACV was employed to provide cross-protection against variola virus, the causative agent of smallpox, until the disease was eradicated in the late 1970s. Since that time, continued research on VACV has produced a number of modified vaccines with improved safety profiles. Attenuation has been achieved through several strategies, including sequential passage in an alternative host, deletion of specific genes or genetic engineering of viral genes encoding immunomodulatory proteins. Some highly attenuated third- and fourth-generation VACV vaccines are now being considered for stockpiling against a possible re-introduction of smallpox through bioterrorism. Researchers have also taken advantage of the ability of the VACV genome to accommodate additional genetic material to produce novel vaccines against a wide variety of infectious agents, including a recombinant VACV encoding the rabies virus glycoprotein that is administered orally to wild animals. This review provides an in-depth examination of these successive generations of VACV vaccines, focusing on how the understanding of poxviral replication and viral gene function permits the deliberate modification of VACV immunogenicity and virulence.
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Affiliation(s)
- Bertram L Jacobs
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-5401, USA.
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29
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Vaccinia virus inoculation in sites of allergic skin inflammation elicits a vigorous cutaneous IL-17 response. Proc Natl Acad Sci U S A 2009; 106:14954-9. [PMID: 19706451 DOI: 10.1073/pnas.0904021106] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Eczema vaccinatum (EV) is a complication of smallpox vaccination occurring in patients with atopic dermatitis. In affected individuals, vaccinia virus (VV) spreads through the skin, resulting in large primary lesions and satellite lesions, and infects internal organs. BALB/c mice inoculated with VV at sites of Th2-biased allergic skin inflammation elicited by epicutaneous ovalbumin (OVA) sensitization exhibited larger primary lesions that were erosive, more satellite lesions, and higher viral loads in skin and internal organs than mice inoculated in saline-exposed skin, unsensitized skin, or skin sites with Th1-dominant inflammation. VV inoculation in OVA-sensitized skin induced marked local expression of IL-17 transcripts and massive neutrophil infiltration compared to VV inoculation in saline-exposed skin. Treatment with anti-IL-17 decreased the size of primary lesions, numbers of satellite lesions, and viral loads. Addition of IL-17 promoted VV replication in skin explants. These results suggest that IL-17 may be a potential therapeutic target in EV.
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Calarota SA, Dai A, Trocio JN, Weiner DB, Lori F, Lisziewicz J. IL-15 as memory T-cell adjuvant for topical HIV-1 DermaVir vaccine. Vaccine 2008; 26:5188-95. [PMID: 18462844 DOI: 10.1016/j.vaccine.2008.03.067] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
IL-7 and IL-15 are key cytokines involved in the generation and maintenance of memory CD8+ T-cells. We evaluated these cytokines as molecular adjuvants for topical HIV-1 DermaVir vaccine. We found that mice receiving DermaVir formulated with HIV-1 Gag plasmid in the presence of IL-7- or IL-15-encoding plasmid significantly enhanced Gag-specific central memory T-cells, as measured by a peptide-based cultured IFN-gamma ELISPOT. Additionally, IL-15 significantly improved DermaVir-induced Gag-specific effector memory CD8+ T-cell responses, measured by standard IFN-gamma ELISPOT. In a DermaVir prime/vaccinia vector boost regimen, the inclusion of IL-15 together with DermaVir significantly improved Gag-specific effector memory T-cell responses. Our study demonstrates that IL-15 is more potent than IL-7 in enhancing HIV-1-specific central memory T-cells induced by topical DermaVir. IL-15 adjuvanted DermaVir might be an alternative prime in a prophylactic vaccine regimen.
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Affiliation(s)
- Sandra A Calarota
- Research Institute for Genetic and Human Therapy (RIGHT), 27100 Pavia, Italy
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Grosenbach DW, Jordan R, King DS, Berhanu A, Warren TK, Kirkwood-Watts DL, Tyavanagimatt S, Tan Y, Wilson RL, Jones KF, Hruby DE. Immune responses to the smallpox vaccine given in combination with ST-246, a small-molecule inhibitor of poxvirus dissemination. Vaccine 2007; 26:933-46. [PMID: 18226434 PMCID: PMC2757089 DOI: 10.1016/j.vaccine.2007.11.095] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2007] [Revised: 10/26/2007] [Accepted: 11/29/2007] [Indexed: 11/24/2022]
Abstract
The re-emerging threat of smallpox and the emerging threat of monkeypox highlight the need for effective poxvirus countermeasures. Currently approved smallpox vaccines have unacceptable safety profiles and, consequently, the general populace is no longer vaccinated, leading to an increasingly susceptible population. ST-246, a small-molecule inhibitor of poxvirus dissemination, has been demonstrated in various animal models to be safe and effective in preventing poxviral disease. This suggests that it may also be used to improve the safety of the traditional smallpox vaccine provided that it does not inhibit vaccine-induced protective immunity. In this study, we compared the immune responses elicited by the smallpox vaccine alone or in combination with ST-246 in mice. Normal lesion formation following dermal scarification with the attenuated New York City Board of Health strain (Dryvax), commonly referred to as a vaccine “take”, was not inhibited although severe lesions and systemic disease due to vaccination with the virulent Western Reserve (VV-WR) strain were prevented. The vaccine given with ST-246 did not affect cellular immune responses or neutralizing antibody titers although anti-vaccinia ELISA titers were slightly reduced. Vaccination in combination with ST-246 provided equivalent short- and long-term protection against lethal intranasal challenge with VV-WR when compared to vaccine alone. These results suggest that ST-246 does not compromise protective immunity elicited by the vaccine and provide the basis for future studies examining the efficacy of ST-246 in preventing or treating adverse events due to vaccination.
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Affiliation(s)
- Douglas W Grosenbach
- SIGA Technologies, 4575 SW Research Way, Suite 230, Corvallis, OR 97333, United States
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Baschuk N, Utermöhlen O, Gugel R, Warnecke G, Karow U, Paulsen D, Brombacher F, Krönke M, Deppert W. Interleukin-4 impairs granzyme-mediated cytotoxicity of Simian virus 40 large tumor antigen-specific CTL in BALB/c mice. Cancer Immunol Immunother 2007; 56:1625-36. [PMID: 17431618 PMCID: PMC11030854 DOI: 10.1007/s00262-007-0309-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2006] [Accepted: 02/26/2007] [Indexed: 11/25/2022]
Abstract
In this report we analyzed the impact of interleukin-4 (IL-4) on tumor-associated simian virus 40 (SV40) large T-antigen (TAg)-specific CD8+ cytotoxic T cells during rejection of syngeneic SV40 transformed mKSA tumor cells in BALB/c mice. Strikingly, challenge of naïve mice with low doses of mKSA tumor cells revealed a CD8+ T cell-dependent prolonged survival time of naïve IL-4-/- mice. In mice immunized with SV40 TAg we observed in IL-4-/- mice, or in wild type mice treated with neutralizing anti-IL-4 monoclonal antibody, a strongly enhanced TAg-specific cytotoxicity of tumor associated CD8+ T cells. The enhanced cytotoxicity in IL-4-/- mice was accompanied by a significant increase in the fraction of CD8+ tumor associated T-cells expressing the cytotoxic effector molecules granzyme A and B and in granzyme B-specific enzymatic activity. The data suggest that endogenous IL-4 can suppress the generation of CD8+ CTL expressing cytotoxic effector molecules especially when the antigen induces only a very weak CTL response.
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MESH Headings
- Animals
- Antibodies, Monoclonal/pharmacology
- Antigens, Polyomavirus Transforming/immunology
- Antigens, Viral, Tumor/immunology
- Cell Line, Transformed
- Cytotoxicity, Immunologic/genetics
- Granzymes/metabolism
- Interleukin-4/antagonists & inhibitors
- Interleukin-4/genetics
- Interleukin-4/physiology
- Mice
- Mice, Inbred BALB C
- Mice, Mutant Strains
- Neoplasms/immunology
- T-Lymphocytes, Cytotoxic/enzymology
- T-Lymphocytes, Cytotoxic/immunology
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Affiliation(s)
- Nikola Baschuk
- Institute for Medical Microbiology, Immunology und Hygiene, Medical Center of the University of Cologne, 50935 Cologne, Germany
| | - Olaf Utermöhlen
- Institute for Medical Microbiology, Immunology und Hygiene, Medical Center of the University of Cologne, 50935 Cologne, Germany
| | - Roland Gugel
- Heinrich-Pette-Institute for Experimental Virology and Immunology, University of Hamburg, 20251 Hamburg, Germany
- Present Address: PolyGene AG, 8153 Rümlang, Switzerland
| | - Gabriele Warnecke
- Heinrich-Pette-Institute for Experimental Virology and Immunology, University of Hamburg, 20251 Hamburg, Germany
| | - Ulrike Karow
- Institute for Medical Microbiology, Immunology und Hygiene, Medical Center of the University of Cologne, 50935 Cologne, Germany
| | - Daniela Paulsen
- Heinrich-Pette-Institute for Experimental Virology and Immunology, University of Hamburg, 20251 Hamburg, Germany
- Present Address: AiCuris GmbH & Co. KG, Aprather Weg 18a / Geb. 405, 42113 Wuppertal, Germany
| | - Frank Brombacher
- Institute for Infectious Diseases and Molecular Medicine (IIDMM), University of Cape Town, 7925 Cape Town, South Africa
| | - Martin Krönke
- Institute for Medical Microbiology, Immunology und Hygiene, Medical Center of the University of Cologne, 50935 Cologne, Germany
- Center for Molecular Medicine, University of Cologne, 50935 Cologne, Germany
| | - Wolfgang Deppert
- Heinrich-Pette-Institute for Experimental Virology and Immunology, University of Hamburg, 20251 Hamburg, Germany
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Scott JE, ElKhal A, Freyschmidt EJ, MacArthur DH, McDonald D, Howell MD, Leung DYM, Laouar A, Manjunath N, Bianchi T, Boes M, Oettgen HC, Geha RS. Impaired immune response to vaccinia virus inoculated at the site of cutaneous allergic inflammation. J Allergy Clin Immunol 2007; 120:1382-8. [PMID: 17889291 DOI: 10.1016/j.jaci.2007.08.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2007] [Revised: 07/30/2007] [Accepted: 08/01/2007] [Indexed: 10/22/2022]
Abstract
BACKGROUND Patients with atopic dermatitis (AD) exposed to the vaccinia virus (VV) smallpox vaccine have an increased risk of developing eczema vaccinatum. OBJECTIVE To investigate the effects of local allergic skin inflammation on vaccinia immunity. METHODS BALB/c mice were epicutaneously sensitized with ovalbumin (OVA) to induce allergic skin inflammation or with saline control, then inoculated with an attenuated VV strain by skin scarification or intraperitoneally. After 8 days, serum IgG anti-VV and cytokine secretion by splenocytes were measured. RESULTS Mice inoculated with VV at sites of epicutaneous sensitization with OVA, but not control mice inoculated at saline exposed sites, developed satellite pox lesions and had impaired secretion of T(H)1 cytokines in response to VV, decreased VV specific serum IgG(2a), increased VV specific serum IgG(1), and impaired upregulation of IFN-alpha, but not the cathelicidin-related antimicrobial peptide, at the infection site. The VV immune response of OVA-sensitized mice inoculated with VV at distant skin sites or intraperitoneally was normal. CONCLUSION Local immune dysregulation at sites of allergic skin inflammation underlies the impaired T(H)1 immune response to VV introduced at these sites and the increased susceptibility to develop satellite pox lesions, a characteristic of eczema vaccinatum in patients with AD. CLINICAL IMPLICATIONS In a mouse model of AD, inoculation of VV at inflamed skin sites is associated with increased numbers of satellite pox lesions and an abnormal immune response to the virus. This may contribute to the susceptibility of patients with AD to virus dissemination after smallpox vaccination.
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Affiliation(s)
- Jordan E Scott
- Department of Pediatrics, Division of Allergy and Immunology, Children's Hospital, Harvard Medical School, Boston, MA, USA
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Mitra-Kaushik S, Cruz J, Stern LJ, Ennis FA, Terajima M. Human cytotoxic CD4+ T cells recognize HLA-DR1-restricted epitopes on vaccinia virus proteins A24R and D1R conserved among poxviruses. THE JOURNAL OF IMMUNOLOGY 2007; 179:1303-12. [PMID: 17617623 DOI: 10.4049/jimmunol.179.2.1303] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We previously demonstrated that vaccinia virus (VV)-specific CD4(+) cytolytic T cells can persist for >50 years after immunization against smallpox in the absence of re-exposure to VV. Nevertheless, there have been few studies focusing on CD4(+) T cell responses to smallpox vaccination. To ensure successful vaccination, a candidate vaccine should contain immunodominant CD4(+) T cell epitopes as well as CD8(+) T and B cell epitopes. In the present study, we established cytotoxic CD4(+) T cell lines from VV-immune donors, which recognize epitopes in VV proteins D1R and A24R in association with HLA-DR1 Ags. Comparisons of sequences between different members of the poxvirus family show that both epitopes are completely conserved among VV, variola viruses, and most mammalian poxviruses, including monkeypox, cowpox, and ectromelia. The CD4(+) T cell lines lysed VV-infected, Ag- and peptide-pulsed targets, and the lysis was inhibited by concanamycin A. We also detected these peptide-specific cytolytic and IFN-gamma-producing CD4(+) T cells in short-term bulk cultures of PBMC from each of the three VV-immune donors tested. These are the first VV-specific CD4(+) T cell epitopes identified in humans restricted by one of the most common MHC class II molecules, HLA-DR1, and this information may be useful in analyzing CD4(+) T cell responses to pre-existing or new generation VV vaccines against smallpox.
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Affiliation(s)
- Shibani Mitra-Kaushik
- Center for Infectious Disease and Vaccine Research, University of Massachusetts Medical School, Worcester, MA 01655, USA
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Harker J, Bukreyev A, Collins PL, Wang B, Openshaw PJM, Tregoning JS. Virally delivered cytokines alter the immune response to future lung infections. J Virol 2007; 81:13105-11. [PMID: 17855518 PMCID: PMC2169117 DOI: 10.1128/jvi.01544-07] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Respiratory syncytial virus (RSV) is an important cause of infant morbidity and mortality worldwide and is increasingly recognized to have a role in the development and exacerbation of chronic lung diseases. There is no effective vaccine, and we reasoned that it might be possible to skew the immune system towards beneficial nonpathogenic responses by selectively priming protective T-cell subsets. We therefore tested recombinant RSV (rRSV) candidates expressing prototypic murine Th1 (gamma interferon [IFN-gamma]) or Th2 (interleukin-4 [IL-4]) cytokines, with detailed monitoring of responses to subsequent infections with RSV or (as a control) influenza A virus. Although priming with either recombinant vector reduced viral load during RSV challenge, enhanced weight loss and enhanced pulmonary influx of RSV-specific CD8+ T cells were observed after challenge in mice primed with rRSV/IFN-gamma. By contrast, rRSV/IL-4-primed mice were protected against weight loss during secondary challenge but showed airway eosinophilia. When rRSV/IL-4-primed mice were challenged with influenza virus, weight loss was attenuated but was again accompanied by marked airway eosinophilia. Thus, immunization directed toward enhancement of Th1 responses reduces viral load but is not necessarily protective against disease. Counter to expectation, Th2-biased responses were more beneficial but also influenced the pathological effects of heterologous viral challenge.
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Affiliation(s)
- James Harker
- Department of Respiratory Medicine, MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, National Heart and Lung Institute, Imperial College London, St. Mary's Campus, London W2 1PG, United Kingdom
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Abstract
The primary focus of our work is the initiation of an antiviral immune response. While we employ many experimental systems to address this fundamental issue, much of our work revolves around the use of vaccinia virus. Concerns over the negative effects of vaccination have prevented the return of the smallpox immunization program to the general population and underscored the importance of understanding the primary immune response to vaccinia virus. This response is comprised of a complex symphony of immune system components employing a variety of different mechanisms. In this review, we will both highlight the roles of many of these components and touch on the applications of vaccinia virus in the laboratory and the clinic.
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Affiliation(s)
- Matthew A Fischer
- Department of Microbiology and Immunology, Pennsylvania State University, Milton S. Hershey College of Medicine, Hershey, PA 17033, USA
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Freyschmidt EJ, Mathias CB, MacArthur DH, Laouar A, Narasimhaswamy M, Weih F, Oettgen HC. Skin inflammation in RelB−/− mice leads to defective immunity and impaired clearance of vaccinia virus. J Allergy Clin Immunol 2007; 119:671-9. [PMID: 17336617 DOI: 10.1016/j.jaci.2006.12.645] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2006] [Revised: 12/15/2006] [Accepted: 12/19/2006] [Indexed: 11/17/2022]
Abstract
BACKGROUND Atopic dermatitis (AD) is an inflammatory skin disorder occurring in genetically predisposed individuals with a systemic T(H)2 bias. Atopic dermatitis patients exposed to the smallpox vaccine, vaccinia virus (VV), occasionally develop eczema vaccinatum (EV), an overwhelming and potentially lethal systemic infection with VV. OBJECTIVE To establish a murine model of EV and examine the effects of skin inflammation on VV immunity. METHODS The skin of RelB(-/-) mice, like that of chronic AD lesions in humans, exhibits thickening, eosinophilic infiltration, hyperkeratosis, and acanthosis. RelB(-/-) and wild-type (WT) control mice were infected with VV via skin scarification. Viral spread, cytokine levels, IgG2a responses and VV-specific T cells were measured. RESULTS Cutaneously VV-infected RelB(-/-), but not WT mice, exhibited weight loss, markedly impaired systemic clearance of the virus and increased contiguous propagation from the inoculation site. This was associated with a dramatically impaired generation of IFN-gamma-producing CD8(+) vaccinia-specific T cells along with decreased secretion of IFN-gamma by VV-stimulated splenocytes. The T(H)2 cytokines-IL-4, IL-5, IL-13, and IL-10-on the other hand, were overproduced. When infected intraperitoneally, RelB(-/-) mice generated robust T cell responses with good IFN-gamma production. CONCLUSION Allergic inflammation in RelB(-/-) mice is associated with dysregulated immunity to VV encountered via the skin. We speculate that susceptibility of AD patients to overwhelming vaccinia virus infection is similarly related to ineffective T cell responses. CLINICAL IMPLICATIONS The susceptibility of patients with AD to EV following cutaneous contact with VV is related to ineffective antiviral immune responses.
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Affiliation(s)
- Eva-Jasmin Freyschmidt
- Department of Pediatrics, Division of Immunology, Children's Hospital, Harvard Medical School, Boston, MA, USA
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Zhou W, Hashimoto K, Moore ML, Elias JA, Zhu Z, Durbin J, Colasurdo G, Rutigliano JA, Chiappetta CL, Goleniewska K, O'Neal JF, Graham BS, Stokes Peebles R. IL-13 is associated with reduced illness and replication in primary respiratory syncytial virus infection in the mouse. Microbes Infect 2006; 8:2880-9. [PMID: 17110149 PMCID: PMC1811125 DOI: 10.1016/j.micinf.2006.09.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2005] [Revised: 09/07/2006] [Accepted: 09/15/2006] [Indexed: 01/20/2023]
Abstract
The role of IL-13 in respiratory syncytial virus (RSV) immunopathogenesis is incompletely described. To assess the effect of IL-13 on primary RSV infection, transgenic mice which either overexpress IL-13 in the lung (IL-13 OE) or non-transgenic littermates (IL-13 NT) were challenged intranasally with RSV. IL-13 OE mice had significantly decreased peak viral titers four days after infection compared to non-transgenic littermates. In addition, IL-13 OE mice had significantly lower RSV-induced weight loss and reduced lung IFN-γ protein expression compared with IL-13 NT mice. In contrast, primary RSV challenge of IL-13 deficient mice resulted in a small, but statistically significant increase in viral titers on day four after infection, no difference in RSV-induced weight loss compared to wild type mice, and augmented IFN-γ production on day 6 after infection. In STAT1-deficient (STAT1 KO) mice, where primary RSV challenge produced high levels of IL-13 production in the lungs, treatment with an IL-13 neutralizing protein resulted in greater peak viral titers both four and six days after RSV and greater RSV-induced weight loss compared to mice treated with a control protein. These results suggest that IL-13 modulates illness from RSV-infection.
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Affiliation(s)
- Weisong Zhou
- Department of Medicine, T-1218 MCN, Vanderbilt University Medical Center, Nashville, TN 37232-2650, USA
| | - Koichi Hashimoto
- Department of Microbiology, Fukushima Medical University, 1st Hikariga-oka Fukushima, Fukushima 960-1295, Japan
| | - Martin L. Moore
- Department of Medicine, T-1218 MCN, Vanderbilt University Medical Center, Nashville, TN 37232-2650, USA
| | - Jack A. Elias
- Department of Medicine, Yale University, 333 Cedar Street/105LCI, New Haven, CT 06520-8057, USA
| | - Zhou Zhu
- Department of Medicine, Johns Hopkins University, 5501 Hopkins Bayview Boulevard, Baltimore, MD 21224, USA
| | - Joan Durbin
- Department of Pediatrics, Ohio State University, Columbus Children's Research Institute, 700 Children's Drive, Columbus, OH 43205, USA
| | - Giuseppe Colasurdo
- Department of Pediatrics, University of Texas-Houston Medical School, 6431 Fannin MSB 3 228, Houston, TX 77030, USA
| | - John A. Rutigliano
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Building 40, 40 Convent Drive, MSC 3017, Bethesda, MD 20892-3017, USA
| | - Constance L. Chiappetta
- Department of Pediatrics, University of Texas-Houston Medical School, 6431 Fannin MSB 3 228, Houston, TX 77030, USA
| | - Kasia Goleniewska
- Department of Medicine, T-1218 MCN, Vanderbilt University Medical Center, Nashville, TN 37232-2650, USA
| | - Jamye F. O'Neal
- Department of Medicine, T-1218 MCN, Vanderbilt University Medical Center, Nashville, TN 37232-2650, USA
| | - Barney S. Graham
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Building 40, 40 Convent Drive, MSC 3017, Bethesda, MD 20892-3017, USA
| | - R. Stokes Peebles
- Department of Medicine, T-1218 MCN, Vanderbilt University Medical Center, Nashville, TN 37232-2650, USA
- Corresponding author. Present address: Center for Lung Research, T-1217 MCN, Vanderbilt University Medical Center, Nashville, TN 37232-2650, USA. Tel.: +1 615 322 3412; fax: +1 615 343 7448.
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40
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de Lang A, Osterhaus AD, Haagmans BL. Interferon-gamma and interleukin-4 downregulate expression of the SARS coronavirus receptor ACE2 in Vero E6 cells. Virology 2006; 353:474-81. [PMID: 16860835 PMCID: PMC7111939 DOI: 10.1016/j.virol.2006.06.011] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2006] [Revised: 06/12/2006] [Accepted: 06/15/2006] [Indexed: 12/27/2022]
Abstract
Interferons (IFNs) inhibit severe acute respiratory syndrome coronavirus (SARS-CoV) replication and might be valuable for SARS treatment. In this study, we demonstrate that treatment of Vero E6 cells with interleukin-4 (IL-4) decreased the susceptibility of these cells to SARS-CoV infection. In contrast to IFNs, IL-4 did not show antiviral activity when administered immediately after SARS-CoV infection, suggesting that IL-4 acts early during the SARS-CoV replication cycle. Indeed, binding of recombinant SARS-CoV spike protein to Vero E6 cells was diminished on cells treated with IL-4, but also on cells exposed to IFN-γ. Consistent with these observations, IL-4 and IFN-γ downregulated cell surface expression of angiotensin-converting enzyme 2 (ACE2), the SARS-CoV receptor. Besides diminished ACE2 cell surface expression, ACE2 mRNA levels were also decreased after treatment with these cytokines. These findings suggest that IL-4 and IFN-γ inhibit SARS-CoV replication partly through downregulation of ACE2.
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41
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Matsui M, Moriya O, Yoshimoto T, Akatsuka T. T-bet is required for protection against vaccinia virus infection. J Virol 2005; 79:12798-806. [PMID: 16188982 PMCID: PMC1235859 DOI: 10.1128/jvi.79.20.12798-12806.2005] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The transcription factor T-bet regulates the differentiation of CD4(+) T-helper type 1 (Th1) cells and represses Th2 lineage commitment. Since Th1 cells are crucial in the defense against pathogens, several studies addressed the role of T-bet in immunity to infection using T-bet knockout (T-bet(-/-)) mice. Nevertheless, it is still unclear whether T-bet is required for defense. Although vaccinia virus (VV) has extensively been used as an expression vector and the smallpox vaccine, there is only limited knowledge about immunity to VV infection. The urgency to understand the immune responses has been increased because of concerns about bioterrorism. Here, we show that T-bet is critical in the defense against VV infection as follows: (i) the survival rate of T-bet(-/-) mice was lower than that of control littermates postinfection; (ii) T-bet(-/-) mice lost more weight postinfection; and (iii) control mice cleared VV faster than T-bet(-/-) mice. As expected, a significant Th2 shift was observed in CD4(+) T cells of T-bet(-/-) mice. Furthermore, absence of T-bet impaired VV-specific CD8(+) cytotoxic T-lymphocyte (CTL) function, including cytolytic activity, antiviral cytokine production, and proliferation. Cytolytic capacity of natural killer (NK) cells was also diminished in T-bet(-/-) mice, whereas anti-VV antibody production was not impaired. These data reveal that the enhanced susceptibility to VV infection in T-bet(-/-) mice was at least partially due to the Th2 shift of CD4(+) T cells and the diminished function of VV-specific CTLs and NK cells but not due to downregulation of antibody production.
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Affiliation(s)
- Masanori Matsui
- Department of Microbiology, Saitama Medical School, Moroyama-Cho, Iruma-Gun, Japan.
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42
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McGettigan JP, Koser ML, McKenna PM, Smith ME, Marvin JM, Eisenlohr LC, Dietzschold B, Schnell MJ. Enhanced humoral HIV-1-specific immune responses generated from recombinant rhabdoviral-based vaccine vectors co-expressing HIV-1 proteins and IL-2. Virology 2005; 344:363-77. [PMID: 16226782 DOI: 10.1016/j.virol.2005.09.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2005] [Revised: 08/10/2005] [Accepted: 09/06/2005] [Indexed: 12/23/2022]
Abstract
Recombinant rabies virus (RV) vaccine strain-based vectors expressing HIV-1 antigens have been shown to induce strong and long-lasting cellular but modest humoral responses against the expressed antigens in mice. However, an effective vaccine against HIV-1 may require stronger responses, and the development of such an immune response may depend on the presence of certain cytokines at the time of the inoculation. Here, we describe several new RV-based vaccine vehicles expressing HIV-1 Gag or envelope (Env) and murine IL-2 or IL-4. Cells infected with recombinant RVs expressed high levels of functional IL-2 or IL-4 in culture supernatants in addition to HIV-1 proteins. The recombinant RV expressing IL-4 was highly attenuated in a cytokine-independent manner, indicating that the insertion of two foreign genes into the RV genome is mainly responsible for the attenuation observed. The expression of IL-4 resulted in a decrease in the cellular immune response against HIV-1 Gag and Env when compared with the parental virus not expressing IL-4 and only 2 of 20 mice seroconverted to HIV-1 Env after two inoculations. The IL-2-expressing RV was completely apathogenic after direct intracranial inoculation of mice. In addition, mice immunized with IL-2 maintained strong anti-HIV-1 Gag and Env cellular responses and consistently induced seroconversion against HIV-1 Env after two inoculations. This suggests the potential use of IL-2 in RV-based HIV-1 vaccine strategies, which may require the induction of both arms of the immune response.
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Affiliation(s)
- James P McGettigan
- Department of Microbiology and Immunology, Jefferson Medical College, Thomas Jefferson University, 233 South 10th Street, BLSB 330, Philadelphia, PA 19107-6799, USA.
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43
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Bukreyev A, Belyakov IM, Prince GA, Yim KC, Harris KK, Berzofsky JA, Collins PL. Expression of interleukin-4 by recombinant respiratory syncytial virus is associated with accelerated inflammation and a nonfunctional cytotoxic T-lymphocyte response following primary infection but not following challenge with wild-type virus. J Virol 2005; 79:9515-26. [PMID: 16014914 PMCID: PMC1181599 DOI: 10.1128/jvi.79.15.9515-9526.2005] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The outcome of a viral infection or of immunization with a vaccine can be influenced by the local cytokine environment. In studies of experimental vaccines against respiratory syncytial virus (RSV), an increased stimulation of Th2 (T helper 2) lymphocytes was associated with increased immunopathology upon subsequent RSV infection. For this study, we investigated the effect of increased local expression of the Th2 cytokine interleukin-4 (IL-4) from the genome of a recombinant RSV following primary infection and after a challenge with wild-type (wt) RSV. Mice infected with RSV/IL-4 exhibited an accelerated pulmonary inflammatory response compared to those infected with wt RSV, although the wt RSV group caught up by day 8. In the first few days postinfection, RSV/IL-4 was associated with a small but significant acceleration in the expansion of pulmonary T lymphocytes specific for an RSV CD8(+) cytotoxic T-lymphocyte (CTL) epitope presented as a major histocompatibility complex class I tetramer. However, by day 7 the response of tetramer-positive T lymphocytes in the wt RSV group caught up and exceeded that of the RSV/IL-4 group. At all times, the CTL response of the RSV/IL-4 group was deficient in the production of gamma interferon and was nonfunctional for in vitro cell killing. The accelerated inflammatory response coincided with an accelerated accumulation and activation of pulmonary dendritic cells early in infection, but thereafter the dendritic cells were deficient in the expression of B7-1, which governs the acquisition of cytolytic activity by CTL. Following a challenge with wt RSV, there was an increase in Th2 cytokines in the animals that had previously been infected with RSV/IL-4 compared to those previously infected with wt RSV, but the CD8(+) CTL response and the amount of pulmonary inflammation were not significantly different. Thus, a strong Th2 environment during primary pulmonary immunization with live RSV resulted in early inflammation and a largely nonfunctional primary CTL response but had a minimal effect on the secondary response.
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Affiliation(s)
- Alexander Bukreyev
- Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Cancer Institute, Bethesda, MD 20892-8007, USA.
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44
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Stanford MM, McFadden G. The ‘supervirus’? Lessons from IL-4-expressing poxviruses. Trends Immunol 2005; 26:339-45. [PMID: 15922951 DOI: 10.1016/j.it.2005.04.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2005] [Revised: 03/09/2005] [Accepted: 04/05/2005] [Indexed: 01/26/2023]
Abstract
Members of the Poxviridae family are particularly adept at avoiding the host immune system, encoding a plethora of immunomodulatory proteins that subvert host defense. With their large genome, poxviruses are also useful for studying the effect of exogenous genes on virus-host interactions and immune responses. The insertion of the Th2 cytokine interleukin-4 (IL-4) into several poxviruses significantly increases the efficiency of the recombinant virus as a pathogen by directly inhibiting the development of Th1 immunity, which is crucial for viral clearance. In an age in which the fear of genetically modified weaponized pathogens exists, the understanding of how to make viruses more pathogenic further blurs the distinction between fundamental academic research and bioweapons development. Here, the extent of immune evasion by IL-4-expressing poxviruses will be explored, as will the consequences of this increased pathogenicity on protective immune responses.
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Affiliation(s)
- Marianne M Stanford
- BioTherapeutics Research Group, Robarts Research Institute & Microbiology and Immunology, University of Western Ontario, London, Ontario N6G 2V4, Canada
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45
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Kienzle N, Olver S, Buttigieg K, Groves P, Janas ML, Baz A, Kelso A. Progressive differentiation and commitment of CD8+ T cells to a poorly cytolytic CD8low phenotype in the presence of IL-4. THE JOURNAL OF IMMUNOLOGY 2005; 174:2021-9. [PMID: 15699131 DOI: 10.4049/jimmunol.174.4.2021] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Exposure to IL-4 during activation of naive murine CD8+ T cells leads to generation of IL-4-producing effector cells with reduced surface CD8, low perforin, granzyme B and granzyme C mRNA, and poor cytolytic function. We show in this study that maximal development of these cells depended on exposure to IL-4 for the first 5 days of activation. Although IL-4 was not required at later times, CD8 T cell clones continued to lose surface CD8 expression with prolonged culture, suggesting commitment to the CD8low phenotype. This state was reversible in early differentiation. When single CD8low cells from 4-day cultures were cultured without IL-4, 65% gave rise to clones that partly or wholly comprised CD8high cells; the proportion of reverted clones was reduced or increased when the cells were cloned in the presence of IL-4 or anti-IL-4 Ab, respectively. CD8 expression positively correlated with perforin and granzyme A, B, and C mRNA, and negatively correlated with IL-4 mRNA levels among these clones. By contrast, most CD8low cells isolated at later time points maintained their phenotype, produced IL-4, and exhibited poor cytolytic function after many weeks in the absence of exogenous IL-4. We conclude that IL-4-dependent down-regulation of CD8 is associated with progressive differentiation and commitment to yield IL-4-producing cells with little cytolytic activity. These data suggest that the CD4-CD8- cells identified in some disease states may be the product of a previously unrecognized pathway of effector differentiation from conventional CD8+ T cells.
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Affiliation(s)
- Norbert Kienzle
- Cooperative Research Centre for Vaccine Technology and Queensland Institute of Medical Research, Brisbane, Queensland, Australia.
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46
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Abstract
Of the 80-plus known infectious agents pathogenic for humans, there are now more than 30 vaccines against 26 mainly viral and bacterial infections and these greatly minimize subsequent disease and prevent death after exposure to those agents. This article describes the nature of the vaccines, from live attenuated agents to subunits, their efficacy and safety, and the kind of the immune responses generated by those vaccines, which are so effective. To date, all licensed vaccines generate especially specific antibodies, which attach to the infectious agent and therefore can very largely prevent infection. These vaccines have been so effective in developed countries in preventing mortality after a subsequent infection that attempts are being made to develop vaccines against many of the remaining infectious agents. Many of the latter are difficult to manipulate; they can cause persisting infections or show great antigenic variation. A range of new approaches to improve selected immune responses, such as immunization with DNA or chimeric live vectors, viral or bacterial, are under intense scrutiny, as well as genomic analysis of the agent.
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Affiliation(s)
- Gordon Ada
- Division of Immunology and Genetics, John Curtin School of Medical Research, Australian National University, Canberra, ACT, 2601, Australia.
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47
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Clydesdale G, Pekin J, Beaton S, Jackson RJ, Vignarajan S, Hardy CM. Contraception in mice immunized with recombinant zona pellucida subunit 3 proteins correlates with Th2 responses and the levels of interleukin 4 expressed by CD4+ cells. Reproduction 2005; 128:737-45. [PMID: 15579591 DOI: 10.1530/rep.1.00310] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The immune responses and contraceptive effect in mice were tested following immunization with purified recombinant zona pellucida (ZP) proteins produced using a vaccinia (v) virus T7 mammalian expression system. Female BALB/c and CBA mice were immunized with recombinant mouse (m) ZP3 (vmZP3) or pig (p) ZPC (vpZPC) using Freund's adjuvants and boosted three times. Fertility and mean litter size were significantly reduced in groups of BALB/c mice immunized with recombinant vmZP3 and vpZPC compared with controls treated with Freund's adjuvants alone. In CBA mice, fertility and mean litter size were significantly reduced in groups of animals immunized with vmZP3 but not with vpZPC compared with the controls. Most infertile animals treated with vmZP3 and a single infertile BALB/c mouse treated with vpZPC lacked mature follicles in the ovaries, whilst no abnormalities were detected in the remaining vpZPC treated, fertile vmZP3 treated and control mice. All mice (both fertile and infertile) immunized with vmZP3 and vpZPC produced IgG antibodies, but the levels of total IgG, IgG1 and IgG2a did not correlate with infertility. All BALB/c and CBA mice immunized with vmZP3 and vpZPC showed greater delayed type hypersensitivity responses in the footpads after challenge with their respective antigens than controls, but these did not differ between the fertile and infertile mice. There was, however, a significant correlation between infertility and the levels of the Type 2 T helper cell (Th2) cytokine interleukin 4 produced by CD4+ cells from vmZP3 immunized mice in response to stimulation with vmZP3 and this did not apply to the levels of the Type 1 T helper cell (Th1) cytokine interferon gamma or the general proliferation response. The results support the conclusion that induction of Th2 responses in individual mice determines whether infertility develops in response to immunization with zona pellucida proteins.
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Affiliation(s)
- Gavin Clydesdale
- Pest Animal Control Cooperative Research Centre, CSIRO Sustainable Ecosystems, GPO Box 284, Canberra, Australian Capital Territory 2601, Australia
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48
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Shen Y, Nemunaitis J. Fighting Cancer with Vaccinia Virus: Teaching New Tricks to an Old Dog. Mol Ther 2005; 11:180-95. [PMID: 15668130 DOI: 10.1016/j.ymthe.2004.10.015] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2004] [Accepted: 10/22/2004] [Indexed: 11/22/2022] Open
Abstract
Vaccinia virus has played a huge part in human beings' victory over smallpox. With smallpox being eradicated and large-scale vaccination stopped worldwide, vaccinia has assumed a new role in our fight against another serious threat to human health: cancer. Recent advances in molecular biology, virology, immunology, and cancer genetics have led to the design of novel cancer therapeutics based on vaccinia virus backbones. With the ability to infect efficiently a wide range of host cells, a genome that can accommodate large DNA inserts and express multiple genes, high immunogenicity, and cytoplasmic replication without the possibility of chromosomal integration, vaccinia virus has become the platform of many exploratory approaches to treat cancer. Vaccinia virus has been used as (1) a delivery vehicle for anti-cancer transgenes, (2) a vaccine carrier for tumor-associated antigens and immunoregulatory molecules in cancer immunotherapy, and (3) an oncolytic agent that selectively replicates in and lyses cancer cells.
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Affiliation(s)
- Yuqiao Shen
- Mary Crowley Medical Research Center, 1717 Main Street, 60th Floor, Dallas, TX 75201, USA
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49
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Rosenthal KL. Recombinant Live Viral Vectors as Vaccines for Mucosal Immunity. Mucosal Immunol 2005. [DOI: 10.1016/b978-012491543-5/50061-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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50
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McCurdy LH, Rutigliano JA, Johnson TR, Chen M, Graham BS. Modified vaccinia virus Ankara immunization protects against lethal challenge with recombinant vaccinia virus expressing murine interleukin-4. J Virol 2004; 78:12471-9. [PMID: 15507634 PMCID: PMC525045 DOI: 10.1128/jvi.78.22.12471-12479.2004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Recent events have raised concern over the use of pathogens, including variola virus, as biological weapons. Vaccination with Dryvax is associated with serious side effects and is contraindicated for many people, and the development of a safer effective smallpox vaccine is necessary. We evaluated an attenuated vaccinia virus, modified vaccinia virus Ankara (MVA), by use of a murine model to determine its efficacy against an intradermal (i.d.) or intranasal (i.n.) challenge with vaccinia virus (vSC8) or a recombinant vaccinia virus expressing murine interleukin-4 that exhibits enhanced virulence (vSC8-mIL4). After an i.d. challenge, 15 of 16 mice who were inoculated with phosphate-buffered saline developed lesions, one dose of intramuscularly administered MVA was partially protective (3 of 16 mice developed lesions), and the administration of two or three doses of MVA was completely protective (0 of 16 mice developed lesions). In unimmunized mice, an i.n. challenge with vSC8 caused a significant but self-limited illness, while vSC8-mIL4 resulted in lethal infections. Immunization with one or two doses of MVA prevented illness and reduced virus titers in mice who were challenged with either vSC8 or vSC8-mIL4. MVA induced a dose-related neutralizing antibody and vaccinia virus-specific CD8+-T-cell response. Mice immunized with MVA were fully protected from a low-dose vSC8-mIL4 challenge despite a depletion of CD4+ cells, CD8+ cells, or both T-cell subsets or an antibody deficiency. CD4+- or CD8+-T-cell depletion reduced the protection against a high-dose vSC8-mIL4 challenge, and the depletion of both T-cell subsets was associated with severe illness and higher vaccinia virus titers. Thus, MVA induces broad humoral and cellular immune responses that can independently protect against a molecularly modified lethal poxvirus challenge in mice. These data support the continued development of MVA as an alternative candidate vaccine for smallpox.
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Affiliation(s)
- Lewis H McCurdy
- Vaccine Research Center/NIAID/NIH, 40 Convent Drive, MSC 3017, Building 40, Room 2502, Bethesda, MD 20892-3017, USA
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