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Zhang X, Guo M, Sun Y, Wang Y, Zhang Z. Transcriptomic analysis and discovery of genes involving in enhanced immune protection of Pacific abalone (Haliotis discus hannai) in response to the re-infection of Vibrio parahaemolyticus. FISH & SHELLFISH IMMUNOLOGY 2022; 125:128-140. [PMID: 35523358 DOI: 10.1016/j.fsi.2022.04.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 04/20/2022] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
Traditionally, invertebrates were thought to lack immune memory owing to a lack of acquired immune-related factors such as immunoglobulin. Nonetheless, with the in-depth consideration of invertebrate immune priming, scholars have gradually realized that the immune defenses of invertebrates are more complex than previously imagined. In the current investigation, the survival rate of Vibrio parahaemolyticus re-infected Haliotis discus hannai (VV group) was significantly different from the other groups (p < 0.05), indicating that an enhanced immune response may commence after first exposure to the same strain of V. parahaemolyticus. The transcriptome profiles of hemocytes obtained 102,052 unigenes, and 27,449 of them were annotated successfully. Venn diagram analysis showed that 2832 DEGs commonly responded to the first and second immune responses. 1734 "immune response genes" and 1460 "potential immune-enhancing genes" were also identified. A comparison of both "immune response genes" and "potential immune-enhancing genes" revealed 1019 immune-enhancing regulatory genes and 281 essential immune-enhancing genes. According to the KEGG enrichment analysis results of ERGs and EEGs, classical immune-related signaling pathways, such as NF-kappa B signaling pathway, NOD-like receptor signaling pathway, IL-17 signaling pathway, and TLR signaling pathway were significantly enriched, indicating that they were all involved in the response to V. parahaemolyticus re-infection and were likely dominant in the immune enhancement process of H. discus hannai hemocytes. The intermolecular interactions generated by Cytoscape after re-infection of V. parahaemolyticus appear more intuitively to demonstrate that hemocytes regulation was not an independent process, but rather an intricate regulatory network. H. discus hannai demonstrated enhanced immunological activity after re-infection with V. parahaemolyticus, showing immune memory in hemocytes. The current study's findings have broadened the study of immune enhancement in invertebrates and laid the framework for future research into the molecular mechanism of immune enhancement in abalones.
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Affiliation(s)
- Xin Zhang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, 361021, China
| | - Mingxing Guo
- College of Marine Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yulong Sun
- College of Marine Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yilei Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, 361021, China.
| | - Ziping Zhang
- College of Marine Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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2
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Domaszewska K, Boraczyński M, Tang YY, Gronek J, Wochna K, Boraczyński T, Wieliński D, Gronek P. Protective Effects of Exercise Become Especially Important for the Aging Immune System in The Covid-19 Era. Aging Dis 2022; 13:129-143. [PMID: 35111366 PMCID: PMC8782560 DOI: 10.14336/ad.2021.1219] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 01/01/2022] [Indexed: 12/11/2022] Open
Abstract
Aging is a complex, multietiological process and a major risk factor for most non-genetic, chronic diseases including geriatric syndromes that negatively affect healthspan and longevity. In the scenario of "healthy or good aging", especially during the COVID-19 era, the proper implementation of exercise as "adjuvant" or "polypill" to improve disease-related symptoms and comorbidities in the general population is a top priority. However, there is still a gap concerning studies analyzing influence of exercise training to immune system in older people. Therefore, the aim of this review is to provide a brief summary of well-established findings in exercise immunology and immunogerontology, but with a focus on the main exercise-induced mechanisms associated with aging of the immune system (immunosenescence). The scientific data strongly supports the notion that regular exercise as a low-cost and non-pharmacological treatment approach, when adjusted on an individual basis in elderly, induce multiple rejuvenating mechanisms: (1) affects the telomere-length dynamics (a "telo-protective" effect), (2) promote short- and long-term anti-inflammatory effects (via e.g., triggering the anti-inflammatory phenotype), 3) stimulates the adaptive immune system (e.g., helps to offset diminished adaptive responses) and in parallel inhibits the accelerated immunosenescence process, (4) increases post-vaccination immune responses, and (5) possibly extends both healthspan and lifespan.
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Affiliation(s)
- Katarzyna Domaszewska
- Department of Physiology and Biochemistry, Poznan University of Physical Education, Poland.
| | - Michał Boraczyński
- Faculty of Health Sciences, Collegium Medicum, University of Warmia and Mazury in Olsztyn, Poland.
| | - Yi-Yuan Tang
- College of Health Solutions, Arizona State University, USA.
| | - Joanna Gronek
- Laboratory of Genetics, Department of Dance and Gymnastics, Poznan University of Physical Education, Poland.
| | - Krystian Wochna
- Laboratory of Swimming and Water Lifesaving, Faculty of Sport Sciences, Poznan University of Physical Education, Poland.
| | | | - Dariusz Wieliński
- Department of Anthropology and Biometry, Poznan University of Physical Education, Poland.
| | - Piotr Gronek
- Laboratory of Genetics, Department of Dance and Gymnastics, Poznan University of Physical Education, Poland.
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Protective Immunity Induced by Virus-Like Particle Containing Merozoite Surface Protein 9 of Plasmodium berghei. Vaccines (Basel) 2020; 8:vaccines8030428. [PMID: 32751598 PMCID: PMC7564927 DOI: 10.3390/vaccines8030428] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 07/22/2020] [Accepted: 07/27/2020] [Indexed: 12/26/2022] Open
Abstract
Merozoite surface protein 9 (MSP-9) from Plasmodium has shown promise as a vaccine candidate due to its location and possible role in erythrocyte invasion. In this study, we generated virus-like particles (VLPs) targeting P. berghei MSP-9, and investigated the protection against lethal doses of P. berghei in a mouse model. We found that VLP vaccination induced a P. berghei-specific IgG antibody response in the sera and CD4+ and CD8+ T cell populations in blood compared to a naïve control group. Upon challenge infection with P. berghei, vaccinated mice showed a significant increase in CD4+ and CD8+ effector memory T cell and memory B cell populations. Importantly, MSP-9 VLP immunization inhibited levels of the pro-inflammatory cytokines IFN-γ and IL-6 in the spleen and parasite replication in blood, resulting in significantly prolonged survival time. These results suggest that the MSP-9 VLP vaccine may constitute an effective malaria vaccine.
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Fan S, Liao Y, Jiang G, Jiang L, Wang L, Xu X, Feng M, Yang E, Zhang Y, Cui W, Li Q. Study of integrated protective immunity induced in rhesus macaques by the intradermal administration of a bivalent EV71-CA16 inactivated vaccine. Vaccine 2020; 38:2034-2044. [PMID: 31982260 DOI: 10.1016/j.vaccine.2019.12.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/28/2019] [Accepted: 12/19/2019] [Indexed: 02/07/2023]
Abstract
Enterovirus type 71 (EV71) and coxsackievirus A 16 (CA16) are recognized as the major pathogens responsible for human hand-foot-mouth disease. To develop a bivalent EV71-CA16 vaccine, rhesus macaques immunized with two doses of this vaccine via the intradermal route were challenged with EV71 or CA16, and their clinical symptoms, viral shedding, neutralizing antibodies, IFN-γ-specific ELISpots, and tissue viral load were examined longitudinally. Specific immunity against EV71 and CA16 was observed in the macaques, which exhibited controlled proliferation of the EV71 and CA16 viruses and upregulated expression of immune-related genes compared with the controls. Furthermore, broad protection against EV71 and CA16 challenge without immunopathological effects was observed in all the immunized macaques. These studies suggest that the bivalent EV71-CA16 inactivated vaccine was effective against wild-type EV71 or CA16 viral challenge in rhesus macaques.
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Affiliation(s)
- Shengtao Fan
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming 650118, China
| | - Yun Liao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming 650118, China
| | - Guorun Jiang
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming 650118, China
| | - Li Jiang
- Aimei Convac BioPharm (Jiangsu) Co., Ltd., Taizhou 225300, Jiangsu, China
| | - Lichun Wang
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming 650118, China
| | - Xingli Xu
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming 650118, China
| | - Min Feng
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming 650118, China
| | - Erxia Yang
- Aimei Convac BioPharm (Jiangsu) Co., Ltd., Taizhou 225300, Jiangsu, China
| | - Ying Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming 650118, China
| | - Wei Cui
- Aimei Convac BioPharm (Jiangsu) Co., Ltd., Taizhou 225300, Jiangsu, China
| | - Qihan Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming 650118, China.
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Lee SH, Chu KB, Kang HJ, Quan FS. Virus-like particles containing multiple antigenic proteins of Toxoplasma gondii induce memory T cell and B cell responses. PLoS One 2019; 14:e0220865. [PMID: 31465461 PMCID: PMC6715270 DOI: 10.1371/journal.pone.0220865] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/24/2019] [Indexed: 12/16/2022] Open
Abstract
Although the efforts to develop vaccine against Toxoplasma gondii infection were made for decades, there is currently no licensed vaccine available for humans. Upon discovering a number of T or B cell epitope regions from T. gondii IMC, ROP18 and MIC8, multi-antigen VLPs or combination VLPs were generated. Mice immunized with multi-antigen VLPs or combination VLPs were challenge infected with T. gondii (ME49). T. gondii-specific IgG, IgG isotypes and IgA antibody responses, memory T and B cell responses and protection were evaluated. All the mice survived upon T. gondii challenge infection by multi-antigen VLPs vaccination. Vaccinated mice elicited higher levels of parasite-specific IgG and IgG2a antibody responses in sera, IgA antibody responses in feces, CD4+ and CD8+ T cell responses, and cytokines (IFN-γ, IL-10) responses compared to combination VLPs. In particular, the multi-antigen VLPs vaccination showed significantly higher levels of antibody secreting cell (ASC) responses, CD4+ and CD8+ effector memory T cells, and memory B cells than combination VLPs. Multi-antigen VLPs vaccination showed significant reduction of brain cyst counts and size, and all mice survived. Prediction and analysis of epitopes have indicated that IMC, ROP18 and MIC8 showed partially overlapping epitopes for T and B cells. Our results indicated that antibody responses, memory T and B cells induced by multi-antigen VLPs vaccination might contribute to the complete protection upon T. gondii (ME49) challenge infection.
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Affiliation(s)
- Su-Hwa Lee
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Ki-Back Chu
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Hae-Ji Kang
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Fu-Shi Quan
- Department of Medical Zoology, Kyung Hee University School of Medicine, Seoul, Republic of Korea
- Department of Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Graduate school, Kyung Hee University, Seoul, Republic of Korea
- * E-mail:
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Ghaffari Marandi BH, Zolfaghari MR, Kazemi R, Motamedi MJ, Amani J. Immunization against Vibrio cholerae, ETEC, and EHEC with chitosan nanoparticle containing LSC chimeric protein. Microb Pathog 2019; 134:103600. [PMID: 31202906 DOI: 10.1016/j.micpath.2019.103600] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 06/12/2019] [Accepted: 06/13/2019] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Severe intestinal infections caused by V. cholerae, ETEC and EHEC have contributed to the mortality rate in developing countries. Vibrio Cholera, ETEC and EHEC bacterium with the production of CT, LT and Stx2 toxins respectively lead to severe watery and bloody diarrhea. This study aimed to investigate a trimeric vaccine candidate containing recombinant chimeric protein, encapsulate the protein in chitosan nanoparticles and assess its immunogenicity. METHODS The LSC recombinant gene was used. It is composed of LTB (L), STXB (S) and CTXB (C) subunits respectively. The LSC recombinant protein was expressed and purified and confirmed by western blotting. The purified protein was encapsulated in chitosan nanoparticles, and its size was measured. BalB/c mice were immunized in four groups through oral and injection methods by LSC protein. The antibody titer was then evaluated by ELISA, and finally, the challenge test of the toxins from all three bacteria was done on the immunized mouse. RESULTS After expression and purification LSC protein size of nanoparticles containing protein was measured at 104.6 nm. Nanoparticles were able to induce systemic and mucosal immune responses by generating a useful titer of IgG and IgA. The challenge results with LT, CT and Stx toxins showed that the LSC protein might partially neutralize the effect of toxins. CONCLUSION LSC chimeric protein with the simultaneous three essential antigens have a protective effect against the toxins produced by ETEC, EHEC and Vibrio cholera bacteria and it can be used in vaccines to prevent Diarrhea caused by these three bacteria.
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Affiliation(s)
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | | | | | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Innate and Adaptive Immune Memory: an Evolutionary Continuum in the Host's Response to Pathogens. Cell Host Microbe 2019; 25:13-26. [PMID: 30629914 DOI: 10.1016/j.chom.2018.12.006] [Citation(s) in RCA: 272] [Impact Index Per Article: 54.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Immunological memory is an important evolutionary trait that improves host survival upon reinfection. Memory is a characteristic recognized within both the innate and adaptive arms of the immune system. Although the mechanisms and properties through which innate and adaptive immune memory are induced are distinct, they collude to improve host defense to pathogens. Here, we propose that innate immune memory, or "trained immunity," is a primitive form of adaptation in host defense, resulting from chromatin structure rearrangement, which provides an increased but non-specific response to reinfection. In contrast, adaptive immune memory is more advanced, with increased magnitude of response mediated through epigenetic changes, as well as specificity mediated by gene recombination. An integrative model of immune memory is important for broad understanding of host defense, and for identifying the most effective approaches to modulate it for the benefit of patients with infections and immune-mediated diseases.
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8
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Rezaie E, Nekoie H, Miri A, Oulad G, Ahmadi A, Saadati M, Bozorgmehr M, Ebrahimi M, Salimian J. Different frequencies of memory B-cells induced by tetanus, botulinum, and heat-labile toxin binding domains. Microb Pathog 2018; 127:225-232. [PMID: 30528250 DOI: 10.1016/j.micpath.2018.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 10/18/2018] [Accepted: 12/03/2018] [Indexed: 12/18/2022]
Abstract
Along with robust immunogenicity, an ideal vaccine candidate should be able to produce a long lasting protection. In this regard, the frequency of memory B-cells is possibly an important factor in memory B-cell persistency and duration of immunological memory. On this basis, binding domains of tetanus toxin (HcT), botulinum type A1 toxin (HcA), and heat-labile toxin (LTB) were selected as antigen models that induced long-term, midterm and short-term immune memory, respectively. In the present study, the frequency of total memory B-cells after immunization with HcT, HcA and LTB antigens after 90 and 180 days, and also after one booster, in 190 days, was evaluated. The results showed a significant correlation between frequency of total memory B-cells and duration of humoral immunity. Compared to other antigens, the HcT antibody titers and HcT total memory B-cell populations were greater and persistent even after 6 months. At 6 months after the final immunization, all HcT- and HcA-immunized mice survived against tetanus and botulinum toxins, and also LT toxin binding to GM1 ganglioside was blocked in LTB-immunized mice. We conclude the frequency of memory B-cells and their duration are likely a key factor for vaccine memory duration.
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Affiliation(s)
- Ehsan Rezaie
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Science, Tehran, Iran
| | - Hekmat Nekoie
- Biology Research Center, IH University, Tehran, Iran
| | - Ali Miri
- Human Genetic Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Gholamreza Oulad
- Applied Biotechnology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ali Ahmadi
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Science, Tehran, Iran
| | | | - Mahmood Bozorgmehr
- Department of Immunology, Avicenna Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marzieh Ebrahimi
- Department of Stem Cells and Developmental Biology, Royan Institute for Stem Cell Biology and Technology, Tehran, Iran.
| | - Jafar Salimian
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Albert-Vega C, Tawfik DM, Trouillet-Assant S, Vachot L, Mallet F, Textoris J. Immune Functional Assays, From Custom to Standardized Tests for Precision Medicine. Front Immunol 2018; 9:2367. [PMID: 30386334 PMCID: PMC6198655 DOI: 10.3389/fimmu.2018.02367] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 09/24/2018] [Indexed: 12/18/2022] Open
Abstract
The immune response is a dynamic system that maintains the integrity of the body, and more specifically fight against infections. However, an unbalanced host immune response is highlighted in many diseases. Exacerbated responses lead to autoimmune and allergic diseases, whereas, low or inefficient responses favor opportunistic infections and viral reactivations. Conflicting situations may also occur, such as in sepsis where inflammation and compensatory immunosuppression make it difficult to deploy the appropriate drug treatment. Until the current day, assessing the immune profile of patients remains a challenge. This is especially due to the inter-individual variability—a key feature of the immune system—which hinders precise diagnosis, prognosis, and therapeutic stratification. Our incapacity to practically interpret the host response may contribute to a high morbidity and mortality, such as the annual 6 million worldwide deaths in sepsis alone. Therefore, there is a high and increasing demand to assess patient immune function in routine clinical practice, currently met by Immune Functional Assays. Immune Functional Assays (IFA) hold a plethora of potentials that include the precise diagnosis of infections, as well as prediction of secondary and latent infections. Current available products are devoted to indirect pathogen detection such as Mycobacteria tuberculosis interferon gamma release assays (IGRA). In addition, identifying the status and the underlying factors of immune dysfunction (e.g., in septic patients) may guide immune targeted therapies. Tools to monitor and stratify the immune status are currently being studied but they still have many limitations such as technical standardization, biomarkers relevance, systematic interpretation and need to be simplified, in order to set the boundaries of “healthy,” “ill,” and “critically ill” responses. Thus, the design of new tools that give a comprehensive insight into the immune functionality, at the bedside, and in a timely manner represents a leap toward immunoprofiling of patients.
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Affiliation(s)
- Chloé Albert-Vega
- Joint Research Unit, Hospice Civils de Lyon, bioMerieux, Centre Hospitalier Lyon Sud, Pierre-Benite, France
| | - Dina M Tawfik
- Medical Diagnostic Discovery Department, bioMérieux S.A., Grenoble, France.,EA7426 Pathophysiology of Injury-Induced Immunosuppression, Université Claude Bernard Lyon 1-Hospices Civils de Lyon-bioMérieux, Lyon, France
| | - Sophie Trouillet-Assant
- Joint Research Unit, Hospice Civils de Lyon, bioMerieux, Centre Hospitalier Lyon Sud, Pierre-Benite, France.,Virologie et Pathologie Humaine - VirPath Team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
| | - Laurence Vachot
- Medical Diagnostic Discovery Department, bioMérieux S.A., Grenoble, France
| | - François Mallet
- Joint Research Unit, Hospice Civils de Lyon, bioMerieux, Centre Hospitalier Lyon Sud, Pierre-Benite, France.,EA7426 Pathophysiology of Injury-Induced Immunosuppression, Université Claude Bernard Lyon 1-Hospices Civils de Lyon-bioMérieux, Lyon, France
| | - Julien Textoris
- EA7426 Pathophysiology of Injury-Induced Immunosuppression, Université Claude Bernard Lyon 1-Hospices Civils de Lyon-bioMérieux, Lyon, France.,Hospices Civils de Lyon, Department of Anaesthesiology and Critical Care Medicine, Groupement Hospitalier Edouard Herriot, Université Claude Bernard Lyon 1, Lyon, France
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10
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Elllis JA. Another Look at the "Dismal Science" and Jenner's Experiment. Vet Clin North Am Small Anim Pract 2017; 48:243-255. [PMID: 29195925 DOI: 10.1016/j.cvsm.2017.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The follow-up to Jenner's experiment, routine vaccination, has reduced more disease and saved more vertebrate lives than any other iatrogenic procedure by orders of magnitude. The unassailability of that potentially provocative cliché has been ciphered in human medicine, even if it is more difficult in our profession. Most public relations headaches concerning vaccines are a failure to communicate, often resulting in overly great expectations. Even in the throes of a tight appointment schedule remembering and synopsizing (for clients), some details of the dismal science can make practice great again.
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Affiliation(s)
- John A Elllis
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4, Canada.
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11
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Feng D, Shaikh AS, Wang F. Recent Advance in Tumor-associated Carbohydrate Antigens (TACAs)-based Antitumor Vaccines. ACS Chem Biol 2016; 11:850-63. [PMID: 26895482 DOI: 10.1021/acschembio.6b00084] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cancer cells can be distinguished from normal cells by displaying aberrant levels and types of carbohydrate structures on their surfaces. These carbohydrate structures are known as tumor-associated carbohydrate antigens (TACAs). TACAs were considered as promising targets for the design of anticancer vaccines. Unfortunately, carbohydrates alone can only evoke poor immunogenicity because they are unable to induce T-cell-dependent immune responses, which is critical for cancer therapy. Moreover, immunotolerance and immunosuppression are easily induced by using natural occurring TACAs as antigens due to their endogenous property. This review summarizes the recent strategies to overcome these obstacles: (1) covalently coupling TACAs to proper carriers to improve immunogenicity, including clustered or multivalent conjugate vaccines, (2) coupling TACAs to T-cell peptide epitopes or the built-in adjuvant to form multicomponent glycoconjugate vaccines, and (3) developing vaccines based on chemically modified TACAs, which is combined with metabolic engineering of cancer cells.
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Affiliation(s)
- Danyang Feng
- Key
Laboratory of Chemical Biology of Natural Products (Ministry of education),
Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical
Sciences, Shandong University, Jinan 250012, Shandong, Peoples’ Republic of China
- National
Glycoengineering Research Center, Shandong University, Jinan 50012, Shandong, Peoples’ Republic of ChinaChina
| | - Abdul Sami Shaikh
- Institute
of Clinical Pharmacology, Qilu Hospital of Shandong University, Jinan 250012, Shandong, Peoples’ Republic of China
| | - Fengshan Wang
- Key
Laboratory of Chemical Biology of Natural Products (Ministry of education),
Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical
Sciences, Shandong University, Jinan 250012, Shandong, Peoples’ Republic of China
- National
Glycoengineering Research Center, Shandong University, Jinan 50012, Shandong, Peoples’ Republic of ChinaChina
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12
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Higher numbers of memory B-cells and Th2-cytokine skewing in high responders to hepatitis B vaccination. Vaccine 2015; 34:2281-9. [PMID: 26721327 DOI: 10.1016/j.vaccine.2015.12.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 11/22/2015] [Accepted: 12/09/2015] [Indexed: 12/23/2022]
Abstract
In the present study, differences in hepatitis B surface antigen (HBsAg)-specific memory B-cell responses between low and high responders to hepatitis B vaccine (HepB), based on levels of antibodies against HBsAg (anti-HBs), were determined. In addition, HBsAg specific T-cell responses between high (anti-HBs level >20,000 IU/L) and low (anti-HBs level <1500 IU/L) responders were compared. Numbers of HBsAg-specific B-cells, plasma immunoglobulin G (Ig) levels, and T-cell cytokine concentrations were measured in low and high responders directly before and one month after the second booster vaccination. In advance, an Enzyme-linked Immunosorbent Spot (ELISpot) Assay was optimized for the determination of HBsAg-specific B-cell responses. The number of HBsAg-specific B-cells was significantly higher (p<0.01) in the high responder group compared to the low responder group after a booster vaccination with HepB. In addition, the plasma IgG levels and numbers of HBsAg-specific B-cells were significantly correlated (RS=0.66, p<0.01). The HBsAg-specific Th1 cell response showed the same values in the low and high responder group and did not change by the booster vaccination with HepB. However, a significant correlation (RS=0.6975, p=0.007) between the IL-13 levels and the plasma IgG levels post-booster was found. Subsequently, the IL-13 level in the high-responder group post-booster was significantly higher compared to the low-responder group. Since activation of the B-cell response after vaccination is induced by Th2 cells and IL-13 is produced by these cells, we conclude that the difference in HBsAg-specific Th2 cells is involved in determining the differences in anti-HBs level and memory B-cell numbers between low and high responders.
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Lake-Bakaar GV, Lau D, Kuang PP, Singh K. Controlled Therapy Interruption Improves Host Immune Control of Chronic Hepatitis B Virus Infection in HBeAg-Positive Patients. Viral Immunol 2015; 28:564-9. [PMID: 26501982 DOI: 10.1089/vim.2015.0059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Prolonged viral suppression with oral antiviral drugs allows partial immune reconstitution. Controlled therapy interruption (CTI), by leveraging secondary immune response, proposes further augmentation in chronic hepatitis B virus (HBV) infection. Transient treatment interruptions (TIs) at months 0, 1, and 3 during otherwise continuous oral antiviral therapy allow viremic bursts, simulating autovaccination. Four weekly injections of Hepatitis B Immunoglobulin are given before the second and third TI to simulate prime boosting, which specifically amplifies the immune response. Fourteen patients (10 males; four controls, four HBeAg positive, and six anti-HBe positive) aged 28-46 years were studied. The period between TI and reappearance of viremia, time to relapse (TTR) (weeks) estimated immune control. The other endpoints included reduction in serum HBsAg IU/mL and loss of HBeAg. TTR after the first TI was significantly shorter in HBeAg-positive patients, indicating low baseline immunity. TTR increased significantly after the second and subsequent TI in all four HBeAg-positive patients. One patient persistently lost HBeAg. Mean HBsAg levels fell significantly in three of four patients after the second TI. In contrast, in the anti-HBe-positive group, TTR was unchanged after all three TI. Furthermore, no significant changes in HBsAg levels were detected after the second or subsequent TIs. No significant differences in adverse events were noted between groups. HBeAg-positive patients have low baseline levels of host immune control against HBV. CTI consistently boosts this immunity. CTI did not influence immunity in anti-HBe-positive patients.
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Affiliation(s)
- Gerond V Lake-Bakaar
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, Massachusetts
| | - Daryl Lau
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, Massachusetts
| | - Ping-Ping Kuang
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, Massachusetts
| | - Kiran Singh
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, Massachusetts
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Zhang X, Wang Q, Bi Y, Kou Z, Zhou J, Cui Y, Yan Y, Zhou L, Tan Y, Yang H, Du Z, Han Y, Song Y, Zhang P, Zhou D, Yang R, Wang X. Kinetics of Memory B Cell and Plasma Cell Responses in the Mice Immunized with Plague Vaccines. Scand J Immunol 2014; 79:157-62. [DOI: 10.1111/sji.12146] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 12/16/2013] [Indexed: 11/29/2022]
Affiliation(s)
- X. Zhang
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - Q. Wang
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - Y. Bi
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - Z. Kou
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - J. Zhou
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - Y. Cui
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - Y. Yan
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - L. Zhou
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - Y. Tan
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - H. Yang
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - Z. Du
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - Y. Han
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - Y. Song
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - P. Zhang
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - D. Zhou
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - R. Yang
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
| | - X. Wang
- Laboratory of Analytical Microbiology; State Key Laboratory of Pathogen and Biosecurity; Beijing Institute of Microbiology and Epidemiology; Beijing China
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Kim JS, Kim WS, Choi HG, Jang B, Lee K, Park JH, Kim HJ, Cho SN, Shin SJ. Mycobacterium tuberculosis RpfB drives Th1-type T cell immunity via a TLR4-dependent activation of dendritic cells. J Leukoc Biol 2013; 94:733-49. [PMID: 23825389 DOI: 10.1189/jlb.0912435] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The failure of Mycobacterium bovis BCG as a TB vaccine against TB reactivation suggests that latency-associated proteins should be included in alternative TB vaccine development. Further, antigens known to generate protective immunity against the strong Th1 stimulatory response to reactivated TB should be included in novel vaccine design. Recent studies have emphasized the importance of Rpfs from Mycobacterium tuberculosis in the reactivation process and cellular immunity. However, little is known about how RpfB mediates protective immunity against M. tuberculosis. Here, we investigated the functional roles and signaling mechanisms of RpfB in DCs and its implications in the development of T cell immunity. DCs treated with RpfB displayed features of mature and functional status, with elevated expression of cell surface molecules (CD80, CD86, and MHC class I and II) and proinflammatory cytokine production (TNF-α, IL-1β, IL-6, and IL-12p70). Activation of DCs was mediated by direct binding of RpfB to TLR4, followed by MyD88/TRIF-dependent signaling to MAPKs and NF-κB signaling pathways. Specifically, we found that the RpfB G5 domain is the most important part in RpfB binding to TLR4. RpfB-treated DCs effectively polarized naïve CD4(+) and CD8(+) T cells to secrete IFN-γ and IL-2. Importantly, RpfB induced the expansion of memory CD4(+)/CD8(+)CD44(high)CD62L(low) T cells in the spleen of M. tuberculosis-infected mice. Our data suggest that RpfB regulates innate immunity and activates adaptive immunity through TLR4, a finding that may help in the design of more effective vaccines.
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Affiliation(s)
- Jong-Seok Kim
- 2.Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
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16
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17
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Patel A, Kobinger GP. Evaluation of mismatched immunity against influenza viruses. Future Virol 2012. [DOI: 10.2217/fvl.12.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Prior immunity against influenza A viruses generates sterilizing immunity against matched (homologous) viruses and varying levels of protection against mismatched (heterologous) viruses of the same or different subtypes. Natural immunity carries the risk of high morbidity and mortality, therefore immunization offers the best preventative measure. Antibody responses against the viral hemagglutinin protein correlate with protection in humans and evidence increasingly supports a role for robust cellular immune responses. By exploiting mismatched immunity, current conventional and experimental vaccine candidates can improve the generation of cross-protective immune responses against heterologous viruses. Experimental vaccines such as virus-like particles, DNA vectors, viral vectors and broadly neutralizing antibodies are able to expand cross-protection through mismatched B- and T-cell responses. However, the generation of mismatched immune responses can also have the opposite effect and impair protective immunity. This review discusses mismatched immunity in the context of natural infection and immunization. Additionally, we discuss strategies to exploit mismatched immunity in order to improve current conventional and experimental influenza A virus vaccines.
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Affiliation(s)
- Ami Patel
- San Raffaele-Telethon Institute of Gene Therapy (hSR-TIGET), Milan, Italy Division of Gene Therapy & Regenerative Medicine, via Olgettina 58, Milan, Italy, 20132
| | - Gary P Kobinger
- Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada
- Special Pathogens Programme, National Microbiology Laboratory, Public Health Agency of Canada, Canadian Science Centre for Human & Animal Health, 1015 Arlington Street, Winnipeg, Manitoba, Canada, R3E 3R2
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Adjuvants and delivery systems in veterinary vaccinology: current state and future developments. Arch Virol 2010; 156:183-202. [PMID: 21170730 DOI: 10.1007/s00705-010-0863-1] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2010] [Accepted: 11/13/2010] [Indexed: 12/20/2022]
Abstract
Modern adjuvants should induce strong and balanced immune responses, and it is often desirable to induce specific types of immunity. As an example, efficient Th1-immunity-inducing adjuvants are highly in demand. Such adjuvants promote good cell-mediated immunity against subunit vaccines that have low immunogenicity themselves. The development of such adjuvants may take advantage of the increased knowledge of the molecular mechanisms and factors controlling these responses. However, knowledge of such molecular details of immune mechanisms is relatively scarce for species other than humans and laboratory rodents, and in addition, there are special considerations pertaining to the use of adjuvants in veterinary animals, such as production and companion animals. With a focus on veterinary animals, this review highlights a number of approaches being pursued, including cytokines, CpG oligonucleotides, microparticles and liposomes.
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Qiu Y, Liu Y, Qi Z, Wang W, Kou Z, Zhang Q, Liu G, Liu T, Yang Y, Yang X, Xin Y, Li C, Cui B, Huang S, Liu H, Zeng L, Wang Z, Yang R, Wang H, Wang X. Comparison of Immunological Responses of Plague Vaccines F1 + rV270 and EV76 in Chinese-Origin Rhesus Macaque, Macaca mulatta. Scand J Immunol 2010; 72:425-33. [DOI: 10.1111/j.1365-3083.2010.02456.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Casteleyn C, Doom M, Lambrechts E, Van den Broeck W, Simoens P, Cornillie P. Locations of gut-associated lymphoid tissue in the 3-month-old chicken: a review. Avian Pathol 2010; 39:143-50. [DOI: 10.1080/03079451003786105] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Qi Z, Zhou L, Zhang Q, Ren L, Dai R, Wu B, Wang T, Zhu Z, Yang Y, Cui B, Wang Z, Wang H, Qiu Y, Guo Z, Yang R, Wang X. Comparison of mouse, guinea pig and rabbit models for evaluation of plague subunit vaccine F1+rV270. Vaccine 2010; 28:1655-60. [DOI: 10.1016/j.vaccine.2009.02.078] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 02/19/2009] [Accepted: 02/24/2009] [Indexed: 11/15/2022]
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22
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Wang Z, Zhou L, Qi Z, Zhang Q, Dai R, Yang Y, Cui B, Wang H, Yang R, Wang X. Long-term observation of subunit vaccine F1-rV270 against Yersinia pestis in mice. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2010; 17:199-201. [PMID: 19940042 PMCID: PMC2812077 DOI: 10.1128/cvi.00305-09] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2009] [Revised: 09/14/2009] [Accepted: 11/12/2009] [Indexed: 11/20/2022]
Abstract
Long-term protection and antibody response for the subunit vaccine F1-rV270 were determined by using the mouse model. Antibodies to F1 and rV270 were still detectable over a period of 518 days. The complete protection against lethal challenge of Yersinia pestis could be achieved up to day 518 after primary immunization.
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Affiliation(s)
- Zuyun Wang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Lei Zhou
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Zhizhen Qi
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Qingwen Zhang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Ruixia Dai
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yonghai Yang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Baizhong Cui
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Hu Wang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Ruifu Yang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Xiaoyi Wang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China, Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
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23
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Heegaard PMH, Boas U, Sorensen NS. Dendrimers for vaccine and immunostimulatory uses. A review. Bioconjug Chem 2009; 21:405-18. [PMID: 19886668 DOI: 10.1021/bc900290d] [Citation(s) in RCA: 117] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Dendrimers are well-defined (monodisperse) synthetic globular polymers with a range of interesting chemical and biological properties. Chemical properties include the presence of multiple accessible surface functional groups that can be used for coupling biologically relevant molecules and methods that allow for precise heterofunctionalization of surface groups. Biologically, dendrimers are highly biocompatible and have predictable biodistribution and cell membrane interacting characteristics determined by their size and surface charge. Dendrimers have optimal characteristics to fill the need for efficient immunostimulating compounds (adjuvants) that can increase the efficiency of vaccines, as dendrimers can provide molecularly defined multivalent scaffolds to produce highly defined conjugates with small molecule immunostimulators and/or antigens. The review gives an overview on the use of dendrimers as molecularly defined carriers/presenters of small antigens, including constructs that have built-in immunostimulatory (adjuvant) properties, and as stand-alone adjuvants that can be mixed with antigens to provide efficient vaccine formulations. These approaches allow the preparation of molecularly defined vaccines with highly predictable and specific properties and enable knowledge-based vaccine design substituting the traditional empirically based approaches for vaccine development and production.
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Affiliation(s)
- Peter M H Heegaard
- Innate Immunology Group, National Veterinary Institute, Technical University of Denmark, Copenhagen, Denmark, and Chemical Institute, University of Copenhagen, Copenhagen, Denmark
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24
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Ellis JA, Gow SP, Goji N, Jones C, Workman A, Henderson G, Rhodes C, Alaniz G, Meinert TR, Tucker CM. Efficacy of a combination viral vaccine for protection of cattle against experimental infection with field isolates of bovine herpesvirus-1. J Am Vet Med Assoc 2009; 235:563-72. [PMID: 19719449 DOI: 10.2460/javma.235.5.563] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine whether a combination viral vaccine containing a modified-live bovine herpesvirus-1 (BHV-1) would protect calves from infection with virulent field strains of BHV-1 for weeks or months after vaccination. DESIGN Randomized controlled trial, performed in 2 replicates. ANIMALS 63 weaned 4- to 6-month-old crossbred beef calves seronegative for antibody against BHV-1. PROCEDURES Calves were randomly allocated to 1 of 2 treatment groups. Control calves (n = 10/replicate) received a combination modified-live mixed viral vaccine without BHV-1, and treatment calves (20 and 23/replicate) received a combination modified-live mixed viral vaccine containing BHV-1. Each group was challenged via aerosol with 1 of 2 field strains of BHV-1, 30 days after vaccination in replicate 1 and 97 days after vaccination in replicate 2. After challenge, calves were commingled in 1 drylot pen. Clinical signs, immune responses, and nasal shedding of virus were monitored for 10 days after challenge, after which the calves were euthanatized and tracheal lesions were assessed. RESULTS Vaccination stimulated production of BHV-1-specific IgG antibody that cross-neutralized several field and laboratory strains of BHV-1. Challenge with both field strains of BHV-1 resulted in moderate to severe respiratory tract disease in control calves. Treatment calves had significantly fewer signs of clinical disease, shed less BHV-1, had less or no weight loss after challenge, and had fewer tracheal lesions than control calves for at least 97 days after vaccination. CONCLUSIONS AND CLINICAL RELEVANCE Administration of the combination modified-live BHV-1 vaccine yielded significant disease-sparing effects in calves experimentally infected with virulent field strains of BHV-1.
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Affiliation(s)
- John A Ellis
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
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Buskas T, Thompson P, Boons GJ. Immunotherapy for cancer: synthetic carbohydrate-based vaccines. Chem Commun (Camb) 2009:5335-49. [PMID: 19724783 PMCID: PMC2787243 DOI: 10.1039/b908664c] [Citation(s) in RCA: 158] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Aberrant glycosylation of glycoproteins and glycolipids of cancer cells, which correlates with poor survival rates, is being exploited for the development of immunotherapies for cancer. In particular, advances in the knowledge of cooperation between the innate and adaptive system combined with the implementation of efficient synthetic methods for assembly of oligosaccharides and glycopeptides is providing avenues for the rationale design of vaccine candidates. In this respect, fully synthetic vaccine candidates show great promise because they incorporate only those elements requires for relevant immune responses, and hence do not suffer from immune suppression observed with classical carbohydrate-protein conjugate vaccines. Such vaccines are chemically well-defined and it is to be expected that they can be produced in a reproducible fashion. In this feature article, recent advances in the development of fully synthetic sub-unit carbohydrate-based cancer vaccines will be discussed.
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Affiliation(s)
- Therese Buskas
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA
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Casteleyn CR, Breugelmans S, Simoens P, Van den Broeck W. Morphological and immunological characteristics of the bovine temporal lymph node and hemal node. Vet Immunol Immunopathol 2008; 126:339-50. [DOI: 10.1016/j.vetimm.2008.09.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2007] [Revised: 06/03/2008] [Accepted: 09/12/2008] [Indexed: 11/16/2022]
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Histological characteristics and stereological volume assessment of the ovine tonsils. Vet Immunol Immunopathol 2007; 120:124-35. [DOI: 10.1016/j.vetimm.2007.07.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2007] [Revised: 06/29/2007] [Accepted: 07/11/2007] [Indexed: 11/21/2022]
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Abstract
Prevention is an important aspect of HIV care in the era of highly active antiretroviral therapy. Vaccines provide an excellent opportunity to avert certain infectious diseases for which patients with HIV infection are at increased risk due to immunosuppression. However, the state of immunosuppression reduces the efficacy of vaccines and increases the risk associated with certain vaccines. The study of vaccine responses in patients with HIV infection has greatly advanced the understanding of the underlying immune deficits, particularly with regards to reduced CD4 cell number and function and the level of immune activation associated with chronic viremia. This research has also solidified the safety and utility of vaccines for this population. Continued research of vaccine responses will further our understanding of the immune system and optimize the utilization of routine immunizations.
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Affiliation(s)
- Edgar Turner Overton
- Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8011, St. Louis, MO 63110, USA.
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Obaro SK, Ota MO. Sense and the science of childhood immunization: Can we achieve more with less? Vaccine 2006; 24:6460-7. [PMID: 16911848 DOI: 10.1016/j.vaccine.2006.06.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2006] [Revised: 06/17/2006] [Accepted: 06/20/2006] [Indexed: 11/28/2022]
Abstract
The threat of biological terrorism with small pox virus and a global influenza pandemic in the face of limited vaccine supply recently stimulated research into the evaluation of fractional dose vaccine regimens, with promising immunogenicity results. While this approach is not new, it has been less applied to vaccines for less sensational but nevertheless, significant killer diseases. This manuscript provides an overview of the basics of immunization as it applies to the current practice of immunization in children, comments on the untapped avenues for cost reduction of vaccine delivery, and the potential for saving more lives with currently available resources.
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Affiliation(s)
- Stephen K Obaro
- Children's Hospital of Pittsburgh, 3705 Fifth Avenue, Pittsburgh, PA 15213-2583, USA.
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Kim HR, Hong MS, Dan JM, Kang I. Altered IL-7Ralpha expression with aging and the potential implications of IL-7 therapy on CD8+ T-cell immune responses. Blood 2005; 107:2855-62. [PMID: 16357322 PMCID: PMC1440715 DOI: 10.1182/blood-2005-09-3560] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We investigated the effects of aging on the IL-7-mediated CD8+ T-cell survival pathway and of IL-7 therapy on T-cell immunity. Cells expressing IL-7 receptor (IL-7R) alphahigh and alphalow were identified in a CD45RA+ effector memory (EM(CD45RA+), CD45RA+CCR7-) CD8+ T-cell subset. Elderly subjects (65 years and older) had an increased frequency of EM(CD45RA+) IL-7Ralphalow) CD8+ T cells, leading to decreased STAT5 phosphorylation and survival responses to IL-7 compared with young subjects (40 years and younger). These EM(CD45RA+) IL-7Ralphalow cells were largely antigen experienced (CD27-CD28-), replicatively senescent (CD57+), and perforinhigh CD8+ T cells that had decreased IL-7Ralpha mRNA, independent of guanine and adenine binding protein alpha (GABPalpha) and growth factor independence-1 (GFI1) expression. In measuring T-cell receptor (TCR) repertoires of EM(CD45RA+) CD8+ T cells, the elderly had a limited repertoire in IL-7Ralphahigh and IL-7Ralphalow cells, whereas the young had a diverse repertoire in IL-7Ralphahigh but not in IL-7Ralphalow cells. These findings suggest that aging affects IL-7Ralpha expression by EM(CD45RA+) CD8+ T cells, leading to impaired signaling and survival responses to IL-7, and that IL-7 therapy may improve the survival of EM(CD45RA+) CD8+ T cells with a diverse TCR repertoire in the young but not in the elderly.
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Affiliation(s)
- Hang-Rae Kim
- Section of Rheumatology, Department of Internal Medicine, TAC S541C, Yale School of Medicine, PO Box 208031, New Haven, CT 06520.
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Ellis J, Waldner C, Rhodes C, Ricketts V. Longevity of protective immunity to experimental bovine herpesvirus-1 infection following inoculation with a combination modified-live virus vaccine in beef calves. J Am Vet Med Assoc 2005; 227:123-8. [PMID: 16013547 DOI: 10.2460/javma.2005.227.123] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine whether a combination viral vaccine containing modified-live bovine herpesvirus-1 (BHV-1) would protect calves from infection with a recent field isolate of BHV-1. DESIGN Randomized controlled trial. ANIMALS Sixty 4- to 6-month-old beef calves. PROCEDURE Calves were inoculated with a placebo 42 and 20 days prior to challenge (group 1; n = 10) or with the combination vaccine 42 and 20 days prior to challenge (group 2; 10), 146 and 126 days prior to challenge (group 3; 10), 117 and 96 days prior to challenge (group 4; 10), 86 and 65 days prior to challenge (group 5; 10), or 126 days prior to challenge (group 6; 10). All calves were challenged with BHV-1 via aerosol. Clinical signs, immune responses, and nasal shedding of virus were monitored for 14 days after challenge. RESULTS Vaccination elicited increases in BHV-1-specific IgG antibody titers. Challenge with BHV-1 resulted in mild respiratory tract disease in all groups, but vaccinated calves had less severe signs of clinical disease. Extent and duration of nasal BHV-1 shedding following challenge was significantly lower in vaccinated calves than in control calves. In calves that received 2 doses of the vaccine, the degree of protection varied with the interval between the last vaccination and challenge, as evidenced by increases in risk of clinical signs and extent and duration of viral shedding. CONCLUSIONS AND CLINICAL RELEVANCE Results suggest that this combination vaccine provided protection from infection with virulent BHV-1 and significantly reduced nasal shedding of the virus for at least 126 days after vaccination.
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Affiliation(s)
- John Ellis
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
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Abstract
Haemophilus influenzae type b (Hib) is one of the leading causes of invasive bacterial infection in young children worldwide. During childhood, acquisition of antibody directed against the polysaccharide capsule of the organism, presumably as a result of asymptomatic carriage, confers protection and disease is much less common after the age of 4 years. Like other polysaccharides, the polyribosyl ribitol phosphate (PRP) of the Hib capsule is a T-independent antigen and not immunogenic when administered as a vaccine in infancy. Because the highest rates of disease occur in the first 2 years of life, efficacious Hib vaccines have been designed by covalently linking the PRP capsule to a carrier protein that recruits T-cell help for the polysaccharide immune response and induces anti-PRP antibody production even in the first 6 months of life. Introduction of Hib protein-polysaccharide conjugate vaccines into many industrialized countries over the past 15 years has resulted in the virtual elimination of invasive Hib disease. However, despite the success of the vaccine programme several factors may interfere with the effectiveness of the vaccine in the routine programme, as observed in the UK recently. Such factors may include interference with other concomitant vaccines, waning immunity in the absence of booster doses of vaccine, and reduced natural boosting as a result of decreased transmission of the organism. However, the burden of disease remains highest in resource-poor countries and urgent efforts are needed to provide the benefits of this vaccine for children living in regions where it cannot be used for economic and logistical reasons.
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Affiliation(s)
- Dominic F Kelly
- Department of Paediatrics, John Radcliffe Hospital, University of Oxford, Headington, Oxford, UK
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