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Passos LSA, Lupieri A, Becker-Greene D, Aikawa E. Innate and adaptive immunity in cardiovascular calcification. Atherosclerosis 2020; 306:59-67. [PMID: 32222287 DOI: 10.1016/j.atherosclerosis.2020.02.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/10/2020] [Accepted: 02/20/2020] [Indexed: 12/19/2022]
Abstract
Despite the focus placed on cardiovascular research, the prevalence of vascular and valvular calcification is increasing and remains a leading contributor of cardiovascular morbidity and mortality. Accumulating studies provide evidence that cardiovascular calcification is an inflammatory disease in which innate immune signaling becomes sustained and/or excessive, shaping a deleterious adaptive response. The triggering immune factors and subsequent inflammatory events surrounding cardiovascular calcification remain poorly understood, despite sustained significant research interest and support in the field. Most studies on cardiovascular calcification focus on innate cells, particularly macrophages' ability to release pro-osteogenic cytokines and calcification-prone extracellular vesicles and apoptotic bodies. Even though substantial evidence demonstrates that macrophages are key components in triggering cardiovascular calcification, the crosstalk between innate and adaptive immune cell components has not been adequately addressed. The only therapeutic options currently used are invasive procedures by surgery or transcatheter intervention. However, no approved drug has shown prophylactic or therapeutic effectiveness. Conventional diagnostic imaging is currently the best method for detecting, measuring, and assisting in the treatment of calcification. However, these common imaging modalities are unable to detect early subclinical stages of disease at the level of microcalcifications; therefore, the vast majority of patients are diagnosed when macrocalcifications are already established. In this review, we unravel the current knowledge of how innate and adaptive immunity regulate cardiovascular calcification; and put forward differences and similarities between vascular and valvular disease. Additionally, we highlight potential immunomodulatory drugs with the potential to target calcification and propose avenues in need of further translational inquiry.
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Affiliation(s)
- Livia S A Passos
- Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Adrien Lupieri
- Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Dakota Becker-Greene
- Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Elena Aikawa
- Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA; Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA; Department of Pathology, Sechenov First Moscow State Medical University, Moscow, 119992, Russia.
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52
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Tsai MH, Chuang CC, Chen CC, Yen HJ, Cheng KM, Chen XA, Shyu HF, Lee CY, Young JJ, Kau JH. Nanoparticles assembled from fucoidan and trimethylchitosan as anthrax vaccine adjuvant: In vitro and in vivo efficacy in comparison to CpG. Carbohydr Polym 2020; 236:116041. [PMID: 32172855 DOI: 10.1016/j.carbpol.2020.116041] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/15/2019] [Accepted: 02/19/2020] [Indexed: 12/13/2022]
Abstract
Fucoidan/trimethylchitosan nanoparticles (FUC-TMC-NPs) have the potential to improve the immunostimulating efficiency of anthrax vaccine adsorbed (AVA). FUC-TMC-NPs with positive (+) or negative (-) surface charges were prepared via polyelectrolyte complexation, both charged NP types permitted high viability and presented no cytotoxicity on L929, A549 and JAWS II dendritic cells. Flow cytometry measurements indicated lower (+)-FUC-TMC-NPs internalization levels than (-)-FUC-TMC-NPs, yet produced high levels of pro-inflammatory cytokines IFN-γ, IL12p40, and IL-4. Moreover, fluorescence microscope images proved that both charged NP could deliver drugs into the nucleus. In vivo studies on A/J mice showed that (+)-FUC-TMC-NPs carrying AVA triggered an efficient response with a higher IgG anti-PA antibody titer than AVA with CpG oligodeoxynucleotides, and yielded 100 % protection when challenged with the anthracis spores. Furthermore, PA-specific IgG1 and IgG2a analysis confirmed that (+)-FUC-TMC-NPs strongly stimulated humoral immunity. In conclusion, (+)-FUC-TMC-NP is promising anthrax vaccine adjuvant as an alternative to CpG.
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Affiliation(s)
- Meng-Hung Tsai
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei City 11490, Taiwan, ROC; Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Chuan-Chang Chuang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei City 11490, Taiwan, ROC; Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Cheng-Cheung Chen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Hui-Ju Yen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Kuang-Ming Cheng
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Xin-An Chen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Huey-Fen Shyu
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Chia-Ying Lee
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC
| | - Jenn-Jong Young
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC.
| | - Jyh-Hwa Kau
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei City 11490, Taiwan, ROC; Institute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC.
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Wang C, Huang X, Wu Y, Wang J, Li F, Guo G. Tumor Cell-associated Exosomes Robustly Elicit Anti-tumor Immune Responses through Modulating Dendritic Cell Vaccines in Lung Tumor. Int J Biol Sci 2020; 16:633-643. [PMID: 32025211 PMCID: PMC6990923 DOI: 10.7150/ijbs.38414] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 12/14/2019] [Indexed: 12/15/2022] Open
Abstract
DC vaccine-based immunotherapy is emerging as a novel therapeutic strategy for cancer treatment, however, antitumor effect of DC vaccines based on tumor cell lysates (TCLs) remains unsatisfactory due to poor immunogenicity of tumor antigens. Although tumor-associated exosomes (TAEs) have been reported as a promising antigen for DC vaccines, it remains unclear how TAE-based DC vaccine induced antitumor immunity in lung cancer. Methods: In the present study, we extracted TAEs from the supernatant of tumor cell culture medium, and compared the effect of TAEs with TCLs on DCs. To further evaluate the therapeutic effect of DCTAE, we used immunofluorescence and flow cytometry to evaluate the apoptosis of tumor tissue, tumor-infiltrating CD8+ T cells and Tregs in TDLNs and spleen. Then the levels of cytokines of IL-12, IFN-γ, L-10 and TGF-β were quantified by ELISA assays. Results: Our data showed that TAEs were more potent than TCLs to promote DC maturation and enhance MHC cross presentation, which directly contributed to more robust tumor-specific cytotoxic T lymphocyte (CTL) response. More importantly, TAEs reduced the expression of PD-L1 of DCs, thereby led to down-regulated population of Tregs in vitro. Moreover, DCTAE remarkably suppressed the tumor growth and prolonged survival rate in vivo, due to participance of CD8+ T cells and decreased Tregs in TDLNs and spleen. Conclusion: TAEs could serve to improve vaccine-elicited immunotherapy by triggering stronger DC-mediated immune responses and decreasing Tregs in the tumor microenvironment.
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Affiliation(s)
- Ce Wang
- Department of anatomy, School of Medicine, Jinan University, Guangzhou 510632, China.,Shenzhen Key Laboratory of Stem cell research and clinical transformation, Guangdong Engineering Technology Research Center of Stem cell and Cell therapy, Translational Medicine Collaborative Innovation Center, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen 518020, China
| | - Xue Huang
- Shenzhen Key Laboratory of Stem cell research and clinical transformation, Guangdong Engineering Technology Research Center of Stem cell and Cell therapy, Translational Medicine Collaborative Innovation Center, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen 518020, China
| | - Yingjuan Wu
- Shenzhen Key Laboratory of Stem cell research and clinical transformation, Guangdong Engineering Technology Research Center of Stem cell and Cell therapy, Translational Medicine Collaborative Innovation Center, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen 518020, China
| | - Jingbo Wang
- Shenzhen Key Laboratory of Stem cell research and clinical transformation, Guangdong Engineering Technology Research Center of Stem cell and Cell therapy, Translational Medicine Collaborative Innovation Center, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen 518020, China
| | - Furong Li
- Shenzhen Key Laboratory of Stem cell research and clinical transformation, Guangdong Engineering Technology Research Center of Stem cell and Cell therapy, Translational Medicine Collaborative Innovation Center, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen 518020, China
| | - Guoqing Guo
- Department of anatomy, School of Medicine, Jinan University, Guangzhou 510632, China
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Xiang Z, Kurupati RK, Li Y, Kuranda K, Zhou X, Mingozzi F, High KA, Ertl HCJ. The Effect of CpG Sequences on Capsid-Specific CD8 + T Cell Responses to AAV Vector Gene Transfer. Mol Ther 2019; 28:771-783. [PMID: 31839483 DOI: 10.1016/j.ymthe.2019.11.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 11/06/2019] [Accepted: 11/11/2019] [Indexed: 12/21/2022] Open
Abstract
Transfer of genes by adeno-associated virus (AAV) vectors is benefiting patients with particular genetic defects. Challenges remain by rejection of AAV-transduced cells, which may be caused by CD8+ T lymphocytes directed to AAV capsid antigens. Reducing the number of CpG motifs from the genome of AAV vectors reduces expansion of naive T cells directed against an epitope within the capsid. In contrast, AAV capsid-specific memory CD8+ T cells respond more vigorously to AAV vectors lacking CpG motifs than to those with CpG motifs presumably reflecting dampening of T cell expansion by cytokines from the innate immune system. Depending on the purification method, AAV vector preparations can contain substantial amounts of empty AAV particles that failed to package the genome. Others have used empty particles as decoys to AAV-neutralizing antibodies. We tested if empty AAV vectors given alone or mixed with genome-containing AAV vectors induce proliferation of naive or memory CD8+ T cells directed to an antigen within an AAV capsid. Naive CD8+ T cells failed to respond to empty AAV vectors, which in contrast induced expansion of AAV-specific memory CD8+ T cells.
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Affiliation(s)
| | | | - Yan Li
- Wistar Institute, Philadelphia, PA 19104, USA
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Gao A, Hu XL, Saeed M, Chen BF, Li YP, Yu HJ. Overview of recent advances in liposomal nanoparticle-based cancer immunotherapy. Acta Pharmacol Sin 2019; 40:1129-1137. [PMID: 31371782 PMCID: PMC6786406 DOI: 10.1038/s41401-019-0281-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 06/23/2019] [Indexed: 01/01/2023] Open
Abstract
The clinical performance of conventional cancer therapy approaches (surgery, radiotherapy, and chemotherapy) has been challenged by tumor metastasis and recurrence that is mainly responsible for cancer-caused mortalities. The cancer immunotherapy is being emerged nowadays as a promising therapeutic modality in order to achieve a highly efficient therapeutic performance while circumventing tumor metastasis and relapse. Liposomal nanoparticles (NPs) may serve as an ideal platform for systemic delivery of the immune modulators. In this review, we summarize the cutting-edge progresses in liposomal NPs for cancer immunotherapy, with focus on dendritic cells, T cells, tumor cells, natural killer cells, and macrophages. The review highlights the major challenges and provides a perspective regarding the clinical translation of liposomal nanoparticle-based immunotherapy.
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56
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Hofford RS, Russo SJ, Kiraly DD. Neuroimmune mechanisms of psychostimulant and opioid use disorders. Eur J Neurosci 2019; 50:2562-2573. [PMID: 30179286 PMCID: PMC6531363 DOI: 10.1111/ejn.14143] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 07/20/2018] [Accepted: 08/28/2018] [Indexed: 12/11/2022]
Abstract
Substance use disorders are global health problems with few effective treatment options. Unfortunately, most potential pharmacological treatments are hindered by abuse potential of their own, limited efficacy, or adverse side effects. As a consequence, there is a pressing need for the development of addiction treatments with limited abuse potential and fewer off target effects. Given the difficulties in developing new pharmacotherapies for substance use disorders, there has been growing interest in medications that act on non-traditional targets. Recent evidence suggests a role for dysregulated immune signaling in the pathophysiology of multiple psychiatric diseases. While there is evidence that immune responses in the periphery and the central nervous system are altered by exposure to drugs of abuse, the contributions of neuroimmune interactions to addictive behaviors are just beginning to be appreciated. In this review, we discuss the data on immunological changes seen in clinical populations with substance use disorders, as well as in translational animal models of addiction. Importantly, we highlight those mechanistic findings showing causal roles for central or peripheral immune mediators in substance use disorder and appropriate animal models. Based on the literature reviewed here, it is clear that brain-immune system interactions in substance use disorders are much more complex and important than previously understood. While much work remains to be done, there are tremendous potential therapeutic implications for immunomodulatory treatments in substance use disorders.
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Affiliation(s)
- Rebecca S Hofford
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Scott J Russo
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York
- Fishberg Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Drew D Kiraly
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York
- Fishberg Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
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57
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Nowill AE, Fornazin MC, Spago MC, Dorgan Neto V, Pinheiro VRP, Alexandre SSS, Moraes EO, Souza GHMF, Eberlin MN, Marques LA, Meurer EC, Franchi GC, de Campos-Lima PO. Immune Response Resetting in Ongoing Sepsis. THE JOURNAL OF IMMUNOLOGY 2019; 203:1298-1312. [PMID: 31358659 DOI: 10.4049/jimmunol.1900104] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 06/28/2019] [Indexed: 01/03/2023]
Abstract
Cure of severe infections, sepsis, and septic shock with antimicrobial drugs is a challenge because morbidity and mortality in these conditions are essentially caused by improper immune response. We have tested the hypothesis that repeated reactivation of established memory to pathogens may reset unfavorable immune responses. We have chosen for this purpose a highly stringent mouse model of polymicrobial sepsis by cecum ligation and puncture. Five weeks after priming with a diverse Ag pool, high-grade sepsis was induced in C57BL/6j mice that was lethal in 24 h if left untreated. Antimicrobial drug (imipenem) alone rescued 9.7% of the animals from death, but >5-fold higher cure rate could be achieved by combining imipenem and two rechallenges with the Ag pool (p < 0.0001). Antigenic stimulation fine-tuned the immune response in sepsis by contracting the total CD3+ T cell compartment in the spleen and disengaging the hyperactivation state in the memory T subsets, most notably CD8+ T cells, while preserving the recovery of naive subsets. Quantitative proteomics/lipidomics analyses revealed that the combined treatment reverted the molecular signature of sepsis for cytokine storm, and deregulated inflammatory reaction and proapoptotic environment, as well as the lysophosphatidylcholine/phosphatidylcholine ratio. Our results showed the feasibility of resetting uncontrolled hyperinflammatory reactions into ordered hypoinflammatory responses by memory reactivation, thereby reducing morbidity and mortality in antibiotic-treated sepsis. This beneficial effect was not dependent on the generation of a pathogen-driven immune response itself but rather on the reactivation of memory to a diverse Ag pool that modulates the ongoing response.
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Affiliation(s)
- Alexandre E Nowill
- Integrated Center for Pediatric OncoHaematological Research, State University of Campinas, Campinas 13083-888, Brazil;
| | - Márcia C Fornazin
- Integrated Center for Pediatric OncoHaematological Research, State University of Campinas, Campinas 13083-888, Brazil
| | - Maria C Spago
- Integrated Center for Pediatric OncoHaematological Research, State University of Campinas, Campinas 13083-888, Brazil
| | - Vicente Dorgan Neto
- Surgery Department, Santa Casa School of Medical Sciences, São Paulo 01221-020, Brazil
| | - Vitória R P Pinheiro
- Integrated Center for Pediatric OncoHaematological Research, State University of Campinas, Campinas 13083-888, Brazil
| | - Simônia S S Alexandre
- Integrated Center for Pediatric OncoHaematological Research, State University of Campinas, Campinas 13083-888, Brazil;
| | - Edgar O Moraes
- School of Engineering, Mackenzie Presbyterian University, São Paulo 01302-907, Brazil
| | - Gustavo H M F Souza
- Mass Spectrometry Research and Development Laboratory, Health Sciences Department, Waters Corporation, Barueri 06455-020, Brazil
| | - Marcos N Eberlin
- School of Engineering, Mackenzie Presbyterian University, São Paulo 01302-907, Brazil
| | - Lygia A Marques
- Thomson Mass Spectrometry Laboratory, Institute of Chemistry, State University of Campinas, Campinas 13083-859, Brazil; and
| | - Eduardo C Meurer
- Thomson Mass Spectrometry Laboratory, Institute of Chemistry, State University of Campinas, Campinas 13083-859, Brazil; and
| | - Gilberto C Franchi
- Integrated Center for Pediatric OncoHaematological Research, State University of Campinas, Campinas 13083-888, Brazil
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Pouriayevali MH, Bamdad T, Sadat SM, Sadeghi SA, Sabahi F, Mahdavi M, Aghasadeghi MR. Listeriolysin O immunogenetic adjuvant enhanced potency of hepatitis C virus NS3 DNA vaccine. IUBMB Life 2019; 71:1645-1652. [PMID: 31298809 DOI: 10.1002/iub.2109] [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: 03/10/2019] [Accepted: 06/05/2019] [Indexed: 12/16/2022]
Abstract
Hepatitis C virus (HCV) is a major health problem all over the world. Among HCV proteins, nonstructural protein 3 (NS3) is one of the most promising target for anti-HCV therapy and a candidate for vaccine design. DNA vaccine is an efficient approach to stimulate antigen-specific immunity but the main problem with that is less immunogenic efficiency in comparison with traditional vaccines. Several approaches have been applied to enhance the immunogenicity of DNA. Recently, bacteria-derived substances are considered as one of the most attractive adjuvants for vaccines, which among them, Listeriolysin O (LLO) of Listeria monocytogenes is a toxin with an extremely immunogenic feature. We investigated detoxified form of LLO gene as genetic adjuvant to modulate NS3 DNA vaccine potency. Immunogenic truncated NS3 gene sequence of HCV (1095-1380aa) and detoxified LLO gene region (5-441aa) were amplified by PCR and cloned into the pcDNA3.1 plasmid separately. The expression of recombinant proteins (pc-NS3, pLLO) was confirmed in HEK293T cell line by western blotting. BALB/c mice models received three doses of different formula of plasmids in two-week intervals and two weeks after the final immunization, the immune responses were evaluated by specific total antibody level, lymphocyte proliferation, cytotoxicity, and cytokine levels assays. To evaluate in vivo cytotoxic activity, tumor challenge was performed. The recombinant plasmids were successfully expressed in mammalian cell line, and coadministration of pc-NS3 with pLLO induced the highest titer of total IgG against NS3 antigen compared with other controls. Determination of IgG subclasses confirmed the efficient increase in mixed responses with Th1 dominancy. Furthermore, significant levels of cytokines (p < .05) and lymphocyte proliferation responses (p < .05) indicated the superiority of this regimen. The findings may have important implication for LLO gene application as genetic adjuvant in immune response against HCV.
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Affiliation(s)
- Mohammad H Pouriayevali
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
- Department of Arboviruses and Viral Hemorrhagic Fevers (National Reference Laboratory), Pasteur Institute of Iran, Tehran, Iran
| | - Taravat Bamdad
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Seyed M Sadat
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Seyed A Sadeghi
- Department of Research and Development of Hepatitis A vaccine, Pasteur Institute of Iran, Alborz, Iran
| | - Farzaneh Sabahi
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mehdi Mahdavi
- Department of Immunology, Pasteur Institute of Iran, Tehran, Iran
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Dingman R, Balu-Iyer SV. Immunogenicity of Protein Pharmaceuticals. J Pharm Sci 2019; 108:1637-1654. [PMID: 30599169 PMCID: PMC6720129 DOI: 10.1016/j.xphs.2018.12.014] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/19/2018] [Accepted: 12/20/2018] [Indexed: 02/07/2023]
Abstract
Protein therapeutics have drastically changed the landscape of treatment for many diseases by providing a regimen that is highly specific and lacks many off-target toxicities. The clinical utility of many therapeutic proteins has been undermined by the potential development of unwanted immune responses against the protein, limiting their efficacy and negatively impacting its safety profile. This review attempts to provide an overview of immunogenicity of therapeutic proteins, including immune mechanisms and factors influencing immunogenicity, impact of immunogenicity, preclinical screening methods, and strategies to mitigate immunogenicity.
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Affiliation(s)
- Robert Dingman
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, New York 14214
| | - Sathy V Balu-Iyer
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, New York 14214.
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60
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Mirza AH, Thomas G, Ottensmeier CH, King EV. Importance of the immune system in head and neck cancer. Head Neck 2019; 41:2789-2800. [DOI: 10.1002/hed.25716] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 10/21/2018] [Accepted: 02/07/2019] [Indexed: 12/13/2022] Open
Affiliation(s)
- Adal H. Mirza
- Somers Cancer Research Building MP824; Southampton General Hospital; Southampton United Kingdom
- Department of Head and Neck Surgery; Poole Hospital NHS Foundation Trust; Poole United Kingdom
| | - Gareth Thomas
- Somers Cancer Research Building MP824; Southampton General Hospital; Southampton United Kingdom
| | | | - Emma V. King
- Somers Cancer Research Building MP824; Southampton General Hospital; Southampton United Kingdom
- Department of Head and Neck Surgery; Poole Hospital NHS Foundation Trust; Poole United Kingdom
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61
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Immunoregulatory activity of polysaccharides from Tanyang Congou black tea on H22 tumor-bearing mice. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2019. [DOI: 10.1007/s11694-019-00078-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Assessment of Dietary Patterns Represents a Potential, Yet Variable, Measure of Inflammatory Status: A Review and Update. DISEASE MARKERS 2019; 2019:3102870. [PMID: 30805036 PMCID: PMC6360584 DOI: 10.1155/2019/3102870] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 01/06/2019] [Indexed: 12/14/2022]
Abstract
Chronic low-grade, systemic inflammation is a well-characterized risk factor in the development of chronic metabolic diseases, such as cardiovascular disease, type 2 diabetes, and metabolic syndrome. Diet could be an effective strategy for reducing inflammation associated with chronic disease. While anti-inflammatory properties of isolated dietary bioactive and functional foods have been routinely studied, the evaluation of dietary patterns on inflammation warrants further review-especially given the recent inclusion of dietary pattern recommendations into dietary guidelines and policies. Therefore, the objective of this narrative review is to examine current evidence linking diet to low-grade, systemic inflammation within the context of chronic disease. Specifically, we provide an update on the findings from human trials that have characterized anti-inflammatory properties of dietary patterns, defined by various methods and indexes. Given the complexity of interpreting results from dietary pattern analysis, we further present recent evidence on the anti-inflammatory roles of isolated bioactive nutrients and functional foods that are common components of distinct dietary patterns, in addition to considerations for interpreting dietary pattern research, population-specific dietary recommendations, and future studies. Overall, we observe a vast range of variability in the evidence from observational studies that have evaluated the relationships between healthy dietary patterns and inflammatory markers. These studies highlight the need for additional intervention studies with study designs that account for metabolic status, diversity in populations, breadth of inflammatory measurements, fasting vs. postprandial effects of diet, and control of confounding factors (e.g., genotype, microbiome profiles, and dietary adherence) in order to better understand the effect that diet has, as a whole, on inflammation. These strategies will help to strengthen diet recommendations aimed at reducing inflammation and chronic disease risk.
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64
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Hobernik D, Bros M. DNA Vaccines-How Far From Clinical Use? Int J Mol Sci 2018; 19:ijms19113605. [PMID: 30445702 PMCID: PMC6274812 DOI: 10.3390/ijms19113605] [Citation(s) in RCA: 289] [Impact Index Per Article: 48.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/07/2018] [Accepted: 11/09/2018] [Indexed: 12/12/2022] Open
Abstract
Two decades ago successful transfection of antigen presenting cells (APC) in vivo was demonstrated which resulted in the induction of primary adaptive immune responses. Due to the good biocompatibility of plasmid DNA, their cost-efficient production and long shelf life, many researchers aimed to develop DNA vaccine-based immunotherapeutic strategies for treatment of infections and cancer, but also autoimmune diseases and allergies. This review aims to summarize our current knowledge on the course of action of DNA vaccines, and which factors are responsible for the poor immunogenicity in human so far. Important optimization steps that improve DNA transfection efficiency comprise the introduction of DNA-complexing nano-carriers aimed to prevent extracellular DNA degradation, enabling APC targeting, and enhanced endo/lysosomal escape of DNA. Attachment of virus-derived nuclear localization sequences facilitates nuclear entry of DNA. Improvements in DNA vaccine design include the use of APC-specific promotors for transcriptional targeting, the arrangement of multiple antigen sequences, the co-delivery of molecular adjuvants to prevent tolerance induction, and strategies to circumvent potential inhibitory effects of the vector backbone. Successful clinical use of DNA vaccines may require combined employment of all of these parameters, and combination treatment with additional drugs.
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Affiliation(s)
- Dominika Hobernik
- Department of Dermatology, University Medical Center, 55131 Mainz, Germany.
| | - Matthias Bros
- Department of Dermatology, University Medical Center, 55131 Mainz, Germany.
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65
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Medina-Rodriguez EM, Lowell JA, Worthen RJ, Syed SA, Beurel E. Involvement of Innate and Adaptive Immune Systems Alterations in the Pathophysiology and Treatment of Depression. Front Neurosci 2018; 12:547. [PMID: 30174579 PMCID: PMC6107705 DOI: 10.3389/fnins.2018.00547] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/20/2018] [Indexed: 12/19/2022] Open
Abstract
Major depressive disorder (MDD) is a prevalent and debilitating disorder, often fatal. Treatment options are few and often do not provide immediate relief to the patients. The increasing involvement of inflammation in the pathology of MDD has provided new potential therapeutic avenues. Cytokine levels are elevated in the blood and cerebrospinal fluid of MDD patients whereas immune cells often exhibit an immunosuppressed phenotype in MDD patients. Blocking cytokine actions in patients exhibiting MDD show some antidepressant efficacy. However, the role of cytokines, and the immune response in MDD patients remain to be determined. We reviewed here the roles of the innate and adaptive immune systems in MDD, as well as potential mechanisms whereby the immune response might be regulated in MDD.
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Affiliation(s)
- Eva M Medina-Rodriguez
- Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Jeffrey A Lowell
- Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Ryan J Worthen
- Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Shariful A Syed
- Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Eléonore Beurel
- Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, United States.,Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL, United States
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66
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Andersen CJ. Impact of Dietary Cholesterol on the Pathophysiology of Infectious and Autoimmune Disease. Nutrients 2018; 10:E764. [PMID: 29899295 PMCID: PMC6024721 DOI: 10.3390/nu10060764] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/02/2018] [Accepted: 06/11/2018] [Indexed: 01/02/2023] Open
Abstract
Cellular cholesterol metabolism, lipid raft formation, and lipoprotein interactions contribute to the regulation of immune-mediated inflammation and response to pathogens. Lipid pathways have been implicated in the pathogenesis of bacterial and viral infections, whereas altered lipid metabolism may contribute to immune dysfunction in autoimmune diseases, such as systemic lupus erythematosus, multiple sclerosis, and rheumatoid arthritis. Interestingly, dietary cholesterol may exert protective or detrimental effects on risk, progression, and treatment of different infectious and autoimmune diseases, although current findings suggest that these effects are variable across populations and different diseases. Research evaluating the effects of dietary cholesterol, often provided by eggs or as a component of Western-style diets, demonstrates that cholesterol-rich dietary patterns affect markers of immune inflammation and cellular cholesterol metabolism, while additionally modulating lipoprotein profiles and functional properties of HDL. Further, cholesterol-rich diets appear to differentially impact immunomodulatory lipid pathways across human populations of variable metabolic status, suggesting that these complex mechanisms may underlie the relationship between dietary cholesterol and immunity. Given the Dietary Guidelines for Americans 2015⁻2020 revision to no longer include limitations on dietary cholesterol, evaluation of dietary cholesterol recommendations beyond the context of cardiovascular disease risk is particularly timely. This review provides a comprehensive and comparative analysis of significant and controversial studies on the role of dietary cholesterol and lipid metabolism in the pathophysiology of infectious disease and autoimmune disorders, highlighting the need for further investigation in this developing area of research.
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67
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Kang T, Li C, Du T, Wu Y, Yang Y, Liu X, Zhang Q, Xu X, Gou M. A biomimetic nanoparticle-enabled toxoid vaccine against melittin. Int J Nanomedicine 2018; 13:3251-3261. [PMID: 29910613 PMCID: PMC5987856 DOI: 10.2147/ijn.s156346] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background Melittin, the main active peptide ingredient of bee venom, can cause severe cell membrane lysis due to its robust interaction with negatively charged phospholipids. So far, no effective anti-melittin vaccine has been developed to protect people from undesired melittin intoxication. Methods Herein, we prepared a polydiacetylene (PDA) nanoparticle with cell membrane-mimic surface to complex melittin, forming an anti-melittin vaccine (PDA–melittin). Results PDA nanoparticles could effectively combine with melittin and neutralize its toxicity. PDA–melittin nanocomplex is demonstrated to enhance melittin uptake by DCs and stimulate strong melittin-specific immunity. Mice immunized with PDA–melittin nanocomplex showed higher survival rate after exposion to melittin than untreated mice. Conclusion The PDA–melittin nanocomplex can efficiently and safely generate a specific immunity against melittin to protect body from melittin intoxication, providing a new method with potential clinical application for the treatment of melittin intoxication.
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Affiliation(s)
- Tianyi Kang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Chenyang Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China.,Shanghai Institutes for Biological Science, Chinese Academy of Science, Shanghai 200031, People's Republic of China
| | - Ting Du
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Yujiao Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Yuping Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Xuan Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Qianqian Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Xiaoping Xu
- West China School of Pharmacy, Sichuan University, Chengdu 610041, People's Republic of China
| | - Maling Gou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China.,Co-Innovation Center for Micro/Nano Optoelectronic Materials and Devices, Chongqing 402160, People's Republic of China
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68
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Boyiadzis MM, Kirkwood JM, Marshall JL, Pritchard CC, Azad NS, Gulley JL. Significance and implications of FDA approval of pembrolizumab for biomarker-defined disease. J Immunother Cancer 2018; 6:35. [PMID: 29754585 PMCID: PMC5950135 DOI: 10.1186/s40425-018-0342-x] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/19/2018] [Indexed: 12/16/2022] Open
Abstract
The U.S. Food and Drug Administration (FDA) recently approved pembrolizumab, an anti- programmed cell death protein 1 cancer immunotherapeutic, for use in advanced solid tumors in patients with the microsatellite-high/DNA mismatch repair-deficient biomarker. This is the first example of a tissue-agnostic FDA approval of a treatment based on a patient’s tumor biomarker status, rather than on tumor histology. Here we discuss key issues and implications arising from the biomarker-based disease classification implied by this historic approval.
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Affiliation(s)
| | - John M Kirkwood
- University of Pittsburgh Hillman Cancer Center, Pittsburgh, PA, USA
| | | | | | | | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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69
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Kar P, Ruiz-Perez L, Arooj M, Mancera RL. Current methods for the prediction of T-cell epitopes. Pept Sci (Hoboken) 2018. [DOI: 10.1002/pep2.24046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Prattusha Kar
- School of Pharmacy and Biomedical Sciences; Curtin Health Innovation Research Institute and Curtin Institute for Computation, Curtin University; Perth Western Australia 6845 Australia
| | - Lanie Ruiz-Perez
- School of Pharmacy and Biomedical Sciences; Curtin Health Innovation Research Institute and Curtin Institute for Computation, Curtin University; Perth Western Australia 6845 Australia
| | - Mahreen Arooj
- School of Pharmacy and Biomedical Sciences; Curtin Health Innovation Research Institute and Curtin Institute for Computation, Curtin University; Perth Western Australia 6845 Australia
| | - Ricardo L. Mancera
- School of Pharmacy and Biomedical Sciences; Curtin Health Innovation Research Institute and Curtin Institute for Computation, Curtin University; Perth Western Australia 6845 Australia
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70
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Huang CH, Huang CY, Huang MH. Unsaturated Squalene Content in Emulsion Vaccine Adjuvants Plays a Crucial Role in ROS-Mediated Antigen Uptake and Cellular Immunity. Mol Pharm 2017; 15:420-429. [PMID: 29237267 DOI: 10.1021/acs.molpharmaceut.7b00800] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Emulsion-based adjuvants have been demonstrated to be an effective tool in increasing vaccine efficacy. Here, we aimed to launch a mechanistic study on how emulsion adjuvants interact with immune cells and to elucidate the roles of the core oil in vaccine immunogenicity. Our results showed that treatment of dendritic cells (DCs) and splenocytes with a squalene-based emulsion (referred as SqE) induced reactive oxidative species (ROS) production and resulted in an increase in apoptotic and necrotic cells in a concentration- and time-dependent manner. Furthermore, DCs cocultured with cellular debris of SqE-pretreated splenocytes resulted in a higher level of ovalbumin (OVA) antigen uptake by DCs than those cocultured with untreated splenocytes. Interestingly, the potency was rather attenuated when splenocytes were pretreated with N-acetyl-cysteine, an antioxidant. Notably, SqE possesses a high impact on eliciting ROS-mediated antigen uptake compared with a squalane-based emulsion (SqA). Concordantly, immunogenicity studies have shown that SqE is better able than SqA to activate antigen-presenting cells, and to enhance antigen-specific T-cell immunity. Taken together, our results show that unsaturated squalene oil cored within emulsions plays a crucial role in ROS-mediated antigen uptake and cellular immunity, providing a basis for the design and development of vaccine adjuvant.
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Affiliation(s)
- Chung-Hsiung Huang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes , 35053 Miaoli, Taiwan
| | - Chiung-Yi Huang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes , 35053 Miaoli, Taiwan
| | - Ming-Hsi Huang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes , 35053 Miaoli, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University , 40402 Taichung, Taiwan
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71
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A simple method for measuring immune complex-mediated, Fc gamma receptor dependent antigen-specific activation of primary human T cells. J Immunol Methods 2017; 454:32-39. [PMID: 29258749 DOI: 10.1016/j.jim.2017.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/01/2017] [Accepted: 12/07/2017] [Indexed: 12/21/2022]
Abstract
Immune complex (IC) deposition of IgG containing autologous antigens has been observed in autoimmunity. This can lead to IC-mediated antigen uptake and presentation by antigen presenting cells (APC) driving T cell dependent inflammation. IgG receptors (FcγRs) have been suggested to be involved in this process. Since ICs have been linked to autoimmune diseases, interfering with IC mediated effects on APCs and subsequent autoimmune T cell activation via FcγR blockade may be therapeutically beneficial. However, this is currently challenging due to a lack of translatable animal models and specific human in vitro assays to study IC-driven T cell responses. Here, we developed a simple cellular assay to study IC-mediated T cell activation in vitro using human peripheral blood mononuclear cells and tetanus toxoid as a model antigen. We observed that tetanus ICs led to a strong induction of T cell proliferation and release of pro-inflammatory cytokines, which are hallmarks of chronic inflammation. This process was exacerbated when compared to tetanus toxoid challenge alone. IC-mediated T cell effects were FcγR dependent and inhibited by high-dose intravenous IgG (IVIg), a drug often used for the clinical treatments of autoimmune diseases. Similar effects were also seen using a hepatitis antigen. Consequently, we propose our assay as a rapid yet robust alternative to more labour-intense and time-consuming protocols, for example involving separate maturation of dendritic cells followed by T cell co-culture to study antigen specific primary T cell activation.
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72
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Mayr LM, Su B, Moog C. Non-Neutralizing Antibodies Directed against HIV and Their Functions. Front Immunol 2017; 8:1590. [PMID: 29209323 PMCID: PMC5701973 DOI: 10.3389/fimmu.2017.01590] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 11/06/2017] [Indexed: 12/21/2022] Open
Abstract
B cells produce a plethora of anti-HIV antibodies (Abs) but only few of them exhibit neutralizing activity. This was long considered a profound limitation for the enforcement of humoral immune responses against HIV-1 infection, especially since these neutralizing Abs (nAbs) are extremely difficult to induce. However, increasing evidence shows that additional non-neutralizing Abs play a significant role in decreasing the viral load, leading to partial and sometimes even total protection. Mechanisms suspected to participate in protection are numerous. They involve the Fc domain of Abs as well as their Fab part, and consequently the induced Ab isotype will be determinant for their functions, as well as the quantity and quality of the Fc-receptors (FcRs) expressed on immune cells. Fc-mediated inhibitory functions, such as Ab-dependent cellular cytotoxicity, antibody-dependent cellular phagocytosis, aggregation, and even immune activation have been proposed. However, as for nAbs, the non-neutralizing activities are limited to a subset of anti-HIV Abs. An improved in-depth characterization of the Abs displaying these functional responses is required for the development of new vaccination strategies, which aim to selectively trigger the B cells able to induce the right functional Ab combinations both at the right place and at the right time. This review summarizes our current knowledge on non-neutralizing functional inhibitory Abs and discusses the potential benefit of inducing them via vaccination. We also provide new insight into the roles of the FcγR-mediated Ab therapeutics in clinical trials for HIV diseases.
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Affiliation(s)
- Luzia M Mayr
- INSERM U1109, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Bin Su
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Christiane Moog
- INSERM U1109, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
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73
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Looman KIM, Jansen MAE, Voortman T, van den Heuvel D, Jaddoe VWV, Franco OH, van Zelm MC, Moll HA. The role of vitamin D on circulating memory T cells in children: The Generation R study. Pediatr Allergy Immunol 2017; 28:579-587. [PMID: 28686349 DOI: 10.1111/pai.12754] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/04/2017] [Indexed: 01/19/2023]
Abstract
BACKGROUND Previous studies have demonstrated that vitamin D affects T-cell function and maturation via the vitamin D receptor. However, no studies in children have been performed on this topic. Because most of the T-cell memory is formed in the first 5 years of life, we aimed to determine the association between serum 25-hydroxyvitamin D (25(OH)D) levels and numbers of circulatory naive, central memory (Tcm), and effector memory (Tem) T lymphocytes in a large population of healthy children. METHODS Among 3189 children participating in a population-based prospective cohort, we measured 25(OH)D levels and performed detailed immunophenotyping of naive and memory T lymphocytes at a median age of 6.0 years (95% range 5.7-7.9). Detailed lymphocyte subsets were available in 986 children. Multivariable linear regression analyses were performed to determine the association between 25(OH)D and the maturation of T lymphocytes in children adjusted for cord blood 25(OH)D levels, herpes seropositivity, sociodemographic and lifestyle confounders. Furthermore, multivariable logistic regression analyses were performed to determine associations between 25(OH)D and childhood infections. RESULTS Higher 25(OH)D levels were associated with higher numbers of Tem lymphocytes. Every 10 nmol/L higher 25(OH)D was associated with 2.20% (95% CI 0.54-3.89; P=.009) higher CD4TemRA, 1.50% (95% CI 0.38-2.62; P=.008) higher CD4TemRO, and 1.82% (95% CI 0.11-3.56; P=.037) higher CD8TemRA cell numbers. Generally, stronger associations were observed among boys. 25(OH)D levels were not significantly associated with naive, Tcm cell numbers, herpes seropositivity, or URTIs. CONCLUSIONS Our results suggest that vitamin D enhances cellular immunity in young children.
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Affiliation(s)
- Kirsten I M Looman
- Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Pediatrics, Sophia Children's Hospital, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Michelle A E Jansen
- Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Pediatrics, Sophia Children's Hospital, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Trudy Voortman
- Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Diana van den Heuvel
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Vincent W V Jaddoe
- Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Pediatrics, Sophia Children's Hospital, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Oscar H Franco
- Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Menno C van Zelm
- Department of Immunology and Pathology, Central Clinical School, Monash University and Alfred Hospital, Melbourne, VIC, Australia
| | - Henriëtte A Moll
- Department of Pediatrics, Sophia Children's Hospital, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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74
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Boule LA, Kovacs EJ. Alcohol, aging, and innate immunity. J Leukoc Biol 2017; 102:41-55. [PMID: 28522597 DOI: 10.1189/jlb.4ru1016-450r] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 03/24/2017] [Accepted: 04/13/2017] [Indexed: 12/15/2022] Open
Abstract
The global population is aging: in 2010, 8% of the population was older than 65 y, and that is expected to double to 16% by 2050. With advanced age comes a heightened prevalence of chronic diseases. Moreover, elderly humans fair worse after acute diseases, namely infection, leading to higher rates of infection-mediated mortality. Advanced age alters many aspects of both the innate and adaptive immune systems, leading to impaired responses to primary infection and poor development of immunologic memory. An often overlooked, yet increasingly common, behavior in older individuals is alcohol consumption. In fact, it has been estimated that >40% of older adults consume alcohol, and evidence reveals that >10% of this group is drinking more than the recommended limit by the National Institute on Alcohol Abuse and Alcoholism. Alcohol consumption, at any level, alters host immune responses, including changes in the number, phenotype, and function of innate and adaptive immune cells. Thus, understanding the effect of alcohol ingestion on the immune system of older individuals, who are already less capable of combating infection, merits further study. However, there is currently almost nothing known about how drinking alters innate immunity in older subjects, despite innate immune cells being critical for host defense, resolution of inflammation, and maintenance of immune homeostasis. Here, we review the effects of aging and alcohol consumption on innate immune cells independently and highlight the few studies that have examined the effects of alcohol ingestion in aged individuals.
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Affiliation(s)
- Lisbeth A Boule
- Department of Surgery, Division of GI, Trauma, and Endocrine Surgery (GITES), University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado, USA; .,The Mucosal Inflammation Program (MIP), University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado, USA.,The Investigations in Metabolism, Aging, Gender and Exercise (IMAGE) Research Group, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado, USA; and
| | - Elizabeth J Kovacs
- Department of Surgery, Division of GI, Trauma, and Endocrine Surgery (GITES), University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado, USA; .,The Mucosal Inflammation Program (MIP), University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado, USA.,The Investigations in Metabolism, Aging, Gender and Exercise (IMAGE) Research Group, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado, USA; and.,The Immunology Graduate Program, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado, USA
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75
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Adeegbe DO, Liu Y, Lizotte PH, Kamihara Y, Aref AR, Almonte C, Dries R, Li Y, Liu S, Wang X, Warner-Hatten T, Castrillon J, Yuan GC, Poudel-Neupane N, Zhang H, Guerriero JL, Han S, Awad MM, Barbie DA, Ritz J, Jones SS, Hammerman PS, Bradner J, Quayle SN, Wong KK. Synergistic Immunostimulatory Effects and Therapeutic Benefit of Combined Histone Deacetylase and Bromodomain Inhibition in Non-Small Cell Lung Cancer. Cancer Discov 2017; 7:852-867. [PMID: 28408401 DOI: 10.1158/2159-8290.cd-16-1020] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/21/2016] [Accepted: 04/11/2017] [Indexed: 12/27/2022]
Abstract
Effective therapies for non-small cell lung cancer (NSCLC) remain challenging despite an increasingly comprehensive understanding of somatically altered oncogenic pathways. It is now clear that therapeutic agents with potential to impact the tumor immune microenvironment potentiate immune-orchestrated therapeutic benefit. Herein, we evaluated the immunoregulatory properties of histone deacetylase (HDAC) and bromodomain inhibitors, two classes of drugs that modulate the epigenome, with a focus on key cell subsets that are engaged in an immune response. By evaluating human peripheral blood and NSCLC tumors, we show that the selective HDAC6 inhibitor ricolinostat promotes phenotypic changes that support enhanced T-cell activation and improved function of antigen-presenting cells. The bromodomain inhibitor JQ1 attenuated CD4+FOXP3+ T regulatory cell suppressive function and synergized with ricolinostat to facilitate immune-mediated tumor growth arrest, leading to prolonged survival of mice with lung adenocarcinomas. Collectively, our findings highlight the immunomodulatory effects of two epigenetic modifiers that, together, promote T cell-mediated antitumor immunity and demonstrate their therapeutic potential for treatment of NSCLC.Significance: Selective inhibition of HDACs and bromodomain proteins modulates tumor-associated immune cells in a manner that favors improved T-cell function and reduced inhibitory cellular mechanisms. These effects facilitated robust antitumor responses in tumor-bearing mice, demonstrating the therapeutic potential of combining these epigenetic modulators for the treatment of NSCLC. Cancer Discov; 7(8); 852-67. ©2017 AACR.This article is highlighted in the In This Issue feature, p. 783.
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Affiliation(s)
- Dennis O Adeegbe
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Yan Liu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Patrick H Lizotte
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Yusuke Kamihara
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Amir R Aref
- Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Christina Almonte
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Ruben Dries
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Yuyang Li
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Shengwu Liu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Xiaoen Wang
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | | | - Jessica Castrillon
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Guo-Cheng Yuan
- Harvard Chan School of Public Health, Boston, Massachusetts
| | | | - Haikuo Zhang
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Jennifer L Guerriero
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Shiwei Han
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Mark M Awad
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - David A Barbie
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jerome Ritz
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Simon S Jones
- Acetylon Pharmaceuticals, Inc., Boston, Massachusetts
| | - Peter S Hammerman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - James Bradner
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | | | - Kwok-Kin Wong
- Laura & Isaac Perlmutter Cancer Center, NYU Langone Medical Center, New York, New York.
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Fatima F, Nawaz M. Nexus between extracellular vesicles, immunomodulation and tissue remodeling: for good or for bad? ANNALS OF TRANSLATIONAL MEDICINE 2017; 5:139. [PMID: 28462219 DOI: 10.21037/atm.2017.03.71] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Farah Fatima
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Muhammad Nawaz
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
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Hess NJ, Felicelli C, Grage J, Tapping RI. TLR10 suppresses the activation and differentiation of monocytes with effects on DC-mediated adaptive immune responses. J Leukoc Biol 2017; 101:1245-1252. [PMID: 28235773 DOI: 10.1189/jlb.3a1116-492r] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 01/16/2017] [Accepted: 01/30/2017] [Indexed: 11/24/2022] Open
Abstract
TLRs are important pattern-recognition receptors involved in the activation of innate immune responses against foreign pathogens. TLR10 is the only TLR family member without a known ligand, signaling pathway, or clear cellular function. Previous work has shown that TLR10 suppresses proinflammatory cytokine production in response to TLR agonists in a mixed human mononuclear cell population. We report that TLR10 is preferentially expressed on monocytes and suppresses proinflammatory cytokine production resulting from either TLR or CD40 stimulation. TLR10 engagement affects both the MAPK and Akt signaling pathways, leading to changes in the transcriptome of isolated human monocytes. Differentiation of monocytes into dendritic cells in the presence of an αTLR10 mAb reduced the expression of maturation markers and the induction of proinflammatory cytokines, again in response to either TLR or CD40 stimulation. Finally, in coculture experiments, TLR10 differentiated dendritic cells exhibited a decreased capacity to activate T cells as measured by IL-2 and IFN-γ production. These data demonstrate that TLR10 is a novel regulator of innate immune responses and of the differentiation of primary human monocytes into effective dendritic cells.
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Affiliation(s)
- Nicholas J Hess
- Department of Microbiology, University of Illinois, Urbana-Champaign, Illinois, USA; and
| | - Christopher Felicelli
- Department of Microbiology, University of Illinois, Urbana-Champaign, Illinois, USA; and
| | - Jennifer Grage
- Department of Microbiology, University of Illinois, Urbana-Champaign, Illinois, USA; and
| | - Richard I Tapping
- Department of Microbiology, University of Illinois, Urbana-Champaign, Illinois, USA; and .,College of Medicine, University of Illinois, Urbana-Champaign, Illinois, USA
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78
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Sage AP, Mallat Z. Readapting the adaptive immune response - therapeutic strategies for atherosclerosis. Br J Pharmacol 2017; 174:3926-3939. [PMID: 28052311 DOI: 10.1111/bph.13700] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 12/13/2016] [Accepted: 12/20/2016] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular diseases remain a major global health issue, with the development of atherosclerosis as a major underlying cause. Our treatment of cardiovascular disease has improved greatly over the past three decades, but much remains to be done reduce disease burden. Current priorities include reducing atherosclerosis advancement to clinically significant stages and preventing plaque rupture or erosion. Inflammation and involvement of the adaptive immune system influences all these aspects and therefore is one focus for future therapeutic development. The atherosclerotic vascular wall is now recognized to be invaded from both sides (arterial lumen and adventitia), for better or worse, by the adaptive immune system. Atherosclerosis is also affected at several stages by adaptive immune responses, overall providing many opportunities to target these responses and to reduce disease progression. Protective influences that may be defective in diseased individuals include humoral responses to modified LDL and regulatory T cell responses. There are many strategies in development to boost these pathways in humans, including vaccine-based therapies. The effects of various existing adaptive immune targeting therapies, such as blocking critical co-stimulatory pathways or B cell depletion, on cardiovascular disease are beginning to emerge with important consequences for both autoimmune disease patients and the potential for wider use of such therapies. Entering the translation phase for adaptive immune targeting therapies is an exciting and promising prospect. LINKED ARTICLES This article is part of a themed section on Targeting Inflammation to Reduce Cardiovascular Disease Risk. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.22/issuetoc and http://onlinelibrary.wiley.com/doi/10.1111/bcp.v82.4/issuetoc.
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Affiliation(s)
- Andrew P Sage
- Division of Cardiovascular Medicine, Department of Medicine, University of Cambridge, Cambridge, UK
| | - Ziad Mallat
- Division of Cardiovascular Medicine, Department of Medicine, University of Cambridge, Cambridge, UK.,INSERM U970, Paris Cardiovascular Research Center, Paris, France, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
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79
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Effective Depletion of Pre-existing Anti-AAV Antibodies Requires Broad Immune Targeting. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2017; 4:159-168. [PMID: 28345001 PMCID: PMC5363314 DOI: 10.1016/j.omtm.2017.01.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 01/04/2017] [Indexed: 11/22/2022]
Abstract
Pre-existing antibodies (Abs) to AAV pose a critical challenge for the translation of gene therapies. No effective approach is available to overcome pre-existing Abs. Given the complexity of Ab production, overcoming pre-existing Abs will require broad immune targeting. We generated a mouse model of pre-existing AAV9 Abs to test multiple immunosuppressants, including bortezomib, rapamycin, and prednisolone, individually or in combination. We identified an effective approach combining rapamycin and prednisolone, reducing serum AAV9 Abs by 70%–80% at 4 weeks and 85%–93% at 8 weeks of treatment. The rapamycin plus prednisolone treatment resulted in significant decreases in the frequency of B cells, plasma cells, and IgG-secreting and AAV9-specific Ab-producing plasma cells in bone marrow. The rapamycin plus prednisolone treatment also significantly reduced frequencies of IgD−IgG+ class-switched/FAS+CL7+ germinal center B cells, and of activated CD4+ T cells expressing PD1 and GL7, in spleen. These data suggest that rapamycin plus prednisolone has selective inhibitory effects on both T helper type 2 support of B cell activation in spleen and on bone marrow plasma cell survival, leading to effective AAV9 Abs depletion. This promising immunomodulation approach is highly translatable, and it poses minimal risk in the context of therapeutic benefits promised by gene therapy for severe monogenetic diseases, with a single or possibly a few treatments over a lifetime.
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80
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Grant EJ, Nüssing S, Sant S, Clemens EB, Kedzierska K. The role of CD27 in anti-viral T-cell immunity. Curr Opin Virol 2017; 22:77-88. [PMID: 28086150 DOI: 10.1016/j.coviro.2016.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/05/2016] [Accepted: 12/12/2016] [Indexed: 12/23/2022]
Abstract
CD27 is a co-stimulatory immune-checkpoint receptor, constitutively expressed on a broad range of T-cells (αβ and γδ), NK-cells and B-cells. Ligation of CD27 with CD70 results in potent co-stimulatory effects. In mice, co-stimulation of CD8+ T-cells through CD27 promotes immune activation and enhances primary, secondary, memory and recall responses towards viral infections. Limited in vitro human studies support mouse experiments and show that CD27 co-stimulation enhances antiviral T-cell immunity. Given the potent co-stimulatory effects of CD27, manipulating CD27 signalling is of interest for viral, autoimmune and anti-tumour immunotherapies. This review focuses on the role of CD27 co-stimulation in anti-viral T-cell immunity and discusses clinical studies utilising the CD27 co-stimulation pathway for anti-viral, anti-tumour and autoimmune immunotherapy.
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Affiliation(s)
- Emma J Grant
- Department of Microbiology and Immunology, at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne 3000, VIC, Australia; Institute of Infection and Immunity, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, United Kingdom
| | - Simone Nüssing
- Department of Microbiology and Immunology, at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne 3000, VIC, Australia
| | - Sneha Sant
- Department of Microbiology and Immunology, at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne 3000, VIC, Australia
| | - E Bridie Clemens
- Department of Microbiology and Immunology, at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne 3000, VIC, Australia
| | - Katherine Kedzierska
- Department of Microbiology and Immunology, at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne 3000, VIC, Australia.
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81
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Tronson NC, Collette KM. (Putative) sex differences in neuroimmune modulation of memory. J Neurosci Res 2017; 95:472-486. [PMID: 27870428 PMCID: PMC5120654 DOI: 10.1002/jnr.23921] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 08/11/2016] [Accepted: 08/22/2016] [Indexed: 12/11/2022]
Abstract
The neuroimmune system is significantly sexually dimorphic, with sex differences evident in the number and activation states of microglia, in the activation of astrocytes, and in cytokine release and function. Neuroimmune cells and signaling are now recognized as critical for many neural functions throughout the life span, including synaptic plasticity and memory function. Here we address the question of how cytokines, astrocytes, and microglia contribute to memory, and specifically how neuroimmune modulation of memory differentially affects males and females. Understanding sex differences in both normal memory processes and dysregulation of memory in psychiatric and neurological disorders is critical for developing treatment and preventive strategies for memory disorders that are effective for both men and women. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Natalie C Tronson
- Department of Psychology, University of Michigan, Ann Arbor, Michigan
| | - Katie M Collette
- Department of Psychology, University of Michigan, Ann Arbor, Michigan
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82
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Cunningham AL, Garçon N, Leo O, Friedland LR, Strugnell R, Laupèze B, Doherty M, Stern P. Vaccine development: From concept to early clinical testing. Vaccine 2016; 34:6655-6664. [DOI: 10.1016/j.vaccine.2016.10.016] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 09/21/2016] [Accepted: 10/04/2016] [Indexed: 12/21/2022]
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83
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Gil-Jaramillo N, Motta FN, Favali CBF, Bastos IMD, Santana JM. Dendritic Cells: A Double-Edged Sword in Immune Responses during Chagas Disease. Front Microbiol 2016; 7:1076. [PMID: 27471496 PMCID: PMC4943928 DOI: 10.3389/fmicb.2016.01076] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 06/27/2016] [Indexed: 01/24/2023] Open
Abstract
Dendritic cells (DCs) are the most important member of the antigen presenting cells group due to their ability to recognize antigen at the infection site and their high specialized antigen internalization capacity. These cells have central role in connecting the innate and adaptive immune responses against Trypanosoma cruzi, the causative agent of Chagas disease. These first line defense cells modulate host immune response depending on type, maturation level, cytokine milieu and DC receptor involved in the interactions with T. cruzi, influencing the development of the disease clinic forms. Here, we present a review of DCs-T. cruzi interactions both in human and murine models, pointing out the parasite ability to manipulate DCs activity for the purpose of evading innate immune response and assuring its own survival and persistence.
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Affiliation(s)
- Natalia Gil-Jaramillo
- Laboratório de Interação Patógeno-Hospedeiro, Instituto de Biologia, Universidade de BrasíliaBrasília, Brazil
| | - Flávia N. Motta
- Laboratório de Interação Patógeno-Hospedeiro, Instituto de Biologia, Universidade de BrasíliaBrasília, Brazil
- Faculdade de Ceilândia, Universidade de BrasíliaBrasília, Brazil
| | - Cecília B. F. Favali
- Laboratório de Biologia do Gene, Instituto de Biologia, Universidade de BrasíliaBrasília, Brazil
| | - Izabela M. D. Bastos
- Laboratório de Interação Patógeno-Hospedeiro, Instituto de Biologia, Universidade de BrasíliaBrasília, Brazil
| | - Jaime M. Santana
- Laboratório de Interação Patógeno-Hospedeiro, Instituto de Biologia, Universidade de BrasíliaBrasília, Brazil
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84
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Wang C, Li P, Liu L, Pan H, Li H, Cai L, Ma Y. Self-adjuvanted nanovaccine for cancer immunotherapy: Role of lysosomal rupture-induced ROS in MHC class I antigen presentation. Biomaterials 2016; 79:88-100. [DOI: 10.1016/j.biomaterials.2015.11.040] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 11/29/2015] [Indexed: 01/07/2023]
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85
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Sofron A, Ritz D, Neri D, Fugmann T. High-resolution analysis of the murine MHC class II immunopeptidome. Eur J Immunol 2015; 46:319-28. [PMID: 26495903 DOI: 10.1002/eji.201545930] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 09/09/2015] [Accepted: 10/19/2015] [Indexed: 02/06/2023]
Abstract
The reliable identification of peptides bound to major histocompatibility complex (MHC) class II is fundamental for the study of the host immune response against pathogens and the pathogenesis of autoimmune conditions. Here, we describe an improved methodology combining immuno-affinity enrichment of MHC class II complexes, optimized elution conditions and quadrupole Orbitrap mass spectrometry-based characterization of the immunopeptidome. The methodology allowed the identification of over 1000 peptides with 1% false discovery rate from 10(8) murine A20 lymphoma cells. The study revealed the I-A(d) -specific motif in high resolution after multisequence alignment. The methodology was generally applied to the purification of MHC class II from cell lines and murine spleens. We identified 2963 peptides from BALB/c and 2712 from C57BL/6 mouse spleens. The identification of peptides bound to MHC class II in vitro and in vivo will facilitate the characterization of T-cell specificities, as well as the development of biotherapeutics and vaccines.
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Affiliation(s)
- Adriana Sofron
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | | | - Dario Neri
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
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86
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Adaptive Immunity and Antigen-Specific Activation in Obesity-Associated Insulin Resistance. Mediators Inflamm 2015; 2015:593075. [PMID: 26146464 PMCID: PMC4471324 DOI: 10.1155/2015/593075] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 05/11/2015] [Accepted: 05/13/2015] [Indexed: 02/07/2023] Open
Abstract
Type 2 diabetes mellitus (T2D) is a metabolic disease that is strongly tied to obesity and often preceded by insulin resistance (IR). It has been established that chronic inflammation of hypertrophic adipose tissue depots in obese individuals leads to obesity-associated IR and is mediated by cells of the innate immune system, particularly macrophages. More recently, cells of the adaptive immune system, B and T lymphocytes, have also emerged as important regulators of glucose homeostasis, raising the intriguing possibility that antigen-driven immune responses play a role in disease. In this review, we critically evaluate the roles that various B and T cell subsets play in IR, and then we examine the data suggesting that antigen-driven mechanisms, such as antigen presentation and costimulation, may drive the activity of these lymphocytes.
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