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Wang S, Yan T, Zhang B, Chen Y, Li Z. Porphyromonas gingivalis Vaccine: Antigens and Mucosal Adjuvants. Vaccines (Basel) 2024; 12:619. [PMID: 38932348 PMCID: PMC11209493 DOI: 10.3390/vaccines12060619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/21/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Porphyromonas gingivalis (Pg), a Gram-negative anaerobic bacterium found in dental plaque biofilm within periodontal pockets, is the primary pathogenic microorganism responsible for chronic periodontitis. Infection by Pg significantly impacts the development and progression of various diseases, underscoring the importance of eliminating this bacterium for effective clinical treatment. While antibiotics are commonly used to combat Pg, the rise of antibiotic resistance poses a challenge to complete eradication. Thus, the prevention of Pg infection is paramount. Research suggests that surface antigens of Pg, such as fimbriae, outer membrane proteins, and gingipains, can potentially be utilized as vaccine antigens to trigger protective immune responses. This article overviews these antigens, discusses advancements in mucosal adjuvants (including immunostimulant adjuvants and vaccine-delivery adjuvants), and their application in Pg vaccine development. Furthermore, the review examines the advantages and disadvantages of different immune pathways and common routes of Pg vaccine immunization. By summarizing the current landscape of Pg vaccines, addressing existing challenges, and highlighting the potential of mucosal vaccines, this review offers new insights for the advancement and clinical implementation of Pg vaccines.
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Affiliation(s)
- Shuo Wang
- College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang 471003, China; (S.W.); (T.Y.); (B.Z.); (Y.C.)
| | - Tong Yan
- College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang 471003, China; (S.W.); (T.Y.); (B.Z.); (Y.C.)
| | - Bingtao Zhang
- College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang 471003, China; (S.W.); (T.Y.); (B.Z.); (Y.C.)
| | - Yixiang Chen
- College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang 471003, China; (S.W.); (T.Y.); (B.Z.); (Y.C.)
- Henan Engineering Research Center for Key Immunological Biomaterials, Luoyang Polytechnic, Luoyang 471000, China
| | - Zhitao Li
- College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang 471003, China; (S.W.); (T.Y.); (B.Z.); (Y.C.)
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Buggert M, Höglund P. The prize of prizes: mRNA research paving the way for COVID-19 vaccine success wins the Nobel Prize in Physiology or Medicine 2023. Scand J Immunol 2023; 98:e13340. [PMID: 37953432 DOI: 10.1111/sji.13340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Affiliation(s)
- Marcus Buggert
- Center for Infectious Medicine (CIM), Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Petter Höglund
- Center for hematology and Regenerative Medicine (HERM), Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
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Wang D, Cui Q, Yang YJ, Liu AQ, Zhang G, Yu JC. Application of dendritic cells in tumor immunotherapy and progress in the mechanism of anti-tumor effect of Astragalus polysaccharide (APS) modulating dendritic cells: a review. Biomed Pharmacother 2022; 155:113541. [PMID: 36127221 DOI: 10.1016/j.biopha.2022.113541] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/30/2022] Open
Abstract
Dendritic cells (DCs) are potent antigen-presenting cells (APCs) that are essential in mediating the body's natural and adaptive immune responses. The body can regulate the function of DCs in various ways to enhance their antitumor effects. In the tumour microenvironment (TME), antigen-specific T cell responses are initiated through DC processing and delivery of tumour-associated antigens (TAAs); conversely, tumour cells inhibit DC recruitment by releasing metabolites, cytokines and other regulatory TME and function. Different subpopulations of DCs exist in tumour tissues, and their functions vary. Insight into DC subgroups in TME allows assessment of the effectiveness of tumour immunotherapy. Astragalus polysaccharide (APS) is the main component of the Chinese herb Astragalus membranaceus. The study found that the antitumor effects of APS are closely related to DCs. APS can promote the expression of surface molecules CD80 and CD86, promote the maturation of DCs, and activate CTL to exert antitumor effects. We reviewed the application of DCs in tumor immunotherapy and the mechanism of modulation of DCs by Astragalus polysaccharide to provide new directions and strategies for tumor therapy and new drug development.
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Affiliation(s)
- Dong Wang
- Department of Oncology, First Teaching Hospital, Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China; Graduate School of Tianjin University of traditional Chinese Medicine, Tianjin, China
| | - Qian Cui
- Department of Oncology, First Teaching Hospital, Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China; Graduate School of Tianjin University of traditional Chinese Medicine, Tianjin, China
| | - Yan Jie Yang
- Department of Oncology, First Teaching Hospital, Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China; Graduate School of Tianjin University of traditional Chinese Medicine, Tianjin, China
| | - A Qing Liu
- Department of Oncology, First Teaching Hospital, Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China; Graduate School of Tianjin University of traditional Chinese Medicine, Tianjin, China
| | - Guan Zhang
- Department of Oncology, First Teaching Hospital, Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China; Graduate School of Tianjin University of traditional Chinese Medicine, Tianjin, China
| | - Jian Chun Yu
- Department of Oncology, First Teaching Hospital, Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China.
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Jennings H, Carlson KN, Little C, Verhagen JC, Nagendran J, Liu Y, Verhoven B, Zeng W, McMorrow S, Chlebeck P, Al-Adra DP. The Immunological Effect of Oxygen Carriers on Normothermic Ex Vivo Liver Perfusion. Front Immunol 2022; 13:833243. [PMID: 35812402 PMCID: PMC9258194 DOI: 10.3389/fimmu.2022.833243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 05/20/2022] [Indexed: 12/21/2022] Open
Abstract
Introduction Normothermic ex vivo liver perfusion (NEVLP) is an organ preservation method that allows liver graft functional assessment prior to transplantation. One key component of normothermic perfusion solution is an oxygen carrier to provide oxygen to the liver to sustain metabolic activities. Oxygen carriers such as red blood cells (RBCs) or hemoglobin-based oxygen carriers have an unknown effect on the liver-resident immune cells during NEVLP. In this study, we assessed the effects of different oxygen carriers on the phenotype and function of liver-resident immune cells. Methods Adult Lewis rat livers underwent NEVLP using three different oxygen carriers: human packed RBCs (pRBCs), rat pRBCs, or Oxyglobin (a synthetic hemoglobin-based oxygen carrier). Hourly perfusate samples were collected for downstream analysis, and livers were digested to isolate immune cells. The concentration of common cytokines was measured in the perfusate, and the immune cells underwent phenotypic characterization with flow cytometry and quantitative reverse transcription polymerase chain reaction (qRT-PCR). The stimulatory function of the liver-resident immune cells was assessed using mixed lymphocyte reactions. Results There were no differences in liver function, liver damage, or histology between the three oxygen carriers. qRT-PCR revealed that the gene expression of nuclear factor κ light chain enhancer of activated B cells (NF-kB), Interleukin (IL-1β), C-C motif chemokine ligand 2 (CCL2), C-C motif chemokine ligand 7 (CCL7), and CD14 was significantly upregulated in the human pRBC group compared with that in the naive, whereas the rat pRBC and Oxyglobin groups were not different from that of naive. Flow cytometry demonstrated that the cell surface expression of the immune co-stimulatory protein, CD86, was significantly higher on liver-resident macrophages and plasmacytoid dendritic cells perfused with human pRBC compared to Oxyglobin. Mixed lymphocyte reactions revealed increased allogeneic T-cell proliferation in the human and rat pRBC groups compared to that in the Oxyglobin group. Conclusions Liver-resident immune cells are important mediators of rejection after transplantation. In this study, we show that the oxygen carrier used in NEVLP solutions can affect the phenotype of these liver-resident immune cells. The synthetic hemoglobin-based oxygen carrier, Oxyglobin, showed the least amount of liver-resident immune cell activation and the least amount of allogeneic proliferation when compared to human or rat pRBCs. To mitigate liver-resident immune cell activation during NEVLP (and subsequent transplantation), Oxyglobin may be an optimal oxygen carrier.
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Affiliation(s)
- Heather Jennings
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Kristin N. Carlson
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Chris Little
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Joshua C. Verhagen
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Jeevan Nagendran
- Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Yongjun Liu
- Department of Pathology, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Bret Verhoven
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Weifeng Zeng
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Stacey McMorrow
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Peter Chlebeck
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - David P. Al-Adra
- Division of Transplantation, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
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