1
|
Tang H, Wei W, Luo Y, Lu X, Chen J, Yang S, Wu F, Zhou H, Ma W, Yang X. P2X7 receptors: a bibliometric review from 2002 to 2023. Purinergic Signal 2024:10.1007/s11302-024-09996-9. [PMID: 38421486 DOI: 10.1007/s11302-024-09996-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 02/21/2024] [Indexed: 03/02/2024] Open
Abstract
For many years, there has been ongoing research on the P2X7 receptor (P2X7R). A comprehensive, systematic, and objective evaluation of the scientific output and status of P2X7R will be instrumental in guiding future research directions. This study aims to present the status and trends of P2X7R research from 2002 to 2023. Publications related to P2X7R were retrieved from the Web of Science Core Collection database. Quantitative analysis and visualization tools were Microsoft Excel, VOSviewer, and CiteSpace software. The analysis content included publication trends, literature co-citation, and keywords. 3282 records were included in total, with the majority of papers published within the last 10 years. Based on literature co-citation and keyword analysis, neuroinflammation, neuropathic pain, gastrointestinal diseases, tumor microenvironment, rheumatoid arthritis, age-related macular degeneration, and P2X7R antagonists were considered to be the hotspots and frontiers of P2X7R research. Researchers will get a more intuitive understanding of the status and trends of P2X7R research from this study.
Collapse
Affiliation(s)
- Haiting Tang
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wei Wei
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yu Luo
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiaoqing Lu
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jun Chen
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Shenqiao Yang
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Fei Wu
- School of Foreign Languages, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Haiyan Zhou
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wenbin Ma
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xin Yang
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| |
Collapse
|
2
|
Grassi F, Marino R. The P2X7 receptor in mucosal adaptive immunity. Purinergic Signal 2024; 20:9-19. [PMID: 37067746 PMCID: PMC10828151 DOI: 10.1007/s11302-023-09939-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/31/2023] [Indexed: 04/18/2023] Open
Abstract
The P2X7 receptor (P2X7R) is a widely distributed cation channel activated by extracellular ATP (eATP) with exclusive peculiarities with respect to other P2XRs. In recent years, P2X7R has been shown to regulate the adaptive immune response by conditioning T cell signaling and activation as well as polarization, lineage stability, cell death, and function in tissues. Here we revise experimental observations in this field, with a focus on adaptive immunity at mucosal sites, particularly in the gut, where eATP is hypothesized to act in the reciprocal conditioning of the host immune system and commensal microbiota to promote mutualism. The importance of P2X7R activity in the intestine is consistent with the transcriptional upregulation of P2xr7 gene by retinoic acid, a metabolite playing a key role in mucosal immunity. We emphasize the function of the eATP/P2X7R axis in controlling T follicular helper (Tfh) cell in the gut-associated lymphoid tissue (GALT) and, consequently, T-dependent secretory IgA (SIgA), with a focus on high-affinity SIgA-mediated protection from enteropathogens and shaping of a beneficial microbiota for the host.
Collapse
Affiliation(s)
- Fabio Grassi
- Institute for Research in Biomedicine, Faculty of Biomedical Sciences, Università Della Svizzera Italiana, 6500, Bellinzona, Switzerland.
| | - Rebecca Marino
- Institute for Research in Biomedicine, Faculty of Biomedical Sciences, Università Della Svizzera Italiana, 6500, Bellinzona, Switzerland
| |
Collapse
|
3
|
Arai N, Kajihara R, Takasaka M, Amari K, Kuneshita N, Maejima D, Watanabe-Asaka T, Hayashi M, Yokoyama Y, Kaidoh M, Kawai Y, Ohhashi T. Cell surface ATP synthase-released H + and ATP play key roles in cocoa butter intake-mediated regulation of gut immunity through releases of cytokines in rat. Pflugers Arch 2023; 475:945-960. [PMID: 37261509 DOI: 10.1007/s00424-023-02822-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 03/25/2023] [Accepted: 05/22/2023] [Indexed: 06/02/2023]
Abstract
Proper food intake is important for maintaining good health in humans. Chocolate is known to exert anti-inflammatory effects; however, the mechanisms remain unclear. In this study, we aimed to investigate the effects of cocoa butter intake on gut immunity in rats and rabbits. Cocoa butter intake increased the lymph flow, cell density, and IL-1β, IL-6 and IL-10 levels in mesenteric lymph. Clodronate, a macrophage depletion compound, significantly enhanced the release of all cytokines. The immunoreactivities of macrophage markers CD68 and F4/80 in the jejunal villi were significantly decreased with clodronate. Piceatannol, a selective cell surface ATP synthase inhibitor significantly reduced the cocoa butter intake-mediated releases of IL-1β, IL-6 and IL-10. The immunoreactivities of cell surface ATP synthase were observed in rat jejunal villi. Shear stress stimulation on the myofibroblast cells isolated from rat jejunum released ATP and carbon dioxide depended with H+ release. In rabbit in vivo experiments, cocoa butter intake increased the concentrations of ATP and H+ in the portal vein. The in vitro experiments with isolated cells of rat jejunal lamina propria the pH of 3.0 and 5.0 in the medium released significantly IL-1β and IL-6. ATP selectively released IL-10. These findings suggest that cocoa butter intake regulates the gut immunity through the release and transport of IL-1β, IL-6, and IL-10 into mesenteric lymph vessels in a negative feedback system. In addition, the H+ and ATP released from cell surface ATP synthase in jejunal villi play key roles in the cocoa butter intake-mediated regulation of gut immunity.
Collapse
Affiliation(s)
- Nariaki Arai
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Ryo Kajihara
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Mieko Takasaka
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
| | - Kei Amari
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Norika Kuneshita
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Daisuke Maejima
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
| | - Tomomi Watanabe-Asaka
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Division of Physiology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Moyuru Hayashi
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Division of Physiology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Yumiko Yokoyama
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
| | - Maki Kaidoh
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
| | - Yoshiko Kawai
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Division of Physiology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Toshio Ohhashi
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan.
| |
Collapse
|
4
|
Cheng N, Zhang L, Liu L. Understanding the Role of Purinergic P2X7 Receptors in the Gastrointestinal System: A Systematic Review. Front Pharmacol 2021; 12:786579. [PMID: 34987401 PMCID: PMC8721002 DOI: 10.3389/fphar.2021.786579] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/17/2021] [Indexed: 11/24/2022] Open
Abstract
Background: The role of purinergic P2X7 receptor (P2X7R) is of interest due to its involvement in inflammation and mediating immune cell responses. P2X7R is particularly implicated in the development of inflammatory bowel disease (IBD). However, the extent of the actions of P2X7R in the gastrointestinal (GI) system under physiological and pathophysiological conditions remains to be elucidated. This systematic review aimed to identify, summarize and evaluate the evidence for a critical role of P2X7R in the GI system. Methods: We searched PubMed, Embase and Scopus with search terms pertained to P2X7R in the GI system in disease or physiological state, including “P2X7 or P2X7 receptor or purinergic signaling” in combination with any of the terms “intestine or colon or gut or gastrointestinal,” “pathology or inflammation or disease or disorder,” and “physiology or expression.” Titles and abstracts were screened for potentially eligible full texts, and animal and human studies published in English were included in this study. Data were extracted from papers meeting inclusion criteria. Meta-analysis was not feasible given the study diversity. Results: There were 48 papers included in this review. We identified 14 experimental colitis models, three sepsis models and one ischemia-reperfusion injury model. Among them, 11 studies examined P2X7R in GI infections, six studies on immune cell regulation, four studies on GI inflammation, two studies on GI malignancies, three studies involving intestinal injury due to various causes, two studies on ATP-activated P2X7R in the GI system and two studies on metabolic regulation. Conclusion: Evidence supports P2X7R mediating inflammation and immune cell responses in GI inflammation, infections and injury due to IBD and other challenges to the intestinal wall. P2X7R inhibition by gene knockout or by application of P2X7R antagonists can reduce tissue damage by suppressing inflammation. P2X7R is also implicated in GI malignancies and glucose and lipid homeostasis. P2X7R blockade, however, did not always lead to beneficial outcomes in the various pathological models of study.
Collapse
Affiliation(s)
- Nathalie Cheng
- School of Medical Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Li Zhang
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Lu Liu
- School of Medical Sciences, UNSW Sydney, Sydney, NSW, Australia
- *Correspondence: Lu Liu,
| |
Collapse
|
5
|
Cuthbertson P, Geraghty NJ, Adhikary SR, Casolin S, Watson D, Sluyter R. P2X7 receptor antagonism increases regulatory T cells and reduces clinical and histological graft-versus-host disease in a humanised mouse model. Clin Sci (Lond) 2021; 135:495-513. [PMID: 33463682 DOI: 10.1042/cs20201352] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 02/06/2023]
Abstract
Graft-versus-host disease (GVHD) is a severe inflammatory response arising from allogeneic haematopoietic stem cell transplantation. Previous studies revealed that antagonism of the P2X7 receptor with Brilliant Blue G (BBG) reduced liver GVHD but did not alter clinical GVHD in a humanised mouse model. Therefore, the present study aimed to trial a modified injection regime using more frequent dosing of BBG to improve outcomes in this model of GVHD. NOD-scid IL2Rγnull (NSG) mice were injected intraperitoneally (i.p.) with 10 × 106 human peripheral blood mononuclear cells (hPBMCs) (day 0), then daily with BBG (50 mg/kg) or saline (days 0-10). BBG significantly reduced clinical score, mortality and histological GVHD compared with saline treatment (endpoint). BBG significantly increased proportions of human regulatory T cells (Tregs) and human B cells and reduced serum human interferon-γ compared with saline treatment prior to development of clinical GVHD (day 21). To confirm the therapeutic benefit of P2X7 antagonism, NSG mice were injected i.p. with 10 × 106 hPBMCs (day 0), then daily with pyridoxalphosphate-6-azophenyl-2',4'-disulfonic acid (PPADS) (300 mg/kg) or saline (days 0-10). PPADS increased human Treg proportions compared with saline treatment (day 21), but potential clinical benefits were confounded by increased weight loss with this antagonist. To investigate the role of P2X7 antagonism on Treg survival, hPBMCs were cultured in reduced serum conditions to promote cell death. BBG increased proportions of Tregs (and B cells) compared with saline under these conditions. In conclusion, P2X7 antagonism reduces clinical and histological GVHD in a humanised mouse model corresponding to an increase in human Tregs.
Collapse
Affiliation(s)
- Peter Cuthbertson
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Nicholas J Geraghty
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Sam R Adhikary
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Sienna Casolin
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Debbie Watson
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Ronald Sluyter
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| |
Collapse
|
6
|
Abstract
Many options now exist for constructing oral vaccines which, in experimental systems, have shown themselves to be able to generate highly effective immunity against infectious diseases. Their suitability for implementation in clinical practice, however, for prevention of outbreaks, particularly in low- and middle-income countries (LMIC), is not always guaranteed, because of factors such as cost, logistics and cultural and environmental conditions. This brief overview provides a summary of the various approaches which can be adopted, and evaluates them from a pharmaceutical point, taking into account potential regulatory issues, expense, manufacturing complexity, etc., all of which can determine whether a vaccine approach will be successful in the late stages of development. Attention is also drawn to problems arising from inadequate diet, which impacts upon success in stimulating effective immunity, and identifies the use of lipid-based carriers as a way to counteract the problem of nutritional deficiencies in vaccination campaigns.
Collapse
Affiliation(s)
- R. R. C. New
- Middlesex UniversityHendon, LondonUK
- Vaxcine (UK) Limited, London Bioscience Innovation CentreLondonUK
| |
Collapse
|
7
|
Bykov AS, Karaulov AV, Tsomartova DA, Kartashkina NL, Goriachkina VL, Kuznetsov SL, Stonogina DA, Chereshneva YV. M CELLS ARE THE IMPORTANT POST IN THE INITIATION OF IMMUNE RESPONSE IN INTESTINE. RUSSIAN JOURNAL OF INFECTION AND IMMUNITY 2018. [DOI: 10.15789/2220-7619-2018-3-263-272] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Microfold cells (M cells) are specialized intestinal epithelial cells that initiate mucosal immune responses. These unique phagocytic epithelial cells are specialized for the transfer of a broad range of particulate antigens and microorganisms across the follicle-associated epithelium (FAE) into the gut-associated lymphoid tissue (GALT) by a process termed transcytosis. The molecular basis of antigen uptake by M cells has been gradually identified in the last decade. Active sampling of intestinal antigen initiates regulated immune responses that ensure intestinal homeostasis. The delivery of luminal substances across the intestinal epithelium to the immune system is a critical event in immune surveillance resulting in tolerance to dietary antigens and immunity to pathogens (e.g., bacteria, viruses, and parasites) and their toxins. Several specialized mechanisms transport luminal antigen across the gut epithelium. Discovery of M cell-specific receptors are of great interest, which could act as molecular tags for targeted delivery oral vaccine to M cells. Recent studies demonstrated that M cells utilize several receptors to recognize and transport specific luminal antigens. Vaccination through the mucosal immune system can induce effective systemic immune responses simultaneously with mucosal immunity. How this process is regulated is largely unknown. This review aims to show a new understanding of the factors that influence the development and function of M cells; to show the molecules expressed on M cells which appear to be used as immunosurveillance receptors to sample pathogenic microorganisms in the gut; to note how certain pathogens appear to exploit M cells to inject the host; and, finally, how this knowledge is used to specifically "target" antigens to M cells to attempt to improve the efficacy of mucosal vaccines. Recently, substantial progress has been made in our understanding of the factors that influence the development and function of M cells.
Collapse
|
8
|
Kim SH, Kim YN, Kim J, Jang YS. C5a receptor targeting of partial non-structural protein 3 of dengue virus promotes antigen-specific IFN-γ-producing T-cell responses in a mucosal dengue vaccine model. Cell Immunol 2018; 325:41-47. [PMID: 29397905 DOI: 10.1016/j.cellimm.2018.01.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 01/12/2018] [Accepted: 01/29/2018] [Indexed: 12/17/2022]
Abstract
Mucosal vaccination is an ideal strategy to induce protective immunity in both mucosal and parenteral areas. Successful induction of an antigen-specific immune response via mucosal administration essentially requires the effective delivery of antigen into a mucosal immune inductive site, which depends on antigen delivery into M cells. We previously reported that M cells specifically express C5aR, and antigen targeting to C5aR by using specific ligands, including Co1 peptide, promotes the antigen-specific immune response in both mucosal and systemic immune compartments. In this study, we found that application of the Co1 peptide to dengue virus antigen containing CD8 T cell epitopes effectively induced an antigen-specific IFN-γ-producing CD8+ T cell response after oral mucosal administration of antigen. Consequently, we suggest that Co1 peptide-mediated C5aR targeting of antigen into M cells can be used for the induction of an effective antigen-specific CD8+ T cell immune response in oral mucosal vaccine development.
Collapse
Affiliation(s)
- Sae-Hae Kim
- Department of Molecular Biology and the Institute for Molecular Biology and Genetics, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - Yu Na Kim
- Department of Bioactive Material Sciences and Research Center of Bioactive Materials, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - Ju Kim
- Department of Molecular Biology and the Institute for Molecular Biology and Genetics, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - Yong-Suk Jang
- Department of Molecular Biology and the Institute for Molecular Biology and Genetics, Chonbuk National University, Jeonju 54896, Republic of Korea; Department of Bioactive Material Sciences and Research Center of Bioactive Materials, Chonbuk National University, Jeonju 54896, Republic of Korea.
| |
Collapse
|
9
|
Kim SH, Jang YS. The development of mucosal vaccines for both mucosal and systemic immune induction and the roles played by adjuvants. Clin Exp Vaccine Res 2017; 6:15-21. [PMID: 28168169 PMCID: PMC5292352 DOI: 10.7774/cevr.2017.6.1.15] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/21/2016] [Accepted: 12/23/2016] [Indexed: 01/22/2023] Open
Abstract
Vaccination is the most successful immunological practice that improves the quality of human life and health. Vaccine materials include antigens of pathogens and adjuvants potentiating the effectiveness of vaccination. Vaccines are categorized using various criteria, including the vaccination material used and the method of administration. Traditionally, vaccines have been injected via needles. However, given that most pathogens first infect mucosal surfaces, there is increasing interest in the establishment of protective mucosal immunity, achieved by vaccination via mucosal routes. This review summarizes recent developments in mucosal vaccines and their associated adjuvants.
Collapse
Affiliation(s)
- Sae-Hae Kim
- Department of Molecular Biology and Institute for Molecular Biology and Genetics, Chonbuk National University, Jeonju, Korea
| | - Yong-Suk Jang
- Department of Molecular Biology and Institute for Molecular Biology and Genetics, Chonbuk National University, Jeonju, Korea.; Department of Bioactive Material Sciences and Research Center of Bioactive Materials, Chonbuk National University, Jeonju, Korea
| |
Collapse
|