Purinergic Signalling最新文献

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P2 purinergic receptor expression and function in tumor-related immune cells. 肿瘤相关免疫细胞中 P2 嘌呤能受体的表达和功能。
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2024-10-10 DOI: 10.1007/s11302-024-10054-7
Vahinipriya Manoharan, Oluwafemi O Adegbayi, Janielle P Maynard
{"title":"P2 purinergic receptor expression and function in tumor-related immune cells.","authors":"Vahinipriya Manoharan, Oluwafemi O Adegbayi, Janielle P Maynard","doi":"10.1007/s11302-024-10054-7","DOIUrl":"10.1007/s11302-024-10054-7","url":null,"abstract":"<p><p>P2 purinergic receptor expression is dysregulated in multiple cancer subtypes and is associated with worse outcomes. Studies identify roles for P2 purinergic receptors in tumor cells that drive disease aggressiveness. There is also sufficient evidence that P2 purinergic receptor expression within the tumor microenvironment (TME) is critical for disease initiation and progression. Immune cells constitute a significant component of the TME and display both tumorigenic and anti-tumorigenic potential. Studies pre-dating the investigation of P2 purinergic receptors in cancer identify P2 receptor expression on multiple immune cells including macrophages, neutrophils, T-cells, and dendritic cells; all of which are implicated in tumor initiation, tumor promotion, or response to treatment. Herein, we discuss P2 purinergic receptor expression and function in tumor-related immune cells. We provide a rationale for further investigations of P2 purinergic receptors within the TME to better define the mechanistic pathways of inflammation-mediate tumorigenesis and explore P2 purinergic receptors as potential targets for novel immunotherapeutic approaches.</p>","PeriodicalId":20952,"journal":{"name":"Purinergic Signalling","volume":" ","pages":"393-411"},"PeriodicalIF":3.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12222599/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142401118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Promoting glymphatic flow: A non-invasive strategy using 40 Hz light flickering. 促进淋巴流动:使用 40 Hz 灯光闪烁的非侵入性策略。
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2024-10-01 DOI: 10.1007/s11302-024-10052-9
Jianchen Fan, Zhihua Gao
{"title":"Promoting glymphatic flow: A non-invasive strategy using 40 Hz light flickering.","authors":"Jianchen Fan, Zhihua Gao","doi":"10.1007/s11302-024-10052-9","DOIUrl":"10.1007/s11302-024-10052-9","url":null,"abstract":"<p><p>The glymphatic system is critical for brain homeostasis by eliminating metabolic waste, whose disturbance contributes to the accumulation of pathogenic proteins in neurodegenerative diseases. Promoting glymphatic clearance is a potential and attractive strategy for several brain disorders, including neurodegenerative diseases. Previous studies have uncovered that 40 Hz flickering augmented glymphatic flow and facilitated sleep (Zhou et al. in Cell Res 34:214-231, 2024) since sleep drives waste clearance via glymphatic flow (Xie et al. in Science 342:373-377, 2013). However, it remains unclear whether 40 Hz light flickering directly increased glymphatic flow or indirectly by promoting sleep. A recent article published in Cell Discovery by Chen et al. (Sun et al. in Cell Discov 10:81, 2024) revealed that 40 Hz light flickering facilitated glymphatic flow, by promoting the polarization of astrocytic aquaporin-4 (AQP4) and vasomotion through upregulated adenosine-A<sub>2A</sub> receptor (A<sub>2A</sub>R) signaling, independent of sleep. These findings suggest that 40 Hz light flickering may be used as a non-invasive approach to control the function of the glymphatic-lymphatic system, to help remove metabolic waste in the brain, thereby presenting a potential strategy for neurodegenerative disease treatment.</p>","PeriodicalId":20952,"journal":{"name":"Purinergic Signalling","volume":" ","pages":"389-391"},"PeriodicalIF":3.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12222595/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142352831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Purines and purinergic receptors in primary tumors of the central nervous system. 中枢神经系统原发性肿瘤中的嘌呤和嘌呤能受体。
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2024-10-01 DOI: 10.1007/s11302-024-10053-8
Adinei Abadio Soares, Helamã Moraes Dos Santos, Keyllor Nunes Domann, Natália Pratis Rocha Alves, Bernardo Ribeiro Böhm, Carolina Maliska Haack, Kailane Paula Pretto, Emily Sanini Guimarães, Guilherme Francisquini Rocha, Igor Rodrigues de Paula, Lucas Efraim de Alcântara Guimarães, Harlan Cleyton de Ávila Pessoa, Robison David Rodrigues, Angela Makeli Kososki Dalagnol, Marcelo Lemos Vieira da Cunha, Débora Tavares de Resende E Silva
{"title":"Purines and purinergic receptors in primary tumors of the central nervous system.","authors":"Adinei Abadio Soares, Helamã Moraes Dos Santos, Keyllor Nunes Domann, Natália Pratis Rocha Alves, Bernardo Ribeiro Böhm, Carolina Maliska Haack, Kailane Paula Pretto, Emily Sanini Guimarães, Guilherme Francisquini Rocha, Igor Rodrigues de Paula, Lucas Efraim de Alcântara Guimarães, Harlan Cleyton de Ávila Pessoa, Robison David Rodrigues, Angela Makeli Kososki Dalagnol, Marcelo Lemos Vieira da Cunha, Débora Tavares de Resende E Silva","doi":"10.1007/s11302-024-10053-8","DOIUrl":"10.1007/s11302-024-10053-8","url":null,"abstract":"<p><p>Purine nucleotides and nucleosides play critical roles in various pathological conditions, including tumor cell growth. Adenosine triphosphate (ATP) activates pro-tumor receptors, while adenosine (ADO) is a potent immunosuppressant and modulator of cell growth. This study aims to analyze the purinergic actions of ATP and its metabolites, associated enzymes, and P1 or P2 class receptors in primary central nervous system tumors. Additionally, we sought to correlate the levels of nucleosides and the density of P1, P2X, and P2Y receptors in cells with tumor progression. The results indicate that purinergic signaling depends on the receptor concentration and signaling molecules specific to each cell type, tissue, and tumor histology. The purinergic system may function as either a tumor-promoting agent or an antitumor factor, depending on the microenvironmental conditions and the concentrations of receptors and their respective activators. Notably, ATP emerges as the most significant extracellular signal, capable of being converted into other cellular stimulators pertinent to neoplasms, such as adenosine diphosphate, adenosine monophosphate, adenosine, and inosine. Consequently, a cascade of responses to these stimuli promotes tumor development, cell division, and metastasis. Purine nucleotides in central nervous system tumors are pivotal in cellular responses in glioblastoma multiforme, vestibular schwannoma, medulloblastoma, adenomas, gliomas, meningiomas, and pineal tumors. These findings hold the potential for developing novel therapeutic strategies and aiding in therapeutic management.</p>","PeriodicalId":20952,"journal":{"name":"Purinergic Signalling","volume":" ","pages":"429-446"},"PeriodicalIF":3.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12222610/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142352833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A2B adenosine receptor-triggered intracellular calcium mobilization: Cell type-dependent involvement of Gi, Gq, Gs proteins and protein kinase C. A2B腺苷受体触发的细胞内钙动员:Gi, Gq, Gs蛋白和蛋白激酶C的细胞类型依赖性参与
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2025-02-11 DOI: 10.1007/s11302-025-10070-1
Zhan-Guo Gao, Ray R Gao, Clayton K Meyer, Kenneth A Jacobson
{"title":"A<sub>2B</sub> adenosine receptor-triggered intracellular calcium mobilization: Cell type-dependent involvement of G<sub>i</sub>, G<sub>q</sub>, G<sub>s</sub> proteins and protein kinase C.","authors":"Zhan-Guo Gao, Ray R Gao, Clayton K Meyer, Kenneth A Jacobson","doi":"10.1007/s11302-025-10070-1","DOIUrl":"10.1007/s11302-025-10070-1","url":null,"abstract":"<p><p>Activation of PLCβ enzymes by G<sub>iβγ</sub> and G<sub>αq/11</sub> proteins is a common mechanism to trigger cytosolic Ca<sup>2+</sup> increase. We and others reported that G<sub>αq/11</sub> inhibitor FR900359 (FR) can inhibit both G<sub>αq</sub>- and, surprisingly, G<sub>iβγ</sub>-mediated intracellular Ca<sup>2+</sup> mobilization. Thus, the G<sub>αi</sub>-G<sub>βγ</sub>-PLCβ-Ca<sup>2+</sup> signaling axis depends entirely on the presence of active G<sub>αq</sub>, which reasonably explained FR-inhibited G<sub>iβγ</sub>-induced Ca<sup>2+</sup> release. However, the conclusion that G<sub>iβγ</sub> signaling is controlled by G<sub>αq</sub> derives mostly from HEK293 cells. Here we show that indeed in HEK293 cells both G<sub>αq/11</sub> siRNA and G<sub>αq/11</sub> inhibitors diminished Ca<sup>2+</sup> increase triggered by native G<sub>q</sub>-coupled P2Y<sub>1</sub> receptors, or by transfected G<sub>i</sub>-coupled A<sub>1</sub>- or G<sub>s</sub>-coupled A<sub>2B</sub> adenosine receptors (ARs). However, in T24 bladder cancer cells, G<sub>i</sub> inhibitor PTX, but not G<sub>αq/11</sub> inhibitors, FR, YM254890 (YM) or G<sub>q/11</sub> siRNA, inhibited Ca<sup>2+</sup> increase triggered by native A<sub>2B</sub>AR activation. Simultaneous inactivation of G<sub>i</sub> and G<sub>s</sub> further suppressed A<sub>2B</sub>AR-triggered Ca<sup>2+</sup> increase in T24 cells. The G<sub>αq/11</sub> inhibitor YM fully and partially inhibited endogenous P2Y<sub>1</sub>- and β<sub>2</sub>-adrenergic receptor-induced Ca<sup>2+</sup> increase in T24 cells, respectively. PKC activator PMA partially diminished A<sub>2B</sub>AR-triggered but completely diminished β<sub>2</sub>-adrenergic receptor-triggered Ca<sup>2+</sup> increase in T24 cells. Neither β-arrestin1 nor β-arrestin2 siRNA affected A<sub>2B</sub>AR-mediated Ca<sup>2+</sup> increase. Unlike in T24 cells, YM inhibited native A<sub>2B</sub>AR-triggered calcium mobilization in MDA-MB-231 breast cancer cells. Thus, G<sub>αq/11</sub> is vital for Ca<sup>2+</sup> increase in some cell types, but G<sub>iβγ</sub>-mediated Ca<sup>2+</sup> signaling can be Gα<sub>q/11</sub>-dependent or independent based on cell type and receptor activated. Besides G proteins, PKC also modulates cytosolic Ca<sup>2+</sup> increase depending on cell type and receptor.</p>","PeriodicalId":20952,"journal":{"name":"Purinergic Signalling","volume":" ","pages":"499-513"},"PeriodicalIF":3.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12222587/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143399825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The P2X7R is a crucial target for Angiotensin II-induced myocardial ferroptosis and remodeling. P2X7R 是血管紧张素 II 诱导心肌铁质沉积和重塑的关键靶点。
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2024-09-21 DOI: 10.1007/s11302-024-10048-5
Abdel-Aziz S Shatat
{"title":"The P2X<sub>7</sub>R is a crucial target for Angiotensin II-induced myocardial ferroptosis and remodeling.","authors":"Abdel-Aziz S Shatat","doi":"10.1007/s11302-024-10048-5","DOIUrl":"10.1007/s11302-024-10048-5","url":null,"abstract":"<p><p>Ongoing cardiac remodeling can lead to negative outcomes, such as cardiac failure and diminished myocardial function, although the remodeling process initially protects the heart as a compensatory mechanism[1] . Importantly, ferroptosis appears to be a critical process in the development of cardiac disease. In a recent publication in Redox Biology, (Zhong et al. [2] showed that reactive oxygen species (ROS) generation and cardiac ferroptosis may be the mechanisms underlying angiotensin II (Ang II)-induced cardiac remodeling, as well as that ferroptosis is required for heart impairment and cardiac dysfunction induced by Ang II. Moreover, this study provides evidence that Ang II increases the expression of P2X7 receptors (P2X7R) in cardiac tissues and that both silencing and pharmacological inhibition of P2X7R significantly inhibited Ang II-induced ferroptosis and hypertrophy. Also, this work confirmed that P2X7R deficiency mitigated the Ang II-induced deterioration of cardiac injury in mice fed an iron-rich diet. Most interestingly, this study revealed that Ang II directly interacts with the P2X7R to activate and induce nucleocytoplasmic shuttling of human antigen R (HuR), which in turn controls the stability of the mRNA of heme oxygenase 1 (HO-1) and GPX4 and subsequent ROS production, which translated to induction of myocardial ferroptosis and remodeling.</p>","PeriodicalId":20952,"journal":{"name":"Purinergic Signalling","volume":" ","pages":"385-388"},"PeriodicalIF":3.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12222591/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142294026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Astrocytic adenosine A1 receptors: a new potential target for treating sepsis-associated encephalopathy. 星形胶质细胞腺苷 A1 受体:治疗败血症相关脑病的潜在新靶点
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2024-09-06 DOI: 10.1007/s11302-024-10049-4
Si-Le Liu, Yong Tang
{"title":"Astrocytic adenosine A<sub>1</sub> receptors: a new potential target for treating sepsis-associated encephalopathy.","authors":"Si-Le Liu, Yong Tang","doi":"10.1007/s11302-024-10049-4","DOIUrl":"10.1007/s11302-024-10049-4","url":null,"abstract":"","PeriodicalId":20952,"journal":{"name":"Purinergic Signalling","volume":" ","pages":"381-383"},"PeriodicalIF":3.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12222605/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142140904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanosensitive release of ATP in the urinary bladder mucosa. 膀胱粘膜对 ATP 的机械敏感性释放。
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2024-11-14 DOI: 10.1007/s11302-024-10063-6
Violeta N Mutafova-Yambolieva
{"title":"Mechanosensitive release of ATP in the urinary bladder mucosa.","authors":"Violeta N Mutafova-Yambolieva","doi":"10.1007/s11302-024-10063-6","DOIUrl":"10.1007/s11302-024-10063-6","url":null,"abstract":"<p><p>The urinary bladder mucosa (urothelium and suburothelium/lamina propria) functions as a barrier between the content of the urine and the underlying bladder tissue. The bladder mucosa is also a mechanosensitive tissue that releases signaling molecules that affect functions of cells in the bladder wall interconnecting the mucosa with the detrusor muscle and the CNS. Adenosine 5'-triphosphate (ATP) is a primary mechanotransduction signal that is released from cells in the bladder mucosa in response to bladder wall distention and activates cell membrane-localized P2X and P2Y purine receptors on urothelial cells, sensory and efferent neurons, interstitial cells, and detrusor smooth muscle cells. The amounts of ATP at active receptor sites depend significantly on the amounts of extracellularly released ATP. Spontaneous and distention-induced release of ATP appear to be under differential control. This review is focused on mechanisms underlying urothelial release of ATP in response to mechanical stimulation. First, we present a brief overview of studies that report mechanosensitive ATP release in bladder cells or tissues. Then, we discuss experimental evidence for mechanosensitive release of urothelial ATP by vesicular and non-vesicular mechanisms and roles of the stretch-activated channels PIEZO channels, transient receptor potential vanilloid type 4, and pannexin 1. This is followed by brief discussion of possible involvement of calcium homeostasis modulator 1, acid-sensing channels, and connexins in the release of urothelial ATP. We conclude with brief discussion of limitations of current research and of needs for further studies to increase our understanding of mechanotransduction in the bladder wall and of purinergic regulation of bladder function.</p>","PeriodicalId":20952,"journal":{"name":"Purinergic Signalling","volume":" ","pages":"413-428"},"PeriodicalIF":3.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12222603/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142627103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
P2Y12 receptor-mediated cyclooxygenase 2 (COX-2) expression enhances tumor cell progression in a mouse model of lymphoma. 在小鼠淋巴瘤模型中,P2Y12 受体介导的环氧化酶 2 (COX-2) 表达可促进肿瘤细胞的发展。
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2024-10-29 DOI: 10.1007/s11302-024-10057-4
Shilpa Sharma, Khagendra Ghimeray, Md Mostafizur Rahman, Aparna Upadrasta, Ravi Shankar Akundi
{"title":"P2Y12 receptor-mediated cyclooxygenase 2 (COX-2) expression enhances tumor cell progression in a mouse model of lymphoma.","authors":"Shilpa Sharma, Khagendra Ghimeray, Md Mostafizur Rahman, Aparna Upadrasta, Ravi Shankar Akundi","doi":"10.1007/s11302-024-10057-4","DOIUrl":"10.1007/s11302-024-10057-4","url":null,"abstract":"<p><p>The pro-inflammatory enzyme cyclooxygenase 2 (COX-2) has been known to impart metastatic property to cancer cells. However, blocking of COX-2 with nonsteroidal anti-inflammatory drugs or COX-2-specific inhibitors has failed in clinical trials due to adverse effects associated with their prolonged use. We have previously shown that extracellular ATP (eATP), a major component of the tumor microenvironment, enhances COX-2 expression several-fold, both in macrophages and in various cancer cells, by acting on purinergic (P2) receptors. In this study, we show that blocking of P2 receptors significantly reduced tumor growth in a mouse model of lymphoma. Tumors were induced in mice through subcutaneous injection of syngeneic EL4 lymphoma cells. Various P2 receptor antagonists were injected within the tumors after they were palpable. The broad-spectrum P2 receptor antagonist, suramin, P2X7 receptor-specific antagonist, oATP, P2Y6 receptor-specific antagonist, MRS 2578, and P2Y12 receptor-specific antagonist, AR-C 69931, all showed significant arrest in tumor growth. Both suramin and AR-C 69931-treated tumors showed strong reduction in COX-2 expression and modulation of various metastatic markers. Disaggregated cells from AR-C 69931-treated tumors, when injected intravenously in naïve mice, did not exhibit metastasis in various tissues which was observed in mice injected with cells from saline-treated tumors. Our results show that blocking of P2 receptors is a therapeutic alternative to inhibit COX-2 expression, and thereby, arrest tumor progression and metastasis.</p>","PeriodicalId":20952,"journal":{"name":"Purinergic Signalling","volume":" ","pages":"447-464"},"PeriodicalIF":3.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12222609/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The role of the P2X7 receptor in inactivated SARS-CoV-2-induced lung injury. P2X7 受体在灭活 SARS-CoV-2 诱导的肺损伤中的作用
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2024-11-28 DOI: 10.1007/s11302-024-10062-7
N C Carvalho-Barbosa, Fabiana Cristina-Rodrigues, Jairo R Temerozo, Thiago M L Souza, Andre L Gouvêa, Claudio A Canetti, Eleonora Kurtenbach, Dumith Chequer Bou-Habib, Claudia F Benjamim, Christina M Takiya, Luiz E B Savio, Robson Coutinho-Silva
{"title":"The role of the P2X7 receptor in inactivated SARS-CoV-2-induced lung injury.","authors":"N C Carvalho-Barbosa, Fabiana Cristina-Rodrigues, Jairo R Temerozo, Thiago M L Souza, Andre L Gouvêa, Claudio A Canetti, Eleonora Kurtenbach, Dumith Chequer Bou-Habib, Claudia F Benjamim, Christina M Takiya, Luiz E B Savio, Robson Coutinho-Silva","doi":"10.1007/s11302-024-10062-7","DOIUrl":"10.1007/s11302-024-10062-7","url":null,"abstract":"<p><p>Purinergic signaling plays a role in the pathophysiology of different viral infections. Recently, we showed that COVID-19 increases extracellular ATP levels, which may amplify the pro-inflammatory signals in the disease. The P2X7 receptor can be a protagonist in the pro-inflammatory responses. Herein, we investigated the role of the P2X7 receptor in the lung immune response triggered by inoculation of inactivated SARS-CoV-2 (iSARS-CoV-2) in K18-Human ACE2 transgenic mice. Pharmacological inhibition of the P2X7 receptor was performed with intraperitoneal administration of 50 mg/kg of Brilliant Blue G (BBG) one day before viral inoculation. Animals were divided into four groups: a control group (MOCK), a group inoculated with the inactivated virus iSARS-CoV-2, a BBG-treated control group (MOCK + BBG), and a BBG-treated inoculated group (iSARS-CoV-2 + BBG). Virus inoculation was intratracheal with 50 µl of mock or 2 × 10<sup>6</sup> Plaque Forming Units (PFU) of iSARS-CoV-2. After three days, blood and lungs were collected. We found a significant increase in ATP and LDH in serum and mRNA levels of P2X7 and P2Y<sub>12</sub> receptors, CD39, IL-1β, and TNF-α in the lung of the iSARS-CoV-2 group when compared with the control group. BBG treatment attenuated these increases. Lung histological analyses showed severe lung damage in the iSARS-CoV-2 group, which was reduced by the BBG treatment. Immunohistochemical staining confirmed the increased presence of P2X7, P2Y<sub>12</sub>, and CD39 proteins in the iSARS-CoV-2 vs. the MOCK group. Thus, P2X7 receptor inhibition decreases iSARS-CoV-2-induced lung inflammation, indicating that this receptor might contribute to SARS-CoV-2 pathology.</p>","PeriodicalId":20952,"journal":{"name":"Purinergic Signalling","volume":" ","pages":"465-483"},"PeriodicalIF":3.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12222604/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142740370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Extracellular ATP regulates phagocytic activity, mitochondrial respiration, and cytokine secretion of human astrocytic cells. 细胞外ATP调节人类星形细胞的吞噬活性、线粒体呼吸和细胞因子分泌。
IF 3 4区 医学
Purinergic Signalling Pub Date : 2025-06-01 Epub Date: 2025-01-21 DOI: 10.1007/s11302-025-10066-x
Sijie Shirley Yang, Noah A H Brooks, Dylan E Da Silva, Julien Gibon, Hashim Islam, Andis Klegeris
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