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Xu JW, Tang SQ, Lin J, Li YJ, Shen D, Ding GH, Shen XY, Wang LN. NTPDase1-ATP-P2Y2Rs axis in the sciatic nerve contributes to acupuncture at "Zusanli" (ST36)-induced analgesia in ankle arthritis rats. Brain Res Bull 2024; 209:110909. [PMID: 38402994 DOI: 10.1016/j.brainresbull.2024.110909] [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: 11/30/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND The efficacy of acupuncture at Zusanli (ST36) in alleviating lower-limb pain is widely acknowledged in clinical practice, while its underlying mechanism remains incompletely elucidated. Our previous research had revealed that the prompt analgesia induced by needling-ST36 was accompanied by expression alterations in certain exco-nucleotidases within the sciatic nerve. Building upon this finding, the current work focused on NTPDase1, the primary ecto-nucleotidase in the human body, which converts ATP into AMP. METHODS A 20-min acupuncture was administered unilaterally at the ST36 on rats with acute ankle arthritis. The pain thresholds of the injured hind paws were determined. Pharmacological interference was carried out by introducing the corresponding reagents to the sciatic nerve. ATP levels around the excised nerve were measured using a luciferase-luciferin assay. Live calcium imaging, utilizing the Fura 2-related-F340/F380 ratio, was conducted on Schwann cells in excised nerves and cultured rat SCs line, RSC96 cells. RESULTS The analgesic effect induced by needling-ST36 was impaired when preventing ATP degradation via inhibiting NTPDase1 activities with ARL67156 or Ticlopidine. Conversely, increasing NTPDase1 activities with Apyrase duplicated the acupuncture effect. Similarly, preventing the conversion of AMP to adenosine via suppression of NT5E with AMP-CP hindered the acupuncture effect. Unexpectedly, impeded ATP hydrolysis ability and diminished NTPDase1 expression were observed in the treated group. Agonism at P2Y2Rs with ATP, UTP, or INS365 resulted in anti-nociception. Contrarily, antagonism at P2Y2Rs with Suramin or AR-C 118925xx prevented acupuncture analgesia. Immunofluorescent labeling demonstrated that the treated rats expressed more P2Y2Rs that were predominant in Schwann cells. Suppression of Schwann cells by inhibiting ErbB receptors also prevented acupuncture analgesia. Finally, living imaging on the excised nerves or RSC96 cells showed that agonism at P2Y2Rs indeed led to [Ca2+]i rise. CONCLUSION These findings strongly suggest that the analgesic mechanism of needling-ST36 on the hypersensation in the lower limb partially relies on NTPDase1 activities in the sciatic nerve. In addition to facilitating adenosine signaling in conjunction with NT5E, most importantly, NTPDase1 may provide an appropriate low-level ATP milieu for the activation of P2Y2R in the sciatic nerve, particularly in Schwann cells.
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Affiliation(s)
- Jing-Wen Xu
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Si-Qi Tang
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Jie Lin
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Yu-Jia Li
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Dan Shen
- School of Health Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China
| | - Guang-Hong Ding
- Shanghai Key Laboratory of Acupuncture Mechanism and Acupoint Function (21DZ2271800), Department of Aeronautics and Astronautics, Fudan University, Shanghai 200433, China
| | - Xue-Yong Shen
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China; Shanghai Research Center for Acupuncture and Meridians, Shanghai 201203, China
| | - Li-Na Wang
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China.
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Gardani CFF, Pedrazza EL, Paz VS, Zanirati GG, da Costa JC, Andrejew R, Ulrich H, Scholl JN, Figueiró F, Rockenbach L, Morrone FB. Exploring CD39 and CD73 Expression as Potential Biomarkers in Prostate Cancer. Pharmaceuticals (Basel) 2023; 16:1619. [PMID: 38004484 PMCID: PMC10675019 DOI: 10.3390/ph16111619] [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: 09/01/2023] [Revised: 10/22/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023] Open
Abstract
Prostate cancer (PC) is the most diagnosed tumor in males and ranks as the second leading cause of male mortality in the western world. The CD39 and CD73 enzymes play a crucial role in cancer regulation by degrading nucleotides and forming nucleosides. This study aimed to investigate the expression of the CD39 and CD73 enzymes as potential therapeutic targets for PC. The initial part of this study retrospectively analyzed tissue samples from 23 PC patients. Using the TissueFAXSTM cytometry platform, we found significantly higher levels of CD39-labeling its intensity compared to CD73. Additionally, we observed a correlation between the Gleason score and the intensity of CD39 expression. In the prospective arm, blood samples were collected from 25 patients at the time of diagnosis and after six months of treatment to determine the expression of CD39 and CD73 in the serum extracellular vesicles (EVs) and to analyze nucleotide hydrolysis. Notably, the expression of CD39 in the EVs was significantly increased compared to the CD73 and/or combined CD39/CD73 expression levels at initial collection. Furthermore, our results demonstrated positive correlations between ADP hydrolysis and the transurethral resection and Gleason score. Understanding the role of ectonucleotidases is crucial for identifying new biomarkers in PC.
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Affiliation(s)
- Carla Fernanda Furtado Gardani
- Escola de Medicina, Programa de Pós-Graduaҫão em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre 90619-900, RS, Brazil; (C.F.F.G.); (L.R.)
- Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, Partenon, Porto Alegre 90619-900, RS, Brazil; (E.L.P.); (V.S.P.)
| | - Eduardo Luiz Pedrazza
- Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, Partenon, Porto Alegre 90619-900, RS, Brazil; (E.L.P.); (V.S.P.)
| | - Victória Santos Paz
- Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, Partenon, Porto Alegre 90619-900, RS, Brazil; (E.L.P.); (V.S.P.)
| | - Gabriele Goulart Zanirati
- Instituto do Cérebro da PUCRS, InsCer, Avenida Ipiranga, 6690, Jardim Botânico, Porto Alegre 906010-000, RS, Brazil; (G.G.Z.); (J.C.d.C.)
| | - Jaderson Costa da Costa
- Instituto do Cérebro da PUCRS, InsCer, Avenida Ipiranga, 6690, Jardim Botânico, Porto Alegre 906010-000, RS, Brazil; (G.G.Z.); (J.C.d.C.)
| | - Roberta Andrejew
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Prof. Lineu Prestes, 748, Butantã, São Paulo 05508-000, SP, Brazil; (R.A.); (H.U.)
| | - Henning Ulrich
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Prof. Lineu Prestes, 748, Butantã, São Paulo 05508-000, SP, Brazil; (R.A.); (H.U.)
| | - Juliete Nathali Scholl
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, UFRGS, Porto Alegre 90035-003, RS, Brazil; (J.N.S.); (F.F.)
| | - Fabrício Figueiró
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, UFRGS, Porto Alegre 90035-003, RS, Brazil; (J.N.S.); (F.F.)
| | - Liliana Rockenbach
- Escola de Medicina, Programa de Pós-Graduaҫão em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre 90619-900, RS, Brazil; (C.F.F.G.); (L.R.)
- Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, Partenon, Porto Alegre 90619-900, RS, Brazil; (E.L.P.); (V.S.P.)
| | - Fernanda Bueno Morrone
- Escola de Medicina, Programa de Pós-Graduaҫão em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre 90619-900, RS, Brazil; (C.F.F.G.); (L.R.)
- Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, Partenon, Porto Alegre 90619-900, RS, Brazil; (E.L.P.); (V.S.P.)
- Instituto do Cérebro da PUCRS, InsCer, Avenida Ipiranga, 6690, Jardim Botânico, Porto Alegre 906010-000, RS, Brazil; (G.G.Z.); (J.C.d.C.)
- Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduaҫão em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre 90619-900, RS, Brazil
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Nuñez-Rios JD, Ulrich H, Díaz-Muñoz M, Lameu C, Vázquez-Cuevas FG. Purinergic system in cancer stem cells. Purinergic Signal 2023:10.1007/s11302-023-09976-5. [PMID: 37966629 DOI: 10.1007/s11302-023-09976-5] [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: 06/10/2023] [Accepted: 10/25/2023] [Indexed: 11/16/2023] Open
Abstract
Accumulating evidence supports the idea that cancer stem cells (CSCs) are those with the capacity to initiate tumors, generate phenotypical diversity, sustain growth, confer drug resistance, and orchestrate the spread of tumor cells. It is still controversial whether CSCs originate from normal stem cells residing in the tissue or cancer cells from the tumor bulk that have dedifferentiated to acquire stem-like characteristics. Although CSCs have been pointed out as key drivers in cancer, knowledge regarding their physiology is still blurry; thus, research focusing on CSCs is essential to designing novel and more effective therapeutics. The purinergic system has emerged as an important autocrine-paracrine messenger system with a prominent role at multiple levels of the tumor microenvironment, where it regulates cellular aspects of the tumors themselves and the stromal and immune systems. Recent findings have shown that purinergic signaling also participates in regulating the CSC phenotype. Here, we discuss updated information regarding CSCs in the purinergic system and present evidence supporting the idea that elements of the purinergic system expressed by this subpopulation of the tumor represent attractive pharmacological targets for proposing innovative anti-cancer therapies.
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Affiliation(s)
- J D Nuñez-Rios
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla #3001, Juriquilla Querétaro, Querétaro, CP 76230, México
| | - H Ulrich
- Department of Biochemistry, Chemistry Institute, University of São Paulo (USP), São Paulo, Brazil
| | - M Díaz-Muñoz
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla #3001, Juriquilla Querétaro, Querétaro, CP 76230, México
| | - C Lameu
- Department of Biochemistry, Chemistry Institute, University of São Paulo (USP), São Paulo, Brazil
| | - F G Vázquez-Cuevas
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla #3001, Juriquilla Querétaro, Querétaro, CP 76230, México.
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Liu C, Wang X, Wang S, Xiang J, Xie H, Tan Z, Li X, Zhang J, Dong W. Comprehensive analysis of P2Y family genes expression, immune characteristics, and prognosis in pan-cancer. Transl Oncol 2023; 37:101776. [PMID: 37672858 PMCID: PMC10485639 DOI: 10.1016/j.tranon.2023.101776] [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: 03/28/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023] Open
Abstract
BACKGROUND P2Y receptors are a family of G protein-coupled receptor genes that have an important function in cancer development and metastasis. However, systematic studies have not been conducted on human tumors. This study attempted to explore the role of P2Y family genes (P2Ys) in pan-cancer. METHODS Gene expression and clinical data were downloaded from The Cancer Genome Alas dataset. Gene differential expression, mutation, prognosis, tumor microenvironment (TME) (containing immune cells infiltration, Estimate/immune/stromal scores, immune checkpoints, immune and molecular subtypes, DNA repair genes and methyltransferase), clinical correlation, protein-protein interaction network and functional enrichment analysis were performed. In addition, experiments such as western blots were performed for validation. RESULTS Eight P2Ys were differentially expressed in most tumor and normal tissues, and their abnormal expression in a variety of cancers could significantly reduce the survival rate of patients. Expression levels of P2Ys, especially P2Y6, P2Y12, P2Y13, P2Y14, were correlated significantly with immune cells, immune checkpoint genes, immune and molecular subtypes and Estimate/immune/stromal scores in a variety of cancers such as uveal melanoma, liver hepatocellular carcinoma, stomach adenocarcinoma, colorectal cancer (CRC), prostate adenocarcinoma, breast invasive carcinoma and uterine corpus endometrial carcinoma (all p < 0.05). P2Ys play an important role in TME and are involved in immune regulation. In addition, enrichment analysis and western blots showed that the levels of P2Y2 and P2Y6 expression regulate the Akt/GSK-3β/β-catenin pathway in CRC, thereby affecting epithelial-to-mesenchymal transition. CONCLUSION P2Ys may be used as potential pan-cancer biomarkers in prognosis and immunology. They may also be new targets for tumor immunotherapy, which has wide clinical implications.
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Affiliation(s)
- Chuan Liu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xiaoli Wang
- Department of Plastic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Siwei Wang
- Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Jiankang Xiang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Huabing Xie
- Department of General Practice, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Zongbiao Tan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xinshu Li
- Department of Clinical Medicine, Xi'an Medical of University, Xi'an 710068, China
| | - Jixiang Zhang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Weiguo Dong
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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Chen S, Luo X, Yang B, Zhuang J, Guo J, Zhu Y, Mo J. The combined signatures of G protein-coupled receptor family and immune landscape provide a prognostic and therapeutic biomarker in endometrial carcinoma. J Cancer Res Clin Oncol 2023; 149:14701-14719. [PMID: 37584707 PMCID: PMC10602984 DOI: 10.1007/s00432-023-05270-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 08/09/2023] [Indexed: 08/17/2023]
Abstract
G protein-coupled receptors (GPRs) are one of the largest surface receptor superfamilies, and many of them play essential roles in biological processes, including immune responses. In this study, we aim to construct a GPR- and tumor immune environment (TME-i)-associated risk signature to predict the prognosis of patients with endometrial carcinoma (EC). The GPR score was generated by applying univariate Cox regression and the Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression in succession. This involved identifying the differentially expressed genes (DEGs) in the Cancer Genome Atlas-Uterine Corpus Endometrioid Carcinoma (TCGA-UCEC) cohort. Simultaneously, the CIBERSORT algorithm was applied to identify the protective immune cells for TME score construction. Subsequently, we combined the GPR and TME scores to establish a GPR-TME classifier for conducting clinical prognosis assessments. Various functional annotation algorithms were used to conduct biological process analysis distinguished by GPR-TME subgroups. Furthermore, weighted correlation network analysis (WGCNA) was applied to depict the tumor somatic mutations landscapes. Finally, we compared the immune-related molecules between GPR-TME subgroups and resorted to the Tumor Immune Dysfunction and Exclusion (TIDE) for immunotherapy response prediction. The mRNA and protein expression of GPR-related gene P2RY14 were, respectively, validated by RT-PCR in clinical samples and HPA database. To conclude, our GPR-TME classifier may aid in predicting the EC patients' prognosis and immunotherapy responses.
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Affiliation(s)
- Shengyue Chen
- Dalian Medical University, Dalian, Liaoning, China
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Xukai Luo
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Baicai Yang
- Jiaxing University Affiliated Women and Children Hospital, Jiaxing, China
| | - Jingming Zhuang
- Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinshuai Guo
- Dalian Medical University, Dalian, Liaoning, China
| | - Yingjie Zhu
- Jiaxing University Affiliated Women and Children Hospital, Jiaxing, China
| | - Jiahang Mo
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.
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Zhou J, Yang Y, Cheng J, Luan S, Xiao X, Li X, Fang P, Gu Y, Shang Q, Zhang H, Chen L, Zeng X, Yuan Y. MTHFD1L confers a poor prognosis and malignant phenotype in esophageal squamous cell carcinoma by activating the ERK5 signaling pathway. Exp Cell Res 2023; 427:113584. [PMID: 37004948 DOI: 10.1016/j.yexcr.2023.113584] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/05/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Abstract
MTHFD1L, a key enzyme of folate metabolism, is seldom reported in cancer. In this study, we investigate the role of MTHFD1L in the tumorigenicity of esophageal squamous cell carcinoma (ESCC). ESCC tissue microarrays (TMAs) containing samples from 177 patients were utilized to evaluate whether MTHFD1L expression, determined using immunohistochemical analysis, is a prognostic indicator for ESCC patients. The function of MTHFD1L in the migration of ESCC cells was studied with wound healing, Transwell, and three-dimensional spheroid invasion assays in vitro and a lung metastasis mouse model in vivo. The mRNA microarrays and Ingenuity pathway analysis (IPA) were used to explore the downstream of MTHFD1L. Elevated expression of MTHFD1L in ESCC tissues was significantly associated with poor differentiation and prognosis. These phenotypic assays revealed that MTHFD1L significantly promote the viability and metastasis of ESCC cell in vivo and in vitro. Further detailed analyses of the molecular mechanism demonstrated that the ESCC progression driven by MTHFD1L was through up-regulation ERK5 signaling pathways. These findings reveal that MTHFD1L is positively associated with the aggressive phenotype of ESCC by activating ERK5 signaling pathways, suggesting that MTHFD1L is a new biomarker and a potential molecular therapeutic target for ESCC.
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Affiliation(s)
- Jianfeng Zhou
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yushang Yang
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jiahan Cheng
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Siyuan Luan
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xin Xiao
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaokun Li
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Pinhao Fang
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yimin Gu
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qixin Shang
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hanlu Zhang
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Longqi Chen
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaoxi Zeng
- Biomedical Big Data Center of West China Hospital, Med+X Center for Informatics, Sichuan University, Chengdu, 610041, China
| | - Yong Yuan
- Department of Thoracic Surgery, Med+X Center for Informatics, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Jia D, Li B, Wang JK, Wang P, Li CY, Lu LX, Tian WY, Yu XH, Zhang JC, Zheng Y. Expression and Correlation of MIF and ERK1/2 in Liver Cirrhosis and Hepatocellular Carcinoma Induced by Hepatitis B. Pharmgenomics Pers Med 2023; 16:381-388. [PMID: 37124953 PMCID: PMC10145491 DOI: 10.2147/pgpm.s398976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/31/2023] [Indexed: 05/02/2023] Open
Abstract
Objective To detect expression and phosphorylation level of macrophage migration inhibitor (MIF) and extracellular-regulated kinases 1 and 2 (ERK1/2) in hepatitis B-induced liver cirrhosis (HBILC) and hepatocellular carcinoma (HCC) with a background of HBILC and analyze the correlation of MIF and ERK1/2 with HBILC and HCC. Methods Twenty cases of normal liver tissues were collected as a control group, and 48 specimens of HBILC tissues and 48 specimens of HCC tissues were collected as the experimental group, which were assigned as the HBILC group and HCC group, respectively. All tissue specimens were processed into tissue chips. The expressions of MIF, ERK1/2, and their phosphorylated proteins were detected via immunohistochemistry, and MIF and ERK1/2 nucleic acid expressions were detected by in situ hybridization. The results were statistically analyzed using the chi-square test. Results Proteins and nucleic acids of MIF and ERK1/2 presented low expression in the control group and high expression in the HBILC group and HCC group. MIF expression in the three groups was 25.0%, 75.0%, and 79.17%, respectively, while that of the nucleic acids was 25.0%, 70.83%, and 68.75%, respectively. Expression of ERK1/2 in the three groups was 40.0%, 60.42%, and 81.25%, respectively, and that of nucleic acids was 40.0%, 79.17%, and 77.08%. Expression of pERK1/2 was low in the control and HBILC group and high in the HCC group. Expression of pERK1/2 in the three groups was 20%, 45.83%, and 75%, respectively. Expression of pERK1/2 in the HCC group was significantly different from that in the HBILC and control group (P<0.05), but the difference between the HBILC group and control group was not statistically significant (P>0.05). Conclusion Occurrence and development of HBILC and HCC are not only related to the high expression of MIF but also closely related to the activation of the ERK1/2 signaling pathway.
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Affiliation(s)
- Dong Jia
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
| | - Bin Li
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
| | - Jun-Ke Wang
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
| | - Pan Wang
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
| | - Chu-Yi Li
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
| | - Li-Xia Lu
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
| | - Wen-Yan Tian
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
| | - Xiao-Hui Yu
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
- Correspondence: Xiao-Hui Yu; Jiu-Cong Zhang, Department of Gastroenterology, The 940 Hospital of Joint Logistic Support Force of People’s Liberation Army, No. 333 of Binhenan Road, Qilihe District, Lanzhou, 730050, People’s Republic of China, Tel +86 13919914665; +86 13919919690, Email ;
| | - Jiu-Cong Zhang
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
| | - Ying Zheng
- Department of Gastroenterology, The 940th Hospital of Joint Service Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, People’s Republic of China
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8
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Vargas P, Scheffel TB, Diz FM, Rockenbach L, Grave N, Cappellari AR, Kist LW, Bogo MR, Thomé MP, Leal GF, de Fraga Dias A, Figueiró F, Filippi-Chiela EC, Lenz G, Morrone FB. P2Y 12 receptor antagonism inhibits proliferation, migration and leads to autophagy of glioblastoma cells. Purinergic Signal 2022; 18:481-494. [PMID: 35939198 PMCID: PMC9832208 DOI: 10.1007/s11302-022-09888-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/21/2022] [Indexed: 01/14/2023] Open
Abstract
Glioblastoma (GBM) is the most aggressive and lethal among the primary brain tumors, with a low survival rate and resistance to radio and chemotherapy. The P2Y12 is an adenosine diphosphate (ADP) purinergic chemoreceptor, found mainly in platelets. In cancer cells, its activation has been described to induce proliferation and metastasis. Bearing in mind the need to find new treatments for GBM, this study aimed to investigate the role of the P2Y12R in the proliferation and migration of GBM cells, as well as to evaluate the expression of this receptor in patients' data obtained from the TCGA data bank. Here, we used the P2Y12R antagonist, ticagrelor, which belongs to the antiplatelet agent's class. The different GBM cells (cell line and patient-derived cells) were treated with ticagrelor, with the agonist, ADP, or both, and the effects on cell proliferation, colony formation, ADP hydrolysis, cell cycle and death, migration, and cell adhesion were analyzed. The results showed that ticagrelor decreased the viability and the proliferation of GBM cells. P2Y12R antagonism also reduced colony formation and migration potentials, with alterations on the expression of metalloproteinases, and induced autophagy in GBM cells. Changes were observed at the cell cycle level, and only the U251 cell line showed a significant reduction in the ADP hydrolysis profile. TCGA data analysis showed a higher expression of P2Y12R in gliomas samples when compared to the other tumors. These data demonstrate the importance of the P2Y12 receptor in gliomas development and reinforce its potential as a pharmacological target for glioma treatment.
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Affiliation(s)
- Pedro Vargas
- grid.412519.a0000 0001 2166 9094Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil ,grid.412519.a0000 0001 2166 9094Programa de Pós-Graduação em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Thamiris Becker Scheffel
- grid.412519.a0000 0001 2166 9094Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Fernando Mendonça Diz
- grid.412519.a0000 0001 2166 9094Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Liliana Rockenbach
- grid.412519.a0000 0001 2166 9094Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil ,grid.412519.a0000 0001 2166 9094Programa de Pós-Graduação em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Nathália Grave
- grid.412519.a0000 0001 2166 9094Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil ,grid.412519.a0000 0001 2166 9094Programa de Pós-Graduação em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Angélica Regina Cappellari
- grid.412519.a0000 0001 2166 9094Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Luiza Wilges Kist
- grid.412519.a0000 0001 2166 9094Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil ,grid.412519.a0000 0001 2166 9094Laboratório de Biologia Genômica e Molecular, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Maurício Reis Bogo
- grid.412519.a0000 0001 2166 9094Programa de Pós-Graduação em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil ,grid.412519.a0000 0001 2166 9094Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil ,grid.412519.a0000 0001 2166 9094Laboratório de Biologia Genômica e Molecular, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Marcos Paulo Thomé
- grid.8532.c0000 0001 2200 7498Departamento de Biofísica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Gabriel Fernandes Leal
- grid.412519.a0000 0001 2166 9094Programa de Pós-Graduação em Ciência da Computação, Escola Politécnica, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Amanda de Fraga Dias
- grid.8532.c0000 0001 2200 7498Departamento de Bioquímica, Instituto de Ciências Básica da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS Brazil
| | - Fabrício Figueiró
- grid.8532.c0000 0001 2200 7498Departamento de Bioquímica, Instituto de Ciências Básica da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS Brazil
| | - Eduardo Cremonese Filippi-Chiela
- grid.8532.c0000 0001 2200 7498Departmento de Ciências Morfológicas, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS Brazil
| | - Guido Lenz
- grid.8532.c0000 0001 2200 7498Departamento de Biofísica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Fernanda Bueno Morrone
- Laboratório de Farmacologia Aplicada, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil. .,Programa de Pós-Graduação em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil. .,Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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9
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Xu J, Yang M, Shao AZ, Pan HW, Fan YX, Chen KP. Identification and Validation of Common Reference Genes for Normalization of Esophageal Squamous Cell Carcinoma Gene Expression Profiles. BIOMED RESEARCH INTERNATIONAL 2022; 2022:9125242. [PMID: 36467891 PMCID: PMC9711964 DOI: 10.1155/2022/9125242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 09/04/2024]
Abstract
Esophageal squamous cell carcinoma (ESCC) is one of the subtypes of esophageal cancer with Chinese characteristics, and its five-year survival rate is less than 20%. Early diagnosis is beneficial to improving the survival rate of ESCC significantly. Quantitative Real-Time Polymerase Chain Reaction is a high-throughput technique that can quantify tumor-related genes for early diagnosis. Its accuracy largely depends on the stability of the reference gene. There is no systematic scientific basis to demonstrate which reference gene expression is stable in ESCC and no consensus on the selection of internal reference. Therefore, this research used four software programs (The comparative delta-Ct method, GeNorm, NormFinder, and BestKeeper) to evaluate the expression stability of eight candidate reference genes commonly used in other tumor tissues and generated a comprehensive analysis by RefFinder. Randomly selected transcriptome sequencing analysis confirmed the SPP1 gene is closely related to ESCC. It was found that the expression trend of SPP1 obtained by RPS18 and PPIA as internal reference genes were the same as that of sequencing. The results show that RPS18 and PPIA are stable reference genes, and PPIA + RPS18 are a suitable reference gene combination. This is a reference gene report that combines transcriptome sequencing analysis and only focuses on ESCC, which makes the quantification more precise, systematic, and standardized, and promotes gene regulation research and the early diagnosis of ESCC in the future.
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Affiliation(s)
- Jia Xu
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Ming Yang
- Department of General Surgery, Fifth People's Hospital of Huaian City, Huaian, China
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Ai-zhong Shao
- Department of Cardiothorac Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Hui-wen Pan
- Department of Cardiothoracic Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Yi-xuan Fan
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Ke-ping Chen
- School of Life Sciences, Jiangsu University, Zhenjiang, China
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10
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Jasmer KJ, Muñoz Forti K, Woods LT, Cha S, Weisman GA. Therapeutic potential for P2Y 2 receptor antagonism. Purinergic Signal 2022:10.1007/s11302-022-09900-3. [PMID: 36219327 DOI: 10.1007/s11302-022-09900-3] [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: 08/26/2022] [Accepted: 09/22/2022] [Indexed: 10/17/2022] Open
Abstract
G protein-coupled receptors are the target of more than 30% of all FDA-approved drug therapies. Though the purinergic P2 receptors have been an attractive target for therapeutic intervention with successes such as the P2Y12 receptor antagonist, clopidogrel, P2Y2 receptor (P2Y2R) antagonism remains relatively unexplored as a therapeutic strategy. Due to a lack of selective antagonists to modify P2Y2R activity, studies using primarily genetic manipulation have revealed roles for P2Y2R in a multitude of diseases. These include inflammatory and autoimmune diseases, fibrotic diseases, renal diseases, cancer, and pathogenic infections. With the advent of AR-C118925, a selective and potent P2Y2R antagonist that became commercially available only a few years ago, new opportunities exist to gain a more robust understanding of P2Y2R function and assess therapeutic effects of P2Y2R antagonism. This review discusses the characteristics of P2Y2R that make it unique among P2 receptors, namely its involvement in five distinct signaling pathways including canonical Gαq protein signaling. We also discuss the effects of other P2Y2R antagonists and the pivotal development of AR-C118925. The remainder of this review concerns the mounting evidence implicating P2Y2Rs in disease pathogenesis, focusing on those studies that have evaluated AR-C118925 in pre-clinical disease models.
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Affiliation(s)
- Kimberly J Jasmer
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA.,Department of Biochemistry, University of Missouri, Columbia, MO, USA
| | - Kevin Muñoz Forti
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA.,Department of Biochemistry, University of Missouri, Columbia, MO, USA
| | - Lucas T Woods
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA.,Department of Biochemistry, University of Missouri, Columbia, MO, USA
| | - Seunghee Cha
- Department of Oral and Maxillofacial Diagnostic Sciences, Center for Orphaned Autoimmune Disorders, University of Florida College of Dentistry, Gainesville, FL, USA
| | - Gary A Weisman
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, USA. .,Department of Biochemistry, University of Missouri, Columbia, MO, USA.
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11
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Liu ZN, Su QQ, Wang YH, Wu X, Lv XW. Blockade of the P2Y2 Receptor Attenuates Alcoholic Liver Inflammation by Targeting the EGFR-ERK1/2 Signaling Pathway. Drug Des Devel Ther 2022; 16:1107-1120. [PMID: 35444406 PMCID: PMC9013714 DOI: 10.2147/dddt.s346376] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 04/01/2022] [Indexed: 01/12/2023] Open
Affiliation(s)
- Zhen-Ni Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, People’s Republic of China
- The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, People’s Republic of China
- Institute for Liver Diseases of Anhui Medical University, Hefei, People’s Republic of China
| | - Qian-Qian Su
- Department of Pharmacy, the First Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China
| | - Yu-Hui Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, People’s Republic of China
- The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, People’s Republic of China
- Institute for Liver Diseases of Anhui Medical University, Hefei, People’s Republic of China
| | - Xue Wu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, People’s Republic of China
- The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, People’s Republic of China
- Institute for Liver Diseases of Anhui Medical University, Hefei, People’s Republic of China
| | - Xiong-Wen Lv
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, People’s Republic of China
- The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, People’s Republic of China
- Institute for Liver Diseases of Anhui Medical University, Hefei, People’s Republic of China
- Correspondence: Xiong-Wen Lv, School of Pharmacy, Anhui Medical University, 81 Mei Shan Road, Hefei, Anhui Province, 230032, People’s Republic of China, Email
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12
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Lau CC, Aminuddin A, Chan KM, Paterson IC, Law LM, Ng PY. Extracellular ATP Induced S-Phase Cell Cycle Arrest via P2Y Receptor-Activated ERK Signaling in Poorly Differentiated Oral Squamous Cell Carcinoma SAS Cells. Life (Basel) 2021; 11:1170. [PMID: 34833046 PMCID: PMC8624497 DOI: 10.3390/life11111170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/23/2021] [Accepted: 10/29/2021] [Indexed: 12/19/2022] Open
Abstract
Extracellular ATP in the tumor microenvironment exhibits either pro- or antitumor effect via interaction with P2Y receptors, but the intracellular signaling and functional roles of P2Y receptors in oral squamous cell carcinoma (OSCC) are unclear. We aimed to study the effect of ATP on OSCC cell lines and the potential mechanisms involved. Through GEPIA dataset analysis, high expression levels of mRNA encoding P2Y receptors, the ATP-induced G protein-coupled receptors, were associated with better overall patient survival in head and neck squamous cell carcinoma. qPCR analysis showed that the poorly differentiated OSCC SAS cell line, had higher P2RY1 expression level compared to the well-differentiated H103 and H376 cell lines. Western blotting and flow cytometry analyses revealed that ATP phosphorylated ERK and elevated intracellular calcium signaling in all tested cell lines. A significant S-phase cell cycle arrest was observed in SAS, and preincubation with the MEK inhibitor PD0325901 reversed the ATP-induced S-phase arrest. We further demonstrated that ATP induced a slight reduction in cell count and colony formation yet significant apoptosis in SAS. Overall, we postulate that the ATP-induced S-phase arrest effect in SAS cells may be regulated through P2Y receptor-mediated ERK signaling, thus suggesting a potential antitumor effect of ATP via interaction with its distinct profile of P2Y receptors.
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Affiliation(s)
- Chia Chih Lau
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (C.C.L.); (A.A.); (L.M.L.)
| | - Amnani Aminuddin
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (C.C.L.); (A.A.); (L.M.L.)
| | - Kok Meng Chan
- Center for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia;
| | - Ian C. Paterson
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur 50603, Malaysia;
| | - Lok Mun Law
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (C.C.L.); (A.A.); (L.M.L.)
| | - Pei Yuen Ng
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (C.C.L.); (A.A.); (L.M.L.)
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13
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Shihan M, Novoyatleva T, Lehmeyer T, Sydykov A, Schermuly RT. Role of the Purinergic P2Y2 Receptor in Pulmonary Hypertension. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182111009. [PMID: 34769531 PMCID: PMC8582672 DOI: 10.3390/ijerph182111009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 11/29/2022]
Abstract
Pulmonary arterial hypertension (PAH), group 1 pulmonary hypertension (PH), is a fatal disease that is characterized by vasoconstriction, increased pressure in the pulmonary arteries, and right heart failure. PAH can be described by abnormal vascular remodeling, hyperproliferation in the vasculature, endothelial cell dysfunction, and vascular tone dysregulation. The disease pathomechanisms, however, are as yet not fully understood at the molecular level. Purinergic receptors P2Y within the G-protein-coupled receptor family play a major role in fluid shear stress transduction, proliferation, migration, and vascular tone regulation in systemic circulation, but less is known about their contribution in PAH. Hence, studies that focus on purinergic signaling are of great importance for the identification of new therapeutic targets in PAH. Interestingly, the role of P2Y2 receptors has not yet been sufficiently studied in PAH, whereas the relevance of other P2Ys as drug targets for PAH was shown using specific agonists or antagonists. In this review, we will shed light on P2Y receptors and focus more on the P2Y2 receptor as a potential novel player in PAH and as a new therapeutic target for disease management.
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14
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P2Y 12 Purinergic Receptor and Brain Tumors: Implications on Glioma Microenvironment. Molecules 2021; 26:molecules26206146. [PMID: 34684726 PMCID: PMC8540665 DOI: 10.3390/molecules26206146] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/30/2021] [Accepted: 10/07/2021] [Indexed: 12/17/2022] Open
Abstract
Gliomas are the most common malignant brain tumors in adults, characterized by a high proliferation and invasion. The tumor microenvironment is rich in growth-promoting signals and immunomodulatory pathways, which increase the tumor's aggressiveness. In response to hypoxia and glioma therapy, the amounts of adenosine triphosphate (ATP) and adenosine diphosphate (ADP) strongly increase in the extracellular space, and the purinergic signaling is triggered by nucleotides' interaction in P2 receptors. Several cell types are present in the tumor microenvironment and can facilitate tumor growth. In fact, tumor cells can activate platelets by the ADP-P2Y12 engagement, which plays an essential role in the cancer context, protecting tumors from the immune attack and providing molecules that contribute to the growth and maintenance of a rich environment to sustain the protumor cycle. Besides platelets, the P2Y12 receptor is expressed by some tumors, such as renal carcinoma, colon carcinoma, and gliomas, being related to tumor progression. In this context, this review aims to depict the glioma microenvironment, focusing on the relationship between platelets and tumor malignancy.
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Purinergic P2Y2 and P2X4 Receptors Are Involved in the Epithelial-Mesenchymal Transition and Metastatic Potential of Gastric Cancer Derived Cell Lines. Pharmaceutics 2021; 13:pharmaceutics13081234. [PMID: 34452195 PMCID: PMC8398939 DOI: 10.3390/pharmaceutics13081234] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 12/14/2022] Open
Abstract
Gastric cancer (GC) is a major health concern worldwide, presenting a complex pathophysiology that has hindered many therapeutic efforts so far. In this context, purinergic signaling emerges as a promising pathway for intervention due to its known role in cancer cell proliferation and migration. In this work, we explored in more detail the role of purinergic signaling in GC with several experimental approaches. First, we measured extracellular ATP concentrations on GC-derived cell lines (AGS, MKN-45, and MKN-74), finding higher levels of extracellular ATP than those obtained for the non-tumoral gastric cell line GES-1. Next, we established the P2Y2 and P2X4 receptors (P2Y2R and P2X4R) expression profile on these cells and evaluated their role on cell proliferation and migration after applying overexpression and knockdown strategies. In general, a P2Y2R overexpression and P2X4R downregulation pattern were observed on GC cell lines, and when these patterns were modified, concomitant changes in cell viability were observed. These modifications on gene expression also modified transepithelial electrical resistance (TEER), showing that higher P2Y2R levels decreased TEER, and high P2X4R expression had the opposite effect, suggesting that P2Y2R and P2X4R activation could promote and suppress epithelial-mesenchymal transition (EMT), respectively. These effects were confirmed after treating AGS cells with UTP, a P2Y2R-agonist that modified the expression patterns towards mesenchymal markers. To further characterize the effects of P2Y2R activation on EMT, we used cDNA microarrays and observed that UTP induced important transcriptional changes on several cell processes like cell proliferation induction, apoptosis inhibition, cell differentiation induction, and cell adhesion reduction. These results suggest that purinergic signaling plays a complex role in GC pathophysiology, and changes in purinergic balance can trigger tumorigenesis in non-tumoral gastric cells.
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