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Ochirbat S, Kan TC, Hsu CC, Huang TH, Chuang KH, Chen M, Cheng CC, Chang CC, Rahayu S, Chang J. The angiogenic role of the alpha 9-nicotinic acetylcholine receptor in triple-negative breast cancers. Angiogenesis 2024:10.1007/s10456-024-09944-6. [PMID: 39177676 DOI: 10.1007/s10456-024-09944-6] [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: 03/05/2024] [Accepted: 08/19/2024] [Indexed: 08/24/2024]
Abstract
Nicotine acts as an angiogenic factor by stimulating endogenous cholinergic pathways. Several subtypes of nicotinic acetylcholine receptors (nAChRs) have been demonstrated to be closely correlated to the formation and progression of different types of cancers. Recently, several studies have found that nicotinic acetylcholine receptors α9 (α9-nAChRs) are highly expressed in breast tumors, especially in tumors derived from patients diagnosed at advanced stages. In vitro studies have demonstrated that activation of α9-nAChRs is associated with increased proliferation and migration of breast cancer. To study the tumor-promoting role of α9-nAChRs in breast cancers, we generated a novel anti-α9-nAChR and methoxy-polyethylene glycol (mPEG) bispecific antibody (α9 BsAb) for dissecting the molecular mechanism on α9-nAChR-mediated tumor progression. Unexpectedly, we discovered the angiogenic role of α9-nAChR in nicotine-induced neovascularization of tumors. It revealed α9 BsAbs reduced nicotine-induced endothelial cell tube formation, blood vessel development in Matrigel plug assay and angiogenesis in microtube array membrane murine model (MTAMs). To unbraid the molecular mechanism of α9-nAChR in nicotine-mediated angiogenesis, the α9 BsAbs were applied and revealed the inhibitory roles in nicotine-induced production of hypoxia-inducible factor-2 alpha (HIF-2α), vascular endothelial growth factor A (VEGF-A), phosphorylated vascular endothelial growth factor receptor 2 (p-VEGFR2), vascular endothelial growth factor receptor 2 (VEGFR2) and matrix metalloproteinase-9 (MMP9) from triple-negative breast cancer cells (MDA-MB-231), suggesting α9-nAChRs played an important role in nicotine-induced angiogenesis. To confirm our results, the shRNA targeting α9-nAChRs was designed and used to silence α9-nAChR expression and then evaluated the angiogenic role of α9-nAChRs. The results showed α9 shRNA also played an inhibitory effect in blocking the nicotine-induced angiogenic signaling. Taken together, α9-nAChR played a critical role in nicotine-induced angiogenesis and this bispecific antibody (α9 BsAb) may serve as a potential therapeutic candidate for treatments of the α9 positive cancers.
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Affiliation(s)
- Sonjid Ochirbat
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Tzu-Chun Kan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
- Genomics Research Center, Academia Sinica, Taipei, 115, Taiwan
| | - Chun-Chun Hsu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, 11031, Taiwan
| | - Tzu-Hsuan Huang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
- Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan
| | - Kuo-Hsiang Chuang
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, 11031, Taiwan
| | - Michael Chen
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, 11031, Taiwan
| | - Chun-Chia Cheng
- Research Center of Radiation Medicine, Chang Gung University, Taoyuan, 33302, Taiwan
| | - Chun-Chao Chang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, 11031, Taiwan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
- TMU Research Center for Digestive Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Sri Rahayu
- Department of Biology, Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta, Jakarta, 13220, Indonesia
| | - Jungshan Chang
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.
- International Ph.D. Program for Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.
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Lin X, Wang H, Wu T, Zhu Y, Jiang L. Exosomes derived from stem cells from apical papilla promote angiogenesis via miR-126 under hypoxia. Oral Dis 2023; 29:3408-3419. [PMID: 35722675 DOI: 10.1111/odi.14285] [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: 12/14/2021] [Revised: 05/31/2022] [Accepted: 06/14/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To explore the effect of exosomal miR-126 derived from stem cells from the apical papilla (SCAPs) under hypoxia on human umbilical vein endothelial cell (HUVEC) angiogenesis. METHODS miR-126 mimics plasmids were used to upregulate miR-126 in SCAPs. Internalization of PKH26-labeled exosomes was examined by fluorescent microscopy. CCK-8 assay, Transwell assay, scratch assay, tube formation assay, and Matrigel plug assay were performed to detect the effects of exosomes on the angiogenic ability of HUVECs. The luciferase reporter assay and rescue assay were performed to examine the relationship between miR-126 and sprouty-related, EVH1 domain-containing protein 1 (SPRED1). The involvement of SPRED1 and the extracellular signal-regulated kinase (ERK) signaling pathway was evaluated by western blotting. RESULTS miR-126 expression was upregulated in SCAPs and in SCAP-derived exosomes under hypoxia. miR-126 expression was increased in HUVECs when cocultured with SCAP-derived exosomes. Induced overexpression of miR-126 in hypoxic SCAPs and secreted exosomes resulted in enhanced angiogenesis both in vitro and in vivo. Western blot analysis revealed that miR-126-mediated SPRED1 downregulation induced activation of ERK signaling. CONCLUSIONS Under hypoxic conditions, exosomes derived from SCAPs can promote HUVEC angiogenesis through expression of miR-126, which subsequently suppresses SPRED1 and activates the ERK signaling pathway.
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Affiliation(s)
- Xinhai Lin
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Haodong Wang
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Tiantian Wu
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Yaqin Zhu
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Long Jiang
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
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3
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Lin Y, Zhao Y, Chen M, Li Z, Liu Q, Chen J, Ding Y, Ding C, Ding Y, Qi C, Zheng L, Li J, Zhang R, Zhou J, Wang L, Zhang QQ. CYD0281, a Bcl-2 BH4 domain antagonist, inhibits tumor angiogenesis and breast cancer tumor growth. BMC Cancer 2023; 23:479. [PMID: 37237269 DOI: 10.1186/s12885-023-10974-4] [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: 11/24/2022] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND B-cell lymphoma 2 (Bcl-2) family proteins are key regulators of apoptosis, which possess four conserved Bcl-2 homologies (BH) domains. Among the BH domains, the BH3 domain is considered as a potent 'death domain' while the BH4 domain is required for anti-apoptotic activity. Bcl-2 can be converted to a pro-apoptotic molecule through the removal or mutation of the BH4 domain. Bcl-2 is considered as an inducer of angiogenesis, which can promote tumor vascular network formation and further afford nutrients and oxygen to promote tumor progression. However, whether disrupting the function of the BH4 domain to convert Bcl-2 into a pro-apoptotic molecule could make Bcl-2 possess the potential for anti-angiogenic therapy remains to be defined. METHODS CYD0281 was designed and synthesized according to the lead structure of BDA-366, and its function on inducing a conformational change of Bcl-2 was further evaluated via immunoprecipitation (IP) and immunofluorescence (IF) assays. Moreover, the function of CYD0281 on apoptosis of endothelial cells was analyzed via cell viability, flow cytometry, and western blotting assays. Additionally, the role of CYD0281 on angiogenesis in vitro was determined via endothelial cell migration and tube formation assays and rat aortic ring assay. Chick embryo chorioallantoic membrane (CAM) and yolk sac membrane (YSM) models, breast cancer cell xenograft tumor on CAM and in mouse models as well as the Matrigel plug angiogenesis assay were used to explore the effects of CYD0281 on angiogenesis in vivo. RESULTS We identified a novel potent small-molecule Bcl-2-BH4 domain antagonist, CYD0281, which exhibited significant anti-angiogenic effects both in vitro and in vivo, and further inhibited breast cancer tumor growth. CYD0281 was found to induce conformational changes in Bcl-2 through the exposure of the BH3 domain and convert Bcl-2 from an anti-apoptotic molecule into a cell death inducer, thereby resulting in the apoptosis of vascular endothelial cells. CONCLUSIONS This study has revealed CYD0281 as a novel Bcl-2-BH4 antagonist that induces conformational changes of Bcl-2 to convert to a pro-apoptotic molecule. Our findings indicate that CYD0281 plays a crucial role in anti-angiogenesis and may be further developed as a potential anti-tumor drug candidate for breast cancer. This work also provides a potential anti-angiogenic strategy for breast cancer treatment.
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Affiliation(s)
- Yihua Lin
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yiling Zhao
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Minggui Chen
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Zishuo Li
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Qiao Liu
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jian Chen
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yi Ding
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Chunyong Ding
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Ye Ding
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Cuiling Qi
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Lingyun Zheng
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jiangchao Li
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Rongxin Zhang
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
| | - Lijing Wang
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Qian-Qian Zhang
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
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Zhu Y, Yang X, Zu Y. Integrated analysis of WGCNA and machine learning identified diagnostic biomarkers in dilated cardiomyopathy with heart failure. Front Cell Dev Biol 2022; 10:1089915. [PMID: 36544902 PMCID: PMC9760806 DOI: 10.3389/fcell.2022.1089915] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 11/23/2022] [Indexed: 12/08/2022] Open
Abstract
The etiologies and pathogenesis of dilated cardiomyopathy (DCM) with heart failure (HF) remain to be defined. Thus, exploring specific diagnosis biomarkers and mechanisms is urgently needed to improve this situation. In this study, three gene expression profiling datasets (GSE29819, GSE21610, GSE17800) and one single-cell RNA sequencing dataset (GSE95140) were obtained from the Gene Expression Omnibus (GEO) database. GSE29819 and GSE21610 were combined into the training group, while GSE17800 was the test group. We used the weighted gene co-expression network analysis (WGCNA) and identified fifteen driver genes highly associated with DCM with HF in the module. We performed the least absolute shrinkage and selection operator (LASSO) on the driver genes and then constructed five machine learning classifiers (random forest, gradient boosting machine, neural network, eXtreme gradient boosting, and support vector machine). Random forest was the best-performing classifier established on five Lasso-selected genes, which was utilized to select out NPPA, OMD, and PRELP for diagnosing DCM with HF. Moreover, we observed the up-regulation mRNA levels and robust diagnostic accuracies of NPPA, OMD, and PRELP in the training group and test group. Single-cell RNA-seq analysis further demonstrated their stable up-regulation expression patterns in various cardiomyocytes of DCM patients. Besides, through gene set enrichment analysis (GSEA), we found TGF-β signaling pathway, correlated with NPPA, OMD, and PRELP, was the underlying mechanism of DCM with HF. Overall, our study revealed NPPA, OMD, and PRELP serving as diagnostic biomarkers for DCM with HF, deepening the understanding of its pathogenesis.
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Affiliation(s)
- Yihao Zhu
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China,Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China
| | - Xiaojing Yang
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China,Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China
| | - Yao Zu
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China,Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China,Marine Biomedical Science and Technology Innovation Platform of Lin-gang Special Area, Shanghai, China,*Correspondence: Yao Zu,
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5
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Du Y, Taylor CG, Aukema HM, Zahradka P. Role of oxylipins generated from dietary PUFAs in the modulation of endothelial cell function. Prostaglandins Leukot Essent Fatty Acids 2020; 160:102160. [PMID: 32717531 DOI: 10.1016/j.plefa.2020.102160] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/17/2020] [Accepted: 07/17/2020] [Indexed: 12/13/2022]
Abstract
Oxylipins, which are circulating bioactive lipids generated from polyunsaturated fatty acids (PUFAs) by cyclooxygenase, lipooxygenase and cytochrome P450 enzymes, have diverse effects on endothelial cells. Although studies of the effects of oxylipins on endothelial cell function are accumulating, a review that provides a comprehensive compilation of current knowledge and recent advances in the context of vascular homeostasis is lacking. This is the first compilation of the various in vitro, ex vivo and in vivo reports to examine the effects and potential mechanisms of action of oxylipins on endothelial cells. The aggregate data indicate docosahexaenoic acid-derived oxylipins consistently show beneficial effects related to key endothelial cell functions, whereas oxylipins derived from other PUFAs exhibit both positive and negative effects. Furthermore, information is lacking for certain oxylipin classes, such as those derived from α-linolenic acid, which suggests additional studies are required to achieve a full understanding of how oxylipins affect endothelial cells.
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Affiliation(s)
- Youjia Du
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada; Department of Physiology and Pathophysiology, University of Manitoba, MB R3E 0J9, Canada
| | - Carla G Taylor
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada; Department of Physiology and Pathophysiology, University of Manitoba, MB R3E 0J9, Canada; Department of Food and Human Nutritional Sciences, University of Manitoba, MB R3T 2N2, Canada
| | - Harold M Aukema
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada; Department of Food and Human Nutritional Sciences, University of Manitoba, MB R3T 2N2, Canada
| | - Peter Zahradka
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada; Department of Physiology and Pathophysiology, University of Manitoba, MB R3E 0J9, Canada; Department of Food and Human Nutritional Sciences, University of Manitoba, MB R3T 2N2, Canada.
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6
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Zhang J, Xue L, Nie A, Yang Q, Peng X, Chen Z, Yang L, Xie Y, Yuan A, Xu J. Spatiotemporal heterogeneity of PPARγ expression in porcine uteroplacenta for regulating of placental angiogenesis through VEGF-mediated signalling. Reprod Domest Anim 2020; 55:1479-1489. [PMID: 32762098 DOI: 10.1111/rda.13797] [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: 05/16/2020] [Revised: 06/24/2020] [Accepted: 08/01/2020] [Indexed: 11/26/2022]
Abstract
Non-infectious prenatal mortality severely affects the porcine industry, with pathological placentation as a likely key reason. Previous studies have demonstrated that peroxisome proliferator-activated receptor gamma (PPARγ) deficiency causes defects in the uteroplacental vasculature and induces embryonic losses in mice. However, its role in porcine placental angiogenesis remains unclear. In the present study, PPARγ expression was investigated in porcine uteroplacental tissues at gestational day (GD) 25, GD40 and GD70 via quantitative polymerase chain reaction (qPCR), Western blot and immunohistochemistry (IHC). Moreover, the roles of PPARγ in porcine placental angiogenesis were investigated using a cell model of porcine umbilical vein endothelial cells (PUVECs) to conduct proliferation, migration and tube formation assays in vitro and a mouse xenograft model to assess capillary formation in vivo. The results showed that PPARγ was mainly located in the glandular epithelium, trophoblast, amniotic chorion epithelium and vascular endothelium, as indicated by the higher expression levels at GD25 and GD40 than at GD70 in endometrium and by higher expression levels at GD40 and GD70 than at GD25 in placenta. Moreover, PPARγ expression was significantly downregulated in placenta with dead foetus. In PUVECs, knocking out PPARγ significantly inhibited proliferation, migration and tube formation in vitro and inhibited capillary formation in mouse xenografts in vivo by blocking S-phase, promoting apoptosis and downregulating the angiogenic factors of VEGF and its receptors. Overall, the spatiotemporal heterogeneity of PPARγ expression in porcine uteroplacental tissue suggests its vital role in endometrial remodelling and placental angiogenesis, and PPARγ regulates placental angiogenesis through VEGF-mediated signalling.
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Affiliation(s)
- Juzuo Zhang
- College of Biological and Food Engineering, 'Double First-Class' Applied Characteristic Discipline of Bioengineering in Hunan High Educational Institution, Huaihua University, Huaihua, China.,Department of Clinic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, China
| | - Liqun Xue
- Department of Clinic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, China
| | - Ang Nie
- Department of Clinic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, China.,Huaihua Municipal Center of Animal Husbandry and Aquatic Products Bureau, Huaihua, China
| | - Qing Yang
- Department of Clinic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, China
| | - Xuan Peng
- Department of Clinic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, China
| | - Zhilong Chen
- Department of Clinic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, China
| | - Lisha Yang
- Department of Clinic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, China
| | - Yang Xie
- Department of Clinic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, China
| | - Anwen Yuan
- Department of Clinic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, China
| | - Junfei Xu
- College of Biological and Food Engineering, 'Double First-Class' Applied Characteristic Discipline of Bioengineering in Hunan High Educational Institution, Huaihua University, Huaihua, China
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Yang MH, Chang KJ, Zheng JC, Huang H, Sun GY, Zhao XW, Li B, Xiu QY. Anti-angiogenic effect of arsenic trioxide in lung cancer via inhibition of endothelial cell migration, proliferation and tube formation. Oncol Lett 2017; 14:3103-3109. [PMID: 28928847 DOI: 10.3892/ol.2017.6518] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 03/10/2017] [Indexed: 12/20/2022] Open
Abstract
Arsenic trioxide (As2O3) exhibits a remarkable effect on leukemia treatment; however, its effect on solid tumors remains poorly explored. The present study demonstrated the inhibitory effect of As2O3 on lung cancer and explored its possible mechanism. It was observed that As2O3 significantly inhibited the growth of lung cancer xenografts and tumor angiogenesis in vivo. The inhibitory effect of As2O3 on cell proliferation in vitro was more remarkable in vascular endothelial cells than in lung cancer cells. It was also observed that As2O3 inhibited the migration of vascular endothelial cells and disrupted vascular tube formation on Matrigel assays. In addition, a series of key signaling factors involved in multiple stages of angiogenesis, including matrix metalloproteinase (MMP)-2, MMP-9, platelet-derived growth factor (PDGF)-BB/PDGF receptor-β, vascular endothelial growth factor (VEGF)-A/VEGF receptor-2, basic fibroblast growth factor (FGF)/FGF receptor-1 and delta like canonical Notch ligand 4/Notch-1, were regulated by As2O3. These findings suggested that anti-angiogenesis may be an underlying mechanism of As2O3 anticancer activity in lung cancer.
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Affiliation(s)
- Meng-Hang Yang
- Department of Respiratory Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China
| | - Ke-Jie Chang
- Department of Respiratory Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China
| | - Jin-Cheng Zheng
- Department of Respiratory Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China
| | - Hai Huang
- Department of Respiratory Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China
| | - Guang-Yuan Sun
- Department of Thoracic Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China
| | - Xue-Wei Zhao
- Department of Thoracic Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China
| | - Bing Li
- Department of Respiratory Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China
| | - Qing-Yu Xiu
- Department of Respiratory Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China
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Eo S, Kwon C, Lee H, Cho S, Kim J, Baek G, Yeo J, Lim C. Quantification of the effect of Lipo-PGE1 on angiogenesis. J Plast Reconstr Aesthet Surg 2014; 68:104-12. [PMID: 25448364 DOI: 10.1016/j.bjps.2014.09.035] [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: 03/28/2014] [Revised: 07/07/2014] [Accepted: 09/15/2014] [Indexed: 10/24/2022]
Abstract
Fifteen rabbits were used to assess the effect of Lipo-PGE1 on neovascularization. Merocel(®) and Alloderm(®) of the same size were implanted separately under the back skin to act as matrices for vessel growth. Lipo-PGE1 was injected intravenously for 2 weeks in an experimental group of eight rabbits, and they were compared with a control group of seven untreated animals. Blood flow was measured using the (99m)TcO4(-) clearance technique. The mean blood clearance halftime (T1/2) and washout radioactivity were measured. Newly formed vessels were counted by CD31. The mean clearance halftime was 4005 ± 2161.3 and 13840 ± 4644.6 s in the experimental and control group, respectively, in the 1 × 2 × 1.5-cm-sized implants (p = 0.0125), and 1560 ± 1174.7 and 3405 ± 807.03 s, respectively, in the 2 × 2 × 1.5-cm-sized implants (p = 0.0413). Histological examinations revealed that the mean numbers of newly formed vessels in the experimental and control groups were 11 ± 1.58 and 7.8 ± 1.71, respectively, in the 1 × 2 × 1.5-cm-sized implants (p = 0.0501), and 20.19 ± 12.47 and 12.33 ± 3.25, respectively, in the 2 × 2 × 1.5-cm-sized implants (p = 0.02679). Lipo-PGE1 was found to be effective in promoting angiogenesis in a rabbit matrix model.
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Affiliation(s)
- SuRak Eo
- Department of Plastic and Reconstructive Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea.
| | - Chan Kwon
- Department of Plastic and Reconstructive Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - HyunJic Lee
- Department of Plastic and Reconstructive Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - SangHun Cho
- Department of Plastic and Reconstructive Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - JinYoung Kim
- Department of Orthopaedic Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - GooHyun Baek
- Department of Orthopaedic Surgery, Seoul National University Hospital, Seoul, South Korea
| | - JeongSeok Yeo
- Department of Nuclear Medicine, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - ChiYeon Lim
- Department of Clinical Trial Test, DongGuk University Graduate School of Medicine, Seoul, South Korea
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9
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Human placenta mesenchymal stem cells expressing exogenous kringle1-5 protein by fiber-modified adenovirus suppress angiogenesis. Cancer Gene Ther 2014; 21:200-8. [DOI: 10.1038/cgt.2014.19] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Revised: 04/09/2014] [Accepted: 04/14/2014] [Indexed: 11/08/2022]
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10
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Chen BX, Cao HL, Guo RH, Jin SQ, Bai B. Prostaglandin E1 for prevention and treatment of liver fibrosis progression after hepatic arterial embolization in a rabbit model. Shijie Huaren Xiaohua Zazhi 2014; 22:164-170. [DOI: 10.11569/wcjd.v22.i2.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate whether prostaglandin E1 (PGE1) has preventive and therapeutic effects on liver fibrosis progression after transcatheter hepatic arterial embolization in a rabbit model.
METHODS: Thirty rabbits were used to induce liver fibrosis with carbon tetrachloride (CCl4), and transcatheter right hepatic arterial embolization was performed. The rabbits were divided into three groups randomly (groups A, B and C) and infused with 1 mL of 0.9% saline, 1 mL of lipiodol and 1 ml of lipiodol plus 0.2 mL of PGE1 via the right hepatic artery, respectively. Serum levels of hyaluronic acid (HA), laminin (LN), procollagen Ⅲ (PCⅢ), and collagen Ⅳ (Ⅳ-C) on postoperative days 2, 4, 6 and 8 were measured, and the animals were killed on postoperative day 8 to detect pathological changes in liver tissues.
RESULTS: Liver fibrosis was successfully induced in rabbits, and addition of PGE1 in hepatic arterial embolization significantly reduced serum levels of HA, LN, PCⅢ and Ⅳ-C, and alleviated hepatic histological abnormalities.
CONCLUSION: PGE1 can prevent liver fibrosis progression in rabbits after transcatheter hepatic arterial embolization with lipiodol.
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11
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Liao X, Zhou X, Mak NK, Leung KN. Tryptanthrin inhibits angiogenesis by targeting the VEGFR2-mediated ERK1/2 signalling pathway. PLoS One 2013; 8:e82294. [PMID: 24358167 PMCID: PMC3864955 DOI: 10.1371/journal.pone.0082294] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 10/22/2013] [Indexed: 11/18/2022] Open
Abstract
Angiogenesis is a key step for tumour growth and metastasis, and anti-angiogenesis has been proposed as an important strategy for cancer therapy. Tryptanthrin is a weakly basic alkaloid isolated from the dried roots of medicinal indigo plants and has been shown to possess anti-tumour activities on various cancer cell types. This study aims to investigate the in vitro and in vivo anti-angiogenic activities of tryptanthrin and to unravel its underlying molecular action mechanisms. Our results show that tryptanthrin inhibited the in vitro proliferation, migration, and tube formation of the human microvascular endothelial cells (HMEC-1) in a concentration-dependent manner and significantly suppressed angiogenesis in Matrigel plugs in mice. Mechanistic studies indicated that tryptanthrin reduced the expression of several pro-angiogenic factors (Ang-1, PDGFB and MMP2). Tryptanthrin was also found to suppress the VEGFR2-mediated ERK1/2 signalling pathway in HMEC-1 cells and molecular docking simulation indicated that tryptanthrin could bound to the ATP-binding site of VEGFR2. Collectively, the present study demonstrated that tryptanthrin exhibited both in vitro and in vivo anti-angiogenic activities by targeting the VEGFR2-mediated ERK1/2 signalling pathway and might have therapeutic potential for the treatment of angiogenesis-related diseases.
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Affiliation(s)
- Xuemei Liao
- Biochemistry Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, HKSAR, China
| | - Xuelin Zhou
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, HKSAR, China
| | - Nai-ki Mak
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, HKSAR, China
| | - Kwok-nam Leung
- Biochemistry Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, HKSAR, China
- * E-mail:
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12
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Suzuki K, Nishi K, Takabuchi S, Kai S, Matsuyama T, Kurosawa S, Adachi T, Maruyama T, Fukuda K, Hirota K. Differential roles of prostaglandin E-type receptors in activation of hypoxia-inducible factor 1 by prostaglandin E1 in vascular-derived cells under non-hypoxic conditions. PeerJ 2013; 1:e220. [PMID: 24349900 PMCID: PMC3845874 DOI: 10.7717/peerj.220] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 11/11/2013] [Indexed: 11/24/2022] Open
Abstract
Prostaglandin E1 (PGE1), known pharmaceutically as alprostadil, has vasodilatory properties and is used widely in various clinical settings. In addition to acute vasodilatory properties, PGE1 may exert beneficial effects by altering protein expression of vascular cells. PGE1 is reported to be a potent stimulator of angiogenesis via upregulation of VEGF expression, which is under the control of the transcription factor hypoxia-inducible factor 1 (HIF-1). However, the molecular mechanisms behind the phenomenon are largely unknown. In the present study, we investigated the mechanism by which PGE1 induces HIF-1 activation and VEGF gene expression in human aortic smooth muscle cells (HASMCs) and human umbilical vein endothelial cells (HUVECs), both vascular-derived cells. HUVECs and HASMCs were treated with PGE1 at clinically relevant concentrations under 20% O2 conditions and HIF-1 protein expression was investigated. Expression of HIF- 1α protein and the HIF-1-downstream genes were low under 20% O2 conditions and increased in response to PGE1 treatment in both HUVECs and HASMCs in a dose- and time-dependent manner under 20% O2 conditions as comparable to exposure to 1% O2 conditions. Studies using EP-receptor-specific agonists and antagonists revealed that EP1 and EP3 are critical to PGE1-induced HIF-1 activation. In vitro vascular permeability assays using HUVECs indicated that PGE1 increased vascular permeability in HUVECs. Thus, we demonstrate that PGE1 induces HIF- 1α protein expression and HIF-1 activation under non-hypoxic conditions and also provide evidence that the activity of multiple signal transduction pathways downstream of EP1 and EP3 receptors is required for HIF-1 activation.
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Affiliation(s)
- Kengo Suzuki
- Department of Anesthesia, Kyoto University Hospital , Kyoto , Japan ; Department of Anesthesiology, Tohoku University Hospital , Sendai , Japan
| | - Kenichiro Nishi
- Department of Anesthesiology, Kansai Medical University , Hirakata, Osaka , Japan
| | - Satoshi Takabuchi
- Department of Anesthesiology, Kansai Medical University , Hirakata, Osaka , Japan
| | - Shinichi Kai
- Department of Anesthesia, Kyoto University Hospital , Kyoto , Japan
| | | | - Shin Kurosawa
- Department of Anesthesiology, Tohoku University Hospital , Sendai , Japan
| | - Takehiko Adachi
- Department of Anesthesia, Tazuke Kofukai Medical Research Institute Kitano Hospital , Osaka , Japan
| | - Takayuki Maruyama
- Minase Research Institutes, Research Headquarters, Ono Pharmaceutical , Osaka , Japan
| | - Kazuhiko Fukuda
- Department of Anesthesia, Kyoto University Hospital , Kyoto , Japan
| | - Kiichi Hirota
- Department of Anesthesiology, Kansai Medical University , Hirakata, Osaka , Japan
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13
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Camacho M, Dilmé J, Solà-Villà D, Rodríguez C, Bellmunt S, Siguero L, Alcolea S, Romero JM, Escudero JR, Martínez-González J, Vila L. Microvascular COX-2/mPGES-1/EP-4 axis in human abdominal aortic aneurysm. J Lipid Res 2013; 54:3506-15. [PMID: 24133193 DOI: 10.1194/jlr.m042481] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
We investigated the prostaglandin (PG)E2 pathway in human abdominal aortic aneurysm (AAA) and its relationship with hypervascularization. We analyzed samples from patients undergoing AAA repair in comparison with those from healthy multiorgan donors. Patients were stratified according to maximum aortic diameter: low diameter (LD) (<55 mm), moderate diameter (MD) (55-69.9 mm), and high diameter (HD) (≥70 mm). AAA was characterized by abundant microvessels in the media and adventitia with perivascular infiltration of CD45-positive cells. Like endothelial cell markers, cyclooxygenase (COX)-2 and the microsomal isoform of prostaglandin E synthase (mPGES-1) transcripts were increased in AAA (4.4- and 1.4-fold, respectively). Both enzymes were localized in vascular cells and leukocytes, with maximal expression in the LD group, whereas leukocyte markers display a maximum in the MD group, suggesting that the upregulation of COX-2/mPGES-1 precedes maximal leukocyte infiltration. Plasma and in vitro tissue secreted levels of PGE2 metabolites were higher in AAA than in controls (plasma-controls, 19.9 ± 2.2; plasma-AAA, 38.8 ± 5.5 pg/ml; secretion-normal aorta, 16.5 ± 6.4; secretion-AAA, 72.9 ± 6.4 pg/mg; mean ± SEM). E-prostanoid receptor (EP)-2 and EP-4 were overexpressed in AAA, EP-4 being the only EP substantially expressed and colocalized with mPGES-1 in the microvasculature. Additionally, EP-4 mediated PGE2-induced angiogenesis in vitro. We provide new data concerning mPGES-1 expression in human AAA. Our findings suggest the potential relevance of the COX-2/mPGES-1/EP-4 axis in the AAA-associated hypervascularization.
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Affiliation(s)
- Mercedes Camacho
- Angiology, Vascular Biology, and Inflammation Laboratory, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
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14
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Harland DR, Lorenz LD, Fay K, Dunn BE, Gruenloh SK, Narayanan J, Jacobs ER, Medhora M. Acute effects of prostaglandin E1 and E2 on vascular reactivity and blood flow in situ in the chick chorioallantoic membrane. Prostaglandins Leukot Essent Fatty Acids 2012; 87:79-89. [PMID: 22858445 PMCID: PMC3839254 DOI: 10.1016/j.plefa.2012.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Revised: 06/04/2012] [Accepted: 07/07/2012] [Indexed: 10/28/2022]
Abstract
The chick chorioallantoic membrane (CAM) subserves gas exchange in the developing embryo and shell-less culture affords a unique opportunity for direct observations over time of individual blood vessels to pharmacologic interventions. We tested a number of lipids including prostaglandins PGE(1&2) for vascular effects and signaling in the CAM. Application of PGE(1&2) induced a decrease in the diameter of large blood vessels and a concentration-dependent, localized, reversible loss of blood flow through small vessels. The loss of flow was also mimicked by misoprostol, an agonist for 3 of 4 known PGE receptors, EP(2-4), and by U46619, a thromboxane mimetic. Selective receptor antagonists for EP(3) and thromboxane each partially blocked the response. This is a first report of the effects of prostaglandins on vasoreactivity in the CAM. Our model allows the unique ability to examine simultaneous responses of large and small vessels in real time and in vivo.
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MESH Headings
- 15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid/pharmacology
- Alprostadil/antagonists & inhibitors
- Alprostadil/pharmacology
- Animals
- Biphenyl Compounds/pharmacology
- Blood Vessels/drug effects
- Blood Vessels/physiology
- Bridged Bicyclo Compounds, Heterocyclic
- Chick Embryo
- Chorioallantoic Membrane/blood supply
- Chorioallantoic Membrane/drug effects
- Chorioallantoic Membrane/metabolism
- Dibenz(b,f)(1,4)oxazepine-10(11H)-carboxylic acid, 8-chloro-, 2-acetylhydrazide/pharmacology
- Dinoprostone/antagonists & inhibitors
- Dinoprostone/pharmacology
- Dose-Response Relationship, Drug
- Estradiol/pharmacology
- Estrogens/pharmacology
- Fatty Acids, Unsaturated
- Hydrazines/pharmacology
- Microsomes/drug effects
- Microsomes/metabolism
- Misoprostol/pharmacology
- Prostaglandin Antagonists/pharmacology
- Rats
- Receptors, Prostaglandin/agonists
- Receptors, Prostaglandin/antagonists & inhibitors
- Receptors, Prostaglandin/metabolism
- Receptors, Thromboxane/agonists
- Receptors, Thromboxane/antagonists & inhibitors
- Receptors, Thromboxane/metabolism
- Vasoconstriction/drug effects
- Vasoconstrictor Agents/antagonists & inhibitors
- Vasoconstrictor Agents/pharmacology
- Xanthones/pharmacology
- alpha-Linolenic Acid/pharmacology
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Affiliation(s)
- D R Harland
- Division of Pulmonary and Critical Care, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226
| | - L D Lorenz
- Division of Pulmonary and Critical Care, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226
| | - K Fay
- Division of Pulmonary and Critical Care, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226
| | - B E Dunn
- Division of Pulmonary and Critical Care, Department of Pathology, Medical College of Wisconsin, Milwaukee, WI 53226
- Clement J. Zablocki VA Medical Center, Milwaukee WI 53295
| | - S K Gruenloh
- Division of Pulmonary and Critical Care, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226
| | - J Narayanan
- Division of Pulmonary and Critical Care, Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI 53226
| | - E R Jacobs
- Division of Pulmonary and Critical Care, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226
- Clement J. Zablocki VA Medical Center, Milwaukee WI 53295
| | - M Medhora
- Division of Pulmonary and Critical Care, Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI 53226
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15
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Prostaglandins in cancer cell adhesion, migration, and invasion. Int J Cell Biol 2012; 2012:723419. [PMID: 22505934 PMCID: PMC3299390 DOI: 10.1155/2012/723419] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Accepted: 10/08/2011] [Indexed: 12/21/2022] Open
Abstract
Prostaglandins exert a profound influence over the adhesive, migratory, and invasive behavior of cells during the development and progression of cancer. Cyclooxygenase-2 (COX-2) and microsomal prostaglandin E2 synthase-1 (mPGES-1) are upregulated in inflammation and cancer. This results in the production of prostaglandin E2 (PGE2), which binds to and activates G-protein-coupled prostaglandin E1–4 receptors (EP1–4). Selectively targeting the COX-2/mPGES-1/PGE2/EP1–4 axis of the prostaglandin pathway can reduce the adhesion, migration, invasion, and angiogenesis. Once stimulated by prostaglandins, cadherin adhesive connections between epithelial or endothelial cells are lost. This enables cells to invade through the underlying basement membrane and extracellular matrix (ECM). Interactions with the ECM are mediated by cell surface integrins by “outside-in signaling” through Src and focal adhesion kinase (FAK) and/or “inside-out signaling” through talins and kindlins. Combining the use of COX-2/mPGES-1/PGE2/EP1–4 axis-targeted molecules with those targeting cell surface adhesion receptors or their downstream signaling molecules may enhance cancer therapy.
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16
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Ma X, Sun LT, Niu FF, Zhang XH, Liu BR. Comparison of the effects of femoral versus portal vein administration of vasodilators on portal hemodynamics in cirrhotic rats with portal hypertension. Shijie Huaren Xiaohua Zazhi 2010; 18:3508-3514. [DOI: 10.11569/wcjd.v18.i33.3508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To compare the effects of femoral versus portal vein administration of vasodilators on portal hemodynamics in rats with liver cirrhosis.
METHODS: Forty-two male Wistar rats with liver cirrhosis induced with carbon tetrachloride and alcohol were divided randomly and equally into six groups, which underwent femoral or portal vein injection of nitroglycerol (NG), prostaglandin E1(PGE1) or isotonic sodium chloride (NaCl), respectively. Hemodynamic parameters, including portal vein diameter (PVD), portal flow rate (PFR) and portal vein inflow (PVF), were measured after drug injection.
RESULTS: There were no significant differences in PVD, PVF and PFR between rats undergoing femoral and portal vein injection of NaCl (P = 0.1742, 0.2372 and 0.6566). PVD was increased significantly in cirrhotic rats that were given vasodilator agents, however, there were no significant differences in PVD changes between rats undergoing portal and femoral vein administration (P = 0.0516 and 0.1225). PVF was less increased in rats undergoing portal vein administration of NG and PGE1than in those undergoing femoral vein administration of NG and PGE1 (P < 0.0001). Comparing with pre-injection, PFR increased in rats undergoing femoral vein administration of NG and PGE1, but decreased in rats undergoing portal vein administration NG and PGE1 after dosed 10, 20 min [NGf: 4.98 mm/(s•100 g) ± 0.62 mm/(s•100 g), 4.31 mm/(s•100 g) ± 0.46 mm/(s•100 g) vs 3.62 mm/(s•100 g) ± 0.38 mm/(s•100 g); PGE1f: 3.96 mm/(s•100 g) ± 0.56 mm/(s•100 g), 4.18 mm/(s•100 g) ± 0.50 mm/(s•100 g) vs 3.63 mm/(s•100 g) ± 0.47 mm/(s•100 g) P < 0.0001; NGp: 2.93 mm/(s•100 g) ± 0.22 mm/(s•100 g), 3.13 mm/(s•100 g) ± 0.21 mm/(s•100 g) vs 3.70 mm/(s•100 g) ± 0.48 mm/(s•100 g); PGE1p: 3.65 mm mm/(s•100 g) ± 0.22 mm/(s•100 g), 3.36 mm/(s•100 g) ± 0.21 mm/(s•100 g) vs 3.84 mm/(s•100 g) ± 0.19 mm/(s•100 g), P< 0.001].
CONCLUSION: NG and PGE1 are able to increase portal vein flow in cirrhotic rats with portal hypertension. Administration of vasodilators via the portal vein is not superior to that via the femoral vein in increasing PVF in cirrhotic rats with portal hypertension.
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17
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Esaki J, Sakaguchi H, Marui A, Bir SC, Arai Y, Huang Y, Tsubota H, Kanaji T, Ikeda T, Sakata R. Local Sustained Release of Prostaglandin E1 Induces Neovascularization in Murine Hindlimb Ischemia. Circ J 2009; 73:1330-6. [DOI: 10.1253/circj.cj-08-0999] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiro Esaki
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Hisashi Sakaguchi
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Akira Marui
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Shyamal Chandra Bir
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Yoshio Arai
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Yuhong Huang
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Hideki Tsubota
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | | | - Tadashi Ikeda
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Ryuzo Sakata
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
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18
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Nishiyama K, Takaji K, Uchijima Y, Kurihara Y, Asano T, Yoshimura M, Ogawa H, Kurihara H. Protein kinase A-regulated nucleocytoplasmic shuttling of Id1 during angiogenesis. J Biol Chem 2007; 282:17200-9. [PMID: 17412691 DOI: 10.1074/jbc.m611609200] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Id1, an inhibitory partner of basic-helix-loop-helix transcriptional factors, has recently been recognized as a potent contributor to angiogenesis. However, the molecular mechanism underlying its role in angiogenesis remains essentially unknown. Herein we demonstrate the subcellular localization of Id1 to be altered depending on the cellular context of vascular endothelial cells. Id1 was localized in the nuclei of human umbilical vein endothelial cells (HUVECs) cultured on uncoated plates, whereas it was translocated to the cytoplasm in HUVECs on Matrigel along with the formation of capillary-like structures. Treatment with the nuclear export inhibitor leptomycin B and mutagenesis analysis using green fluorescent protein-fused Id1 revealed CRM1/exportin-dependent nuclear export of Id1 in HUVECs on Matrigel. This nuclear export of Id1 was inhibited by protein kinase A (PKA) activation by dibutyryl cyclic AMP and forskolin but was promoted by PKA inactivation by H-89 and MDL-12,330A. Mutagenesis analysis of Id1 showed the phosphorylation of Ser-5 to possibly mediate the effect of PKA. These results suggest the function of Id1 as a transcriptional factor to be controlled by nucleocytoplasmic shuttling during angiogenesis and that PKA might be involved in this process. This may serve as a novel mechanism regulating angiogenesis and as a possible target for therapeutic vascular regeneration.
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Affiliation(s)
- Koichi Nishiyama
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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19
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Jain S, Chakraborty G, Kundu GC. The crucial role of cyclooxygenase-2 in osteopontin-induced protein kinase C alpha/c-Src/IkappaB kinase alpha/beta-dependent prostate tumor progression and angiogenesis. Cancer Res 2006; 66:6638-48. [PMID: 16818637 DOI: 10.1158/0008-5472.can-06-0661] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The regulation of tumor progression towards its malignancy needs the interplay among several cytokines, growth factors, and enzymes, which are controlled in the tumor microenvironment. Here, we report that osteopontin, a small integrin-binding ligand N-linked glycoprotein family of calcified extracellular matrix-associated protein, regulates prostate tumor growth by regulating the expression of cyclooxygenase-2 (COX-2). We have shown that osteopontin stimulates the activation of protein kinase C alpha/nuclear factor-inducing kinase/nuclear factor-kappaB-dependent signaling cascades that induces COX-2 expression, which in turn regulates the prostaglandin E(2) production, matrix metalloproteinase-2 activation, and tumor progression and angiogenesis. We have revealed that suppression of osteopontin-induced COX-2 expression by the nonsteroidal anti-inflammatory drug celecoxib or blocking the EP2 receptor by its blocking antibody resulted in significant inhibition of cell motility and tumor growth and angiogenesis. The data also showed that osteopontin-induced mice PC-3 xenograft exhibits higher tumor load, increased tumor cell infiltration, nuclear polymorphism, and neovascularization. Interestingly, use of celecoxib or anti-EP2 blocking antibody drastically suppressed osteopontin-induced tumor growth that further indicated that suppression of COX-2 or its metabolites could significantly inhibit osteopontin-induced tumor growth. Human clinical prostate cancer specimen analysis also supports our in vitro and animal model studies. Our findings suggest that blockage of osteopontin and/or COX-2 is a promising therapeutic approach for the inhibition of prostate tumor progression and angiogenesis.
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Affiliation(s)
- Shalini Jain
- National Center for Cell Science, Pune 411-007, India
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20
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Pilatz A, Schultheiss D, Gabouev AI, Schlote N, Mertsching H, Jonas U, Stief CG. In vitro viability of human cavernosal endothelial and fibroblastic cells after exposure to papaverine/phentolamine and prostaglandin E1. BJU Int 2005; 95:1351-7. [PMID: 15892829 DOI: 10.1111/j.1464-410x.2005.05499.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To investigate the influence of commercially available vasoactive drugs on human cavernosal endothelial and fibroblastic cells in vitro, as although corporal fibrosis is a well known side-effect of intracavernosal injection therapy for erectile dysfunction, the possible detrimental effect of these agents on the endothelium lining the cavernosal vascular spaces is uncertain. MATERIALS AND METHODS Cultured primary endothelial (13) and fibroblastic cells (12), obtained from potent patients undergoing penile surgery, were exposed to different physiological dilutions of prostaglandin E1 (PGE1), papaverine/phentolamine or the respective triple-mix of these agents for 30 min. Viable cells were counted and cell metabolic activity measured in these cultures 48 h after drug exposure. RESULTS There was a significant dose-dependent decrease in the viable cell count after exposure to papaverine-containing formulations, probably because of the low pH of this substance. This cytotoxic effect was more pronounced in endothelial than in fibroblastic cells, and was not apparent in the PGE1 groups. The relative increase in cell metabolic activity in cultures affected by a moderate cytotoxic effect indicated a regenerative process. CONCLUSION These comparative results in endothelial and fibroblastic cell cultures suggest that the endothelium rather than the interstitium of the corpus cavernosum is more sensitive to side-effects produced by intracavernosal injection therapy with papaverine. Thus, unfavourable consequences on the function of the endothelial layer might be as important as the risk of interstitial fibrosis. As these effects were not detected for PGE1 this drug should be preferred to papaverine in clinical practice.
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Affiliation(s)
- Adrian Pilatz
- Department of Urology and Paediatric Urology, Hannover Medical School, Hannover, Germany
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21
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del Valle-Pérez B, Martínez-Estrada OM, Vilaró S, Ventura F, Viñals F. cAMP inhibits TGFbeta1-induced in vitro angiogenesis. FEBS Lett 2004; 569:105-11. [PMID: 15225617 DOI: 10.1016/j.febslet.2004.05.058] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2004] [Accepted: 05/05/2004] [Indexed: 11/15/2022]
Abstract
Transforming growth factor-beta (TGFbeta1) is a proangiogenic factor both, in vitro and in vivo, that is mainly involved in the later phases of angiogenesis. In an attempt to identify genes that participate in this effect, we found that TGFbeta1 down-regulates expression of adenylate cyclase VI. In addition, cAMP analogs (8-Bromo-cAMP) and forskolin (an adenylate cyclase activator) also reduced TGFbeta1-induced in vitro angiogenesis in mouse endothelial cell lines and in primary cultures of human umbilical vein endothelial cells on collagen gels. Induction of Ets-1 and plasminogen activator inhibitor-1 (PAI-1) by TGFbeta1 was blocked by these cAMP agonists and activators, in the absence of effects on endothelial cell viability. Moreover, the signal transduction pathways stimulated by TGFbeta1 were unaffected. Thus, Smad2 was normally phosphorylated and translocated to the nucleus in the presence of forskolin. In contrast, transfection studies using the PAI-1-promoter indicated that these cAMP analogues inhibit transcriptional stimulation by TGFbeta1. Electrophoretic mobility shift assay showed that Smad2/3 were bound normally to a TGFbeta1-response region in the presence of the cAMP analogs. In all, these data suggest that the cAMP pathway inhibits the transcriptional activity of Smads, that could be responsible for the block of the TGFbeta1-induced in vitro angiogenesis caused by this second messenger.
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Affiliation(s)
- Beatriz del Valle-Pérez
- Unitat de Bioquímica i Biologia Molecular, Departament de Ciències Fiològiques II, Campus de Bellvitge, Universitat de Barcelona, C/ Feixa Llarga s/n, E-08907 L'Hospitalet de Llobregat, Spain
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