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Hijazi MA, Gessner A, El-Najjar N. Repurposing of Chronically Used Drugs in Cancer Therapy: A Chance to Grasp. Cancers (Basel) 2023; 15:3199. [PMID: 37370809 DOI: 10.3390/cancers15123199] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/06/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Despite the advancement in drug discovery for cancer therapy, drug repurposing remains an exceptional opportunistic strategy. This approach offers many advantages (faster, safer, and cheaper drugs) typically needed to overcome increased challenges, i.e., side effects, resistance, and costs associated with cancer therapy. However, not all drug classes suit a patient's condition or long-time use. For that, repurposing chronically used medications is more appealing. This review highlights the importance of repurposing anti-diabetic and anti-hypertensive drugs in the global fight against human malignancies. Extensive searches of all available evidence (up to 30 March 2023) on the anti-cancer activities of anti-diabetic and anti-hypertensive agents are obtained from multiple resources (PubMed, Google Scholar, ClinicalTrials.gov, Drug Bank database, ReDo database, and the National Institutes of Health). Interestingly, more than 92 clinical trials are evaluating the anti-cancer activity of 14 anti-diabetic and anti-hypertensive drugs against more than 15 cancer types. Moreover, some of these agents have reached Phase IV evaluations, suggesting promising official release as anti-cancer medications. This comprehensive review provides current updates on different anti-diabetic and anti-hypertensive classes possessing anti-cancer activities with the available evidence about their mechanism(s) and stage of development and evaluation. Hence, it serves researchers and clinicians interested in anti-cancer drug discovery and cancer management.
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Affiliation(s)
- Mohamad Ali Hijazi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Beirut Arab University, Beirut P.O. Box 11-5020, Lebanon
| | - André Gessner
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Nahed El-Najjar
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
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Chang YL, Chou CH, Li YF, Huang LC, Kao Y, Hueng DY, Tsai CK. Antiproliferative and apoptotic effects of telmisartan in human glioma cells. Cancer Cell Int 2023; 23:111. [PMID: 37291545 DOI: 10.1186/s12935-023-02963-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023] Open
Abstract
Glioblastoma is the most common primary central nervous system tumor in adults. Angiotensin II receptor blockers (ARBs) are broadly applied to treat hypertension. Moreover, research has revealed that ARBs have the capacity to suppress the growth of several cancer types. In this study, we assessed the effects of three ARBs with the ability to cross the blood brain barrier (telmisartan, valsartan and fimasartan) on cell proliferation in three glioblastoma multiforme (GBM) cell lines. Telmisartan markedly suppressed the proliferation, migration, and invasion of these three GBM cell lines. Microarray data analysis revealed that telmisartan regulates DNA replication, mismatch repair, and the cell cycle pathway in GBM cells. Furthermore, telmisartan induced G0/G1 phase arrest and apoptosis. The bioinformatic analysis and western blotting results provide evidence that SOX9 is a downstream target of telmisartan. Telmisartan also suppressed tumor growth in vivo in an orthotopic transplant mouse model. Therefore, telmisartan is a potential treatment for human GBM.
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Affiliation(s)
- Yung-Lung Chang
- Department of Biochemistry, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Chung-Hsing Chou
- Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, No. 325, Sec. 2, Cheng-Gong Road, Taipei, 11490, Taiwan
| | - Yao-Feng Li
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Li-Chun Huang
- Department of Biochemistry, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Ying Kao
- Division of Neurosurgery, Department of Surgery, Taipei City Hospital Zhongxing Branch, Taipei, Taiwan
| | - Dueng-Yuan Hueng
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Chia-Kuang Tsai
- Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, No. 325, Sec. 2, Cheng-Gong Road, Taipei, 11490, Taiwan.
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Angiotensin Receptor Blocker Associated with a Decreased Risk of Lung Cancer: An Updated Meta-Analysis. J Pers Med 2023; 13:jpm13020243. [PMID: 36836477 PMCID: PMC9961472 DOI: 10.3390/jpm13020243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
INTRODUCTION There have been disputes in the association between angiotensin receptor blockers (ARB) and the incidence of lung cancer. Our meta-analysis reevaluated this problem from the perspectives of race, age, drug type, comparison objects and smoking. METHOD We used the following databases to carry out our literature search: Pubmed, Medline, Cochrane Library, and Ovid (From 1 January 2020 to 28 November 2021). The correlation between ARBs and the incidence rate of lung cancer was calculated by risk ratios (RRs). Confidence intervals were selected with 95% confidence intervals. RESULTS A total of 10 randomized controlled trials (RCTs), 18 retrospective studies and 3 case-control studies were found to satisfy the inclusion criteria. The use of ARB drugs reduced the incidence of lung cancer. The pooled results of 10 retrospective studies revealed a decreased lung cancer incidence in patients treated with ARBs, especially in patients using Valsartan. A significantly lower lung cancer incidence was found in the ARB drugs than in calcium channel blockers (CCBs) and angiotensin-converting enzyme inhibitors (ACEIs). Lung cancer occurrence was lower in Asian-based studies, especially in Mongolian-dominated and Caucasian-dominated patient populations. No significant decrease in lung cancer occurrence was found in RCTs or in patients receiving telmisartan, losartan, candesartan, irbesartan, or other placebo or in American and European-dominated patient populations. CONCLUSION Compared with ACEIs and CCBs, ARBs significantly reduce the risk of lung cancer, especially in Asian and Mongolian populations. Valsartan has the best effect in reducing the risk of lung cancer in ARB drugs.
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Araújo D, Ribeiro E, Amorim I, Vale N. Repurposed Drugs in Gastric Cancer. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010319. [PMID: 36615513 PMCID: PMC9822219 DOI: 10.3390/molecules28010319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 12/21/2022] [Accepted: 12/25/2022] [Indexed: 01/04/2023]
Abstract
Gastric cancer (GC) is one of the major causes of death worldwide, ranking as the fifth most incident cancer in 2020 and the fourth leading cause of cancer mortality. The majority of GC patients are in an advanced stage at the time of diagnosis, presenting a poor prognosis and outcome. Current GC treatment approaches involve endoscopic detection, gastrectomy and chemotherapy or chemoradiotherapy in an adjuvant or neoadjuvant setting. Drug development approaches demand extreme effort to identify molecular mechanisms of action of new drug candidates. Drug repurposing is based on the research of new therapeutic indications of drugs approved for other pathologies. In this review, we explore GC and the different drugs repurposed for this disease.
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Affiliation(s)
- Diana Araújo
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Institute for Research and Innovation in Health (i3S), Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Rua Júlio Amaral de Carvalho, 45, 4200-135 Porto, Portugal
| | - Eduarda Ribeiro
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Irina Amorim
- Institute of Biomedical Sciences Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Institute for Research and Innovation in Health (i3S), Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Rua Júlio Amaral de Carvalho, 45, 4200-135 Porto, Portugal
| | - Nuno Vale
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
- Department of Community Medicine, Health Information and Decision (MEDCIDS), Faculty of Medicine, University of Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- Correspondence: ; Tel.: +351-220426537
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Ballav S, Biswas B, Sahu VK, Ranjan A, Basu S. PPAR-γ Partial Agonists in Disease-Fate Decision with Special Reference to Cancer. Cells 2022; 11:3215. [PMID: 36291082 PMCID: PMC9601205 DOI: 10.3390/cells11203215] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/03/2022] [Accepted: 10/09/2022] [Indexed: 11/16/2023] Open
Abstract
Peroxisome proliferator-activated receptor-γ (PPAR-γ) has emerged as one of the most extensively studied transcription factors since its discovery in 1990, highlighting its importance in the etiology and treatment of numerous diseases involving various types of cancer, type 2 diabetes mellitus, autoimmune, dermatological and cardiovascular disorders. Ligands are regarded as the key determinant for the tissue-specific activation of PPAR-γ. However, the mechanism governing this process is merely a contradictory debate which is yet to be systematically researched. Either these receptors get weakly activated by endogenous or natural ligands or leads to a direct over-activation process by synthetic ligands, serving as complete full agonists. Therefore, fine-tuning on the action of PPAR-γ and more subtle modulation can be a rewarding approach which might open new avenues for the treatment of several diseases. In the recent era, researchers have sought to develop safer partial PPAR-γ agonists in order to dodge the toxicity induced by full agonists, akin to a balanced activation. With a particular reference to cancer, this review concentrates on the therapeutic role of partial agonists, especially in cancer treatment. Additionally, a timely examination of their efficacy on various other disease-fate decisions has been also discussed.
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Affiliation(s)
- Sangeeta Ballav
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
| | - Bini Biswas
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
| | - Vishal Kumar Sahu
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
| | - Amit Ranjan
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
| | - Soumya Basu
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune 411033, India
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Alzahrani SAS, Nazreen S, Elhenawy AA, Ahmad A, Alam MM. Benzimidazole‐1,3,4‐Oxadiazole Hybrids: Synthesis, Anticancer Evaluation, Docking and DFT Studies. ChemistrySelect 2022. [DOI: 10.1002/slct.202201559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Syed Nazreen
- Department of Chemistry Faculty of Science Al-Baha University Al-Baha Kingdom of Saudi Arabia
| | - Ahmed A. Elhenawy
- Department of Chemistry Faculty of Science Al-Baha University Al-Baha Kingdom of Saudi Arabia
- Chemistry Department Faculty of Science Al-Azhar University 11884 Nasr City Cairo Egypt
| | - Abrar Ahmad
- Department of Biochemistry Faculty of Science King Abdulaziz University Jeddah Kingdom of Saudi Arabia
| | - Mohammad Mahboob Alam
- Department of Chemistry Faculty of Science Al-Baha University Al-Baha Kingdom of Saudi Arabia
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Wagner N, Wagner KD. Peroxisome Proliferator-Activated Receptors and the Hallmarks of Cancer. Cells 2022; 11:cells11152432. [PMID: 35954274 PMCID: PMC9368267 DOI: 10.3390/cells11152432] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 12/11/2022] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) function as nuclear transcription factors upon the binding of physiological or pharmacological ligands and heterodimerization with retinoic X receptors. Physiological ligands include fatty acids and fatty-acid-derived compounds with low specificity for the different PPAR subtypes (alpha, beta/delta, and gamma). For each of the PPAR subtypes, specific pharmacological agonists and antagonists, as well as pan-agonists, are available. In agreement with their natural ligands, PPARs are mainly focused on as targets for the treatment of metabolic syndrome and its associated complications. Nevertheless, many publications are available that implicate PPARs in malignancies. In several instances, they are controversial for very similar models. Thus, to better predict the potential use of PPAR modulators for personalized medicine in therapies against malignancies, it seems necessary and timely to review the three PPARs in relation to the didactic concept of cancer hallmark capabilities. We previously described the functions of PPAR beta/delta with respect to the cancer hallmarks and reviewed the implications of all PPARs in angiogenesis. Thus, the current review updates our knowledge on PPAR beta and the hallmarks of cancer and extends the concept to PPAR alpha and PPAR gamma.
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Affiliation(s)
- Nicole Wagner
- Correspondence: (N.W.); (K.-D.W.); Tel.: +33-489-153-713 (K.-D.W.)
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Khan Y, Rehman W, Hussain R, Khan S, Malik A, Khan M, Liaqat A, Rasheed L, begum F, Fazil S, Khan I, Abdellatif MH. New biologically potent benzimidazole‐based‐triazole derivatives as acetylcholinesterase and butyrylcholinesterase inhibitors along with molecular docking study. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yousaf Khan
- Department of Chemistry COMSATS University Islamabad Islamabad Pakistan
| | - Wajid Rehman
- Department of Chemistry Hazara University Mansehra Pakistan
| | | | - Shoaib Khan
- Department of Chemistry Hazara University Mansehra Pakistan
| | - Aneela Malik
- Department of Chemistry COMSATS University Islamabad Islamabad Pakistan
| | - Marwa Khan
- Department of Chemistry Hazara University Mansehra Pakistan
| | - Anjum Liaqat
- Department of Chemistry Hazara University Mansehra Pakistan
| | - Liaqat Rasheed
- Department of Chemistry Hazara University Mansehra Pakistan
| | - Faiza begum
- Department of Chemistry Hazara University Mansehra Pakistan
| | - Srosh Fazil
- Department of Chemistry University of Poonch Rawalakot Azad Jammu and Kashmir Pakistan
| | - Imran Khan
- Department of Chemistry Hazara University Mansehra Pakistan
| | - Magda H. Abdellatif
- Department of Chemistry College of Sciences, Taif University, P. O Box 11099 Taif Saudi Arabia
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9
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Synthesis, antiproliferative, docking and DFT studies of benzimidazole derivatives as EGFR inhibitors. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132265] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Khorsand M, Mostafavi-Pour Z, Razban V, Khajeh S, Zare R. Combinatorial effects of telmisartan and docetaxel on cell viability and metastatic gene expression in human prostate and breast cancer cells. MOLECULAR BIOLOGY RESEARCH COMMUNICATIONS 2022; 11:11-20. [PMID: 35463822 PMCID: PMC9012430 DOI: 10.22099/mbrc.2022.42638.1700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/30/2022]
Abstract
The epithelial-to-mesenchymal transition (EMT) is a unique process resulting in enhanced cell motility, invasiveness, and metastasis in cancer. The EMT is regulated by several transcription factors, including Snail and Slug, which exert crucial roles during cancer progression. We have studied the effects of Docetaxel as the first-line chemotherapy agent for prostate cancer, and Telmisartan as an anti-hypertensive drug on the expression level of Snail and Slug. In addition, the effects of Docetaxel, Telmisartan and their combination on cancer cell proliferation were investigated. The PC3, DU145, MDA-MB468, and HEK cell lines were used for this study. Quantitative RT-PCR analysis and MTT assay were used to study the expression of Snail and Slug level and cell proliferative assay, respectively. We found that a combination of Docetaxel + Telmisartan effectively inhibits the cell proliferation in cancerous cells in comparison with each drug alone (P<0.05). Furthermore, in these cell lines, Docetaxel, Telmisartan and their combination significantly diminished the expression level of Snail and Slug genes compared to control cells (P<0.001), however, in the HEK cell line, this effect was seen only in the combination group. Our data imply that Telmisartan and its combination with Docetaxel exert strong inhibitory effects on the expression level of Snail and Slug genes. Also, these drugs and their combination could inhibit cancer cell proliferation. In conclusion, the combination of Telmisartan and Docetaxel has the potential to suppress the metastasis of prostate and breast cancer cells.
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Affiliation(s)
- Marjan Khorsand
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran,Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zohreh Mostafavi-Pour
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran,Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran,#Zohreh Mostafavi-Pour and Vahid Razban are both corresponding authors and have got the same contribution in this work,Corresponding Author: Biochemistry Department, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran.Tel:+98 71-32 303029 ; Fax: +98 71-32 303029 , E. mail:
| | - Vahid Razban
- Molecular Medicine Department, School of Advanced Medical Sciences and Technology, Shiraz University of Medical Sciences, Shiraz, Iran,Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran,#Zohreh Mostafavi-Pour and Vahid Razban are both corresponding authors and have got the same contribution in this work
| | - Sahar Khajeh
- Bone and Joint Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Razieh Zare
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Khorsand M, Khajeh S, Eslami M, Nezafat N, Ghasemi Y, Razban V, Mostafavi‐Pour Z. Telmisartan anti‐cancer activities mechanism through targeting N‐cadherin by mimicking ADH‐1 function. J Cell Mol Med 2022; 26:2392-2403. [PMID: 35224849 PMCID: PMC8995460 DOI: 10.1111/jcmm.17259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/02/2021] [Accepted: 02/10/2022] [Indexed: 11/30/2022] Open
Abstract
This study aimed to investigate if Telmisartan as a novel N‐cadherin antagonist, can overcome cell migration of cancer cells. We investigated the mechanism and influence of Docetaxel and Telmisartan (as an analogous to ADH‐1, which is a well‐known N‐cadherin antagonist) on cancer cells. The effect of ADH‐1 and Telmisartan on cell attachment in PC3, DU145, MDA‐MB‐468 cell lines using recombinant human N‐cadherin was studied. Cell viability assay was performed to examine the anti‐proliferative effects of Telmisartan, ADH‐1 and Docetaxel. Migration was examined via wound healing assay, and apoptosis was determined by flow cytometry. The expression of AKT‐1 as a downstream gene of N‐cadherin signalling pathway was assayed by real‐time PCR. Treatment of PC3, MDA‐MB‐468 and DU145 cells with Telmisartan (0.1 µM) and ADH‐1 (40 µM) resulted in 50%, 58% and approximately 20% reduction in cell attachment to N‐cadherin coated plate respectively. It shows reduction of cell attachment in PC3 and MDA‐MB‐468 cell lines appeared to be more sensitive than that of DU145 cells to the Telmisartan and ADH‐1 treatments. Telmisartan (0.1 µM) and Docetaxel (0.01 nM) significantly reduced cell migration in PC3 and MDA‐MB‐468 cell lines compared with the control group. Using Real‐time PCR, we found that Telmisartan, Docetaxel and ADH‐1 had significant influence on the AKT‐1 mRNA level. The results of the current study for the first time suggest that, Telmisartan, exerts anti‐proliferation and anti‐migration effects by targeting antagonistically N‐cadherin. Also, these data suggest that Telmisartan as a less expensive alternative to ADH‐1 could potentiate Docetaxel anticancer effects.
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Affiliation(s)
- Marjan Khorsand
- Department of Biochemistry School of Medicine Shiraz University of Medical Sciences Shiraz Iran
| | - Sahar Khajeh
- Bone and Joint Diseases Research Center Shiraz University of Medical Sciences Shiraz Iran
| | - Mahboobeh Eslami
- Pharmaceutical Sciences Research Center Shiraz University of Medical Sciences Shiraz Iran
| | - Navid Nezafat
- Pharmaceutical Sciences Research Center Shiraz University of Medical Sciences Shiraz Iran
- Department of Pharmaceutical Biotechnology School of Pharmacy Shiraz University of Medical Sciences Shiraz Iran
| | - Younes Ghasemi
- Pharmaceutical Sciences Research Center Shiraz University of Medical Sciences Shiraz Iran
- Department of Pharmaceutical Biotechnology School of Pharmacy Shiraz University of Medical Sciences Shiraz Iran
| | - Vahid Razban
- Molecular Medicine Department School of Advanced Medical Sciences and Technology Shiraz University of Medical Sciences Shiraz Iran
- Stem Cell Technology Research Center Shiraz University of Medical Sciences Shiraz Iran
| | - Zohreh Mostafavi‐Pour
- Department of Biochemistry School of Medicine Shiraz University of Medical Sciences Shiraz Iran
- Autophagy Research Center Shiraz University of Medical Sciences Shiraz Iran
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Tsujiya Y, Hasegawa A, Yamamori M, Okamura N. Telmisartan-Induced Cytotoxicity via G 2/M Phase Arrest in Renal Cell Carcinoma Cell Lines. Biol Pharm Bull 2021; 44:1878-1885. [PMID: 34853271 DOI: 10.1248/bpb.b21-00654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Renal cell carcinoma (RCC) is the most common type of kidney cancer. Given that stage IV RCC is intractable, there is a need for a novel treatment strategy. We investigated the antitumor effects of telmisartan (TEL) and their underlying mechanisms in RCC, including their impact on apoptosis, Akt/mammalian target of rapamycin (mTOR) pathways, and the cell cycle using two human RCC cell lines: 786-O and Caki-2. Cell viability was detected via fluorescence-based assays. Cells were stained with Hoechst 33342 to observe chromatin condensation, and Western blotting was performed to analyze protein expression. The cell cycle was assessed using flow cytometry. Invasion and migration assays were performed using 24-well chambers. TEL induced cell death in a dose-dependent manner and increased the percentage of cells with high chromatin condensation and Bax/Bcl-2 ratio in both cell lines. TEL-induced cell death was attenuated by neither peroxisome proliferator-activated receptor-γ nor -δ inhibitors. Although TEL elevated c-Jun N-terminal kinase levels and p38 phosphorylation rates in Caki-2 cells, as well as extracellular signal-regulated kinase phosphorylation rates in 786-O cells, their inhibitors did not suppress TEL-induced cell death. TEL decreased Akt phosphorylation in 786-O cells and mTOR phosphorylation in both cell lines, increased the population of cells in the G2/M phase, and altered G2/M-related proteins in both cell lines. TEL moderately suppressed cell invasion and migration in 786-O and Caki-2 cells, respectively, and increased cell invasion in Caki-2 cells, suggesting a potential therapeutic role of TEL in RCC.
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Affiliation(s)
- Yoshie Tsujiya
- Department of Clinical Pharmacy, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University
| | - Ai Hasegawa
- Department of Clinical Pharmacy, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University
| | - Motohiro Yamamori
- Department of Clinical Pharmacy, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University
| | - Noboru Okamura
- Department of Clinical Pharmacy, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University
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Taghvaei S, Sabouni F, Minuchehr Z. Evidence of Omics, Immune Infiltration, and Pharmacogenomic for SENP1 in the Pan-Cancer Cohort. Front Pharmacol 2021; 12:700454. [PMID: 34276383 PMCID: PMC8280523 DOI: 10.3389/fphar.2021.700454] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/14/2021] [Indexed: 12/20/2022] Open
Abstract
Sentrin specific-protease 1 (SENP1) is a protein involved in deSUMOylation that is almost overexpressed in cancer. SENP1 has a determinative role in the activation of transcription programs in the innate immune responses and the development B of and C lymphocytes. We found, SENP1 possibly plays a critical role in immune infiltration and acts as an expression marker in PAAD, ESCA, and THYM. CD4+ T cells, CD8+ T cells, and macrophages were more key-related immune cells, indicating that SENP1 might be introduced as a potential target for cancer immunotherapy. We further showed that dysregulation of SENP1 is powerfully associated with decreased patient survival and clinical stage. Total SENP1 protein also increases in cancer. SENP1 is also controlled by transcription factors (TFs) CREB1, KDM5A, REST, and YY1 that regulates apoptosis, cell cycle, cell proliferation, invasion, tumorigenesis, and metastasis. These TFs were in a positive correlation with SENP1. MiR-138-5p, miR-129-1-3p, and miR-129-2-3p also inhibit tumorigenesis through targeting of SENP1. The SENP1 expression level positively correlated with the expression levels of UBN1, SP3, SAP130, NUP98, NUP153 in 32 tumor types. SENP1 and correlated and binding genes: SAP130, NUP98, and NUP153 activated cell cycle. Consistent with this finding, drug analysis was indicated SENP1 is sensitive to cell cycle, apoptosis, and RTK signaling regulators. In the end, SENP1 and its expression-correlated and functional binding genes were enriched in cell cycle, apoptosis, cellular response to DNA damage stimulus. We found that the cell cycle is the main way for tumorigenesis by SENP1. SENP1 attenuates the effect of inhibitory drugs on the cell cycle. We also introduced effective FDA-Approved drugs that can inhibit SENP1. Therefore in the treatments in which these drugs are used, SENP1 inhibition is a suitable approach. This study supplies a wide analysis of the SENP1 across The Cancer Genome Atlas (CGA) cancer types. These results suggest the potential roles of SENP1 as a biomarker for cancer. Since these drugs and the drugs that cause to resistance are applied to cancer treatment, then these two class drugs can use to inhibition of SENP1.
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Affiliation(s)
- Somayye Taghvaei
- Department of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Farzaneh Sabouni
- Department of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Zarrin Minuchehr
- Department of Systems Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
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IL13Rα2 Is Involved in the Progress of Renal Cell Carcinoma through the JAK2/FOXO3 Pathway. J Pers Med 2021; 11:jpm11040284. [PMID: 33917914 PMCID: PMC8068290 DOI: 10.3390/jpm11040284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/04/2021] [Accepted: 04/07/2021] [Indexed: 12/17/2022] Open
Abstract
Previously, we reported a close relationship between type II IL4Rα and IL13Rα1 complex and poor outcomes in renal cell carcinoma (RCC). In this study, we investigated the clinicopathologically significant oncogenic role of IL13Rα2, a kind of the independent receptor for IL13, in 229 RCC patients. The high expression of IL13Rα2 was closely related to relapse-free survival in specific cancers in univariate and multivariate analysis. Then, the oncogenic role of IL13Rα2 was evaluated by performing in vitro assays for cell proliferation, cell cycle arrest, and apoptosis in A498, ACHN, Caki1, and Caki2, four kinds of RCC cells after transfection of siRNA against IL13Rα2. Cell proliferation was suppressed, and apoptosis was induced in A498, ACHN, Caki1, and Caki2 cells by knockdown of IL13Rα2. Interestingly, the knockdown of IL13Rα2 decreased the phosphorylation of JAK2 and increased the expression of FOXO3. Furthermore, the knockdown of IL13Rα2 reduced the protein interaction among IL13Rα2, phosphorylated JAK2, and FOXO3. Since phosphorylation of JAK2 was regulated by IL13Rα2, we tried to screen a novel JAK2 inhibitor from the FDA-approved drug library and selected telmisartan, a clinically used medicine against hypertension, as one of the strongest candidates. Telmisartan treatment decreased the cell proliferation rate and increased apoptosis in A498, ACHN, Caki1, and Caki2 cells. Mechanistically, telmisartan treatment decreased the phosphorylation of JAK2 and increased the expression of FOXO3. Taken together, these results suggest that IL13Rα2 regulates the progression of RCC via the JAK2/FOXO3-signaling path pathway, which might be targeted as the novel therapeutic option for RCC patients.
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15
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Martínez VR, Aguirre MV, Todaro JS, Ferrer EG, Williams PAM. Candesartan and valsartan Zn(ii) complexes as inducing agents of reductive stress: mitochondrial dysfunction and apoptosis. NEW J CHEM 2021. [DOI: 10.1039/d0nj02937h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Candesartan and valsartan Zn(ii) complexes as inducing agents of reductive stress, including mitochondrial dysfunction and apoptosis.
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Affiliation(s)
- Valeria R. Martínez
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP)
- La Plata
- Argentina
| | - María V. Aguirre
- Laboratorio de Investigaciones Bioquímicas
- Facultad de Medicina
- UNNE
- Corrientes
- Argentina
| | - Juan S. Todaro
- Laboratorio de Investigaciones Bioquímicas
- Facultad de Medicina
- UNNE
- Corrientes
- Argentina
| | - Evelina G. Ferrer
- Centro de Química Inorgánica (CEQUINOR-CONICET-CICPBA-UNLP)
- La Plata
- Argentina
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16
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ÖztÜrk N, Kara A, Vural İ. Formulation and In Vitro Evaluation of Telmisartan Nanoparticles Prepared by Emulsion-Solvent Evaporation Technique. Turk J Pharm Sci 2020; 17:492-499. [PMID: 33177929 DOI: 10.4274/tjps.galenos.2019.76402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 07/30/2019] [Indexed: 12/01/2022]
Abstract
Objectives Telmisartan (TLM) is an antihypertensive drug that has been shown to have antiproliferative effects on cancer cells. It has low solubility and suboptimal oral bioavailability. To investigate the potential anticancer effect of TLM on breast cancer cells, poly (D, L-lactide) (PLA) nanoparticles were formulated with the benefit of improving its solubility. Materials and Methods TLM-loaded PLA nanoparticles were prepared by emulsion solvent evaporation. The effects of sonication time and polymer:drug ratio on nanoparticle size and drug encapsulation were investigated. TLM-loaded nanoparticles were tested against MCF-7 and MD-AMB-231 breast cancer cell lines for antiproliferative effects. Results Nanoparticles with mean particle size 272 nm and 79% encapsulation efficiency were obtained. Sustained release TLM nanoparticles (40% in 24 h) decreased cell viability to 45% for MCF-7 cells at 72 h, even at the lowest TLM concentration, indicating better anticancer efficiency than TLM solution. Conclusion TLM nanoparticles could be potential anticancer agents for breast cancer and deserve further studies.
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Affiliation(s)
- Naile ÖztÜrk
- İnönü University Faculty of Pharmacy, Department of Pharmaceutical Technology, Malatya, Turkey
| | - Aslı Kara
- Hitit University Sungurlu Vocational High School, Department of Medical Services and Techniques, Çorum, Turkey
| | - İmran Vural
- Hacettepe University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
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17
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Peng T, Wang G, Cheng S, Xiong Y, Cao R, Qian K, Ju L, Wang X, Xiao Y. The role and function of PPARγ in bladder cancer. J Cancer 2020; 11:3965-3975. [PMID: 32328200 PMCID: PMC7171493 DOI: 10.7150/jca.42663] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 03/08/2020] [Indexed: 12/15/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARγ), a member of the nuclear receptor superfamily, participates in multiple physiological and pathological processes. Extensive studies have revealed the relationship between PPARγ and various tumors. However, the expression and function of PPARγ in bladder cancer seem to be controversial. It has been demonstrated that PPARγ affects the occurrence and progression of bladder cancer by regulating proliferation, apoptosis, metastasis, and reactive oxygen species (ROS) and lipid metabolism, probably through PPARγ-SIRT1 feedback loops, the PI3K-Akt signaling pathway, and the WNT/β-catenin signaling pathway. Considering the frequent relapses after chemotherapy, some researchers have focused on the relationship between PPARγ and chemotherapy sensitivity in bladder cancer. Moreover, the feasibility of PPARγ ligands as potential therapeutic targets for bladder cancer has been uncovered. Taken together, this review summarizes the relevant literature and our findings to explore the complicated role and function of PPARγ in bladder cancer.
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Affiliation(s)
- Tianchen Peng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
| | - Gang Wang
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Songtao Cheng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
| | - Yaoyi Xiong
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
| | - Rui Cao
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Kaiyu Qian
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Lingao Ju
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yu Xiao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
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18
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Xie Y, Xu P, Wang M, Zheng Y, Tian T, Yang S, Deng Y, Wu Y, Zhai Z, Hao Q, Song D, Zhang D, Dai Z. Antihypertensive medications are associated with the risk of kidney and bladder cancer: a systematic review and meta-analysis. Aging (Albany NY) 2020; 12:1545-1562. [PMID: 31968309 PMCID: PMC7053620 DOI: 10.18632/aging.102699] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 12/26/2019] [Indexed: 12/24/2022]
Abstract
Several studies have indicated that the use of antihypertensive medications may influence the incidence of bladder/kidney cancer, with some scholars refuting any such association. Hence, a systematic review is needed to verify this linkage. we comprehensively searched PubMed, Embase, Web of Science, and the Cochrane Library for original studies reporting a relationship between antihypertensive medications and risk of bladder/kidney cancer. We included 31 articles comprising 3,352,264 participants. We found a significant association between the risk of kidney cancer and any antihypertensive medications use (relative risk (RR) = 1.45, 95% CI 1.20-1.75), as well as angiotensin-converting enzyme inhibitors (RR = 1.24, 95% CI 1.04-1.48), angiotensin II receptor blockers (ARB) (RR = 1.29, 95% CI:1.22-1.37), beta-blockers (RR = 1.36, 95% CI 1.11-1.66), calcium-channel blockers (RR = 1.65, 95% CI 1.54-1.78) and diuretics (RR = 1.34, 95% CI 1.19-1.51). In case of bladder cancer, a statistical significance was observed with the use of ARB (RR = 1.07, 95% CI 1.03-1.11) but not with the other antihypertensive medications. There was a linear association between the duration of antihypertensive medications and the risk of kidney cancer (P = 0.061 for a non-linear trend) and the pooled RR for the per year increase in antihypertensive medications duration of use was 1.02 (95% CI: 1.01-1.02). Our results indicate that there is a significant association between each class of antihypertensive medications and the risk of kidney cancer, and this trend presented as a positive linear association. Furthermore, the use of ARB has been linked to the risk of bladder cancer.
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Affiliation(s)
- Yuxiu Xie
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Xu
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Meng Wang
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yi Zheng
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tian Tian
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Si Yang
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yujiao Deng
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ying Wu
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhen Zhai
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qian Hao
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Dingli Song
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Dai Zhang
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhijun Dai
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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19
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Matsui T, Chiyo T, Kobara H, Fujihara S, Fujita K, Namima D, Nakahara M, Kobayashi N, Nishiyama N, Yachida T, Morishita A, Iwama H, Masaki T. Telmisartan Inhibits Cell Proliferation and Tumor Growth of Esophageal Squamous Cell Carcinoma by Inducing S-Phase Arrest In Vitro and In Vivo. Int J Mol Sci 2019; 20:ijms20133197. [PMID: 31261874 PMCID: PMC6651359 DOI: 10.3390/ijms20133197] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 12/24/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is the most common primary esophageal malignancy. Telmisartan, an angiotensin II type 1 (AT1) receptor blocker (ARB) and a widely used antihypertensive, has been shown to inhibit proliferation of various cancer types. This study evaluated the effects of telmisartan on human ESCC cell proliferation in vitro and in vivo and sought to identify the microRNAs (miRNAs) involved in these antitumor effects. We examined the effects of telmisartan on three human ESCC cell lines (KYSE150, KYSE180, and KYSE850). Telmisartan inhibited proliferation of these three cell lines by inducing S-phase arrest, which was accompanied by decreased expression of cyclin A2, cyclin-dependent kinase 2, and other cell cycle-related proteins. Additionally, telmisartan reduced levels of phosphorylated ErbB3 and thrombospondin-1 in KYSE180 cells. Furthermore, expression of miRNAs was remarkably altered by telmisartan in vitro. Telmisartan also inhibited tumor growth in vivo in a xenograft mouse model. In conclusion, telmisartan inhibited cell proliferation and tumor growth in ESCC cells by inducing cell-cycle arrest.
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Affiliation(s)
- Takanori Matsui
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Taiga Chiyo
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Hideki Kobara
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Shintaro Fujihara
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Koji Fujita
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Daisuke Namima
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Mai Nakahara
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Nobuya Kobayashi
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Noriko Nishiyama
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Tatsuo Yachida
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Asahiro Morishita
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan
| | - Hisakazu Iwama
- Life Science Research Center, Kagawa University, Kagawa 761-0793, Japan
| | - Tsutomu Masaki
- Department of Gastroenterology and Neurology, Kagawa University, Kagawa 761-0793, Japan.
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20
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Goud NS, Ghouse SM, Vishnu J, Komal D, Talla V, Alvala R, Pranay J, Kumar J, Qureshi IA, Alvala M. Synthesis of 1-benzyl-1H-benzimidazoles as galectin-1 mediated anticancer agents. Bioorg Chem 2019; 89:103016. [PMID: 31185390 DOI: 10.1016/j.bioorg.2019.103016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 05/07/2019] [Accepted: 05/26/2019] [Indexed: 02/08/2023]
Abstract
In our pursuit to develop novel non-carbohydrate small molecule Galectin-1 Inhibitors, we have designed a series of 1-benzyl-1H-benzimidazole derivatives and demonstrated their anticancer activity. The compound 6g, 4-(1-benzyl-5-chloro-1H-benzo[d]imidazol-2-yl)-N-(4-hydroxyphenyl) benzamide was found to be most potent with an IC50 of 7.01 ± 0.20 µM and arresting MCF-7 cell growth at G2/M phase and S phase. Induction of apoptosis was confirmed by morphological changes like cell shrinkage, blebbing and cell wall deformation, dose dependent increase in the mitochondrial membrane potential (ΔΨm) and ROS levels. Further, dose dependent decrease in Gal-1 protein levels proves Gal-1 mediated apoptosis by 6g. Molecular docking studies were performed to understand the Gal-1 interaction with compound 6g. In addition, RP-HPLC studies showed 85.44% of 6g binding to Gal-1. Binding affinity studies by fluorescence spectroscopy and Surface Plasmon Resonance (SPR) showed that 6g binds to Gal-1 with binding constant (Ka) of 1.2 × 104 M-1 and equilibrium constant KD value of 5.76 × 10-4 M respectively.
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Affiliation(s)
- Nerella Sridhar Goud
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - S Mahammad Ghouse
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Jatoth Vishnu
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - D Komal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Venu Talla
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Ravi Alvala
- G. Pulla Reddy College of Pharmacy, Hyderabad 500 028, India
| | - Jakkula Pranay
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India
| | - Janish Kumar
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India
| | - Insaf A Qureshi
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India
| | - Mallika Alvala
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
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21
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Mielczarek-Puta M, Otto-Ślusarczyk D, Chrzanowska A, Filipek A, Graboń W. Telmisartan Influences the Antiproliferative Activity of Linoleic Acid in Human Colon Cancer Cells. Nutr Cancer 2019; 72:98-109. [PMID: 31094234 DOI: 10.1080/01635581.2019.1613552] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Aim: Linoleic acid (LA) and telmisartan as PPARgamma agonists exhibit anticancer activity. The LA effect is observed for high non-achievable in vivo concentrations and in short treatment period, therefore we evaluate the effect of supplemental LA and pharmacological telmisartan plasma concentrations on human primary (SW480) and metastatic (SW620) colon cancer cells and immortal keratinocytes (HaCaT) cells in long-term treatment. Methods: Cell viability and proliferation were determined by TB and MTT and pro-apoptotic effect was measured by Annexin V binding assays, respectively.Results: LA decreased cancer cell viability and proliferation in a concentration-dependent manner, whereas no significant effect was found for HaCaT cells. Telmisartan (0.2 µM) suppresses antiproliferative effect of 60 µM LA on cancer cells in short-term treatment. Long-term administration of 60 µM LA reduced cancer cells viability after one week, while telmisartan delayed this effect by two weeks. Growth of all cell lines with 20 µM LA was unchanged during all treatment time. Telmisartan decreased late apoptosis of cancer and normal cells with 60 and 120 µM LA. Conclusion: The cytotoxic LA action depends not only on its concentration but also duration of treatment. Telmisartan exhibits biphasic but not synergistic effect on LA cytotoxicity in cancer cells.
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Affiliation(s)
- Magdalena Mielczarek-Puta
- Faculty of Medicine, Chair and Department of Biochemistry, Medical University of Warsaw, Banacha, Warsaw, Poland
| | - Dagmara Otto-Ślusarczyk
- Faculty of Medicine, Chair and Department of Biochemistry, Medical University of Warsaw, Banacha, Warsaw, Poland
| | - Alicja Chrzanowska
- Faculty of Medicine, Chair and Department of Biochemistry, Medical University of Warsaw, Banacha, Warsaw, Poland
| | - Agnieszka Filipek
- Faculty of Pharmacy, Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, Banacha, Warsaw, Poland
| | - Wojciech Graboń
- Faculty of Medicine, Chair and Department of Biochemistry, Medical University of Warsaw, Banacha, Warsaw, Poland
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22
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Santala EEE, Rannikko A, Murtola TJ. Antihypertensive drugs and prostate cancer survival after radical prostatectomy in Finland—A nationwide cohort study. Int J Cancer 2018; 144:440-447. [DOI: 10.1002/ijc.31802] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/27/2018] [Accepted: 07/11/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Eerik EE Santala
- Faculty of Medicine and Life SciencesUniversity of Tampere Tampere Finland
| | - Antti Rannikko
- Department of UrologyHelsinki University Hospital and University of Helsinki Helsinki Finland
| | - Teemu J Murtola
- Faculty of Medicine and Life SciencesUniversity of Tampere Tampere Finland
- Department of UrologyTampere University Hospital Tampere Finland
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23
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Zhang S, Wang Y. Telmisartan inhibits NSCLC A549 cell proliferation and migration by regulating the PI3K/AKT signaling pathway. Oncol Lett 2018; 15:5859-5864. [PMID: 29552215 DOI: 10.3892/ol.2018.8002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 12/12/2017] [Indexed: 12/14/2022] Open
Abstract
Expression of angiotensin II (Ang II), a key biological peptide in the renin-angiotensin system, is closely associated with the occurrence and development of cancer. Ang II binds two receptor subtypes, the Ang II type 1 receptor (AT1R) and the AT2R, to mediate a series of biological effects. Telmisartan, a specific AT1R blocker, has been reported to have potential as an anticancer drug for treating renal cancer. In the present study, whether telmisartan had an effect on non-small cell lung cancer (NSCLC) cell proliferation and migration was investigated. The Cell Counting kit-8 assay revealed that telmisartan significantly inhibited the growth of the NSCLC A549 cell line in a time- and dose-dependent manner. In a transwell assay, telmisartan significantly inhibited cellular invasion and migration. Furthermore, it was determined that the expression of the anti-apoptotic protein B-cell lymphoma was decreased, and that of the pro-apoptotic proteins caspase-3 and Bcl-associated X increased in the A549 cells treated with telmisartan. Additionally, levels of phosphorylated RAC serine/threonine-protein kinase (p-AKT), p-mechanistic target of rapamycin, p70-S6 kinase and cyclin D1 was decreased in the telmisartan-treated group. Therefore, the current study reveals that telmisartan-induced NSCLC apoptosis may be regulated via the phosphoinositide 3-kinase/AKT signaling pathway, which indicates that it may be a potential novel drug for clinical NSCLC treatment.
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Affiliation(s)
- Suolin Zhang
- Department of Chest Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
| | - Yayan Wang
- Department of Respiratory Medicine, Affiliated Hospital of Yanbian University, Yanji, Jilin 133000, P.R. China
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24
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Wang C, Wang WB. Telmisartan Induces Osteosarcoma Cells Growth Inhibition and Apoptosis Via Suppressing mTOR Pathway. Open Life Sci 2018; 13:242-249. [PMID: 33817089 PMCID: PMC7874731 DOI: 10.1515/biol-2018-0029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/28/2018] [Indexed: 11/15/2022] Open
Abstract
Osteosarcoma (OS) is a commonly occurring primary malignant bone cancer with serious impact and high mortality, yet effective and safe therapy method not available. The aim of the present study was to elucidate the antitumor effect of telmisartan on human osteosarcoma cells in vitro and its underlying mechanism. The proliferation effect of osteosarcoma cell lines U2OS was examined by Cell Counting Kit-8. The invasive and migratory capabilities were determined by transwell invasion and migration assay. The percentage of apoptotic cells were detected by flow cytometric analysis and proteins related to apoptosis including Bax, Bcl-2 and Cleaved Caspase-3 were examined by western blotting. The expressions of mammalian target of rapamycin (mTOR) signaling relevant molecules were detected by western blot assay. Telmisartan treatment caused dose-dependent and time-dependent inhibition of proliferation and inducing anti-migration, anti-invasiveness and apoptosis of U2OS cells. The induction of apoptosis was confirmed concurring with the altered expression of proteins associated with the apoptosis. Mechanistically, telmisartan suppresses mTOR activation. Telmisartan can impede the growth, invasion, migration and induce the apoptosis of U2OS cell probably through inhibiting the mTOR signaling pathway activation. Thus, telmisartan is a potential drug for the prevention and treatment of human osteosarcomal cancer.
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Affiliation(s)
- Chao Wang
- The Third Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, China
| | - Wen-Bo Wang
- The Third Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, China
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25
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Oura K, Tadokoro T, Fujihara S, Morishita A, Chiyo T, Samukawa E, Yamana Y, Fujita K, Sakamoto T, Nomura T, Yoneyama H, Kobara H, Mori H, Iwama H, Okano K, Suzuki Y, Masaki T. Telmisartan inhibits hepatocellular carcinoma cell proliferation in vitro by inducing cell cycle arrest. Oncol Rep 2017; 38:2825-2835. [PMID: 29048654 PMCID: PMC5780034 DOI: 10.3892/or.2017.5977] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 08/28/2017] [Indexed: 12/22/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common primary malignancy of the liver and the third leading cause of cancer-related death. Telmisartan, a widely used antihypertensive drug, is an angiotensin II type 1 (AT1) receptor blocker (ARB) that might inhibit cancer cell proliferation, but the mechanisms through which telmisartan affects various cancers remain unknown. The aim of the present study was to evaluate the effects of telmisartan on human HCC and to assess the expression of microRNAs (miRNAs). We studied the effects of telmisartan on HCC cells using the HLF, HLE, HepG2, HuH-7 and PLC/PRF/5 cell lines. In our experiments, telmisartan inhibited the proliferation of HLF, HLE and HepG2 cells, which represent poorly differentiated types of HCC cells. However, HuH-7 and PLC/PRF/5 cells, which represent well-differentiated types of HCC cells, were not sensitive to telmisartan. Telmisartan induced G0/G1 cell cycle arrest of HLF cells by inhibiting the G0-to-G1 cell cycle transition. This blockade was accompanied by a marked decrease in the levels of cyclin D1, cyclin E and other cell cycle-related proteins. Notably, the activity of the AMP-activated protein kinase (AMPK) pathway was increased, and the mammalian target of rapamycin (mTOR) pathway was inhibited by telmisartan treatment. Additionally, telmisartan increased the level of caspase-cleaved cytokeratin 18 (cCK18), partially contributed to the induction of apoptosis in HLF cells and reduced the phosphorylation of ErbB3 in HLF cells. Furthermore, miRNA expression was markedly altered by telmisartan in vitro. In conclusion, telmisartan inhibits human HCC cell proliferation by inducing cell cycle arrest.
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Affiliation(s)
- Kyoko Oura
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Tomoko Tadokoro
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Shintaro Fujihara
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Asahiro Morishita
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Taiga Chiyo
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Eri Samukawa
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Yoshimi Yamana
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Koji Fujita
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Teppei Sakamoto
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Takako Nomura
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Hirohito Yoneyama
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Hideki Kobara
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Hirohito Mori
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Hisakazu Iwama
- Life Science Research Center, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Keiichi Okano
- Gastroenterological Surgery, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Yasuyuki Suzuki
- Gastroenterological Surgery, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Tsutomu Masaki
- Department of Gastroenterology and Neurology, Faculty of Medicine/Graduate School of Medicine, Kagawa University, Kagawa 761-0793, Japan
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Synthesis of substituted phenanthrene-9-benzimidazole conjugates: Cytotoxicity evaluation and apoptosis inducing studies. Eur J Med Chem 2017; 140:128-140. [PMID: 28923381 DOI: 10.1016/j.ejmech.2017.09.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/21/2017] [Accepted: 09/04/2017] [Indexed: 02/01/2023]
Abstract
A series of new phenanthrene-9-benzimidazole conjugates has been synthesized by condensing phenanthrene aldehydes with various substituted o-phenylenediamines. The title compounds were evaluated for their in vitro cytotoxic potential against various human cancer cell lines like breast (BT-549), prostate (PC-3 and DU145), triple negative breast cancer (MDA-MB-453), and human colon cancer (HCT-116 and HCT-15) cells. Among the tested compounds, 10o displayed significant in vitro cytotoxic activity against PC-3 prostate cancer cells with an IC50 value of 6.32 ± 0.09 μM. Further, the cell cycle analysis indicated that it blocks G2/M phase of the cell cycle in a dose dependent manner. In order to determine the effect of the compound 10o on cell viability; phase contrast microscopy, AO/EB staining, DAPI staining, and DCFDA staining studies were performed. In these studies, apoptotic features were clearly observed indicating that the compound inhibited cell proliferation by apoptosis. JC-1 staining and annexin binding assays indicated the extent of apoptosis in PC-3 cells. Further, relative viscosity measurements and molecular docking studies indicated that these compounds bind to DNA by intercalation.
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Ishola IO, Anunobi CC, Tijani KH, Afolayan O, Udokwu VU. Potential of telmisartan in the treatment of benign prostatic hyperplasia. Fundam Clin Pharmacol 2017; 31:643-651. [PMID: 28727906 DOI: 10.1111/fcp.12304] [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: 05/18/2017] [Revised: 07/08/2017] [Accepted: 07/17/2017] [Indexed: 11/26/2022]
Abstract
Benign prostatic hyperplasia (BPH) is a common health problem in ageing men. This study was carried out to investigate the protective effect of telmisartan on testosterone-induced BPH in rats. Fifty-four male Wistar rats (200-250 g) were randomly divided into nine groups (n = 6) and orally treated for 28 consecutive days: group 1 - vehicle normal, olive oil (10 mL/kg); group 2 - BPH model control (10 mL/kg); groups 3-5 - telmisartan (5, 10 or 20 mg/kg, respectively); group 6 - pioglitazone (20 mg/kg); group 7 - celecoxib (20 mg/kg); group 8 - combination of telmisartan (5 mg/kg) and pioglitazone (20 mg/kg); group 9 - combination of telmisartan (5 mg/kg) and celecoxib (20 mg/kg). Animals in groups 2-9 were given testosterone propionate in olive oil (3 mg/kg) subcutaneously 15 min after pretreatments. On day 29, blood was collected for the estimation of serum testosterone and prostate-specific antigen (PSA). The prostates were excised, weighed and subjected to biochemical and histological studies. Testosterone injection induced significant increase in prostatic index, serum testosterone and PSA suggesting BPH as well as increased prostate oxidative stress which were ameliorated with the pretreatment of rats with telmisartan or co-administration of celecoxib and pioglitazone. Histological examination showed that testosterone disrupted the morphology of the prostate epithelial cells evidenced in the involution of the epithelial lining of the acini into the lumen indicating BPH which was reversed by telmisartan. Findings from this study showed that telmisartan alone or in combination with pioglitazone prevented the development of testosterone-induced prostatic hyperplasia.
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Affiliation(s)
- Ismail Ogunbayode Ishola
- Department of Pharmacology, Therapeutics and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Charles C Anunobi
- Department of Anatomic and Molecular Pathology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Kehinde Habeeb Tijani
- Department of Surgery, Urology Unit, Faculty of Clinical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Olasunmbo Afolayan
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Victoria U Udokwu
- Department of Pharmacology, Therapeutics and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
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Woo Y, Jung YJ. Angiotensin II receptor blockers induce autophagy in prostate cancer cells. Oncol Lett 2017; 13:3579-3585. [PMID: 28529582 PMCID: PMC5431597 DOI: 10.3892/ol.2017.5872] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 01/26/2017] [Indexed: 01/07/2023] Open
Abstract
Angiotensin II receptor blockers (ARBs) are anti-hypertensive drugs that competitively inhibit the binding of angiotensin II to its receptor, resulting in blood vessel dilation and the reduction of blood pressure. These antagonists are also known as sartans, and are a group of pharmaceuticals that possess tetrazole or imidazole groups. In the present study, the anticancer and antimetastatic effects of the ARBs fimasartan, losartan, eprosartan and valsartan on the human prostate cancer PC-3, DU-145 and LNCap-LN3 cell lines were investigated in vitro. The proliferation of the prostate cancer cells was inhibited following treatment with 100 µM ARB. In particular, treatment with fimasartan resulted in marked anti-proliferative activity compared with the other ARBs. With respect to the molecular mechanism of the growth inhibition exhibited by the ARBs, 3-methyladenin (3-MA), an autophagy inhibitor, was revealed to increase the survival rate of PC-3 cells when cell death inhibitors were pretreated with fimasartan. In addition, the ARBs induced autophagy with increased expression levels of autophagy protein (Atg) 5-12, Atg 16-like-1, beclin-1 and microtubule-associated protein 1A/1B-light chain 3 (LC3). Notably, the enhanced expression of LC3-II (a 6.7-fold increase at 72 h) was observed in PC3 cells treated with fimasartan. This was supported by the observation of the time-dependent accumulation of LC3-positive foci in PC-3. In addition, a migration assay indicated that the ARBs induced anti-metastatic effects in PC-3 and DU-145 cells. The aforementioned results suggest that ARBs may induce autophagy-associated cell death and anti-metastatic activity in prostate cancer cells. Thus, ARBs may be a potential medication for patients with prostate cancer and hypertension.
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Affiliation(s)
- Yunseo Woo
- Department of Biological Sciences and Bio-Information Technology Medical Convergence Program, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Yu-Jin Jung
- Department of Biological Sciences and Bio-Information Technology Medical Convergence Program, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea
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Kozako T, Soeda S, Yoshimitsu M, Arima N, Kuroki A, Hirata S, Tanaka H, Imakyure O, Tone N, Honda SI, Soeda S. Angiotensin II type 1 receptor blocker telmisartan induces apoptosis and autophagy in adult T-cell leukemia cells. FEBS Open Bio 2016; 6:442-60. [PMID: 27419050 PMCID: PMC4856423 DOI: 10.1002/2211-5463.12055] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 03/09/2016] [Accepted: 03/09/2016] [Indexed: 11/16/2022] Open
Abstract
Adult T‐cell leukemia/lymphoma (ATL), an aggressive T‐cell malignancy that develops after long‐term infection with human T‐cell leukemia virus (HTLV‐1), requires new treatments. Drug repositioning, reuse of a drug previously approved for the treatment of another condition to treat ATL, offers the possibility of reduced time and risk. Among clinically available angiotensin II receptor blockers, telmisartan is well known for its unique ability to activate peroxisome proliferator‐activated receptor‐γ, which plays various roles in lipid metabolism, cellular differentiation, and apoptosis. Here, telmisartan reduced cell viability and enhanced apoptotic cells via caspase activation in ex vivo peripheral blood monocytes from asymptomatic HTLV‐1 carriers (ACs) or via caspase‐independent cell death in acute‐type ATL, which has a poor prognosis. Telmisartan also induced significant growth inhibition and apoptosis in leukemia cell lines via caspase activation, whereas other angiotensin II receptor blockers did not induce cell death. Interestingly, telmisartan increased the LC3‐II‐enriched protein fraction, indicating autophagosome accumulation and autophagy. Thus, telmisartan simultaneously caused caspase activation and autophagy. A hypertension medication with antiproliferation effects on primary and leukemia cells is intriguing. Patients with an early diagnosis of ATL are generally monitored until the disease progresses; thus, suppression of progression from AC and indolent ATL to acute ATL is important. Our results suggest that telmisartan is highly effective against primary cells and leukemia cell lines in caspase‐dependent and ‐independent manners, and its clinical use may suppress acute transformation and improve prognosis of patients with this mortal disease. This is the first report demonstrating a cell growth‐inhibitory effect of telmisartan in fresh peripheral blood mononuclear cells from leukemia patients.
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Affiliation(s)
- Tomohiro Kozako
- Department of Biochemistry Faculty of Pharmaceutical Sciences Fukuoka University Japan
| | - Shuhei Soeda
- Department of Biochemistry Faculty of Pharmaceutical Sciences Fukuoka University Japan
| | - Makoto Yoshimitsu
- Department of Hematology and Immunology Kagoshima University Hospital Japan; Division of Hematology and Immunology School of Medical and Dental Sciences Center for Chronic Viral Diseases Graduate Kagoshima University Japan
| | - Naomichi Arima
- Department of Hematology and Immunology Kagoshima University Hospital Japan; Division of Hematology and Immunology School of Medical and Dental Sciences Center for Chronic Viral Diseases Graduate Kagoshima University Japan
| | - Ayako Kuroki
- Division of Hematology and Immunology School of Medical and Dental Sciences Center for Chronic Viral Diseases Graduate Kagoshima University Japan
| | - Shinya Hirata
- Department of Rheumatology and Clinical Immunology Kumamoto University Hospital Japan
| | - Hiroaki Tanaka
- Faculty of Sports and Health Science Fukuoka University Japan
| | - Osamu Imakyure
- Department of Pharmaceutical Care and Health Sciences Faculty of Pharmaceutical Sciences Fukuoka University Japan
| | - Nanako Tone
- Department of Biochemistry Faculty of Pharmaceutical Sciences Fukuoka University Japan
| | - Shin-Ichiro Honda
- Department of Biochemistry Faculty of Pharmaceutical Sciences Fukuoka University Japan
| | - Shinji Soeda
- Department of Biochemistry Faculty of Pharmaceutical Sciences Fukuoka University Japan
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Increase of human prostate cancer cell (DU145) apoptosis by telmisartan through PPAR-delta pathway. Eur J Pharmacol 2016; 775:35-42. [PMID: 26852954 DOI: 10.1016/j.ejphar.2016.02.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 02/03/2016] [Accepted: 02/03/2016] [Indexed: 12/23/2022]
Abstract
The effect of telmisartan on prostate cancer DU145 cell survival and the underlying mechanism of apoptosis involving peroxisome proliferator-activated receptor (PPAR) pathway were investigated. Cultured DU145 cells were treated pharmacologically with telmisartan and GSK0660 (a PPAR-delta antagonist); or by RNA interference with siRNA of PPAR-delta. The treatment effects on cell survival were evaluated with cell viability assay, life and dead cell staining and flow cytometry. Western blot analysis for PPAR-delta protein expression was also performed. The results showed that telmisartan (0-80 µm) dose-dependently reduced DU145 cell survival. Flow cytometry demonstrated cancer cell cycle arrest with increase of sub-G1 phase. GSK0660 partially but significantly restored the telmisartan-treated cell viability. Similarly, siRNA of PPAR-delta significantly reversed the telmisartan-induced apoptosis. Western blot showed that telmisartan significantly increased DU145 cell PPAR-delta protein expression. Co-incubation with siRNA of PPAR-delta inhibited the telmisartan effect of PPAR-delta up-regulation. In conclusion, telmisartan induces prostate cancer DU145 cells apoptosis through the up-regulation of PPAR-delta protein expression. Pharmacological inhibition or genetic silencing of PPAR-delta activity can both reverse the telmisartan-induced apoptotic effect. Thus the PPAR-delta pathway might be a potential target for the treatment of prostate cancer.
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31
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Miyajima A, Kosaka T, Kikuchi E, Oya M. Renin-angiotensin system blockade: Its contribution and controversy. Int J Urol 2015; 22:721-30. [PMID: 26032599 DOI: 10.1111/iju.12827] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 04/27/2015] [Indexed: 01/05/2023]
Abstract
Angiotensin II is a key biological peptide in the renin-angiotensin system that regulates blood pressure and renal hemodynamics, and extensive experimental studies have shown that angiotensin II promotes diverse fibrotic changes and induces neovascularization in several inflammatory diseases. It is known that angiotensin II can be controlled using renin-angiotensin system blockade when angiotensin II is the main factor inducing a particular disease, and renin-angiotensin system blockade has assumed a central role in the treatment of inflammatory nephritis, cardiovascular disorders and retinopathy. In contrast, renin-angiotensin system blockade was found to have not only these effects but also other functions, such as inhibition of cancer growth, angiogenesis and metastasis. Numerous studies have sought to elucidate the mechanisms and support these antitumor effects. However, a recent meta-analysis showed that renin-angiotensin system blockade use might in fact increase the incidence of cancer, so renin-angiotensin system blockade use has become somewhat controversial. Although the renin-angiotensin system has most certainly made great contributions to experimental models and clinical practice, some issues still need to be resolved. The present review discusses the contribution and controversy surrounding the renin-angiotensin system up to the present time.
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Affiliation(s)
- Akira Miyajima
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Takeo Kosaka
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Eiji Kikuchi
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Mototsugu Oya
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
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Lack of an association between angiotensin receptor blocker based therapy and increased risk of cancer: evidence from large observational studies. PLoS One 2015; 10:e0119775. [PMID: 25790107 PMCID: PMC4366349 DOI: 10.1371/journal.pone.0119775] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 02/03/2015] [Indexed: 12/25/2022] Open
Abstract
Background A previous meta-analysis of randomized controlled studies that were not designed to investigate cancer as a primary outcome suggested that ARB-based therapy is associated with increased risk of cancer; however, results of recent observational studies considering the association have been contradictory. This study sought to evaluate the association between angiotensin receptor blocker (ARB)-based therapy and risk of cancer by conducting a meta-analysis of observational studies. Methods Relevant articles published before February 2014 were identified by searching PubMed and the Cochrane Library. Pooled relative risks (RRs) were determined using a random effects model and were used to assess the strength of association between use of ARB-based therapy and risk of cancer. Results Six retrospective cohort studies involving a total of 3,827,109 participants and four case-control studies involving a total of 193,029 cases were included. The present study found that ARB-based therapy was not significantly associated with an increased risk of cancer (RR = 0.87, 95%CI: [0.75, 1.01]). However, an analysis including only cohort studies suggested a significantly decreased risk of cancer among individuals with any history of ARB use as compared to those with no history of ARB use (RR = 0.80, 95%CI: [0.55, 0.95]); no significant association was found between ARB use and risk of cancer when the case-control studies were separately considered (RR = 1.03, 95%CI: [0.93, 1.13]). Subgroup analyses showed that use of ARB-based therapy was associated with decreased risk of lung cancer (RR = 0.81, 95%CI: [0.69, 0.94]); however, no significant associations were found with the other cancer sites investigated. Furthermore, no association was observed upon adjustment by type of ARB drug. No publication bias was detected. Conclusion Overall, ARB-based therapy was not associated with increased risk of cancer. However, its use may be related to decreased incidence of lung cancer; this finding should be considered carefully and confirmed with further studies.
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Lee LD, Mafura B, Lauscher JC, Seeliger H, Kreis ME, Gröne J. Antiproliferative and apoptotic effects of telmisartan in human colon cancer cells. Oncol Lett 2014; 8:2681-2686. [PMID: 25360175 PMCID: PMC4214397 DOI: 10.3892/ol.2014.2592] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Accepted: 06/05/2014] [Indexed: 11/29/2022] Open
Abstract
Telmisartan is an angiotensin I (AT1) receptor blocker used in the treatment of essential hypertension, with partial peroxisome proliferator-activated receptor γ (PPARγ) agonism. In prior studies, PPARγ activation led to apoptosis and cell cycle inhibition in various cancer cells. The aim of the present study was to investigate the potential antiproliferative and apoptotic effects of telmisartan by partially activating PPARγ. HT-29, SW-480 and SW-620 cells were incubated with telmisartan (0.2–5 μM) or the full agonist, pioglitazone (0.2–5.0 μM). The antiproliferative and apoptotic effects of telmisartan in the human colon cancer cells were significant at therapeutic serum concentrations, and telmisartan exhibited a potency at least equivalent to the full PPARγ agonist, pioglitazone. The antiproliferative and apoptotic effects of pioglitazone in the human colon cancer cells were not completely deregulated by PPARγ blockade with GW9662. In the telmisartan-treated cells, PPARγ blockade resulted in an increased antiproliferative and apoptotic effect. These effects are not entirely explained by PPARγ activation, however, possible hypotheses that require further experimental investigation are as follows: i) Ligand-independent PPARγ activation through the activation-function 1 domain; ii) a PPARγ-independent mechanism; or iii) independent antiproliferative and apoptotic effects through GW9662.
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Affiliation(s)
- Lucas D Lee
- Department of General, Visceral and Vascular Surgery, Campus Benjamin Franklin, Charité-University of Medicine Berlin, Berlin D-12203, Germany
| | - Benjamin Mafura
- Department of General, Visceral and Vascular Surgery, Campus Benjamin Franklin, Charité-University of Medicine Berlin, Berlin D-12203, Germany
| | - Johannes C Lauscher
- Department of General, Visceral and Vascular Surgery, Campus Benjamin Franklin, Charité-University of Medicine Berlin, Berlin D-12203, Germany
| | - Hendrik Seeliger
- Department of General, Visceral and Vascular Surgery, Campus Benjamin Franklin, Charité-University of Medicine Berlin, Berlin D-12203, Germany
| | - Martin E Kreis
- Department of General, Visceral and Vascular Surgery, Campus Benjamin Franklin, Charité-University of Medicine Berlin, Berlin D-12203, Germany
| | - Jörn Gröne
- Department of General, Visceral and Vascular Surgery, Campus Benjamin Franklin, Charité-University of Medicine Berlin, Berlin D-12203, Germany
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de Araújo Júnior RF, Leitão Oliveira ALCS, de Melo Silveira RF, de Oliveira Rocha HA, de França Cavalcanti P, de Araújo AA. Telmisartan induces apoptosis and regulates Bcl-2 in human renal cancer cells. Exp Biol Med (Maywood) 2014; 240:34-44. [PMID: 25125501 DOI: 10.1177/1535370214546267] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
It has been well-characterized that the renin-angiotensin system (RAS) physiologically regulates systemic arterial pressure. However, RAS signaling has also been shown to increase cell proliferation during malignancy, and angiotensin receptor blockers (ARBs) are able to decrease pro-survival signaling by inhibiting anti-apoptotic molecules and suppressing caspase activity. In this study, the apoptotic effects of telmisartan, a type of ARB, was evaluated using a non-cancerous human renal cell line (HEK) and a human renal cell carcinoma (RCC) cell line (786). Both types of cells were treated with telmisartan for 4 h, 24 h, and 48 h, and then were assayed for levels of apoptosis, caspase-3, and Bcl-2 using MTT assays, flow cytometry, and immunostaining studies. Analysis of variance was used to identify significant differences between these data (P < 0.05). Following the treatment of 786 cells with 100 µM and 200 µM telmisartan, a marked inhibition of cell proliferation was observed. 50 µM cisplatin also caused high inhibition of these cells. Moreover, these inhibitions were both concentration- and time-dependent (P < 0.05). Various apoptotic effects were also observed compared with control cells at the 24 h and 48 h timepoints assayed (P < 0.001). Furthermore, positive caspase-3 staining and down-regulation of Bcl-2 were detected, consistent with induction of cell death. In contrast, treatment of HEK cells with telmisartan did not produce an apoptotic effect compared with control cells at the 24 h timepoint (P > 0.05). Treatment with cisplatin promoted in HEK cells high index of apoptosis (P < 0.001). Taken together, these results suggest that telmisartan induces apoptosis via down-regulation of Bcl-2 and involvement of caspase-3 in human RCC cells.
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Affiliation(s)
- Raimundo Fernandes de Araújo Júnior
- Post Graduation Program Health Science, Department of Medicine, UFRN, Natal, RN, Cep: 59078-970, Brazil Post Graduation Program in Functional and Structural Biology, Department of Morphology, UFRN, Natal, RN, Cep: 59078-970, Brazil
| | - Ana Luiza C S Leitão Oliveira
- Post Graduation Program in Pharmaceutical Science, Department of Biophysics and Pharmacology, UFRN, Natal, RN, Cep: 59078-970, Brazil
| | | | | | | | - Aurigena Antunes de Araújo
- Post Graduation Program in Public Health/Post Graduation Program in Pharmaceutical Science, Department of Biophysics and Pharmacology, UFRN, Natal, RN, Cep: 59078-970, Brazil
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Alhusban A, Al-Azayzih A, Goc A, Gao F, Fagan SC, Somanath PR. Clinically relevant doses of candesartan inhibit growth of prostate tumor xenografts in vivo through modulation of tumor angiogenesis. J Pharmacol Exp Ther 2014; 350:635-45. [PMID: 24990940 DOI: 10.1124/jpet.114.216382] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Angiotensin II receptor type 1 blockers (ARBs), widely used antihypertensive drugs, have also been investigated for their anticancer effects. The effect of ARBs on prostate cancer in experimental models compared with meta-analysis data from clinical trials is conflicting. Whereas this discrepancy might be due to the use of supratherapeutic doses of ARBs in cellular and animal models as compared with the clinical doses used in human trials, further investigation of the effects of clinical doses of ARBs on prostate cancer in experimental models is warranted. In the current study, we sought to determine the effects of candesartan on prostate cancer cellular function in vitro and tumor growth in vivo, and characterize the underlying mechanisms. Our analysis indicated that clinically relevant doses of candesartan significantly inhibited growth of PC3 cell tumor xenografts in mice. Interestingly, the same concentrations of candesartan actually promoted prostate cancer cellular function in vitro, through a modest but significant inhibition in apoptosis. Inhibition of tumor growth by candesartan was associated with a decrease in vascular endothelial growth factor (VEGF) expression in tumors and inhibition of tumor angiogenesis, but normalization of tumor vasculature. Although candesartan did not impair PC3 cell viability, it inhibited endothelial-barrier disruption by tumor-derived factors. Furthermore, candesartan significantly inhibited expression of VEGF in PC3 and DU145 cell lines independent of angiotensin II type 2 receptor, but potentially via angiotensin II type 1 receptor inhibition. Our findings clearly demonstrate the therapeutic potential of candesartan for prostate cancer and establish a link between ARBs, VEGF expression, and prostate tumor angiogenesis.
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Affiliation(s)
- Ahmed Alhusban
- Program in Clinical and Experimental Therapeutics, University of Georgia College of Pharmacy and the Charlie Norwood VA Medical Center, Augusta, Georgia (A.A., A.A.-A., A.G., F.G., S.C.F., P.R.S.); Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan (A.A.); and Departments of Neurology (S.C.F.), Medicine (P.R.S.), Cancer Center (P.R.S.), and Vascular Biology Center (P.R.S.), Georgia Regents University, Augusta, Georgia
| | - Ahmad Al-Azayzih
- Program in Clinical and Experimental Therapeutics, University of Georgia College of Pharmacy and the Charlie Norwood VA Medical Center, Augusta, Georgia (A.A., A.A.-A., A.G., F.G., S.C.F., P.R.S.); Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan (A.A.); and Departments of Neurology (S.C.F.), Medicine (P.R.S.), Cancer Center (P.R.S.), and Vascular Biology Center (P.R.S.), Georgia Regents University, Augusta, Georgia
| | - Anna Goc
- Program in Clinical and Experimental Therapeutics, University of Georgia College of Pharmacy and the Charlie Norwood VA Medical Center, Augusta, Georgia (A.A., A.A.-A., A.G., F.G., S.C.F., P.R.S.); Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan (A.A.); and Departments of Neurology (S.C.F.), Medicine (P.R.S.), Cancer Center (P.R.S.), and Vascular Biology Center (P.R.S.), Georgia Regents University, Augusta, Georgia
| | - Fei Gao
- Program in Clinical and Experimental Therapeutics, University of Georgia College of Pharmacy and the Charlie Norwood VA Medical Center, Augusta, Georgia (A.A., A.A.-A., A.G., F.G., S.C.F., P.R.S.); Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan (A.A.); and Departments of Neurology (S.C.F.), Medicine (P.R.S.), Cancer Center (P.R.S.), and Vascular Biology Center (P.R.S.), Georgia Regents University, Augusta, Georgia
| | - Susan C Fagan
- Program in Clinical and Experimental Therapeutics, University of Georgia College of Pharmacy and the Charlie Norwood VA Medical Center, Augusta, Georgia (A.A., A.A.-A., A.G., F.G., S.C.F., P.R.S.); Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan (A.A.); and Departments of Neurology (S.C.F.), Medicine (P.R.S.), Cancer Center (P.R.S.), and Vascular Biology Center (P.R.S.), Georgia Regents University, Augusta, Georgia
| | - Payaningal R Somanath
- Program in Clinical and Experimental Therapeutics, University of Georgia College of Pharmacy and the Charlie Norwood VA Medical Center, Augusta, Georgia (A.A., A.A.-A., A.G., F.G., S.C.F., P.R.S.); Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan (A.A.); and Departments of Neurology (S.C.F.), Medicine (P.R.S.), Cancer Center (P.R.S.), and Vascular Biology Center (P.R.S.), Georgia Regents University, Augusta, Georgia
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Koyama N, Nishida Y, Ishii T, Yoshida T, Furukawa Y, Narahara H. Telmisartan induces growth inhibition, DNA double-strand breaks and apoptosis in human endometrial cancer cells. PLoS One 2014; 9:e93050. [PMID: 24667764 PMCID: PMC3965508 DOI: 10.1371/journal.pone.0093050] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 02/28/2014] [Indexed: 12/17/2022] Open
Abstract
Telmisartan, an angiotensin II receptor type 1 blocker, is often used as an antihypertension drug, and it has also been characterized as a peroxisome proliferator-activated receptor-gamma (PPARγ) ligand. The purpose of this study was to elucidate the antitumor effects of telmisartan on endometrial cancer cells. We treated three endometrial cancer cell lines with various concentrations of telmisartan, and we investigated the effects of the telmisartan on the cell proliferation, apoptosis, and their related measurements in vitro. We also administered telmisartan to nude mice with experimental tumors to determine its in vivo effects and toxicity. All three endometrial cancer cell lines were sensitive to the growth-inhibitory effect of telmisartan. The induction of apoptosis was confirmed in concert with the altered expression of genes and proteins related to the apoptosis. We also observed that DNA double-strand breaks (DSBs) were induced in HHUA (human endometrial cancer) cells by telmisartan treatment. In addition, experiments in nude mice showed that telmisartan significantly inhibited human endometrial tumor growth, without toxic side effects. Our results suggest that telmisartan might be a new therapeutic option for the treatment of endometrial cancers.
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Affiliation(s)
- Naoko Koyama
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita, Japan
| | - Yoshihiro Nishida
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita, Japan
- * E-mail:
| | - Terukazu Ishii
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita, Japan
| | - Toshie Yoshida
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita, Japan
| | - Yuichi Furukawa
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita, Japan
| | - Hisashi Narahara
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita, Japan
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Patil SP, Ballester PJ, Kerezsi CR. Prospective virtual screening for novel p53–MDM2 inhibitors using ultrafast shape recognition. J Comput Aided Mol Des 2014; 28:89-97. [DOI: 10.1007/s10822-014-9732-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 02/11/2014] [Indexed: 01/21/2023]
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Kaur M, Bhatia RK, Pissurlenkar RR, Coutinho EC, Jain UK, Katare OP, Chandra R, Madan J. Telmisartan complex augments solubility, dissolution and drug delivery in prostate cancer cells. Carbohydr Polym 2014; 101:614-22. [DOI: 10.1016/j.carbpol.2013.09.077] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 09/05/2013] [Accepted: 09/23/2013] [Indexed: 12/21/2022]
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