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https://www.readbyqxmd.com/read/29048654/telmisartan-inhibits-hepatocellular-carcinoma-cell-proliferation-in-vitro-by-inducing-cell-cycle-arrest
#1
Kyoko Oura, Tomoko Tadokoro, Shintaro Fujihara, Asahiro Morishita, Taiga Chiyo, Eri Samukawa, Yoshimi Yamana, Koji Fujita, Teppei Sakamoto, Takako Nomura, Hirohito Yoneyama, Hideki Kobara, Hirohito Mori, Hisakazu Iwama, Keiichi Okano, Yasuyuki Suzuki, Tsutomu Masaki
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...
September 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29034589/involvement-of-local-renin-angiotensin-system-in-immunosuppression-of-tumor-microenvironment
#2
Kenta Nakamura, Tomonori Yaguchi, Gaku Ohmura, Asuka Kobayashi, Naoshi Kawamura, Takashi Iwata, Yukiko Kiniwa, Ryuhei Okuyama, Yutaka Kawakami
To improve the current cancer immunotherapies, strategies to modulate various immunosuppressive cells including myeloid derived suppressor cells (MDSCs) which were shown to be negative factors in the immune-checkpoint blockade therapy, need to be developed. In this study, we have evaluated the role of local renin-angiotensin system (RAS) in the tumor immune-microenvironment using murine models bearing tumor cell lines in which RAS was not involved in their proliferation and angiogenetic ability. Administration of angiotensin II receptor blockers (ARBs) to C57BL/6 mice bearing murine colon cancer cell line MC38 resulted in significant enhancement of tumor antigen gp70 specific T cells...
October 16, 2017: Cancer Science
https://www.readbyqxmd.com/read/28977968/antihypertensive-drug-use-and-breast-cancer-risk-a-meta-analysis-of-observational-studies
#3
Haibo Ni, Qin Rui, Xiaojue Zhu, Zhenquan Yu, Rong Gao, Huixiang Liu
We conducted a meta-analysis of observational studies to examine the hypothesized association between breast cancer and antihypertensive drug (AHT) use. Fixed- or random- effect models were used to calculate pooled risk ratios (RRs) and 95% confidence intervals (CIs) for all AHTs and individual classes (i.e., angiotensin-converting enzyme inhibitors, [ACEi]; angiotensin-receptor blockers, [ARBs]; calcium channel blockers, [CCBs]; beta-blockers, [BBs], and diuretics). Twenty-one studies with 3,116,266 participants were included...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28802138/inhibition-of-bioenergetic-metabolism-by-the-combination-of-metformin-and-2-deoxyglucose-highly-decreases-viability-of-feline-mammary-carcinoma-cells
#4
María Florencia Arbe, Chiara Fondello, Lucrecia Agnetti, Gabriel Martín Álvarez, Matías Nicolás Tellado, Gerardo Claudio Glikin, Liliana María Elena Finocchiaro, Marcela Solange Villaverde
Feline mammary carcinoma (FMC) is a highly aggressive pathology that has been proposed as an interesting model of breast cancer disease, especially for the hormone refractory subgroup. Recently, cancer cell metabolism has been described as a hallmark of cancer cells. Here, we investigate the effects and mechanism of metabolic modulation by metformin (MET, anti-diabetic drug), 2-deoxyglucose (2DG, hexokinase inhibitor) or a combination of both drugs, MET/2DG on two established FMC cells lines: AlRB (HER2 (3+) and Ki67<5%) and AlRATN (HER2 (-) and Ki67>15%)...
August 3, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28733551/antihypertensive-drug-use-and-breast-cancer-risk-a-meta-analysis-of-observational-studies
#5
Haibo Ni, Qin Rui, Xiaojue Zhu, Zhenquan Yu, Rong Gao, Huixiang Liu
We conducted a meta-analysis of observational studies to examine the hypothesized association between breast cancer and antihypertensive drug (AHT) use. Fixed- or random- effect models were used to calculate pooled risk ratios (RRs) and 95% confidence intervals (CIs) for all AHTs and individual classes (i.e., angiotensin-converting enzyme inhibitors, [ACEi]; angiotensin-receptor blockers, [ARBs]; calcium channel blockers, [CCBs]; beta-blockers, [BBs], and diuretics). Twenty-one studies with 3,116,266 participants were included...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28670881/ameliorative-effect-of-coenzyme-q10-and-or-candesartan-on-carboplatin-induced-nephrotoxicity-roles-of-apoptosis-transforming-growth-factor-%C3%AE-1-nuclear-factor-kappa-b-and-the-nrf2-ho-1-pathway
#6
Ahmed M Kabel, Abeer A Elkhoely
Background: Carboplatin is a drug that is used for treatment of many types of cancer. However, it may produce serious nephrotoxicity. Candesartan is angiotensin II receptor antagonist employed mainly for control of hypertension. Coenzyme Q10 (CoQ10) is a fat-soluble substance which was proven to have potent antioxidant and anti-inflammatory properties. Aim: Our aim was to study the effects of candesartan and/or CoQ10 on carboplatin-induced nephrotoxicity in mice. Methods: Sixty mice were divided into 6 equal groups: Control untreated; carboplatin; carboplatin + candesartan; carboplatin + CoQ10; carboplatin + carboxymethyl cellulose; and carboplatin + candesartan + CoQ10 group...
June 25, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28562314/repurposing-arbs-as-treatments-for-breast-cancer
#7
Amee J George, Andrew Allen, Ashwini L Chand
No abstract text is available yet for this article.
May 31, 2017: Aging
https://www.readbyqxmd.com/read/28535551/angiotensin-converting-enzyme-inhibitors-and-angiotensin-receptor-blockers-modulate-the-function-of-myelinated-fibers-after-chemotherapy-a-quantitative-sensory-testing-study
#8
Carlos J Roldan, Juhee Song, Mitchell P Engle, Patrick M Dougherty
BACKGROUND: Angiotensin-converting enzyme inhibitors (ACEI) and angiotensin receptor blockers (ARB) have sufficient scientific support for their use as tissue protectors. Preliminary studies suggest that their angiotensin-II type 2 receptor (AT2R)-blocking properties have a beneficial profile in the treatment of neuropathic pain. OBJECTIVES: The purpose of the current study was to quantify the extent of the somatosensory effects of ACEI and ARB in cancer patients with chemotherapy-induced peripheral neuropathy...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28529582/angiotensin-ii-receptor-blockers-induce-autophagy-in-prostate-cancer-cells
#9
Yunseo Woo, Yu-Jin Jung
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...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28474805/cldn8-an-androgen-regulated-gene-promotes-prostate-cancer-cell-proliferation-and-migration
#10
Daisaku Ashikari, Ken-Ichi Takayama, Daisuke Obinata, Satoru Takahashi, Satoshi Inoue
The proliferation of prostate cancer cells is controlled by the androgen receptor (AR) signaling pathway. However, the function of AR target genes has not been fully elucidated. In previous studies, we have identified global AR binding sites and AR target genes in prostate cancer cells. Here, we focused on Claudin 8 (CLDN8), a protein constituting tight junctions in cell membranes. We found one AR binding site in the promoter region and two functional androgen-responsive elements in the sequence. Reporter assay revealed that transcriptional activation of the CLDN8 promoter by androgen is dependent on these androgen-responsive elements...
July 2017: Cancer Science
https://www.readbyqxmd.com/read/28429090/impact-of-angiotensin-receptor-blocker-use-on-overall-survival-among-patients-undergoing-resection-for-pancreatic-cancer
#11
Marcelo Cerullo, Faiz Gani, Sophia Y Chen, Joseph K Canner, Timothy M Pawlik
BACKGROUND: Pancreatic cancer has higher concentrations of angiotensin II compared with other cancers. This study sought to assess the effect of angiotensin II receptor blockers (ARBs) on survival of patients undergoing resection using a large, nationally representative dataset. METHODS: Patients undergoing pancreatic cancer resection were identified in the Truven Health MarketScan database. Multivariable Cox proportional hazards regression was used to assess the effect of ARB use on overall survival...
September 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28416734/the-angiotensin-receptor-blocker-losartan-inhibits-mammary-tumor-development-and-progression-to-invasive-carcinoma
#12
Rhiannon Coulson, Seng H Liew, Angela A Connelly, Nicholas S Yee, Siddhartha Deb, Beena Kumar, Ana C Vargas, Sandra A O'Toole, Adam C Parslow, Ashleigh Poh, Tracy Putoczki, Riley J Morrow, Mariah Alorro, Kyren A Lazarus, Evie F W Yeap, Kelly L Walton, Craig A Harrison, Natalie J Hannan, Amee J George, Colin D Clyne, Matthias Ernst, Andrew M Allen, Ashwini L Chand
Drugs that target the Renin-Angiotensin System (RAS) have recently come into focus for their potential utility as cancer treatments. The use of Angiotensin Receptor Blockers (ARBs) and Angiotensin-Converting Enzyme (ACE) Inhibitors (ACEIs) to manage hypertension in cancer patients is correlated with improved survival outcomes for renal, prostate, breast and small cell lung cancer. Previous studies demonstrate that the Angiotensin Receptor Type I (AT1R) is linked to breast cancer pathogenesis, with unbiased analysis of gene-expression studies identifying significant up-regulation of AGTR1, the gene encoding AT1R in ER+ve/HER2-ve tumors correlating with poor prognosis...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28387887/the-renin-angiotensin-system-blockers-as-adjunctive-therapy-for-cancer-a-meta-analysis-of-survival-outcome
#13
X-Y Li, J-F Sun, S-Q Hu
OBJECTIVE: The renin-angiotensin system blockers (RASBs), including angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin II receptor blockers (ARBs), are widely used to reduce cardiovascular disease (CVD) events. Accumulating pre-clinical and clinical studies suggested that RASBs possesses anti-carcinogenic properties, and their use is associated with favorable outcomes in several type cancers. To conduct a meta-analysis to evaluate the effect of adjunctive therapy of renin-angiotensin system blockers combined with chemotherapeutic agents in cancer patients...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28192226/use-of-preventive-medication-in-patients-with-limited-life-expectancy-a-systematic-review
#14
REVIEW
Arjun Poudel, Patsy Yates, Debra Rowett, Lisa M Nissen
CONTEXT: Optimal prescribing in patients with limited life expectancy (LLE) remains unclear. OBJECTIVES: This study systematically reviews the published literature regarding the use of preventive medication in patients with reduced life expectancy. METHODS: A systematic literature search was conducted using three databases (MEDLINE, EMBASE, and CINAHL). Articles published in English from January 1995 to December 2015 were retrieved for analysis to identify peer-reviewed, observational studies assessing use of preventive medications in patients with LLE...
June 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28131779/relationship-between-drugs-affecting-the-renin-angiotensin-system-and-colorectal-cancer-the-mcc-spain-study
#15
Trinidad Dierssen-Sotos, Inés Gómez-Acebo, Camilo Palazuelos, Francisco Rodriguez-Moranta, Beatriz Pérez-Gómez, José Pedro Fernández Vazquez, Pilar Amiano, Aurelio Barricarte, Benito Mirón-Pozo, Adonina Tardon, Rocío Capelo, Rosana Peiro Pérez, José María Huerta, Montserrat Andreu, Mª Ángeles Sierra, Carmen Castañón López, Irune Ruiz, Concepción Moreno-Iribas, Rocío Olmedo-Requena, Gemma Castaño-Vinyals, Nuria Aragonés, Manolis Kogevinas, Marina Pollán, Javier Llorca
The potential protective effect of renin-angiotensin system (RAS) inhibitors is a subject of increasing interest due to their possible role as chemopreventive agents against colorectal cancer (CRC). To evaluate this association, we conducted a case-control study with 2165 cases of colorectal cancer, diagnosed between 2007 and 2012, and 3912 population controls frequency matched (by age, sex and region) from the Spanish multicenter case-control study MCC-Spain. We found a significant protective effect of the angiotensin-converting enzyme Inhibitors (ACEIs) against CRC, limited to the under-65years group (OR=0...
January 26, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28079518/angiotensin-receptor-blockers-and-the-risk-of-cancer-data-mining-of-a-spontaneous-reporting-database-and-a-claims-database%C3%A2
#16
Mai Fujimoto, Migiwa Kanou, Kouichi Hosomi, Mitsutaka Takada
OBJECTIVE: The aim of this study was to examine the associations between angiotensin receptor blockers (ARBs) and the risk of 10 major cancers by employing different pharmacoepidemiological assessments. MATERIALS AND METHODS: Data from the first quarter of 2004 through 2012 were downloaded from the US Food and Drug Administration Adverse Event Reporting System (FAERS). The reporting odds ratio (ROR) and information component (IC) were used to detect the signals...
April 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28055971/src-promotes-castration-recurrent-prostate-cancer-through-androgen-receptor-dependent-canonical-and-non-canonical-transcriptional-signatures
#17
Indranil Chattopadhyay, Jianmin Wang, Maochun Qin, Lingqiu Gao, Renae Holtz, Robert L Vessella, Robert W Leach, Irwin H Gelman
Progression of prostate cancer (PC) to castration-recurrent growth (CRPC) remains dependent on sustained expression and transcriptional activity of the androgen receptor (AR). A major mechanism contributing to CRPC progression is through the direct phosphorylation and activation of AR by Src-family (SFK) and ACK1 tyrosine kinases. However, the AR-dependent transcriptional networks activated by Src during CRPC progression have not been elucidated. Here, we show that activated Src (Src527F) induces androgen-independent growth in human LNCaP cells, concomitant with its ability to induce proliferation/survival genes normally induced by dihydrotestosterone (DHT) in androgen-dependent LNCaP and VCaP cells...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28052030/the-angiotensin-ii-type-1-receptor-antagonist-telmisartan-inhibits-cell-proliferation-and-tumor-growth-of-esophageal-adenocarcinoma-via-the-ampk%C3%AE-mtor-pathway-in-vitro-and-in-vivo
#18
Shintaro Fujihara, Asahiro Morishita, Kana Ogawa, Tomoko Tadokoro, Taiga Chiyo, Kiyohito Kato, Hideki Kobara, Hirohito Mori, Hisakazu Iwama, Tsutomu Masaki
Telmisartan, a widely used antihypertensive drug, is an angiotensin II type 1 (AT1) receptor blocker (ARB). This drug inhibits cancer cell proliferation, but the underlying mechanisms in various cancers, including esophageal cancer, remain unknown. The aim of the present study was to evaluate the effects of telmisartan on human esophageal cancer cell proliferation in vitro and in vivo. We assessed the effects of telmisartan on human esophageal adenocarcinoma (EAC) cells using the cell lines OE19, OE33, and SKGT-4...
January 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28027584/interleukin-6-dependent-genomic-instability-heralds-accelerated-carcinogenesis-following-liver-regeneration-on-a-background-of-chronic-hepatitis
#19
Tali Lanton, Anat Shriki, Yael Nechemia-Arbely, Rinat Abramovitch, Orr Levkovitch, Revital Adar, Nofar Rosenberg, Mor Paldor, Daniel Goldenberg, Amir Sonnenblick, Amnon Peled, Stefan Rose-John, Eithan Galun, Jonathan H Axelrod
Liver cancer, which typically develops on a background of chronic liver inflammation, is now the second leading cause of cancer mortality worldwide. For patients with liver cancer, surgical resection is a principal treatment modality that offers a chance of prolonged survival. However, tumor recurrence after resection, the mechanisms of which remain obscure, markedly limits the long-term survival of these patients. We have shown that partial hepatectomy in multidrug resistance 2 knockout (Mdr2(-/-) ) mice, a model of chronic inflammation-associated liver cancer, significantly accelerates hepatocarcinogenesis...
May 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27965461/kras-mutant-colorectal-cancer-gene-signatures-identified-angiotensin-ii-receptor-blockers-as-potential-therapies
#20
Qing Wen, Philip D Dunne, Paul G O'Reilly, Gerald Li, Anthony J Bjourson, Darragh G McArt, Peter W Hamilton, Shu-Dong Zhang
Colorectal cancer (CRC) is a life-threatening disease with high prevalence and mortality worldwide. The KRAS oncogene is mutated in approximately 40% of CRCs. While antibody based EGFR inhibitors (cetuximab and panitumumab) represent a major treatment strategy for advanced KRAS wild type (KRAS-WT) CRCs, there still remains no effective therapeutic course for advanced KRAS mutant (KRAS-MT) CRC patients.In this study, we employed a novel and comprehensive approach of gene expression connectivity mapping (GECM) to identify candidate compounds to target KRAS-MT tumors...
January 10, 2017: Oncotarget
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