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https://www.readbyqxmd.com/read/28727371/mir-483-5p-promotes-prostate-cancer-cell-proliferation-and-invasion-by-targeting-rbm5
#1
Zhi-Gang Yang, Xu-Dong Ma, Zhao-Hui He, Ying-Xin Guo
OBJECTIVE: miR-483-5p has been identified as a miRNA oncogene in certain cancers. However, its role in prostate cancer has not been sufficiently investigated. In this study, we investigated the role of miR-483-5p in prostate cancer and examined RBM5 regulation by miR-483-5p. MATERIAL AND METHODS: Expression levels of miR-483-5p were determined by quantitative real-time PCR. The effect of miR-483-5p on proliferation was evaluated by MTT assay, cell invasion was evaluated by trans-well invasion assays, and target protein expression was determined by western blotting in LNCaP, DU-145, and PC-3 cells...
June 14, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28718667/hydroxytyrosol-induces-apoptosis-and-cell-cycle-arrest-and-suppresses-multiple-oncogenic-signaling-pathways-in-prostate-cancer-cells
#2
Haseeb Zubair, Arun Bhardwaj, Aamir Ahmad, Sanjeev Kumar Srivastava, Mohammad Aslam Khan, Girijesh Kumar Patel, Seema Singh, Ajay Partap Singh
SCOPE: Hydroxytyrosol (HT), a polyphenol from olives, is a potential anticancer agent. This study was designed to evaluate the anticancer activity of HT against prostate cancer cells, and the mechanism thereof. METHODS AND RESULTS: Treatment of LNCaP and C4-2 prostate cancer cells with HT resulted in a dose-dependent inhibition of proliferation. This was in contrast to HT's ineffectiveness against normal prostate epithelial cells RWPE1 and PWLE2, suggesting cancer-cell-specific effect...
July 18, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28717648/response-detection-of-castrate-resistant-prostate-cancer-to-clinically-utilised-and-novel-treatments-by-monitoring-phospholipid-metabolism
#3
Tim A D Smith, Su M Phyu, Kholoud S Alzyoud, Chih-Chung Tseng
Androgen receptor (AR) activation is the primary driving factor in prostate cancer which is initially responsive to castration but then becomes resistant (castration-resistant prostate cancer (CRPC)). CRPC cells still retain the functioning AR which can be targeted by other therapies. A recent promising development is the use of inhibitors (Epi-1) of protein-protein interaction to inhibit AR-activated signalling. Translating novel therapies into the clinic requires sensitive early response indicators. Here potential response markers are explored...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28711733/expression-and-purification-of-tat-ndrg2-recombinant-protein-and-evaluation-of-its-anti-proliferative-effect-on-lncap-cell-line
#4
Fahimeh Farokhinejad, Abbas Behzad Behbahani, Gholam Reza Rafiei Dehbidi, Mohammad Ali Takhshid
N-myc downstream regulated gene2 (NDRG2) belongs to tumor suppressor protein family of NDRG. Anti-proliferative and anti-metastasis of NDRG2 overexpression has been demonstrated in a number of tumors. The aim of this study was to fuse the gene of Trans Activator of Transcription (TAT) protein transduction domain with NDRG2 gene and express and purify TAT-NDRG2 fusion protein in order to investigate the effects of TAT-NDRG2 protein on proliferation and apoptosis of LNCaP prostate carcinoma cell line. pET28a-TAT-NDRG2 and pET28a-NDRG2 plasmids were constructed and transformed into E...
July 13, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28709945/punicalagin-a-polyphenol-from-pomegranate-fruit-induces-growth-inhibition-and-apoptosis-in-human-pc-3-and-lncap-cells
#5
Oluwatosin Adaramoye, Bettina Erguen, Bianca Nitzsche, Michael Höpfner, Klaus Jung, Anja Rabien
Prostate cancer (PCa) is an international health problem and search for its effective treatment is in progress. Punicalagin (PN), polyphenol from pomegranate fruit, is known to exhibit potent anticancer activity in lung, breast and cervical cells. However, there is paucity of information on its effect in PCa. This study evaluated anti-proliferative effects of PN and its effects on extrinsic pathway of apoptosis in PCa cells, and angiogenesis in chicken chorioallantoic membrane (CAM). Antioxidant activities of PN were determined by 2,2-diphenyl-1-picryhydrazyl (DPPH) radical scavenging and inhibition of lipid peroxidation (LPO) methods...
July 11, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28708672/artemisinin-disrupts-androgen-responsiveness-of-human-prostate-cancer-cells-by-stimulating-the-26s-proteasome-mediated-degradation-of-the-androgen-receptor-protein
#6
Andrea M Steely, Jamin A Willoughby, Shyam N Sundar, Vasiliki I Aivaliotis, Gary L Firestone
Androgen receptor (AR) expression and activity is highly linked to the development and progression of prostate cancer and is a target of therapeutic strategies for this disease. We investigated whether the antimalarial drug artemisinin, which is a sesquiterpene lactone isolated from the sweet wormwood plant Artemisia annua, could alter AR expression and responsiveness in cultured human prostate cancer cell lines. Artemisinin treatment induced the 26S proteasome-mediated degradation of the receptor protein, without altering AR transcript levels, in androgen-responsive LNCaP prostate cancer cells or PC-3 prostate cancer cells expressing exogenous wild-type AR...
July 13, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28705714/aristeromycin-and-dznep-cause-growth-inhibition-of-prostate-cancer-via-induction-of-mir-26a
#7
Noriko Uchiyama, Yukiya Tanaka, Tomohiro Kawamoto
Most prostate cancers initially respond to androgen deprivation therapy, but then progress from androgen-dependent to androgen-independent prostate cancers. In the present study, a differential cytotoxicity screen of hormone-resistant prostate cancer LNCaP-hr cells and the parental LNCaP-FGC cells against normal MRC5 fibroblast cells, identified a small molecule compound, Aristeromycin (a derivative of 3-deazaneplanocin A (DZNeP)). The molecular target was shown to be S-adenosylhomocysteine hydrolase (AHCY), which catalyzes reversible hydrolysis of S-adenosylhomocysteine (SAH) to adenosine and L-homocysteine...
July 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28701587/prostate-cancer-diagnosis-using-epigenetic-biomarkers-3d-high-content-imaging-and-probabilistic-cell-by-cell-classifiers
#8
Darko Stefanovski, George Tang, Kolja Wawrowsky, Raymond C Boston, Nils Lambrecht, Jian Tajbakhsh
BACKGROUND: Prostate cancer (PCa) management can benefit from novel concepts/biomarkers for reducing the current 20-30% chance of false-negative diagnosis with standard histopathology of biopsied tissue. METHOD: We explored the potential of selected epigenetic markers in combination with validated histopathological markers, 3D high-content imaging, cell-by-cell analysis, and probabilistic classification in generating novel detailed maps of biomarker heterogeneity in patient tissues, and PCa diagnosis...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28693177/low-expression-of-microrna-30c-promotes-prostate-cancer-cells-invasion-involved-in-downregulation-of-kras-protein
#9
Jun Zhang, Xilong Wang, Yangyun Wang, Ruixian Peng, Zhiyuan Lin, Yang Wang, Bo Hu, Jifeng Wang, Guowei Shi
Aberrant microRNA expression is associated with tumor development. The present study aimed to elucidate the role of miR-30c in the development of prostate cancer. Quantitative polymerase chain reaction was performed to compare miR-30c expression in LNCaP, DU145, PC-3 and RWPE-1 cell lines. Lentivirus expressing miR-30c was used to create stable overexpression cell lines to investigate the effects of miR-30c overexpression on cell proliferation, migration and invasion, which were determined in the prostate cancer cell line PC-3 by MTT, colony formation, wound healing and Transwell assays...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28684116/cd147-induced-cell-proliferation-is-associated-with-smad4-signal-inhibition
#10
Hui Qin, Azhar Rasul, Xin Li, Muqaddas Masood, Guang Yang, Na Wang, Wei Wei, Xi He, Nobumoto Watanabe, Jiang Li, Xiaomeng Li
CD147 is a multifunctional trans-membrane glycoprotein, which is highly expressed in many cancers. However, the mechanism by which CD147 modulates cell proliferation is not fully understood. The aim of this study is to investigate the role of CD147 in cell proliferation associated with the TGF-β/Smad4 signaling pathway. Here, we used cell viability and clone formation assays in LNCaP prostate cancer cells to demonstrate that CD147 promotes cell proliferation. The luciferase assay and western blotting show that silencing CD147 using shRNA enhances transcription and expression of p21(WAF1)...
July 3, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28678239/quantitative-and-correlative-biodistribution-analysis-of-89-zr-labeled-mesoporous-silica-nanoparticles-intravenously-injected-into-tumor-bearing-mice
#11
Larissa Kramer, Gordon Winter, Benjamin Baur, Andrea J Kuntz, Thomas Kull, Christoph Solbach, Ambros J Beer, Mika Lindén
The biodistribution of (89)Zr-labeled mesoporous silica nanoparticles (MSNs) was evaluated in detail using a prostate cancer mouse model bearing LNCaP C4-2 and PC-3 tumor xenografts with focus on passive targeting. PEGylation of radiolabeled MSNs significantly improved the blood circulation times and radically enhanced the accumulation in tumors comparable to the accumulation levels previously reported for similar but actively targeted particles. The distribution of the passively targeted MSNs was related to the degree of vascularization of the tumors and did not follow the trends observed in vitro...
July 13, 2017: Nanoscale
https://www.readbyqxmd.com/read/28677813/anticancer-and-apoptosis%C3%A2-inducing-effects-of-quercetin-in-vitro-and-in-vivo
#12
Mahmoud Hashemzaei, Amin Delarami Far, Arezoo Yari, Reza Entezari Heravi, Kaveh Tabrizian, Seyed Mohammad Taghdisi, Sarvenaz Ekhtiari Sadegh, Konstantinos Tsarouhas, Dimitrios Kouretas, George Tzanakakis, Dragana Nikitovic, Nikita Yurevich Anisimov, Demetrios A Spandidos, Aristides M Tsatsakis, Ramin Rezaee
The present study focused on the elucidation of the putative anticancer potential of quercetin. The anticancer activity of quercetin at 10, 20, 40, 80 and 120 µM was assessed in vitro by MMT assay in 9 tumor cell lines (colon carcinoma CT‑26 cells, prostate adenocarcinoma LNCaP cells, human prostate PC3 cells, pheocromocytoma PC12 cells, estrogen receptor‑positive breast cancer MCF‑7 cells, acute lymphoblastic leukemia MOLT‑4 T‑cells, human myeloma U266B1 cells, human lymphoid Raji cells and ovarian cancer CHO cells)...
June 28, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28671672/deregulation-of-micrornas-mediated-control-of-carnitine-cycle-in-prostate-cancer-molecular-basis-and-pathophysiological-consequences
#13
A Valentino, A Calarco, A Di Salle, M Finicelli, S Crispi, R A Calogero, F Riccardo, A Sciarra, A Gentilucci, U Galderisi, S Margarucci, G Peluso
Cancer cells reprogram their metabolism to maintain both viability and uncontrolled proliferation. Although an interplay between the genetic, epigenetic and metabolic rewiring in cancer is beginning to emerge, it remains unclear how this metabolic plasticity occurs. Here, we report that in prostate cancer cells (PCCs) microRNAs (miRNAs) greatly contribute to deregulation of mitochondrial fatty acid (FA) oxidation via carnitine system modulation. We provide evidence that the downregulation of hsa-miR-124-3p, hsa-miR-129-5p and hsa-miR-378 induced an increase in both expression and activity of CPT1A, CACT and CrAT in malignant prostate cells...
July 3, 2017: Oncogene
https://www.readbyqxmd.com/read/28671312/anti-prostate-cancer-potential-of-gossypetin-via-inducing-apoptotic-and-autophagic-cell-death
#14
Ming-Shih Lee, Chia-Wen Tsai, Chi-Ping Wang, Jing-Hsien Chen, Hui-Hsuan Lin
Gossypetin (GTIN), a naturally occurring hexahydroxy flavone, has been shown to possess antimutagenic, antioxidant, antimicrobial, and antiatherosclerotic effects. Here, we investigated the mechanism(s) underlying the anticancer potential of GTIN. In this study investigations were showed that GTIN preferentially induces programmed cell death of prostate cancer (PCa) cells in vitro and in vivo. MTT data showed that GTIN exhibited the anti-proliferation effect on human PCa cells in a dose- and time-dependent manner...
July 3, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28670515/crab-shell-extract-induces-prostate-cancer-cell-line-lncap-apoptosis-and-decreases-nitric-oxide-secretion
#15
Leila Rezakhani, Mohammad Rasool Khazaei, Ali Ghanbari, Mozafar Khazaei
OBJECTIVE: Prostate cancer is the second most common cancer worldwide. Chemotherapeutic agents have been shown to have adverse side-effects, and natural compounds have been recommended for cancer treatment, nowadays. Crab shell has been shown to have cancer preventative and suppressive effects in vivo and in vitro. The aim of present study was to investigate the effect of crab shell extract on prostate cancer cell line (LNcap) in vitro. MATERIALS AND METHODS: In this in vitro experimental study, LNcap cells were treated with different concentrations (0, 100, 200, 400, 800 and 1000 µg/ml) of crab shell hydroalcoholic extract in three different culture periods (24, 48 and 72 hours)...
July 2017: Cell Journal
https://www.readbyqxmd.com/read/28668854/pca3-silencing-sensitizes-prostate-cancer-cells-to-enzalutamide-mediated-androgen-receptor-blockade
#16
Emre Özgür, Ayca Iribas Celik, Emin Darendeliler, Ugur Gezer
BACKGROUND/AIM: Prostate cancer (PCa) is an androgen-dependent disease. Novel anti-androgens (i.e. enzalutamide) have recently been developed for the treatment of patients with metastatic castration-resistant prostate cancer (CRPC). Evidence is accumulating that prostate cancer antigen 3 (PCA3) is involved in androgen receptor (AR) signaling. Here, in combination with enzalutamide-mediated AR blockade, we investigated the effect of PCA3 targeting on the viability of PCa cells. MATERIALS AND METHODS: In hormone-sensitive LNCaP cells, AR-overexpressing LNCaP-AR(+) cells and VCaP cells (representing CRPC), PCA3 was silenced using siRNA oligonucleotides...
July 2017: Anticancer Research
https://www.readbyqxmd.com/read/28667662/synthesis-and-evaluation-of-novel-thiazole-based-derivatives-as-selective-inhibitors-of-dna-binding-domain-of-the-androgen-receptor
#17
Ruixue Xu, Ye Tian, Shenzhen Huang, Jiang Yu, Yufang Deng, Miao Zhan, Tao Zhang, Fangying Wang, Lifeng Zhao, Yuanwei Chen
A series of thiazole-based inhibitors selectively targeting DNA-binding domain of the androgen receptor (AR) were synthesized, evaluated and the SAR data were summarized. We identified a novel compound SKLB-C2807 that effectively inhibited the human prostate cancer cell line LNCaP/AR with the IC50 value of 0.38 μM without significant antiproliferative effects on other cell lines PC-3 (AR-negative), SW620, MCF-7 (ER-positive) and L-O2 (non-cancerous). This compound also considerably decreased the expression of prostate-specific antigen (PSA)...
July 1, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28666860/novel-4-acetamide-2-alkylthio-n-acetanilides-resembling-nimesulide-synthesis-cell-viability-evaluation-and-in-silico-studies
#18
Mafalda Catarro, João Serrano, Eunice Cavalheiro, Susana Ramos, Adriana O Santos, Samuel Silvestre, Paulo Almeida
Since nimesulide, a nonsteroidal anti-inflammatory drug, is known to be a selective inhibitor of cyclooxygenase-2 and shows activity against cancer cells, there has been much interest in developing related molecules with enhanced anticancer properties. Taking in consideration structural features of nimesulide analogues ten new ortho-(akylthio)-N-alkylacetanilides were synthesized and fully characterized. The antiproliferative effect of these acetanilides was evaluated against human breast (MCF-7) and prostate (LNCaP) cancer cell lines as well as normal human dermal fibroblasts (NHDF)...
June 16, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28655783/inhibition-of-androgen-receptor-nuclear-localization-and-castration-resistant-prostate-tumor-growth-by-pyrroloimidazole-based-small-molecules
#19
Khalid Z Masoodi, Yadong Xu, Javid A Dar, Kurtis Eisermann, Laura E Pascal, Erica Parrinello, Junkui Ai, Paul A Johnston, Joel B Nelson, Peter Wipf, Zhou Wang
The androgen receptor (AR) is a ligand-dependent transcription factor that controls the expression of androgen-responsive genes.  A key step in androgen action, which is amplified in castration resistant prostate cancer (CRPC), is AR nuclear translocation. Small molecules capable of inhibiting AR nuclear localization could be developed as novel therapeutics for CRPC. We developed a high throughput screen and identified two structurally-related pyrroloimidazoles that could block AR nuclear localization in CRPC cells...
June 27, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28653900/overexpression-of-wdfy2-inhibits-prostate-cancer-cell-growth-and-migration-via-inactivation-of-akt-pathway
#20
Jianqing Wang, Xu Chen, Shijun Tong, Huihui Zhou, Jianliang Sun, Yuancheng Gou, Fei Wu, Jimeng Hu, Jianfeng Xu, Guanxiong Ding
Prostate cancer is the most commonly diagnosed malignancy and is the second leading deadly reason among male cancer. WDFY2, which is found to be a cancer-specific fusion gene with CDKN2D in ovarian cancer, is a new gene with unknown function in carcinogenesis. In this study, we investigated the role of WDFY2 in prostate cancer development. We examined WDFY2 expression in human prostate tissue specimens and prostate cancer cell lines BPH-1, LNCaP, PC3, and DU-145. Overexpression of WDFY2 was performed to evaluate the role of WDFY2 in cell proliferation, migration, and colony formation of prostate cancer cells...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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