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Anti-cancer Drugs

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https://www.readbyqxmd.com/read/28799948/anticancer-drugs-and-the-regulation-of-hedgehog-genes-gli1-and-ptch1-a-comparative-study-in-nonmelanoma-skin-cancer-cell-lines
#1
Uffe H Olesen, Sophie Bojesen, Julie Gehl, Merete Haedersdal
Nonmelanoma skin cancer is the most common cancer in humans, comprising mainly basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). BCC proliferation is highly dependent on the Hedgehog signaling pathway. We aimed to investigate a panel of anticancer drugs with known activity against skin cancer for their therapeutic potential in localized, enhanced topical treatment of SCC and BCC. Cytotoxicity profiles for vismodegib, 5-fluorouracil (5-FU), methotrexate (MTX), cisplatin, bleomycin, and vorinostat were established in terms of half maximal inhibitory concentration values in a panel of immortalized keratinocytes (HaCaT), BCC (UWBCC1 and BCC77015), and SCC (A431 and SCC25) cell lines...
August 9, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28746057/solid-lipid-nanoparticles-improve-octyl-gallate-antimetastatic-activity-and-ameliorate-its-renal-and-hepatic-toxic-effects
#2
Clarissa A S Cordova, Claudriana Locatelli, Evelyn Winter, Adny H Silva, Betina G Zanetti-Ramos, Raquel Jasper, Alessandra Mascarello, Rosendo A Yunes, Ricardo J Nunes, Tânia B Creczynski-Pasa
Metastasis is the main cause of cancer-related death and requires the development of effective treatments with reduced toxicity and effective anticancer activity. Gallic acid derivatives have shown significant biological properties including antitumoral activity as shown in a previous study with octyl gallate (G8) in vitro. Thus, the aim of this work was to evaluate the antimetastatic effect of free and solid lipid nanoparticle-loaded G8 in mice in a lung metastasis model. Animals inoculated with melanoma cells presented metastasis in lungs, which was significantly inhibited by treatment with G8 and solid lipid nanoparticle-loaded G8, named G8-NVM...
July 25, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28727579/enhanced-anticancer-efficacy-of-histone-deacetyl-inhibitor-suberoylanilide-hydroxamic-acid-in-combination-with-a-phosphodiesterase-inhibitor-pentoxifylline-in-human-cancer-cell-lines-and-in-vivo-tumor-xenografts
#3
Saranya Nidhyanandan, Boreddy S Thippeswamy, Kottapalli B Chandrasekhar, Neetinkumar D Reddy, Nagaraj M Kulkarni, Kandasamy Karthikeyan, Farhin R Khan, Jayaprakash Raghul, Govindharajan Vijaykanth, Shridhar Narayanan
Vorinostat [suberoylanilide hydroxamic acid (SAHA)], a histone deacetylase inhibitor, shows limited clinical activity against solid tumors when used alone. The methyl xanthine drug, pentoxifylline (PENT), has been described to have antitumor properties. The aim of this study was to look for the enhanced anticancer activities of both agents when used in combination at doses lower than their respective efficacy dose when used alone. We investigated the antitumor potential of this novel combination in vitro and in vivo...
July 19, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28723868/screening-of-medicinal-plant-phytochemicals-as-natural-antagonists-of-p53-mdm2-interaction-to-reactivate-p53-functioning
#4
Muhammad Riaz, Usman A Ashfaq, Muhammad Qasim, Erum Yasmeen, Muhammad T Ul Qamar, Farooq Anwar
In most types of cancer, overexpression of murine double minute 2 (MDM2) often leads to inactivation of p53. The crystal structure of MDM2, with a 109-residue amino-terminal domain, reveals that MDM2 has a core hydrophobic region to which p53 binds as an amphipathic α helix. The interface depends on the steric complementarity between MDM2 and the hydrophobic region of p53. Especially, on p53's triad, amino acids Phe19, Trp23 and Leu26 bind to the MDM2 core. Results from studies suggest that the structural motif of both p53 and MDM2 can be attributed to similarities in the amphipathic α helix...
July 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28723867/prediction-of-severe-toxicity-in-adult-patients-under-treatment-with-5-fluorouracil-a-prospective-cohort-study
#5
Carolina Vázquez, María Orlova, Federico Angriman, José N Minatta, Paula Scibona, María A Verzura, Esteban G Jáuregui, Heidy Díaz de Arce, María G Pallotta, Waldo H Belloso
5-Fluorouracil (5-FU) has long been used for the treatment of gastrointestinal tumors harboring interindividual variability in both the pharmacokinetic and the pharmacogenetic profiles, which in turn may lead to life-threatening toxicities. We carried out a prospective cohort study of adult patients initiating treatment with 5-FU between 2013 and 2015. Primary exposures of interest were the methylenetetrahydrofolate reductase single nucleotide polymorphism in exons 4 and 7 and 5'-untranslated region-thymidylate synthase VNTR genotypes, in addition to baseline clinical and demographic variables...
July 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28723866/a-case-of-resistance-to-tyrosine-kinase-inhibitor-therapy-small-cell-carcinoma-transformation-concomitant-with-plasma-genotyped-t790m-positivity
#6
Yanjun Xu, Zhiyu Huang, Lei Gong, Yun Fan
Although non-small-cell lung cancer patients with epidermal growth factor receptor (EGFR) mutations are responsive to EGFR-tyrosine kinase inhibitors, drug resistances are always inevitable. The secondary somatic EGFR threonine-methionine substitution at position 790 (T790M) mutation accounts for ∼50% of acquired resistance mechanisms. Small cell lung cancer (SCLC) transformation is a relatively rare mechanism, but has recently attracted considerable attention. The coexistence of both the mechanisms in one patient is much more scarce in clinic...
July 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28723865/microrna-106b-5p-regulates-cisplatin-chemosensitivity-by-targeting-polycystic-kidney-disease-2-in-non-small-cell-lung-cancer
#7
Shaorong Yu, Xiaobing Qin, Tingting Chen, Leilei Zhou, Xiaoyue Xu, Jifeng Feng
Systemic therapy with cytotoxic agents remains one of the main treatment methods for non-small-cell lung cancer (NSCLC). Cisplatin is a commonly used chemotherapeutic agent, that, when combined with other drugs, is an effective treatment for NSCLC. However, effective cancer therapy is hindered by a patient's resistance to cisplatin. Unfortunately, the potential mechanism underlying such resistance remains unclear. In this study, we explored the mechanism of microRNA-106b-5p (miR-106b-5p), which is involved in the resistance to cisplatin in the A549 cell line of NSCLC...
July 18, 2017: Anti-cancer Drugs
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
#8
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/28704237/geraniin-inhibits-migration-and-invasion-of-human-osteosarcoma-cancer-cells-through-regulation-of-pi3k-akt-and-erk1-2-signaling-pathways
#9
Yanmao Wang, Daqian Wan, Runhua Zhou, Wanrun Zhong, Shengdi Lu, Yimin Chai
Geraniin, an active compound isolated from Geranium sibiricum, was found to inhibit proliferation and induce apoptosis of tumor cells. However, the antimetastatic effects of geraniin remain elusive. Our study found the potential antitumor mechanisms of geraniin through inhibiting the migration and invasion of human osteosarcoma U2OS cells. The western blot, gelatin zymography, and reversed transcription-PCR analysis showed that geraniin suppressed matrix metalloproteinase-9 (MMP-9) expression in a concentration-dependent manner...
July 12, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28704236/liver-x-receptors-agonist-t0901317-downregulates-matrix-metalloproteinase-9-expression-in-non-small-cell-lung-cancer-by-repressing-nuclear-factor-%C3%AE%C2%BAb
#10
Qiong-Ju Chen, Ying Shi, Jun-Feng Shi, Zhen-Hua Yuan, Ji-Yong Ma, Su-Rong Fang, Wei Gu
The liver X receptors (LXRs) is an important component of the nuclear receptor (NR) superfamily. Previous studies have shown that the LXRs possessed antitumor activity in various types of tumor cells. However, the complicated mechanisms underlying the antitumor activity remain largely unexplored. In this study, we incubated A549 cells with the compound T0901317, a specific LXRs agonist, for 24 h. The MTT assay was used to assess cell viability. Transwell assays were used to evaluate cell migration and invasion...
July 12, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28692437/codelivery-of-salinomycin-and-docetaxel-using-poly-d-l-lactic-co-glycolic-acid-poly-ethylene-glycol-nanoparticles-to-target-both-gastric-cancer-cells-and-cancer-stem-cells
#11
Lan Li, Dejun Cui, Limin Ye, Yu Li, Liyi Zhu, Lanqun Yang, Banjun Bai, Zhao Nie, Jie Gao, Yu Cao
Cancer stem cells (CSCs) in gastric cancer (GC) have been established recently as key therapeutic targets for the successful treatment of GC. Emerging evidence suggests that both CSCs and cancer cells should be eradicated to achieve optimal therapeutic efficacy. In the present study, salinomycin, which has been reported to kill CSCs, was used in combination with docetaxel, a chemotherapeutic drug that is used as first-line therapy in GC, to eradicate both GC stem cells (SCs) and cancer cells. Salinomycin and docetaxel were loaded separately into poly(D,L-lactic-co-glycolic acid)-poly(ethylene glycol) nanoparticles of ∼140 nm with a narrow size distribution, high drug loading, and sustained drug release...
July 7, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28692436/andrographolide-enhances-cisplatin-mediated-anticancer-effects-in-lung-cancer-cells-through-blockade-of-autophagy
#12
Daolu Yuwen, Shanwei Mi, Yuzhu Ma, Wenjie Guo, Qiang Xu, Yan Shen, Yongqian Shu
Lung cancer is the most common cause of cancer-related death worldwide and the platinum-based drugs such as cisplatin have been used as the first line of the treatment. However, the clinical effectiveness of such chemotherapy is limited by intrinsic or acquired resistance. In this study, we found that cisplatin induced autophagy that attenuated the sensitivity of both A549 and Lewis lung cancer (LLC) cells to cisplatin. In contrast, the clinical drug andrographolide (Andro) suppressed autophagy and enhanced cisplatin-mediated apoptosis in these cells...
July 7, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28692435/prim-o-glucosylcimifugin-induces-cell-cycle-arrest-and-apoptosis-in-acute-lymphoblastic-leukemia-cells
#13
Lu Zhang, Xiaodi Liu, Xiongbin Lu, Cheng Huang
Prim-O-glucosylcimifugin is a major constituent in Radix Saposhnikovia that has been long used for the treatment of pyrexia, rheumatism, and cancer in traditional Chinese medicine. However, the molecular and cellular mechanisms remain unknown regarding the therapeutic effect of prim-O-lucosylcimifugin. Here, we investigated the effects of prim-O-glucosylcimifugin on cell cycle progression and apoptosis in human acute lymphoblastic leukemia cells. Prim-O-glucosylcimifugin treatment resulted in marked increases in cell apoptosis and cell cycle arrest at the G2/M phase...
July 7, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28682829/tumour-growth-increased-following-antiangiogenic-interruption-the-challenge-of-tumour-evaluation
#14
Sarra Oumrani, Marie-Anne Guillaumot, Bertrand Brieau, Ammar Oudjit, Chloé Léandri, Catherine Brezault, Stanislas Chaussade, Romain Coriat
Vascular endothelial growth factor inhibitors, led by bevacizumab, are considered the cornerstone of the therapy in metastatic colorectal carcinoma. We present the case of a patient with metastatic colorectal cancer who experienced rapid tumour growth with liver broad invasion after the withdrawal of an antivascular endothelial growth factor therapy, aflibercept. The rebound effect caused by the residual tumour inducing a regrowth after an initial controlled disease has already been stressed in mice and metastatic colorectal cancer patients following bevacizumab interruption...
July 5, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28678030/is-macrocytosis-a-potential-biomarker-of-the-efficacy-of-dose-dense-paclitaxel-carboplatin-combination-therapy-in-patients-with-epithelial-ovarian-cancer
#15
Tihana Boraska Jelavić, Toni Boban, Luka Brčić, Eduard Vrdoljak
The aims of this study were to investigate a clinical observation that patients with epithelial ovarian cancer treated with first-line platinum-paclitaxel chemotherapy combination (TP) develop macrocytosis and to explore the possible predictive role of macrocytosis in response rate, progression-free survival (PFS), and overall survival. A retrospective analysis of laboratory and clinical data on 184 consecutive ovarian cancer patients treated with first-line TP chemotherapy in a single oncology center from 2004 to 2015 was carried out...
July 3, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28657910/a-palladium-ii-saccharinate-complex-of-terpyridine-exerts-higher-anticancer-potency-and-less-toxicity-than-cisplatin-in-a-mouse-allograft-model
#16
Yuksel Cetin, Zelal Adiguzel, Hivda U Polat, Tolga Akkoc, Arzu Tas, Buse Cevatemre, Gokalp Celik, Baris Carikci, Veysel T Yilmaz, Engin Ulukaya, Ceyda Acilan
The main aim of this study is to assess the safety and antitumor efficacy of a palladium(II) (Pd)-saccharinate complex with terpyridine. To characterize the Pd(II) complex in vitro, its cytotoxicity was evaluated using a water-soluble tetrazolium salt cell viability assay and the mechanism of cell death was assessed by DNA fragmentation/condensation and live cell imaging analyses. The antitumor efficacy and safety of the Pd(II) complex in-vivo were examined by analyzing reduction in tumor size, changes in body and organ weight, histopathological analysis of liver, kidney, and tumor sections, and biochemical analysis of serum in C57BL/6 mice...
June 27, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28650862/the-potential-combinational-effect-of-mir-34a-with-celecoxib-in-osteosarcoma
#17
Xia Chen, Dan Peng, Yi Shen, Bo Liu, Hongkang Zhou, Huai Tao, Jufang Huang
Advanced osteosarcoma (OS) is usually treated by preoperative and postoperative chemotherapy, but there are a very limited number of active agents. Celecoxib (Cel) is a COX-2-selective nonsteroidal anti-inflammatory drug and its antitumoral effect has been shown widely in a variety of cancers including OS cells in vitro. However, the potential combinational effect of Cel with other biological therapy has not been reported in OS cells. In this study, the effects of Cel, miR-34a mimics, and their combination on cell proliferation (MTT assay), migration (in-vitro scratch assay), invasion (transwell assay), mRNA (real-time PCR), and protein (Western blot) expression of associated signal transductions were investigated in cultured MG63 cells...
June 23, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28639950/reactive-oxygen-species-generation-and-increase-in-mitochondrial-copy-number-new-insight-into-the-potential-mechanism-of-cytotoxicity-induced-by-aurora-kinase-inhibitor-azd1152-hqpa
#18
Ali Zekri, Yashar Mesbahi, Samad Ghanizadeh-Vesali, Kamran Alimoghaddam, Ardeshir Ghavamzadeh, Seyed H Ghaffari
Aurora-B kinase overexpression plays important roles in the malignant progression of prostate cancer (PCa). AZD1152-HQPA, as an inhibitor of Aurora-B, has recently emerged as a promising agent for cancer treatment. In this study, we aimed to investigate the effects of AZD1152-HQPA on reactive oxygen species (ROS) generation and mitochondrial function in PCa. We used AZD1152-HQPA (Barasertib), a highly potent and selective inhibitor of Aurora-B kinase. The effects of AZD1152-HQPA on cell viability, DNA content, cell morphology, and ROS production were studied in the androgen-independent PC-3 PCa cell line...
June 21, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28628492/complete-remission-of-intrathecal-metastases-with-lorlatinib-therapy-in-a-heavily-pretreated-alk-positive-lung-cancer-patient
#19
Maximilian J Hochmair, Sophia Schwab, Helmut Prosch
Patients with lung cancer who show EML4-ALK translocation are routinely treated with ALK tyrosine kinase inhibitors, although in the majority of cases, these patients develop resistance over time. The central nervous system is a common of site of recurrence in this population, which calls for next-generation drugs that can penetrate into the brain and achieve clinically meaningful central nervous system activity. Here, I report the case of a female patient diagnosed with adenocarcinoma of the lung in 2005, at the age of 46 years, who underwent lobectomy and then experienced a series of progression episodes 6 years later...
June 16, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28628491/calcein-acetoxymethy-ester-enhances-the-antitumor-effects-of-doxorubicin-in-nonsmall-cell-lung-cancer-by-regulating-the-topbp1-p53rr-pathway
#20
Yinxiang Lv, Rongrong Liu, Shangzhi Xie, Xiaoxiao Zheng, Jiayan Mao, Ying Cai, Wei Chen
Calcein acetoxymethyl ester (calcein-AM) treatment has been reported to exert antitumor effects in certain cancer cells; however, the detailed mechanism of action of calcein-AM in cancers remains unclear, especially in nonsmall cell lung cancer (NSCLC). This study focused on the function and mechanism of action of calcein-AM in NSCLC. We used cell viability assays, western blotting, and EdU proliferation assay combined with calcein-AM treatment or siRNA interference to investigate the role of topoisomerase IIβ binding protein 1 (TopBP1) and p53 in NSCLC chemotherapy...
June 16, 2017: Anti-cancer Drugs
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