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https://www.readbyqxmd.com/read/30105850/long-noncoding-rna-hotair-promotes-renal-cell-carcinoma-malignancy-through-alpha-2-8-sialyltransferase-4-by-sponging-microrna-124
#1
Yue Pan, Yongjin Wu, Jialei Hu, Yujia Shan, Jia Ma, Huipeng Ma, Xia Qi, Li Jia
OBJECTIVES: Accumulating evidence demonstrated that the long noncoding RNA (lncRNA) HOTAIR (Hox transcript antisense intergenic RNA) plays key role in renal cell carcinoma (RCC) malignancy, while microRNA-124 (miR-124) is a tumour suppressor in RCC. The aim of this work was to assess the biological function of HOTAIR and to explore underlying mechanism involved in HOTAIR/miR-124/alpha-2, 8-sialyltransferase 4 (ST8SIA4) axis-regulated progression in RCC. MATERIALS AND METHODS: Real-time PCR analyses and western blots were performed to the levels of HOTAIR, miR-124 and ST8SIA4 expression in human RCC tissues and RCC cell lines (ACHN and 786-O)...
August 13, 2018: Cell Proliferation
https://www.readbyqxmd.com/read/30087714/tofa-induces-cell-cycle-arrest-and-apoptosis-in-achn-and-786-o-cells-through-inhibiting-pi3k-akt-mtor-pathway
#2
Dejiao He, Xuan Sun, Hongxia Yang, Xiaoli Li, Dingping Yang
Cancer cells usually have a high requirement for fatty acids in order to meet the rapid proliferation and metabolism. Acetyl-CoA carboxylase-α(ACCA) catalyzes the carboxylation of acetyl-CoA to malonyl-CoA and has been a rate-limiting enzyme in the synthesis of long chain fatty acid and cellular energy storage. 5-tetradecyloxy-2-furoic acid (TOFA) is well known as an allosteric inhibitor of ACCA. In this study, we examined the functions of TOFA in human renal cell carcinoma (RCC) cell lines ACHN and 786-O...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/30066895/microrna%C3%A2-320a-suppresses-tumour-cell-proliferation-and-invasion-of-renal-cancer-cells-by-targeting-foxm1
#3
Shiyue Zhao, Yangwei Wang, Yan Lou, Yonggang Wang, Jing Sun, Manyu Luo, Wen Li, Lining Miao
An increasing body of evidence has indicated that microRNAs (miRNAs/miRs) may play an important role in tumourigenesis and tumour progression. Recent studies have demonstrated that miR‑320a is aberrantly expressed in a variety of different types of human cancer. The results of the present study confirmed that the expression of miR‑320a was decreased in clinical specimens and cell lines. Expression of miR‑320a inhibited the growth and invasive ability of ACHN and Caki‑1 cells. Bioinformatics analysis and a luciferase reporter assay demonstrated that forkhead box protein M1 (FoxM1) was directly regulated by miR‑320a...
July 25, 2018: Oncology Reports
https://www.readbyqxmd.com/read/30048489/autophagic-cell-death-associated-to-sorafenib-in-renal-cell-carcinoma-is-mediated-through-akt-inhibition-in-an-erk1-2-independent-fashion
#4
Leticia Serrano-Oviedo, Marta Ortega-Muelas, Jesús García-Cano, María Ll Valero, Francisco J Cimas, Raquel Pascual-Serra, Diego M Fernandez-Aroca, Olga Roche, María J Ruiz-Hidalgo, Borja Belandia, José M Giménez-Bachs, Antonio S Salinas, Ricardo Sanchez-Prieto
OBJECTIVES: To fully clarify the role of Mitogen Activated Protein Kinase in the therapeutic response to Sorafenib in Renal Cell Carcinoma as well as the cell death mechanism associated to this kinase inhibitor, we have evaluated the implication of several Mitogen Activated Protein Kinases in Renal Cell Carcinoma-derived cell lines. MATERIALS AND METHODS: An experimental model of Renal Cell Carcinoma-derived cell lines (ACHN and 786-O cells) was evaluated in terms of viability by MTT assay, induction of apoptosis by caspase 3/7 activity, autophagy induction by LC3 lipidation, and p62 degradation and kinase activity using phospho-targeted antibodies...
2018: PloS One
https://www.readbyqxmd.com/read/30033460/acoustic-formation-of-multicellular-tumor-spheroids-enabling-on-chip-functional-and-structural-imaging
#5
K Olofsson, V Carannante, M Ohlin, T Frisk, K Kushiro, M Takai, A Lundqvist, B Önfelt, M Wiklund
Understanding the complex 3D tumor microenvironment is important in cancer research. This microenvironment can be modelled in vitro by culturing multicellular tumor spheroids (MCTS). Key challenges when using MCTS in applications such as high-throughput drug screening are overcoming imaging and analytical issues encountered during functional and structural investigations. To address these challenges, we use an ultrasonic standing wave (USW) based MCTS culture platform for parallel formation, staining and imaging of 100 whole MCTS...
August 7, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/30021352/oncogenic-mir-663a-is-associated-with-cellular-function-and-poor-prognosis-in-renal-cell-carcinoma
#6
Liang Zhou, Xiang Pan, Zuwei Li, Peijie Chen, Jing Quan, Canbin Lin, Yulin Lai, Jinling Xu, Weijie Xu, Xin Guan, Hang Li, Yaoting Gui, Yongqin Lai
BACKGROUND: MicroRNA(miRNA) plays a key regulatory role in various stages of tumorigenesis, including cell growth, cell cycle control, apoptosis avoidance, tissue invasion, and metastasis. Several microRNAs are involved in the development of renal cell carcinoma (RCC) and the malignant transformation process. However, the effects of miR-663a on RCC have rarely been reported. METHODS: In the present study, the expression of miR-663a was examined in RCC using matched normal kidney tissues and four cell lines (786-O, Caki-1, ACHN and HK-2)...
September 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/30008916/oncogenic-mir-425-5p-is-associated-with-cellular-migration-proliferation-and-apoptosis-in-renal-cell-carcinoma
#7
Jing Quan, Yawen Li, Xiang Pan, Yulin Lai, Tao He, Canbin Lin, Liang Zhou, Liwen Zhao, Shuolei Sun, Yu Ding, Lingzhi Tao, Yimin Hu, Xionghui Wu, Zebo Chen, Fangting Zhang, Jing Ye, Liangchao Ni, Yongqing Lai
An increasing number of studies have demonstrated the function of microRNAs (miRNAs) in the initiation and development of various types of cancer. Among them, miR-425-5p is proven to serve an important function in several types of cancer, including gastric, cervical cancer, and hepatocellular carcinoma. However, the function of miR-425-5p in renal cell carcinoma (RCC) remains unclear. In the present study, it was demonstrated that the expression level of miR-425-5p was upregulated in RCC tissues and cell lines compared with normal tissues and cell lines (P<0...
August 2018: Oncology Letters
https://www.readbyqxmd.com/read/30004456/garcinol-enhances-trail-induced-apoptotic-cell-death-through-up-regulation-of-dr5-and-down-regulation-of-c-flip-expression
#8
Seok Kim, Seung Un Seo, Kyoung-Jin Min, Seon Min Woo, Ju-Ock Nam, Peter Kubatka, Shin Kim, Jong-Wook Park, Taeg Kyu Kwon
Garcinol is a polyisoprenylated benzophenone derived from the Garcinia indica fruit that possess potential therapeutic effects such as inhibition of inflammation and tumor expansion. Here, we investigated whether garcinol induces TRAIL sensitization in renal carcinoma cells. Single treatment with garcinol or TRAIL did not effect on apoptosis. However, combined treatment with garcinol plus TRAIL significantly induced apoptosis in renal carcinoma (Caki, ACHN and A498), lung carcinoma (A549), and hepatoma (SK-Hep1) cells...
July 2, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29984342/down-regulation-of-transient-receptor-potential-melastatin-member-7-prevents-migration-and-invasion-of-renal-cell-carcinoma-cells-via-inactivation-of-the-src-and-akt-pathway
#9
Yun-Sok Ha, Yeon-Yong Kim, Na Hee Yu, So Young Chun, Seock Hwan Choi, Jun Nyung Lee, Bum Soo Kim, Eun Sang Yoo, Tae Gyun Kwon
Purpose: Transient receptor potential melastatin member 7 (TRPM7), an ion channel and serine/threonine protein kinase, has been linked with distinct human malignancies. However, the role of TRPM7 in renal cell carcinoma (RCC) has not been investigated. The aim of this study is to determine whether TRPM7 regulates the migration and invasion of RCC cells. Its relationship with signal transduction pathways was also studied. Materials and Methods: The human RCC cell lines ACHN and SN12C were chosen for this study...
July 2018: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29959702/three-dimensional-cell-culture-model-utilization-in-renal-carcinoma-cancer-stem-cell-research
#10
Kamila Maliszewska-Olejniczak, Klaudia K Brodaczewska, Zofia F Bielecka, Anna M Czarnecka
Specific 3D conditions of cancer cell lines have been optimized over last years, with growing significance of serum-free and xeno-free culture variants. The choice of proper culture media enables cancer stem cells proliferation in primary and stable cell lines. To obtain renal cell cancer stem-like phenotype, we employed media dedicated for mesenchymal cells and adult stem cells. Developed RCC cell line 3D culture system enables effective drug testing, including tyrosine kinase inhibitor anti-cancer cell toxicity...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29928324/low-tumor-glutathione-level-as-a-sensitivity-marker-for-glutamate-cysteine-ligase-inhibitors
#11
Satoru Nishizawa, Hideo Araki, Yoshinori Ishikawa, Satoshi Kitazawa, Akito Hata, Tomoyoshi Soga, Takahito Hara
Previous metabolomic analyses of cancer have revealed elevated glutathione levels in tumors. An inhibitor of cystine uptake was identified to suppress glutathione biosynthesis, leading to ferroptosis, a novel iron-dependent form of cell death that differs from apoptosis and necrosis. Glutamate-cysteine ligase (GCL) is the rate-limiting enzyme in the glutathione biosynthesis pathway. Buthionine sulfoximine (BSO), a GCL inhibitor, has previously demonstrated limited clinical benefits. Therefore, selecting patients who respond well to the inhibitor is a key approach for successful future drug development...
June 2018: Oncology Letters
https://www.readbyqxmd.com/read/29878761/cytotoxic-drimane-sesquiterpenoids-isolated-from-perenniporia-maackiae
#12
Jaeyoung Kwon, Hyaemin Lee, Young Hye Seo, Jieun Yun, Jun Lee, Hak Cheol Kwon, Yuanqiang Guo, Jong Soon Kang, Jae-Jin Kim, Dongho Lee
A chemical investigation of a basidiomycetes fungus, Perenniporia maackiae, led to the discovery of 12 drimane sesquiterpenoids, including seven new constituents (1-7). The elucidation of the structures was performed via interpreting extensive spectroscopic methods, including ECD calculations. Among all isolated compounds, 1, 2, and 6 exhibited cytotoxicity toward six carcinoma cells, including ACHN, HCT-15, MDA-MB-231, NCI-H23, NUGC-3, and PC-3 cells, with half-maximal inhibition of cell proliferation values of 1...
June 22, 2018: Journal of Natural Products
https://www.readbyqxmd.com/read/29845253/vhl-loss-predicts-response-to-aurora-kinase-a-inhibitor-in-renal-cell-carcinoma-cells
#13
Xiao-Fei Ding, Jun Zhou, Guang Chen, Ying-Liang Wu
The majority of molecular targets of anticancer agents are limited to a subset of patients, and therefore identification of more specific biomarkers that can be used to improve clinical outcomes is of increasing interest. The present study showed that von Hippel‑Lindau tumor suppressor (VHL) tumor‑suppressor activity may influence the therapeutic response to Aurora kinase A (AURKA) inhibitors in human renal cell carcinoma (RCC). VHL protein (pVHL) expression was evaluated by immunoblotting in the human RCC cell lines CAKI, ACHN, 786‑O, 769‑P and A498...
July 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29799306/preclinical-evaluation-of-novel-pi3k-mtor-dual-inhibitor-sn202-as-potential-anti-renal-cancer-agent
#14
Wan Wang, Lidong Liao, Yujun Wang, Hui Li, Zili Suo, Kai Long, Peixiao Tang
The PI3K/mTOR pathway is one of the most frequently aberrantly activated pathways in human malignancies, such as renal cell carcinoma (RCC), and contributes to resistance to antitumor therapies. Thus, PI3K/mTOR is an attractive target for the development of antitumor agents. In this study, we evaluated the preclinical effects of a novel inhibitor SN202. We examined Akt/mTOR activities in renal cancer cells after SN202 treatment. The preclinical effects of SN202 on tumor growth were evaluated in renal cancer cells in vitro and in murine xenografts in vivo...
May 25, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29789794/biodegradable-alginate-chitosan-hollow-nanospheres-for-codelivery-of-doxorubicin-and-paclitaxel-for-the-effect-of-human-lung-cancer-a549-cells
#15
Liu Tao, Jie Jiang, Yu Gao, Chao Wu, Ying Liu
A biodegradable alginate coated chitosan hollow nanosphere (ACHN) was prepared by a hard template method and used for codelivery of doxorubicin (DOX) and paclitaxel (PTX) to investigate the effect on human lung cancer A549 cells. PTX was loaded into the nanometer hollow structure of ACHN through adsorption method. DOX was coated on surface of ACHN through electrostatic interaction. Drug release studies exhibited a sustained-release effect. According to X-ray diffraction patterns (XRD), differential scanning calorimetry (DSC), and Fourier transform infrared spectroscopy (FT-IR) analysis, DOX structure in the loading samples (DOX-PTX-ACHN) was of amorphous state while PTX was microcrystalline...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29786436/cytotoxic-and-antibacterial-eremophilane-sesquiterpenes-from-the-marine-derived-fungus-cochliobolus-lunatus-scsio41401
#16
Wei Fang, Jianjiao Wang, Junfeng Wang, Liqiao Shi, Kunlong Li, Xiuping Lin, Yong Min, Bin Yang, Lan Tang, Yonghong Liu, Xuefeng Zhou
Three new eremophilane sesquiterpenes, dendryphiellins H-J (1-3), and three new phthalide natural products (4-6) were isolated from the marine-derived fungus Cochliobolus lunatus SCSIO41401. Their structures including absolute configurations were determined by spectroscopic and calculated ECD analyses. Dendryphiellin I (2) showed cytotoxic and antibacterial activities against five cancer cell lines (IC50 1.4 to 4.3 μM) and three bacterial species (MIC 1.5 to 13 μg/mL), respectively. Dendryphiellin J (3), a rare naturally occurring aldoxime analogue, displayed cytotoxicities against ACHN and HepG-2 cells with IC50 values of 3...
June 22, 2018: Journal of Natural Products
https://www.readbyqxmd.com/read/29775868/cytotoxic-and-other-withanolides-from-aeroponically-grown-physalis-philadelphica
#17
Ya-Ming Xu, E M Kithsiri Wijeratne, Alan D Brooks, Poonam Tewary, Li-Jiang Xuan, Wen-Qiong Wang, Thomas J Sayers, A A Leslie Gunatilaka
Eleven withanolides including six previously undescribed compounds, 16β-hydroxyixocarpanolide, 24,25-dihydroexodeconolide C, 16,17-dehydro-24-epi-dioscorolide A, 17-epi-philadelphicalactone A, 16-deoxyphiladelphicalactone C, and 4-deoxyixocarpalactone A were isolated from aeroponically grown Physalis philadelphica. Structures of these withanolides were elucidated by the analysis of their spectroscopic (HRMS, 1D and 2D NMR, ECD) data and comparison with published data for related withanolides. Cytotoxic activity of all isolated compounds was evaluated against a panel of five human tumor cell lines (LNCaP, ACHN, UO-31, M14 and SK-MEL-28), and normal (HFF) cells...
August 2018: Phytochemistry
https://www.readbyqxmd.com/read/29758413/physcion-8-o-%C3%AE-glucopyranoside-inhibits-clear-cell-renal-cell-carcinoma-bydownregulating-hexokinase-ii-and-inhibiting-glycolysis
#18
Qiang Wang, Yi Yan, Jie Zhang, Peng Guo, Yuqing Xing, Yong Wang, Fawei Qin, Qingyun Zeng
BACKGROUND: Clear-cell renal cell carcinoma (ccRCC) has the highest prevalence, approximately 80%, amongst all RCC cases. Therefore, the development of novel therapeutic agents against ccRCC is imperative. Our previous studies have shown that physcion 8-O-β-glucopyranoside (PG), an anthraquinone extracted from Rumexjaponicus Houtt, exerted an anti-cancer effect in hepatocellular carcinoma cells. The present study was aimed to investigate a possible anti-neoplastic role of PG in ccRCC and the relevant underlying mechanism...
August 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29731872/tropomyosin-1-promotes-cancer-cell-apoptosis-via-the-p53-mediated-mitochondrial-pathway-in-renal-cell-carcinoma
#19
Chao Tang, Jin Wang, Qi Wei, Yi-Peng Du, He-Ping Qiu, Chao Yang, Yu-Chuan Hou
Tropomyosin-1 (TPM1), a widely expressed actin-binding protein, is downregulated in many tumors and associated with cancer progression. A previous study from our group suggested that TPM1 could be involved in renal cell carcinoma (RCC) apoptosis, but the mechanisms and details remained unknown. The present study aimed to further examine the proapoptotic effects of TPM1 and investigate the underlying mechanisms in RCC cell lines. Results from cell viability, DAPI staining and apoptosis assays demonstrated that TPM1 upregulation inhibited cell proliferation and promoted cell apoptosis in both 786-O and ACHN RCC cell lines...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29702597/corosolic-acid-induces-non-apoptotic-cell-death-through-generation-of-lipid-reactive-oxygen-species-production-in-human-renal-carcinoma-caki-cells
#20
Seon Min Woo, Seung Un Seo, Kyoung-Jin Min, Seung-Soon Im, Ju-Ock Nam, Jong-Soo Chang, Shin Kim, Jong-Wook Park, Taeg Kyu Kwon
Corosolic acid is one of the pentacyclic triterpenoids isolated from Lagerstroemia speciose and has been reported to exhibit anti-cancer and anti-proliferative activities in various cancer cells. In the present study, we investigated the molecular mechanisms of corosolic acid in cancer cell death. Corosolic acid induces a decrease of cell viability and an increase of cell cytotoxicity in human renal carcinoma Caki cells. Corosolic acid-induced cell death is not inhibited by apoptosis inhibitor (z-VAD-fmk, a pan-caspase inhibitor), necroptosis inhibitor (necrostatin-1), or ferroptosis inhibitors (ferrostatin-1 and deferoxamine (DFO))...
April 27, 2018: International Journal of Molecular Sciences
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