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https://www.readbyqxmd.com/read/28102098/a-randomized-double-blind-placebo-controlled-trial-of-fruit-and-vegetable-concentrates-on-intermediate-biomarkers-in-head-and-neck-cancer
#1
Mridul Datta, Edward G Shaw, Glenn J Lesser, L Douglas Case, Mara Z Vitolins, Charles Schneider, Bart Frizzell, Christopher Sullivan, Mark Lively, Elizabeth Franzmann, Jennifer J Hu
BACKGROUND: Head and neck cancer (HNC) patients are at an increased risk for developing second primary tumors (SPTs). Diets rich in fruits and vegetables (FVs) may lower HNC risk. FV concentrates may offer a potential alternative to increasing FV intake. METHODS: We conducted a randomized, double-blind, placebo-controlled trial to evaluate whether Juice PLUS+ (JP; a commercial product with multiple FV concentrates) has an effect on p27 and Ki-67, biomarkers associated with the risk of SPTs...
January 1, 2017: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/28101580/crude-extract-and-solvent-fractions-of-calystegia-soldanella-induce-g1-and-s%C3%A2-phase-arrest-of-the-cell-cycle-in-hepg2-cells
#2
Jung Im Lee, In-Hye Kim, Taek-Jeong Nam
The representative halophyte Calystegia soldanella (L) Roem. et Schult is a perennial vine herb that grows in coastal dunes throughout South Korea as well as in other regions around the world. This plant has long been used as an edible and medicinal herb to cure rheumatic arthritis, sore throat, dropsy, and scurvy. Some studies have also shown that this plant species exhibits various biological activities. However, there are few studies on cytotoxicity induced by C. soldanella treatment in HepG2 human hepatocellular carcinoma cells...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28101220/antitumor-effect-of-forbesione-isolated-from-garcinia-hanburyi-on-cholangiocarcinoma-in-vitro-and-in-vivo
#3
Parichart Boueroy, Chariya Hahnvajanawong, Thidarut Boonmars, Sunitta Saensa-Ard, Natthinee Anantachoke, Kulthida Vaeteewoottacharn, Vichai Reutrakul
Cholangiocarcinoma (CCA) is a malignancy with no effective therapy and poor prognosis. Forbesione, a caged xanthone isolated from Garcinia hanburyi, has been reported to inhibit proliferation and to induce apoptosis in human CCA cell lines. The present study aimed to further explore the potential anticancer properties of forbesione by testing its effects against the hamster CCA cell line Ham-1 in vitro and in vivo. It was observed that forbesione inhibited the growth of Ham-1 cells in vitro and suppressed Ham-1 growth as allograft in hamsters by inducing cell cycle arrest at the S phase...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28098872/trim29-promotes-progression-of-thyroid-carcinoma-via-activating-p13k-akt-signaling-pathway
#4
Jinkai Xu, Zongyu Li, Qinghua Su, Jun Zhao, Jiancang Ma
Thyroid cancer (TC) is a common malignancy of the endocrine system. Abnormal expression of tripartite motif-containing 29 (TRIM29) has been reported to promote tumorigenesis and predict poor prognosis in several human malignancies. The aim of this study was to assess the involvement of TRIM29 in the significance and prognosis of TC. Fifty-six tumor samples and their clinicopathological para-meters were obtained from TC patients; the expression level of TRIM29 was detected by RT-qPCR and western blotting. TRIM29 expression was knocked down by small interfering RNA (siRNA) among TT, TPC-1, and K1 cells to investigate the biological role of TRIM29 in TC cells...
January 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28097652/mdm4-is-a-rational-target-for-treating-breast-cancers-with-mutant-p53
#5
Panimaya Jeffreena Miranda, Daniel Buckley, Dinesh Raghu, Jia-Min B Pang, Elena A Takano, Reshma Vijayakumaran, Amina F A S Teunisse, Atara Posner, Tahlia Procter, Marco J Herold, Cristina Gamell, Jean-Christophe Marine, Stephen B Fox, Aart Jochemsen, Sue Haupt, Ygal Haupt
Mutation of the key tumour suppressor p53 defines a transition in the progression toward aggressive and metastatic breast cancer (BC) with the poorest outcome. Specifically, p53 mutation frequency exceeds 50% in Triple Negative BC (TNBC). Key regulators of mutant p53 that facilitate its oncogenic functions are potential therapeutic targets. We report here that the MDM4 protein is frequently abundant in the context of mutant p53 in basal-like BC samples. Importantly, we show that MDM4 plays a critical role in the proliferation of these BC cells...
January 18, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28096658/anticancer-and-anti-inflammatory-activities-of-girinimbine-isolated-from-murraya-koenigii
#6
Venoos Iman, Syam Mohan, Siddig Ibrahim Abdelwahab, Hamed Karimian, Noraziah Nordin, Mehran Fadaeinasab, Mohamad Ibrahim Noordin, Suzita Mohd Noor
Therapy that directly targets apoptosis and/or inflammation could be highly effective for the treatment of cancer. Murraya koenigii is an edible herb that has been traditionally used for cancer treatment as well as inflammation. Here, we describe that girinimbine, a carbazole alkaloid isolated from M. koenigii, induced apoptosis and inhibited inflammation in vitro as well as in vivo. Induction of apoptosis in human colon cancer cells (HT-29) by girinimbine revealed decreased cell viability in HT-29, whereas there was no cytotoxic effect on normal colon cells...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28091581/icaritin-enhances-mesc-self-renewal-through-upregulating-core-pluripotency-transcription-factors-mediated-by-er%C3%AE
#7
Wing Pui Tsang, Fengjie Zhang, Qiling He, Waijiao Cai, Jianhua Huang, Wai Yee Chan, Ziyin Shen, Chao Wan
Utilization of small molecules in modulation of stem cell self-renewal is a promising approach to expand stem cells for regenerative therapy. Here, we identify Icaritin, a phytoestrogen molecule enhances self-renewal of mouse embryonic stem cells (mESCs). Icaritin increases mESCs proliferation while maintains their self-renewal capacity in vitro and pluripotency in vivo. This coincides with upregulation of key pluripotency transcription factors OCT4, NANOG, KLF4 and SOX2. The enhancement of mESCs self-renewal is characterized by increased population in S-phase of cell cycle, elevation of Cylin E and Cyclin-dependent kinase 2 (CDK2) and downregulation of p21, p27 and p57...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28086831/evaluation-of-the-cytotoxicity-of-the-bithionol-cisplatin-combination-in-a-panel-of-human-ovarian-cancer-cell-lines
#8
Vijayalakshmi N Ayyagari, Tsung-Han Jeff Hsieh, Paula L Diaz-Sylvester, Laurent Brard
BACKGROUND: Combination drug therapy appears a promising approach to overcome drug resistance and reduce drug-related toxicities in ovarian cancer treatments. In this in vitro study, we evaluated the antitumor efficacy of cisplatin in combination with Bithionol (BT) against a panel of ovarian cancer cell lines with special focus on cisplatin-sensitive and cisplatin-resistant cell lines. The primary objectives of this study are to determine the nature of the interactions between BT and cisplatin and to understand the mechanism(s) of action of BT-cisplatin combination...
January 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28077718/integrin-linked-kinase-ilk-deletion-disrupts-oligodendrocyte-development-by-altering-cell-cycle
#9
Rashad Hussain, Wendy B Macklin
: During development, oligodendrocytes are initially specified, after which oligodendrocyte precursor cells (OPCs) migrate and proliferate before differentiating into myelinating cells. Lineage-specific programming of oligodendrocytes results from sensing environmental cues through membrane-bound receptors and related intracellular signaling molecules. Integrin-linked kinase (ILK) is an important protein that is expressed at the inner margins of the plasma membrane and can mediate some of these signals...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28074905/mir-488-inhibits-proliferation-and-cisplatin-sensibility-in-non-small-cell-lung-cancer-nsclc-cells-by-activating-the-eif3a-mediated-ner-signaling-pathway
#10
Chao Fang, Yi-Xin Chen, Na-Yiyuan Wu, Ji-Ye Yin, Xiang-Ping Li, Hsuan-Shun Huang, Wei Zhang, Hong-Hao Zhou, Zhao-Qian Liu
Our previous studied indicated that eukaryotic translation initiation factor 3a (eIF3a) increases the sensitive of platinum-based chemotherapy in lung cancer. MiRNAs play an important role in lung carcinogenesis and drug response. In this study, we aimed to identify potential endogenous miRNAs that inhibit eIF3a expression and determine their influence of this inhibition on cisplatin resistance. Using bioinformatics analysis prediction and confirmation with dual-luciferase reporter assays, we found that miRNA-488 inhibited eIF3a expression by directly binding to the 3'UTR of eIF3a...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28070831/the-prolyl-oligopeptidase-inhibitor-suam-14746-attenuates-the-proliferation-of-human-breast-cancer-cell-lines-in-vitro
#11
Satoshi Tanaka, Kanayo Suzuki, Minoru Sakaguchi
BACKGROUND: Prolyl oligopeptidase (POP, EC 3.4.1.26) is a serine peptidase that hydrolyzes post-proline peptide bonds in peptides that are <30 amino acids in length. We previously reported that POP inhibition suppressed the growth of NB-1 human neuroblastomas cells and KATO III human gastric cancer cells. POP activity is commonly elevated in many cancers, which includes breast cancer. However, the effect of POP inhibition as a candidate breast cancer therapy is unknown. METHODS: The effects of POP inhibition and knockdown on the proliferation of cultured human estrogen receptor-positive (ER+) MCF7 and T47D, and ER-negative (ER-) MDA-MB-231 breast cancer cell lines and the MCF12A non-tumorigenic epithelial cell line were tested by analyzing their influence on cell proliferation (WST-1 assay), cell viability (trypan blue exclusion assay), and cell cycle arrest (cell cycle analysis, cell cycle regulator proteins expression)...
January 9, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28070171/casticin-induces-apoptosis-and-g0-g1-cell-cycle-arrest-in-gallbladder-cancer-cells
#12
Xiao-Ling Song, Yun-Jiao Zhang, Xue-Feng Wang, Wen-Jie Zhang, Zheng Wang, Fei Zhang, Yi-Jian Zhang, Jian-Hua Lu, Jia-Wei Mei, Yun-Ping Hu, Lei Chen, Huai-Feng Li, Yuan-Yuan Ye, Ying-Bin Liu, Jun Gu
BACKGROUND: Casticin, the flavonoid extracted from Vitex rotundifolia L, exerts various biological effects, including anti-inflammatory and anti-cancer activity. The aim of this study is to investigate the effects and mechanisms of casticin in human gallbladder cancer cells. METHODS: Human NOZ and SGC996 cells were used to perform the experiments. CCK-8 assay and colony formation assay were performed to evaluate cell viability. Cell cycle analyses and annexin V/PI staining assay for apoptosis were measured using flow cytometry...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28068625/loss-of-periplakin-expression-is-associated-with-the-tumorigenesis-of-colorectal-carcinoma
#13
Xiang Li, Guohui Zhang, Yan Wang, Ahmed Elgehama, Yang Sun, Lele Li, Yanhong Gu, Wenjie Guo, Qiang Xu
Periplakin (PPL), a member of the plakin protein family, has been reported to be down-expressed in urothelial carcinoma. The role of PPL in human colorectal cancer, however, remains largely unknown. Also little is known about the contribution of PPL to the malignant property of colorectal cancer and the intracellular function of PPL. In this study, we demonstrated that PPL was apparently down-expressed in colon carcinomas compared with normal and para-carcinoma tissues, which was correlated with the tumor size...
January 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28061788/increased-expression-of-cks1-protein-is-associated-with-lymph-node-metastasis-and-poor-prognosis-in-nasopharyngeal-carcinoma
#14
Lina Xu, Songqing Fan, Jin Zhao, Peng Zhou, Shuzhou Chu, Jiadi Luo, Qiuyuan Wen, Lingjiao Chen, Sailan Wen, Li Wang, Lei Shi
BACKGROUND: The Cks1 protein is an essential factor in regulating cell cycle by mediating the ubiquitination of CDK inhibitor p27(kip1). It has been reported that aberrant expression of Cks1 and p27(kip1) proteins was found in various tumors and related to initiation and progression of carcinomas. However, the potential roles which Cks1 and p27(KIP1) proteins play in NPC remain unclear. This study aims to examine the expression status of Cks1 and p27(kip1) and their possible prognostic significance in NPC...
January 7, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28059436/the-bet-bromodomain-inhibitor-jq1-suppresses-chondrosarcoma-cell-growth-via-regulation-of-yap-p21-c-myc-signaling
#15
Huan-Tian Zhang, Tao Gui, Yuan Sang, Jie Yang, Yu-Hang Li, Gui-Hong Liang, Thomas Li, Qing-Yu He, Zhen-Gang Zha
Chondrosarcoma, the second-most frequent primary bone malignancy, is generally more resistant to conventional chemotherapy and radiotherapy. Therefore, the development of an effective adjuvant therapy is necessary. Recently, targeting the epigenetic regulator such as bromodomain and extraterminal domain (BET) proteins has achieved great success. For instance, the bromodomain inhibitor JQ1 has been shown to inhibit the growth of several cancer cells both in vitro and in vivo. Herein we demonstrated that JQ1 significantly inhibited chondrosarcoma cell growth and colony formation...
January 6, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28058624/zebrafish-phenotypic-screen-identifies-novel-notch-antagonists
#16
Vithya Velaithan, Kazuhide Shaun Okuda, Mei Fong Ng, Norazwana Samat, Sze Wei Leong, Siti Munirah Mohd Faudzi, Faridah Abas, Khozirah Shaari, Sok Ching Cheong, Pei Jean Tan, Vyomesh Patel
Zebrafish represents a powerful in vivo model for phenotype-based drug discovery to identify clinically relevant small molecules. By utilizing this model, we evaluated natural product derived compounds that could potentially modulate Notch signaling that is important in both zebrafish embryogenesis and pathogenic in human cancers. A total of 234 compounds were screened using zebrafish embryos and 3 were identified to be conferring phenotypic alterations similar to embryos treated with known Notch inhibitors...
January 5, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28057912/mir-340-inhibits-proliferation-and-induces-apoptosis-in-gastric-cancer-cell-line-sgc-7901-possibly-via-the-akt-pathway
#17
Jinzhong Yu, Ruijie Wang, Jianshe Chen, Jinfeng Wu, Zhongqin Dang, Qinsheng Zhang, Bo Li
BACKGROUND Gastric cancer is among the most common types of cancer, with high morbidity and mortality. MicroRNAs (miRNAs) play vital roles in the tumorigenesis and biology of gastric cancer. This study aimed to reveal the role of miR-340 in gastric cancer cell proliferation and apoptosis and to elucidate the potential mechanisms. MATERIAL AND METHODS Human gastric cancer cells SGC-7901 were used in this study for cell transfection with miR-340 mimic or inhibitor. After transfection, cell viability, proliferation, and apoptosis were examined by MTT, BrdU, and flow cytometry assays, respectively...
January 6, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28056952/litchi-seed-extract-inhibits-epidermal-growth-factor-receptor-signaling-and-growth-of-two-non-small-cell-lung-carcinoma-cells
#18
Yuan-Chiang Chung, Chin-Hui Chen, Yu-Ting Tsai, Chih-Cheng Lin, Jyh-Ching Chou, Ting-Yu Kao, Chiu-Chen Huang, Chi-Hsuan Cheng, Chih-Ping Hsu
BACKGROUND: Litchi seeds possess rich amounts of phenolics and have been shown to inhibit proliferation of several types of cancer cells. However, the suppression of EGFR signaling in non-small cell lung cancer (NSCLC) by litchi seed extract (LCSE) has not been fully understood. METHODS: In this study, the effects of LCSE on EGFR signaling, cell proliferation, the cell cycle and apoptosis in A549 adenocarcinoma cells and NCI- H661 large-cell carcinoma cells were examined...
January 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28056778/structural-prediction-of-the-interaction-of-the-tumor-suppressor-p27-kip1-with-cyclin-a-cdk2-identifies-a-novel-catalytically-relevant-determinant
#19
Jinyu Li, Jörg Vervoorts, Paolo Carloni, Giulia Rossetti, Bernhard Lüscher
BACKGROUND: The cyclin-dependent kinase 2 (CDK2) together with its cyclin E and A partners is a central regulator of cell growth and division. Deregulation of CDK2 activity is associated with diseases such as cancer. The analysis of substrates identified S/T-P-X-R/K/H as the CDK2 consensus sequence. The crystal structure of cyclin A/CDK2 with a short model peptide supports this sequence and identifies key interactions. However, CDKs use additional determinants to recognize substrates, including the RXL motif that is read by the cyclin subunits...
January 5, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28042144/novel-bet-protein-proteolysis-targeting-chimera-bet-protac-exerts-superior-lethal-activity-than-bromodomain-inhibitor-beti-against-post-myeloproliferative-neoplasm-mpn-secondary-s-aml-cells
#20
D T Saenz, W Fiskus, Y Qian, T Manshouri, K Rajapakshe, K Raina, K G Coleman, A P Crew, A Shen, C P Mill, B Sun, P Qiu, T M Kadia, N Pemmaraju, C DiNardo, M-S Kim, A J Nowak, C Coarfa, C M Crews, S Verstovsek, K N Bhalla
The PROTAC (proteolysis-targeting chimera) ARV-825 recruits bromodomain and extraterminal (BET) proteins to the E3 ubiquitin ligase cereblon, leading to degradation of BET proteins, including BRD4. Whereas the BET-protein inhibitor (BETi) OTX015 caused accumulation of BRD4, treatment with equimolar concentrations of ARV-825 caused sustained and profound depletion (>90%) of BRD4 and induced significantly more apoptosis in cultured and patient-derived (PD) CD34+ post-MPN sAML cells, while relatively sparing the CD34+ normal hematopoietic progenitor cells...
January 2, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
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