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https://www.readbyqxmd.com/read/29050464/anti-platelet-effects-of-epigallocatechin-3-gallate-in-addition-to-the-concomitant-aspirin-clopidogrel-or-ticagrelor-treatment
#1
Hyung Joon Joo, Ji-Young Park, Soon Jun Hong, Kyoung-Ah Kim, Seung Hoon Lee, Jae-Young Cho, Jae Hyoung Park, Cheol Woong Yu, Do-Sun Lim
Background/Aims: Although epigallocatechin-3-gallate (EGCG), which is found in high contents in the dried leaves of green tea, has been reported to have an anti-platelet effect, synergistic effects of EGCG in addition to current anti-platelet medications remains to be elucidated. Methods: Blood samples were obtained from 40 participants who took aspirin (ASA, n = 10), clopidogrel (CPD, n = 10), ticagrelor (TCG, n = 10) and no anti-platelet medication (Control, n = 10)...
October 19, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29050344/microrna-141-3p-promotes-glioma-cell-growth-and-temozolomide-resistance-by-directly-targeting-p53
#2
Xu Zhou, Weining Wu, Ailiang Zeng, Er Nie, Xin Jin, Tianfu Yu, Tongle Zhi, Kuan Jiang, Yingyi Wang, Junxia Zhang, Yongping You
Glioblastoma multiforme is the most common primary malignancy in the brain and confers a uniformly poor prognosis. MicroRNAs have been shown to activate or inhibit tumorigenesis. Abnormalities in the p53 signaling pathway are found in various cancers and correlate with tumor formation. We examined the expression of microRNA-141-3p (miR-141-3p) in glioma of different grades by analysis of expression profiling databases and clinical specimens. Cell proliferation and flow cytometry assays were performed to evaluate the promotion of miR-141-3p in proliferation, cell cycle, apoptosis, and temozolomide resistance of glioblastoma cells in vitro...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050323/histone-deacetylase-inhibitor-thailandepsin-a-activates-notch-signaling-and-suppresses-neuroendocrine-cancer-cell-growth-in-vivo
#3
Samuel Jang, Andrew Janssen, Zviadi Aburjania, Matthew B Robers, April Harrison, Ajitha Dammalapati, Yi-Qiang Cheng, Herbert Chen, Renata Jaskula-Sztul
Novel therapies for neuroendocrine (NE) cancers are desperately needed as they frequently present as metastatic disease and cause debilitating symptoms by secreting excessive hormones. Induction of Notch isoforms has a tumor suppressive effect in NE cancer cell lines, and we have observed that histone deacetylase inhibitors (HDACi) potently activate Notch. In this study, we describe the potential for Burkholderia thailandensis-derived class I HDACi thailandepsin A (TDP-A) as a Notch activator and therapeutic agent against NE cancer...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050306/the-hyaluronan-mediated-motility-receptor-rhamm-promotes-growth-invasiveness-and-dissemination-of-colorectal-cancer
#4
Valentina Mele, Lena Sokol, Viktor Hendrik Kölzer, Dennis Pfaff, Manuele Giuseppe Muraro, Irene Keller, Zahnd Stefan, Irene Centeno, Luigi Maria Terracciano, Heather Dawson, Inti Zlobec, Giandomenica Iezzi, Alessandro Lugli
In colorectal cancer (CRC), RHAMM is an independent adverse prognostic factor. The aim of the study was therefore to investigate on the role of RHAMM as a potential direct driver of cell proliferation and migration in CRC cell lines and to identify pathways dependent on RHAMM in human CRC. Proliferation, cell cycle alterations and invasive capacity were tested in two RHAMM- and control- knockdown CRC cell lines by flow cytometry and in vitro assays. Tumorigenicity and metastasis formation was assessed in immunodeficient mice...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050260/epigenetic-silencing-of-tmem176a-promotes-esophageal-squamous-cell-cancer-development
#5
Ying Wang, You Zhang, James G Herman, Enqiang Linghu, Mingzhou Guo
The function of human transmembrane protein 176A (TMEM176A) in cancer remains unclear. To understand the function and mechanism of TMEM176A in human esophageal cancer development, 13 esophageal cancer cell lines and 267 cases of primary esophageal squamous cell cancer (ESCC) samples were analyzed by methylation specific PCR (MSP), flow cytometry, immunohistochemistry and transfection assays. TMEM176A was highly expressed in BIC1 cells and loss of TMEM176A expression was found in TE1, TE3, TE13, KYSE140, KYSE180, KYSE410, KYSE450, KYSE520, Segl, KYSE150, YES2 and COLO680N cells...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050153/-study-on-the-differentiation-of-rat-bone-marrow-mesenchymal-stem-cells-into-chondrocytes-induced-by-tgf-beta-3
#6
D B Liu, X S Han, W L Huang, J Deng, R F She
Objective: To explore the methods for the differentiation of rat bone marrow mesenchymal stem cells (BMMSCs) into chondrocytes induced by transforming growth factor (TGF)-beta 3 in vitro, and search for a reliable seed cell for the regeneration and repair of articular cartilage in osteoarthritis. Methods: SD rat femoral and tibial BMMSCs were cultured by the whole bone marrow adherent method, and then the purity was identified by flow cytometry. P3 generation cells were induced and differentiated into chondrocytes by the induction of differentiation medium containing TGF-beta 3, and cell chondrogenic differentiation ability at different induction time points was detected...
September 26, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29050003/cantharidin-inhibits-the-growth-of-triple-negative-breast-cancer-cells-by-suppressing-autophagy-and-inducing-apoptosis-in-vitro-and-in-vivo
#7
Hong-Chang Li, Zhi-Hua Xia, Ya-Feng Chen, Fan Yang, Wen Feng, Han Cai, Yi Mei, Yi-Ming Jiang, Ke Xu, Dian-Xu Feng
BACKGROUND/AIMS: Cantharidin, a type of terpenoid secreted by the blister beetle Mylabris phalerata (Pallas), has attracted great attention in cancer therapy because of its potential anti-cancer activities. Here, we report the effects on apoptosis and autophagy in human triple-negative breast cancer (TNBC) cell lines after treatment with cantharidin and attempt to elucidate the underlying mechanisms. METHODS: MDA-MB-231 and MDA-MB-468 cells were treated with cantharidin and cell proliferation was examined using CCK-8 and clone formation assays...
October 19, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29049999/luteolin-promotes-cell-apoptosis-by-inducing-autophagy-in-hepatocellular-carcinoma
#8
Zhijia Cao, Huainian Zhang, Xiaoyan Cai, Wei Fang, Dong Chai, Ying Wen, Hongsheng Chen, Fujiang Chu, Yongli Zhang
BACKGROUND/AIMS: Hepatocellular carcinoma (HCC) is the most common primary liver malignancy and is a leading cause of cancer-related death worldwide. Luteolin, a flavonoid from traditional Chinese medicine, shows anti-cancer activity in many cancer cells, including HCC. However, the mechanism underlying the action of luteolin in HCC, especially its role in regulating cell autophagy, remains unclear. In the present study, we investigated the role of luteolin in regulating cell autophagy and the role of autophagy in luteolin-induced apoptosis...
October 19, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29049989/the-usp7-inhibitor-p5091-induces-cell-death-in-ovarian-cancers-with-different-p53-status
#9
Mengying Wang, Yayun Zhang, Taishu Wang, Jinrui Zhang, Zhu Zhou, Yan Sun, Shanshan Wang, Yulin Shi, Xuelin Luan, Yingqiu Zhang, Yifei Wang, Yang Wang, Zhongwen Zou, Lan Kang, Han Liu
BACKGROUND/AIMS: Ovarian cancer is often diagnosed at later stages with poor prognosis. Recent studies have associated the expression of deubiquitylase USP7 with the survival of ovarian cancers. Being a cysteine protease, USP7 could become a target for pharmacological intervention. Therefore, in this study, we assessed the influence of its inhibitor P5091 on ovarian cancer cells. METHODS: Ovarian cancer cells were treated with P5091, and cell proliferation was measured with MTT assay; cell morphology was inspected under a phase-contrast microscope; cell cycle and cell death were examined by flow cytometry...
October 19, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29049987/isoflavones-induce-bex2-dependent-autophagy-to-prevent-atr-induced-neurotoxicity-in-sh-sy5y-cells
#10
Peng Li, Kun Ma, Hao-Yu Wu, Yan-Ping Wu, Bai-Xiang Li
BACKGROUND/AIMS: Atrazine (ATR) is a broad-spectrum herbicide in wide use around the world. However, ATR is neurotoxic and can cause cell death in dopaminergic neurons, leading to neurodegenerative disorders. Autophagy is the basic cellular catabolic process involving the degradation of proteins and damaged organelles. Studies have shown that certain plant compounds can induce autophagy and prevent neuronal cell death. This prompted us to investigate plant compounds that might reduce the neurotoxic effects of ATR...
October 19, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29049722/a-ppar-gamma-agonist-rosiglitazone-suppresses-fibrotic-response-in-human-pterygium-fibroblasts-by-modulating-the-p38-mapk-pathway
#11
Selikem Abla Nuwormegbe, Joon Hyung Sohn, Sun Woong Kim
Purpose: Fibroblast activation may play an important role in pterygium progression. Synthetic peroxisome proliferator-activated receptor γ (PPAR-γ) ligands have been shown to be effective antifibrotic agents against transforming growth factor β1 (TGF-β1) induced fibrosis in several tissues. We aimed to investigate the antifibrotic effects of the PPAR-γ ligand rosiglitazone in pterygium fibroblasts and the underlying mechanisms. Methods: Profibrotic activation was induced by TGF-β1 in primary cultured human pterygium fibroblasts and the effect of rosiglitazone treatment on α-smooth muscle actin (α-SMA), and extra cellular matrix proteins synthesis was detected by western blotting, real-time PCR, immunostaining, and flow cytometry...
October 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29049716/bone-marrow-derived-cell-recruitment-to-the-neurosensory-retina-and-retinal-pigment-epithelial-cell-layer-following-subthreshold-retinal-phototherapy
#12
Sergio Caballero, David L Kent, Nilanjana Sengupta, Sergio Li Calzi, Lynn Shaw, Eleni Beli, Leni Moldovan, James M Dominguez, Ramana S Moorthy, Maria B Grant
Purpose: We investigated whether subthreshold retinal phototherapy (SRPT) was associated with recruitment of bone marrow (BM)-derived cells to the neurosensory retina (NSR) and RPE layer. Methods: GFP chimeric mice and wild-type (WT) mice were subjected to SRPT using a slit-lamp infrared laser. Duty cycles of 5%, 10%, 15%, and 20% (0.1 seconds, 250 mW, spot size 50 μm) with 30 applications were placed 50 to 100 μm from the optic disc. In adoptive transfer studies, GFP+ cells were given intravenously immediately after WT mice received SRPT...
October 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29049359/analysis-of-pd-1-expression-in-the-monocyte-subsets-from-non-septic-and-septic-preterm-neonates
#13
Magdalena Zasada, Marzena Lenart, Magdalena Rutkowska-Zapała, Małgorzata Stec, Wojciech Durlak, Andrzej Grudzień, Agnieszka Krzeczkowska, Nina Mól, Marta Pilch, Maciej Siedlar, Przemko Kwinta
Programmed death-1 (PD-1) receptor system represents a part of recently reported immunoregulatory pathway. PD-1 is an immune checkpoint molecule, which plays an important role in downregulating the immune system proinflammatory activity. Until recently, PD-1 expression was not established on immune cells of the preterm infants. The study objectives were to confirm expression of the PD-1 receptors on the monocytes isolated from very low birth weight newborns (VLBW), and to analyze their expression during the first week of life and late-onset sepsis...
2017: PloS One
https://www.readbyqxmd.com/read/29049345/processing-of-the-major-autolysin-of-e-faecalis-atla-by-the-zinc-metalloprotease-gele-impacts-atla-septal-localization-and-cell-separation
#14
Emily K Stinemetz, Peng Gao, Kenneth L Pinkston, Maria Camila Montealegre, Barbara E Murray, Barrett R Harvey
AtlA is the major peptidoglycan hydrolase of Enterococcus faecalis involved in cell division and cellular autolysis. The secreted zinc metalloprotease, gelatinase (GelE), has been identified as an important regulator of cellular function through post-translational modification of protein substrates. AtlA is a known target of GelE, and their interplay has been proposed to regulate AtlA function. To study the protease-mediated post-translational modification of AtlA, monoclonal antibodies were developed as research tools...
2017: PloS One
https://www.readbyqxmd.com/read/29049343/a-sequential-monte-carlo-approach-to-gene-expression-deconvolution
#15
Oyetunji E Ogundijo, Xiaodong Wang
High-throughput gene expression data are often obtained from pure or complex (heterogeneous) biological samples. In the latter case, data obtained are a mixture of different cell types and the heterogeneity imposes some difficulties in the analysis of such data. In order to make conclusions on gene expresssion data obtained from heterogeneous samples, methods such as microdissection and flow cytometry have been employed to physically separate the constituting cell types. However, these manual approaches are time consuming when measuring the responses of multiple cell types simultaneously...
2017: PloS One
https://www.readbyqxmd.com/read/29049316/genomic-comparison-of-early-passage-conditionally-reprogrammed-breast-cancer-cells-to-their-corresponding-primary-tumors
#16
Akanksha S Mahajan, Bruna M Sugita, Anju N Duttargi, Francisco Saenz, Ewa Krawczyk, Justine N McCutcheon, Aline S Fonseca, Bhaskar Kallakury, Paula Pohlmann, Yuriy Gusev, Luciane R Cavalli
Conditionally reprogrammed cells (CRCs) are epithelial cells that are directly isolated from patients' specimens and propagated in vitro with feeder cells and a Rho kinase inhibitor. A number of these cells have been generated from biopsies of breast cancer patients, including ductal carcinoma in situ and invasive carcinomas. The characterization of their genomic signatures is essential to determine their ability to reflect the natural biology of their tumors of origin. In this study, we performed the genomic characterization of six newly established invasive breast cancer CRC cultures in comparison to the original patients' primary breast tumors (PBT) from which they derived...
2017: PloS One
https://www.readbyqxmd.com/read/29048996/aberrant-dna-methylation-in-radon-and-or-cigarette-smoke-induced-malignant-transformation-in-beas-2b-human-lung-cell-line
#17
Huanhuan Huang, Yahui Ji, Jiayu Zhang, Zhigang Su, Mingxing Liu, Jian Tong, Cuicui Ge, Tao Chen, Jianxiang Li
It is well known that cigarette smoking (CS) and/or radon (Rn) induce malignant transformation in lung cells. To investigate the mechanisms underlying lung carcinogenesis induced by CS, Rn; or Rn followed by CS using BEAS-2B cell line derived from human bronchial epithelial cells. BEAS-2B cells were exposed to either Rn (20,000 Bq/m(3)) for 30 min or CS (20%) for 10 min or Rn followed by CS for 40 min. Global and gene-specific DNA methylation modifications were measured by microarray and methylation-specific polymerase chain reaction...
October 19, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/29048685/mir-504-promotes-tumour-growth-and-metastasis-in-human-osteosarcoma-by-targeting-tp53inp1
#18
Qingchun Cai, Sixiang Zeng, Xing Dai, Junlong Wu, Wei Ma
An increasing number of studies have demonstrated that microRNAs participate in the development of osteosarcoma by acting as tumour suppressor or tumour-promoting genes. We investigated the role of miR-504 in the growth and metastasis of osteosarcoma. The expression of miR-504 in clinical osteosarcoma samples was higher than that in the adjacent normal tissue and correlated with tumour size and clinical stage. Tumour protein p53-inducible nuclear protein 1 (TP53INP1) was downregulated in the clinical osteosarcoma samples compared with the adjacent normal tissues and was consistently correlated with the clinical stage...
September 21, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29048676/decreased-expression-of-the-augmenter-of-liver-regeneration-results-in-growth-inhibition-and-increased-chemosensitivity-of-acute-t-lymphoblastic-leukemia-cells
#19
Yan Shen, Qi Liu, Shifeng Lou, Yun Luo, Hang Sun, Hanqing Zeng, Jianchuan Deng
Augmenter of liver regeneration (ALR) plays crucial roles in cell survival and growth. Previous studies have demonstrated that ALR exerts a protective effect on toxic agent‑induced cell death in acute T lymphoblastic leukemia cells and ALR knockdown can sensitize cancer cells to radiation. However, the biological functions of ALR against drug resistance in T-cell acute lymphoblastic leukemia are mostly unknown. In the present study, we investigated the effect of small interfering RNA (siRNA)-induced ALR silencing on cell proliferation and sensitivity to vincristine (VCR) of Jurkat cells...
September 21, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29048667/inhibitory-effect-of-black-tea-pigments-theaflavin%C3%A2-3-3-gallate-against-cisplatin-resistant-ovarian-cancer-cells-by-inducing-apoptosis-and-g1-cell-cycle-arrest
#20
Haibo Pan, Fang Wang, Gary O Rankin, Yon Rojanasakul, Youying Tu, Yi Charlie Chen
Adverse side effects and acquired resistance to conventional chemotherapy based on platinum drive the exploration of other selective anticancer drugs. Theaflavin‑3-gallate (TF2a) and theaflavin‑3'-gallate (TF2b), theaflavin monomers in black tea, exhibited a potent growth inhibitory effect on cisplatin-resistant ovarian cancer A2780/CP70 cells and were less cytotoxic to normal ovarian IOSE-364 cell line. Flow cytometry analysis and western blotting indicated that TF2a and TF2b induced apoptosis and G1 cell cycle arrest in ovarian cancer A2780/CP70 cells...
October 3, 2017: International Journal of Oncology
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