keyword
MENU ▼
Read by QxMD icon Read
search

Cell growth

keyword
https://www.readbyqxmd.com/read/29245136/small-maf-functions-in-the-maintenance-of-germline-stem-cells-in-the-drosophila-testis
#1
Sharon Wui Sing Tan, George W Yip, Toshio Suda, Gyeong Hun Baeg
Reactive oxygen species (ROS) are byproducts generated during normal cellular metabolism, and redox states have been shown to influence stem cell self-renewal and lineage commitment across phyla. However, the downstream effectors of ROS signaling that control stem cell behavior remain largely unexplored. Here, we used the Drosophila testis as an in vivo model to identify ROS-induced effectors that are involved in the differentiation process of germline stem cells (GSCs). In the Affymetrix microarray analysis, 152 genes were either upregulated or downregulated during GSC differentiation induced by elevated levels of ROS, and a follow-up validation of the gene expression by qRT-PCR showed a Spearman's rho of 0...
December 8, 2017: Redox Biology
https://www.readbyqxmd.com/read/29245122/reduction-of-cancer-cell-viability-by-synergistic-combination-of-photodynamic-treatment-with-the-inhibition-of-the-id-protein-family
#2
Cornelia Roschger, Thomas Verwanger, Barbara Krammer, Chiara Cabrele
The inhibitor of DNA binding and cell differentiation (Id) proteins are dominant negative regulators of the helix-loop-helix transcription factor family and play a key role during development as well as in vascular disorders and cancer. In fact, impairing the Id-protein activity in cancer cells reduces cell growth and even chemoresistance. Recently, we have shown that a synthetic Id-protein ligand (1Y) consisting of a cyclic nonapeptide can reduce the viability of the two breast cancer cell lines MCF-7 and T47D and of the bladder cancer cells T24 to about 50% at concentrations ≥100μM...
December 5, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29245087/genotyping-of-common-egfr-mutations-in-lung-cancer-patients-by-electrochemical-biosensor
#3
Xiu-Hua Weng, Xiong-Wei Xu, Chang-Lian Wang, Wei-Wei Lin, Ai-Lin Liu, Wei Chen, Xin-Hua Lin
In this study, we constructed a sandwich-type biosensor to identify six common types of mutations in exon 19 of the epidermal growth factor receptor (EGFR) gene, and tested them using tissue samples from patients with non-small cell lung carcinomas. Considering the characteristics that different locations of non-complementary in DNA probes resulting in different hybridization efficiency, we investigated the design of DNA capture probes with varying non-complementary sequence locations in an effort to optimize the selectivity of the biosensor...
December 9, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29245078/analysis-of-nras-gain-in-657-patients-with-melanoma-and-evaluation-of-its-sensitivity-to-a-mek-inhibitor
#4
Junya Yan, Xiaowen Wu, Jiayi Yu, Huan Yu, Tianxiao Xu, Kevin M Brown, Xue Bai, Jie Dai, Meng Ma, Huan Tang, Lu Si, Zhihong Chi, Xinan Sheng, Chuanliang Cui, Yan Kong, Jun Guo
BACKGROUND: Neuroblastoma rat-sarcoma (NRAS) mutations have been described in Chinese patients with melanoma. However, the status and the clinical significance of NRAS gain have not been investigated on a large scale. METHODS: A total of 657 melanoma samples were included in the study. NRAS copy number was examined using the QuantiGene Plex DNA assay. The sensitivities of cell lines and patient-derived xenograft (PDX) models containing NRAS gain to a MAP/ERK kinase (MEK) inhibitor (binimetinib) were also evaluated...
December 11, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29245072/phloretin-attenuates-mucus-hypersecretion-and-airway-inflammation-induced-by-cigarette-smoke
#5
Hao Wang, Ting Yang, Tao Wang, Nanya Hao, Yongchun Shen, Yanqiu Wu, Zhicheng Yuan, Lei Chen, Fuqiang Wen
BACKGROUNDS: Cigarette smoke (CS)-induced airway mucus hypersecretion and inflammation are the prominent features of chronic obstructive pulmonary disease (COPD). As an anti-inflammatory flavonoid, phloretin was found to be involved in various inflammatory disorders such as sepsis. In this study, the effects of phloretin on CS-induced airway mucin secretion and inflammation were investigated in vivo and in vitro. METHODS: Phloretin dissolved in 1% DMSO was daily injected intraperitoneally to mice, which were then exposed to CS for four weeks...
December 12, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29245068/overexpression-of-microrna-375-impedes-platelet-derived-growth-factor-induced-proliferation-and-migration-of-human-fetal-airway-smooth-muscle-cells-by-targeting-janus-kinase-2
#6
Yamei Ji, Xin Yang, Huixia Su
The abnormal proliferation and migration of airway smooth muscle (ASM) cells play a critical role in airway remodeling during the development of asthma. MicroRNAs (miRNAs) have emerged as critical regulators of ASM cell proliferation and migration in airway remodeling. In this study, we aimed to investigate the potential role of miR-375 in the regulation of platelet-derived growth factor (PDGF)-induced fetal ASM cell proliferation and migration. Our results showed that miR-375 expression was significantly decreased in fetal ASM cells that were treated with PDGF...
December 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29245016/preferential-myofibroblast-differentiation-of-cardiac-mesenchymal-progenitor-cells-in-the-presence-of-atrial-fibrillation
#7
Elisa Gambini, Gianluca Lorenzo Perrucci, Beatrice Bassetti, Gabriella Spaltro, Giulia Campostrini, Maria Chiara Lionetti, Alberto Pilozzi, Federico Martinelli, Andrea Faruggia, Dario DiFrancesco, Andrea Barbuti, Giulio Pompilio
Atrial fibrillation (AF) is characterized by electrical, contractile, and structural remodeling mediated by interstitial fibrosis. It has been shown that human cardiac mesenchymal progenitor cells (CMPCs) can be differentiated into endothelial, smooth muscle, and fibroblast cells. Here, we have investigated, for the first time, the contribution of CMPCs in the fibrotic process occurring in AF. As expected, right auricolae samples displayed significantly higher fibrosis in AF vs control (CTR) patients. In tissue samples of AF patients only, double staining for c-kit and the myofibroblast marker α-smooth muscle actin (α-SMA) was detected...
November 27, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29245011/oncogenic-role-of-thor-a-conserved-cancer-testis-long-non-coding-rna
#8
Yasuyuki Hosono, Yashar S Niknafs, John R Prensner, Matthew K Iyer, Saravana M Dhanasekaran, Rohit Mehra, Sethuramasundaram Pitchiaya, Jean Tien, June Escara-Wilke, Anton Poliakov, Shih-Chun Chu, Sahal Saleh, Keerthana Sankar, Fengyun Su, Shuling Guo, Yuanyuan Qiao, Susan M Freier, Huynh-Hoa Bui, Xuhong Cao, Rohit Malik, Timothy M Johnson, David G Beer, Felix Y Feng, Weibin Zhou, Arul M Chinnaiyan
Large-scale transcriptome sequencing efforts have vastly expanded the catalog of long non-coding RNAs (lncRNAs) with varying evolutionary conservation, lineage expression, and cancer specificity. Here, we functionally characterize a novel ultraconserved lncRNA, THOR (ENSG00000226856), which exhibits expression exclusively in testis and a broad range of human cancers. THOR knockdown and overexpression in multiple cell lines and animal models alters cell or tumor growth supporting an oncogenic role. We discovered a conserved interaction of THOR with IGF2BP1 and show that THOR contributes to the mRNA stabilization activities of IGF2BP1...
December 14, 2017: Cell
https://www.readbyqxmd.com/read/29244973/cooperativity-between-antibiotics-and-antiseptics-testing-the-bactericidal-effect
#9
S Jenull, H Laggner, I Hassl, B Velimirov, M Huettinger, N Zemann
OBJECTIVE: Treatment with antibiotics together with local application of antiseptics is common in wound care. We investigated the effectiveness of an antiseptic in two variations: octenidine (Oct) and octenidine+ (Oct+ with isotonic glucose addition). METHOD: Using the agar diffusion test with cultures of pathogenic Staphylococcus aureus and the non-pathogenic Bordetella petrii, we compared the effectiveness of octenidine to the classical antiseptics beta-isodona (povidone-iodine; PI), chlorhexidine (Chl) and taurolin (Tau) alone, and in combination with various common antibiotics to uncover cooperativity between antiseptics and antibiotics...
December 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/29244827/neuroligin-4x-overexpression-in-human-breast-cancer-is-associated-with-poor-relapse-free-survival
#10
Henry J Henderson, Balasubramanyam Karanam, Rajeev Samant, Komal Vig, Shree R Singh, Clayton Yates, Deepa Bedi
The molecular mechanisms involved in breast cancer progression and metastasis still remain unclear to date. It is a heterogeneous disease featuring several different phenotypes with consistently different biological characteristics. Neuroligins are neural cell adhesion molecules that have been implicated in heterotopic cell adhesion. In humans, alterations in neuroligin genes are implicated in autism and other cognitive diseases. Until recently, neuroligins have been shown to be abundantly expressed in blood vessels and also play a role implicated in the growth of glioma cells...
2017: PloS One
https://www.readbyqxmd.com/read/29244789/pigment-epithelium-derived-factor-from-arpe19-promotes-proliferation-and-inhibits-apoptosis-of-human-umbilical-mesenchymal-stem-cells-in-serum-free-medium
#11
Dah-Ching Ding, Yao-Tseng Wen, Rong-Kung Tsai
Clinical expansion of mesenchymal stem cells (MSCs) is hampered by the lack of knowledge regarding how to prevent MSC apoptosis and promote their proliferation in serum-free medium. Our in vitro studies demonstrated that human umbilical cord MSCs (HUCMSCs) underwent apoptosis in the serum-free medium. When HUCMSCs were co-cultured with retinal pigment epithelial cells (ARPE19), however, HUCMSCs exhibited normal growth and morphology in serum-free medium. Their colony formation was promoted by the conditioned medium (CM) of ARPE19 cells on Matrigel...
December 15, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29244745/immunotherapeutic-potential-of-oncolytic-h-1-parvovirus-hints-of-glioblastoma-microenvironment-conversion-towards-immunogenicity
#12
Assia L Angelova, Milena Barf, Karsten Geletneky, Andreas Unterberg, Jean Rommelaere
Glioblastoma, one of the most aggressive primary brain tumors, is characterized by highly immunosuppressive microenvironment. This contributes to glioblastoma resistance to standard treatment modalities and allows tumor growth and recurrence. Several immune-targeted approaches have been recently developed and are currently under preclinical and clinical investigation. Oncolytic viruses, including the autonomous protoparvovirus H-1 (H-1PV), show great promise as novel immunotherapeutic tools. In a first phase I/IIa clinical trial (ParvOryx01), H-1PV was safe and well tolerated when locally or systemically administered to recurrent glioblastoma patients...
December 15, 2017: Viruses
https://www.readbyqxmd.com/read/29244744/a-carbon-dioxide-limitation-inducible-protein-cola-supports-the-growth-of-synechococcus-sp-pcc-7002
#13
Ginga Shimakawa, Satoru Watanabe, Chikahiro Miyake
A limitation in carbon dioxide (CO₂), which occurs as a result of natural environmental variation, suppresses photosynthesis and has the potential to cause photo-oxidative damage to photosynthetic cells. Oxygenic phototrophs have strategies to alleviate photo-oxidative damage to allow life in present atmospheric CO₂ conditions. However, the mechanisms for CO₂ limitation acclimation are diverse among the various oxygenic phototrophs, and many mechanisms remain to be discovered. In this study, we found that the gene encoding a CO₂ limitation-inducible protein, ColA, is required for the cyanobacterium Synechococcus sp...
December 15, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29244724/rlj-rgd3-suppresses-the-growth-of-heya8-cells-in-nude-mice
#14
Yuanyuan Zheng, Li Lv, Longda Yi, Rui Wu, Rong Xiao, Jihong Wang
In the previous study, rLj-RGD3, a recombinant toxin protein which contains three RGD motifs, was reported to not only inhibit the proliferation of an ovarian cancer cell line, HeyA8 cells, by inducing apoptosis, but also block their adhesion, migration and invasion processes. However, whether rLj-RGD3 could also suppress the tumor growth in HeyA8 xenografted mice has not been reported yet. In the present study, rLj-RGD3 was intraperitoneally injected in the nude mice bearing HeyA8 tumors. Compared with the control group (normal saline), rLj-RGD3 inhibited the tumor growth significantly in the HeyA8 xenografted mice in a dose-dependent manner without affecting their body weights...
December 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29244610/inhibition-of-exosome-release-by-ketotifen-enhances-sensitivity-of-cancer-cells-to-doxorubicin
#15
Farman Matloob Khan, Ekram Saleh, Hussain Alawadhi, Rania Harati, Wolfram-Hubertus Zimmermann, Raafat El-Awady
Exosomes released from cancer cells support metastasis and growth of recipient cells and increase their resistance to chemotherapy. Therapeutic targeting of exosomes is a promising area in cancer research. Our aim is to test the effect of the mast cell stabilizer ketotifen on exosomes release from cancer cells and how this can modify their response to doxorubicin. Exosomes release from three cancer cell lines (MCF7, HeLa and BT549) was assessed by scan electron microscope and exosomes quantification kit. Doxorubicin export within exosomes was monitored flurometrically and cellular sensitivity to doxorubicin ± ketotifen was measured by sulphorhodamine-B and colony formation assays...
December 15, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29244196/iron-overload-induces-g1-phase-arrest-and-autophagy-in-murine-preosteoblast-cells
#16
Wan-Jing Cen, Yi Feng, Shu-Shu Li, Wei-Liang Huang, Tao Zhang, Wu Zhang, Wei-Dong Kong, Jian-Wei Jiang
This study aimed to investigate the cell cycle arrest and autophagy induced by iron overload inMC3T3-E1 cells. MC3T3-E1 cells were cultured in different concentrations of ferric ammonium citrate (FAC), and Perls' Prussian blue reaction was used to detect the iron levels of the cells. CCK-8 assays were used to detect the growth of MC3T3-E1. The level of reactive oxygen species (ROS) within cells was investigated with DCFH-DA. PI staining was used to analyze the cell cycle distribution of MC3T3-E1 cells. Finally, the expression levels of cell cycle related proteins, autophagy related proteins, AKT, p38 MAPK, Stat3 and their downstream proteins were detected with western blot assays...
December 15, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29244195/decellularized-colorectal-cancer-matrix-as-bioactive-microenvironment-for-in-vitro-3d-cancer-research
#17
Martina Piccoli, Edoardo D'Angelo, Sara Crotti, Francesca Sensi, Luca Urbani, Edoardo Maghin, Alan Burns, Paolo De Coppi, Matteo Fassan, Massimo Rugge, Flavio Rizzolio, Antonio Giordano, Pierluigi Pilati, Enzo Mammano, Salvatore Pucciarelli, Marco Agostini
Three-dimensional (3D) cancer models are overlooking the scientific landscape with the primary goal of bridging the gaps between two-dimensional (2D) cell lines, animal models and clinical research. Here we describe an innovative tissue engineering approach applied to colorectal cancer (CRC) starting from decellularized human biopsies in order to generate an organotypic 3D-bioactive model. This in vitro 3D system recapitulates the ultrastructural environment of native tissue as demonstrated by histology, immunohistochemistry, immunofluorescence and scanning electron microscopy analyses...
December 15, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29244172/human-in-vitro-spermatogenesis-from-pluripotent-stem-cells-in-need-of-a-stepwise-differentiation-protocol
#18
C Rombaut, H Mertes, B Heindryckx, E Goossens
Recently, complete in-vitro generation of male gametes starting from pluripotent stem cells was obtained in a mouse model with live offspring as a result. This breakthrough was probably due to the use of a stepwise differentiation protocol taking the tightly regulated in-vivo situation into account. As shown previously, factors of the TGFβ superfamily, metabolites of vitamin A, growth hormones, sex steroids and, most importantly, somatic cell support are major regulators of the development, survival, proliferation and differentiation of male gametes...
December 13, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29244152/regulation-of-t-cell-proliferation-with-drug-responsive-microrna-switches
#19
Remus S Wong, Yvonne Y Chen, Christina D Smolke
As molecular and cellular therapies advance in the clinic, the role of genetic regulation is becoming increasingly important for controlling therapeutic potency and safety. The emerging field of mammalian synthetic biology provides promising tools for the construction of regulatory platforms that can intervene with endogenous pathways and control cell behavior. Recent work has highlighted the development of synthetic biological systems that integrate sensing of molecular signals to regulated therapeutic function in various disease settings...
December 13, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29244122/la-related-protein-1-larp1-repression-of-top-mrna-translation-is-mediated-through-its-cap-binding-domain-and-controlled-by-an-adjacent-regulatory-region
#20
Lucas Philippe, Jean-Jacques Vasseur, Françoise Debart, Carson C Thoreen
Cell growth is a complex process shaped by extensive and coordinated changes in gene expression. Among these is the tightly regulated translation of a family of growth-related mRNAs defined by a 5' terminal oligopyrimidine (TOP) motif. TOP mRNA translation is partly controlled via the eukaryotic initiation factor 4F (eIF4F), a translation factor that recognizes the mRNA 5' cap structure. Recent studies have also implicated La-related protein 1 (LARP1), which competes with eIF4F for binding to mRNA 5' ends. However, it has remained controversial whether LARP1 represses TOP mRNA translation directly and, if so, what features define its mRNA targets...
December 13, 2017: Nucleic Acids Research
keyword
keyword
63804
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"