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https://www.readbyqxmd.com/read/28185609/olfactory-ensheathing-cells-inhibit-gliosis-in-retinal-degeneration-by-down-regulation-of-the-m%C3%A3-ller-cell-notch-signaling-pathway
#1
Jing Xie, Shujia Huo, Yijian Li, Jiaman Dai, Haiwei Xu, Zheng Qin Yin
Retinal regeneration and self-repair, whether in response to injury or degenerative disease, are severely impeded by glial scar formation by Müller cells (specialized retinal macroglia). We have previously demonstrated that the activation of Müller cells and gliosis in the degenerative retina are significantly suppressed by the subretinal transplantation of a mixture of olfactory ensheathing cells (OECs) and olfactory nerve fibroblasts. However, the underlying molecular mechanism has remained elusive. Here, we transplanted purified rat OECs into the subretinal space of pigmented Royal College of Surgeons (RCS) rats, a classic rodent model of retinal degeneration...
February 9, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28143891/genome-wide-methylation-profiles-in-coronary-artery-ectasia
#2
Tzu-Pin Lu, Nai-Chen Chuang, Chin-Yu Cheng, Cheng-An Hsu, Yi-Chih Wang, Yen-Hong Lin, Jen-Kuang Lee, Cho-Kai Wu, Juey-Jen Hwang, Lian-Yu Lin, Shih-Fan Sherri Yeh, Kuo-Liang Chien, Jyh-Ming Jimmy Juang
Coronary artery ectasia (CAE) is a disease characterized by abnormally dilated coronary arteries. The mechanism of CAE remains unclear, and its treatment is limited. Previous studies showed that risk factors for CAE are related to changes in DNA methylation. However, no systematic investigation of methylation profiles has been performed. Therefore, we compared methylation profiles between 12 CAE patients and 12 propensity-matched individuals with normal coronary arteries using microarrays (Illumina HumanMethylation450)...
January 31, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28108315/essential-role-of-notch4-stat3-signaling-in-epithelial-mesenchymal-transition-of-tamoxifen-resistant-human-breast-cancer
#3
Quyen Thu Bui, Ji Hye Im, Sung Baek Jeong, Young-Mi Kim, Sung Chul Lim, Bumseok Kim, Keon Wook Kang
We previously demonstrated that tamoxifen (TAM)-resistant human breast cancer (TAMR-MCF-7) cells showed increased expression of mesenchymal marker proteins compared to the parent MCF-7 cells. Notch is functionally important in the promotion of epithelial-mesenchymal transition (EMT) during both development and tumor progression. Notch1 and Notch4 have been reported as prognostic markers in human breast cancer. Here, we indicated that Notch4, but not Notch1, plays a critical role in the regulation of EMT signaling in TAMR-MCF-7 cells...
April 1, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28061457/prognostic-roles-of-mrna-expression-of-notch-receptors-in-non-small-cell-lung-cancer
#4
Jianwen Xiong, Xiaoqiang Zhang, Xianglai Chen, Yiping Wei, De-Guo Lu, Yun-Wei Han, Jianjun Xu, Dongliang Yu
Notch signalling is aberrantly activated in human non-small cell lung cancer (NSCLC). Nevertheless, the prognostic roles of mRNA expression of four Notch receptors in NSCLC patients remain elusive. In this report, we reported the prognostic roles of Notch receptors in a total of 1,926 NSCLC patients through "The Kaplan-Meier plotter" (KM plotter) database which is capable to assess the effect of 22,277 genes on survival of NSCLC patients. We found that mRNA high expression level of Notch1 was associated with better overall survival (OS) for all NSCLC patients, hazard ratio (HR) 0...
January 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28013300/notch4-signaling-pathway-of-endothelial-progenitor-cells-in-a-kawasaki-disease-model-induced-by-lactobacillus-casei-cell-wall-extract
#5
Huafeng Wang, Yuanyuan Xia, Songling Fu, Wei Wang, Chunhong Xie, Yiying Zhang, Fangqi Gong
The Notch4 signaling pathway of endothelial progenitor cells (EPCs) may play a crucial role in Kawasaki disease (KD). We investigated the proliferation, adhesion, migration, angiogenesis, and expression levels of Notch4, recombination signal-binding protein-Jκ (RBP-Jκ), P-selectin, and vascular cell adhesion molecule-1 (VCAM-1) of bone marrow (BM) EPCs in a KD model induced by Lactobacillus casei cell wall extract. The numbers of BM EPCs decreased significantly in the KD models. The Notch4 expression level on the EPC surface was higher in the KD models than in the controls...
2016: Journal of Vascular Research
https://www.readbyqxmd.com/read/27939630/endosulfan-inhibits-proliferation-through-the-notch-signaling-pathway-in-human-umbilical-vein-endothelial-cells
#6
Jialiu Wei, Lianshuang Zhang, Lihua Ren, Jin Zhang, Yang Yu, Ji Wang, Junchao Duan, Cheng Peng, Zhiwei Sun, Xianqing Zhou
Our previous research showed that endosulfan triggers the extrinsic coagulation pathway by damaging endothelial cells and causes hypercoagulation of blood. To identify the mechanism of endosulfan-impaired endothelial cells, we treated human umbilical vein endothelial cells (HUVECs) with different concentrations of endosulfan, with and without an inhibitor for Notch, N-[N-(3, 5-difluorophenacetyl)-1-alanyl]S-Phenylglycinet-butylester (DAPT, 20 μM), or a reactive oxygen species (ROS) scavenger, N-Acetyl-l-cysteine (NAC, 3 mM), for 24 h...
February 2017: Environmental Pollution
https://www.readbyqxmd.com/read/27906177/-normalizing-the-malignant-phenotype-of-luminal-breast-cancer-cells-via-alpha-v-beta-3-integrin
#7
Hanan Abu-Tayeh, Keren Weidenfeld, Alisa Zhilin-Roth, Sagi Schif-Zuck, Sonja Thaler, Cristina Cotarelo, Tuan Z Tan, Jean P Thiery, Jeffrey E Green, Geula Klorin, Edmond Sabo, Jonathan P Sleeman, Maty Tzukerman, Dalit Barkan
Reestablishing tissue organization of breast cancer cells into acini was previously shown to override their malignant phenotype. In our study, we demonstrate that alpha(v)beta(3) integrin (Int-αvβ3), previously shown to play a role in cancer progression, promoted differentiation and growth arrest of organoids derived from luminal A breast cancer cells grown in their relevant three-dimensional microenvironment. These organoids differentiated into normal-like acini resembling a benign stage of breast tissue...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27900027/notch4-inhibition-reduces-migration-and-invasion-and-enhances-sensitivity-to-docetaxel-by-inhibiting-akt-fascin-in-pancreatic-cancer-cells
#8
Cui-Juan Qian, Yi-Yi Chen, Xin Zhang, Fu-Qiang Liu, Ting-Ting Yue, Bei Ye, Jun Yao
Overexpression of Notch4 is associated with a variety of tumor types. Only sparse information exists on Notch4 expression in pancreatic cancer (PC). The present study demonstrated that Notch4 expression was significantly upregulated in PC cell lines compared with a non-transformed pancreatic epithelial cell line, HPDE6c-7. To investigate the possible role of Notch4 in PC cells, an RNA interference approach was used to silence Notch4 expression. The results revealed that small interfering RNA (siRNA) targeting Notch4 significantly impeded the viability, migration and invasion abilities of PC cells in vitro...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27829420/association-of-a-rare-notch4-coding-variant-with-systemic-sclerosis-a-family-based-whole-exome-sequencing-study
#9
Christopher J Cardinale, Dong Li, Lifeng Tian, John J Connolly, Michael E March, Cuiping Hou, Fengxiang Wang, James Snyder, Cecilia E Kim, Rosetta M Chiavacci, Patrick M Sleiman, Jon M Burnham, Hakon Hakonarson
BACKGROUND: Systemic sclerosis (SSc) is a rheumatologic disease with a multifactorial etiology. Genome-wide association studies imply a polygenic, complex mode of inheritance with contributions from variation at the human leukocyte antigen locus and non-coding variation at a locus on chromosome 6p21, among other modestly impactful loci. Here we describe an 8-year-old female proband presenting with diffuse cutaneous SSc/scleroderma and a family history of SSc in a grandfather and maternal aunt...
November 9, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27812766/hypoxia-selective-inhibition-of-angiogenesis-development-by-nami-a-analogues
#10
Maria Oszajca, Guillaume Collet, Grażyna Stochel, Claudine Kieda, Małgorzata Brindell
The antimetastatic ruthenium(III) complex (H2Im)[trans-RuCl4(HIm)(DMSO)] (NAMI-A) as well as its two analogues (H2Ind)[trans-RuCl4(HInd)(DMSO)] (Ru-Ind) and (HIsq)[trans-RuCl4(Isq)(DMSO)] (Ru-Isq) (HIm-imidazole, HInd-indazole, Isq-isoquinoline, DMSO-dimethyl sulfoxide) were tested for their effect on endothelial cell functions in vitro on human skin microvascular endothelial cells (HSkMEC) and human endothelial progenitor cells (HPEC-CB.2) under normoxic (21 % O2) and hypoxic (1 % O2) conditions. All studied complexes showed very low cytotoxicity profiles towards both mature microvascular and precursor endothelial cells (ECs), independently of oxygen concentration...
December 2016: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/27671002/a-six-cpg-panel-with-dna-methylation-biomarkers-predicting-treatment-response-of-chemoradiation-in-esophageal-squamous-cell-carcinoma
#11
Wei-Lun Chang, Wu-Wei Lai, I-Ying Kuo, Chien-Yu Lin, Pei-Jung Lu, Bor-Shyang Sheu, Yi-Ching Wang
BACKGROUND: Prognosis of esophageal squamous cell carcinoma (ESCC) patients remains poor, and the chemoradiotherapy (CRT) applied to ESCC patients often failed. Therefore, development of biomarkers to predict CRT response is immensely important for choosing the best treatment strategy of an individual patient. METHODS: The methylation array and pyrosequencing methylation assay were performed in pre-treatment endoscopic biopsies to identify probes with differential CpG methylation levels between good and poor CRT responders in a cohort of 12 ESCC patients...
September 26, 2016: Journal of Gastroenterology
https://www.readbyqxmd.com/read/27626805/protein-profiling-of-bladder-urothelial-cell-carcinoma
#12
Jinghai Hu, Fei Ye, Miao Cui, Peng Lee, Chengguo Wei, Yuanyuan Hao, Xiaoqing Wang, Yanbo Wang, Zhihua Lu, Matthew Galsky, Russell McBride, Li Wang, Dongwen Wang, Carlos Cordon-Cardo, Chunxi Wang, David Y Zhang
This study aimed to detect protein changes that can assist to understand the underlying biology of bladder cancer. The data showed forty five proteins were found to be differentially expressed comparing tumors vs non-tumor tissues, of which EGFR and cdc2p34 were correlated with muscle invasion and histological grade. Ten proteins (ß-catenin, HSP70, autotaxin, Notch4, PSTPIP1, DPYD, ODC, cyclinB1, calretinin and EPO) were able to classify muscle invasive BCa (MIBC) into 2 distinct groups, with group 2 associated with poorer survival...
2016: PloS One
https://www.readbyqxmd.com/read/27550925/original-research-featured-article-imatinib-mesylate-gleevec-inhibits-notch-and-c-myc-signaling-five-day-treatment-permanently-rescues-mammary-development
#13
Robert Callahan, Barry A Chestnut, Ahmed Raafat
Wap-Int3 transgenic females expressing the Notch4 intracellular domain (designated Int3) from the whey acidic protein promoter exhibit two phenotypes in the mammary gland: blockage of lobuloalveolar development and lactation, and tumor development with 100% penetrance. Previously, we have shown that treatment of Wap-Int3 tumor bearing mice with Imatinib mesylate (Gleevec) is associated with complete regression of the tumor. In the present study, we show that treatment of Wap-Int3 mice during day 1 through day 6 of pregnancy with Gleevec leads to the restoration of their lobuloalveolar development and ability to lactate in subsequent pregnancies in absence of Gleevec treatment...
January 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27458977/the-clinical-significance-of-mir-34a-in-pancreatic-ductal-carcinoma-and-associated-molecular-and-cellular-mechanisms
#14
Li-Min Long, Jun-Kun Zhan, Hai-Qin Wang, Shuang Li, Yi-Yin Chen, You-Shuo Liu
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) exhibits poor prognosis and resistance to chemotherapy. This study was to identify the biomarkers associated with the progression, poor prognosis and chemoresistance of PDAC. METHODS: miR-34a and miR-150 levels in the plasma and tissues from PDAC patients were measured by real-time PCR. Xenograft PDAC tumor models were established in mice by inoculation of CD133+ stem cells isolated from PDAC tumors. Protein expression was measured by Western blot...
2017: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/27446436/translational-significance-of-nodal-cripto-1-and-notch4-in-adult-nevi
#15
Luigi Strizzi, Naira V Margaryan, Pedram Gerami, Zahra Haghighat, Paul W Harms, Gabriele Madonna, Gerardo Botti, Paolo A Ascierto, Mary J C Hendrix
The TGF-β associated growth factor Nodal is highly expressed in aggressive metastatic melanoma. Determining the risk for melanomagenesis from Nodal expression in nevi prior to the development of melanoma may be useful for both the screening and prevention of melanoma. Tissue sections of human adult nevi with or without a history of melanoma were stained by immunohistochemistry (IHC) for Nodal, the Nodal co-receptor Cripto-1, and Notch4, which have previously been shown to be associated with Nodal expression in melanoma...
August 2016: Oncology Letters
https://www.readbyqxmd.com/read/27354212/adam10-dependent-signaling-through-notch1-and-notch4-controls-development-of-organ-specific-vascular-beds
#16
Rolake O Alabi, Krzysztof Glomski, Coline Haxaire, Gisela Weskamp, Sébastien Monette, Carl P Blobel
RATIONALE: Endothelial Notch signaling is critical for early vascular development and survival. Yet, previously described mice lacking endothelial a disintegrin and metalloproteinase 10 (ADAM10), a key regulator of Notch signaling, survived into adulthood with organ-specific vascular defects. These findings raised questions about whether these vascular defects were related to Notch signaling or other functions of ADAM10. OBJECTIVE: The aims of the study are to determine whether compensatory or redundant functions of ADAM17 in Notch signaling can explain the survival of Adam10ΔEC mice, explore the contribution of different Tie2-Cre transgenes to the differences in survival, and establish whether the Adam10ΔEC vascular phenotypes can be recapitulated by inactivation of Notch receptors in endothelial cells...
August 5, 2016: Circulation Research
https://www.readbyqxmd.com/read/27337918/-up-regulation-of-notch1-inhibits-proliferation-and-differentiation-of-osteoclast-in-vitro
#17
Yilin Ping, Feng Lou, Xiao Yang, Ping Zhang
OBJECTIVE: This study aimed to explore the effect of the up-regulation of Notch1 on osteoclastogenesis induced to osteoclasts by receptor activator for nuclear factor-kappaB ligand (RANKL) and macrophage colony-stimulating factors (MCSF) in vitro. METHODS: The bone marrow stem cells (BMSCs) of Rosa(-notch1) mice were cultured and induced to osteoclasts by RANKL and MCSF. The BMSCs were transfected with the Ad-Cre-green fluorescent protein (GFP) virus or Ad-GFP virus...
April 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/27318676/evaluation-of-european-schizophrenia-gwas-loci-in-asian-populations-via-comprehensive-meta-analyses
#18
Xiao Xiao, Xiong-Jian Luo, Hong Chang, Zichao Liu, Ming Li
Schizophrenia is a severe and highly heritable neuropsychiatric disorder. Recent genetic analyses including genome-wide association studies (GWAS) have implicated multiple genome-wide significant variants for schizophrenia among European populations. However, many of these risk variants were not largely validated in other populations of different ancestry such as Asians. To validate whether these European GWAS significant loci are associated with schizophrenia in Asian populations, we conducted a systematic literature search and meta-analyses on 19 single nucleotide polymorphisms (SNPs) in Asian populations by combining all available case-control and family-based samples, including up to 30,000 individuals...
June 18, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27234159/notch4-cancer-stem-like-cells-promote-the-metastatic-and-invasive-ability-of-melanoma
#19
Xian Lin, Baocun Sun, Dongwang Zhu, Xiulan Zhao, Ran Sun, Yanhui Zhang, Danfang Zhang, Xueyi Dong, Qiang Gu, Yanlei Li, Fang Liu
Sphere formation in conditioned serum-free culture medium supplemented with epidermal growth factor and basic fibroblast growth factor (tumorospheres) is considered useful for the enrichment of cancer stem-like cells, also known as tumor-initiating cells. We used a gene expression microarray to investigate the gene expression profile of melanoma cancer stem-like cells (MCSLCs). The results showed that MCSLCs highly expressed the following Notch signaling pathway molecules: Notch3 (NM_008716), Notch4 (NM_010929), Dtx4 (NM_172442), and JAG2 (NM_010588)...
August 2016: Cancer Science
https://www.readbyqxmd.com/read/27231971/notch4-gene-polymorphisms-as-potential-risk-factors-for-brain-arteriovenous-malformation-development-and-hemorrhagic-presentation
#20
Daniel Delev, Anna Pavlova, Alexander Grote, Azize Boström, Anke Höllig, Johannes Schramm, Rolf Fimmers, Johannes Oldenburg, Matthias Simon
OBJECTIVE Arteriovenous malformations (AVMs) of the brain are a frequent and important cause of intracranial hemorrhage in young adults. Little is known about the molecular-genetic pathomechanisms underlying AVM development. Genes of the NOTCH family control the normal development of vessels and proper arteriovenous specification. Transgenic mice with constitutive expression of active NOTCH4 frequently develop AVMs. Here, the authors report a genetic association study investigating possible associations between NOTCH4 gene polymorphisms and formation and clinical presentation of AVMs...
May 27, 2016: Journal of Neurosurgery
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