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https://www.readbyqxmd.com/read/28871079/sirt6-deficiency-exacerbates-podocyte-injury-and-proteinuria-through-targeting-notch-signaling
#1
Min Liu, Kaili Liang, Junhui Zhen, Meng Zhou, Xiaojie Wang, Ziying Wang, Xinbing Wei, Yan Zhang, Yu Sun, Zhuanli Zhou, Hua Su, Chun Zhang, Ningjun Li, Chengjiang Gao, Jun Peng, Fan Yi
Podocyte injury is a major determinant of proteinuric kidney disease and the identification of potential therapeutic targets for preventing podocyte injury has clinical importance. Here, we show that histone deacetylase Sirt6 protects against podocyte injury through epigenetic regulation of Notch signaling. Sirt6 is downregulated in renal biopsies from patients with podocytopathies and its expression correlates with glomerular filtration rate. Podocyte-specific deletion of Sirt6 exacerbates podocyte injury and proteinuria in two independent mouse models, diabetic nephropathy, and adriamycin-induced nephropathy...
September 4, 2017: Nature Communications
https://www.readbyqxmd.com/read/28862627/analysis-of-the-microvascular-morphology-and-hemodynamics-of-breast-cancer-in-mice-using-spring-8-synchrotron-radiation-microangiography
#2
Masae Torii, Toshifumi Fukui, Masashi Inoue, Shotaro Kanao, Keiji Umetani, Mikiyasu Shirai, Tadakatsu Inagaki, Hirotsugu Tsuchimochi, James T Pearson, Masakazu Toi
Tumor vasculature is characterized by morphological and functional abnormalities. However, analysis of the dynamics in blood flow is still challenging because of limited spatial and temporal resolution. Synchrotron radiation (SR) microangiography above the K-edge of the iodine contrast agent can provide high-contrast imaging of microvessels in time orders of milliseconds. In this study, mice bearing the human breast cancer cell lines MDAMB231 and NOTCH4 overexpression in MDAMB231 (MDAMB231(NOTCH4+)) and normal mice were assessed using SR microangiography...
September 1, 2017: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/28676722/the-role-of-the-notch-signal-pathway-in-mucosal-cell-metaplasia-in-mouse-acute-otitis-media
#3
Xiang Liu, Ning Cong, Xiang Cheng, Rui Ma, Jing Wang, Yi-Bo Huang, Meng Zhao, Xin-Wei Wang, Fang-Lu Chi, Dong-Dong Ren
Otitis media (OM) is a major cause of morbidity in pediatric and adult patients. This inflammatory condition is characterized by mucous cell hyperplasia that is thought to produce mucins from the middle ear mucosa. We are interested in the role of Notch signalling pathway in this inflammatory process. Using an acute otitis media (AOM) mouse model through injection of Streptococcus Pneumoniae into the middle ear, histopathologic examination and quantitative RT-PCR, acute inflammation with the thickness of mucosa, Goblet cell hyperplasia, and cilia loss were determined and gene expression related to the Notch signaling pathway were evaluated...
July 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28624953/genome-wide-analysis-of-differential-dna-methylation-in-silver-russell-syndrome
#4
Di Wu, Chunxiu Gong, Chang Su
Silver-Russell Syndrome (SRS) is clinically heterogeneous disorder characterized by low birth weight, postnatal growth restriction, and variable dysmorphic features. Current evidence strongly implicates imprinted genes as an important etiology of SRS. Although almost half of the patients showed DNA hypomethylation at the H19/IGF2 imprinted domain, and approximately 7%-10% of SRS patients have maternal uniparental disomy of chromosome 7 (UPD (7) mat); the rest of the SRS patients shows unknown etiology. In this study, we investigate whether there are further DNA methylation defects in SRS patients...
July 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28623973/dynamic-maternal-and-fetal-notch-activity-and-expression-in-placentation
#5
Heather I Levin, Chantae S Sullivan-Pyke, Virginia E Papaioannou, Ronald J Wapner, Jan K Kitajewski, Carrie J Shawber, Nataki C Douglas
INTRODUCTION: Murine placentation requires trophoblast Notch2, while the Notch ligand, JAGGED1, is reduced in invasive trophoblasts from women with preeclampsia. However, the placental cells with active Notch signaling and expression of other Notch proteins and ligands in placentation have yet to be defined. We sought to identify endothelial cell and trophoblast subtypes with canonical Notch signaling in the decidua and placenta and correlate this to expression of Notch proteins and ligands...
July 2017: Placenta
https://www.readbyqxmd.com/read/28617548/bioinformatic-analysis-of-prognostic-value-of-arap3-in-breast-cancer-and-the-associated-signaling-pathways
#6
J-J Han, B-R Du, C-H Zhang
OBJECTIVE: In this study, we tried to pool previous annotated genomic data to assess the association between ARAP3 expression and metastatic relapse (MR) risk in patients with breast cancer. Moreover, we also investigated the signaling pathways in which ARAP3 might be involved in breast cancer. MATERIALS AND METHODS: The raw microarray data (GDS5666) that compared gene transcriptional profiles of 4T1 derived lung-aggressive explant and primary tumor explant were reanalyzed to identify the dysregulated genes...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28587423/notch4-signaling-pathway-in-a-kawasaki-disease-mouse-model-induced-by-lactobacillus-casei-cell-wall-extract
#7
Lichao Gao, Songling Fu, Wei Wang, Chunhong Xie, Yiying Zhang, Fangqi Gong
The present study aimed to explore the role of the Notch4 signaling pathway in a mouse model of Kawasaki disease (KD) induced by Lactobacillus casei cell wall extract (LCWE). BALB/c male mice (4-6 weeks old) were intraperitoneally injected with 500 µg LCWE in phosphate-buffered saline (PBS) or PBS alone (control group). At days 3, 7, 14 and 28, the numbers of circulating endothelial progenitor cells (EPCs) in the peripheral blood and the expression of Notch4 on the surface of EPCs were detected. In addition, the levels of vascular cell adhesion molecule 1 (VCAM-1) and P-selectin in the roots of coronary arteries were evaluated...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28568708/prognostic-value-of-notch-receptors-in-postsurgical-patients-with-hepatitis-b-virus-related-hepatocellular-carcinoma
#8
Tingdong Yu, Chuangye Han, Guangzhi Zhu, Xiwen Liao, Wei Qin, Chengkun Yang, Zhen Liu, Hao Su, Xiaoguang Liu, Long Yu, Zhengtao Liu, Sicong Lu, Zhiwei Chen, Yu Liang, Jianlu Huang, Xue Qin, Ying Gui, Jiaquan Li, Tao Peng
Hepatocellular carcinoma (HCC) is one of the most prevalent malignancies and a major cause of cancer involved death worldwide. Prognosis remains poor because of high recurrence rates and lack of effective relapse prevention strategies. Notch pathway plays an important role in tumor progression and metastasis, and it is associated with the prognosis of cancer. A total of 465 hepatitis B virus (HBV)-related HCC patients who underwent surgery were enrolled. Single nucleotide polymorphisms (SNP) of Notch pathway receptors were genotyped using Sanger DNA sequencing...
July 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28560257/generating-testable-hypotheses-for-schizophrenia-and-rheumatoid-arthritis-pathogenesis-by-integrating-epidemiological-genomic-and-protein-interaction-data
#9
Tulsi A Malavia, Srilakshmi Chaparala, Joel Wood, Kodavali Chowdari, Konasale M Prasad, Lora McClain, Anil G Jegga, Madhavi K Ganapathiraju, Vishwajit L Nimgaonkar
Patients with schizophrenia and their relatives have reduced prevalence of rheumatoid arthritis. Schizophrenia and rheumatoid arthritis genome-wide association studies also indicate negative genetic correlations, suggesting that there may be shared pathogenesis at the DNA level or downstream. A portion of the inverse prevalence could be attributed to pleiotropy, i.e., variants of a single nucleotide polymorphism that could confer differential risk for these disorders. To study the basis for such an interrelationship, we initially compared lists of single nucleotide polymorphisms with significant genetic associations (p < 1(e-8)) for schizophrenia or rheumatoid arthritis, evaluating patterns of linkage disequilibrium and apparent pleiotropic risk profiles...
2017: NPJ Schizophrenia
https://www.readbyqxmd.com/read/28538208/notch4-and-mhc%C3%A2-class-ii-polymorphisms-are-associated-with%C3%A2-hcv-related-benign-and-malignant-lymphoproliferative-diseases
#10
Laura Gragnani, Elisa Fognani, Valli De Re, Massimo Libra, Adriana Garozzo, Patrizio Caini, Guia Cerretelli, Andrea Giovannelli, Serena Lorini, Monica Monti, Silvia Bagnoli, Irene Piaceri, Anna Linda Zignego
Mixed cryoglobulinemia (MC), is a HCV-related, clinically benign, lymphoproliferative disorder (LPD) that may evolve into a non Hodgkin's lymphoma (NHL). Significant associations were found between two single nucleotide polymorphisms near NOTCH4 (rs2071286) and the HLA class II (rs9461776) genes and HCV-related MC syndrome (MCS). We analyzed NOTCH4 rs2071286 and HLA-II rs9461776 in 3 HCV-related LPD groups (asymptomatic MC, MCS, NHL) with HCV infection without lymphoproliferative disorders.We found a positive relationship between NOTCH4 rs207186 T minor allele frequency (MAF) and patients with HCV-related LPDs at risk of NHL (Chi-square test for trend = 14...
March 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28482141/notch-pathway-is-active-during-osteogenic-differentiation-of-human-bone-marrow-mesenchymal-stem-cells-induced-by-pulsed-electromagnetic-fields
#11
Leila Bagheri, Agnese Pellati, Paola Rizzo, Giorgio Aquila, Leo Massari, Monica De Mattei, Alessia Ongaro
Pulsed electromagnetic fields (PEMFs) have been used to treat bone diseases, particularly non-union healing. Although it is known that PEMFs promote the osteogenic differentiation of human mesenchymal stem cells (hMSCs), to date PEMF molecular mechanisms remain not clearly elucidated. The Notch signaling is a highly conserved pathway which regulates cell fate decisions and skeletal development. The aim of this study was to investigate if the known PEMF-induced osteogenic effects may involve the modulation of the Notch pathway...
May 8, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28415574/prognostic-roles-of-notch-receptor-mrna-expression-in-human-ovarian-cancer
#12
Chuan Chen, Xiaojiao Wang, Shunping Huang, Lin Wang, Lili Han, Songtao Yu
Aberrant activation of Notch signaling pathway has been correlated with high grade ovarian carcinoma and carcinogenesis. However, the predictive and prognostic values of Notch signaling pathway in ovarian cancer patients remains unclear. We utilize "The Kaplan-Meier plotter" (KM plotter) background database to access the prognostic values including overall survival (OS), progression-free survival (PFS), as well as post-progression survival (PPS) of four Notch receptor mRNA expression in ovarian cancer patients...
May 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28256194/polymorphic-variations-associated-with-doxorubicin-induced-cardiotoxicity-in-breast-cancer-patients
#13
Valentina K Todorova, Issam Makhoul, Ishwori Dhakal, Jeanne Wei, Annjanette Stone, Weleetka Carter, Aaron Owen, V Suzanne Klimberg
Doxorubicin (DOX) is a commonly used antineoplastic agent for treatment of various malignancies, and its use is associated with unpredictable cardiotoxicity. Susceptibility to DOX cardiotoxicity is largely patient-dependent suggesting genetic predisposition. We have previously found that individual sensitivity to DOX-cardiotoxicity was associated with differential expression of genes implicated in inflammatory response and immune trafficking, which was consistent with the increasing number of reports highlighting the important role of HLA complex polymorphism in hypersensitivity to drug toxicity...
March 2, 2017: Oncology Research
https://www.readbyqxmd.com/read/28185609/olfactory-ensheathing-cells-inhibit-gliosis-in-retinal-degeneration-by-downregulation-of-the-m%C3%A3-ller-cell-notch-signaling-pathway
#14
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...
June 9, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28143891/genome-wide-methylation-profiles-in-coronary-artery-ectasia
#15
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 have shown that risk factors for CAE were 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. Wilcoxon's rank sum tests revealed 89 genes with significantly different methylation levels (P<0...
April 1, 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
#16
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
#17
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...
February 21, 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
#18
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
#19
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
#20
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
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