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Notch pathway

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https://www.readbyqxmd.com/read/28238274/primary-human-monocytes-differentiate-into-m2-macrophages-and-involve-notch-1-pathway
#1
Dinender K Singla, Jing Wang, Reetu Singla
The current study investigates whether inhibiting the Notch-1 signaling pathway in primary human monocytes enhances M2 macrophage differentiation. We generated a primary human monocyte cell culture model to understand the effect of the Notch-1 signaling pathway. Monocytes were treated with Notch-1 inhibitors DAPT or siRNA. Our data show that there was a significant increase in the M1 macrophage population demonstrated by iNOS marker in the primary human monocytes treated with apoptotic-conditioned medium (ACM)...
February 25, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28237646/recurrence-associated-genes-in-papillary-thyroid-cancer-an-analysis-of-data-from-the-cancer-genome-atlas
#2
Ming-Nan Chien, Po-Sheng Yang, Jie-Jen Lee, Tao-Yeuan Wang, Yi-Chiung Hsu, Shih-Ping Cheng
BACKGROUND: Recurrence of papillary thyroid cancer is not uncommon, but incorporating clinicopathologic parameters to predict recurrence is suboptimal. The aim of this study was to identify systemically recurrence-associated genes using The Cancer Genome Atlas RNA sequencing database. METHODS: A total of 504 patients with transcriptome sequencing data of the primary neoplasm were included in this study. High and low levels of expression of each gene were defined by median splits...
February 22, 2017: Surgery
https://www.readbyqxmd.com/read/28236705/protective-effects-of-total-flavonoids-in-caragana-against-hypoxia-reoxygenation-induced-injury-in-human-brain-microvascular-endothelial-cells
#3
Qian-Song He, Li Zhang, Zi-Yuan Fan, Guo Feng, Fu-Jiang Wang, Zheng-Qi Liu, Ting Tang, Shi-Xiang Kuang
This study aimed to explore the protective effect of total flavonoids in Caragana against hypoxia/reoxygenation (H/R)-induced injury in human brain microvascular endothelial cells (BMECs). Human BMECs were selected and assigned into control, H/R, H/R+NMP, H/R+Low dose, H/R+Moderate dose, H/R+High dose groups. MTT and Transwell assays were used to detect cell viability and migration, respectively. Cell adhesion rate and tube formation were also detected. Real-time polymerase chain reaction (RT-PCR) and Western blotting were performed to test HIF-1α, VEGF and Notch1 mRNA and protein expressions...
February 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28228521/clustered-brachiopod-hox-genes-are-not-expressed-collinearly-and-are-associated-with-lophotrochozoan-novelties
#4
Sabrina M Schiemann, José M Martín-Durán, Aina Børve, Bruno C Vellutini, Yale J Passamaneck, Andreas Hejnol
Temporal collinearity is often considered the main force preserving Hox gene clusters in animal genomes. Studies that combine genomic and gene expression data are scarce, however, particularly in invertebrates like the Lophotrochozoa. As a result, the temporal collinearity hypothesis is currently built on poorly supported foundations. Here we characterize the complement, cluster, and expression of Hox genes in two brachiopod species, Terebratalia transversa and Novocrania anomalaT. transversa has a split cluster with 10 genes (lab, pb, Hox3, Dfd, Scr, Lox5, Antp, Lox4, Post2, and Post1), whereas N...
February 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28222667/curcumin-inhibits-cancer-progression-through-regulating-expression-of-micrornas
#5
Siying Zhou, Sijie Zhang, Hongyu Shen, Wei Chen, Hanzi Xu, Xiu Chen, Dawei Sun, Shanliang Zhong, Jianhua Zhao, Jinhai Tang
Curcumin, a major yellow pigment and spice in turmeric and curry, is a powerful anti-cancer agent. The anti-tumor activities of curcumin include inhibition of tumor proliferation, angiogenesis, invasion and metastasis, induction of tumor apoptosis, increase of chemotherapy sensitivity, and regulation of cell cycle and cancer stem cell, indicating that curcumin maybe a strong therapeutic potential through modulating various cancer progression. It has been reported that microRNAs as small noncoding RNA molecules are related to cancer progression, which can be regulated by curcumin...
February 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28218276/natural-and-laboratory-mutations-in-kuzbanian-are-associated-with-zinc-stress-phenotypes-in-drosophila-melanogaster
#6
Hung Le Manh, Lain Guio, Miriam Merenciano, Quirze Rovira, Maite G Barrón, Josefa González
Organisms must cope with altered environmental conditions such as high concentrations of heavy metals. Stress response to heavy metals is mediated by the metal-responsive transcription factor 1 (MTF-1), which is conserved from Drosophila to humans. MTF-1 binds to metal response elements (MREs) and changes the expression of target genes. kuzbanian (kuz), a metalloendopeptidase that activates the evolutionary conserved Notch signaling pathway, has been identified as an MTF-1 target gene. We have previously identified a putatively adaptive transposable element in the Drosophila melanogaster genome, named FBti0019170, inserted in a kuz intron...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28217707/microrna-regulation-of-human-pancreatic-cancer-stem-cells
#7
REVIEW
Yi-Fan Xu, Bethany N Hannafon, Wei-Qun Ding
microRNAs (miRNAs) are a group of small non-coding RNAs that function primarily in the post transcriptional regulation of gene expression in plants and animals. Deregulation of miRNA expression in cancer cells, including pancreatic cancer cells, is well documented, and the involvement of miRNAs in orchestrating tumor genesis and cancer progression has been recognized. This review focuses on recent reports demonstrating that miRNAs are involved in regulation of pancreatic cancer stem cells (CSCs). A number of miRNA species have been identified to be involved in regulating pancreatic CSCs, including miR-21, miR-34, miR-1246, miR-221, the miR-17-92 cluster, the miR-200 and let-7 families...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28216142/astrocytic-calcium-waves-signal-brain-injury-to-neural-stem-and%C3%A2-progenitor%C3%A2-cells
#8
Anna Kraft, Eduardo Rosales Jubal, Ruth von Laer, Claudia Döring, Adriana Rocha, Moyo Grebbin, Martin Zenke, Helmut Kettenmann, Albrecht Stroh, Stefan Momma
Brain injuries, such as stroke or trauma, induce neural stem cells in the subventricular zone (SVZ) to a neurogenic response. Very little is known about the molecular cues that signal tissue damage, even over large distances, to the SVZ. Based on our analysis of gene expression patterns in the SVZ, 48 hr after an ischemic lesion caused by middle cerebral artery occlusion, we hypothesized that the presence of an injury might be transmitted by an astrocytic traveling calcium wave rather than by diffusible factors or hypoxia...
February 3, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28215940/elf5-is-a-principal-cell-lineage-specific-transcription-factor-in-the-kidney-that-contributes-to-aqp2-and-avpr2-gene-expression
#9
Justin Grassmeyer, Malini Mukherjee, Jennifer deRiso, Casey Hettinger, Monica Bailey, Satrajit Sinha, Jane E Visvader, Haotian Zhao, Eric Fogarty, Kameswaran Surendran
The mammalian kidney collecting ducts are critical for water, electrolyte and acid-base homeostasis and develop as a branched network of tubular structures composed of principal cells intermingled with intercalated cells. The intermingled nature of the different collecting duct cell types has made it challenging to identify unique and critical factors that mark and/or regulate the development of the different collecting duct cell lineages. Here we report that the canonical Notch signaling pathway components, RBPJ and Presinilin1 and 2, are involved in patterning the mouse collecting duct cell fates by maintaining a balance between principal cell and intercalated cell fates...
February 17, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28215225/transcription-factors-in-breast-cancer-lessons-from-recent-genomic-analyses-and-therapeutic-implications
#10
E Zacksenhaus, J C Liu, Z Jiang, Y Yao, L Xia, M Shrestha, Y Ben-David
Multiplatform genomic analyses have identified 93 frequently altered genes in breast cancer. Of these, as many as 49 genes are directly or indirectly involved in transcription. These include constitutive and inducible DNA-binding transcription factors (DB-TFs, 13 genes), corepressors/coactivators (14 genes), epigenetic (10), and mediator/splicing/rRNA (3) factors. At least nine additional genes are immediate upstream regulators of transcriptional cofactors. G:profiler analysis reveals that these alterations affect cell cycle, development/differentiation, steroid hormone, and chromatin modification pathways...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28212801/notch-signaling-in-vascular-smooth-muscle-cells
#11
J T Baeten, B Lilly
The Notch signaling pathway is a highly conserved pathway involved in cell fate determination in embryonic development and also functions in the regulation of physiological processes in several systems. It plays an especially important role in vascular development and physiology by influencing angiogenesis, vessel patterning, arterial/venous specification, and vascular smooth muscle biology. Aberrant or dysregulated Notch signaling is the cause of or a contributing factor to many vascular disorders, including inherited vascular diseases, such as cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy, associated with degeneration of the smooth muscle layer in cerebral arteries...
2017: Advances in Pharmacology
https://www.readbyqxmd.com/read/28210849/developmental-changes-in-notch1-and-nle1-expression-in-a-genetic-model-of-absence-epilepsy
#12
Fariba Karimzadeh, Sayed Mostafa Modarres Mousavi, Fatemeh Alipour, Hassan Hosseini Ravandi, Stjepana Kovac, Ali Gorji
Childhood absence epilepsy (CAE) is an epilepsy syndrome with seizures occurring in the early childhood, highlighting that seizures susceptibility in CAE is dependent on brain development. The Notch 1 signalling pathway is important in brain development, yet the role of the Notch1 signalling pathway in CAE remains elusive. We here explored Notch1 and its modulator notchless homologue 1 (NLE1) expression in WAG/Rij and control rats using immunohistochemistry. Functional Notch 1 effects were assessed in WAG/Rij rats in vivo...
February 16, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28210556/are-breast-cancer-stem-cells-the-key-to-resolving-clinical-issues-in-breast-cancer-therapy
#13
REVIEW
Hidetaka Shima, Akimitsu Yamada, Takashi Ishikawa, Itaru Endo
Despite the dramatic advances in breast cancer treatment over the past two decades, it is still the most common malignancies in women. One of the reasons patients succumb to breast cancer is treatment resistance leading to metastasis and recurrence. Recently, cancer stem cells (CSCs) have been suggested as a cause of metastasis and recurrence in several cancers because of their unique characteristics, including self-renewal, pluripotency, and high proliferative ability. Increasing evidence has implicated breast cancer stem cells (BCSCs) as essential for tumor development, progression, recurrence, and treatment resistance...
February 2017: Gland Surgery
https://www.readbyqxmd.com/read/28197534/stabilization-of-nuclear-oncoproteins-by-rnf4-and-the-ubiquitin-system-in-cancer
#14
M Diefenbacher, A Orian
RNF4, a SUMO-targeted ubiquitin ligase, stabilizes a selected group of oncoproteins. It potentiates oncoprotein activity and serves as a positive feedback agonist of Wnt and Notch pathways. RNF4 is essential for cancer cell survival and its levels are elevated in human cancers, correlating with poor outcome in a subset of cancer patients.
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/28195151/in-patients-with-chronic-aplastic-anemia-bone-marrow-derived-mscs-regulate-the-treg-th17-balance-by-influencing-the-notch-rbp-j-foxp3-ror%C3%AE-t-pathway
#15
Hongbo Li, Lin Wang, Yan Pang, Zujun Jiang, Zenghui Liu, Haowen Xiao, Haijia Chen, Xiaohu Ge, Hai Lan, Yang Xiao
The standard treatment for aplastic anemia (AA) in young patients is a matched sibling hematopoietic stem cell transplant. Transfusion of a chronic AA patient with allogeneic bone marrow-derived mesenchymal stromal cells (BMMSCs) is currently being developed as a cell-based therapy, and the safety and efficacy of such transfusions are being continuously improved. Nevertheless, the mechanisms by which BMMSCs exert their therapeutic effects remain to be elucidated. In this study, mesenchymal stromal cells (MSCs) obtained from bone marrow donors were concentrated and intravenously injected into 15 chronic AA patients who had been refractory to prior immunosuppressive therapy...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28195086/altered-expressions-of-notch-1-signaling-proteins-and-beta-catenin-in-progression-of-carcinoma-in-situ-into-squamous-carcinoma-of-uterine-cervix
#16
Na-Hye Myong
BACKGROUND: Activation of Notch-1 signaling pathway and loss of membranous beta-catenin have been known to play key roles in the progression of uterine cervix cancer and thus this study focused any alteration in the expression patterns for Notch-1, p53, and cyclin D1 as well as beta-catenin in squamous carcinoma in situ (CIS) and invasive squamous carcinomas to investigate their roles in the progression of CIS to squamous carcinomas. MATERIALS AND METHODS: Three Notch-1 signaling proteins, such as Notch-1, TP53, and cyclin D1, and a component of cell adhesion complex, beta-catenin, were immunohistochemically stained in 112 uterine cervical tumors including 74 CIS and 38 invasive squamous carcinomas (11 microinvasive and 27 invasive carcinomas)...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28192800/molecular-profiling-of-the-developing-lacrimal-gland-reveals-putative-role-of-notch-signaling-in-branching-morphogenesis
#17
Galina Dvoriantchikova, Wensi Tao, Steve Pappas, Gabriel Gaidosh, David T Tse, Dmitry Ivanov, Daniel Pelaez
Purpose: Although normal function of the lacrimal gland is essential for vision (and thus for human well-being), the lacrimal gland remains rather poorly understood at a molecular level. The purpose of this study was to identify new genes and signaling cascades involved in lacrimal gland development. Methods: To identify these genes, we used microarray analysis to compare the gene expression profiles of developing (embryonic) and adult lacrimal glands. Differential data were validated by quantitative RT-PCR, and several corresponding proteins were confirmed by immunohistochemistry and Western blot analysis...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28186974/a-notch-sensitive-upar-regulated-oncolytic-adenovirus-effectively-suppresses-pancreatic-tumor-growth-and-triggers-synergistic-anticancer-effects-with-gemcitabine-and-nab-paclitaxel
#18
Ana Mato-Berciano, Giulia Raimondi, Maria Victoria Maliandi, Ramon Alemany, Lluis Montoliu, Cristina Fillat
Notch signaling pathway is an embryonic program that becomes reactivated in pancreatic cancer and contributes to cancer stem cell (CSC) maintenance. We explored the concept of oncolytic adenoviral activity in response to Notch activation signaling, in the context of a chimeric promoter with uPAR regulatory sequences, as a strategy to drive its activity in neoplastic and CSC. We explored the advantages of a chemo-virotherapy approach based on synergistic combinations. Regulatory sequences recognized by the transcriptional factor CSL upstream a minimal uPAR promoter were engineered in adenoviral vectors and in the oncolytic adenovirus AdNuPARmE1A...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28186678/gamma-secretase-inhibitor-ix-gsi-impairs-concomitant-activation-of-notch-and-wnt-beta-catenin-pathways-in-cd44-gastric-cancer-stem-cells
#19
Samarpita Barat, Xi Chen, Khac Cuong Bui, Przemyslaw Bozko, Julian Götze, Matthias Christgen, Till Krech, Nisar P Malek, Ruben R Plentz
Cancer stem cells (CSC) are associated with tumor resistance and are characterized in gastric cancer (GC). Studies have indicated that Notch and wnt-beta-catenin pathways are crucial for CSC development. Using CD44(+) CSCs, we investigated the role of these pathways in GC carcinogenesis. We performed cell proliferation, wound healing, invasion, tumorsphere, and apoptosis assays. Immunoblot analysis of downstream signaling targets of Notch and wnt-beta-catenin were tested after gamma-secretase inhibitor IX (GSI) treatment...
February 3, 2017: Stem Cells Translational Medicine
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
#20
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
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