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https://www.readbyqxmd.com/read/28637464/kaiso-differentially-regulates-components-of-the-notch-signaling-pathway-in-intestinal-cells
#1
Shaiya C Robinson, Kristina Klobucar, Christina C Pierre, Amna Ansari, Svetlana Zhenilo, Egor Prokhortchouk, Juliet M Daniel
BACKGROUND: In mammalian intestines, Notch signaling plays a critical role in mediating cell fate decisions; it promotes the absorptive (or enterocyte) cell fate, while concomitantly inhibiting the secretory cell fate (i.e. goblet, Paneth and enteroendocrine cells). We recently reported that intestinal-specific Kaiso overexpressing mice (Kaiso (Tg) ) exhibited chronic intestinal inflammation and had increased numbers of all three secretory cell types, hinting that Kaiso might regulate Notch signaling in the gut...
June 21, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28637014/a-combination-of-valproic-acid-sodium-salt-chir99021-e-616452-tranylcypromine-and-3-deazaneplanocin-a-causes-stem-cell-like-characteristics-in-cancer-cells
#2
Shuang Sha, Yuanfen Zhai, Chengzhao Lin, Heyong Wang, Qing Chang, Shuang Song, Mingqiang Ren, Gentao Liu
Many studies are based on the hypothesis that recurrence and drug resistance in lung carcinoma are due to a subpopulation of cancer stem-like cells (CSLCs) in solid tumors. Therefore it is crucial to screen for and recognize lung CSLCs. In this study, we stimulated non-small cell lung cancer (NSCLC) A549 cells to display stem cell-like characteristics using a combination of five small molecule compounds. The putative A549 stem cells activated an important CSLC marker, CD133 protein, as well multiple CSLC-related genes including ATP-binding cassette transporter G2 (ABCG2), C-X-C chemokine receptor type 4 (CXCR4), NESTIN, and BMI1...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28637009/jagged-2-jag2-enhances-tumorigenicity-and-chemoresistance-of-colorectal-cancer-cells
#3
Vivek Vaish, Joohwee Kim, Minsub Shim
Colorectal cancer (CRC) is one of the leading causes of cancer-related mortality. Recent studies have stated that NOTCH signaling plays an important role in the development and progression of CRC. However, the role of Jagged-2 (JAG2), one of the NOTCH ligands, has not been delineated in colorectal tumorigenesis and drug resistance. In the present study, we have examined the impact of targeting JAG2 on CRC cells. Among all the members of NOTCH ligands, only the expression of JAG2 was found up-regulated in the intestinal tumors of ApcMin/+ mice as compared to the nearby normal mucosa...
June 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636457/notch-signaling-in-lung-diseases
#4
Jiehan Jiang, Kui Xiao, Ping Chen
NOTCH is a fundamental signaling system that regulates normal embryonic development and tissue homeostasis in adult life. NOTCH receptor is a single-pass transmembrane protein normally triggered via direct cell-to-cell contact, in which NOTCH ligands bind the extracellular domain of the receptor, inducing γ-secretase cleavage and release of intracellular domain. The intracellular domain binds to the transcriptional effector RBPJκ to activate transcription of target genes that regulate cell differentiation, patterning, and morphogenesis during embryonic development and adult life...
June 21, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/28630591/notch-signalinio-kelio-ir-ginekologini%C3%A5-piktybini%C3%A5-navik%C3%A5-s%C3%A4-saja
#5
Nadežda Lachej, Daiva Dabkevičienė, Aušra Sasnauskienė, Rūta Marija Trimonytė, Daiva Kanopienė, Birutė Kazbarienė, Janina Didžiapetrienė
Background. The body's cell behaviour is controlled by various signalling pathways, one of which is NOTCH. It has been found that a partial loss of the NOTCH function or abnormal strengthening of NOTCH signalling are related to various human diseases and developmental disorders. Materials and methods. PubMed was the main source of information for this paper. Results. The paper overviews the association between oncologic diseases and the participants of the NOTCH signalling pathway. In cancerogenesis, the NOTCH signalling pathway can act as a tumour suppressor or an oncogene...
2017: Acta medica Lituanica
https://www.readbyqxmd.com/read/28628187/klf2-inhibits-cell-growth-via-regulating-hif-1%C3%AE-notch-1-signal-pathway-in-human-colorectal-cancer-hct116-cells
#6
Hai-Gang Wang, Bin Cao, Li-Xian Zhang, Nan Song, Hui Li, Wen-Zeng Zhao, Yan-Shu Li, Shun-Mao Ma, Dong-Jian Yin
The transcription factor Krüppel-like factor 2 (KLF2) has been shown to function as a tumor suppressor and regulate biological processes of cancer cells, such as cell growth, cell apoptosis and angiogenesis. However, the function and mechanism of KLF2 in colorectal cancer (CRC) is still unknown. In the present study, we show that the expression of KLF2 is diminished in a cohort of CRC cell lines. Also, KLF2 overexpression remarkably inhibits HCT116 and SW480 cell survival and proliferation. Moreover, cell death detection ELISA plus assay showed that KLF2 overexpression increased HCT116 cell proliferation...
July 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627671/downregulation-of-notch1-inhibits-the-invasion-and-metastasis-of-human-gastric-cancer-cells-sgc7901-and-mkn74-in%C3%A2-vitro-through-pten-activation-and-dephosphorylation-of-akt-and-fak
#7
Xue-Song Zhang, Yan-Hua Hu, Hong-Yu Gao, Xiu-Wen Lan, Ying-Wei Xue
Migration and invasion are both vital causes of mortality in patients with gastric cancer. Therefore, the inhibition of these tumour cell processes is of great importance in gastric cancer therapy. Activation of Notch has been reported in many cancers. The critical role of Notch and its regulation in tumourigenesis has been noted. Although the studies on Notch in the field of cancer have been performed extensively, the role of Notch1 signalling in gastric cancer requires further study. Inactivation of PTEN has been observed in the development of many malignant tumors, and loss of PTEN function has been implicated in tumorigenic processes...
June 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28625977/p300-mediated-acetylation-of-the-notch-effector-transcription-factor-maml-1-recruits-nack-to-initiate-notch-dependent-transcription
#8
Ke Jin, Wen Zhou, Xiaoqing Han, Zhiqiang Wang, Bin Li, Shawn Jeffries, Wensi Tao, David J Robbins, Anthony J Capobianco
Although it has long been appreciated that p300 acts as a critical Notch coactivator, the mechanistic details of p300 in Notch-mediated transcription remain unclear. We previously demonstrated that PEAK1-related kinase activating pseudokinase 1 (NACK) is a critical co-activator of Notch signaling and binds to the Notch1 ternary complex. Herein we report that p300 and CBP acetylate mastermind-like transcriptional coactivator 1 (Maml1) on amino acid residues K188 and K189 to recruit NACK to the Notch1 ternary complex, which results in the recruitment of RNA polymerase II to initiate transcription...
June 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28622887/genetic-etiology-of-oral-cancer
#9
REVIEW
Johar Ali, Bibi Sabiha, Hanif Ullah Jan, Syed Adnan Haider, Abid Ali Khan, Saima S Ali
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer worldwide. It accounts for 2.5% of all new cancer cases and 1.9% of all cancer deaths annually. More than 90% of oral cancers (occurring in the mouth, lip, and tongue) are oral squamous cell carcinoma. The incidence rate of oral cancer varies widely throughout the world, with an evident prevalence in South Asian countries. This high incidence occurs in correlation with oral cancer-associated behaviors such as alcohol, tobacco use...
July 2017: Oral Oncology
https://www.readbyqxmd.com/read/28622289/microrna-26a-and-26b-inhibit-lens-fibrosis-and-cataract-by-negatively-regulating-jagged-1-notch-signaling-pathway
#10
Xiaoyun Chen, Wei Xiao, Weirong Chen, Xialin Liu, Mingxing Wu, Qu Bo, Yan Luo, Shaobi Ye, Yihai Cao, Yizhi Liu
Fibrosis is a chronic process involving development and progression of multiple diseases in various organs and is responsible for almost half of all known deaths. Epithelial-mesenchymal transition (EMT) is the vital process in organ fibrosis. Lens is an elegant biological tool to investigate the fibrosis process because of its unique biological properties. Using gain- and loss-of-function assays, and different lens fibrosis models, here we demonstrated that microRNA (miR)-26a and miR-26b, members of the miR-26 family have key roles in EMT and fibrosis...
June 16, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28620125/mutational-re-modeling-of-di-aspartyl-intramembrane-proteases-uncoupling-physiologically-relevant-activities-from-those-associated-with-alzheimer-s-disease
#11
Anastasia P Grigorenko, Youri K Moliaka, Olga V Plotnikova, Alexander Smirnov, Vera A Nikishina, Andrey Y Goltsov, Fedor Gusev, Tatiana V Andreeva, Omar Nelson, Ilya Bezprozvanny, Evgeny I Rogaev
The intramembrane proteolytic activities of presenilins (PSEN1/PS1 and PSEN2/PS2) underlie production of β-amyloid, the key process in Alzheimer's disease (AD). Dysregulation of presenilin-mediated signaling is linked to cancers. Inhibition of the γ-cleavage activities of PSENs that produce Aβ, but not the ε-like cleavage activity that release physiologically essential transcription activators, is a potential approach for the development of rational therapies for AD. In order to identify whether different activities of PSEN1 can be dissociated, we designed multiple mutations in the evolutionary conserved sites of PSEN1...
May 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28620033/scissor-sisters-regulation-of-adam10-by-the-tspanc8-tetraspanins
#12
REVIEW
Alexandra L Matthews, Justyna Szyroka, Richard Collier, Peter J Noy, Michael G Tomlinson
A disintegrin and metalloprotease 10 (ADAM10) is a ubiquitously expressed transmembrane protein which is essential for embryonic development through activation of Notch proteins. ADAM10 regulates over 40 other transmembrane proteins and acts as a 'molecular scissor' by removing their extracellular regions. ADAM10 is also a receptor for α-toxin, a major virulence factor of Staphylococcus aureus Owing to the importance of its substrates, ADAM10 is a potential therapeutic target for cancer, neurodegenerative diseases such as Alzheimer's and prion diseases, bacterial infection and inflammatory diseases such as heart attack, stroke and asthma...
June 15, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28619606/pivotal-roles-of-glycogen-synthase-3-in-hepatocellular-carcinoma
#13
REVIEW
Melchiorre Cervello, Giuseppa Augello, Antonella Cusimano, Maria Rita Emma, Daniele Balasus, Antonina Azzolina, James A McCubrey, Giuseppe Montalto
Hepatocellular carcinoma (HCC) is one of the most common cancers in the world, and represents the second most frequently cancer and third most common cause of death from cancer worldwide. At advanced stage, HCC is a highly aggressive tumor with a poor prognosis and with very limited response to common therapies. Therefore, there is still the need for new effective and well-tolerated therapeutic strategies. Molecular-targeted therapies hold promise for HCC treatment. One promising molecular target is the multifunctional serine/threonine kinase glycogen synthase kinase 3 (GSK-3)...
June 6, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28619508/mir-129-5p-inhibits-non-small-cell-lung-cancer-cell-stemness-and-chemoresistance-through-targeting-dlk1
#14
Zheng Ma, Hongfei Cai, Yan Zhang, Liang Chang, Youbin Cui
Non-small cell lung cancer (NSCLC) stemness and chemoresistance represent significant barriers to successful treatment. Downregulation of microRNA 129 (miR-129) has been implicated in a variety of cancers, and miR-129-5p has recently been shown to reduce lung cancer proliferation and metastasis. In this study, we used NSCLC cell lines A549 and H460 to investigate the effects of miR-129-5p on NSCLC stemness and chemoresistance. CD133 + stem cells in both lines showed reduced miR-129-5p expression, and introducing miR-129-5p into these cells reduced stem cell markers and self-renewal ability, as measured by qRT-PCR, western blot, MTT assays, and sphere formation assays...
June 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28610953/a-thirty-year-quest-for-a-role-of-r-ras-in-cancer-from-an-oncogene-to-a-multitasking-gtpase
#15
Wai Nam Liu, Mingfei Yan, Andrew M Chan
Since the identification of R-Ras, which is the first Ras-related GTPase isolated based on sequence similarity to the classical RAS oncogene, more than 160 members of the Ras superfamily of GTPases have been identified and classified into the Ras, Rho, Rap, Rab, Ran, Arf, Rheb, RGK, Rad, Rit, and Miro subfamilies. R-Ras belongs to the Ras subfamily of small G-proteins, which are frequently implicated in cell growth and differentiation. Although the roles of R-Ras in cellular transformation and integrin-mediated cell adhesion have been extensively studied, the physiological function of this enigmatic G-protein was only revealed when a mouse strain deficient in R-Ras was generated...
June 10, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28609656/kupffer-cell-derived-tnf-triggers-cholangiocellular-tumorigenesis-through-jnk-due-to-chronic-mitochondrial-dysfunction-and-ros
#16
Detian Yuan, Shan Huang, Emanuel Berger, Lei Liu, Nina Gross, Florian Heinzmann, Marc Ringelhan, Tracy O Connor, Mira Stadler, Michael Meister, Julia Weber, Rupert Öllinger, Nicole Simonavicius, Florian Reisinger, Daniel Hartmann, Rüdiger Meyer, Maria Reich, Marco Seehawer, Valentina Leone, Bastian Höchst, Dirk Wohlleber, Simone Jörs, Marco Prinz, Duncan Spalding, Ulrike Protzer, Tom Luedde, Luigi Terracciano, Matthias Matter, Thomas Longerich, Percy Knolle, Thomas Ried, Verena Keitel, Fabian Geisler, Kristian Unger, Einat Cinnamon, Eli Pikarsky, Norbert Hüser, Roger J Davis, Darjus F Tschaharganeh, Roland Rad, Achim Weber, Lars Zender, Dirk Haller, Mathias Heikenwalder
Intrahepatic cholangiocarcinoma (ICC) is a highly malignant, heterogeneous cancer with poor treatment options. We found that mitochondrial dysfunction and oxidative stress trigger a niche favoring cholangiocellular overgrowth and tumorigenesis. Liver damage, reactive oxygen species (ROS) and paracrine tumor necrosis factor (Tnf) from Kupffer cells caused JNK-mediated cholangiocellular proliferation and oncogenic transformation. Anti-oxidant treatment, Kupffer cell depletion, Tnfr1 deletion, or JNK inhibition reduced cholangiocellular pre-neoplastic lesions...
June 12, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28607802/developmental-pathways-associated-with-cancer-metastasis-notch-wnt-and-hedgehog
#17
Armel Herve Nwabo Kamdje, Paul Takam Kamga, Richard Tagne Simo, Lorella Vecchio, Paul Faustin Seke Etet, Jean Marc Muller, Giulio Bassi, Erique Lukong, Raghuveera Kumar Goel, Jeremie Mbo Amvene, Mauro Krampera
Master developmental pathways, such as Notch, Wnt, and Hedgehog, are signaling systems that control proliferation, cell death, motility, migration, and stemness. These systems are not only commonly activated in many solid tumors, where they drive or contribute to cancer initiation, but also in primary and metastatic tumor development. The reactivation of developmental pathways in cancer stroma favors the development of cancer stem cells and allows their maintenance, indicating these signaling pathways as particularly attractive targets for efficient anticancer therapies, especially in advanced primary tumors and metastatic cancers...
May 2017: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/28607605/expression-of-notch-gene-and-its-impact-on-survival-of-patients-with-resectable-non-small-cell-lung-cancer
#18
Chung-Yu Chen, Ying-Yin Chen, Min-Shu Hsieh, Chao-Chi Ho, Kuan-Yu Chen, Jin-Yuan Shih, Chong-Jen Yu
BACKGROUND: Notch signaling has been demonstrated to frequently participate in the process of lung carcinogenesis. This study aimed to search Notch expression in non-small cell lung cancer (NSCLC) and its impact on survival. METHODS: From 2001 to 2011, patients with diagnosis of NSCLC who received surgical resection were included. The expression of Notch gene was assessed by real-time polymerase chain reaction (RT-PCR). Clinical characteristics, histological types, disease stages, and outcomes were analyzed...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28607007/synergistic-activity-with-notch-inhibition-and-androgen-ablation-in-erg-positive-prostate-cancer-cells
#19
Ahmed A Mohamed, Shyh-Han Tan, Charles P Xavier, Shilpa Katta, Wei Huang, Lakshmi Ravindranath, Muhammad Jamal, Hua Li, Meera Srivastava, Eri S Srivatsan, Taduru L Sreenath, David G McLeod, Alagarsamy Srinivasan, Gyorgy Petrovics, Albert Dobi, Shiv Srivastava
The oncogenic activation of the ETS related gene (ERG) due to gene fusions is present in over half of prostate cancer (CaP) in Western countries. Due to its high incidence and oncogenic role, ERG and components of ERG network have emerged as potential drug targets for CaP. Utilizing gene expression datasets, from matched normal and prostate tumor epithelial cells, an association of NOTCH transcription factors with ERG expression status was identified; confirming that NOTCH factors are direct transcriptional targets of ERG...
June 12, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28600474/use-of-angiotensin-system-inhibitors-is-associated-with-immune-activation-and-longer-survival-in-non-metastatic-pancreatic-ductal-adenocarcinoma
#20
Hao Liu, Kamila Naxerova, Matthias Pinter, Joao Incio, Hang Lee, Kohei Shigeta, William W Ho, Jonathan A Crain, Alex Jacobson, Theodoros Michelakos, Daniella Dias-Santos, Andrea Zanconato, Theodore S Hong, Jeffrey W Clark, Janet E Murphy, David P Ryan, Vikram Deshpande, Keith D Lillemoe, Carlos Fernandez-Del Castillo, Michael Downes, Ronald M Evans, James Michaelson, Cristina R Ferrone, Yves Boucher, Rakesh K Jain
Angiotensin system inhibitors (ASIs) can improve prognosis in multiple cancer types, including pancreatic ductal adenocarcinoma (PDAC). However, no study has examined the effect of ASIs alone or combined with adjuvant chemotherapy in resected PDAC patients.<br /><br />Experimental Design: We performed an analysis of the records of ASI users and non-user patients with PDAC seen at Massachusetts General Hospital between January 2006 and December 2010. To identify mechanisms of ASIs in PDAC, we performed RNA-Seq of resected primary lesions...
June 9, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
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