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https://www.readbyqxmd.com/read/28634384/alternative-splicing-regulates-distinct-subcellular-localization-of-epithelial-splicing-regulatory-protein-1-esrp1-isoforms
#1
Yueqin Yang, Russ P Carstens
Epithelial-Splicing-Regulatory-Protein 1 (Esrp1) is a cell-type specific RNA-binding protein (RBP) that is essential for mammalian development through maintenance of epithelial cell properties including barrier function. Esrp1 also regulates splicing during the epithelial to mesenchymal transition (EMT). It contains three highly conserved RNA recognition motifs (RRMs) in the absence of other clearly defined protein domains. Esrp1 itself is also alternatively spliced to produce multiple protein isoforms. Here we determined that two competing alternative 5' splice sites in exon 12 yield Esrp1 isoforms with differential nucleocytoplasmic localization...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634230/similarity-in-gene-regulatory-networks-suggests-that-cancer-cells-share-characteristics-of-embryonic-neural-cells
#2
Zan Zhang, Anhua Lei, Liyang Xu, Lu Chen, Yonglong Chen, Xuena Zhang, Yan Gao, Xiaoli Yang, Min Zhang, Ying Cao
Cancer cells are immature cells resulting from cellular reprogramming by gene misregulation, and re-differentiation is expected to reduce malignancy. It is unclear, however, whether cancer cells can undergo terminal differentiation. Here, we show that, inhibition of the epigenetic modification enzymes enhancer of zeste homolog 2 (EZH2), histone deacetylases (HDACs) 1 and 3, lysine demethylase 1A (LSD1), or DNA methyltransferase 1 (DNMT1), which all promote cancer development and progression, leads to postmitotic neuron-like differentiation with loss of malignant features in distinct solid cancer cell lines...
June 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28634226/phostine-pst3-1a-targets-mgat5-and-inhibits-glioblastoma-initiating-cell-invasiveness-and-proliferation
#3
Zahra Hassani, Ali Saleh, Soumaya Turpault, Salim Khiati, Willy Morelle, Jacques Vignon, Jean-Philippe Hugnot, Emmanuelle Uro-Coste, Philippe Legrand, Marcel Delaforge, Séverine Loiseau, Ludovic Clarion, Marc Lecouvey, Jean-Noël Volle, David Virieux, Jean-Luc Pirat, Hugues Duffau, Norbert Bakalara
Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor and accounts for a significant proportion of all primary brain tumors. Median survival after treatment is around 15 months. Remodeling of N-glycans by the N-acetylglucosamine glycosyltransferase (MGAT5) regulates tumoral development. Here, perturbation of MGAT5 enzymatic activity by the small-molecule inhibitor 3-Hydroxy-4,5-bis-benzyloxy-6-benzyloxymethyl-2-phenyl2-oxo-2λ5-[1,2]oxaphosphinane (PST3.1a) restrains GBM growth. In cell based assays it is demonstrated that PST3...
June 20, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28632723/mir-646-inhibited-cell-proliferation-and-emt-induced-metastasis-by-targeting-foxk1-in-gastric-cancer
#4
P Zhang, W M Tang, H Zhang, Y Q Li, Y Peng, J Wang, G N Liu, X T Huang, J J Zhao, G Li, A M Li, Y Bai, Y Chen, Y X Ren, G X Li, Y D Wang, S D Liu, J D Wang
BACKGROUND: MiR-646 has been reported to be aberrantly expressed in human cancers. However, the underlying molecular mechanisms of action of miR-646 in gastric cancer (GC) have not yet been investigated. METHODS: In vitro function of miR-646 in GC was evaluated using EdU assay, plate colony formation assay, and matrigel invasion assay. Real-time PCR or western blotting was performed to detect miR-646 and FOXK1 expressions. In vivo tumour growth and metastasis were conducted in nude mice...
June 20, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28631388/the-efficacy-of-commercial-tooth-storage-media-for-maintaining-the-viability-of-human-periodontal-ligament-fibroblasts
#5
W Lee, S Stover, M Rasoulianboroujeni, K Sherman, F Fahimipour, E Dashtimoghadam, C Zito, H Jazayeri, L Tayebi
AIM: To evaluate Save-A-Tooth (SAT), EMT Toothsaver (EMT), and Hank's Balanced Salt Solution (HBSS) for their influence on the viability and proliferative capacity of human periodontal ligament fibroblast (HPDLF). METHODOLOGY: Primary HPDLFs were seeded on 96-well cell culture plates and exposed to SAT, EMT, HBSS and water (negative control) for 0.5, 1, 3, 6, 12 and 24 hours at room temperature (22°C). After each exposure time, cell viability was measured by quantifying adenosine triphosphate (ATP) using a luminescent dye...
June 20, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28631378/runx2-i-is-an-early-regulator-of-epithelial-mesenchymal-cell-transition-in-the-chick-embryo
#6
Andre L P Tavares, Jessie A Brown, Emily C Ulrich, Katerina Dvorak, Raymond B Runyan
BACKGROUND: Though normally linked to bone and cartilage development, the Runt-related transcription factor, RUNX2, was reported in the mouse heart during development of the valves. We examined RUNX2 expression and function in the developing avian heart as it related to the epithelial-mesenchymal transition (EMT) in the atrioventricular canal. EMT can be separated into an activation stage involving hypertrophy and cell separation and an invasion stage where cells invade the extracellular matrix...
June 19, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28630448/progesterone-prevents-epithelial-mesenchymal-transition-of-ovine-amniotic-epithelial-cells-and-enhances-their-immunomodulatory-properties
#7
Angelo Canciello, Valentina Russo, Paolo Berardinelli, Nicola Bernabò, Aurelio Muttini, Mauro Mattioli, Barbara Barboni
The in vitro expansion is detrimental to therapeutic applications of amniotic epithelial cells (AEC), an emerging source of fetal stem cells. This study provides molecular evidences of progesterone (P4) role in preventing epithelial-mesenchymal transition (EMT) in ovine AEC (oAEC). oAEC amplified under standard conditions spontaneously acquired mesenchymal properties through the up-regulation of EMT-transcription factors. P4 supplementation prevented phenotype shift by inhibiting the EMT-inducing mechanism such as the autocrine production of TGF-β and the activation of intracellular-related signaling...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630279/obesity-and-p16-ink4a-down-regulation-activate-breast-adipocytes-and-promote-their-pro-tumorigenicity
#8
Huda H Al-Khalaf, Mrad Amir, Falah Al-Mohanna, Asma Tulbah, Adher Al-Sayed, Abdelilah Aboussekhra
Obesity is increasingly recognized as a risk factor for breast cancer development. However, the molecular basis of obesity-related breast carcinogenesis remains elusive. In this study, we have shown that obesity reduces the level of the tumor suppressor p16(INK4A) protein in breast adipocytes, which showed active features and strong pro-carcinogenic potential both in vitro and in orthotopic tumor xenografts, as compared to mature adipocytes from lean women. Furthermore, obesity triggered epithelial-to-mesenchymal transition (EMT) in breast ductal epithelial cells...
June 19, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28629532/hypaconitine-inhibits-tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition-and-suppresses-adhesion-migration-and-invasion-of-lung-cancer-a549-cells
#9
Hai-Tao Feng, Wen-Wen Zhao, Jin-Jian Lu, Yi-Tao Wang, Xiu-Ping Chen
Epithelial-mesenchymal transition (EMT) has been implicated in tumor invasion and metastasis and provides novel strategies for cancer therapy. Hypaconitine (HpA), a diester-diterpenoid alkaloid isolated from the root of the Aconitum species, exhibits anti-inflammatory, analgesic, and especially, cardiotoxic activities. Here, we reported the anti-metastatic potentials of HpA in transforming growth factor-β1 (TGF-β1)-induced EMT in lung cancer A549 cells. The cytotoxic effect of HpA was determined by MTT assay...
June 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28629038/electrospinning-of-pva-sericin-nanofiber-and-the-effect-on-epithelial-mesenchymal-transition-of-a549-cells
#10
Shanshan Yan, Xiuchun Li, Jing Dai, Yiqun Wang, Binbin Wang, Yi Lu, Jianlin Shi, Pengyu Huang, Jinkang Gong, Yuan Yao
This research aims to investigate the cell-nanomaterial interaction between epithelial-mesenchymal transition of A549 cell and electrospinning nanofibers composed of polyvinyl alcohol (PVA)/silk sericin (SS). The electrospinning of regenerated nanofiber was performed with water as a spinning solvent and glutaraldehyde as a chemical cross-linker. Solution concentration, applied voltage and spin distances as well as other parameters were optimized to generate fine nanofibers with smooth surface in good homogeneity...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28627650/the-inhibitory-effects-of-deep-sea-water-on-doxorubicin%C3%A2-induced-epithelial-mesenchymal-transition
#11
So-Young Chun, Soyoung Kim, Kyung-Soo Nam
It has been revealed that the induction of epithelial‑mesenchymal transition (EMT) is associated with drug resistance, leading to tumor recurrence and metastasis. Recent studies have shown that chemotherapeutic agents, besides their therapeutic effects, can induce EMT and enhance invasive and metastatic properties of tumor cells. Previously, we revealed that deep-sea water (DSW) exhibited antimetastatic effects in several human cancer cell lines. In the present study, we investigated the effects of DSW on doxorubicin-induced EMT in MCF-7 human breast cancer cells...
June 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627617/sorafenib-controls-the-epithelial%C3%A2-mesenchymal-transition-of-ovarian-cancer-cells-via-egf-and-the-cd44%C3%A2-ha-signaling-pathway-in-a-cell-type%C3%A2-dependent-manner
#12
Ga Bin Park, Hyun-Suk Ko, Daejin Kim
Cluster of differentiation (CD) 44 and epidermal growth factor (EGF) are closely involved in cellular migration and have been used as stem cell markers. Although the hyaluronan (HA)‑binding CD44 is responsible for enhanced cellular motility, the mechanism underlying its actions in various cell types and clinical conditions have yet to be elucidated. In the present study, the multikinase inhibitor sorafenib was used to investigate the diverse effects of EGF stimulation on epithelial‑mesenchymal transition (EMT) in ovarian cancer cells using immunoblotting and reverse transcription‑polymerase chain reaction...
June 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28627611/epithelial-mesenchymal-transition-and-cancer-stem-cell-like-phenotype-induced-by-twist1-contribute-to-acquired-resistance-to-irinotecan-in-colon-cancer
#13
Yong Yang, Guoxin Wang, Dajian Zhu, Yanfeng Huang, Yong Luo, Pengfei Su, Xiaowu Chen, Qian Wang
Inherent and acquired chemoresistance reduce the effectiveness of irinotecan in the treatment of metastatic colorectal cancer (CRC). However, the molecular mechanisms underlying this resistance process are still unclear. Twist1 is one of the master transcription factors of epithelial-mesenchymal transition (EMT). Our previous study indicated that Twist1 is overexpressed in colon cancer tissues, and demonstrated that Twist1 plays a crucial role in the chemoresistance of CRC. In the present study, we further investigated how Twist1 contribute to acquired resistance to irinotecan in colon cancer...
June 14, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28627599/hmox-1-inhibits-tgf-%C3%AE-induced-epithelial-mesenchymal-transition-in-the-mcf-7-breast-cancer-cell-line
#14
Xiaofeng Zhu, Shuichuan Huang, Lili Zeng, Jieyi Ma, Suhong Sun, Feng Zeng, Fanli Kong, Xiaoming Cheng
Epithelial‑mesenchymal transition (EMT) is a key mechanism underlying metastatic breast cancer. Reactive oxygen species (ROS) play an important role in EMT. Heme oxygenase‑1 (HMOX‑1) can reduce oxidative stress. However, the effect of HMOX‑1 on the EMT process in breast cancer cells is unknown. We treated the MCF‑7 breast cancer cell line with the HMOX‑1 inducer hemin and observed that hemin induced HMOX‑1 expression and inhibited migration, invasion and ROS generation in transforming growth factor‑β (TGF‑β)‑treated MCF‑7 cells using quantitative RT‑qPCR, western blotting, wound‑healing and cell invasion assays as well as fluorescent probe DCFDA...
June 14, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28627391/low-molecular-weight-fucoidan-and-its-fractions-inhibit-renal-epithelial-mesenchymal-transition-induced-by-tgf-%C3%AE-1-or-fgf-2
#15
Xinpeng Li, Xiaohong Li, Quanbin Zhang, Tingting Zhao
We investigated the renal protective effects of low molecular weight fucoidan (LMWF) and its two fractions (F0.5 and F1.0), which were extracted from Laminaria japonica, on the epithelial-mesenchymal transition (EMT) induced by transforming growth factor beta 1 (TGF-β1) and fibroblast growth factor 2 (FGF-2) in HK-2 human renal proximal tubular cells. Cell morphology and EMT markers (fibronectin and alpha-smooth muscle actin) demonstrated that cells treated with TGF-β1 or FGF-2 developed EMT to a significant extent...
June 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28626343/anti-osm-antibody-inhibits-tubulointerstitial-lesion-in-a-murine-model-of-lupus-nephritis
#16
Qingjuan Liu, Yunxia Du, Kejun Li, Wei Zhang, Xiaojuan Feng, Jun Hao, Hongbo Li, Shuxia Liu
The purpose of this study was to investigate the role of oncostatin M (OSM) in tubulointerstitial lesion (TIL) in lupus nephritis (LN). We found that OSM was highly expressed in the renal tissue of LN mice. OSM is one of the interleukin-6 cytokine family members. In order to clarify the role and mechanism of OSM in LN, mice with LN were treated with anti-OSM antibody or isotype antibody. We evaluated the tubular epithelial-mesenchymal transdifferentiation (EMT) by detecting the E-cadherin, α-smooth muscle actin (α-SMA), and fibronectin (FN) expression...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28625142/proteotoxic-stress-desensitizes-tgf-beta-signaling-through-receptor-downregulation-in-retinal-pigment-epithelial-cells
#17
X Tan, C Chen, Y Zhu, J Deng, X Qiu, S Huang, F Shang, B Cheng, Y Liu
BACKGROUND: Transforming growth factor (TGFβ)-induced epithelial-mesenchymal transition (EMT) and proteotoxic stress are two main contributors of intraocular fibrotic disorders, including proliferative vitreoretinopathy (PVR) and proliferative diabetic retinopathy (PDR). However, how these two factors communicate with each other is not well-characterized. OBJECTIVE: The aim was to investigate the regulatory role of proteotoxic stress on TGFβ signaling in retinal pigment epithelium...
June 19, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28624791/epha2-affects-the-sensitivity-of-oxaliplatin-by-inducing-emt-in-oxaliplatin-resistant-gastric-cancer-cells
#18
Qiaocheng Wen, Zihua Chen, Zhikang Chen, Jinxiang Chen, Ran Wang, Changhao Huang, Weijie Yuan
Erythropoietin-producing hepatocellular receptor A2 (EphA2) is upregulated in gastric cancer tissues and cells, which is accompanied by epithelial-mesenchymal transition (EMT). The current study was designed to establish the oxaliplatin-resistant human gastric cancer cell line SGC-7901/L-OHP, to determine if EMT in these cells could be reversed, and to determine if the susceptibility of these cells to oxaliplatin was affected by silencing EphA2 expression. We found that EphA2 expression levels were upregulated in gastric cancer and associated with chemotherapy sensitivity...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624786/high-expression-of-gpr116-indicates-poor-survival-outcome-and-promotes-tumor-progression-in-colorectal-carcinoma
#19
Li Yang, Xiao-Lu Lin, Wei Liang, Seng-Wang Fu, Wen-Feng Lin, Xiao-Qing Tian, Yun-Jie Gao, Hao-Yan Chen, Jun Dai, Zhi-Zheng Ge
Previous studies have found that G-protein-coupled receptor 116 (GPR116) is a regulator of breast cancer metastasis. However, the role of GPR116 in colorectal carcinoma (CRC) carcinogenesis and progression is unknown. In this study, We found GPR116 expression was significantly up-regulated in CRC specimens compared with corresponding non-cancerous tissues. Increased GPR116 expression in CRC was correlated with histological differentiation and distant metastasis. In addition, high expression of GPR116 was significantly associated with poor overall survival of CRC patients, which was also confirmed by GSE14333, GSE17536 and GSE33113 datasets from the Gene Expression Omnibus (GEO)...
May 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624451/rapamycin-protects-against-paraquat-induced-pulmonary-fibrosis-activation-of-nrf2-signaling-pathway
#20
Yiheng Xu, Wenlin Tai, Xiaoyuan Qu, Wenjuan Wu, ZhenKun Li, Shuhao Deng, Chanthasone Vongphouttha, Zhaoxing Dong
Paraquat (PQ) is a widely used herbicide indeveloping countries worldwide, and pulmonary fibrosis is one of the most typical features of PQ poisoning. The molecular mechanism of PQ toxicity especially how to treat PQ-induced pulmonary fibrosis is still largely unknown. In animal model of pulmonary fibrosis, we used HE staining, western blotting assay and Real-time PCR assay to analyze the effects of rapamycin on the PQ-induced epithelial mesenchymal transition (EMT). We found that PQ induced the pulmonary fibrosis using HE staining and Masson's staining, and up-regulated the activity of HYP and the mRNA expressions of Collagen I and III (COL-1and COL-3) in pulmonary tissues...
June 15, 2017: Biochemical and Biophysical Research Communications
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