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Epithelial mesenchymal transformation

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https://www.readbyqxmd.com/read/28432469/renal-findings-in-patients-with-mulibrey-nanism
#1
Johanna Sivunen, Susann Karlberg, Jouko Lohi, Niklas Karlberg, Marita Lipsanen-Nyman, Hannu Jalanko
BACKGROUND: Mulibrey nanism (MUL) is a rare inherited disease caused by genetic defects affecting peroxisomal TRIM37 protein. MUL affects multiple organs, leading to growth retardation and early onset type 2 diabetes. We aimed to characterize the structure and function of kidneys and the urinary tract in a large cohort of Finnish MUL patients. METHODS: Ultrasound, magnetic resonance imaging (MRI), and autopsy findings of the kidneys and urinary tract from 101 MUL patients were retrospectively analyzed...
April 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28423676/tumor-associated-macrophages-promote-ezrin-phosphorylation-mediated-epithelial-mesenchymal-transition-in-lung-adenocarcinoma-through-fut4-ley-up-regulation
#2
Aman Wang, Chang Lu, Zhen Ning, Wei Gao, Yunpeng Xie, Ningning Zhang, Jinxiao Liang, Faisal S Abbasi, Qiu Yan, Jiwei Liu
Tumor-associated macrophages (TAMs) are key components of tumor microenvironment (TME) during tumorigenesis and progression. However, the role of TAMs in lung adenocarcinoma is still unclear. In this study, we aimed to clarify the mechanism underlying the crosstalk between TAMs and epithelial-mesenchymal transition (EMT) of lung adenocarcinoma. Fucosyltransferase IV (FUT4) and its synthetic cancer sugar antigen Lewis Y (LeY) was aberrantly elevated in various solid tumors, it plays critical role in the invasion and metastasis...
March 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423509/histone-lysine-methyltransferase-g9a-is-a-novel-epigenetic-target-for-the-treatment-of-hepatocellular-carcinoma
#3
Masayuki Yokoyama, Tetsuhiro Chiba, Yoh Zen, Motohiko Oshima, Yuko Kusakabe, Yoshiko Noguchi, Kaori Yuki, Shuhei Koide, Shiro Tara, Atsunori Saraya, Kazumasa Aoyama, Naoya Mimura, Satoru Miyagi, Masanori Inoue, Toru Wakamatsu, Tomoko Saito, Sadahisa Ogasawara, Eiichiro Suzuki, Yoshihiko Ooka, Akinobu Tawada, Masayuki Otsuka, Masaru Miyazaki, Osamu Yokosuka, Atsushi Iwama
Histone H3 lysine 9 dimethylation (H3K9me2) is mainly regulated by the histone lysine methyltransferase G9a and is associated with the repression of transcription. However, both the role of G9a and the significance of H3K9me2 in hepatocellular carcinoma (HCC) cells remain unclear. In this study, we conducted loss-of-function assay of G9a using short-hairpin RNA and pharmacological interference. Knockdown of G9a reduced H3K9me2 levels and impaired both HCC cell growth and sphere formation. However, transforming growth factor β1-induced epithelial mesenchymal transition (EMT) was not suppressed by G9a knockdown...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418865/anti-helminthic-niclosamide-inhibits-ras-driven-oncogenic-transformation-via-activation-of-gsk-3
#4
Sung Yong Ahn, Ji Hye Yang, Nam Hee Kim, Kyungro Lee, Yong Hoon Cha, Jun Seop Yun, Hee Eun Kang, Yoonmi Lee, Jiwon Choi, Hyun Sil Kim, Jong In Yook
Despite the importance of Ras oncogenes as a therapeutic target in human cancer, their 'undruggable' tertiary structures limit the effectiveness of anti-Ras drugs. Canonical Wnt signaling contributes to Ras activity by glycogen synthase kinase 3 (GSK-3)-dependent phosphorylation at the C-terminus and subsequent degradation. In the accompanying report, we show that the anti-helminthic niclosamide directly binds to GSK-3 and inhibits Axin functions in colon cancer cells, with reversion of Snail-mediated epithelial-mesenchymal transition...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414310/autophagy-supports-generation-of-cells-with-high-cd44-expression-via-modulation-of-oxidative-stress-and-parkin-mediated-mitochondrial-clearance
#5
K A Whelan, P M Chandramouleeswaran, K Tanaka, M Natsuizaka, M Guha, S Srinivasan, D S Darling, Y Kita, S Natsugoe, J D Winkler, A J Klein-Szanto, R K Amaravadi, N G Avadhani, A K Rustgi, H Nakagawa
High CD44 expression is associated with enhanced malignant potential in esophageal squamous cell carcinoma (ESCC), among the deadliest of all human carcinomas. Although alterations in autophagy and CD44 expression are associated with poor patient outcomes in various cancer types, the relationship between autophagy and cells with high CD44 expression remains incompletely understood. In transformed oesophageal keratinocytes, CD44(Low)-CD24(High) (CD44L) cells give rise to CD44(High)-CD24(-/Low) (CD44H) cells via epithelial-mesenchymal transition (EMT) in response to transforming growth factor (TGF)-β...
April 17, 2017: Oncogene
https://www.readbyqxmd.com/read/28412214/chinese-medicine-bu-fei-decoction-attenuates-epithelial-mesenchymal-transition-of-non-small-cell-lung-cancer-via-inhibition-of-transforming-growth-factor-%C3%AE-1-signaling-pathway-in-vitro-and-in-vivo
#6
Xi-Ran He, Shu-Yan Han, Xiao-Hong Li, Wen-Xian Zheng, Li-Na Pang, Shan-Tong Jiang, Ping-Ping Li
ETHNOPHARMACOLOGICAL RELEVANCE: Traditional Chinese medicine Bu-Fei decoction (BFD) has been utilized to treat patients with Qi deficiency for decades, with the advantages of invigorating vital energy, clearing heat-toxin and moistening lung, etc. According to previous clinical experience and trials, BFD has been found to indeed improve life quality of lung cancer patients and prolong survival time. Nevertheless, little is known on its potential mechanisms so far. Being regarded as a pivotal cytokine in the tumor microenvironment, transforming growth factor β (TGF-β) stands out as a robust regulator of epithelial-mesenchymal transition (EMT), which is closely linked to tumor progression...
April 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28408625/ets-dependent-transcriptional-upregulation-of-the-transcriptional-co-activator-taz-promotes-cell-migration-and-metastasis-in-prostate-cancer
#7
Chen-Ying Liu, Tong Yu, Yuji Huang, Long Cui, Wanjin Hong
Prostate cancer is a very common malignant disease and a leading cause of death for men in the western world. Tumorigenesis and progression of prostate cancer involves multiple signaling pathways, including Hippo pathway. Yes-associated protein (YAP) is the downstream transcriptional co-activator of Hippo pathway, is overexpressed in the prostate cancer, and plays a vital role in the tumorigenesis and cancer progression of prostate cancer. However, the role of the YAP paralog and another downstream effector of Hippo pathway, transcriptional co-activator with PDZ-binding motif (TAZ), in prostate cancer has not been fully elucidated...
April 13, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28408209/role-of-mir-34a-in-tgf-%C3%AE-1-and-drug-induced-epithelial-mesenchymal-transition-in-alveolar-type-ii-epithelial-cells
#8
Mikihisa Takano, Chinami Nekomoto, Masashi Kawami, Ryoko Yumoto
Epithelial-mesenchymal transition (EMT) of alveolar type II epithelial cells may play an important role in the pulmonary fibrosis induced by drugs such as bleomycin (BLM) and methotrexate (MTX). In this study, we examined the role of microRNAs (miRNAs) in drug-induced EMT using RLE/Abca3, a cell line having alveolar type II cell-like phenotype. Based on the screening using miRNA microarray analysis, it was found that the expression of some miRNAs, such as miR-34a, was increased by transforming growth factor (TGF)-β1 and BLM...
April 10, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28407692/microrna-137-inhibits-bmp7-to-enhance-the-epithelial-mesenchymal-transition-of-breast-cancer-cells
#9
Xuexiang Ying, Yunpo Sun, Pingqing He
Bone morphogenetic protein-7 (BMP7) is known to antagonize transforming growth factor β 1 (TGFβ1)-mediated fibrosis through suppressing epithelial-mesenchymal transition (EMT). We recently reported that BMP7 also antagonizes the effects of TGFβ1 in breast cancer (BC) tumorigenesis-related EMT. Nevertheless, the control of BMP7 expression in BC remains ill-defined. Here, we detected significantly lower levels of BMP7 and significantly higher levels of microRNA-137 (miR-137) in the BC specimens, relative to paired adjacent non-tumor breast tissue...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28406452/suppression-of-hepatic-epithelial-to-mesenchymal-transition-by-melittin-via-blocking-of-tgf%C3%AE-smad-and-mapk-jnk-signaling-pathways
#10
Ji-Hyun Park, Byoungduck Park, Kwan-Kyu Park
Transforming growth factor (TGF)-β1 plays a crucial role in the epithelial-to-mesenchymal transition (EMT) in hepatocytes and hepatic stellate cells (HSC), which contributes to the pathogenesis of liver fibrosis. Melittin (MEL) is a major component of bee venom and is effective in rheumatoid arthritis, pain relief, cancer cell proliferation, fibrosis and immune modulating activity. In this study, we found that MEL inhibits hepatic EMT in vitro and in vivo, regulating the TGFβ/Smad and TGFβ/nonSmad signaling pathways...
April 13, 2017: Toxins
https://www.readbyqxmd.com/read/28405678/cutl1-induces-epithelial-mesenchymal-transition-in-non-small-cell-lung-cancer
#11
Junfeng Wang, Yanbo Wang, Dawei Sun, Fenghai Ren, Sainan Pang, Shidong Xu
The homeobox transcription factor CUTL1 has been associated with cellular proliferation and cell cycle progression, and CUTL1 functions as an oncogene. The aim of the present study was to investigate whether CUTL1 participates in epithelial-mesenchymal transition (EMT). The expression levels of CUTL1, E-cadherin, N-cadherin and Snail were determined by immunohistochemistry assay, immunofluorescence assay or real-time quantitative reverse transcription PCR. Their roles in non-small cell lung cancer (NSCLC) were assessed by functional analyses...
May 2017: Oncology Reports
https://www.readbyqxmd.com/read/28405169/oxidant-induced-autophagy-and-ferritin-degradation-contribute-to-epithelial-mesenchymal-transition-through-lysosomal-iron
#12
Apostolos Sioutas, Linda K Vainikka, Magnus Kentson, Sören Dam-Larsen, Urban Wennerström, Petra Jacobson, Hans Lennart Persson
PURPOSE: Transforming growth factor (TGF)-β1 triggers epithelial-mesenchymal transition (EMT) through autophagy, which is partly driven by reactive oxygen species (ROS). The aim of this study was to determine whether leaking lysosomes and enhanced degradation of H-ferritin could be involved in EMT and whether it could be possible to prevent EMT by iron chelation targeting of the lysosome. MATERIALS AND METHODS: EMT, H-ferritin, and autophagy were evaluated in TGF-β1-stimulated A549 human lung epithelial cells cultured in vitro using Western blotting, with the additional morphological assessment of EMT...
2017: Journal of Inflammation Research
https://www.readbyqxmd.com/read/28404898/nusap1-promotes-invasion-and-metastasis-of-prostate-cancer
#13
Catherine A Gordon, Xue Gong, Durga Ganesh, James D Brooks
We have previously identified nucleolar and spindle associated protein 1 (NUSAP1) as a prognostic biomarker in early stage prostate cancer. To better understand the role of NUSAP1 in prostate cancer progression, we tested the effects of increased and decreased NUSAP1 expression in cell lines, in vivo models, and patient samples. NUSAP1 promotes invasion, migration, and metastasis, possibly by modulating family with sequence similarity 101 member B (FAM101B), a transforming growth factor beta 1 (TGFβ1) signaling effector involved in the epithelial to mesenchymal transition...
February 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28404892/gambogic-acid-suppresses-cancer-invasion-and-migration-by-inhibiting-tgf%C3%AE-1-induced-epithelial-to-mesenchymal-transition
#14
Kai Zhao, Shuai Zhang, Xiuming Song, Yuyuan Yao, Yuxin Zhou, Qidong You, Qinglong Guo, Na Lu
The epithelial-to-mesenchymal transition (EMT) contributes to the disruption of cell-cell junctions and imbues cancer cells with invasive and migratory properties. In this study, we investigated the effect of gambogic acid, a xanthone extracted from the resin of Garciania hanburyi, on transforming growth factor β1 (TGFβ1)-induced EMT. Gambogic acid inhibited the invasion and migration of TGFβ1-induced A549 cells in vitro. Gambogic acid also increased the mRNA and protein expression of E-cadherin, but repressed the mRNA and protein expression of N-cadherin, vimentin, and transcription factor TWIST1...
February 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28403546/downregulation-of-delta-aminolevulinate-dehydratase-is-associated-with-poor-prognosis-in%C3%A2-patients-with-breast-cancer
#15
Jie Ge, Yue Yu, Fei Xin, Zheng-Jun Yang, Hong-Meng Zhao, Xin Wang, Zhong-Sheng Tong, Xu-Chen Cao
Delta-aminolevulinate dehydratase (ALAD) catalyzes the second step in the biosynthesis of heme and is also an endogenous inhibitor of the 26S proteasome. The role of ALAD in breast cancer progression is still unclear. In this study, we found that the expression of ALAD was downregulated in breast cancer tissues compared with adjacent normal breast tissues. Enhanced ALAD expression was associated with a favorable outcome in patients with breast cancer. Overexpression of ALAD suppresses breast cancer cell proliferation and invasion and inhibits the epithelial-mesenchymal transition phenotype...
February 3, 2017: Cancer Science
https://www.readbyqxmd.com/read/28400538/the-transcription-factor-mafk-induces-emt-and-malignant-progression-of-triple-negative-breast-cancer-cells-through-its-target-gpnmb
#16
Yukari Okita, Minori Kimura, Rudy Xie, Chen Chen, Larina Tzu-Wei Shen, Yurika Kojima, Hiroyuki Suzuki, Masafumi Muratani, Masao Saitoh, Kentaro Semba, Carl-Henrik Heldin, Mitsuyasu Kato
Triple-negative breast cancer (TNBC) is particularly aggressive and difficult to treat. For example, the transforming growth factor-β (TGF-β) pathway is implicated in TNBC progression and metastasis, but its opposing role in tumor suppression in healthy tissues and early-stage lesions makes it a challenging target. Therefore, additional molecular characterization of TNBC may lead to improved patient prognosis by informing the development and optimum use of targeted therapies. We found that musculoaponeurotic fibrosarcoma (MAF) oncogene family protein K (MAFK), a member of the small MAF family of transcription factors that are induced by the TGF-β pathway, was abundant in human TNBC and aggressive mouse mammary tumor cell lines...
April 11, 2017: Science Signaling
https://www.readbyqxmd.com/read/28395325/interaction-of-macrophages-and-endometrial-cells-induces-epithelial-mesenchymal-transition-like-processes-in-adenomyosis%C3%A2
#17
Min An, Dong Li, Ming Yuan, Qiuju Li, Lu Zhang, Guoyun Wang
Adenomyosis is a nonneoplastic condition characterized by the benign invasion of ectopic endometrium into the myometrium. Macrophages play significant roles in epithelial-mesenchymal transition (EMT) and adenomyosis. An EMT associated with adenomyosis has been extensively studied. This study investigated the process by which the interaction of macrophages with endometrial cells induces EMT in Ishikawa cells and epithelial cells of adenomyosis. Specimens were collected after hysterectomy or resection of adenomyosis lesions from women with adenomyosis and curettage from women without adenomyosis or endometriosis...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28393241/tgf-%C3%AE-1-induces-hmga1-expression-the-role-of-hmga1-in-thyroid-cancer-proliferation-and-invasion
#18
Jing Zhong, Chang Liu, Qing-Hai Zhang, Ling Chen, Ying-Ying Shen, Ya-Jun Chen, Xi Zeng, Xu-Yu Zu, Ren-Xian Cao
The role of transforming growth factor-β1 (TGF-β1) is complicated and plays a different role in the development of cancer. High mobility group A (HMGA1) participates in multiple cellular biology processes, and exerts important roles in the epithelial-mesenchymal transition (EMT). However, the correlation of TGF-β1 and HMGA1 in cancer cells is not yet fully understood. In this study, we determined the effects of TGF-β1 on HMGA1 expression in thyroid cancer cells and examined the role of HMGA1 in thyroid cancer progression...
April 7, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28393237/microrna-10b-mediates-tgf-%C3%AE-1-regulated-glioblastoma-proliferation-migration-and-epithelial-mesenchymal-transition
#19
Chengyuan Ma, Feng Wei, Huan Xia, Haiyu Liu, Xuechao Dong, Yandong Zhang, Qinghua Luo, Yan Liu, Yang Li
Although it is well known that exaggerated proliferation, metastasis and the mesenchymal subtype is related with worst prognoses in glioblastoma (GBM) and that transforming growth factor-β1 (TGF-β1) is a potent factor in regulating the proliferation, migration and epithelial-mesenchymal transition (EMT) phenotype of GBM, the detailed mechanisms are still far from elucidated. MicroRNAs (miRNAs) are small non-coding RNAs which play critical roles in various diseases by regulating target gene expression. We report that miR-10b, a molecule downstream of TGF-β1, is involved in TGF-β1-regulated GBM cell proliferation, migration and EMT...
April 4, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28393230/the-mechanism-of-epithelial-mesenchymal-transition-induced-by-tgf-%C3%AE-1-in-neuroblastoma-cells
#20
Jing-Bo Shao, Zhi-Mei Gao, Wen-Yan Huang, Zhi-Bao Lu
Neuroblastoma is the second most common extracranial malignant solid tumor that occurs in childhood, and metastasis is one of the major causes of death in neuroblastoma patients. The epithelial-mesenchymal transition (EMT) is an important mechanism for both the initiation of tumor invasion and subsequent metastasis. Therefore, this study investigated the mechanism by which transforming growth factor (TGF)-β1 induces EMT in human neuroblastoma cells. Using quantitative RT-qPCR and western blot analyses, we found that the mRNA and protein expression levels of E-cadherin were significantly decreased, whereas that of α-SMA was significantly increased after neuroblastoma cells were treated with different concentrations of TGF-β1...
April 5, 2017: International Journal of Oncology
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