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https://www.readbyqxmd.com/read/29457853/mesenchymal-epithelial-transition-of-pancreatic-cancer-cells-at-perineural-invasion-sites-is-induced-by-schwann-cells
#1
Yoko Fujii-Nishimura, Ken Yamazaki, Yohei Masugi, Junya Douguchi, Yutaka Kurebayashi, Naoto Kubota, Hidenori Ojima, Minoru Kitago, Masahiro Shinoda, Akinori Hashiguchi, Michiie Sakamoto
Epithelial-mesenchymal transition (EMT) promotes invasion and metastasis of pancreatic ductal adenocarcinoma (PDAC). However, the importance of its reverse process, mesenchymal-epithelial transition (MET), for PDAC remains unclear. We aimed to characterize the histological finding "focal differentiation" in PDAC at perineural invasion sites in the context of MET and to investigate the role of Schwann cells in inducing tumor MET. Tumor differentiation and immunohistochemical expressions of E-cadherin, SMAD3, and vimentin at perineural invasion sites were examined in 168 PDAC tissues...
February 19, 2018: Pathology International
https://www.readbyqxmd.com/read/29456735/metadherin-contributes-to-epithelial-mesenchymal-transition-and-paclitaxel-resistance-induced-by-acidic-extracellular-ph-in-nasopharyngeal-carcinoma
#2
Changyun Yu, Yong Liu, Zhaobing Qin
Paclitaxel resistance is a challenge to the treatment of nasopharyngeal carcinoma (NPC). An acidic extracellular pH (pHe ), a hallmark of solid tumors, is demonstrated to decrease the efficacy of chemotherapy. However, the precise function of acidic pHe in mediating chemotherapy in NPC remains unknown. In the present study, acidic pHe significantly decreased the cytotoxicity of paclitaxel in NPC cells. In addition, epithelial-mesenchymal transition (EMT)-like changes were observed in NPC cells cultured at acidic pHe ...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29456733/fbxw7-regulates-renal-cell-carcinoma-migration-and-invasion-via-suppression-of-the-epithelial-mesenchymal-transition
#3
Hongchao He, Jun Dai, Zhaoping Xu, Wei He, Xiaojing Wang, Yu Zhu, Haofei Wang
F-box and WD repeat domain containing 7 (Fbxw7) is an F-box protein that belongs to the SKP1-CUL1-F-box protein E3 ligase complex and is responsible for transferring the ubiquitin molecule to the substrate, which results in its recognition and subsequent degradation by proteasomes. Furthermore, it can identify a network of signaling proteins that function in cell growth, diversion and apoptosis. In the present study, Fbxw7 was downregulated in renal cell carcinoma (RCC) tissues compared with the adjacent non-tumor tissues and its expression was significantly associated with the tumor-node-metastasis stage, lymph node metastasis and distant metastasis in patients with RCC...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29456714/foxk1-promotes-glioblastoma-proliferation-and-metastasis-through-activation-of-snail-transcription
#4
Haitao Xu, Shulan Huang, Xiaonan Zhu, Wangcheng Zhang, Xiangyang Zhang
Forkhead box K1 (FOXK1) has been identified to have a crucial function in development and oncogenesis. However, its role in glioblastoma has remained largely elusive and was therefore assessed in the present study. In human glioblastoma multiforme (GBM) tissue samples, FOXK1 was determined to be highly expressed compared with adjacent normal tissue samples. In addition, high levels of FOXK1 were detected in the T98G and LN18 GBM cell lines as compare with those in normal human astrocytes. Of note, high expression of FOXK1 was revealed to be associated with metastasis and tumor size...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456682/l1cam-promotes-epithelial-to-mesenchymal-transition-and-formation-of-cancer-initiating-cells-in-human-endometrial-cancer
#5
Jinlong Chen, Fufeng Gao, Naifu Liu
Identification of novel factors critical for epithelial to mesenchymal transition (EMT) and cancer initiating cell (CIC) formation may aid in the identification of novel therapeutics for the treatment of endometrial cancer. The present study demonstrated that L1 cell adhesion molecule (CAM) is critical for EMT and formation of CICs in endometrial cancer. Overexpression of L1CAM may promote EMT with increased formation of CICs in HEC-1A endometrial cancer cells. CICs and mesenchymal status resist chemotherapeutic drugs and may regenerate the various cell types in tumors, thereby resulting in relapse of the disease...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29455395/anti-cancer-effect-of-aquaporin-5-silencing-in-colorectal-cancer-cells-in-association-with-inhibition-of-wnt-%C3%AE-catenin-pathway
#6
Wei Wang, Qing Li, Tao Yang, Dongsheng Li, Feng Ding, Hongzhi Sun, Guang Bai
Aquaporin 5 (AQP5) is a water channel protein that is over-expressed in many tumors. Elevated expression of AQP5 is associated with poor prognosis of colorectal cancer. Yet, whether AQP5 plays a role in epithelial-mesenchymal transition (EMT) of colorectal cancer has not been reported until now. Here we aim to investigate the function of AQP5 in the EMT process of colorectal cancer. We transfected HCT116 and SW480 cells with AQP5-specific shRNA and verified the knockdown efficiency through western blotting and real-time PCR...
February 17, 2018: Cytotechnology
https://www.readbyqxmd.com/read/29454361/wnt-signaling-enhances-neural-crest-migration-of-melanoma-cells-and-induces-an-invasive-phenotype
#7
Tobias Sinnberg, Mitchell P Levesque, Jelena Krochmann, Phil F Cheng, Kristian Ikenberg, Francisco Meraz-Torres, Heike Niessner, Claus Garbe, Christian Busch
BACKGROUND: During embryonic development Wnt family members and bone morphogenetic proteins (BMPs) cooperatively induce epithelial-mesenchymal transition (EMT) in the neural crest. Wnt and BMPs are reactivated during malignant transformation in melanoma. We previously demonstrated that the BMP-antagonist noggin blocked the EMT phenotype of melanoma cells in the neural crest and malignant invasion of melanoma cells in the chick embryo; vice-versa, malignant invasion was induced in human melanocytes in vivo by pre-treatment with BMP-2...
February 17, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29453984/gata3-acetylation-at-k119-by-cbp-inhibits-cell-migration-and-invasion-in-lung-adenocarcinoma
#8
Xueying Li, Jiaqi Jin, Siyuan Yang, Weizhi Xu, Xianbin Meng, Haiteng Deng, Jun Zhan, Shan Gao, Hongquan Zhang
GATA3 is a transcriptional factor involved in the development of multiple organs. Post translational modifications of GATA3 are critical to its function. Here, we report that GATA3 interacts with and is acetylated by the acetyltransferase CBP. Class I deacetylases HDAC1, HDAC2 and HDAC3 deacetylate GATA3. The major acetylated site of GATA3 in lung adenocarcinoma cells was determined at lysine 119 (AcK119). Functionally, GATA3-acetylation mimics K119Q mutant was found to inhibit lung adenocarcinoma cell migration and invasion with concomitant downregulation of EMT-controlling transcriptional factors Slug, Zeb1 and Zeb2...
February 14, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29453983/aldolase-a-overexpression-is-associated-with-poor-prognosis-and-promotes-tumor-progression-by-the-epithelial-mesenchymal-transition-in-colon-cancer
#9
Feng Ye, Yixing Chen, Lu Xia, Jiabian Lian, Shuyu Yang
There is increasing evidence that glycolysis is involved in cancer progression. Aldolase is a glycolytic enzyme that catalyzes the reversible conversion of fructose-1,6-bisphosphate to glyceraldehyde-3-phosphate and dihydroxyacetone phosphate. Disruption of the aldolase genes also plays a role in the progression of multiple types of cancer. However, the underlying mechanism of the action of aldolases in colon cancer progression remains elusive. In this study, aldolase A expression was investigated and found to be upregulated along with human colon cancer progression and metastasis at both the mRNA and protein levels in human colon cancer tissues...
February 14, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29453319/leptin-signaling-mediates-obesity-associated-csc-enrichment-and-emt-in-preclinical-tnbc-models
#10
Laura W Bowers, Emily L Rossi, Shannon B McDonell, Steven S Doerstling, Subreen A Khatib, Claire G Lineberger, Jody E Albright, Xiaohu Tang, Linda A deGraffenried, Stephen D Hursting
Obesity is associated with poor prognosis in triple-negative breast cancer (TNBC). Preclinical models of TNBC were used to test the hypothesis that increased leptin signaling drives obesity-associated TNBC development by promoting cancer stem cell (CSC) enrichment and/or epithelial-to-mesenchymal transition (EMT). MMTV-Wnt-1 transgenic mice, which develop spontaneous basal-like, triple-negative mammary tumors, received either a control diet (10% kcal from fat) or a diet-induced obesity regimen (DIO, 60% kcal from fat) for up to 42 weeks (n=15/group)...
February 16, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29452232/long-noncoding-rna-pvt1-promotes-emt-via-mediating-microrna-186-targeting-of-twist1-in-prostate-cancer
#11
Zhongwen Chang, Jun Cui, Yongsheng Song
The pathogenesis and the underlying mechanism of endothelial-mesenchymal transition in prostate cancer remain unclear. Plasmacytoma variant translocation 1 (PVT1), a novel long non-coding RNA maps to 8q24.21, and in many tumor studies the up-regulation of PVT1 has already been reported. PVT1 is closely related to tumor cell proliferation, invasion, and metastasis. In this study, we employed a combination of techniques to study the role of PVT1 in prostate cancer, which included bioinformatic analysis, Western blotting and cell migration assays of prostate cancer cell lines...
February 13, 2018: Gene
https://www.readbyqxmd.com/read/29452214/pgrn-promotes-lymphangiogenesis-through-vegf-c-and-is-an-independent-risk-factor-in-human-esophageal-cancers
#12
Guanhua Li, Taotao Dong, Dong Yang, Aiqin Gao, Judong Luo, Hongyan Yang, Linlin Wang
Lymph node metastasis is one of the most important predictor of the prognosis for esophageal cancer (EC) patients. Yet, the mechanism underlying the lymph node metastasis is largely unknown. Progranulin (PGRN) is shown to be highly expressed in various types of cancers and could promote the angiogenesis and epithelial mesenchymal transition (EMT) of cancer cells in previous studies. However, the expression status of PGRN and its effects on the lymphangiogenesis in EC is largely unclear. In this study, we show for the first time that PGRN is expressed in EC tissue samples and cell lines and could promote the expression of VEGF-C in vitro, a well-known lymphangiogenesis inducer, through the putative signaling transducers p-ERK and p-AKT...
February 13, 2018: Human Pathology
https://www.readbyqxmd.com/read/29451351/delphinidin-induces-apoptosis-and-inhibits-epithelial-to-mesenchymal-transition-via-the-erk-p38-mapk-signaling-pathway-in-human-osteosarcoma-cell-lines
#13
Hae-Mi Kang, Bong-Soo Park, Hyun-Kyung Kang, Hae-Ryoun Park, Su-Bin Yu, In-Ryoung Kim
Delphinidin is major anthocyanidin that is extracted from many pigmented fruits and vegetables. This substance has anti-oxidant, anti-inflammatory, anti-angiogenic, and anti-cancer properties. In addition, delphinidin strongly suppresses the migration and invasion of various cancer cells during tumorigenesis. Although delphinidin has anti-cancer effects, little is known about its functional roles in osteosarcoma (OS). For these reasons, we have demonstrated the effects of delphinidin on OS cell lines. The effects of delphinidin on cell viability and growth of OS cells were assessed using the MTT assay and colony formation assays...
February 16, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29451178/involvement-of-epithelial-mesenchymal-transition-in-liver-fibrosis
#14
REVIEW
Kangkang Yu, Qian Li, Guangfeng Shi, Ning Li
Fibrosis of the liver is an inherent wound healing response to chronic liver injury. Regeneration of liver epithelium and restoration of normal liver structure were generally involved in this process. Although the liver has a striking capacity to adapt to damage through tissue repair, excessive accumulation of extracellular matrix during this process often leads to scar tissue formation and subsequent fibrosis. Epithelial to mesenchymal transition (EMT) enables a polarized epithelial cell to undergo multiple changes biochemically and to bear a mesenchymal cell phenotype...
January 2018: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/29448106/folic-acid-prevents-methotrexate-induced-epithelial-mesenchymal-transition-via-suppression-of-secreted-factors-from-the-human-alveolar-epithelial-cell-line-a549
#15
Masashi Kawami, Rika Harabayashi, Risako Harada, Yohei Yamagami, Ryoko Yumoto, Mikihisa Takano
Methotrexate (MTX) often induces serious lung diseases such as pulmonary fibrosis. Although MTX is known to be a folic acid (FA) antagonist, the effect of FA on MTX-induced lung injury remains unclear. Recent studies indicate that epithelial-mesenchymal transition (EMT) is involved in pulmonary fibrosis. Here, we aimed to clarify the effect of FA on MTX-induced EMT in human alveolar epithelial cell line A549 using conditioned medium (CM). CM was prepared from the supernatants of A549 cells treated with MTX in the absence (CMM) or presence (CMMF) of FA...
February 12, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29446253/elevated-trim44-promotes-intrahepatic-cholangiocarcinoma-progression-by-inducing-cell-emt-via-mapk-signaling
#16
Rui Peng, Peng-Fei Zhang, Chi Zhang, Xiao-Yong Huang, Yan-Bing Ding, Bin Deng, Dou-Sheng Bai, Ya-Ping Xu
Surgical results for intrahepatic cholangiocarcinoma (ICC) remain unsatisfactory due to the high rate of recurrence. Here, we investigated that the expression and roles of tripartite motif-containing protein 44 (TRIM44) in human ICCs. Firstly, TRIM44 expression was analyzed in several kinds of cancers by referring to public Oncomine database, and the expressions of TRIM44 mRNA and protein were tested in ICC and corresponding paratumorous tissues. Secondly, functions and mechanisms of TRIM44 in ICC cells were further evaluated by TRIM44 interference and cDNA transfection...
February 15, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29446048/adiponectin-and-colon-cancer-evidence-for-inhibitory-effects-on-viability-and-migration-of-human-colorectal-cell-lines
#17
E Nigro, P Schettino, R Polito, O Scudiero, M L Monaco, G D De Palma, A Daniele
Adiponectin (Acrp30) is an adipokine widely studied for its beneficial metabolic and anti-inflammatory properties. Colorectal cancer is among the most common cancers worldwide. The aim of present study was to explore the effects of Acrp30 on both CaCo-2 and HCT116 colorectal cancer cells in terms of viability, oxidative stress, and apoptosis. In addition, since colorectal cancer represents a typical inflammation-related cancer, we investigated whether Acrp30 treatment modifies the migration and the expression of crucial proteins in the EMT transition...
February 14, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29445342/the-a-2b-adenosine-receptor-modulates-the-epithelial-mesenchymal-transition-through-the-balance-of-camp-pka-and-mapk-erk-pathway-activation-in-human-epithelial-lung-cells
#18
Chiara Giacomelli, Simona Daniele, Chiara Romei, Laura Tavanti, Tommaso Neri, Ilaria Piano, Alessandro Celi, Claudia Martini, Maria L Trincavelli
The epithelial-mesenchymal transition (EMT) is a complex process in which cell phenotype switches from the epithelial to mesenchymal one. The deregulations of this process have been related with the occurrence of different diseases such as lung cancer and fibrosis. In the last decade, several efforts have been devoted in understanding the mechanisms that trigger and sustain this transition process. Adenosine is a purinergic signaling molecule that has been involved in the onset and progression of chronic lung diseases and cancer through the A 2B adenosine receptor subtype activation, too...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29445189/stk17b-promotes-carcinogenesis-and-metastasis-via-akt-gsk-3%C3%AE-snail-signaling-in-hepatocellular-carcinoma
#19
Yaliang Lan, Jihua Han, Yan Wang, Jiabei Wang, Guangchao Yang, Keyu Li, Ruipeng Song, Tongsen Zheng, Yingjian Liang, Shangha Pan, Xirui Liu, Mingxi Zhu, Yao Liu, Fanzheng Meng, Manzoor Mohsin, Yifeng Cui, Bo Zhang, Sharma Subash, Lianxin Liu
Hepatocellular carcinoma (HCC) is a lethal malignancy worldwide with frequent intrahepatic and distant metastasis. Elucidating the underlying molecular mechanism that modulates HCC progression is critical for exploring novel therapeutic strategies. Serine/Threonine Kinase 17B (STK17B) is upregulated in HCC tissues, but its role in HCC progression remains elusive. In the present studies, we reported that STK17B had a critical role in HCC progression. STK17B was significantly upregulated in HCC cell lines and specimens, and patients with ectopic STK17B expression characterized with poor clinicopathological features...
February 14, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29444383/stemness-and-anti-cancer-drug-resistance-in-abcg2-highly-expressed-pancreatic-cancer-is-induced-on-3d-culture-condition
#20
Norihiko Sasaki, Toshiyuki Ishiwata, Fumio Hasegawa, Masaki Michishita, Hiroki Kawai, Yoko Matsuda, Tomio Arai, Naoshi Ishikawa, Junko Aida, Kaiyo Takubo, Masashi Toyoda
The expression of ATP-binding cassette subfamily G member 2 (ABCG2) is related with tumorigenic cancer stem cells (CSCs) in several cancers. However, the effects of ABCG2 on CSC-related malignant characteristics in pancreatic ductal adenocarcinoma (PDAC) are not well elucidated. In this study, we compared the characteristics of low (ABCG2-) and high (ABCG2+)-ABCG2-expressing PDAC cells after cell sorting. In adherent culture condition, human PDAC cells, PANC-1, contained approximately 10% ABCG2+ cell populations, and ABCG2+ cells displayed more and longer microvilli compared with ABCG2- cells...
February 14, 2018: Cancer Science
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