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Mesenchymal epithelial transition

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https://www.readbyqxmd.com/read/29352327/limk-cofilin-pathway-and-slingshot-are-implicated-in-human-colorectal-cancer-progression-and-chemoresistance
#1
Helen Aggelou, Panagiota Chadla, Sofia Nikou, Sofia Karteri, Ioannis Maroulis, Haralabos P Kalofonos, Helen Papadaki, Vasiliki Bravou
Cofilin phospho-regulation is important for actin filament turnover and is implicated in cancer. Phosphorylation of cofilin is mediated by LIM kinases (LIMKs) and dephosphorylation by Slingshot phosphatases (SSH). LIMKs and SSH promote cancer cell invasion and metastasis and represent novel anti-cancer targets. However, little is known regarding LIMK/cofilin and SSH in human colorectal cancer (CRC). In this study, we aimed to address their expression and significance in human CRC. We evaluated expression of non-phosphorylated (active) and phosphorylated cofilin, LIMK1, LIMK2, and SSH1 by immunohistochemistry in 143 human CRC samples in relation to clinicopathologic parameters, response of metastatic disease to chemotherapy, and epithelial-mesenchymal transition (EMT) markers β-catenin, E-cadherin, and ZEB...
January 19, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29352246/u-box-ubiquitin-ligase-ppil2-suppresses-breast-cancer-invasion-and-metastasis-by-altering-cell-morphology-and-promoting-snai1-ubiquitination-and-degradation
#2
Zhaojun Jia, Miao Wang, Shujing Li, Xiahui Li, Xiao-Yan Bai, Zhaowei Xu, Yangyang Yang, Bowen Li, Yanan Li, Huijian Wu
Metastasis is the leading cause of breast cancer fatalities. To develop new therapeutic strategies, the mechanisms underlying breast cancer invasion and metastasis need to be further investigated. Peptidylprolyl isomerase (cyclophilin)-like 2 (PPIL2) is a U-box-type E3 ubiquitin ligase belonging to the cyclophilin family. Proteins within this family are the major cytosolic binding proteins of the immunosuppressant drug cyclosporine A (CsA). Although PPIL2 has been reported to potentially be involved in cell migration, its role in breast cancer is still unclear...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352232/the-silent-healer-mir-205-5p-up-regulation-inhibits-epithelial-to-mesenchymal-transition-in-colon-cancer-cells-by-indirectly-up-regulating-e-cadherin-expression
#3
Diana Gulei, Lorand Magdo, Ancuta Jurj, Lajos Raduly, Roxana Cojocneanu-Petric, Alin Moldovan, Cristian Moldovan, Adrian Florea, Sergiu Pasca, Laura-Ancuta Pop, Vlad Moisoiu, Liviuta Budisan, Cecilia Pop-Bica, Cristina Ciocan, Rares Buiga, Mihai-Stefan Muresan, Rares Stiufiuc, Calin Ionescu, Ioana Berindan-Neagoe
EMT represents the dominant program within advanced stages of colon cancer, where cells acquire migratory characteristics in order to invade secondary tissues and form metastasis. Where the majority of the therapeutic strategies are concentrated on the reduction of the tumor mass through different apoptotic mechanisms, the present study advocates an important role for miR-205-5p in impairment of colon cancer cells migration and restoration of the epithelial phenotype. Upon identification of a homogenous downregulated profile for miR-205-5p in colon adenocarcinoma patients, functional studies demonstrated that experimental upregulation of this sequence is able to significantly raise the levels of E-cadherin through direct inhibition of ZEB1...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352113/polo-like-kinase-4-mediates-epithelial-mesenchymal-transition-in-neuroblastoma-via-pi3k-akt-signaling-pathway
#4
Xiangdong Tian, Dejun Zhou, Lu Chen, Yao Tian, Benfu Zhong, Yanna Cao, Qiuping Dong, Meng Zhou, Jie Yan, Yalei Wang, Yanli Qiu, Lianmin Zhang, Zhongyuan Li, Huijuan Wang, Daowei Wang, Guoguang Ying, Qiang Zhao
Neuroblastoma (NB) is the most common malignant tumor in infancy and most common extracranial solid tumor in childhood. With the improvement of diagnosis and treatment, the survival rate of patients with low-risk and intermediate-risk NB can reach up to 90%. In contrast, for high-risk NBs, the long-term survival rate is still <40% because of heterogeneity of this tumor. The pathogenesis of NB is still not explicit, therefore it is of great significance to explore the mechanism of NB tumorigenesis and discover new therapeutic targets for NB...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29350680/effects-of-microrna-135a-on-the-epithelial-mesenchymal-transition-migration-and-invasion-of-bladder-cancer-cells-by-targeting-gsk3%C3%AE-through-the-wnt-%C3%AE-catenin-signaling-pathway
#5
Xia-Wa Mao, Jia-Quan Xiao, Zhong-Yi Li, Yi-Chun Zheng, Nan Zhang
This study investigated the effects of microRNA-135a (miR-135a) targeting of glycogen synthase kinase 3β (GSK3β) on the epithelial-mesenchymal transition (EMT), migration and invasion of bladder cancer (BC) cells by mediating the Wnt/β-catenin signaling pathway. BC and adjacent normal tissues were collected from 165 BC patients. Western blotting and quantitative real-time PCR were used to detect the expression of GSK3β, β-catenin, cyclinD1, E-cadherin, vimentin and miR-135a in BC tissues and cells. Cells were assigned to blank, negative control (NC), miR-135a mimics, miR-135a inhibitors, small interfering RNA (siRNA)-GSK3β or miR-135a inhibitors+siRNA-GSK3β groups...
January 19, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29350614/lipg-signaling-promotes-tumor-initiation-and-metastasis-of-human-basal-like-triple-negative-breast-cancer
#6
Pang-Kuo Lo, Yuan Yao, Ji Shin Lee, Yongshu Zhang, Weiliang Huang, Maureen A Kane, Qun Zhou
Current understanding of aggressive human basal-like triple-negative breast cancer (TNBC) remains incomplete. In this study, we show endothelial lipase (LIPG) is aberrantly overexpressed in basal-like TNBCs. We demonstrate that LIPG is required for in vivo tumorigenicity and metastasis of TNBC cells. LIPG possesses a lipase-dependent function that supports cancer cell proliferation and a lipase-independent function that promotes invasiveness, stemness and basal/epithelial-mesenchymal transition features of TNBC...
January 19, 2018: ELife
https://www.readbyqxmd.com/read/29349903/gp73-promotes-invasion-and-metastasis-of-bladder-cancer-by-regulating-the-epithelial-mesenchymal-transition-through-the-tgf-%C3%AE-1-smad2-signalling-pathway
#7
Han-Jie Yang, Ge-Liang Liu, Bo Liu, Tian Liu
This study investigated the effects of Golgi membrane protein 73 (GP73) on the epithelial-mesenchymal transition (EMT) and on bladder cancer cell invasion and metastasis through the TGF-β1/Smad2 signalling pathway. Paired bladder cancer and adjacent tissue samples (102) and normal bladder tissue samples (106) were obtained. Bladder cancer cell lines (T24, 5637, RT4, 253J and J82) were selected and assigned to blank, negative control (NC), TGF-β, thrombospondin-1 (TSP-1), TGF-β1+ TSP-1, GP73-siRNA-1, GP73-siRNA-2, GP73-siRNA-1+ TSP-1, GP73-siRNA-1+ pcDNA-GP73, WT1-siRNA and WT1-siRNA + GP73-siRNA-1 groups...
January 19, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29349669/positive-correlation-between-matrix-metalloproteinases-and-epithelial-to-mesenchymal-transition-and-its-association-with-clinical-outcome-in-bladder-cancer-patients
#8
R Singh, A Mandhani, V Agrawal, Minal Garg
Involvement of matrix metalloproteinases (MMPs) in the pathogenesis of urothelial carcinoma elects them to be sensitive marker for clinical and prognostic implications. MMPs regulate tumor growth and invasion by inducing epithelial-to-mesenchymal transition (EMT) which is characterized by the complex reprogramming of epithelial cells and ultimately bring about major changes in the structural organization of bladder urothelium. The present study has been undertaken to evaluate the clinical relevance of MMPs in two distinct types of bladder cancer disease...
January 18, 2018: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
https://www.readbyqxmd.com/read/29348894/the-efficacy-and-safety-of-tivantinib-in-the-treatment-of-solid-tumors-a-systematic-review-and-meta-analysis
#9
Hao Zhang, Zhengqiang Bao, Hongwei Liao, Wen Li, Zhihua Chen, Huahao Shen, Songmin Ying
Background: Tivantinib was designed to kill cancers by targeting the mesenchymal-epithelial transition (MET) protein. Although numerous tivantinib clinical trials are ongoing, tivantinib's efficacy and safety are still not clear. This meta-analysis was done to evaluate tivantinib's efficacy and safety in solid tumor treatment. Materials and Methods: PUBMED, EMBASE, and other databases were searched for eligible tivantinib clinical trials. The hazard ratio (HR) and 95% confidence interval (CI) of progression-free and overall survival (PFS and OS, respectively) were pooled and analyzed to evaluate tivantinib's efficacy...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348886/frk-inhibits-breast-cancer-cell-migration-and-invasion-by-suppressing-epithelial-mesenchymal-transition
#10
Yetunde Ogunbolude, Chenlu Dai, Edward T Bagu, Raghuveera Kumar Goel, Sayem Miah, Joshua MacAusland-Berg, Chi Ying Ng, Rajni Chibbar, Scott Napper, Leda Raptis, Frederick Vizeacoumar, Franco Vizeacoumar, Keith Bonham, Kiven Erique Lukong
The human fyn-related kinase (FRK) is a non-receptor tyrosine kinase known to have tumor suppressor activity in breast cancer cells. However, its mechanism of action has not been fully characterized. We generated FRK-stable MDA-MB-231 breast cancer cell lines and analyzed the effect on cell proliferation, migration, and invasiveness. We also used kinome analysis to identify potential FRK-regulated signaling pathways. We employed both immunoblotting and RT-PCR to identify/validate FRK-regulated targets (proteins and genes) in these cells...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348665/pcdhga9-acts-as-a-tumor-suppressor-to-induce-tumor-cell-apoptosis-and-autophagy-and-inhibit-the-emt-process-in-human-gastric-cancer
#11
Junyong Weng, Jingbo Xiao, Yushuai Mi, Xu Fang, Yahuang Sun, Shanbao Li, Zhiwei Qin, Xu Li, Tingting Liu, Senlin Zhao, Lisheng Zhou, Yugang Wen
The results of a cDNA  array revealed that protocadherin gamma subfamily A, 9 (PCDHGA9) was significantly decreased in SGC-7901 gastric cancer (GC) cells compared with GES-1 normal gastric cells and was strongly associated with the Wnt/β-catenin and transforming growth factor-β (TGF-β)/Smad2/3 signaling pathway. As a member of the cadherin family, PCDHGA9 functions in both cell-cell adhesion and nuclear signaling. However, its role in tumorigenicity or metastasis has not been reported. In the present study, we found that PCDHGA9 was decreased in GC tissues compared with corresponding normal mucosae and its expression was correlated with the GC TNM stage, the UICC stage, differentiation, relapse, and metastasis (p < 0...
January 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29348540/human-colorectal-cancer-derived-mesenchymal-stem-cells-promote-colorectal-cancer-progression-through-il-6-jak2-stat3-signaling
#12
Xiaochao Zhang, Fayong Hu, Geng Li, Guodong Li, Xi Yang, Liang Liu, Rongsheng Zhang, Bixiang Zhang, Yongdong Feng
Mesenchymal stem cells (MSCs) have been reported to localize in colorectal carcinomas, and participate in the formation of the tumor microenvironment. They have recently been isolated from colorectal cancer tissues, and are implicated in the growth, invasion, and metastasis of cancer cells. However, the roles and detailed mechanisms associated with human colorectal cancer-derived MSCs (CC-MSCs) have not been fully addressed. In this study, we found that CC-MSCs increased the migration and invasion of colorectal cancer cells and promoted the tumorigenesis of colorectal cancer through epithelial-to-mesenchymal transition (EMT) in vitro...
January 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29348465/publisher-correction-efhd2-promotes-epithelial-to-mesenchymal-transition-and-correlates-with-postsurgical-recurrence-of-stage-i-lung-adenocarcinoma
#13
Chi-Chen Fan, Wei-Chung Cheng, Yu-Chuen Huang, Yuh-Pyng Sher, Nia-Jhen Liou, Yu-Chuan Chien, Pei-Shan Lin, Pei-Syuan Lin, Chung-Hsuan Chen, Wei-Chao Chang
A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348456/twist1-induces-expression-of-discoidin-domain-receptor-2-to-promote-ovarian-cancer-metastasis
#14
Whitney R Grither, Laura M Divine, Eric H Meller, Daniel J Wilke, Riva A Desai, Andrew J Loza, Peinan Zhao, Anne Lohrey, Gregory D Longmore, Katherine C Fuh
The mesenchymal gene program has been shown to promote the metastatic progression of ovarian cancer; however, specific proteins induced by this program that lead to these metastatic behaviors have not been identified. Using patient derived tumor cells and established human ovarian tumor cell lines, we find that the Epithelial-to-Mesenchymal Transition inducing factor TWIST1 drives expression of discoidin domain receptor 2 (DDR2), a receptor tyrosine kinase (RTK) that recognizes fibrillar collagen as ligand...
January 19, 2018: Oncogene
https://www.readbyqxmd.com/read/29348394/hoxc6-predicts-invasion-and-poor-survival-in-hepatocellular-carcinoma-by-driving-epithelial-mesenchymal-transition
#15
Pin-Dong Li, Peng Chen, Xin Peng, Charlie Ma, Wen-Jie Zhang, Xiao-Fang Dai
Aberrant expression of HOXC6 has been reported in several malignant tumors, yet little is known about the value of HOXC6 in invasion and prognosis of hepatocellular carcinoma (HCC). HOXC6 expression was positively correlated with high AFP level, liver cirrhosis, larger tumor, vascular invasion and BCLC stage. Kaplan-Meier analysis revealed that HOXC6 was an independent predictor for overall survival (OS) and time to recurrence (TTR). In addition, HOXC6 status could act as prognostic predictor in different risk subgroups...
January 15, 2018: Aging
https://www.readbyqxmd.com/read/29347911/micrornas-associated-with-early-neural-crest-development-in-xenopus-laevis
#16
Nicole J Ward, Darrell Green, Janet Higgins, Tamas Dalmay, Andrea Münsterberg, Simon Moxon, Grant N Wheeler
BACKGROUND: The neural crest (NC) is a class of transitory stem cell-like cells unique to vertebrate embryos. NC cells arise within the dorsal neural tube where they undergo an epithelial to mesenchymal transition in order to migrate and differentiate throughout the developing embryo. The derivative cell types give rise to multiple tissues, including the craniofacial skeleton, peripheral nervous system and skin pigment cells. Several well-studied gene regulatory networks underpin NC development, which when disrupted can lead to various neurocristopathies such as craniofrontonasal dysplasia, DiGeorge syndrome and some forms of cancer...
January 18, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29346350/epithelial-mesenchymal-transition-in-crohn-s-disease
#17
REVIEW
H Jiang, J Shen, Z Ran
Crohn's disease (CD) is often accompanied by the complications of intestinal strictures and fistulas. These complications remain obstacles in CD treatment. In recent years, the importance of epithelial-mesenchymal transition in the pathogenesis of CD-associated fistulas and intestinal fibrosis has become apparent. Epithelial-mesenchymal transition refers to a dynamic change, wherein epithelial cells lose their polarity and adherence and acquire migratory function and fibroblast features. During formation of CD-associated fistulas, intestinal epithelial cells dislocate from the basement membrane and migrate to the lining of the fistula tracts, where they convert into transitional cells as a compensatory response under the insufficient wound healing condition...
December 20, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/29345578/searching-for-new-targets-and-treatments-in-the-battle-against-squamous-cell-carcinoma-of-the-head-and-neck-with-specific-focus-on-tumours-of-the-tongue
#18
Nicola Sgaramella, Xiaolian Gu, Linda Boldrup, Philip J Coates, Robin Fahraeus, Luigi Califano, Gianpaolo Tartaro, Giuseppe Colella, Lena Norberg Spaak, Adrian Strom, Torben Wilms, Lorenzo Lo Muzio, Giovanni Dell'Aversana Orabona, Mario Santagata, Lotta Loljung, Riccardo Rossiello, Karin Danielsson, Klas Strindlund, Sandra Lillqvist, Karin Nylander
Squamous cell carcinoma of the head and neck, SCCHN, is a heterogeneous group of tumours not only concerning site of origin but also regarding aetiology. The 5-year survival for the whole group of SCCHN tumours has not significantly improved over the last 20-25 years. Apart from tumour spread to lymph nodes, N status, gains and losses of specific chromosomes are the only factors shown to be independent prognostic markers for these tumours. Worldwide an increasing number of people ? 40 years are seen being affected by tongue SCC, the most common tumour within the SCCHN group...
January 16, 2018: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/29345394/viruses-as-key-modulators-of-the-tgf-%C3%AE-pathway-a-double-edged-sword-involved-in-cancer
#19
REVIEW
Habibollah Mirzaei, Ebrahim Faghihloo
Transforming growth factor-β (TGF-β) signaling pathway is a key network in cell signaling that controls vital processes such as proliferation, differentiation, apoptosis, epithelial-mesenchymal transition, and migration, thus acting as a double-edged sword in normal development and diseases, in particular organ fibrosis, vascular disorders, and cancer. Early in tumorigenesis, the pathway exerts anti-tumor effects through suppressing cell cycle and inducing apoptosis, while during late stages, it functions as a tumor promoter by enhancing tumor invasiveness and metastasis...
January 18, 2018: Reviews in Medical Virology
https://www.readbyqxmd.com/read/29345297/mir-135b-5p-promotes-gastric-cancer-progression-by-targeting-cmtm3
#20
Mingdong Lu, Yingpeng Huang, Weijian Sun, Pihong Li, Liyi Li, Leping Li
CKLF-like MARVEL transmembrane domain containing 3 (CMTM3) is considered to be a tumor suppressor gene in multiple types of malignancies. Previous studies have indicated that CMTM3 suppresses metastasis and epithelial-mesenchymal transition (EMT) in gastric cancer. However, its role in gastric cancer cell proliferation has rarely been discussed. Moreover, the regulatory mechanisms of CMTM3 in gastric cancer remain unclear. In this study, RT‑qPCR and IHC were used to assess the expression of CMTM3 and miR‑135b‑5p in gastric cancer tissues and cell lines...
February 2018: International Journal of Oncology
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