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colon cancer, EMT

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https://www.readbyqxmd.com/read/28915620/prpf-overexpression-induces-drug-resistance-through-actin-cytoskeleton-rearrangement-and-epithelial-mesenchymal-transition
#1
Salman Ul Islam, Adeeb Shehzad, Jong Kyung Sonn, Young Sup Lee
Pre-mRNA processing factor (PRPF) 4B kinase belongs to the CDK-like kinase family, and is involved in pre-mRNA splicing, and in signal transduction. In this study, we observed that PRPF overexpression decreased the intracellular levels of reactive oxygen species, and inhibited resveratrol-induced apoptosis by activating the cell survival signaling proteins NFκB, ERK, and c-MYC in HCT116 human colon cancer cells. PRPF overexpression altered cellular morphology, and rearranged the actin cytoskeleton, by regulating the activity of Rho family proteins...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28912842/a-reliable-method-for-the-sorting-and-identification-of-aldh-high-cancer-stem-cells-by-flow-cytometry
#2
Zhengwei Leng, Zhao Yang, Lifa Li, Xiaorong Zhong, He Zhou, Yong Li, Gang Yang, Guangjun Zhang, Yongfu Xiong, Tong Zhou, Jianshui Li, Dongsheng Wang, Jingdong Li
Cancer stem cells (CSCs) are a rare tumorigenic population of cells found in multiple types of cancer. It has been suggested that CSCs are responsible for cancer drug resistance, metastasis and recurrence. Therefore, it is important to develop techniques to correctly sort and identify CSCs. In the current study, the sorting and identification of aldehyde dehydrogenase high (ALDH(high)) CSCs was performed using flow cytometry. Cells from three colon cancer cell lines were cultured in serum-free medium to obtain CSCs-enriched spheroid cells...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28911825/paving-the-rho-in-cancer-metastasis-rho-gtpases-and-beyond
#3
REVIEW
Sepp Jansen, Reinoud Gosens, Thomas Wieland, Martina Schmidt
Malignant carcinomas are often characterized by metastasis, the movement of carcinoma cells from a primary site to colonize distant organs. For metastasis to occur, carcinoma cells first must adopt a pro-migratory phenotype and move through the surrounding stroma towards a blood or lymphatic vessel. Currently, there are very limited possibilities to target these processes therapeutically. The family of Rho GTPases is an ubiquitously expressed division of GTP-binding proteins involved in the regulation of cytoskeletal dynamics and intracellular signaling...
September 11, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28900089/-high-content-sirna-screen-of-the-kinome-identifies-kinases-involved-in-git2-induced-mesenchymal-epithelial-transition
#4
M G Cao, J Xu, Q F Yang, Z P Guo, K B Zhang, X-B Li, S Q Wu, W Zhou
Epithelial-mesenchymal transition (EMT) and its reverse process mesenchymal-epithelial transition (MET) programs are involced in the metastatic process. More and more evidence confirms that EMT is vital for the initiation and dissemination of cancer cells whereas MET is critical for successful metastatic colonization of a secondary organ. The regulating mechanism of EMT mediated cancer progression and metastasis has been deeply investigated. However, what processes are dependent on MET in metastatic cascades remains unclear...
July 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28881781/twist1-confers-multidrug-resistance-in-colon-cancer-through-upregulation-of-atp-binding-cassette-transporters
#5
Yan-Rong Liu, Lan Liang, Jian Min Zhao, Yang Zhang, Min Zhang, Wei-Long Zhong, Qiang Zhang, Jun-Jie Wei, Meng Li, Jie Yuan, Shuang Chen, Shu-Min Zong, Hui-Juan Liu, Jing Meng, Yuan Qin, Bo Sun, Lan Yang, Hong-Gang Zhou, Tao Sun, Cheng Yang
Multidrug resistance is a major problem in colon cancer treatment. However, its molecular mechanisms remain unclear. Recently, the epithelial-mesenchymal transition (EMT) in anticancer drug resistance has attracted increasing attention. This study investigated whether vincristine treatment induces EMT and promotes multidrug resistance in colon cancer. The result showed that vincristine treatment increases the expression of several ATP-binding cassette transporters in invasive human colon adenocarcinoma cell line (HCT-8)...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28864720/overexpression-of-trpc5-promotes-tumor-metastasis-via-the-hif-1%C3%AE-twist-signaling-pathway-in-colon-cancer
#6
Zhen Chen, Yaodan Zhu, Yongfei Dong, Peng Zhang, Xiping Han, Jian Jin, Xin Ma
In cancer cells, the intracellular Ca(2+) ([Ca(2+)]i) homeostasis is altered, and this is involved in tumor initiation, progression, and metastasis. However, little is known about the underlying mechanisms. Here, we report that transient receptor potential channel 5 (TrpC5), a receptor-activated non-selective Ca(2+) channel, is correlated with tumor metastasis in colon cancer patients. Moreover, in colon cancer cells, overexpression TrpC5 caused a robust [Ca(2+)]i rise, decreased E-cadherin, and increased mesenchymal biomarker expression, then promoted cell migration, invasion, and proliferation...
September 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28863773/down-regulation-of-mirna-148a-and-mirna-625-3p-in-colorectal-cancer-is-associated-with-tumor-budding
#7
Edita Baltruskeviciene, Diana Schveigert, Vaidotas Stankevicius, Ugnius Mickys, Tadas Zvirblis, Jaroslav Bublevic, Kestutis Suziedelis, Eduardas Aleknavicius
BACKGROUND: MiRNAs are often deregulated in colorectal cancer and might function as tumor suppressors or as oncogenes. They participate in controlling key signaling pathways involved in proliferation, invasion and apoptosis and may serve as prognostic and predictive markers. In this study we aimed to evaluate the role of miRNA-148a and miRNA-625-3p in metastatic colorectal cancer. METHODS: Fifty-four patients with a first-time diagnosed CRC receiving FOLFOX ± Bevacizumab were involved in the study...
September 1, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28833104/low-folate-metabolic-stress-reprograms-dna-methylation-activated-sonic-hedgehog-signaling-to-mediate-cancer-stem-cell-like-signatures-and-invasive-tumour-stage-specific-malignancy-of-human-colorectal-cancers
#8
Hsin-Chun Feng, Jhuan-Yu Lin, Shu-Han Hsu, Wen-Yu Lan, Chang-Sheng Kuo, Yu-Feng Tian, Ding-Ping Sun, Rwei-Fen Syu Huang
The mechanistic role of colonic low folate metabolic stress (LFMS) in colorectal cancer (CRC) malignancy development remains unknown. Folate analysis on the 99 paired human CRC tissues localized LFMS to the deep invasive T3/T4 staged tumours with hypo-methylated sonic hedgehog (Shh) promoter region and amplified expressions of Shh ligand and Gli1 effectors, which coincided with deregulated expressions of the epithelial-mesenchymal transition (EMT) mediators. Colonic folate levels of CR were inversely correlated with pluripotent expressions of the SOX2, NANOG and OCT4 markers (P < 0...
August 22, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28819788/insulin-like-growth-factor-1-activates-different-catalytic-subunits-p110-of-pi3k-in-a-cell-type-dependent-manner-to-induce-lipogenesis-dependent-epithelial-mesenchymal-transition-through-the-regulation-of-adam10-and-adam17
#9
Ga Bin Park, Daejin Kim
The activation of phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) is critical for the induction of epithelial-mesenchymal transition (EMT) by growth factors, including insulin-like growth factor 1 (IGF-1). The activation of intracellular lipogenesis provides proliferative and survival signals for cancer cells. In this study, we investigated the connection between lipogenesis-related EMT processes and IGF-1-mediated PI3K p110 isoform activation in primary (SW480 cells) and metastatic (SW620) colon carcinoma cells...
August 17, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28811578/an-epithelial-to-mesenchymal-transition-inducing-potential-of-granulocyte-macrophage-colony-stimulating-factor-in-colon-cancer
#10
Yaqiong Chen, Zhi Zhao, Yu Chen, Zhonglin Lv, Xin Ding, Renxi Wang, He Xiao, Chunmei Hou, Beifen Shen, Jiannan Feng, Renfeng Guo, Yan Li, Hui Peng, Gencheng Han, Guojiang Chen
Growing evidence shows that granulocyte macrophage colony-stimulating factor (GM-CSF) has progression-promoting potentials in certain solid tumors, which is largely attributed to the immunomodulatory function of this cytokine in tumor niches. However, little is known about the effect of GM-CSF on cancer cells. Herein, we show that chronic exposure of colon cancer cells to GM-CSF, which harbor its receptor, leads to occurrence of epithelial to mesenchymal transition (EMT), in time and dose-dependent manners...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28803067/ppargc1a-is-upregulated-and-facilitates-lung-cancer-metastasis
#11
Jin-Dong Li, Qing-Chuan Feng, Yu Qi, Guanghui Cui, Song Zhao
Lung cancer remains a leading cause of cancer-related mortality, with metastatic progression remaining the single largest cause of lung cancer mortality. Hence it is imperative to determine reliable biomarkers for lung cancer prognosis. We performed quantitative real-time PCR (qRT-PCR) analysis to explore epithelial-mesenchymal transition (EMT) inducers that regulate EMT process in three patients with advanced lung cancer disease. Peroxisome proliferator-activated receptor gamma (PPARGC1A) was uniformly the topmost overexpressed gene in all three human non-small cell lung cancer (NSCLC) patient samples...
August 10, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28776332/sirolimus-and-metformin-synergistically-inhibits-colon-cancer-in-vitro-and-in-vivo
#12
Nadiar Mussin, Seung Cheol Oh, Kwang Woong Lee, Min Young Park, Sooin Seo, Nam Joon Yi, Hyeyoung Kim, Kyung Chul Yoon, Sung Woo Ahn, Hyo Sin Kim, Suk Kyun Hong, Dong Kyu Oh, Kyung Suk Suh
We estimated the effect of various immunosuppressants (ISs) and metformin (M) to provide theoretical background of optimal therapeutic strategy for de novo colon cancer after liver transplantation (LT). Three colon cancer cell lines (HT29, SW620, and HCT116) were used in in vitro studies. HT29 was also used in BALB/c-nude mice animal models. Following groups were used in both in vitro and in vivo studies: sirolimus (S), tacrolimus (T), cyclosporin A (CsA), M, metformin/sirolimus (Met/S), metformin/tacrolimus (Met/T), and metformin/cyclosporin A (Met/CsA)...
September 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28762325/activation-of-vimentin-is-critical-to-promote-a-metastatic-potential-of-cholangiocarcinoma-cells
#13
Waraporn Saentaweesuk, Norie Araki, Kulthida Vaeteewoottacharn, Atit Silsirivanit, Wunchana Seubwai, Chutima Talabnin, Kanha Muisuk, Banchob Sripa, Sopit Wongkham, Seiji Okada, Chaisiri Wongkham
Cholangiocarcinoma (CCA) is a highly metastatic tumor, of which the majority of the patients have short survival due tono effective treatment. Hence, a better understanding regarding CCA metastasis may provide an opportunity to improve the strategies for treatment. A comparison study between the highly metastatic cells and their parental cells is an approach to uncover the molecular mechanisms underlying the metastatic process. In the present study, a lung metastatic CCA cell line, KKU-214L5 was established by the in vivo selection of the tail-vein injected mouse model...
July 25, 2017: Oncology Research
https://www.readbyqxmd.com/read/28759954/prognostic-significance-of-the-genetic-and-the-immunohistochemical-expression-of-epithelial-mesenchymal-related-markers-in-colon-cancer
#14
Hayam E Rashed, Samia Hussein, Hala Mosaad, Mai M Abdelwahab, Mohamed I Abdelhamid, Salem Y Mohamed, Abdel Motaleb Mohamed, Alaa Fayed
BACKGROUND: Epithelial-mesenchymal transition (EMT) is one of the main events in colorectal cancer (CRC) spread. Snail-1 is a zinc transcription factor that mediates EMT in tumor cells probably by down-regulation of E-cadherin and claudin-1. OBJECTIVES: To detect the expression of epithelial markers (claudin-1 and E-cadherin) and mesenchymal markers (snail-1 and vimentin) in primary cancer colon. Also, to select stage II cancer patients of a high risk that can benefit from postoperative adjuvant chemotherapy...
July 19, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28753576/isoxazole-compound-ml327-blocks-myc-expression-and-tumor-formation-in-neuroblastoma
#15
Eric J Rellinger, Chandrasekhar Padmanabhan, Jingbo Qiao, Brian T Craig, Hanbing An, Jing Zhu, Hernán Correa, Alex G Waterson, Craig W Lindsley, R Daniel Beauchamp, Dai H Chung
Neuroblastomas are the most common extracranial solid tumors in children and arise from the embryonic neural crest. MYCN-amplification is a feature of ~30% of neuroblastoma tumors and portends a poor prognosis. Neural crest precursors undergo epithelial-to-mesenchymal transition (EMT) to gain migratory potential and populate the sympathoadrenal axis. Neuroblastomas are posited to arise due to a blockade of neural crest differentiation. We have recently reported effects of a novel MET inducing compound ML327 (N-(3-(2-hydroxynicotinamido) propyl)-5-phenylisoxazole-3-carboxamide) in colon cancer cells...
July 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28751379/the-interleukin-like-epithelial-mesenchymal-transition-inducer-ilei-exhibits-a-non-interleukin-like-fold-and-is-active-as-a-domain-swapped-dimer
#16
Anna M Jansson, Agnes Csiszar, Joachim Maier, Ann-Christin Nyström, Elisabeth Ax, Patrik Johansson, Lovisa Holmberg Schiavone
Production and secretion of pro-metastatic proteins is a feature of many tumor cells. The FAM3C Interleukin-like epithelial-to-mesenchymal-transition (EMT) inducer, ILEI has been shown to be strongly up-regulated in several cancers and to be essential for tumor formation and metastasis in epithelial cells, correlating with a significant decrease in overall survival in colon and breast cancer patients. ILEI has been seen to interact with the γ-secretase presenilin 1 subunit (PS1). However, not much is known about the mechanism-of-action or the detailed ILEI structure...
July 27, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28750639/epithelial-requirement-for-in-vitro-proliferation-and-xenograft-growth-and-metastasis-of-mda-mb-468-human-breast-cancer-cells-oncogenic-rather-than-tumor-suppressive-role-of-e-cadherin
#17
H J Hugo, N P A D Gunasinghe, B G Hollier, T Tanaka, T Blick, A Toh, P Hill, C Gilles, M Waltham, E W Thompson
BACKGROUND: Epithelial-to-mesenchymal transition (EMT) is associated with downregulated E-cadherin and frequently with decreased proliferation. Proliferation may be restored in secondary metastases by mesenchymal-to-epithelial transition (MET). We tested whether E-cadherin maintains epithelial proliferation in MDA-MB-468 breast cancer cells, facilitating metastatic colonization in severe combined immunodeficiency (SCID) mice. METHODS: EMT/MET markers were assessed in xenograft tumors by immunohistochemistry...
July 27, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28748258/ezh2-is-involved-in-silencing-of-wnt5a-during-epithelial-mesenchymal-transition-of-colon-cancer-cell-line
#18
Jianxin Tao, Liping Shi, Longchang Huang, Haoze Shi, Hang Chen, Yixin Wang, Tong Wang
PURPOSE: Transforming growth factor-β (TGF-β) induction of epithelial-mesenchymal transition (EMT) in SW480 was established as a system for studies of colon cancer metastasis. However, the epigenetic mechanisms underlying this process remain unknown. In mammal, polycomb repressive complex-2 (PRC2) is a highly conserved histone methyltransferase involved in epigenetic regulations. Enhancer of zeste Homolog 2 (EZH2) is the catalytic subunit of PRC2, which catalyzes methylation of lysine 27 of histone H3 (H3K27)...
July 26, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28747563/the-h3k27me3-demethylase-kdm6a-is-suppressed-in-breast-cancer-stem-like-cells-and-enables-the-resolution-of-bivalency-during-the-mesenchymal-epithelial-transition
#19
Joseph H Taube, Nathalie Sphyris, Kelsey S Johnson, Keighley N Reisenauer, Taylor A Nesbit, Robiya Joseph, Geraldine V Vijay, Tapasree R Sarkar, Neeraja A Bhangre, Joon Jin Song, Jeffrey T Chang, Min Gyu Lee, Rama Soundararajan, Sendurai A Mani
The deposition of the activating H3K4me3 and repressive H3K27me3 histone modifications within the same promoter, forming a so-called bivalent domain, maintains gene expression in a repressed but transcription-ready state. We recently reported a significantly increased incidence of bivalency following an epithelial-mesenchymal transition (EMT), a process associated with the initiation of the metastatic cascade. The reverse process, known as the mesenchymal-epithelial transition (MET), is necessary for efficient colonization...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28745318/core-3-mucin-type-o-glycan-restoration-in-colorectal-cancer-cells-promotes-muc1-p53-mir-200c-dependent-epithelial-identity
#20
J Ye, X Wei, Y Shang, Q Pan, M Yang, Y Tian, Y He, Z Peng, L Chen, W Chen, R Wang
The attachment of cell-surface carbohydrates to proteins mediated by the amino acids serine or threonine (O-glycan) is involved in tumor metastasis; the roles of O-glycans vary depending on their structure, but the detailed mechanisms by which O-glycans trigger signaling to control tumor metastasis are largely unknown. In this study, we found that the reduced expression of core 3 synthase correlated with metastasis to lymph nodes and distant organs, resulting in poor prognosis for colorectal cancer (CRC) patients...
July 24, 2017: Oncogene
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