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colon cancer, EMT

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https://www.readbyqxmd.com/read/28725241/mir-378-suppresses-the-proliferation-migration-and-invasion-of-colon-cancer-cells-by-inhibiting-sdad1
#1
Mingxi Zeng, Linlin Zhu, Liangping Li, Changming Kang
BACKGROUND: MicroRNAs (miRNAs) play important roles in the growth and metastasis of colon cancer. It is known that one set of miRNAs are dysregulated in colon cancer cells, but the mechanism of their role in cancer development is still largely unknown. Our study focuses on the role of miR-378 in colon cancer cells. METHODS: Human colon cancer tissues and adjacent non-tumor tissues were collected from patients diagnosed in pathological examinations. In addition, human colon cancer cell lines LoVo, CaCo2, SW1116, SW480 and HCT-116, and a normal colonic mucosa cell line NCM460 were included...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/28717171/the-aspirin-metabolite-salicylate-inhibits-lysine-acetyltransferases-and-muc1-induced-epithelial-to-mesenchymal-transition
#2
Harvey R Fernandez, Sara K Lindén
MUC1 is a transmembrane mucin that can promote cancer progression, and its upregulation correlates with a worse prognosis in colon cancer. We examined the effects of overexpression of MUC1 in colon cancer cells, finding that it induced epithelial to mesenchymal transition (EMT), including enhanced migration and invasion, and increased Akt phosphorylation. When the clones were treated with the aspirin metabolite salicylate, Akt phosphorylation was decreased and EMT inhibited. As the salicylate motif is necessary for the activity of the lysine acetyltransferase (KAT) inhibitor anacardic acid, we hypothesized these effects were associated with the inhibition of KAT activity...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698143/snail-transcription-factor-nls-and-importin-%C3%AE-1-regulate-the-subcellular-localization-of-cathepsin-l-and-cux1
#3
Liza J Burton, Veronica Henderson, Latiffa Liburd, Valerie A Odero-Marah
Several recent studies have highlighted an additional unexpected localization and site of action for Cathepsin L (Cat L) protease within the nucleus in breast, colon and prostate cancer, however, its role in the nucleus was unclear. It was proposed to mediate proteolytic processing of the transcription factor CCAAT-displacement protein/cut homeobox transcription factor (Cux1) from the full-length p200 isoform to generate the p110 and p90 isoforms, of which the p110 isoform was shown to act as a cell cycle regulator to accelerate entry into the S phase...
July 8, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28688953/antrodia-camphorata-inhibits-metastasis-and-epithelial-to-mesenchymal-transition-via-the-modulation-of-claudin-1-and-wnt-%C3%AE-catenin-signaling-pathways-in-human-colon-cancer-cells
#4
You-Cheng Hseu, Yu-Hsien Chao, Kai-Yuan Lin, Tzong-Der Way, Hui-Yi Lin, Varadharajan Thiyagarajan, Hsin-Ling Yang
ETHNOPHARMACOLOGICAL RELEVANCE: Antrodia camphorata (AC) is a well known traditional Chinese medicinal mushroom in Taiwan, has been used to treat various diseases including cancer. MATERIALS AND METHODS: In this study, we investigated the anti-metastatic and anti-EMT properties of a fermented culture broth of AC in human colon SW480(claudin-1-) and metastatic SW620(claudin-1+) cancer cells in vitro. RESULTS: AC down-regulates claudin-1 and inhibits the proliferation and colony-formation abilities of both SW620(claudin-1+) and SW480(claudin-1-) cells...
July 5, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28670373/zeb2-promotes-tumor-metastasis-and-correlates-with-poor-prognosis-of-human-colorectal-cancer
#5
Ming-Zhe Li, Jing-Jing Wang, Shi-Bin Yang, Wen-Feng Li, Long-Bin Xiao, Yu-Long He, Xin-Ming Song
Colorectal cancer remains the most common cause of cancer-related deaths worldwide and it continues to lack an effective treatment. Here, we found that zinc finger E-box binding homeobox 2 (ZEB2) was overexpressed in several colorectal cancer cell lines and colorectal cancer specimens relative to adjacent non-cancerous tissues. Although ZEB2 has been reported to be associated with several tumors, its involvement in colorectal cancer progression remains unclear. In this study, we investigated the biological functions and molecular mechanisms of ZEB2 underlying colorectal carcinoma metastasis and angiogenesis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28652146/downregulation-of-pkc%C3%AE-pard3-pard6b-is-responsible-for-lung-adenocarcinoma-cell-emt-and-invasion
#6
Qiyuan Zhou, Jingbo Dai, Tianji Chen, Laura A Dada, Xu Zhang, Wei Zhang, Malcolm M DeCamp, Robert A Winn, Jacob I Sznajder, Guofei Zhou
Atypical protein kinase C ζ (PKCζ) forms an apico-basal polarity complex with Partitioning Defective (Pard) 3 and Pard6 to regulate normal epithelial cell apico-basolateral polarization. The dissociation of the PKCζ/Pard3/Pard6 complex is essential for the disassembly of the tight/adherens junction and epithelial-mesenchymal transition (EMT) that is critical for tumor spreading. Loss of cell polarity and epithelial organization is strongly correlated with malignancy and tumor progression in some other cancer types...
June 24, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28649800/revisiting-epithelial-mesenchymal-transition-in-cancer-metastasis-the-connection-between-epithelial-plasticity-and-stemness
#7
REVIEW
Tsai-Tsen Liao, Muh-Hwa Yang
Epithelial-mesenchymal transition (EMT) is an important process in embryonic development, fibrosis, and cancer metastasis. During cancer progression, the activation of EMT permits cancer cells to acquire migratory, invasive, and stem-like properties. A growing body of evidence supports the critical link between EMT and cancer stemness. However, contradictory results have indicated that the inhibition of EMT also promotes cancer stemness, and that mesenchymal-epithelial transition, the reverse process of EMT, is associated with the tumor-initiating ability required for metastatic colonization...
July 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28638460/zeb1-mediates-drug-resistance-and-emt-in-p300-deficient-crc
#8
Darina Lazarova, Michael Bordonaro
We discuss the hypothesis that ZEB1-Wnt-p300 signaling integrates epithelial to mesenchymal transition (EMT) and resistance to histone deacetylase inhibitors (HDACis) in colorectal cancer (CRC) cells. The HDACi butyrate, derived from dietary fiber, has been linked to CRC prevention, and other HDACis have been proposed as therapeutic agents against CRC. We have previously discussed that resistance to butyrate likely contributes to colonic carcinogenesis, and we have demonstrated that butyrate resistance leads to cross-resistance to cancer therapeutic HDACis...
2017: Journal of Cancer
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
#9
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/28623323/rufy3-interaction-with-foxk1-promotes-invasion-and-metastasis-in-colorectal-cancer
#10
Ruyi Xie, Jing Wang, Xuehua Liu, Liqing Wu, Hui Zhang, Weimei Tang, Yueqiao Li, Li Xiang, Ying Peng, Xiaoting Huang, Yang Bai, Guangnan Liu, Aimin Li, Yadong Wang, Ye Chen, Yuexin Ren, Guoxin Li, Wei Gong, Side Liu, Jide Wang
RUFY3 is highly expressed in brain tissue and has a role in neuronal development. Transcriptional factor FOXK1 is involved in cell growth and metabolism. We knew that RUFY3 or FOXK1 has been correlated with the malignant of tumor cells. However, the role of these molecules in colorectal cancer (CRC) progression remains unknown. We investigated the protein expression levels by Western blot, immunofluorescence and immunohistochemistry analyses. The migration and invasive abilities of CRC cells were assessed using shRNA-mediated inhibition in vitro and in vivo...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28596680/role-of-axl-in-invasion-and-drug-resistance-of-colon-and-breast-cancer-cells-and-its-association-with-p53-alterations
#11
Wael M Abdel-Rahman, Noura A Al-Khayyal, Vidhya A Nair, S R Aravind, Maha Saber-Ayad
AIM: To characterize AXL receptor tyrosine kinase (AXL) expression in relationship to tumor protein P53 (TP53 gene, p53 protein) and its role in tumor invasion and response to therapy. METHODS: We used 14 cell lines, including 3 isogenic pairs carrying mutant/knockout p53, to gain insight into the relationship between AXL and TP53. These included HCT116, HCT116.p53 mutant, RKO, and RKO.p53(-/-) lines (all from colon cancers) as well as breast cancer cell lines MCF7 and 1001 (MCF7-p53 mutant clone)...
May 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28579957/the-epigenomics-of-embryonic-pathway-signaling-in-colorectal-cancer
#12
REVIEW
Curt Balch, Jayaram B Ramapuram, Amit K Tiwari
Colorectal cancer (CRC) is the second-leading cause of cancer death in developed countries. While early detection (e.g., colonoscopy) generally yields excellent outcomes, metastatic and drug-resistant disease is uniformly fatal, and non-compliance for screening remains over 25%. Familial CRCs (10% of total cases) primarily include mutations in the gene APC. Somatic disease is linked to several environmental several risk factors, including mutations in WNT, KRAS, and TGFβ. To reflect the genesis/progression of CRC, a series of five discrete stages, from normal colon mucosa to fully invasive carcinoma, each regulated by specific "gatekeeper" genes, remains well-accepted after 20 years...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28574815/prpf-overexpression-induces-drug-resistance-through-actin-cytoskeleton-rearrangement-and-epithelial-mesenchymal-transition
#13
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...
May 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28560677/mesenchymal-epithelial-transition-and-circulating-tumor-cells-in-small-cell-lung-cancer
#14
Gerhard Hamilton, Barbara Rath
Cancer patients die of metastatic disease but knowledge regarding individual steps of this complex process of intravasation, spread and extravasation leading to secondary lesions is incomplete. Subpopulations of tumor cells are supposed to undergo an epithelial-mesenchymal transition (EMT), to enter the bloodstream and eventually establish metastases in a reverse process termed mesenchymal-epithelial transition (MET). Small cell lung cancer (SCLC) represents a unique model to study metastatic spread due to early dissemination and relapse, as well as availability of a panel of circulating cancer cell (CTC) lines recently...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28558381/aldolase-b-overexpression-is-associated-with-poor-prognosis-and-promotes-tumor-progression-by-epithelial-mesenchymal-transition-in-colorectal-adenocarcinoma
#15
Qingguo Li, Yaqi Li, Junyan Xu, Sheng Wang, Ye Xu, Xinxiang Li, Sanjun Cai
BACKGROUND: Glycolysis is considered to be the root of cancer development and progression, which involved a multi-step enzymatic reaction. Our study aimed at figuring out which glycolysis enzyme participates in the development of colorectal cancer and its possible mechanisms. METHODS: We firstly screened out Aldolase B (ALDOB) by performing qRT-PCR arrays of glycolysis-related genes in five paired liver metastasis and primary colorectal tissues, and further detected ALDOB protein with immunohistochemistry in tissue microarray (TMA) consisting of 229 samples from stage I-III colorectal cancer patients...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28552992/microrna-200b-is-downregulated-in-colon-cancer-budding-cells
#16
Kirsten Nguyen Knudsen, Jan Lindebjerg, Boye Schnack Nielsen, Torben Frøstrup Hansen, Flemming Brandt Sørensen
BACKGROUND: The microRNA-200 (miR-200) family acts as a major suppressor of epithelial-mesenchymal transition (EMT). Impaired miR-200 expression may lead to EMT initiation and eventually cancer dissemination. The presence of tumor budding cells (TBC) is associated with metastasis and poor prognosis, and molecular similarities to EMT indicate that these cells may reflect ongoing EMT. The aim of this study was to investigate the expression of miR-200b in budding cells of colon cancer and the relationship with the EMT-markers E-cadherin, β-catenin and laminin-5γ2...
2017: PloS One
https://www.readbyqxmd.com/read/28552845/twist1-confers-multidrug-resistance-in-colon-cancer-through-upregulation-of-atp-binding-cassette-transporters
#17
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)...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28549790/the-inhibitor-of-differentiation-1-id1-enables-lung-cancer-liver-colonization-through-activation-of-an-emt-program-in-tumor-cells-and-establishment-of-the-pre-metastatic-niche
#18
Eduardo Castañón, Alex Soltermann, Inés López, Marta Román, Margarita Ecay, María Collantes, Miriam Redrado, Iosune Baraibar, José María López-Picazo, Christian Rolfo, Fernando Vidal-Vanaclocha, Luis Raez, Walter Weder, Alfonso Calvo, Ignacio Gil-Bazo
Id1 promotes carcinogenesis and metastasis, and predicts prognosis of non-small cell lung cancer (NSCLC)-adenocarcionoma patients. We hypothesized that Id1 may play a critical role in lung cancer colonization of the liver by affecting both tumor cells and the microenvironment. Depleted levels of Id1 in LLC (Lewis lung carcinoma cells, LLC shId1) significantly reduced cell proliferation and migration in vitro. Genetic loss of Id1 in the host tissue (Id1(-/-) mice) impaired liver colonization and increased survival of Id1(-/-) animals...
May 24, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28546516/re-evaluating-the-role-of-epithelial-mesenchymal-transition-in-cancer-progression
#19
Andrew Sulaiman, Zemin Yao, Lisheng Wang
Epithelial-mesenchymal transition (EMT) and mesenchymal-epithelial transition (MET) are essential for embryonic development and also important in cancer progression. In a conventional model, epithelial-like cancer cells transit to mesenchymal-like tumor cells with great motility via EMT transcription factors; these mesenchymal-like cells migrate through the circulation system, relocate to a suitable site and then convert back to an epithelial-like phenotype to regenerate the tumor. However, recent findings challenge this conventional model and support the existence of a stable hybrid epithelial/mesenchymal (E/M) tumor population...
April 6, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28521303/emt-circulating-tumor-cells-detected-by-cell-surface-vimentin-are-associated-with-prostate-cancer-progression
#20
Arun Satelli, Izhar Batth, Zachary Brownlee, Abhishek Mitra, Shouhao Zhou, Hyangsoon Noh, Christina R Rojas, Heming Li, Qing H Meng, Shulin Li
Recent advances in the field of circulating tumor cells (CTC) have shown promise in this liquid biopsy-based prognosis of patient outcome. However, not all of the circulating cells are tumor cells, as evidenced by a lack of tumor-specific markers. The current FDA standard for capturing CTCs (CellSearch) relies on an epithelial marker and cells captured via CellSearch cannot be considered to have undergone EMT. Therefore, it is difficult to ascertain the presence and relevance of any mesenchymal or EMT-like CTCs...
May 4, 2017: Oncotarget
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