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colon cancer, EMT

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https://www.readbyqxmd.com/read/29329034/long-non-coding-rna-ccat2-promotes-cholangiocarcinoma-cells-migration-and-invasion-by-induction-of-epithelial-to-mesenchymal-transition
#1
Yi Xu, Yue Yao, Wei Qin, Xiangyu Zhong, Xingming Jiang, Yunfu Cui
Cholangiocarcinoma (CCA) is one of the most aggressive malignancies in humans. Emerging evidence has indicated that abnormally expressed long non-coding RNAs (lncRNAs) could conduce to tumorigenesis and progression. Specifically, colon cancer-associated transcript 2 (CCAT2) has been reported to be overexpressed in several carcinomas. However, its clinical significance and functional roles in CCA is still unknown. qRT-PCR experiments were conducted to assess the CCAT2 expression in CCA tissue samples and cell lines...
January 9, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29325758/mir-186-5p-upregulation-inhibits-proliferation-metastasis-and-epithelial-to-mesenchymal-transition-of-colorectal-cancer-cell-by-targeting-zeb1
#2
Jinlei Li, Limin Xia, Zhenhua Zhou, Zhigui Zuo, Chang Xu, Huayu Song, Jianhui Cai
MicroRNA-186-5p (miR-186-5p) is upregulated and exhibits as a crucial oncogene in various human tumors. However, the functions and underlying mechanisms of this microRNA on colorectal cancer remain largely unknown. Here, we report that miR-186-5p share a lower expression in colorectal cancer cell lines (HT116, H29, SW620 and LoVo) than in normal colonic epithelial cell line NCM460. MiR-186-5p overexpression inhibits proliferation, metastasis and epithelial-to-mesenchymal transition (EMT) of colorectal cancer cell line LoVo...
January 8, 2018: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29301594/emodin-inhibits-colon-cancer-cell-invasion-and-migration-by-suppressing-epithelialmesenchymal-transition-via-the-wnt-%C3%AE-catenin-pathway
#3
Juan Gu, Chang-Fu Cui, Li Yang, Ling Wang, Xue-Hua Jiang
Colon cancer (CC) is the third most common cancer worldwide. Emodin is a kind of anthraquinone active substance which has the ability to affect tumor progression. Our study aims to explore the effects and the relevant mechanism of Emodin on the invasion and migration of CC in vitro and in vivo. In our study, we found that Emodin inhibited the invasion and migration ability of RKO cells and decreased the expression of Matrix metalloproteinase-7 (MMP-7), Matrix metalloproteinase-9 (MMP-9), and Vascular endothelial growth factor (VEGF) in a dose dependent manner...
January 4, 2018: Oncology Research
https://www.readbyqxmd.com/read/29285087/scutellaria-barbata-d-don-inhibits-migration-and-invasion-of-colorectal-cancer-cells-via-suppression-of-pi3k-akt-and-tgf-%C3%AE-smad-signaling-pathways
#4
Yiyi Jin, Wujin Chen, Hong Yang, Zhaokun Yan, Zijun Lai, Jianyu Feng, Jun Peng, Jiumao Lin
Metastasis is one of the most aberrant behaviors of cancer cells. Patients with cancers, including colorectal cancer (CRC), have a higher risk of tumor recurrence and cancer-related mortality once metastasis is diagnosed. Existing treatment strategies fail to cure cancer mostly due to the onset of metastasis. Therefore, metastasis remains a challenge in cancer treatment. Some complementary and alternative medical therapies using traditional Chinese medicine have been demonstrated to be clinically effective in cancer treatment...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29227545/overexpression-of-sirt6-is-a-novel-biomarker-of-malignant-human-colon-carcinoma
#5
Chang-Hui Geng, Chun-Ling Zhang, Jing-Yan Zhang, Ping Gao, Miao He, Yan-Lin Li
Sirt family has been reported playing a significant role in the cancer develop, special its deacetylase activity plays a key function, but whether SIRT6 plays a role in mediating tumor EMT and metastasis in colon cancer has not been explored. Here, the mass spectrometry and co-immunoprecipitation assays were utilized to detect that SIRT6 was physically associated with transcription factor snail. Most important, HCT116 cells transfected with SIRT6 shRNA reversed EMT, while increased the expression of TET1, and the HCT116 cells transfected with SIRT6 displayed the contrary tendency...
December 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29218075/il-32%C3%AE-a-recently-identified-anti-inflammatory-variant-of-il-32-and-its-preventive-role-in-various-disorders-and-tumor-suppressor-activity
#6
REVIEW
Muhammad Babar Khawar, Maryam Mukhtar, Muddasir Hassan Abbasi, Nadeem Sheikh
Interleukin-32 theta (IL-32θ) is newly identified isoform of IL-32 which plays a vital role in inflammatory responses. Like IL-32α and IL-32β, IL-32θ isoform acts as an intracellular inflammatory modulator. It results in reduction of IL-1β production by attenuating the expression of PU.1 and inhibition of monocytes differentiation into macrophages. IL-32θ hinders TNF-α expression by inhibiting p38 MAPK and inhibitor of κB (IκB) as well. It also reserved STAT3-ZEB1 pathway leading to the inhibition of epithelial-mesenchymal transition (EMT) and stemness...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29216625/missing-links-in-epithelial-mesenchymal-transition-long-non-coding-rnas-enter-the-arena
#7
Lei Wang, Fan Yang, Lin-Tao Jia, An-Gang Yang
Cancer metastasis occurs through a series of sequential steps, which involves dissemination of tumor cells from a primary site and colonization in distant tissues. To promote the invasion-metastasis cascade, carcinoma cells usually initiate a cell-biological program called epithelial-mesenchymal transition (EMT), which is orchestrated by a set of master regulators, including TGF-β, Snail, ZEB and Twist families. The biological activities of these molecules are tightly regulated by a variety of cell-intrinsic pathways as well as extracellular cues...
December 6, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29215713/nicotine-increases-colon-cancer-cell-migration-and-invasion-through-epithelial-to-mesenchymal-transition-emt-cox-2-involvement
#8
Simona Dinicola, Maria Grazia Masiello, Sara Proietti, Pierpaolo Coluccia, Gianmarco Fabrizi, Angela Catizone, Giulia Ricci, Giorgio De Toma, Mariano Bizzarri, Alessandra Cucina
Cigarette smoking is a recognized risk factor for colon cancer and nicotine, the principal active component of tobacco, plays a pivotal role in increasing colon cancer cell growth and survival. The aim of this study was to determine the effect of nicotine on cellular Caco-2 and HCT-8 migration and invasion, focusing on epithelial to mesenchymal transition (EMT) induction and COX-2 pathway involvement. In both these cell lines, treatment with nicotine increased COX-2 expression and the release of its enzymatic product PGE2 ...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29207623/isoxazole-compound-ml327-blocks-myc-expression-and-tumor-formation-in-neuroblastoma
#9
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...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29202800/genistein-induces-apoptosis-of-colon-cancer-cells-by-reversal-of-epithelial-to-mesenchymal-via-a-notch1-nf-%C3%AE%C2%BAb-slug-e-cadherin-pathway
#10
Panpan Zhou, Chunling Wang, Zebin Hu, Wenruo Chen, Wentao Qi, Aike Li
BACKGROUND: Genistein has been known to inhibit proliferation and induce apoptosis in several kinds of cancer cells. While knowledge of genistein in regulating epithelial mesenchymal transition (EMT) of colon cancer cells is unknown. METHODS: To investigate the effects and mechanisms of genistein on EMT of colon cancer cells, HT-29 cells were used and treated by genistein and TNF-α in this paper. EMT was determined by cell invasion assays using a transwell chamber and the expression changes of EMT-related markers were confirmed by RT-PCR, Western blotting, and immunofluorescence staining...
December 4, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29201236/the-role-of-aplysia-ras-homolog-i-in-colon-cancer-cell-invasion-and-adhesion
#11
Jun Ouyang, Xiaohui Pan, Zecheng Hu
Aplysia ras homolog I (ARHI) acts as a tumor suppressor in certain cancer cells. However, the role of ARHI in colon cancer development has not previously been reported. The present study aimed to investigate the functional role of ARHI in colon cancer focusing on the aspect of metastasis. Furthermore, the molecular mechanism underlying its function was explored. The present study detected the expression of ARHI in a human colon epithelial cell line and colon cancer cell lines using reverse transcription-quantitative polymerase chain reaction and western blotting analysis...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29180466/synthetic-lethality-of-parp-inhibitors-in-combination-with-myc-blockade-is-independent-of-brca-status-in-triple-negative-breast-cancer
#12
Jason Pw Carey, Cansu Karakas, Tuyen Bui, Xian Chen, Smruthi Vijayaraghavan, Yang Zhao, Jing Wang, Keith Mikule, Jennifer K Litton, Kelly K Hunt, Khandan Keyomarsi
PARP inhibitors (PARPi) benefit only a fraction of breast cancer patients. Several of those patients exhibit intrinsic/acquired resistance mechanisms that limit efficacy of PARPi monotherapy. Here we show how the efficacy of PARPi in triple-negative breast cancers (TNBC) can be expanded by targeting MYC-induced oncogenic addiction. In BRCA-mutant/sporadic TNBC patients, amplification of the MYC gene is correlated with increased expression of the homologous DNA recombination enzyme RAD51 and tumors overexpressing both genes are associated with worse overall survival...
November 27, 2017: Cancer Research
https://www.readbyqxmd.com/read/29163688/foxm1-is-associated-with-metastasis-in-colorectal-cancer-through-induction-of-the-epithelial-mesenchymal-transition
#13
Bao-Ying Fei, Xujun He, Jie Ma, Mei Zhang, Rui Chai
The aim of the present study was to investigate the role of forkhead box M1 (FoxM1) in epithelial-mesenchymal transition (EMT) and metastasis in colorectal cancer (CRC). Immunohistochemical assays were performed to detect FoxM1 and epithelial (E-) cadherin protein expression in 92 CRC, 61 colonic adenoma and 32 wild-type colonic tissue samples. Quantitative polymerase chain reaction (qPCR) assays were performed to determine the expression levels of FoxM1 and E-cadherin mRNAs in 30 CRC and adjacent normal mucosal tissues...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29158781/hypothalamic-beta-endorphin-neurons-suppress-preneoplastic-and-neoplastic-lesions-development-in-1-2-dimethylhydrazine-induced-rat-colon-cancer-model
#14
Sengottuvelan Murugan, Yatee Dave, Ankush Rakhit, Dipak K Sarkar
In recent years, experimental studies demonstrated negative impacts of impaired body stress response on colonic pathologies. In this study, we tested if reducing body stress response by the use of β-endorphin (BEP) neuronal transplants in the hypothalamus suppresses pre-neoplastic and neoplastic lesions. Colon cancer was induced by injecting 1,2-dimethylhydrazine (DMH) for sixteen weeks in Sprague Dawley rats with BEP neuron transplants or control neuron transplants, and their colonic histopathologies, colon tissue levels of pro-inflammatory cytokines and epithelial-mesenchymal transition (EMT) proteins and splenic levels of cytotoxic proteins were measured...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29156750/somatic-mutations-in-cdh1-and-ctnnb1-in-primary-carcinomas-at-13-anatomic-sites
#15
Evan L Busch, Jason L Hornick, Renato Umeton, Adem Albayrak, Neal I Lindeman, Laura E MacConaill, Elizabeth P Garcia, Matthew Ducar, Timothy R Rebbeck
Metastases are involved in most cancer deaths. Evidence has suggested that cancer cell detachment from primary tumors might occur largely via the mechanism of epithelial-mesenchymal transition (EMT) activated by epigenetic events, but data addressing other possible triggers of detachment, particularly genetic mutations, have been limited. Using the Profile study of cancer genomics at Dana-Farber Cancer Institute, we examined somatic mutations in the EMT genes CDH1 in 5,106 primary carcinomas and CTNNB1 in 7,578 primary carcinomas across 13 anatomic sites: urinary bladder, breast, colon/rectum, endometrium, esophagus, kidney, lung, ovary, pancreas, prostate, skin (non-melanoma), stomach, and thyroid...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29155818/snail1-mediated-downregulation-of-foxa-proteins-facilitates-the-inactivation-of-transcriptional-enhancer-elements-at-key-epithelial-genes-in-colorectal-cancer-cells
#16
Sabine Jägle, Hauke Busch, Vivien Freihen, Sven Beyes, Monika Schrempp, Melanie Boerries, Andreas Hecht
Phenotypic conversion of tumor cells through epithelial-mesenchymal transition (EMT) requires massive gene expression changes. How these are brought about is not clear. Here we examined the impact of the EMT master regulator SNAIL1 on the FOXA family of transcription factors which are distinguished by their particular competence to induce chromatin reorganization for the activation of transcriptional enhancer elements. We show that the expression of SNAIL1 and FOXA genes is anticorrelated in transcriptomes of colorectal tumors and cell lines...
November 20, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29151941/zeb1-promotes-oxaliplatin-resistance-through-the-induction-of-epithelial-mesenchymal-transition-in-colon-cancer-cells
#17
Cao Guo, Junli Ma, Ganlu Deng, Yanlin Qu, Ling Yin, Yiyi Li, Ying Han, Changjing Cai, Hong Shen, Shan Zeng
Background: Oxaliplatin (OXA) chemotherapy is widely used in the clinical treatment of colon cancer. However, chemo-resistance is still a barrier to effective chemotherapy in cases of colon cancer. Accumulated evidence suggests that the epithelial mesenchymal transition (EMT) may be a critical factor in chemo-sensitivity. The present study investigated the effects of Zinc finger E-box binding homeobox 1 (ZEB1) on OXA-sensitivity in colon cancer cells. Method: ZEB1expression and its correlation with clinicopathological characteristics were analyzed using tumor tissue from an independent cohort consisting of 118 colon cancer (CC) patients who receiving OXA-based chemotherapy...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29145973/tak-ing-aim-at-chemoresistance-the-emerging-role-of-map3k7-as-a-target-for-cancer-therapy
#18
Raffaela Santoro, Carmine Carbone, Geny Piro, Paul J Chiao, Davide Melisi
Cellular drug resistance remains the main obstacle to the clinical efficacy of cancer chemotherapy. Alterations in key pathways regulating cell cycle checkpoints, apoptosis and Epithelial to Mesenchymal Transition (EMT), such as the Mitogen-activated protein kinase (MAPK) pathway, appear to be closely associated to cancer chemoresistance. Transforming growth factor-β (TGF-β)- activated kinase 1 (TAK1, also known as MAP3K7) is a serine/threonine kinase in the mitogen-activated protein kinase (MAP3K) family...
November 2017: Drug Resistance Updates: Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
https://www.readbyqxmd.com/read/29138850/role-of-mitochondrial-function-in-the-invasiveness-of-human-colon-cancer-cells
#19
Chen-Sung Lin, Li-Tzu Liu, Liang-Hung Ou, Siao-Cian Pan, Chia-I Lin, Yau-Huei Wei
We investigated the role of mitochondrial function in the invasiveness of human colorectal cancer (CRC) cell lines, using paired primary SW480 and metastatic SW620 cells, and appraised the clinical relevance of the alteration of mtDNA copy number in 33 pairs of CRC specimens after surgical resection. Suppression of mitochondrial function was achieved by the exposure of cells to oligomycin A (OA) or by knockdown of mitochondrial transcriptional factor A (TFAM) to evaluate their effects on energy metabolism, reactive oxygen species, protein expression levels of epithelial-mesenchymal transition (EMT) markers and invasive activity of CRC cells...
November 9, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29137281/hic-5-regulates-epithelial-to-mesenchymal-transition-in-ovarian-cancer-cells-in-a-tgf%C3%AE-1-independent-manner
#20
Razan Sheta, Zhi-Qiang Wang, Magdalena Bachvarova, Marie Plante, Jean Gregoire, Marie-Claude Renaud, Alexandra Sebastianelli, Stephane Gobeil, Chantale Morin, Elizabeth Macdonald, Barbara Vanderhyden, Dimcho Bachvarov
The molecular basis of epithelial ovarian cancer (EOC) dissemination is still poorly understood. We have previously identified the hydrogen peroxide-inducible clone-5 (Hic-5) gene as hypomethylated in high-grade (HG) serous EOC tumors, compared to normal ovarian tissues. Hic-5 is a focal adhesion scaffold protein and has been primarily studied for its role as a key mediator of TGF-β-induced epithelial-to-mesenchymal transition (EMT) in epithelial cells of both normal and malignant origin; however, its role in EOC has been never investigated...
October 10, 2017: Oncotarget
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