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https://www.readbyqxmd.com/read/28642260/cigarette-smoke-disrupts-monolayer-integrity-by-altering-epithelial-cell-cell-adhesion-and-cortical-tension
#1
Kristine Nishida, Kieran A Brune, Nirupama Putcha, Pooja Mandke, Wanda K O'Neal, Danny Shade, Vasudha Srivastava, Menghen Wang, Hong Lam, Steven S An, M Bradley Drummond, Nadia N Hansel, Douglas N Robinson, Venkataramana K Sidhaye
Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality. Cigarette smoke (CS) drives disease development and progression. The epithelial barrier is damaged by CS with increased monolayer permeability. However, the molecular changes that cause this barrier disruption and the interaction between adhesion proteins and the cytoskeleton are not well defined. We hypothesized that CS alters monolayer integrity by increasing cell contractility and decreasing cell adhesion in epithelia...
June 22, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28639900/the-novel-cxcr4-antagonist-prx177561-reduces-tumor-cell-proliferation-and-accelerates-cancer-stem-cell-differentiation-in-glioblastoma-preclinical-models
#2
Giovanni Luca Gravina, Andrea Mancini, Alessandro Colapietro, Flora Vitale, Antonella Vetuschi, Simona Pompili, Giulia Rossi, Francesco Marampon, Peter J Richardson, Lee Patient, Lee Patient, Stephen Burbidge, Claudio Festuccia
Glioblastoma is the most frequent and the most lethal primary brain tumor among adults. Standard of care is the association of radiotherapy with concomitant or adjuvant temozolomide. However, to date, recurrence is inevitable. The CXCL12/CXCR4 pathway is upregulated in the glioblastoma tumor microenvironment regulating tumor cell proliferation, local invasion, angiogenesis, and the efficacy of radio-chemotherapy. In this study, we evaluated the effects of the novel CXCR4 antagonist, PRX177561, in preclinical models of glioblastoma...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28638464/overexpression-of-pak1-correlates-with-aberrant-expression-of-emt-markers-and-poor-prognosis-in-non-small-cell-lung-cancer
#3
Zhiying Yang, Heran Wang, Longzheng Xia, Linda Oyang, Yujuan Zhou, Baihua Zhang, Xiaoyan Chen, Xia Luo, Qianjin Liao, Jianping Liang
Objective: p21-activated kinases (PAKs) are serine/threonine protein kinases. PAK1 and epithelial-mesenchymal transition (EMT) are key therapeutic targets in cancer. The clinical significance of PAK1 and its potential association with EMT phenotype in non-small cell lung cancer (NSCLC) was investigated. Methods: Immunohistochemistry was used to detect the expression of PAK1, and mesenchymal and epithelial markers (vimentin, N-cadherin, and E-cadherin) in 186 cases of NSCLC tissues and 50 cases of tumor-adjacent normal tissues...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28638433/shenqiwan-ameliorates-renal-fibrosis-in-rats-by-inhibiting-tgf-%C3%AE-1-smads-signaling-pathway
#4
Hongshu Chen, Yiqing Xu, Yuanxiao Yang, Xiaojie Zhou, Shijie Dai, Changyu Li
Epithelial-mesenchymal transition (EMT) refers to the transition of epithelial cells into mesenchymal cells. Emerging evidence suggests that EMT is a key point in renal interstitial fibrosis (RIF). Traditional Chinese Medicine Shenqiwan (SQW) is widely used in clinical treatment of chronic kidney disease, but the underlying mechanism remains unclear. The purpose of this study is to investigate the effect of SQW on renal fibrosis and its association with TGF-β1/Smads signaling pathway. A rat model of adenine (150 mg/kg) was established and intragastrically treated with various concentrations of SQW at dose of 1...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28638102/mir-509-5p-and-mir-1243-increase-the-sensitivity-to-gemcitabine-by-inhibiting-epithelial-mesenchymal-transition-in-pancreatic-cancer
#5
Hidekazu Hiramoto, Tomoki Muramatsu, Daisuke Ichikawa, Kousuke Tanimoto, Satoru Yasukawa, Eigo Otsuji, Johji Inazawa
The epithelial-mesenchymal transition (EMT) contributes to various processes in cancer progression, such as metastasis and drug resistance. Since we have already established a cell-based reporter system for identifying EMT-suppressive microRNAs (miRNAs) in the pancreatic cancer cell line Panc1, we performed a function-based screening assay by combining this reporter system and a miRNA library composed of 1,090 miRNAs. As a result, we identified miR-509-5p and miR-1243 as EMT-suppressive miRNAs, although the mechanisms for EMT-suppression induced by these miRNAs have yet to be clarified...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637025/runx3-regulates-hepatocellular-carcinoma-cell-metastasis-via-targeting-mir-186-e-cadherin-emt-pathway
#6
Yuli Gou, Fangbing Zhai, Liang Zhang, Lan Cui
Runt-related transcription factor 3 (RUNX3) has been reported as a tumor suppressor in some kinds of cancers. In the present study, hepatocellular carcinoma (HCC) microarray analysis showed that RUNX3 expression was significantly lower in HCC tissues compared with that in adjacent non-tumor tissues, and was negatively associated with metastasis and TNM stage. RUNX3 was an independently prognostic factor for 5-year overall and disease-free patient survival. Mechanically, RUNX3 repressed metastasis and invasion of HCC, and increased E-cadherin expression...
June 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636767/aberrant-expression-of-kallikrein-related-peptidase-7-is-correlated-to-human-melanoma-aggressiveness-by-stimulating-cell-migration-and-invasion
#7
Tiphaine Delaunay, Lydia Deschamps, Meriem Haddada, Francine Walker, Antoninus Soosaipillai, Feryel Soualmia, Chahrazade El Amri, Eleftherios P Diamandis, Maria Brattsand, Viktor Magdolen, Dalila Darmoul
Members of the tissue kallikrein-related peptidase (KLK) family not only regulate several important physiological functions, but aberrant expression has also been associated with various malignancies. Clinically, KLKs have been suggested as promising biomarkers for diagnosis and prognosis in many types of cancer. As of yet, expression of KLKs and their role in skin cancers are, however, poorly addressed. Malignant melanoma is an aggressive disease associated with poor prognosis. Hence, diagnostic biomarkers to monitor melanoma progression are needed...
June 21, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28636748/e-cadherin-mediates-uvr-and-calcium-induced-melanin-transfer-in-human-skin-cells
#8
Suman K Singh, Richard Baker, Stephen K Sikkink, Carine Nizard, Sylvianne Schnebert, Robin Kurfurst, Desmond J Tobin
Skin pigmentation is directed by epidermal-melanin units, characterized by long-lived and dendritic epidermal melanocytes (MC) that interact with viable keratinocytes (KC) to contribute melanin to the epidermis. Previously we reported that MC:KC contact is required for melanosome transfer, that this can be enhanced by filopodial and by UVR/UVA irradiation, which can up-regulate melanosome transfer via Myosin X-mediated control of MC filopodia. Both MC and KC express Ca(2+) -dependent E-cadherins. These homophilic adhesion contacts induce transient increases in intra-KC Ca(2+) , while ultraviolet radiation (UVR) raises intra-MC Ca(2+) via calcium selective ORAI1 ion channels; both are associated with regulating melanogenesis...
June 21, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28636556/long-non-coding-rna-ube2cp3-promotes-tumor-metastasis-by-inducing-epithelial-mesenchymal-transition-in-hepatocellular-carcinoma
#9
Shun-Wang Cao, Jin-Lan Huang, Jing Chen, Yan-Wei Hu, Xiu-Mei Hu, Ting-Yu Ren, Shi-Hao Zheng, Jin-Duan Lin, Jing Tang, Lei Zheng, Qian Wang
Hepatocellular carcinoma (HCC) is a highly aggressive, solid malignancy that has a poor prognosis. Long non-coding RNAs (lncRNAs) have been found to be dysregulated in various cancers, including HCC. However, the molecular mechanism involving lncRNAs in HCC remains largely unknown. In this study, lncRNAs differentially expressed between HCC and corresponding non-cancerous tissue were identified by microarray analysis. A specific differentially expressed lncRNA UBE2CP3 (ubiquitin conjugating enzyme E2 C pseudogene 3) was identified...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28631573/effects-of-mir-1236-3p-and-mir-370-5p-on-activation-of-p21-in-various-tumors-and-its-inhibition-on-the-growth-of-lung-cancer-cells
#10
Chuanchang Li, Qiangqiang Ge, Jiaxuan Liu, Qingsong Zhang, Chenghe Wang, Kai Cui, Zhong Chen
The mechanism of dsRNA-induced gene activation (RNAa) is being gradually unveiled. The plentiful evidence that it existed in mammalian species other than human demonstrated that dsRNA-mediated RNAa is a conservative phenomenon. Simultaneously, accumulating evidence suggested that microRNAs could activate gene expression by targeting promoter. Nevertheless, it is ambiguous whether microRNA-induced gene activation in different human cells is a common phenomenon. The study we performed verified that miR-1236-3p (miR-1236) and miR-370-5p can activate p21 expression in bladder cancer (BCa) T24, EJ cells, and non-small-cell lung carcinoma A549 cells, while in hepatocellular HepG2 cells both microRNAs cannot effectively induce the expression of P21(WAF1/CIP1) (p21)...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28631571/a-truncated-p53-in-human-lung-cancer-cells-as-a-critical-determinant-of-proliferation-and-invasiveness
#11
Weiying Li, Baitang Lai, Xuehui Yang, Chunyan Zhang, Hui Wang
As a transcription factor, p53 must accumulate in the nucleus to be effective. Signals related to nuclear localization are distributed mainly in the C-terminal of p53. So these nuclear location domains were reserved and the other part of the C-terminal was removed in this study. We investigated whether the truncated p53 (p53(DEL)) may affect proliferation and invasive potential of human lung cancer cells. H1299 and 801D cells expressing full-length p53 and the p53(DEL) were obtained by screening. Cell proliferation assay, cell apoptotic analysis, cell migration assay, and invasion assay were performed...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28631286/knockdown-of-mediator-subunit-med19-suppresses-bladder-cancer-cell-proliferation-and-migration-by-downregulating-wnt-%C3%AE-catenin-signalling-pathway
#12
Hejia Yuan, Shengqiang Yu, Yuanshan Cui, Changping Men, Diandong Yang, Zhenli Gao, Zhe Zhu, Jitao Wu
Mediator complex subunit 19 (Med19), a RNA polymerase II-embedded coactivator, is reported to be involved in bladder cancer (BCa) progression, but its functional contribution to this process is poorly understood. Here, we investigate the effects of Med19 on malignant behaviours of BCa, as well as to elucidate the possible mechanisms. Med19 expression in 15 BCa tissues was significantly higher than adjacent paired normal tissues using real-time PCR and Western blot analysis. Immunohistochemical staining of 167 paraffin-embedded BCa tissues was performed, and the results showed that high Med19 protein level was positively correlated with clinical stages and histopathological grade...
June 19, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28629532/hypaconitine-inhibits-tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition-and-suppresses-adhesion-migration-and-invasion-of-lung-cancer-a549-cells
#13
Hai-Tao Feng, Wen-Wen Zhao, Jin-Jian Lu, Yi-Tao Wang, Xiu-Ping Chen
Epithelial-mesenchymal transition (EMT) has been implicated in tumor invasion and metastasis and provides novel strategies for cancer therapy. Hypaconitine (HpA), a diester-diterpenoid alkaloid isolated from the root of the Aconitum species, exhibits anti-inflammatory, analgesic, and especially, cardiotoxic activities. Here, we reported the anti-metastatic potentials of HpA in transforming growth factor-β1 (TGF-β1)-induced EMT in lung cancer A549 cells. The cytotoxic effect of HpA was determined by MTT assay...
June 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28628833/urtica-dioica-extract-suppresses-mir-21-and-metastasis-related-genes-in-breast-cancer
#14
Behzad Mansoori, Ali Mohammadi, Shahriar Hashemzadeh, Solmaz Shirjang, Ali Baradaran, Milad Asadi, Mohammad Amin Doustvandi, Behzad Baradaran
BACKGROUND: Breast cancer has a high prevalence among women worldwide. Tumor invasion and metastasis still remains an open issue that causes most of the therapeutic failures and remains the prime cause of patient mortality. Hence, there is an unmet need to develop the most effective therapeutic approach with the lowest side effects and highest cytotoxicity that will effectively arrest or eradicate metastasis. METHODS: An MTT assay and scratch test were used to assess the cytotoxicity and migration effects of Urtica dioica on the breast cancer cells...
June 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28628116/cadherin-composition-and-multicellular-aggregate-invasion-in-organotypic-models-of-epithelial-ovarian-cancer-intraperitoneal-metastasis
#15
Y Klymenko, O Kim, E Loughran, J Yang, R Lombard, M Alber, M S Stack
During epithelial ovarian cancer (EOC) progression, intraperitoneally disseminating tumor cells and multicellular aggregates (MCAs) present in ascites fluid adhere to the peritoneum and induce retraction of the peritoneal mesothelial monolayer prior to invasion of the collagen-rich submesothelial matrix and proliferation into macro-metastases. Clinical studies have shown heterogeneity among EOC metastatic units with respect to cadherin expression profiles and invasive behavior; however, the impact of distinct cadherin profiles on peritoneal anchoring of metastatic lesions remains poorly understood...
June 19, 2017: Oncogene
https://www.readbyqxmd.com/read/28627627/stromal-antigen-2-functions-as-a-tumor-suppressor-in-bladder-cancer-cells
#16
Han Wang, Jianhua Zhong, Chenglong Wu, Yang Liu, Jinghua Zhang, Xiaowen Zou, Yan Chen, Jinfeng Su, Gang Yang, Yuantang Zhong, Aifa Tang
Stromal antigen 2 (STAG2) is a subunit of the cohesion complex that plays an important role in the normal segregation of sister chromatids during mitosis or meiosis. However, the effect of STAG2 on the bladder cancer cell proliferation, migration, and invasion has not yet been fully clarified. In this study, we aimed to characterize STAG2 expression and functional significance in BC and adjacent normal tissue. Notably, STAG2 expression was markedly lower in BC cells and tumor tissues than their normal counterparts at the gene and protein levels...
June 12, 2017: Oncology Reports
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
#17
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/28626343/anti-osm-antibody-inhibits-tubulointerstitial-lesion-in-a-murine-model-of-lupus-nephritis
#18
Qingjuan Liu, Yunxia Du, Kejun Li, Wei Zhang, Xiaojuan Feng, Jun Hao, Hongbo Li, Shuxia Liu
The purpose of this study was to investigate the role of oncostatin M (OSM) in tubulointerstitial lesion (TIL) in lupus nephritis (LN). We found that OSM was highly expressed in the renal tissue of LN mice. OSM is one of the interleukin-6 cytokine family members. In order to clarify the role and mechanism of OSM in LN, mice with LN were treated with anti-OSM antibody or isotype antibody. We evaluated the tubular epithelial-mesenchymal transdifferentiation (EMT) by detecting the E-cadherin, α-smooth muscle actin (α-SMA), and fibronectin (FN) expression...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28625518/histone-chaperone-asf1a-predicts-poor-outcomes-for-patients-with-gastrointestinal-cancer-and-drives-cancer-progression-by-stimulating-transcription-of-%C3%AE-catenin-target-genes
#19
Xiuming Liang, Xiaotian Yuan, Jingya Yu, Yujiao Wu, Kailin Li, Chao Sun, Shuyan Li, Li Shen, Feng Kong, Jihui Jia, Magnus Björkholm, Dawei Xu
Epigenetic mechanisms play a key role in gastrointestinal cancer (GIC) development and progression, and most studies have been focused on aberrant DNA methylation and histone modifying enzymes. However, the histone H3-H4 chaperone ASF1A is an important factor regulating chromatin assembling and gene transcription, while it is currently unclear whether ASF1A is involved in cancer pathogenesis. The present study is thus designed to address this issue. Here we showed that ASF1A expression was widespread in GIC-derived cell lines and up-regulated in primary GIC...
June 8, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28625360/hypoxia-primed-placental-mesenchymal-stem-cells-for-wound-healing
#20
Suja Ann Mathew, Bhawna Chandravanshi, Ramesh Bhonde
AIMS: To investigate how Placental Mesenchymal Stem Cells (P-MSCs) would adapt themselves and survive under hypoxic conditions which are prevalent in most injury sites. MAIN METHODS: P-MSCs were isolated from term placenta and characterised under normoxia and hypoxia (2-2.5% O2). Cells were examined for morphology and surface marker variations by flow cytometry analysis. Glucose stimulated insulin secretion was assayed by Insulin ELISA Kit. Gene expression levels were estimated using Real Time PCR for hypoxia inducible factor1 alpha, Insulin (INS), Glucose transporters (GLUT-1, GLUT-2 and GLUT-3), Adhesion Proteins- Integrins, Fibronectin1 (FN1), E-Cadherin (CDH1), and N-Cadherin (CDH2) and angiogenesis marker VEGFA...
June 15, 2017: Life Sciences
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