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https://www.readbyqxmd.com/read/28733557/down-regulation-of-lincrna-p21-contributes-to-gastric-cancer-development-through-hippo-independent-activation-of-yap
#1
Ying Chen, Guoqing Wei, Hongwei Xia, Huangfei Yu, Qiuling Tang, Feng Bi
Long intergenic non-coding RNA p21 (lincRNA-p21), known as the direct transcriptional target of p53, was found down-regulated in several human solid tumors. However, little is known about the role of lincRNA-p21 in gastric cancer. The expression levels of lincRNA-p21 in tissue samples and cell lines were detected by qRT-PCR. MGC-803 and MKN-45 cells were transfected with siRNAs targeting lincRNA-p21 or control siRNAs to determine the effect of reduced lincRNA-p21 expression on tumorigenesis. We also overexpressed lincRNA-p21 in MGC-803 cells...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28729401/jak1-stat3-activation-through-a-proinflammatory-cytokine-pathway-leads-to-resistance-to-molecularly-targeted-therapy-in-non-small-cell-lung-cancer
#2
Kazuhiko Shien, Vassiliki A Papadimitrakopoulou, Dennis Ruder, Carmen Behrens, Li Shen, Neda Kalhor, Juhee Song, J Jack Lee, Jing Wang, Ximing Tang, Roy S Herbst, Shinichi Toyooka, Luc Girard, John D Minna, Jonathan M Kurie, Ignacio I Wistuba, Julie G Izzo
Molecularly targeted drugs have yielded significant therapeutic advances in oncogene-driven non-small cell lung cancer (NSCLC), but a majority of patients eventually develop acquired resistance. Recently, the relation between proinflammatory cytokine interleukin-6 (IL6) and resistance to targeted drugs has been reported. We investigated the functional contribution of IL6 and the other members of IL6 family proinflammatory cytokine pathway to resistance to targeted drugs in NSCLC cells. In addition, we examined the production of these cytokines by cancer cells and cancer-associated fibroblasts (CAFs)...
July 20, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28725489/bmp-2-induces-emt-and-breast-cancer-stemness-through-rb-and-cd44
#3
Peide Huang, Anan Chen, Weiyi He, Zhen Li, Guanglin Zhang, Zhong Liu, Ge Liu, Xueting Liu, Shuilian He, Gang Xiao, Feicheng Huang, Jan Stenvang, Nils Brünner, An Hong, Ju Wang
Bone morphogenetic protein 2 (BMP-2) has been reported to facilitate epithelial-to-mesenchymal transition (EMT) and bone metastasis in breast cancer xenograft models. To investigate the role of BMP-2 in the development of breast cancer stem cells (BCSCs), and to further elucidate the mechanisms underlying its influence on breast cancer metastasis, we conducted a comprehensive molecular study using breast cancer cell lines and clinical samples. Our results showed that downregulation of Rb by BMP-2 was associated with ubiquitin-mediated degradation activated by phosphorylation of Rb via the PI3K/AKT signal pathway...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28723640/trim22-confers-poor-prognosis-and-promotes-epithelial-mesenchymal-transition-through-regulation-of-akt-gsk3%C3%AE-%C3%AE-catenin-signaling-in-non-small-cell-lung-cancer
#4
Li Liu, Xiao-Ming Zhou, Fang-Fei Yang, Yuan Miao, Yan Yin, Xue-Jun Hu, Gang Hou, Qiu-Yue Wang, Jian Kang
Expression pattern and biological roles of TRIM22 remains unknown in most human cancers. The present study aims to discover its clinical significance and function in human non-small cell lung cancer (NSCLC). Immunohistochemistry was used to examine TRIM22 expression in 126 cases of NSCLC specimens. TRIM22 protein was upregulated in 70/126 (55.6%) non-small cell lung cancer tissues compared with normal lung tissue. TRIM22 overexpression was associated with advanced TNM stage, positive nodal metastasis and poor prognosis...
July 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722327/transforming-growth-factor-beta-matrix-metalloproteinases-and-urokinase-type-plasminogen-activator-interaction-in-the-cancer-epithelial-to-mesenchymal-transition
#5
REVIEW
Juan F Santibanez, Hristina Obradović, Tamara Kukolj, Jelena Krstić
Transforming growth factor beta (TGF-β) is a pleiotropic factor that acts as a tumor suppressor in the early stages, while it exerts tumor promoting activities in advanced stages of cancer development. One of the hallmarks of cancer progression is the capacity of cancer cells to migrate and invade surrounding tissues with subsequent metastasis to different organs. Matrix metalloproteinases (MMPs) together with urokinase-type plasminogen activator (uPA) and its receptor (uPAR), whose main original function described is the proteolytic degradation of the extracellular matrix, play key cellular roles in the enhancement of cell malignancy during cancer progression...
July 19, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28719220/egfr-targeted-cationic-polymeric-mixed-micelles-for-co-delivery-of-gemcitabine-and-mir-205-for-treating-advanced-pancreatic-cancer
#6
Goutam Mondal, Saud Almawash, Amit Kumar Chaudhary, Ram I Mahato
Gemcitabine (GEM), a first-line chemotherapy for pancreatic cancer undergoes rapid metabolism and develops chemoresistance after repeated administration. We previously demonstrated that the combination of GEM and miR-205 provides an effective therapeutic strategy to sensitize GEM-resistant pancreatic cancer cells. Since epidermal growth factor receptor (EGFR) is overexpressed in pancreatic cancer cells, in this study, we aimed to deliver mixed micelles containing GEM and miR-205 decorated with EGFR-targeting cetuximab (C225) monoclonal antibody for targeted therapy...
July 18, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28713929/microrna-379-inhibits-metastasis-and-epithelial-mesenchymal-transition-via-targeting-fak-akt-signaling-in-gastric-cancer
#7
Meizhong Xu, Shui Qin, Fan Cao, Shi Ding, Mengnan Li
Accumulating evidence demonstrates that aberrant miRNAs contribute to gastric cancer (GC) development and progression. However, the roles of various miRNAs in GC remain to be determined. In the present study, we confirmed that a reduced miR-379 expression was present in GC tissues and cell lines. Our clinical analysis revealed that the downregulated miR-379 expression was significantly correlated with poor prognostic features including lymph node metastasis and advanced TNM stage. Moreover, we confirmed that miR-379 was a novel independent prognostic marker for predicting 5-year survival of GC patients...
July 12, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28708138/blocking-endothelin-1-receptor-%C3%AE-catenin-circuit-sensitizes-to-chemotherapy-in-colorectal-cancer
#8
Roberta Cianfrocca, Laura Rosanò, Piera Tocci, Rosanna Sestito, Valentina Caprara, Valeriana Di Castro, Ruggero De Maria, Anna Bagnato
The limited clinical response to conventional chemotherapeutics observed in colorectal cancer (CRC) may be related to the connections between the hyperactivated β-catenin signaling and other pathways in CRC stem-like cells (CRC-SC). Here, we show the mechanistic link between the endothelin-1 (ET-1)/ET-1 receptor (ET-1R) signaling and β-catenin pathway through the specific interaction with the signal transducer β-arrestin1 (β-arr1), which initiates signaling cascades as part of the signaling complex. Using a panel of patient-derived CRC-SC, we show that these cells secrete ET-1 and express ETAR and β-arr1, and that the activation of ETAR/β-arr1 axis promotes the cross-talk with β-catenin signaling to sustain stemness, epithelial-to-mesenchymal transition (EMT) phenotype and response to chemotherapy...
July 14, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28697764/long-non-coding-rna-linc00673-regulated-non-small-cell-lung-cancer-proliferation-migration-invasion-and-epithelial-mesenchymal-transition-by-sponging-mir-150-5p
#9
Wei Lu, Honghe Zhang, Yuequn Niu, Yongfeng Wu, Wenjie Sun, Hongyi Li, Jianlu Kong, Kefeng Ding, Han-Ming Shen, Han Wu, Dajing Xia, Yihua Wu
BACKGROUND: The function of a new long non-coding RNA linc00673 remains unclear. While identified as an oncogenic player in non-small cell lung cancer (NSCLC), linc00673 was found to be anti-oncogenic in pancreatic ductal adenocarcinoma (PDAC). However whether linc00673 regulated malignancy and epithelial mesenchymal transition (EMT) has not been characterized. METHODS: Cell proliferation was assessed using CCK-8 and EdU assays, and cell migration and invasion were assessed using scratch assays and transwell invasion assays...
July 11, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28695816/research-advances-in-the-role-of-bromodomain-containing-protein-4-in-epithelial-mesenchymal-transition-in-asthma
#10
Yan Zheng, Jun Wang, Qiugen Li
Asthma is a chronic airway disease characterized by airway inflammation and airway remodeling. Chronic airway inflammation can be involved in airway remodeling in asthmatic patients by incuding epithelial-mesenchymal transition (EMT).Bromodomain-containing protein 4 (BRD4) is a key transcriptional regulator in mammals,and many evidences have shown that BRD4 plays a pivotal role in airway remodeling via nuclear factor-κB/RelA signaling pathway. This review summarizes the recent advances in the role of BRD4 in regulating EMT,with an attempt to elucidate the molecular mechanisms of asthma and inform the prevention and control of asthma...
June 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28692046/inhibition-of-the-androgen-receptor-induces-a-novel-tumor-promoter-zbtb46-for-prostate-cancer-metastasis
#11
W-Y Chen, Y-C Tsai, M K Siu, H-L Yeh, C-L Chen, J J Yin, J Huang, Y-N Liu
Current therapeutic regimens for prostate cancer focus on targeting androgen receptor (AR) signaling. However, the AR is a key factor in luminal epithelium differentiation and was shown to have a role as a tumor suppressor. Thus, its inhibition may activate oncogenic pathways that contribute to metastatic castration-resistant prostate cancer (CRPC). Herein, we report a novel tumor promoter, ZBTB46, which is negatively regulated by AR signaling via microRNA (miR)-1-mediated downregulation. ZBTB46 is associated with malignant prostate cancer and is essential for metastasis...
July 10, 2017: Oncogene
https://www.readbyqxmd.com/read/28683467/rbm38-is-involved-in-tgf-%C3%AE-induced-epithelial-to-mesenchymal-transition-by-stabilising-zonula-occludens-1-mrna-in-breast-cancer
#12
Jing Wu, Xu-Jie Zhou, Xi Sun, Tian-Song Xia, Xiao-Xia Li, Liang Shi, Lei Zhu, Wen-Bin Zhou, Ji-Fu Wei, Qiang Ding
BACKGROUND: The transforming growth factor-β (TGF-β) pathway plays a vital role in driving cancer cell epithelial-mesenchymal transition (EMT). Zonula occludens-1 (ZO-1), which is downregulated in response to TGF-β, is able to control endothelial cell-cell tension, cell migration, and barrier formation. However, the molecular mechanism of how TGF-β regulates ZO-1 expression remains unclear. METHODS: Breast cancer cells were treated with TGF-β to induce an EMT progress...
July 6, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28681242/the-potential-role-of-platelets-in-the-consensus-molecular-subtypes-of-colorectal-cancer
#13
REVIEW
Michael Lam, Jason Roszik, Preeti Kanikarla-Marie, Jennifer S Davis, Jeffrey Morris, Scott Kopetz, David G Menter
The consensus molecular subtypes (CMS) in colorectal cancer (CRC) represent distinct molecular subcategories of disease as reflected by comprehensive molecular profiling. The four CMS subtypes represent unique biology. CMS1 represents high immune infiltration. CMS2 demonstrates upregulation of canonical pathways such as WNT signaling. Widespread metabolic changes are seen in CMS3. CMS4 represents a mesenchymal phenotype with hallmark features including complement activation, matrix remodeling, angiogenesis, epithelial-mesechymal transition (EMT), integrin upregulation and stromal infiltration...
July 6, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28671581/pleiotropic-roles-of-non-coding-rnas-in-tgf-%C3%AE-mediated-epithelial-mesenchymal-transition-and-their-functions-in-tumor-progression
#14
REVIEW
Simon Grelet, Ariel McShane, Renaud Geslain, Philip H Howe
Epithelial-mesenchymal transition (EMT) is a spatially- and temporally-regulated process involved in physiological and pathological transformations, such as embryonic development and tumor progression. While the role of TGF-β as an EMT-inducer has been extensively documented, the molecular mechanisms regulating this transition and their implications in tumor metastasis are still subjects of intensive debates and investigations. TGF-β regulates EMT through both transcriptional and post-transcriptional mechanisms, and recent advances underline the critical roles of non-coding RNAs in these processes...
July 1, 2017: Cancers
https://www.readbyqxmd.com/read/28670367/silencing-of-advanced-glycosylation-and-glycosylation-and-product-specific-receptor-rage-inhibits-the-metastasis-and-growth-of-non-small-cell-lung-cancer
#15
Yan Xia Yu, Wen Chong Pan, Yu Feng Cheng
Non-small cell lung cancer (NSCLC) constitutes the main cases of lung cancer and is the world's most common and lethal cancer owing to regional invasion or distant metastasis. Growing morbidity and lethality demonstrates that valid molecular target in management of NSCLC metastasis is still absence. The receptor of advanced glycation end-products (RAGE) has been identified as an oncogenic gene and appears to promote the growth and metastasis of various cancers. Here, we investigated if RAGE targeted by RNA interference (RNAi) might have certain effect on the restraint of the growth of NSCLC and tumor metastasis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28667660/signaling-pathways-and-their-mirna-regulators-involved-in-the-etiopathology-of-idiopathic-pulmonary-fibrosis-ipf-and-hypersensitivity-pneumonitis-hp
#16
Justyna Kiszałkiewicz, Wojciech Piotrowski, Ewa Brzeziańska-Lasota
Idiopathic pulmonary fibrosis (IPF) and hypersensitivity pneumonitis (HP) belong to heterogenic group of interstitial lung diseases (ILD). For the reason that this group of diseases present with complex clinical non-specific features, they represent a diagnostic and therapeutic challenge. In this review we focus on several crucial signaling pathways participating in inflammation, fibrosis and EMT processes, so important in the course of ILD: TNF-α/NFκβ, TGF-β/SMAD, Wnt-β-catenin and PI3K-Akt signaling...
2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/28666208/mir-542-3p-inhibits-metastasis-and-epithelial-mesenchymal-transition-of-hepatocellular-carcinoma-by-targeting-ube3c
#17
Jie Tao, Zhikui Liu, Yufeng Wang, Liang Wang, Bowen Yao, Qing Li, Cong Wang, Kangsheng Tu, Qingguang Liu
Accumulating evidence demonstrates that aberrant miRNAs contribute to hepatocellular carcinoma (HCC) development and progression. However, the roles of various miRNAs in HCC remain to be determined. In present research, we confirmed that a reduced miR-542-3p expression was present in HCC tissues and cell lines. Our clinical analysis revealed that the down-regulated miR-542-3p expression was significantly correlated with poor prognostic features including advanced TNM stage and venous infiltration. Moreover, we confirmed that miR-542-3p was a novel independent prognostic marker for predicting 5-year survival of HCC patients...
June 27, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28656304/mir-138-inhibits-gastric-cancer-growth-by-suppressing-sox4
#18
Lei Pang, Bai Li, Baisong Zheng, Liang Niu, Liang Ge
MicroRNA-138 (miR-138) has been reported to be downregulated and function as a tumor suppressor in several cancers. However, the role and molecular mechanisms of miR-138 in the progression of gastric cancer (GC) remain to be clarified. The aim of the present study was to determine the role of miR-138 in GC progression. In the present study we found that miR-138 expression was downregulated in GC tissues and cell lines. Statistical analysis demonstrated that low expression levels of miR-138 were associated with advanced tumor-node-metastasis (TNM) stage, and lymph node metastasis...
June 22, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28644441/micrornas-143-and-145-induce-epithelial-to-mesenchymal-transition-and-modulate-the-expression-of-junction-proteins
#19
Lidia Avalle, Danny Incarnato, Aurora Savino, Marta Gai, Francesca Marino, Sara Pensa, Isaia Barbieri, Michael B Stadler, Paolo Provero, Salvatore Oliviero, Valeria Poli
Transforming growth factor (TGF)-β is one of the major inducers of epithelial to mesenchymal transition (EMT), a crucial program that has a critical role in promoting carcinoma's metastasis formation. MicroRNAs-143 and -145, which are both TGF-β direct transcriptional targets, are essential for the differentiation of vascular smooth muscle cells (VSMC) during embryogenesis, a TGF-β-dependent process reminiscent of EMT. Their role in adult tissues is however less well defined and even ambiguous, as their expression was correlated both positively and negatively with tumor progression...
June 23, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28638267/synergistic-antitumor-effect-of-sorafenib-in-combination-with-atm-inhibitor-in-hepatocellular-carcinoma-cells
#20
Jianhua Liu, Yahui Liu, Lingyu Meng, Bai Ji, Daqing Yang
Background: Currently, sorafenib is the only systemic chemotherapy drug for advanced stage Hepatocellular carcinoma (HCC). However, emerging data from some clinical HCC patients indicate that sorafenib alone has only moderate antitumor efficacy, and could not inhibit disease metastasis and progression. KU-55933 is a specific ATM inhibitor, which has pro-apoptotic effect on tumor cells. In this study, we analyzed the synergistic effect of sorafenib and KU-55933 on the proliferation of HCC cell lines. Methods: Three HCC cell lines were treated with sorafenib and KU-55933 alone or combination in vitro to investigate inhibitory effect by MTT and wound healing assay...
2017: International Journal of Medical Sciences
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