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https://www.readbyqxmd.com/read/28214878/mirna-26a-contributes-to-the-acquisition-of-malignant-behaviors-of-doctaxel-resistant-lung-adenocarcinoma-cells-through-targeting-ezh2
#1
Jing Chen, Yuejuan Xu, Leilei Tao, Yan Pan, Kai Zhang, Rui Wang, Long-Bang Chen, Xiaoyuan Chu
BACKGROUND/AIMS: Accumulating evidence revealed that microRNAs (miRNAs) have been demonstrated as critical molecules in tumor development and progression. MiR-26a, located in a fragile chromosomal region associated with various human cancer, has been reported to be involved in regulating various cellular process, such as proliferation, apoptosis and invasion through targeting multiple oncogene. Docetaxel-mediated chemotherapy has been applied in improving the survival and prognosis of patients with advanced lung adenocarcinoma (LAD)...
February 3, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28193228/microrna-381-inhibits-the-metastasis-of-gastric-cancer-by-targeting-tmem16a-expression
#2
Qinghua Cao, Fang Liu, Kaiyuan Ji, Ni Liu, Yuan He, Wenhui Zhang, Liantang Wang
BACKGROUND: MicroRNA-381 (miR-381) has been reported to play suppressive or promoting roles in different malignancies. However, the expression level, biological function, and underlying mechanisms of miR-381 in gastric cancer remain poorly understood. Our previous study indicated that transmembrane protein 16A (TMEM16A) contributed to migration and invasion of gastric cancer and predicted poor prognosis. In this study, we found that miR-381 inhibited the metastasis of gastric cancer through targeting TMEM16A expression...
February 13, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28192403/a-double-negative-feedback-loop-between-epcam-and-erk-contributes-to-the-regulation-of-epithelial-mesenchymal-transition-in-cancer
#3
N V Sankpal, T P Fleming, P K Sharma, H J Wiedner, W E Gillanders
Epithelial-mesenchymal transition (EMT) is an important biological process that has been implicated in cancer metastasis. Epithelial cell adhesion molecule (EpCAM) is expressed at the basolateral membrane of most normal epithelial cells but is overexpressed in many epithelial cancers. In our studies on the role of EpCAM in cancer biology, we observed that EpCAM expression is decreased in mesenchymal-like primary cancer specimens in vivo and following induction of EMT in cancer cell lines in vitro. Extracellular signal-related kinase (ERK) is a key regulator of EMT...
February 13, 2017: Oncogene
https://www.readbyqxmd.com/read/28192397/downregulation-of-mir-218-contributes-to-epithelial-mesenchymal-transition-and-tumor-metastasis-in-lung-cancer-by-targeting-slug-zeb2-signaling
#4
Z-M Shi, L Wang, H Shen, C-F Jiang, X Ge, D-M Li, Y-Y Wen, H-R Sun, M-H Pan, W Li, Y-Q Shu, L-Z Liu, S C Peiper, J He, B-H Jiang
Epithelial-mesenchymal transition (EMT) has been recognized as a key element of cell migration and invasion in lung cancer; however, the underlying mechanisms are not fully elucidated. Recently, emerging evidence suggest that miRNAs have crucial roles in control of EMT and EMT-associated traits such as migration, invasion and chemoresistance. Here, we found that miR-218 expression levels were significantly downregulated in lung cancer tissues compared with adjacent non-cancerous tissues, and the levels of miR-218 were significantly associated with histological grades and lymph node metastasis...
February 13, 2017: Oncogene
https://www.readbyqxmd.com/read/28186499/downregulation-of-lnc-spry1-mediates-tgf-%C3%AE-induced-epithelial-mesenchymal-transition-by-transcriptional-and-posttranscriptional-regulatory-mechanisms
#5
Cristina Rodríguez-Mateo, Belén Torres, Gabriel Gutiérrez, José A Pintor-Toro
Long non-coding RNAs (lncRNAs) are a class of regulatory genes that participate in a wide range of biological processes, including proliferation, differentiation and development, as well as in a broad spectrum of diseases. Although the role of lncRNAs in TGF-β-induced epithelial-to-mesenchymal transition (EMT) has been well established, little is known about the role of lncRNAs as immediate-early regulators of EMT. Here lnc-Spry1 is identified as an immediate-early regulator of EMT that is downregulated by TGF-β...
February 10, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28186090/downregulation-of-microrna-145-promotes-epithelial-mesenchymal-transition-via-regulating-snail-in-osteosarcoma
#6
Z Zhang, M Zhang, Q Chen, Q Zhang
Metastasis is the principal cause of cancer death and occurs through multiple, complex processes. Epithelial to mesenchymal transition (EMT) is an important process during embryonic development and has also been hypothesized to exhibit a significant role in cancer cell invasion and metastasis. MicroRNAs (miRNAs) are a class of widespread noncoding RNAs. In recent years, many studies have shown that miRNAs could influence the signaling pathways and downstream events that define EMT on a molecular level. However, the exact role and mechanisms of miR-145 in EMT of osteosarcoma (OS) was unknown...
February 10, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28186089/adenovirus-mediated-tipe2-overexpression-inhibits-gastric-cancer-metastasis-via-reversal-of-epithelial-mesenchymal-transition
#7
H Yin, X Huang, M Tao, Q Hu, J Qiu, W Chen, J Wu, Y Xie
Tumor necrosis factor (TNF)-alpha-induced protein 8-like 2 (TNFAIP8L2; also termed TIPE2) has been shown to be involved in both the immune-negative modulation and cancer. We previously found that TIPE2 is lost in human gastric cancer, and TIPE2 restoration suppresses gastric cancer growth by induction of apoptosis and impairment of protein kinase B (PKB/AKT) and extracellular signal-regulated kinase-1/2 (ERK1/2) signaling. However, its correlation with epithelial-mesenchymal transition (EMT) in gastric cancer is largely elusive...
February 10, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28177885/aminopeptidase-a-initiates-tumorigenesis-and-enhances-tumor-cell-stemness-via-twist1-upregulation-in-colorectal-cancer
#8
Hui-Yu Chuang, Jeng-Kae Jiang, Muh-Hwa Yang, Hsei-Wei Wang, Ming-Chun Li, Chan-Yen Tsai, Yau-Yun Jhang, Jason C Huang
Metastasis accounts for the high mortality rate associated with colorectal cancer (CRC), but metastasis regulators are not fully understood. To identify a novel gene involved in tumor metastasis, we used oligonucleotide microarrays, transcriptome distance analyses, and machine learning algorithms to determine links between primary and metastatic colorectal cancers. Aminopeptidase A (APA; also known as ENPEP) was selected as our focus because its relationship with colorectal cancer requires clarification. Higher APA mRNA levels were observed in patients in advanced stages of cancer, suggesting a correlation between ENPEP and degree of malignancy...
February 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28166544/use-of-tumor-infiltrating-lymphocytes-tils-to-predict-the-treatment-response-to-eribulin-chemotherapy-in-breast-cancer
#9
Shinichiro Kashiwagi, Yuka Asano, Wataru Goto, Koji Takada, Katsuyuki Takahashi, Satoru Noda, Tsutomu Takashima, Naoyoshi Onoda, Shuhei Tomita, Masahiko Ohsawa, Kosei Hirakawa, Masaichi Ohira
BACKGROUND: Eribulin mesylate (eribulin) is currently indicated for treatment of locally advanced or metastatic breast cancer (MBC). It is a cytotoxic agent with unique mechanisms that suppress epithelial-mesenchymal transition (EMT) of cancer cells. On the other hand, Tumor-infiltrating lymphocytes (TILs), which are considered indicators of immune response monitoring, have been reported as prognostic factors and predictors of therapeutic efficacy. We thought that eribulin, which has an EMT-inhibiting mechanism, may produce an antitumor effect by improving the immune microenvironment, and in this study investigated the effects of breast cancer eribulin chemotherapy on the immune microenvironment with TILs as a marker...
2017: PloS One
https://www.readbyqxmd.com/read/28158294/deep-proteome-mapping-of-wm-266-4-human-metastatic-melanoma-cells-from-oncogenic-addiction-to-druggable-targets
#10
Eumorphia G Konstantakou, Athanassios D Velentzas, Athanasios K Anagnostopoulos, Zoi I Litou, Ourania A Konstandi, Aikaterini F Giannopoulou, Ema Anastasiadou, Gerassimos E Voutsinas, George Th Tsangaris, Dimitrios J Stravopodis
Cutaneous melanoma is a malignant tumor of skin melanocytes that are pigment-producing cells located in the basal layer (stratum basale) of epidermis. Accumulation of genetic mutations within their oncogenes or tumor-suppressor genes compels melanocytes to aberrant proliferation and spread to distant organs of the body, thereby resulting in severe and/or lethal malignancy. Metastatic melanoma's heavy mutational load, molecular heterogeneity and resistance to therapy necessitate the development of novel biomarkers and drug-based protocols that target key proteins involved in perpetuation of the disease...
2017: PloS One
https://www.readbyqxmd.com/read/28145547/garcinol-sensitizes-breast-cancer-cells-to-taxol-through-the-suppression-of-caspase-3-ipla2-and-nf-%C3%AE%C2%BAb-twist1-signaling-pathways-in-a-mouse-4t1-breast-tumor-model
#11
Shih-Hsin Tu, Yi-Shiou Chiou, Nagabhushanam Kalyanam, Chi-Tang Ho, Li-Ching Chen, Min-Hsiung Pan
Breast cancer is a significant threat to women's health and has high incidence and mortality. Metastasis in breast cancer patients is a major cause of cancer deaths among women worldwide. Clinical experience suggests that patients with metastatic triple-negative breast cancer (TNBC) relapse quickly and often have chemotherapy resistance. Taxol (paclitaxel) is an effective chemotherapeutic agent for treating metastatic breast cancer, but Taxol at high doses can cause adverse effects and recurrent resistance...
February 1, 2017: Food & Function
https://www.readbyqxmd.com/read/28135249/the-cdc42-rac1-regulator-cdgap-is-a-novel-e-cadherin-transcriptional-co-repressor-with-zeb2-in-breast-cancer
#12
Y He, J J Northey, A Pelletier, Z Kos, L Meunier, B Haibe-Kains, A-M Mes-Masson, J-F Côté, P M Siegel, N Lamarche-Vane
The loss of E-cadherin causes dysfunction of the cell-cell junction machinery, which is an initial step in epithelial-to-mesenchymal transition (EMT), facilitating cancer cell invasion and the formation of metastases. A set of transcriptional repressors of E-cadherin (CDH1) gene expression, including Snail1, Snail2 and Zeb2 mediate E-cadherin downregulation in breast cancer. However, the molecular mechanisms underlying the control of E-cadherin expression in breast cancer progression remain largely unknown...
January 30, 2017: Oncogene
https://www.readbyqxmd.com/read/28133913/the-role-of-epithelial-mesenchymal-transition-drivers-zeb1-and-zeb2-in-mediating-docetaxel-resistant-prostate-cancer
#13
Karen Hanrahan, Amanda O'Neill, Maria Prencipe, Jane Bugler, Lisa Murphy, Aurelie Fabre, Martin Puhr, Zoran Culig, Keefe Murphy, R William Watson
Docetaxel is the main treatment for advanced castration-resistant prostate cancer; however, resistance eventually occurs. The development of intratumoral drug-resistant subpopulations possessing a cancer stem cell (CSC) morphology is an emerging mechanism of docetaxel resistance, a process driven by epithelial-mesenchymal transition (EMT). This study characterised EMT in docetaxel-resistant sublines through increased invasion, MMP-1 production and ZEB1 and ZEB2 expression. We also present evidence for differential EMT across PC-3 and DU145 in vitro resistance models as characterised by differential migration, cell colony scattering and susceptibility to the CSC inhibitor salinomycin...
December 19, 2016: Molecular Oncology
https://www.readbyqxmd.com/read/28122338/chemotherapy-mediated-mir-29b-expression-inhibits-the-invasion-and-angiogenesis-of-cervical-cancer
#14
Yunyun Li, Zhongzu Zhang, Zhenghua Xiao, Ying Lin, Tangshu Luo, Qin Zhou, Xiaojing Zhang
Radiotherapy combined with platinum-based chemotherapy is the standard-of-care of locally advanced cervical cancer (CC) patients, while nearly 50% of patients do not respond to standard chemotherapy. Thus, identification of relative molecules participated in chemotherapy might provide new insights in the treatment of CC. In this study, we found a cohort of miRNAs were dysregulated upon treatment with cisplatin, among of which miR-29b was the most upregulated one. We further detected its expression in CC tissues, and found that miR-29b was significantly suppressed in CC and its precancerous lesions, HSIL tissues, and was negatively related with tumor invasion...
January 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28114283/an-integrated-analysis-identifies-stat4-as-a-key-regulator-of-ovarian-cancer-metastasis
#15
L Zhao, G Ji, X Le, Z Luo, C Wang, M Feng, L Xu, Y Zhang, W B Lau, B Lau, Y Yang, L Lei, H Yang, Y Xuan, Y Chen, X Deng, T Yi, S Yao, X Zhao, Y Wei, S Zhou
Epithelial ovarian cancer (EOC) is one of the most common gynecological cancers, with diagnosis often at a late stage. Metastasis is a major cause of death in patients with EOC, but the underlying molecular mechanisms remain obscure. Here, we utilized an integrated approach to find potential key transcription factors involved in ovarian cancer metastasis and identified STAT4 as a critical player in ovarian cancer metastasis. We found that activated STAT4 was overexpressed in epithelial cells of ovarian cancer and STAT4 overexpression was associated with poor outcome of ovarian cancer patients, which promoted metastasis of ovarian cancer in both in vivo and in vitro...
January 23, 2017: Oncogene
https://www.readbyqxmd.com/read/28111340/microrna-144-3p-suppresses-gastric-cancer-progression-by-inhibiting-epithelial-to-mesenchymal-transition-through-targeting-pbx3
#16
Butian Li, Shengping Zhang, Hao Shen, Chenglong Li
MicroRNAs are aberrantly expressed in a wide variety of human cancers. The present study aims to elucidate the effects and molecular mechanisms of miR-144-3p that underlie gastric cancer (GC) development. It was observed that miR-144-3p expression was significantly decreased in GC tissues compared to that in paired non-tumor tissues; moreover, its expression was lower in tissues of advanced stage and larger tumor size, as well as in lymph node metastasis tissues compared to that in control groups. miR-144-3p expression was associated with depth of invasion (P = 0...
January 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28104986/expression-of-trefoil-factors-and-twist1-in-colorectal-cancer-and-their-correlation-with-metastatic-potential-and-prognosis
#17
Akram Yusup, Bailikezi Huji, Cheng Fang, Fei Wang, Tuerxunjiang Dadihan, Hai-Jiang Wang, Halmurat Upur
AIM: To detect the expression of trefoil factors (TFFs) and TWIST1 in colorectal cancer (CRC) and analyze their correlation with metastasis and survival. METHODS: This study examined the expression of TFF1, TFF3 and TWIST1 in a total of 75 tumor samples, 47 matched normal samples (15 cm from the lesion margin), 30 metastatic lymph nodes, and 10 liver metastatic cancer samples from patients with CRC. The relationship was then analyzed between the protein expression and different clinical records...
January 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28096336/%C3%AE-catenin-haploinsufficiency-promotes-mammary-tumorigenesis-in-an-erbb2-positive-basal-breast-cancer-model
#18
Bui Tung, Babette Schade, Robert D Cardiff, Olulanu H Aina, Virginie Sanguin-Gendreau, William J Muller
Aberrant activation of β-catenin through its activity as a transcription factor has been observed in a large proportion of human malignancies. Despite the improved understanding of the β-catenin signaling pathway over the past three decades, attempts to develop therapies targeting β-catenin remain challenging, and none of these targeted therapies have advanced to the clinic. In this study, we show that part of the challenge in antagonizing β-catenin is caused by its dual functionality as a cell adhesion molecule and a signaling molecule...
January 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28095934/the-effect-of-ambulance-staffing-models-in-a-metropolitan-fire-based-ems-system
#19
Eric J Cortez, Ashish R Panchal, James E Davis, David P Keseg
: Introduction The staffing of ambulances with different levels of Emergency Medical Service (EMS) providers is a difficult decision with evidence being mixed on the benefit of each model. Hypothesis/Problem The objective of this study was to describe a pilot program evaluating alternative staffing on two ambulances utilizing the paramedic-basic (PB) model (staffed with one paramedic and one emergency medical technician[EMT]). METHODS: This was a retrospective study conducted from September 17, 2013 through December 31, 2013...
January 18, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28095858/mir-4775-promotes-colorectal-cancer-invasion-and-metastasis-via-the-smad7-tgf%C3%AE-mediated-epithelial-to-mesenchymal-transition
#20
Senlin Zhao, Hongcheng Sun, Weiliang Jiang, Yushuai Mi, Dongyuan Zhang, Yugang Wen, Dantong Cheng, Huamei Tang, Shaohan Wu, Yang Yu, Xisheng Liu, Weiyingqi Cui, Meng Zhang, Xiaofeng Sun, Zongguang Zhou, Zhihai Peng, Dongwang Yan
BACKGROUND: Despite advancements in the diagnosis and treatment of colorectal cancer (CRC), many patients die because of tumor metastasis or recurrence. Therefore, identifying new prognostic markers and elucidating the mechanisms of CRC metastasis and recurrence will help to improve the prognosis of the disease. As dysregulation of microRNAs is strongly related to cancer progression, the aim of this study was to identify the role of miR-4775 in the prognosis of CRC patients and the underling mechanisms involved in CRC progression...
January 17, 2017: Molecular Cancer
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