نتایج جستجو برای: epithelial mesenchymal transition

تعداد نتایج: 436793  

2015
Xin Yin Bo-Heng Zhang Su-Su Zheng Dong-Mei Gao Shuang-Jian Qiu Wei-Zhong Wu Zheng-Gang Ren

BACKGROUND Oct4 and Nanog are key regulatory genes that maintain the pluripotency and self-renewal properties of embryonic stem cells. We previously reported that the two stemness markers were tightly associated with cancer progression and poor outcomes of hepatocellular carcinoma. In this study, we demonstrate that coexpression of Oct4/Nanog modulates activation of signal transducer and activa...

2016
Giulia Chiabotto Stefania Bruno Federica Collino Giovanni Camussi

Mesenchymal-epithelial interactions play an important role in renal tubular morphogenesis and in maintaining the structure of the kidney. The aim of this study was to investigate whether extracellular vesicles (EVs) produced by human renal proximal tubular epithelial cells (RPTECs) may induce mesenchymal-epithelial transition of bone marrow-derived mesenchymal stromal cells (MSCs). To test this...

Journal: :The Journal of biological chemistry 2005
Jong In Yook Xiao-Yan Li Ichiro Ota Eric R Fearon Stephen J Weiss

Down-regulation of E-cadherin marks the initiation of the epithelial-mesenchymal transition, a process exploited by invasive cancer cells. The zinc finger transcription factor, Snail, functions as a potent repressor of E-cadherin expression that can, acting alone or in concert with the Wnt/beta-catenin/T cell factor axis, induce an epithelial-mesenchymal transition. Although mechanisms that coo...

2016
Jing Chen Kai Zhang Haizhu Song Rui Wang Xiaoyuan Chu Longbang Chen

Chemoresistance remains one of the major obstacles in clinical treatment of lung adenocarcinoma (LAD). Indeed, docetaxel-resistant LAD cells present chemoresistance and epithelial-to-mesenchymal transition phenotypes. Long non-coding RNAs (lncRNAs) are known to promote tumorigenesis in many cancer types. Here, we showed that the lncRNA colon cancer-associated transcript-1 (CCAT1) was upregulate...

2016
Junli Deng Li Wang Hongmin Chen Jingli Hao Jie Ni Lei Chang Wei Duan Peter Graham Yong Li

Chemoresistance is the main challenge for the recurrent ovarian cancer therapy and responsible for treatment failure and unfavorable clinical outcome. Understanding mechanisms of chemoresistance in ovarian cancer would help to predict disease progression, develop new therapies and personalize systemic therapy. In the last decade, accumulating evidence demonstrates that epithelial-mesenchymal tr...

2009
Astrid M Doerner Bruce L Zuraw

BACKGROUND Chronic persistent asthma is characterized by ongoing airway inflammation and airway remodeling. The processes leading to airway remodeling are poorly understood, and there is increasing evidence that even aggressive anti-inflammatory therapy does not completely prevent this process. We sought to investigate whether TGFbeta1 stimulates bronchial epithelial cells to undergo transition...

Journal: :Journal of allied health 2014
Abbas Heydari Mojtaba Rad Mohammad Reza Ghasemi Marzie Torkmannejad Sabzevari Mostafa Rad

OBJECTIVE Emergency medical technicians (EMTs) in Iran enter the workplace after a short academic education. Their workplace has high emotional fluctuations and imposes high pressure. The aim of this study was to assess the challenges faced by EMT graduates in Iran. DESIGN This applied study was conducted using qualitative content analysis. Twelve paramedics and graduates with 2 to 3 years of...

Journal: :Experimental oncology 2011
Yu I Kudryavets N O Bezdenezhnykh O O Lykhova N I Semesiuk A L Vorontsova

Ali Bijani, Majid Fereidooni, Pouyan Amini Shakib, Samad Ejtehadi, Shima Nafarzadeh,

Oral lichen planus (OLP) is a chronic inflammatory disease of the oral mucosa which is considered by the World Health Organization (WHO) as a premalignant condition. One step in malignant development is so called epithelial mesenchymal transition (EMT), a process whereby epithelial cells acquire mesenchymal characteristics. A factor known to induce EMT is the transforming growth factor-β (TGF-β...

2011
Bin Li Yun-Wen Zheng Yuuki Sano Hideki Taniguchi

UNLABELLED Mesenchymal-epithelial transition events are related to embryonic development, tissue construction, and wound healing. Stem cells are involved in all of these processes, at least in part. However, the direct evidence of mesenchymal-epithelial transition associated with stem cells is unclear. To determine whether mesenchymal-epithelial transition occurs in liver development and/or the...

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