نتایج جستجو برای: brafv600e

تعداد نتایج: 835  

Journal: :Oncotarget 2015
Gregory Michelotti Xiaoyin Jiang Julie Ann Sosa Anna Mae Diehl Brittany Bohinc Henderson

PURPOSE Leucine-rich repeat-containing G-protein-coupled receptor 5 (LGR5) is a cancer stem cell marker and a down-stream target in Wnt/β-catenin signaling. In human papillary thyroid cancer (PTC), over activation of Wnt/β-catenin has been associated with tumor aggressiveness. PATIENTS AND METHODS Using established human cell lines (TPC-1, KTC-1, Nthy-ori-3-1), we report LGR5 and R-spondin (R...

Thyroid cancer is a frequent endocrine related malignancy with continuous increasing incidence. There has been moving development in understanding its molecular pathogenesis recently mainly through the explanation of the original role of several key signaling pathways and related molecular distributors. Central to these mechanisms are the genetic and epigenetic alterations in these pathways, su...

2014
Inderjit Daphu Sindre Horn Daniel Stieber Jobin K. Varughese Endy Spriet Hege Avsnes Dale Kai Ove Skaftnesmo Rolf Bjerkvig Frits Thorsen

Malignant melanoma is the most lethal form of skin cancer, with a high propensity to metastasize to the brain. More than 60% of melanomas have the BRAFV600E mutation, which activates the mitogen-activated protein kinase (MAPK) pathway [1]. In addition, increased PI3K (phosphoinositide 3-kinase) pathway activity has been demonstrated, through the loss of activity of the tumor suppressor gene, PT...

2017
Yea Eun Kang Jin-Man Kim Koon Soon Kim Joon Young Chang Mingyu Jung Junguee Lee Shinae Yi Hyeon Woo Kim Jung Tae Kim Kyungmin Lee Min Jeong Choi Seul Ki Kang Seong Eun Lee Hyon-Seung Yi Bon Seok Koo Minho Shong

The signaling pathway involving the R-spondins and its cognate receptor, GPR48/LGR4, is crucial in development and carcinogenesis. However, the functional implications of the R-spondin-GPR48/LGR4 pathway in thyroid remain to be identified. The aim of this study was to investigate the role of R-spondin-GPR48/LGR4 signaling in papillary thyroid carcinomas. We retrospectively reviewed a total of 2...

2017
Zeus A. Antonello Nancy Hsu Manoj Bhasin Giovanni Roti Mukta Joshi Paul Van Hummelen Emily Ye Agnes S. Lo S. Ananth Karumanchi Christine R. Bryke Carmelo Nucera

Purpose Papillary thyroid carcinoma (PTC) is the most frequent endocrine tumor. BRAFV600E represents the PTC hallmark and is targeted with selective inhibitors (e.g. vemurafenib). Although there have been promising results in clinical trials using these inhibitors, most patients develop resistance and progress. Tumor clonal diversity is proposed as one mechanism underlying drug resistance. Here...

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