نتایج جستجو برای: pdgfra

تعداد نتایج: 1003  

2012
Michael C. Heinrich Arin McKinley Janice Patterson Ajia Presnell Abhijit Ramachandran Maria Debiec-Rychter

Purpose: To determine the potential of crenolanib, a potent inhibitor of PDGFRA, to treat malignancies driven by mutant PDGFRA. Experimental Design: The biochemical activity of crenolanibwas comparedwith imatinib using a panel of PDGFRA-mutant kinases expressed in several different cell line models, including primary gastrointestinal stromal tumors (GIST) cells. The antiproliferative activity o...

2016
Jing Gao Jian Li Yanyan Li Zhongwu Li Jifang Gong Jian Wu Na Liu Bin Dong Changsong Qi Jie Li Lin Shen

OBJECTIVE Gastrointestinal stromal tumors (GISTs) with no mutations in exons 9, 11, 13, and 17 of the KIT gene and exons 12, and 18 of the PDGFRA gene were defined as KIT/PDGFRA wild-type and they accounted for ~15-20% of GISTs. However, some KIT/PDGFRA wild-type GISTs with KIT mutations in other exons were occasionally reported. We therefore assessed GISTs to understand the whole genomic genot...

2013
Neil McCarthy Leah Wetherill C. Ben Lovely Mary E. Swartz Tatiana M. Foroud Johann K. Eberhart

Human birth defects are highly variable and this phenotypic variability can be influenced by both the environment and genetics. However, the synergistic interactions between these two variables are not well understood. Fetal alcohol spectrum disorders (FASD) is the umbrella term used to describe the wide range of deleterious outcomes following prenatal alcohol exposure. Although FASD are caused...

Journal: :Genes & development 2010
Tatsuya Ozawa Cameron W Brennan Lu Wang Massimo Squatrito Takashi Sasayama Mitsutoshi Nakada Jason T Huse Alicia Pedraza Satoshi Utsuki Yoshie Yasui Adesh Tandon Elena I Fomchenko Hidehiro Oka Ross L Levine Kiyotaka Fujii Marc Ladanyi Eric C Holland

Gene rearrangement in the form of an intragenic deletion is the primary mechanism of oncogenic mutation of the epidermal growth factor receptor (EGFR) gene in gliomas. However, the incidence of platelet-derived growth factor receptor-α (PDGFRA) gene rearrangement in these tumors is unknown. We investigated the PDGFRA locus in PDGFRA-amplified gliomas and identified two rearrangements, including...

2015
Thomas Grellety Michèle Kind Jean-Michel Coindre Antoine Italiano

Gastrointestinal stromal tumor (GIST) is the most frequent mesenchymal tumor of the gastrointestinal tract and one of the most frequent sarcoma. Mutually exclusive KIT and PDGFRA mutations are central events in GIST pathogenesis, and their understanding is crucial because specific treatment targeting oncogenic KIT and PDGFRA activation (especially imatinib) has become available. The most freque...

2013
Naomi Laing Brenda McDermott Shenghua Wen David Yang Deborah Lawson Mike Collins Corinne Reimer Peter A. Hall Harriet Andersén Michael Snaith Xin Wang Vahe Bedian Zhu A. Cao David Blakey

Platelet-derived growth factor receptor a (PDGFRa) is a receptor tyrosine kinase that promotes cell survival and is expressed in both the tumor and the stromal components of human cancers. We have developed a fully human monoclonal antibody, MEDI575, that selectively binds to human PDGFRa with high affinity, with no observable affinity for murine PDGFRa. To more fully characterize the role of P...

Journal: :The American journal of surgical pathology 2015
Sabrina Rossi Daniela Gasparotto Rosalba Miceli Luisa Toffolatti Giovanna Gallina Enrico Scaramel Alessandra Marzotto Elena Boscato Luca Messerini Italo Bearzi Guido Mazzoleni Carlo Capella Gianluigi Arrigoni Aurelio Sonzogni Angelo Sidoni Luigi Mariani Paola Amore Alessandro Gronchi Paolo G Casali Roberta Maestro Angelo P Dei Tos

The mutation status of KIT or PDGFRA notoriously affects the response of advanced gastrointestinal stromal tumors (GISTs) to tyrosine kinase inhibitors. Conversely, it is currently still unclear whether mutation status impinges on the prognosis of localized, untreated GISTs. Hence, at present, this variable is not included in decision making for adjuvant therapy. A series of 451 primary localiz...

2013
Naomi Laing Brenda McDermott Shenghua Wen David Yang Deborah Lawson Mike Collins Corinne Reimer Peter A. Hall Harriet Andersén Michael Snaith Xin Wang Vahe Bedian Zhu A. Cao David Blakey

Platelet-derived growth factor receptor a (PDGFRa) is a receptor tyrosine kinase that promotes cell survival and is expressed in both the tumor and the stromal components of human cancers. We have developed a fully human monoclonal antibody, MEDI575, that selectively binds to human PDGFRa with high affinity, with no observable affinity for murine PDGFRa. To more fully characterize the role of P...

2016
Bita Geramizadeh Zahra Jowkar Seyed-Javad Mousavi

BACKGROUND Gastrointestinal stromal tumors (GISTs) are potentially malignant tumors; however their behavior and response to treatment is dependent on the type of mutation and immunohistochemical expression of antigens. It is recommended to perform routine molecular and immunohistochemical tests in KIT and platelet derived growth factor receptor alpha (PDGFRA) molecules for making decision regar...

2011
Sung Hee Jung Kwang Sun Suh Dae Young Kang Dong Wook Kang Young-Beum Kim Eun-Sun Kim

BACKGROUND/AIMS The diagnosis of gastrointestinal stromal tumors (GIST) relies on the demonstration of KIT expression, but KIT expression is absent or reduced in approximately 15% of GIST. METHODS Eighty-one GISTs were diagnosed between January 1998 and December 2007 at the Department of Pathology at both Chungnam National University Hospital and Eulji University Hospital, Daejeon. Medical hi...

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