نتایج جستجو برای: itd mutation

تعداد نتایج: 292736  

2012
Mariko Takenokuchi Seiji Kawano Yuji Nakamachi Yasuyuki Sakota Meilani Syampurnawati Katsuyasu Saigo Eiji Tatsumi Shunichi Kumagai

Acute promyelocytic leukemia (APL) is characterized by the specific PML-RARα fusion gene resulting from translocation t(15;17) (q22;q12). Internal tandem duplication (ITD) of the FLT3 gene has been observed in approximately 35% of APLs, and large-scale studies have identified the presence of ITD as an adverse prognostic factor for acute myeloblastic leukemia (AML) patients. Aberrant expressions...

2008
Soo-Mee Bang Jeong Yeal Ahn Jiyoon Park Se Hoon Park Jinny Park Eun Kyung Cho Dong Bok Shin Jae Hoon Lee Soo Jin Yoo In Sang Jeon Yeo-Kyeoung Kim Hyeoung Joon Kim Hee-Nam Kim Il-Kwon Lee Hyoung Jin Kang Hee Young Shin Hyo Seop Ahn

FLT3 mutations are common genetic changes, and are reported to have prognostic significance in acute myeloid leukemia (AML). The FLT3 internal tandem duplication (ITD) and the D835 activating mutation in the tyrosine kinase domain (TKD) were analyzed by polymerase chain reaction (PCR) in the genomic DNA of Korean patients with AML at diagnosis and during follow-up. There were 226 patients with ...

2008
Lars Bullinger Konstanze Döhner Raphael Kranz Christoph Stirner Stefan Fröhling Claudia Scholl Young H. Kim Richard F. Schlenk Robert Tibshirani R. Pollack

Acute myeloid leukemia with normal karyotype (NK-AML) represents a cytogenetic grouping with intermediate prognosis but substantial molecular and clinical heterogeneity. Within this subgroup, presence of FLT3 (FMS-like tyrosine kinase 3) internal tandem duplication (ITD) mutation predicts less favorable outcome. The goal of our study was to discover geneexpression patterns correlated with FLT3I...

Journal: :Blood 2001
P D Kottaridis R E Gale M E Frew G Harrison S E Langabeer A A Belton H Walker K Wheatley D T Bowen A K Burnett A H Goldstone D C Linch

In acute myeloid leukemia (AML), further prognostic determinants are required in addition to cytogenetics to predict patients at increased risk of relapse. Recent studies have indicated that an internal tandem duplication (ITD) in the FLT3 gene may adversely affect clinical outcome. This study evaluated the impact of a FLT3/ITD mutation on outcome in 854 patients, mostly 60 years of age or youn...

2014
Grzegorz Helbig Krzysztof Wozniczka Agnieszka Wieclawek Anna Soja Aleksandra Bartkowska-Chrobok Slawomira Kyrcz-Krzemien

AIM OF THE STUDY Mutant NPM1 and CEBPA have been reported in patients with acute myeloid leukaemia (AML) and intermediate cytogenetic risk, and they appear to be associated with characteristic demographic and laboratory data, as well as clinical outcome. The objective of the study was to assess the clinical relevance of NPM1 and CEBPA mutations in AML. MATERIAL AND METHODS This retrospective ...

Journal: :Blood 2011
Wen-Chien Chou Sheng-Chieh Chou Chieh-Yu Liu Chien-Yuan Chen Hsin-An Hou Yuan-Yeh Kuo Ming-Cheng Lee Bor-Sheng Ko Jih-Luh Tang Ming Yao Woei Tsay Shang-Ju Wu Shang-Yi Huang Szu-Chun Hsu Yao-Chang Chen Yi-Chang Chang Yi-Yi Kuo Kuan-Ting Kuo Fen-Yu Lee Ming-Chi Liu Chia-Wen Liu Mei-Hsuan Tseng Chi-Fei Huang Hwei-Fang Tien

The studies concerning clinical implications of TET2 mutation in patients with primary acute myeloid leukemia (AML) are scarce. We analyzed TET2 mutation in 486 adult patients with primary AML. TET2 mutation occurred in 13.2% of our patients and was closely associated with older age, higher white blood cell and blast counts, lower platelet numbers, normal karyotype, intermediate-risk cytogeneti...

Journal: :Journal of Hematology and Oncology 2008
Angela YC Tan David A Westerman Dennis A Carney John F Seymour Surender Juneja Alexander Dobrovic

BACKGROUND Molecular characterisation of normal karyotype acute myeloid leukemia (NK-AML) allows prognostic stratification and potentially can alter treatment choices and pathways. Approximately 45-60% of patients with NK-AML carry NPM1 gene mutations and are associated with a favourable clinical outcome when FLT3-internal tandem duplications (ITD) are absent. High resolution melting (HRM) is a...

Journal: :Blood 2013
Marta Pratcorona Salut Brunet Josep Nomdedéu Josep Maria Ribera Mar Tormo Rafael Duarte Lourdes Escoda Ramon Guàrdia M Paz Queipo de Llano Olga Salamero Joan Bargay Carmen Pedro Josep Maria Martí Montserrat Torrebadell Marina Díaz-Beyá Mireia Camós Dolors Colomer Montserrat Hoyos Jorge Sierra Jordi Esteve

Risk associated to FLT3 internal tandem duplication (FLT3-ITD) in patients with acute myeloid leukemia (AML) may depend on mutational burden and its interaction with other mutations. We analyzed the effect of FLT3-ITD/FLT3 wild-type (FLT3wt) ratio depending on NPM1 mutation (NPM1mut) in 303 patients with intermediate-risk cytogenetics AML treated with intensive chemotherapy. Among NPM1mut patie...

2014
Min Wang Na He Tian Tian Lu Liu Shuang Yu Daoxin Ma

Since the discovery of JAK2V617F tyrosine kinase-activating mutation, several genes have been found mutated in myeloproliferative neoplasms (MPNs). FLT3-ITD, NPM1, and DNMT3A mutations frequently occurred in AML patients and have been found conferred with myeloproliferative neoplasms in mouse model. Therefore, we sought to search for mutations in JAK2V617F, FLT3-ITD, NPM1, and DNMT3A in 129 cas...

2010
Wakako Jo Katsura Ishizu Kenji Fujieda Toshihiro Tajima

Loss-of-function mutations of the PAX8 gene are considered to mainly cause congenital hypothyroidism (CH) due to thyroid hypoplasia. However, some patients with PAX8 mutation have demonstrated a normal-sized thyroid gland. Here we report a CH patient caused by a PAX8 mutation, which manifested as iodide transport defect (ITD). Hypothyroidism was detected by neonatal screening and L-thyroxine re...

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