scholarly journals Detection of the G17V RHOA Mutation in Angioimmunoblastic T-Cell Lymphoma and Related Lymphomas Using Quantitative Allele-Specific PCR

PLoS ONE ◽  
2014 ◽  
Vol 9 (10) ◽  
pp. e109714 ◽  
Author(s):  
Rie Nakamoto-Matsubara ◽  
Mamiko Sakata-Yanagimoto ◽  
Terukazu Enami ◽  
Kenichi Yoshida ◽  
Shintaro Yanagimoto ◽  
...  
2019 ◽  
Vol 91 (7) ◽  
pp. 63-69
Author(s):  
N G Chernova ◽  
Y V Sidorova ◽  
S Y Smirnova ◽  
N V Ryzhikova ◽  
E E Nikulina ◽  
...  

Aim: to determine molecular diagnostics routine for different tissue samples in angioimmunoblastic T-cell lymphoma. Materials and methods. Molecular studies were performed for 84 primary AITL patients. The median age was 61 year (29-81); the male to female ratio was 48/36. T-cell and B-cell clonality was assessed by GeneScan analysis of rearranged T-cell receptor (TCRG, TCRB) and immunoglobulin heavy chain genes. For the quantitative determination of cells with RHOA G17V mutation real - time polymerase chain reaction (PCR) with allele - specific LNA modified primers was used. Results. In lymph nodes rearrangements of T-cell receptor genes were determined in 76 (90.5%) of 84 patients and were absent in 8 (9.5%) cases. Identification of the same clonal products of the TCRG and TCRB genes in the lymph node and in peripheral blood and/or bone marrow indicated the prevalence of the tumor process and was observed in 64.7% of patients. Clonal products in peripheral blood and/or bone marrow different from those in the lymph node indicated reactive cytotoxic lymphocyte population and were noted in 58.8% of AITL cases. Simultaneous detection of T- and B-cell clonality in the lymph node was observed in 20 (24.7%) of 81 patients. Cells with RHOA G17V mutation were detected in lymph node in 45 (54.9%) of 82 patients. The use of allele - specific PCR with LNA modified primers revealed presence of the tumor cells in peripheral blood in 100% and in bone marrow in 93.9% of patients with G17V RHOA mutation in the lymph nodes. Conclusion. The validity of different molecular assays performed on certain tissue samples for the diagnosis of angioimmunoblastic T-cell lymphoma has been evaluated. Quantitative allele - specific PCR assay for RHOA G17V mutation based on LNA modified primers possesses sufficient sensitivity for tumor process prevalence evaluation and minimal residual disease monitoring.


2012 ◽  
Vol 74 (4) ◽  
pp. 399-404
Author(s):  
Kana KOZONO ◽  
Kazuhiko YAMAMURA ◽  
Toshihiko MASHINO ◽  
Masutaka FURUE ◽  
Hideki ASAOKU ◽  
...  

2021 ◽  
Vol 49 (5) ◽  
pp. 030006052110132
Author(s):  
Jie Sun ◽  
Sha He ◽  
Hong Cen ◽  
Da Zhou ◽  
Zhe Li ◽  
...  

Objective To explore prognostic factors and develop an accurate prognostic prediction model for angioimmunoblastic T-cell lymphoma (AITL). Methods Clinical data from Chinese patients with newly diagnosed AITL were retrospectively analysed. Overall survival (OS) and progression-free survival (PFS) were estimated using Kaplan-Meier method survival curves; prognostic factors were determined using a Cox proportional hazards model. The sensitivity and specificity of the predicted survival rates were compared using area under the curve (AUC) of receiver operating characteristic (ROC) curves. Results The estimated 5-year OS and PFS of 55 eligible patients with AITL were 22% and 3%, respectively. Multivariate analysis showed that the presence of pneumonia, and serous cavity effusions at initial diagnosis were significant prognostic factors for OS. Based on AUC ROC values, our novel prognostic model was superior to IPI and PIT based models and suggested better diagnostic accuracy. Conclusions Our prognostic model based on pneumonia, and serous cavity effusions at initial diagnosis enabled a balanced classification of AITL patients into different risk groups.


2020 ◽  
Vol 9 (1) ◽  
pp. 1746553
Author(s):  
Gyu Jin Lee ◽  
Yukyung Jun ◽  
Hae Yong Yoo ◽  
Yoon Kyung Jeon ◽  
Daekee Lee ◽  
...  

2021 ◽  
Vol 9 (6) ◽  
Author(s):  
Wendi Bao ◽  
Kendall L. Buchanan ◽  
Loretta S. Davis

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