Abstract
Mantle cell lymphoma (MCL) is incurable in most patients. Several molecular markers have been identified as possible prognostic factors in MCL, including TP53 mutations. Direct sequencing was used to detect 32 cases with leukemic presentation of MCL form exons 2–11 in order to explore the prognostic significance of TP53 mutations in Chinese patients. Within the MCL cohort, 6(18.8%) patients harbored TP53 mutations. TP53 mutations in the absence of del(17p13) were found in 5.0% of MCL cases (1 of 20) compared with 83.3% of MCL cases (5 of 6) with del(17p13). Compared with patients without TP53 mutations, TP53 mutations were associated with risk factors including age, higher serum lactate dehydrogenase, lymphocytosis, high-risk (HR) international prognostic index, HR mantle cell lymphoma international prognostic index, complex karyotype, and higher occurrence of TP53 deletions. In contrast, it is found that TP53 mutations were correlated with mutated immunoglobulin heavy-chain variable region status and CD38 negative. TP53 mutations were the significant factors in predicting survival in univariate analysis, but unfortunately they were not the unique variable associated with overall survival by multivariate Cox regression analysis. TP53 mutation was insufficiently an independent prognostic factor in patients with MCL at advanced stage.
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Acknowledgments
This study was supported by National Natural Science Foundation of China (30871104, 30971296, and 81170488), Natural Science Foundation of Jiangsu Province (BK2010584), “Qing Lan” project of Jiangsu Province, “Liu Da Ren Cai Gao Feng” of Jiangsu Province. University Doctoral Foundation of the Ministry of Education of China (20093234110010), the Program for Development of Innovative Research Team in the First Affiliated Hospital of NJMU, and Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.
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Hua-Jie Dong and Li-Tao ZHOU are contributed equally to this work.
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Dong, HJ., Zhou, LT., Fang, C. et al. TP53 mutation is not an independent prognostic factor in patients with mantle cell lymphoma at advanced stage. Med Oncol 29, 2166–2173 (2012). https://doi.org/10.1007/s12032-011-0096-5
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DOI: https://doi.org/10.1007/s12032-011-0096-5