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- Title
Comparison of two real-time quantitative polymerase chain reaction strategies for minimal residual disease evaluation in lymphoproliferative disorders: correlation between immunoglobulin gene mutation load and real-time quantitative polymerase chain reaction performance
- Authors
Della Starza, Irene; Cavalli, Marzia; Del Giudice, Ilaria; Barbero, Daniela; Mantoan, Barbara; Genuardi, Elisa; Urbano, Marina; Mannu, Claudia; Gazzola, Anna; Ciabatti, Elena; Guarini, Anna; Foà, Robin; Galimberti, Sara; Piccaluga, Pierpaolo; Gaidano, Gianluca; Ladetto, Marco; Monitillo, Luigia
- Abstract
We compared two strategies for minimal residual disease evaluation of B-cell lymphoproliferative disorders characterized by a variable immunoglobulin heavy chain ( IGH) genes mutation load. Twenty-five samples from chronic lymphocytic leukaemia ( n = 18) or mantle cell lymphoma ( n = 7) patients were analyzed. Based on IGH variable region genes, 22/25 samples carried >2% mutations, 20/25 > 5%. In the IGH joining region genes, 23/25 samples carried >2% mutations, 18/25 > 5%. Real-time quantitative polymerase chain reaction was performed on IGH genes using two strategies: method A utilizes two patient-specific primers, whereas method B employs one patient-specific and one germline primer, with different positions on the variable, diversity and joining regions. Twenty-three samples (92%) resulted evaluable using method A, only six (24%) by method B. Method B poor performance was specifically evident among mutated IGH variable/joining region cases, although no specific mutation load above, which the real-time quantitative polymerase chain reaction failed was found. The molecular strategies for minimal residual disease evaluation should be adapted to the B-cell receptor features of the disease investigated. Copyright © 2013 John Wiley & Sons, Ltd.
- Publication
Hematological Oncology, 2014, Vol 32, Issue 3, p133
- ISSN
0278-0232
- Publication type
Article
- DOI
10.1002/hon.2095