ABL tyrosine kinase inhibitor (TKI), imatinib is used for BCR-ABL(+) leukemias. We developed an automatic method utilizing guanine-quenching probes (QP) to detect 17 kinds of mutations frequently observed in imatinib-resistance. Results were obtained from 100μL of whole blood within 90min by this method. Detected mutations were almost identical between QP method and direct sequencing. Furthermore, the mutation-biased PCR (MBP) was added to the QP method to increase sensitivity, resulting earlier detection of T315I mutation which was insensitive to any ABL TKIs. Thus, the QP and MBP-QP may become useful methods for the management of ABL TKI-treated patients.
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| http://dx.doi.org/10.1016/j.canlet.2011.08.009 | DOI Listing |
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