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[ARMS-PCR combined with capillary electrophoresis can be a sensitive and quantitative method for detection of MYD88-L265P mutation in lymphoma].

OBJECTIVE: To investigate the feasibility of sensitive and quantitative detection of MYD88 gene L265P mutation in lymphoma patients by using ARMS-PCR combined with capillary electrophoresis.

METHODS: ARMS-PCR amplified MYD88 gene was analyzed by capillary electrophoresis in ABI 3730 sequencer; Exon 5 of the same gene was sequenced bi-directionally as reported.

RESULTS: The sensitivity of detection L265P mutations by the ARMS-PCR combined with capillary electrophoresis and direct sequencing was 0.2% and 5%, respectively, according to the detection of the gradient-diluted plasmid standards. The detection rate of 184 patients was 13.59% and 8.28%, respectively (p<0.001). Moreover, the former method can successfully detect the mutation ratio(R2 =0.979), and the repeatabilities (CV=2.86%, 1.94%, 5.49%) are acceptable.

CONCLUSION: ARMS-PCR combined with capillary electrophoresis can quantitatively detect the MYD88 gene L265P mutation, and the detection sensitivity is significantly higher than sanger sequencing. As a supplement to the latter, it can effectively lead to the earlier diagnose and monitoring of minimal residual disease.

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