Preliminary analysis of mutations in exon 5 of IkappaBalpha gene in Hodgkin lymphoma
2005
To study the mutations in exon 5 of IkappaBalpha gene and their significance in Hodgkin lymphoma.CD30-positive Reed-Sternberg cells and surrounding reactive lymphocytes were selected by laser microdissection technology from 6 microm-thick histologic sections of 7 Hodgkin lymphoma cells studied. Genomic DNA of these cells was extracted according to Qiagen micro DNAkit guide. Semi-nested polymerase chain reaction (PCR) and direct DNA sequencing were used to analyze exon 5 of IkappaBalpha gene.A mutation in exon 5 was identified in 3 of the 7 Hodgkin lymphoma cases. No mutation found in the surrounding reactive lymphocytes. The mutation site was located at codon 2084 (T-A, NT_026437), resulting in formation of a stop codon.The mutation identified in exon 5 of the IkappaBalpha gene in Hodgkin lymphoma may play a role in the pathogenesis of Hodgkin lymphoma.
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