Abstract：
:Molecular cloning of immunoglobulin heavy chain (IGH) translocation breakpoints identifies genes of biological importance in the development of normal and malignant B cells. Long-distance inverse PCR (LDI-PCR) was first applied to amplification of IGH gene translocations targeted to the joining (IGHJ) regions. We report here successful amplification of the breakpoint of IGH translocations targeted to switch (IGHS) regions by LDI-PCR. To detect IGHS translocations, Southern blot assays using 5' and 3' switch probes were performed. Illegitimate Smu rearrangements were amplified from the 5' end (5'Smu LDI-PCR) from the alternative derivative chromosome, and those of Sgamma or Salpha were amplified from the 3' end (3'Sgamma or 3'alpha LDI-PCR) from the derivative chromosome 14. Using a combination of these methods, we have succeeded in amplifying IGHS translocation breakpoints involving FGFR3/MMSET on 4p16, BCL6 on 3q27, MYC on 8q24, IRTA1 on 1q21 and PAX5 on 9p13 as well as BCL11A on 2p13 and CCND3 on 6p21. The combination of LDI-PCR for IGHJ and IGHS allows rapid molecular cloning of almost all IGH gene translocation breakpoints.
journal_name
Leukemiajournal_title
Leukemiaauthors
Sonoki T,Willis TG,Oscier DG,Karran EL,Siebert R,Dyer MJdoi
10.1038/sj.leu.2403500subject
Has Abstractpub_date
2004-12-01 00:00:00pages
2026-31issue
12eissn
0887-6924issn
1476-5551pii
2403500journal_volume
18pub_type
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