Journal
BRITISH JOURNAL OF HAEMATOLOGY
Volume 166, Issue 4, Pages 566-570Publisher
WILEY
DOI: 10.1111/bjh.12898
Keywords
alloreactivity potential; stem cell transplant; whole exome sequencing; graft-versus-host disease; single nucleotide polymorphism
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Funding
- Virginia's Commonwealth Health Research Board
- VCU, Massey Cancer Center pilot project grant
- Commonwealth Health Research Board [236-11-13]
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Whole exome sequencing (WES) was performed on stem cell transplant donor-recipient (D-R) pairs to determine the extent of potential antigenic variation at a molecular level. In a small cohort of D-R pairs, a high frequency of sequence variation was observed between the donor and recipient exomes independent of human leucocyte antigen (HLA) matching. Nonsynonymous, nonconservative single nucleotide polymorphisms were approximately twice as frequent in HLA-matched unrelated, compared with related D-R pairs. When mapped to individual chromosomes, these polymorphic nucleotides were uniformly distributed across the entire exome. In conclusion, WES reveals extensive nucleotide sequence variation in the exomes of HLA-matched donors and recipients.
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