Abstract:
:Mitochondrial genome instability has recently been demonstrated in a wide variety of human tumours and is implicated in the development of the myelodysplastic syndromes, a heterogeneous group of haematological disorders with an increased risk of malignant transformation. We therefore investigated the incidence of somatic mitochondrial DNA (mtDNA) mutations in patients with adult-onset leukaemia. We sequenced the entire mitochondrial genome from both normal tissue (buccal epithelial cells) and the leukaemia from 24 patients with adult-onset leukaemia. Somatic mtDNA mutation was present in nine individuals ( approximately 40%) and in each case the tumour genome differed from the normal genome sequence by a single sequence change. Using PCR-RFLP analysis and real-time PCR, we have studied in detail the mutation present in one patient with acute lymphatic leukaemia, demonstrating that the mutation is associated specifically with the leukaemia.
journal_name
Leukemiajournal_title
Leukemiaauthors
He L,Luo L,Proctor SJ,Middleton PG,Blakely EL,Taylor RW,Turnbull DMdoi
10.1038/sj.leu.2403146subject
Has Abstractpub_date
2003-12-01 00:00:00pages
2487-91issue
12eissn
0887-6924issn
1476-5551pii
2403146journal_volume
17pub_type
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