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Submicroscopic geno...
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Lundin, CatarinaLund University,Lunds universitet,Avdelningen för klinisk genetik,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Genetics,Department of Laboratory Medicine,Faculty of Medicine,Lund University, Sweden
(författare)
Submicroscopic genomic imbalances in burkitt lymphomas/leukemias : Association with age and further evidence that 8q24/MYC translocations are not sufficient for leukemogenesis
- Artikel/kapitelEngelska2013
Förlag, utgivningsår, omfång ...
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2012-12-08
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Wiley-Blackwell,2013
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:liu-90183
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-90183URI
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https://doi.org/10.1002/gcc.22034DOI
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https://lup.lub.lu.se/record/3347399URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Funding Agencies|Swedish Childhood Cancer Foundation||Swedish Cancer Society||Swedish Research Council||
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Chromosome banding analyses reveal secondary chromosome abnormalities in addition to the MYC translocations t(8;14)(q24;q32), t(8;22)(q24;q11), and t(2;8)(p11;q24) in 60%80% of Burkitt lymphomas/leukemias (BL). The high incidence of such aberrations indicates that additional changes are important, perhaps necessary, for malignant transformation, i.e., the 8q24/MYC rearrangements may not be sufficient. To investigate this possibility, we performed single nucleotide polymorphism (SNP) array analysis on 20 cases of 8q24/MYC-positive BL. Nineteen (95%) harbored genomic imbalances; the only case without such aberrations displayed secondary changes by chromosome banding analysis. Thus, all BL cases had abnormalities in addition to the 8q24 translocation. The adult cases harbored more changes (median 3; range 121) than did the childhood cases (median 1.5; range 05) (P = 0.034). Several recurrent aberrations were detected by SNP array analysis, in particular losses of 6q14.1-q22.33, 9p21.3, and 13q14.2-q14.3, gains of 1q23.3-q31.3, chromosome 7, 13q31.3, and partial uniparental isodisomies for 6p12.2-pter, 9p23-pter, and 17p11.2-pter. The molecular genetic consequences of these changes include deletions of the CDKN2A and TP53 genes, and gains/losses of several genes, such as MIR17HG and E2F2K, involved in the MYC pathway. Thus, deregulation of the MYC pathway, both directly through the 8q24/MYC translocation and indirectly through secondary genomic imbalances, may be essential not only for the initiation but also for the progression of BL.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Hjorth, LarsLund University,Lunds universitet,Pediatrik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Paediatrics (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University, Sweden(Swepub:lu)pedi-lhj
(författare)
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Behrendtz, MikaelÖstergötlands Läns Landsting,Barn- och ungdomskliniken i Linköping
(författare)
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Ehinger, MatsLund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University, Sweden(Swepub:lu)efor-meh
(författare)
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Biloglav, AndreaLund University,Lunds universitet,Avdelningen för klinisk genetik,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Genetics,Department of Laboratory Medicine,Faculty of Medicine,Lund University, Sweden(Swepub:lu)klin-aho
(författare)
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Johansson, BertilLund University,Lunds universitet,Avdelningen för klinisk genetik,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Genetics,Department of Laboratory Medicine,Faculty of Medicine,Lund University, Sweden(Swepub:lu)kgen-bjo
(författare)
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Avdelningen för klinisk genetikInstitutionen för laboratoriemedicin
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Genes, Chromosomes and Cancer: Wiley-Blackwell52:4, s. 370-3771045-22571098-2264
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