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  • Kontro, M (author)

HOX gene expression predicts response to BCL-2 inhibition in acute myeloid leukemia

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2016-08-08
  • Springer Science and Business Media LLC,2017
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-310826
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-310826URI
  • https://doi.org/10.1038/leu.2016.222DOI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:135217503URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Inhibitors of B-cell lymphoma-2 (BCL-2) such as venetoclax (ABT-199) and navitoclax (ABT-263) are clinically explored in several cancer types, including acute myeloid leukemia (AML), to selectively induce apoptosis in cancer cells. To identify robust biomarkers for BCL-2 inhibitor sensitivity, we evaluated the ex vivo sensitivity of fresh leukemic cells from 73 diagnosed and relapsed/refractory AML patients, and then comprehensively assessed whether the responses correlated to specific mutations or gene expression signatures. Compared with samples from healthy donor controls (nonsensitive) and chronic lymphocytic leukemia (CLL) patients (highly sensitive), AML samples exhibited variable responses to BCL-2 inhibition. Strongest CLL-like responses were observed in 15% of the AML patient samples, whereas 32% were resistant, and the remaining exhibited intermediate responses to venetoclax. BCL-2 inhibitor sensitivity was associated with genetic aberrations in chromatin modifiers, WT1 and IDH1/IDH2. A striking selective overexpression of specific HOXA and HOXB gene transcripts were detected in highly BCL-2 inhibitor sensitive samples. Ex vivo responses to venetoclax showed significant inverse correlation to β2-microglobulin expression and to a lesser degree to BCL-XL and BAX expression. As new therapy options for AML are urgently needed, the specific HOX gene expression pattern can potentially be used as a biomarker to identify venetoclax-sensitive AML patients for clinical trials.Leukemia advance online publication, 2 September 2016; doi:10.1038/leu.2016.222.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Kumar, A (author)
  • Majumder, M M (author)
  • Eldfors, S (author)
  • Parsons, A (author)
  • Pemovska, T (author)
  • Saarela, J (author)
  • Yadav, B (author)
  • Malani, D (author)
  • Fløisand, Y (author)
  • Höglund, MartinUppsala universitet,Hematologi(Swepub:uu)martinhl (author)
  • Remes, K (author)
  • Gjertsen, B T (author)
  • Kallioniemi, OKarolinska Institutet (author)
  • Wennerberg, K (author)
  • Heckman, C A (author)
  • Porkka, K (author)
  • Uppsala universitetHematologi (creator_code:org_t)

Related titles

  • In:Leukemia: Springer Science and Business Media LLC31:2, s. 301-3090887-69241476-5551

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