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  • Anande, GovardhanUniv New South Wales Sydney, Adult Canc Program, Lowy Canc Res Ctr, Sydney, NSW, Australia.;Univ New South Wales Sydney, Prince Wales Clin Sch, Sydney, NSW, Australia. (författare)

RNA Splicing Alterations Induce a Cellular Stress Response Associated with Poor Prognosis in Acute Myeloid Leukemia

  • Artikel/kapitelEngelska2020

Förlag, utgivningsår, omfång ...

  • 2020
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-419791
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-419791URI
  • https://doi.org/10.1158/1078-0432.CCR-20-0184DOI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:144226570URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

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Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Purpose: RNA splicing is a fundamental biological process that generates protein diversity from a finite set of genes. Recurrent somatic mutations of splicing factor genes are common in some hematologic cancers but are relatively uncommon in acute myeloid leukemia (AML, < 20% of patients). We examined whether RNA splicing differences exist in AML, even in the absence of splicing factor mutations.Experimental Design: We developed a bioinformatics pipeline to study alternative RNA splicing in RNA-sequencing data from large cohorts of patients with AML.Results: We have identified recurrent differential alternative splicing between patients with poor and good prognosis. These splicing events occurred even in patients without any discernible splicing factor mutations. Alternative splicing recurrently occurred in genes with specific molecular functions, primarily related to protein translation. Developing tools to predict the functional impact of alternative splicing on the translated protein, we discovered that approximately 45% of the splicing events directly affected highly conserved protein domains. Several splicing factors were themselves misspliced and the splicing of their target transcripts were altered. Studying differential gene expression in the same patients, we identified that alternative splicing of protein translation genes in ELNAdv patients resulted in the induction of an integrated stress response and upregulation of inflammation-related genes. Finally, using machine learning techniques, we identified a splicing signature of four genes which refine the accuracy of existing risk prognosis schemes and validated it in a completely independent cohort.Conclusions: Our discoveries therefore identify aberrant alternative splicing as a molecular feature of adverse AML with clinical relevance.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Deshpande, Nandan P.Univ New South Wales Sydney, Sch Biotechnol & Biomol Sci, Sydney, NSW, Australia. (författare)
  • Mareschal, SylvainKarolinska Univ Hosp, Hematol Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Med, Stockholm, Sweden. (författare)
  • Batcha, Aarif M. N.Ludwig Maximilians Univ Munchen, Fac Med, Inst Med Data Proc Biometr & Epidemiol, Munich, Germany.;Ludwig Maximilians Univ Munchen, Data Integrat Future Med, Munich, Germany. (författare)
  • Hampton, Henry R.Univ New South Wales Sydney, Adult Canc Program, Lowy Canc Res Ctr, Sydney, NSW, Australia.;Univ New South Wales Sydney, Prince Wales Clin Sch, Sydney, NSW, Australia. (författare)
  • Herold, TobiasLudwig Maximilians Univ Munchen, Univ Hosp, Dept Med 3, Munich, Germany.;Helmholtz Zentrum Munchen, Res Unit Apoptosis Hematopoiet Stem Cells, German Res Ctr Environm Hlth, Munich, Germany. (författare)
  • Lehmann, SörenKarolinska Institutet,Uppsala universitet,Hematologi,Karolinska Univ Hosp, Hematol Ctr, Stockholm, Sweden.;Karolinska Inst, Dept Med, Stockholm, Sweden.(Swepub:uu)sorle534 (författare)
  • Wilkins, Marc R.Univ New South Wales Sydney, Sch Biotechnol & Biomol Sci, Sydney, NSW, Australia. (författare)
  • Wong, Jason W. H.Univ New South Wales Sydney, Adult Canc Program, Lowy Canc Res Ctr, Sydney, NSW, Australia.;Univ New South Wales Sydney, Prince Wales Clin Sch, Sydney, NSW, Australia.;Univ Hong Kong, Li Ka Shing Fac Med, Sch Biomed Sci, Hong Kong, Peoples R China. (författare)
  • Unnikrishnan, AshwinUniv New South Wales Sydney, Adult Canc Program, Lowy Canc Res Ctr, Sydney, NSW, Australia.;Univ New South Wales Sydney, Prince Wales Clin Sch, Sydney, NSW, Australia. (författare)
  • Pimanda, John E.Univ New South Wales Sydney, Adult Canc Program, Lowy Canc Res Ctr, Sydney, NSW, Australia.;Univ New South Wales Sydney, Prince Wales Clin Sch, Sydney, NSW, Australia.;Univ New South Wales Sydney, Sch Med Sci, Dept Pathol, Sydney, NSW, Australia.;Prince Wales Hosp, Dept Haematol, Sydney, NSW, Australia. (författare)
  • Univ New South Wales Sydney, Adult Canc Program, Lowy Canc Res Ctr, Sydney, NSW, Australia.;Univ New South Wales Sydney, Prince Wales Clin Sch, Sydney, NSW, Australia.Univ New South Wales Sydney, Sch Biotechnol & Biomol Sci, Sydney, NSW, Australia. (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Clinical Cancer Research26:14, s. 3597-36071078-04321557-3265

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