Cost-effective multiplexing before capture allows screening of 25 000 clinically relevant SNPs in childhood acute lymphoblastic leukemia

Agata Wesolowska, M. D. Dalgaard, L. Borst, Laurent Gautier, M. Bak, Nils Weinhold, B. F. Nielsen, L. R. Helt, Karine Marie Laure Audouze, J Nersting, N. Tommerup, Søren Brunak, Thomas Sicheritz-Pontén, H. Leffers, K. Schmiegelow, Ramneek Gupta

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Genetic variants, including single-nucleotide polymorphisms (SNPs), are key determiners of interindividual differences in treatment efficacy and toxicity in childhood acute lymphoblastic leukemia (ALL). Although up to 13 chemotherapeutic agents are used in the treatment of this cancer, it remains a model disease for exploring the impact of genetic variation due to well-characterized cytogenetics, drug response pathways and precise monitoring of minimal residual disease. Here, we have selected clinically relevant genes and SNPs through literature screening, and on the basis of associations with key pathways, protein-protein interactions or downstream partners that have a role in drug disposition and treatment efficacy in childhood ALL. This allows exploration of pathways, where one of several genetic variants may lead to similar clinical phenotypes through related molecular mechanisms. We have designed a cost-effective, high-throughput capture assay of â¼25â000 clinically relevant SNPs, and demonstrated that multiple samples can be tagged and pooled before genome capture in targeted enrichment with a sufficient sequencing depth for genotyping. This multiplexed, targeted sequencing method allows exploration of the impact of pharmacogenetics on efficacy and toxicity in childhood ALL treatment, which will be of importance for personalized chemotherapy.Leukemia advance online publication, 18 March 2011; doi:10.1038/leu.2011.32.
Original languageEnglish
JournalLeukemia
Volume25
Pages (from-to)1001-1006
ISSN0887-6924
DOIs
Publication statusPublished - 2011

Keywords

  • Target-enrichment
  • Clinically relevant SNPs
  • Childhood acute lymphoblastic leukemia
  • Multiplexed genotyping
  • Next-generation sequencing

Cite this

Wesolowska, A., Dalgaard, M. D., Borst, L., Gautier, L., Bak, M., Weinhold, N., Nielsen, B. F., Helt, L. R., Audouze, K. M. L., Nersting, J., Tommerup, N., Brunak, S., Sicheritz-Pontén, T., Leffers, H., Schmiegelow, K., & Gupta, R. (2011). Cost-effective multiplexing before capture allows screening of 25 000 clinically relevant SNPs in childhood acute lymphoblastic leukemia. Leukemia, 25, 1001-1006. https://doi.org/10.1038/leu.2011.32