Single-cell exome sequencing and monoclonal evolution of a JAK2-negative myeloproliferative neoplasm

Cell. 2012 Mar 2;148(5):873-85. doi: 10.1016/j.cell.2012.02.028.

Abstract

Tumor heterogeneity presents a challenge for inferring clonal evolution and driver gene identification. Here, we describe a method for analyzing the cancer genome at a single-cell nucleotide level. To perform our analyses, we first devised and validated a high-throughput whole-genome single-cell sequencing method using two lymphoblastoid cell line single cells. We then carried out whole-exome single-cell sequencing of 90 cells from a JAK2-negative myeloproliferative neoplasm patient. The sequencing data from 58 cells passed our quality control criteria, and these data indicated that this neoplasm represented a monoclonal evolution. We further identified essential thrombocythemia (ET)-related candidate mutations such as SESN2 and NTRK1, which may be involved in neoplasm progression. This pilot study allowed the initial characterization of the disease-related genetic architecture at the single-cell nucleotide level. Further, we established a single-cell sequencing method that opens the way for detailed analyses of a variety of tumor types, including those with high genetic complex between patients.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Clonal Evolution*
  • Exome
  • Gene Expression Profiling*
  • Genome, Human
  • High-Throughput Nucleotide Sequencing / methods*
  • Humans
  • Janus Kinase 2 / genetics*
  • Male
  • Middle Aged
  • Mutation
  • Myeloproliferative Disorders / genetics*
  • Myeloproliferative Disorders / pathology*
  • Single-Cell Analysis / methods*
  • Thrombocythemia, Essential / genetics*

Substances

  • Janus Kinase 2