Reconstructing the Lineage Histories and Differentiation Trajectories of Individual Cancer Cells in Myeloproliferative Neoplasms

Cell Stem Cell. 2021 Mar 4;28(3):514-523.e9. doi: 10.1016/j.stem.2021.02.001. Epub 2021 Feb 22.


Some cancers originate from a single mutation event in a single cell. Blood cancers known as myeloproliferative neoplasms (MPNs) are thought to originate when a driver mutation is acquired by a hematopoietic stem cell (HSC). However, when the mutation first occurs in individuals and how it affects the behavior of HSCs in their native context is not known. Here we quantified the effect of the JAK2-V617F mutation on the self-renewal and differentiation dynamics of HSCs in treatment-naive individuals with MPNs and reconstructed lineage histories of individual HSCs using somatic mutation patterns. We found that JAK2-V617F mutations occurred in a single HSC several decades before MPN diagnosis-at age 9 ± 2 years in a 34-year-old individual and at age 19 ± 3 years in a 63-year-old individual-and found that mutant HSCs have a selective advantage in both individuals. These results highlight the potential of harnessing somatic mutations to reconstruct cancer lineages.

Keywords: JAK2; blood cancer; lineage tree; myeloproliferative neoplasm; single cell sequencing; stem cell dynamics.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Cell Differentiation
  • Child
  • Hematopoietic Stem Cells
  • Humans
  • Janus Kinase 2 / genetics
  • Middle Aged
  • Mutation / genetics
  • Myeloproliferative Disorders* / genetics
  • Neoplasms*
  • Young Adult


  • Janus Kinase 2