Role of neoplastic monocyte-derived fibrocytes in primary myelofibrosis Academic Article uri icon


MeSH Major

  • Fibroblasts
  • Monocytes
  • Primary Myelofibrosis


  • Primary myelofibrosis (PMF) is a fatal neoplastic disease characterized by clonal myeloproliferation and progressive bone marrow (BM) fibrosis thought to be induced by mesenchymal stromal cells stimulated by overproduced growth factors. However, tissue fibrosis in other diseases is associated with monocyte-derived fibrocytes. Therefore, we sought to determine whether fibrocytes play a role in the induction of BM fibrosis in PMF. In this study, we show that BM from patients with PMF harbors an abundance of clonal, neoplastic collagen- and fibronectin-producing fibrocytes. Immunodeficient mice transplanted with myelofibrosis patients' BM cells developed a lethal myelofibrosis-like phenotype. Treatment of the xenograft mice with the fibrocyte inhibitor serum amyloid P (SAP; pentraxin-2) significantly prolonged survival and slowed the development of BM fibrosis. Collectively, our data suggest that neoplastic fibrocytes contribute to the induction of BM fibrosis in PMF, and inhibiting fibrocyte differentiation with SAP may interfere with this process.

publication date

  • January 2016



  • Academic Article



  • eng

PubMed Central ID

  • PMC4995084

Digital Object Identifier (DOI)

  • 10.1084/jem.20160283

PubMed ID

  • 27481130

Additional Document Info

start page

  • 1723

end page

  • 40


  • 213


  • 9