Abstract
Therapeutic discovery for mantle cell lymphoma (MCL) has been hindered by a lack of preclinical mouse models that recapitulate human disease. In this issue, Pieters and colleagues (2021. J. Exp. Med.https://doi.org/10.1084/jem.20202280) establish a novel mouse model of MCL driven by overexpression of cyclin D2 and identify fetal-derived B1a cells as putative cell of origin for MCL.
Funding Information
  • Pew Charitable Trusts
  • Hellman Fellows Award
  • National Heart, Lung, and Blood Institute (R01HL147081, K01 HL130753)