Context-Dependent Development of Lymphoid Stroma from Adult CD34(+) Adventitial Progenitors

Research output: Contribution to journalArticle

Authors

  • Katarzyna M Sitnik
  • Kerstin Wendland
  • Holger Weishaupt
  • Heli Uronen-Hansson
  • Knut Kotarsky
  • William W Agace

Colleges, School and Institutes

Abstract

Despite the key role of primary and secondary lymphoid organ stroma in immunity, our understanding of the heterogeneity and ontogeny of these cells remains limited. Here, we identify a functionally distinct subset of BP3(-)PDPN(+)PDGFRβ(+)/α(+)CD34(+) stromal adventitial cells in both lymph nodes (LNs) and thymus that is located within the vascular niche surrounding PDPN(-)PDGFRβ(+)/α(-)Esam-1(+)ITGA7(+) pericytes. CD34(+) adventitial cells developed in late embryonic thymus and in postnatal LNs and in the thymus originated, along with pericytes, from a common anlage-seeding progenitor population. Using lymphoid organ re-aggregate grafts, we demonstrate that adult CD34(+) adventitial cells are capable of differentiating into multiple lymphoid stroma-like subsets including pericyte-, FRC-, MRC-, and FDC-like cells, the development of which was lymphoid environment-dependent. These findings extend the current understanding of lymphoid mesenchymal cell heterogeneity and highlight a role of the CD34(+) adventitia as a potential ubiquitous source of lymphoid stromal precursors in postnatal tissues.

Details

Original languageEnglish
Pages (from-to)2375-2388
Number of pages14
JournalCell Reports
Volume14
Issue number10
Publication statusPublished - 15 Mar 2016