Distinct ontogenetic lineages dictate cDC2 heterogeneity.

ABSTRACT: Conventional dendritic cells (cDCs) include functionally and phenotypically diverse populations, such as cDC1s and cDC2s. The latter population has been variously subdivided into Notch-dependent cDC2s, KLF4-dependent cDC2s, T-bet⁺ cDC2As and T-bet^- cDC2Bs, but it is unclear how all these subtypes are interrelated and to what degree they represent cell states or cell subsets. All cDCs are derived from bone marrow progenitors called pre-cDCs, which circulate through the blood to colonize peripheral tissues. Here, we identified distinct mouse pre-cDC2 subsets biased to give rise to cDC2As or cDC2Bs. We showed that a Siglec-H⁺ pre-cDC2A population in the bone marrow preferentially gave rise to Siglec-H^- CD8α⁺ pre-cDC2As in tissues, which d

SUBMITTER: Minutti CM 

PROVIDER: S-EPMC10907303 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature