Absence of Batf3 reveals a new dimension of cell state heterogeneity within conventional dendritic cells
- PMID: 33997687
- PMCID: PMC8105636
- DOI: 10.1016/j.isci.2021.102402
Absence of Batf3 reveals a new dimension of cell state heterogeneity within conventional dendritic cells
Abstract
Conventional dendritic cells (cDCs) are traditionally subdivided into cDC1 and cDC2 lineages. Batf3 is a cDC1-required transcription factor, and we observed that Batf3-/- mice harbor a population of cDC1-like cells co-expressing cDC2-associated surface molecules. Using single-cell RNA sequencing with integrated cell surface protein expression (CITE-seq), we found that Batf3-/- mitotic immature cDC1-like cells showed reduced expression of cDC1 features and increased levels of cDC2 features. In wild type, we also observed a proportion of mature cDC1 cells expressing surface features characteristic to cDC2 and found that overall cDC cell state heterogeneity was mainly driven by developmental stage, proliferation, and maturity. We detected population diversity within Sirpa+ cDC2 cells, including a Cd33+ cell state expressing high levels of Sox4 and lineage-mixed features characteristic to cDC1, cDC2, pDCs, and monocytes. In conclusion, these data suggest that multiple cDC cell states can co-express lineage-overlapping features, revealing a level of previously unappreciated cDC plasticity.
Keywords: Cell Biology; Immunology; Transcriptomics.
© 2021 The Author(s).
Conflict of interest statement
The authors declare no competing interests. S.L. is currently an employee of Boehringer-Ingelheim.
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