Abstract:CCR7-expressing mature DCs enriched in immunoregulatory molecules (mRegDCs), such as PD-L1, have been identified in tumours and draining lymph nodes (dLN), but their spatiotemporal dynamics and role in anti-tumour immune responses remain unclear. Using photoconvertible mice to precisely track DC migration, we found that mRegDCs comprised the dominant DC population arriving in the dLN, but a subset remained tumour-resident despite CCR7 expression. These tumour-retained mRegDCs were phenotypically and transcript… Show more
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