myeloid leukocyte immature conventional dendritic cell immature myeloid dendritic cell An immature cell of the conventional dendritic cell lineage, characterized by high levels of antigen uptake via endocytosis, macropinocytosis, and phagocytosis, and typically found resident in the tissues. Markers for this cell are CD80-low, CD86-low, and MHC-II-low. conventional dendritic cell Homo sapiens