CD205 (DEC-205) a C-type lectin of family of macrophage mannose receptors (MMR) is strongly expressed by myeloid dendritic cells and monocytes; weaker by B cells and very low by NK, plasmatoid DC, T cells, cortical epithelial cells. Immunohistochemical staining of C0205 in tissue sections allows the quantitative detection of antigen-presenting cells.
Fixed-embedded human colon cancer
CD21 (CR2, EBV-receptor) is present on mature B cells and follicular dendritic cells (FDCs). This antibody can be used to demonstrate the FDC network in lymphoid tissue. This feature can be useful in examining tissue with germinal centre lesions resulted by disease processes, such as HIV infection, some neoplastic conditions, like 8-cell MALT lymphomas, mantle cell lymphoma, and some T cell lymphomas.
Fixed-embedded human Castleman lymphoma