has plasma membrane part capable of adjacent to lymph node macrophage lymph node subcapsular sinus macrophage A lymph node macrophage found in the subcapsular sinus of lymph nodes that participates in sensing, clearance, and antigen presentation of lymph-borne particulate antigens. This macrophage is capable of activating invaraint NKT cells and is CD169-positive. positive regulation of natural killer cell activation Homo sapiens sialoadhesin capsule of lymph node