The detection of human B lymphocytes by both light and electron microscopy utilizing colloidal gold labeled anti-immunoglobulin.

Colloidal gold was used to label rabbit anti-goat IgG for the indirect detection of goat anti-human IgD and IgM. Utilizing this technique, surface immunoglobulin was visualized on human blood B lymphocytes at both the light and electron microscopic levels of resolution. By this technique, percentages of lymphocytes were found to closely correlate with those of the standard immunofluorescent procedure. The ease of the procedure along with the clarity of the marker in both light and electron microscopy suggest wide applicability in clinical and research studies of lymphocyte membrane markers.