CD79a (JCB117)

Anti-CD79a is a B-cell marker that is generally used to complement CD20. This antibody will stain many of the same lymphomas as CD20, but also is more likely to stain precursor B-lymphoid leukemias than CD20. Anti-CD79a also stains more cases of plasma cell myeloma and occasionally some types of endothelial cells as well. Anti-CD79a will stain many cases of acute promyelocytic leukemia (FAB-M3), but only rarely stains other types of myeloid leukemia.