Anti-Plasma-Zellen (Hu) from Mouse (LIV3G11,7B18) – unconj.

This antibody recognizes an intra-cytoplasmic antigen, which shows a very high degree of specificity for plasma cells. This antigen is present in normal as well as neoplastic plasma cells. Plasma cells, which are large lymphocytes derived from an antigen-specific B-cell, secrete antibodies and are responsible for humoral immunity. Plasma cells differentiate from B-cells upon stimulation by CD4+ lymphocytes. Plasma cells contain basophilic cytoplasm, their nucleus contains heterochromatin organized in a characteristic cartwheel arrangement. This antibody superbly recognizes normal and neoplastic plasma cells in routine formalin-fixed, paraffin-embedded tissue sections. It is of potential value in identifying myeloma or plasmacytoma in bone marrow or other tissues. It also helps differentiate lympho-plasmacytoid lymphoma from lymphocytic and follicular lymphoma. Note that this antibody is not suitable for staining frozen tissues.