Tissue-Tek Genie®

Clone: L26
Host clonality: mouse monoclonal
Control tissue: tonsil
Staining pattern: membraneous
Regulatory status: IVD, FDA Class I
Product code: 8259-C010: RTU, 10 capsules; 1 pack
8259-M250: RTU, 1 cartridge, 250 tests; 1 unit


CD20 is a transmembrane protein expressed on B-cell precursors and mature B-cells, but is lost in plasma cells. CD20 is almost always expressed in B-cell lymphomas.
Tissue-Tek Genie<sup>&reg;</sup><br /> anti-CD20 Strong staining in diffuse large B-chronic lymphatic leukemia.

Negative straining in pre-B acute lymphatic leukemia but positive staining in normal B-cells.
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