Tissue-Tek Genie®

Clone: EP32
Host clonality: rabbit monoclonal
Control tissue: skin, gastrointestinal tract, melanoma
Staining pattern: cytoplasmic and nuclear
Regulatory status: IVD, FDA Class I
Product code: 8442-C010: RTU, 10 capsules; 1 pack
8442-M250: RTU, 1 cartridge, 250 tests; 1 unit


S100 is a multigene family of calcium binding proteins. S100B is one member of the S100 family and is expressed in glial cells of nervous system, melanocytes, chondrocytes, and adipocytes. The antibody labels S100B in normal and neoplastic cells.
Tissue-Tek Genie<sup>&reg;</sup><br /> anti-S100B Strong staining in malignant melanoma.

Strong staining of macrophages, Schwann cells, and ganglionic cells in muscularis propria and submucosa in appendix.

No staining of columnar epithelial cells in colon adenocarcinoma, but positive staining of macrophages in supporting stroma.
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