BCL1/Cyclin D1 is a nuclear protein detectable in formalin-fixed, paraffin-embedded (FFPE) sections and is found in the majority of mantle cell lymphomas. Hairy cell leukemia and plasmacytoma may also express BCL1 with a weaker signal. BCL1 is an oncogene acting as a cell cycle regulator possibly by mediating the growth stimulatory effects of hormone receptor signaling. It has been found to play a major role in both breast and prostate tumorigenesis. Nuclear overexpression of BCL1 has been shown to increase the chance of prostate cancer metastasis to bone, and has been associated with poor prognosis. High nuclear expression of BCL1 is usually associated with poor prognosis.
- A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen type
- One (1) unbaked, unstained slide for H&E staining (required) and two to three (2-3) positively charged unstained slides (all cut at 4-5 microns) for each test/antibody ordered
- Block and slide identifiers should be clearly written and match exactly with the specimen ID and specimen labeling as noted on the requisition.
Storage and Transportation
Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.
88342 x 1 or 88341 x 1; 88361 x 1
Global: 48 hours, Tech-Only (stain only): 24 hours