WM983B Viable Cells

Cells are sterile, validated by short tandem repeat profiling, and are tested as negative for mycoplasma. It is recommended that cell lines are tested for mycoplasma contamination and short tandem repeat (STR) profiling every 10 passages or each time a frozen seed stock is made. See cell culture protocol for additional details. WM983B is a human metastatic melanoma cell line that was established from an inguinal node metastatic site in a 54-year-old male patient. The subject displayed malignant melanoma of polypoid type, level IV with a tumor thickness of 2.5 cm. MW983B line contains the BRAF V600E mutation that causes increased signaling via the extracellular signal-regulated MAPK/ERK kinase pathways to enhance proliferation. WM983B is wild type for PTEN, N-ras, c-KIT, and CDK4. This cell line was derived from the same patient as the cell lines WM983A, WM983B BR, and WM983C. WM983B cells produce xenograft tumors when injected into immunocompromised mice.