A newly established human lymphoma cell line, FL-18, carrying a 14;18 translocation.

A new human cell line named FL-18, carrying a 14;18 translocation [t(14;18)(q32;q21)], was established from a Japanese patient with follicular small cleaved cell lymphoma. The established FL-18 cells had monoclonal surface immunoglobulins (IgG-kappa) and were negative for Epstein-Barr virus nuclear antigens. The high-resolution banding technique indicated the breakpoints of chromosomes 14 and 18 involved in the characteristic 14;18 translocation to be at sub-bands 14q32.3 and 18q21.3, respectively. The FL-18 cell line should be useful for studying oncogenic events associated with 14;18 translocation and karyotype evolution.