title: Establishment of a human cell line (B-25F) derived from a fibroma of buccal epithelium.
abstract: A new cell line (B-25F) obtained from a benign polypoid fibrous lesion of the mucosa of oral cavity is described. The cells at first grew in suspension but after a month of cultivation they began to adhere and subsequently formed a monolayer typical for fibroblastoid cells. Population doubling time both in lower and higher passages was 60 h. Electron microscopy studies failed to detect any viral particles or mycoplasmas. A comparison of cell surface glycoproteins of fibroblasts (B-41FB), fibroma cells (B-25F), and fibrosarcoma cells (B-6FS) was made. These lines share common traits in their surface membranes although distinct differences among the individual lines could be detected. Karyological analysis showed that 64% of cells contained 46 chromosomes. This number veiled both diploid and pseudodiploid karyotypes. An aberrant chromosome, t(13;18?) was found. For isoenzyme comparison of B-41FB, B-25F, B-6FS, and HeLa cell lines the mobility of lactate dehydrogenase (LDH) and glucose-6-phosphate dehydrogenase (G-6-PD) was employed. All these lines had LDH patterns of human cells, and a G-6-PD pattern of phenotype B except that of HeLa cells that had phenotype A.
mesh_terms: D000328:Adult; D002460:Cell Line; D002875:Chromosomes; D005260:Female; D005350:Fibroma / Q000032:analysis / Q000235:genetics / Q000473:pathology*; D006023:Glycoproteins / Q000032:analysis; D006801:Humans; D007527:Isoenzymes / Q000032:analysis; D009062:Mouth Neoplasms / Q000032:analysis / Q000235:genetics / Q000473:pathology*
chemical_list: D006023:Glycoproteins; D007527:Isoenzymes