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Desmosome mutation sarcoma

H Kusakabe, S Sakatani, K Yonebayashi, K Kiyokane
A novel epithelioid sarcoma (ES) cell line, designated as ES-OMC-MN, was established from a 44-year-old woman with recurrence and metastasis of ES. The cells were spindle-shaped or polygonal and were positive for cytokeratin and vimentin on immunohistochemical staining. Electron microscopy revealed desmosome-like structures between the cells. These characteristics were also noted in the original tumor. Southern blot analysis of HindIII digests showed an additional 8.0 kb band and an 8.8 kb band in DNA from the cultured cells and the original tumor as well as the peripheral blood cells of the patient, while only an 8...
March 1997: Archives of Dermatological Research
H Nakanishi, R M Taylor, F J Chrest, T Masui, K Utsumi, M Tatematsu, A Passaniti
A hormone-dependent, clonal carcinoma cell line, designated RM22-F5, was derived from a malignant mammary mixed tumor spontaneously arising in an outbred old female Wistar rat. These cells expressed keratin and desmosomal protein and formed epithelial monolayers in a growth factor and hormone-supplemented medium (LHC-8) containing 10% fetal bovine serum (E-type cells). Cells subcultured for 6 to 8 passages in RPMI 1640 medium containing 10% fetal bovine serum without supplements appeared to be fibroblastic and expressed vimentin (F-type cells)...
January 15, 1995: Cancer Research
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