ESTABLISHMENT OF A CONTINUOUS CELL-LINE FROM A HUMAN CARCINOID OF THESMALL-INTESTINE (KRJ-I) - CHARACTERIZATION AND EFFECTS OF 5-AZACYTIDINE ON PROLIFERATION
R. Pfragner et al., ESTABLISHMENT OF A CONTINUOUS CELL-LINE FROM A HUMAN CARCINOID OF THESMALL-INTESTINE (KRJ-I) - CHARACTERIZATION AND EFFECTS OF 5-AZACYTIDINE ON PROLIFERATION, International journal of oncology, 8(3), 1996, pp. 513-520
A new continuous cell line from a human malignant carcinoid of the sma
ll intestine (KRJ-I) was established. The cells showed morphological a
nd immunocytochemical features of the tumor of origin and expressed es
trogen receptors. The cells are growing as a suspension, forming multi
cellular aggregates and spheroids. Electron microscopy confirmed the p
resence of neuroendocrine granules. Dose-dependent growth inhibition w
as observed after incubation with 5-azacytidine. Cytogenetic analyses
of the tumor of origin, the cell line KRJ-I and a liver metastasis KRJ
-II revealed clonal tetraploidy and clonal loss of the Y-chromosome an
d chromosome 19.