Summary
Autoradiographic investigation of the cell cycle of 12 diploid and 12 abnormal human fibroblast strains was carried out. Two cell strains (trisomy 7 and monosomy 21) derived from spontaneous abortuses showed prolongation of the G2 period accompanied by the shortening of the S period. Other cytogenetically abnormal embryonic strains (trisomy 9, 14 and triploidy) did not deviate from the diploid pattern. Three cell strains (LHC-1-70, LHC-6-70, LHC-411) derived from the patients with karyotypes 47,XXX, 47,XY,+18 and 46,XX,5p—respectivly had embryonic types of proliferation with a short G2 period. In two other strains from the patients with Down's syndrom the G2 period was prolonged. There was no statistically significant difference in the parameters of the cell cycle between the control and the strains derived from a patient with Klinefelter syndrom and from a male patient with karyotype 46,XX. The modificatory effect of the chromosomal abnormalities on the parameters of cell cycle is discussed.
Zusammenfassung
Der Zellcyclus von 12 normal diploiden und 12 abnormen menschlichen Fibroblasten-Zellinien wurde untersucht. Zwei Zellinien (Trisomie 7 und Monosomie 21) zeigten eine Verlängerung der G2-Phase und eine Verkürzung der S-Phase. Zellinien (Trisomie 9, 14 und Triploidie) wichen nicht von der Norm ab. Drei Zellinien (47,XXX; 47,XY,+18; 46,XX,5p-) zeigten eine Verkürzung von G2. G2 war dagegen verlängert bei zwei Zellinien von Down-Syndrom. Keine Abweichung fand sich bei einem Klinefelter-Patienten und einem männlichen Probanden mit 46,XX.
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Kukharenko, V.I., Kuliev, A.M., Grinberg, K.N. et al. Cell cycles in human diploid and aneuploid strains. Hum Genet 24, 285–296 (1974). https://doi.org/10.1007/BF00297592
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DOI: https://doi.org/10.1007/BF00297592