Grieb, Paweł ; Skierski, Janusz ; Jagielski, Janusz ; Ryba, Mirosław ; Mossakowski, Mirosław Jan (1929–2001)
A technique of protein-DNA flow cytometry was applied to characterize cell cycling, and to assess the cytotoxicity of cladribine (2-chloro-2’deoxyadenosine) toward seven dissociated cultures of human primary brain tumors (anaplastic astrocytoma and glioblastoma multiforme) grown in vitro from surgical biopsies. Control cytograms were suggestive of that a clonogeneic fraction of the cell population consists mainly of cells with low protein content, which do not require increase in protein content before entering the S phase of the cell cycle. Following 24 or 48 hours exposure to cladribine, 1 nM -1 M, no cytotoxic effect was evident in 4 cultures, whereas in two cases dose-dependent progressive block of the phaseof the cell cycle was noted. In one case a massive cytotoxic effect resulted in disintegration of culture exposed to 100 nM ofthe drug. However, the treatment with cladribine was ineffective in a patient bearing the tumor which was the source forthe last culture, suggesting that cytotoxicity in vitro may not be predictive of clinical response.
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Mossakowski Medical Research Institute PAS
Library of the Mossakowski Medical Research Institute PAS
Feb 1, 2022
May 30, 2019
137
https://rcin.org.pl./publication/94227
Matyja, Ewa Grieb, Paweł Ryba, Mirosław Jagielski, Janusz Mossakowski, Mirosław Jan (1929–2001)
Matyja, Ewa Grieb, Paweł Ryba, Mirosław Jagielski, Janusz Mossakowski, Mirosław Jan (1929–2001)
Mossakowski, Mirosław Jan (1929–2001)
Mossakowski, Mirosław Jan (1929–2001)
Mossakowski, Mirosław Jan (1929–2001)
Mossakowski, Mirosław Jan (1929–2001)