Table 1

Camptothecin does not affect fibroblast viability


Cell number


CPT concentration (mol/l)
NS
SD

None (controls)
5904 ± 731
5928 ± 1081
10-9
5614 ± 818
6166 ± 1120
10-8
5424 ± 720
5368 ± 1046
10-7
5051 ± 770
5785 ± 1203
10-6
5142 ± 801
5711 ± 1351

Confluent fibroblasts after 48 h treatment with indicated doses of CPT were trypsinized and cell number was the mean of two counts using a Coulter counter. Values are mean cell numbers ± SEM from five SSc and healthy control pairs after treatment with CPT. CPT = camptothecin; NS, normal fibroblasts; SD, SSc fibroblasts.

Czuwara-Ladykowska et al. Arthritis Res 2001 3:311   doi:10.1186/ar321