TABLE 1

PCNA Labeling Index in Tumors After Radiotherapy and PDT

GroupSCCVII tumor treated with 20-Gy irradiationHeLa tumor treated with PDT
Control53.2 ± 8.782.0 ± 8.6
6 h38.5 ± 5.3*ND
24 h36.8 ± 5.3*13.5 ± 12.7*

  • ↵* P < 0.05 vs. untreated control group.

  • ND = not done.

  • Data are expressed as mean ± SD.