Table 1.

Studied Colorectal Cancer Cell Lines, PIK3CA Copy Number, Mutation, and Surviving Fraction at 2 Gy Radiation Dose (SF2).

Cell strain	PIK3CA copy number	PIK3CA gene mutation	SF2 (CI 95%)*
HT-29	2	Yes	0.68 (0.62–0.75)
DLD-1	2	Yes	0.61 (0.58–0.65)
HCT-116	2	Yes	0.54 (0.50–0.58)
CaCo-2	2	No	0.45 (0.40–0.50)
SW480	3	No	0.47 (0.44–0.53)
HCT-15	6	Yes	0.45 (0.42–0.48)
Colo-320	8	No	0.34 (0.31–0.37)
LoVo	10	No	0.30 (0.27–0.33)

* CI 95%: 95% confidence interval.