. Author manuscript; available in PMC: 2014 Aug 22.

Published in final edited form as: Lasers Surg Med. 2012 Sep 27;44(9):746–754. doi: 10.1002/lsm.22082

Table 1. Inhibition of U251 Colony Formation by PCI-PTEN Protamine Sulfate (PS) or bPEI Polyplexes as Gene Carrier.

PTEN polyplexes concentration	PCI dark control	PCI 0.5 J/cm²	PCI 0.75 J/cm²
None	100 ± 8.3^a	86 ± 6.7	72 ± 7.1
PS 1.0 mg/ml	98 ± 7.1	27 ± 1.9^b	23 ± 1.8^b
PS 2.0 mg/ml	91 ± 8.2	21 ± 1.8^b	16 ± 1.2^b
bPEI 1.0 mg/ml	80 ± 6.3	45 ± 3.9^b	36 ± 2.6^b
bPEI 2.0 mg/ml	63 ± 4.7^b	28 ± 1.9^b	18 ± 1.4^b

PS, protamine sulfate; bPEI, branched polyethylenimine.

Average value ± SE as a % of non-treated dark control.

Significant inhibition compared to control.