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. 2013 Aug 26;8:3271–3283. doi: 10.2147/IJN.S47597

Figure 9.

Figure 9

In vitro gene silencing. The percent luciferase activity of SMMC-7721 after transfection with (A) TLPD-FPM, NTLPD-FPM and (B) TLPD-FPC, NTLPD-FPC at a concentration of 250 nM or 500 nM siRNA. The data are shown as the mean ± standard deviation (n = 3). *P < 0.05.

Abbreviations: TLPD-FPM, targeted LPD when linker PEG was DSPE-PEG-MAL; TLPD-FPC, targeted LPD when linker PEG was DSPE-PEG-COOH; NTLPD-FPM, nontargeted control LPD when linker PEG was DSPE-PEG-MAL; NTLPD-FPC, nontargeted control LPD when linker PEG was DSPE-PEG-COOH; LUC, luciferase; NC, negative control siRNA; DSPE-PEG-MAL, 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[maleimide(polyethylene glycol)-2000] (ammonium salt); DSPE-PEG-COOH, distearoyl-N-(3-carboxypropionoyl poly(ethylene glycol) succinyl)phosphatidylethanolamine.