Percentage release of ASOND and doxorubicin from 5 mg of drug-loaded nanoparticles during 15 hours in PBS and cytosol simulated medium using DTT. (A) Percentage release of ASOND, (B) Percentage release of doxorubicin. The release data are mean ± SD for each formulation at different time points indicated (n = 4).
Abbreviations: ASOND, antisense oligonucleotide; DOX, doxorubicin; NAC-C, N-acetyl cysteine-chitosan; NAP-C, N-acetyl penicillamine-chitosan; LMWC, low-molecular- weight chitosan; RPMI, Roswell Park Memorial Institute medium; FBS, fetal bovine serum; PBS, phosphate buffered saline; DTT, threo-1,4-dimercapto-2,3- butandiol; SD, standard deviation.