Abstract
We developed a polyamidoamine (PAMAM) conjugated disulfide-linked chitosan (dsCS-PAM) for nonviral gene delivery. At weight ratio of 128, dsCS and dsCS-PAM showed positive zeta potential of around 9.5 mV and 14.5 mV, respectively, demonstrating their ability to form complexes with plasmid DNA (pDNA) for cell transfection. CS-PAM and dsCS-PAM formed complexes with pDNA in a reducing environment containing 5 mM DLdithiothreitol (DTT) at weight ratio 32 and 16, respectively. PAMAM conjugated chitosan derivatives, dsCS-PAM and CS-PAM, showed higher in vitro transfection efficiency than unconjugated derivatives dsCS and CS. Approximately 80% of A549 and 293 cells were viable in the presence of up to 100 μg/mL of dsCS-PAM. The results of this study demonstrate that dsCS-PAM has the potential to be a safe gene delivery carrier.
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References
G. D. Schmidt-Wolf and I. G. H. Schmidt-Wolf, Trends Mol. Med., 9, 67 (2003).
V. Vijayanathan, T. Thomas, and T. J. Thomas, Biochemistry, 41, 14085 (2002).
S. Mao, W. Sun, and T. Kissel, Adv. Drug Deliv. Rev., 62, 12 (2010).
I. Kim, S. Seo, H. Moon, M. Yoo, I. Park, B. Kim, and C. Cho, Biotechnol. Adv., 26, 1 (2008).
M. Huang, C. Fong, E. Khor, and L. Lim, J. Control. Release, 106, 391 (2005).
C. Choi, D. Kim, M. Jang, T. Kim, M. Jang, and J. Nah, J. Appl. Polym. Sci., 102, 3545 (2006).
F. Kong, G. Liu, B. Sun, S. Zhou, A. Zuo, R. Zhao, and D. Liang, Int. J. Pharm., 422, 445 (2012).
W. E. Rudzinski and T. M. Aminabhavi, Int. J. Pharm., 399, 1 (2010).
P. Holzerny, B. Ajdini, W. Heusermann, K. Bruno, M. Schuleit, L. Meinel, and Keller, J. Control. Release, 157, 297 (2012).
M. Lavertu, S. Méthot, N. Tran-Khanh, and M. D. Buschmann, Biomaterials, 27, 4815 (2006).
C. Wiegand, D. Winter, and U. C. Hipler, Skin Pharmacol. Physiol., 23, 164 (2010).
P. Opanasopit, J. Tragulpakseerojn, A. Apirakaramwong, T. Ngawhirunpat, and T. Rojanarata, Int. J. Pharm., 410, 161 (2006).
R. M. Ramesan and C. P. Sharma, Nanomedicine, 7, 5 (2012).
H. Jiang, Y. Kim, R. Arote, J. Nah, M. Cho, Y. Choi, T. Akaike, and C. Cho, J. Control. Release, 117, 273 (2007).
K. Wong, G. Sun, X Zhang, H. Dai, Y. Liu, C. He, and K. W. Leong, Bioconjug. Chem., 17, 152 (2006).
K. Sarkar and P. P. Kundu, Macromolecules, 51, 859 (2012).
Q. Peng, Z. Zhong, and R. Zhuo, Bioconjug. Chem., 19, 499 (2008).
Q. Zhao, J. Chen, M. Han, W. Liang, Y. Tabata, and J. Gao, J. Biosci. Bioeng., 105, 65 (2008).
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Nam, K., Park, J.W., Bark, H. et al. Enhanced gene delivery system using disulfide-linked chitosan immobilized with polyamidoamine. Macromol. Res. 22, 370–376 (2014). https://doi.org/10.1007/s13233-014-2052-7
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DOI: https://doi.org/10.1007/s13233-014-2052-7