PMID- 31382405 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1999-4923 (Print) IS - 1999-4923 (Electronic) IS - 1999-4923 (Linking) VI - 11 IP - 8 DP - 2019 Aug 2 TI - Sustained Release of Minor-Groove-Binding Antibiotic Netropsin from Calcium-Coated Groove-Rich DNA Particles. LID - 10.3390/pharmaceutics11080387 [doi] LID - 387 AB - Control of the release properties of drugs has been considered a key factor in the development of drug delivery systems (DDSs). However, drug delivery has limitations including cytotoxicity, low loading efficiency, and burst release. To overcome these challenges, nano or micro-particles have been suggested as carrier systems to deliver chemical drugs. Herein, nano-sized DNA particles (DNAp) were manufactured to deliver netropsin, which is known to bind to DNA minor grooves. The rationally designed particles with exposed rich minor grooves were prepared by DNAp synthesis via rolling circle amplification (RCA). DNAp could load large quantities of netropsin in its minor grooves. An analytical method was also developed for the quantification of netropsin binding to DNAp by UV-visible spectrometry. Moreover, controlled release of netropsin was achieved by forming a layer of Ca(2+) on the DNAp (CaDNAp). As a proof of concept, the sustained release of netropsin by CaDNAp highlights the potential of the DNAp-based delivery approach. FAU - Jeon, Hyunsu AU - Jeon H AD - Department of Chemical Engineering, University of Seoul, 163 Seoulsiripdaero, Dongdaemungu, Seoul 02504, Korea. FAU - Nam, Hyangsu AU - Nam H AD - Department of Chemical Engineering, University of Seoul, 163 Seoulsiripdaero, Dongdaemungu, Seoul 02504, Korea. FAU - Lee, Jong Bum AU - Lee JB AD - Department of Chemical Engineering, University of Seoul, 163 Seoulsiripdaero, Dongdaemungu, Seoul 02504, Korea. jblee@uos.ac.kr. LA - eng GR - 2017M3D1A1039423/National Research Foundation of Korea/ PT - Journal Article DEP - 20190802 PL - Switzerland TA - Pharmaceutics JT - Pharmaceutics JID - 101534003 PMC - PMC6724015 OTO - NOTNLM OT - DNA particle (DNAp) OT - calcium OT - minor groove binder OT - netropsin OT - rolling circle amplification (RCA) COIS- The authors declare no conflict of interest. EDAT- 2019/08/07 06:00 MHDA- 2019/08/07 06:01 PMCR- 2019/08/01 CRDT- 2019/08/07 06:00 PHST- 2019/05/20 00:00 [received] PHST- 2019/07/14 00:00 [revised] PHST- 2019/07/22 00:00 [accepted] PHST- 2019/08/07 06:00 [entrez] PHST- 2019/08/07 06:00 [pubmed] PHST- 2019/08/07 06:01 [medline] PHST- 2019/08/01 00:00 [pmc-release] AID - pharmaceutics11080387 [pii] AID - pharmaceutics-11-00387 [pii] AID - 10.3390/pharmaceutics11080387 [doi] PST - epublish SO - Pharmaceutics. 2019 Aug 2;11(8):387. doi: 10.3390/pharmaceutics11080387.