PMID- 19960013 OWN - NLM STAT- MEDLINE DCOM- 20100816 LR - 20211020 IS - 1745-7254 (Electronic) IS - 1671-4083 (Print) IS - 1671-4083 (Linking) VI - 30 IP - 12 DP - 2009 Dec TI - Preparation, characterization, in vivo and in vitro studies of arsenic trioxide Mg-Fe ferrite magnetic nanoparticles. PG - 1688-93 LID - 10.1038/aps.2009.158 [doi] AB - AIM: MgFe(2)O(4) magnetic nanoparticle composed of As(2)O(3) (As(2)O(3)-MNPs) were prepared and their in vitro and in vivo characteristics were studied. METHODS: The solvent-displacement method was applied for preparation of the nanoparticle using Poly-D,L-lactic-co-glycolic acid(PLGA). The characteristics studies of the products included magnetic response, morphology (transmission electron microscopy and scanning electron microscopy), entrapment efficiency, drug loading, particle sizes, zeta potential, in vitro drug release and tissue magnetic targeting. Nanoparticle cytotoxicity to Saos-2 cells was investigated using the MTT assay. To guide the external magnetic field in the liver, the concentration of As(2)O(3) in the liver and kidney was measured using an atomic fluorescence spectrometer after injecting As(2)O(3)-MNPs into the caudal veins of mice. RESULTS: The As(2)O(3)-MNPs were approximately spherical. The average diameter, drug loading, entrapment efficiency and zeta potential of As(2)O(3)-MNPs were 109.9 nm, 10.08%, 82.16%, and -14.33 mV, respectively. The specific saturation magnetism was 8.65 emu/g. In vivo, the concentration of As(2)O(3) in the liver was significantly higher than that in the non-magnetic group. While the concentration of As(2)O(3) in the kidney was lower than that in the non-magnetic group. The C(max) in liver tissue in the magnetic group was 30.65 microg/g, which was 4.17 times the drug concentration in the same group in kidney tissue (7.35 microg/g) and 2.88 times the concentration of drug (10.66 microg/g) in the liver tissue of the non-magnetic group. CONCLUSION: The PLGA polymer-loaded magnetic nanoparticle composed of arsenic trioxide can be magnetically targeted well and applied in biomedicine. FAU - Yang, Guo-fu AU - Yang GF AD - Department of Orthopaedics, the First Affiliated Hospital of Harbin Medical University, Harbin, China. FAU - Li, Xiang-hui AU - Li XH FAU - Zhao, Zhe AU - Zhao Z FAU - Wang, Wen-bo AU - Wang WB LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Acta Pharmacol Sin JT - Acta pharmacologica Sinica JID - 100956087 RN - 0 (Arsenicals) RN - 0 (Drug Carriers) RN - 0 (Ferric Compounds) RN - 0 (Glycolates) RN - 0 (Oxides) RN - 1317-54-0 (ferrite) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 26009-03-0 (Polyglycolic Acid) RN - 33X04XA5AT (Lactic Acid) RN - E1UOL152H7 (Iron) RN - I38ZP9992A (Magnesium) RN - S7V92P67HO (Arsenic Trioxide) SB - IM MH - Animals MH - Arsenic Trioxide MH - Arsenicals/*administration & dosage MH - Cell Line, Tumor MH - Cell Proliferation/drug effects MH - Cell Survival/drug effects MH - *Drug Carriers MH - *Ferric Compounds MH - Glycolates MH - *Iron MH - Kidney/cytology/metabolism MH - Lactic Acid MH - Liver/cytology/metabolism MH - *Magnesium MH - *Magnetics MH - *Metal Nanoparticles MH - Mice MH - Oxides/*administration & dosage MH - Polyglycolic Acid MH - Polylactic Acid-Polyglycolic Acid Copolymer PMC - PMC4007504 EDAT- 2009/12/05 06:00 MHDA- 2010/08/17 06:00 PMCR- 2009/12/01 CRDT- 2009/12/05 06:00 PHST- 2009/12/05 06:00 [entrez] PHST- 2009/12/05 06:00 [pubmed] PHST- 2010/08/17 06:00 [medline] PHST- 2009/12/01 00:00 [pmc-release] AID - aps2009158 [pii] AID - 10.1038/aps.2009.158 [doi] PST - ppublish SO - Acta Pharmacol Sin. 2009 Dec;30(12):1688-93. doi: 10.1038/aps.2009.158.