PMID- 25271077 OWN - NLM STAT- MEDLINE DCOM- 20151020 LR - 20181202 IS - 1873-3476 (Electronic) IS - 0378-5173 (Linking) VI - 476 IP - 1-2 DP - 2014 Dec 10 TI - A mesoporous silicon/poly-(DL-lactic-co-glycolic) acid microsphere for long time anti-tuberculosis drug delivery. PG - 116-23 LID - S0378-5173(14)00695-4 [pii] LID - 10.1016/j.ijpharm.2014.09.040 [doi] AB - In this study, drug delivery systems for controlling release of hydrophobic anti-tuberculosis (TB) drug-rifampicin (RIF) or hydrophilic anti-TB drug-isoniazid (INH) from mesoporous silica (MS) were fabricated. The drug was first filled into the mesopores of MS particles, and then the drug-laden MS constructs were incorporated into the bulk of poly-(DL-lactic-co-glycolic) acid (PLGA) microspheres. In comparison with mono-component construct (drug-laden MS and drug-laden PLGA), this multi-component system significantly improved the release time of RIF and INH. For drug-laden MS, about 100% INH was released after 15 h, and about 70% RIF was released after 50 h. For drug-laden PLGA, about 100% INH and RIF were released after 30 and 40 days, respectively. After 60 days, the total RIF and INH release from MS/PLGA had only reached around only 48% and 57%, respectively. This MS/PLGA system could significantly prolong RIF or INH release compared to MS and PLGA. CCK-8 assay demonstrated that this MS/PLGA system had no cytotoxicity. And there has not been study of documenting the controlled release of anti-TB drugs such as RIF or INH from MS/PLGA. Considering the long time release of RIF and INH from MS/PLGA, a new door to bone TB would be opened. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Xu, Weikang AU - Xu W AD - School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China; Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China. FAU - Wei, Xinmiao AU - Wei X AD - School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China; Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China. FAU - Wei, Kun AU - Wei K AD - School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China; Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China. Electronic address: weikun@scut.edu.cn. FAU - Cao, Xiaodong AU - Cao X AD - School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China; Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China. FAU - Zhong, Shizhen AU - Zhong S AD - School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China; Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China. LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140928 PL - Netherlands TA - Int J Pharm JT - International journal of pharmaceutics JID - 7804127 RN - 0 (Antitubercular Agents) RN - 0 (Delayed-Action Preparations) RN - 0 (Drug Carriers) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 26009-03-0 (Polyglycolic Acid) RN - 33X04XA5AT (Lactic Acid) RN - 7631-86-9 (Silicon Dioxide) RN - V83O1VOZ8L (Isoniazid) RN - VJT6J7R4TR (Rifampin) SB - IM MH - Antitubercular Agents/*administration & dosage/chemistry MH - Chemistry, Pharmaceutical/methods MH - Delayed-Action Preparations MH - Drug Carriers/chemistry MH - *Drug Delivery Systems MH - Drug Liberation MH - Hydrophobic and Hydrophilic Interactions MH - Isoniazid/*administration & dosage/chemistry MH - Lactic Acid/chemistry MH - Microspheres MH - Polyglycolic Acid/chemistry MH - Polylactic Acid-Polyglycolic Acid Copolymer MH - Rifampin/*administration & dosage/chemistry MH - Silicon Dioxide/chemistry MH - Time Factors OTO - NOTNLM OT - Isoniazid OT - Mesoporous silica OT - PLGA OT - Prolong release OT - Rifampicin EDAT- 2014/10/02 06:00 MHDA- 2015/10/21 06:00 CRDT- 2014/10/02 06:00 PHST- 2014/06/18 00:00 [received] PHST- 2014/09/15 00:00 [revised] PHST- 2014/09/26 00:00 [accepted] PHST- 2014/10/02 06:00 [entrez] PHST- 2014/10/02 06:00 [pubmed] PHST- 2015/10/21 06:00 [medline] AID - S0378-5173(14)00695-4 [pii] AID - 10.1016/j.ijpharm.2014.09.040 [doi] PST - ppublish SO - Int J Pharm. 2014 Dec 10;476(1-2):116-23. doi: 10.1016/j.ijpharm.2014.09.040. Epub 2014 Sep 28.