PMID- 29663290 OWN - NLM STAT- MEDLINE DCOM- 20180903 LR - 20181202 IS - 1530-9932 (Electronic) IS - 1530-9932 (Linking) VI - 19 IP - 4 DP - 2018 May TI - Pulmonary Administration of Microparticulate Antisense Oligonucleotide (ASO) for the Treatment of Lung Inflammation. PG - 1908-1919 LID - 10.1208/s12249-018-1002-7 [doi] AB - Targeted delivery to the lung for controlling lung inflammation is an area that we have explored in this study. The purpose was to use microparticles containing an antisense oligonucleotide (ASO) to NF-kappaB to inhibit the production of proinflammatory cytokines. Microparticles were prepared using the B-290 Buchi Spray Dryer using albumin as the microparticle matrix. Physicochemical characterization of the microparticles showed the size ranged from 2 to 5 mum, the charge was - 38.4 mV, and they had a sustained release profile over 72 h. Uptake of FITC-labeled ASO-loaded microparticles versus FITC-labeled ASO solution by RAW264.7 murine macrophage cells was 5-10-fold higher. After pulmonary delivery of microparticles to Sprague-Dawley rats, the microparticles were uniformly distributed throughout the lung and were retained in the lungs until 48 h. Serum cytokine (TNF-alpha and IL-1beta) levels of rats after induction of lung inflammation by lipopolysaccharide were measured until 72 h. Animals receiving ASO-loaded microparticles were successful in significantly controlling lung inflammation during this period as compared to animals receiving no treatment. This study was successful in proving that microparticulate ASO therapy was capable of controlling lung inflammation. FAU - Ubale, Ruhi V AU - Ubale RV AD - Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, 3001 Mercer University Drive, Atlanta, Georgia, 30341, USA. FAU - Shastri, Prathap Nagaraja AU - Shastri PN AD - Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, 3001 Mercer University Drive, Atlanta, Georgia, 30341, USA. FAU - Oettinger, Carl AU - Oettinger C AD - Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, 3001 Mercer University Drive, Atlanta, Georgia, 30341, USA. FAU - D'Souza, Martin J AU - D'Souza MJ AD - Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, 3001 Mercer University Drive, Atlanta, Georgia, 30341, USA. dsouza_mj@mercer.edu. LA - eng PT - Journal Article DEP - 20180416 PL - United States TA - AAPS PharmSciTech JT - AAPS PharmSciTech JID - 100960111 RN - 0 (Lipopolysaccharides) RN - 0 (Oligonucleotides, Antisense) SB - IM MH - Animals MH - Drug Delivery Systems/*methods MH - Female MH - Lipopolysaccharides/toxicity MH - Lung/*drug effects/metabolism/pathology MH - Macrophages/drug effects/metabolism MH - Male MH - Mice MH - *Microspheres MH - Oligonucleotides, Antisense/*administration & dosage/metabolism MH - Pneumonia/chemically induced/*drug therapy/metabolism MH - RAW 264.7 Cells MH - Rats MH - Rats, Sprague-Dawley OTO - NOTNLM OT - antisense oligonucleotide OT - inflammation OT - microparticles OT - pulmonary delivery OT - spray drying EDAT- 2018/04/18 06:00 MHDA- 2018/09/04 06:00 CRDT- 2018/04/18 06:00 PHST- 2017/09/12 00:00 [received] PHST- 2018/03/19 00:00 [accepted] PHST- 2018/04/18 06:00 [pubmed] PHST- 2018/09/04 06:00 [medline] PHST- 2018/04/18 06:00 [entrez] AID - 10.1208/s12249-018-1002-7 [pii] AID - 10.1208/s12249-018-1002-7 [doi] PST - ppublish SO - AAPS PharmSciTech. 2018 May;19(4):1908-1919. doi: 10.1208/s12249-018-1002-7. Epub 2018 Apr 16.