PMID- 31804792 OWN - NLM STAT- MEDLINE DCOM- 20200928 LR - 20200928 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 12 IP - 1 DP - 2020 Jan 8 TI - Ultrasmall TPGS-PLGA Hybrid Nanoparticles for Site-Specific Delivery of Antibiotics into Pseudomonas aeruginosa Biofilms in Lungs. PG - 380-389 LID - 10.1021/acsami.9b19644 [doi] AB - Inhaled antibiotic treatment of cystic fibrosis-related bacterial biofilm infections is challenging because of the pathological environment of the lungs. Here, we present an "environment-adaptive" nanoparticle composed of a solid poly lactic-co-glycolic acid (PLGA) core and a mucus-inert, enzymatically cleavable shell of d-alpha-tocopheryl polyethylene glycol 1000 succinate (TPGS) for the site-specific delivery of antibiotics to bacterial biofilms via aerosol administration. The hybrid nanoparticles with ultrasmall size were self-assembled via a nanoprecipitation process by using a facile microfluidic method. The interactions of the nanoparticles with the biological barriers were comprehensively investigated by using cutting-edge techniques (e.g., quartz crystal microbalance with dissipation monitoring, total internal reflection fluorescence microscopy-based particle tracking, in vitro biofilm model cultured in a flow-chamber system, and quantitative imaging analysis). Our results suggest that the mucus-inert, enzymatically cleavable TPGS shell enables the nanoparticles to penetrate through the mucus, accumulate in the deeper layer of the biofilms, and serve as sustained release depot, thereby improving the killing efficacy of azithromycin (a macrolide antibiotic) against biofilm-forming Pseudomonas aeruginosa. In conclusion, the ultrasmall TPGS-PLGA hybrid nanoparticles represent an efficient delivery system to overcome the multiple barriers and release antibiotics in a sustained manner in the vicinity of the biofilm-forming bacteria. FAU - Wan, Feng AU - Wan F AUID- ORCID: 0000-0003-2822-9029 FAU - Bohr, Soren S-R AU - Bohr SS AUID- ORCID: 0000-0002-8107-2465 AD - Department of Chemistry & Nano-Science Center , University of Copenhagen , Thorvaldsensvej 40 , DK-1871 Frederiksberg C , Denmark. AD - Novo Nordisk Foundation Centre for Protein Research, Faculty of Health and Medical Sciences , University of Copenhagen , Blegdamsvej 3B , 2200 Copenhagen , Denmark. FAU - Klodzinska, Sylvia Natalie AU - Klodzinska SN FAU - Jumaa, Haidar AU - Jumaa H FAU - Huang, Zheng AU - Huang Z FAU - Nylander, Tommy AU - Nylander T AUID- ORCID: 0000-0001-9420-2217 AD - Department of Physical Chemistry , Lund University , SE-221 00 Lund , Sweden. FAU - Thygesen, Mikkel Boas AU - Thygesen MB AUID- ORCID: 0000-0002-0158-2802 AD - Department of Chemistry & Nano-Science Center , University of Copenhagen , Thorvaldsensvej 40 , DK-1871 Frederiksberg C , Denmark. AD - Novo Nordisk Foundation Centre for Protein Research, Faculty of Health and Medical Sciences , University of Copenhagen , Blegdamsvej 3B , 2200 Copenhagen , Denmark. FAU - Sorensen, Kasper Kildegaard AU - Sorensen KK AD - Department of Chemistry & Nano-Science Center , University of Copenhagen , Thorvaldsensvej 40 , DK-1871 Frederiksberg C , Denmark. AD - Novo Nordisk Foundation Centre for Protein Research, Faculty of Health and Medical Sciences , University of Copenhagen , Blegdamsvej 3B , 2200 Copenhagen , Denmark. FAU - Jensen, Knud Jorgen AU - Jensen KJ AUID- ORCID: 0000-0003-3525-5452 AD - Department of Chemistry & Nano-Science Center , University of Copenhagen , Thorvaldsensvej 40 , DK-1871 Frederiksberg C , Denmark. AD - Novo Nordisk Foundation Centre for Protein Research, Faculty of Health and Medical Sciences , University of Copenhagen , Blegdamsvej 3B , 2200 Copenhagen , Denmark. FAU - Sternberg, Claus AU - Sternberg C AD - Department of Biotechnology and Biomedicine , Technical University of Denmark , Building 221, Soltofts Plads , DK-2800 Lyngby , Denmark. FAU - Hatzakis, Nikos AU - Hatzakis N AUID- ORCID: 0000-0003-4202-0328 AD - Department of Chemistry & Nano-Science Center , University of Copenhagen , Thorvaldsensvej 40 , DK-1871 Frederiksberg C , Denmark. AD - Novo Nordisk Foundation Centre for Protein Research, Faculty of Health and Medical Sciences , University of Copenhagen , Blegdamsvej 3B , 2200 Copenhagen , Denmark. FAU - Morck Nielsen, Hanne AU - Morck Nielsen H AUID- ORCID: 0000-0002-7285-9100 LA - eng PT - Journal Article DEP - 20191217 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 RN - 0 (Anti-Bacterial Agents) RN - 0 (Drug Carriers) RN - 26009-03-0 (Polyglycolic Acid) SB - IM MH - Administration, Inhalation MH - Anti-Bacterial Agents/*chemistry/pharmacology MH - Biofilms/*drug effects MH - Drug Carriers/*administration & dosage/*chemistry MH - Microbial Sensitivity Tests MH - Nanoparticles/*chemistry MH - Polyglycolic Acid/*administration & dosage/*chemistry MH - Pseudomonas aeruginosa/*drug effects OTO - NOTNLM OT - Pseudomonas aeruginosa biofilm OT - TPGS-PLGA hybrid nanoparticles OT - aerosol administration OT - bio-nano interaction OT - cystic fibrosis EDAT- 2019/12/06 06:00 MHDA- 2020/09/29 06:00 CRDT- 2019/12/06 06:00 PHST- 2019/12/06 06:00 [pubmed] PHST- 2020/09/29 06:00 [medline] PHST- 2019/12/06 06:00 [entrez] AID - 10.1021/acsami.9b19644 [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2020 Jan 8;12(1):380-389. doi: 10.1021/acsami.9b19644. Epub 2019 Dec 17.