Please use this identifier to cite or link to this item: doi:10.22028/D291-31815
Title: 3D air-liquid interface culture of Cystic Fibrosis bronchial epithelia, macrophages and P. aeruginosa to assess host-pathogen interaction and drug efficacy
Author(s): Montefusco-Pereira, Carlos Victor
Language: English
Year of Publication: 2020
DDC notations: 500 Science
Publikation type: Doctoral Thesis
Abstract: To establish a predictive human infected in vitro system for Cystic fibrosis (CF) lung infection, we set-up a P. aeruginosa-infected model at the air-liquid interface (ALI), constituted by the human cystic fibrosis bronchial epithelial cells (CFBE41o-) in the apical side of a transwell and human macrophages (THP-1) in the basolateral side. Planktonic P. aeruginosa infection of CFBE41o- cells led to an earlier biofilm formation after 6 hours. Macrophages migrated towards the infection side, on the apical compartment already after 3 hours of infection, and were able to internalize the bacteria. Upon tobramycin treatment, the bacterial killing was higher on an abiotic surface (plastic plates) than on cell surface, which suggests an overestimation of the drug efficacy in cell-free assays. Perspectively, this model can be used to further investigate the immune system. Here, we present the characterization of a neutrophil-like cell, HL-60, and its potential to be a platform to use neutrophils as delivery methods of internalized nanoparticle therapy. Aiming for therapy, we assessed the potential of quaternary ammonium surfactant-liposomes to inhibit bacterial adherence. That was the first step to develop a particle to simultaneously inhibit adhesion and provide encapsulation of antibiotic drugs as combination drug delivery.
Link to this record: urn:nbn:de:bsz:291--ds-318158
hdl:20.500.11880/29553
http://dx.doi.org/10.22028/D291-31815
Advisor: Lehr, Claus-Michael
Date of oral examination: 14-Jul-2020
Date of registration: 21-Aug-2020
Sponsorship ID: ITN-NABBA-642028
Notes: Innovative Training Networks of the Marie Skłodowska-Curie Actions named NABBA (Design and Development of advanced NAnomedicines to overcome Biological BArriers and to treat severe diseases). (Grant agreement no.: 642028)
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Pharmazie
Professorship: NT - Prof. Dr. Claus-Michael Lehr
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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