TY - JOUR
KW - Alternative toxicology model
KW - Carbon nanomaterial (GO and MWCNT)
KW - Lung fibrosis
KW - Lung organoid
KW - Nanotoxicity
KW - Pulmonary exposure
AU - Rahaf Issa
AU - Neus Lozano
AU - Kostas Kostarelos
AU - Sandra Vranic
AB - Human lung organoids (HLOs) are increasingly used to model development and infectious diseases, however their ability to recapitulate functional pulmonary tissue response to nanomaterial (NM) exposures has yet to be demonstrated. Here, we established a lung organoid exposure model that utilises microinjection to present NMs into the lumen of organoids. Our model assures efficient, reproducible and controllable exposure of the apical pulmonary epithelium, emulating real-life human exposure scenario. By comparing the impact of two well studied carbon-based NMs, graphene oxide sheets (GO) and multi-walled carbon nanotubes (MWCNT), we validated lung organoids as tools for predicting pulmonary NM-driven responses. In agreement with established in vivo data, we demonstrate that MWCNT, but not GO, elicit adverse effects on lung organoids, leading to a pro-fibrotic phenotype. Our findings reveal the capacity and suitability of HLOs for hazard assessment of NMs, aligned with the much sought-out 3Rs (animal research replacement, reduction, refinement) framework.
BT - Nano Today
DA - 2024-06-01
DO - 10.1016/j.nantod.2024.102254
N2 - Human lung organoids (HLOs) are increasingly used to model development and infectious diseases, however their ability to recapitulate functional pulmonary tissue response to nanomaterial (NM) exposures has yet to be demonstrated. Here, we established a lung organoid exposure model that utilises microinjection to present NMs into the lumen of organoids. Our model assures efficient, reproducible and controllable exposure of the apical pulmonary epithelium, emulating real-life human exposure scenario. By comparing the impact of two well studied carbon-based NMs, graphene oxide sheets (GO) and multi-walled carbon nanotubes (MWCNT), we validated lung organoids as tools for predicting pulmonary NM-driven responses. In agreement with established in vivo data, we demonstrate that MWCNT, but not GO, elicit adverse effects on lung organoids, leading to a pro-fibrotic phenotype. Our findings reveal the capacity and suitability of HLOs for hazard assessment of NMs, aligned with the much sought-out 3Rs (animal research replacement, reduction, refinement) framework.
PY - 2024
EP - 102254
T2 - Nano Today
TI - Functioning human lung organoids model pulmonary tissue response from carbon nanomaterial exposures
UR - https://www.sciencedirect.com/science/article/pii/S1748013224001099
VL - 56
Y2 - 2024-04-18
SN - 1748-0132
ER -