The invention discloses a three-chamber integrated micro-fluidic
chip for simulating an
airway-alveolar continuous
barrier function and an application of the three-chamber integrated micro-fluidic
chip in
COPD (chronic obstructive
pulmonary disease)
drug evaluation. The
chip comprises an
airway chamber, a
pulmonary alveolus chamber, a
blood vessel chamber and a porous PET (
polyethylene terephthalate) membrane, and the continuous spatial hierarchy of'
airway-
pulmonary alveolus-qi and blood barrier-
blood vessel 'is reconstructed through a'three-chamber-in-one' bionic structure. According to the invention, optimized culture systems for the airway epithelial cells and AT2 cells from
COPD patients are respectively established, airway
organoid and alveolar
organoid with
pathological characteristics are obtained, and co-culture is realized in the chip. The chip is provided with a micro sampling port, and
effluent can be collected at different time points for
dynamic monitoring of
inflammatory factors. By combining multi-dimensional detection such as dead and living
staining, ELISA (
enzyme-linked immunosorbent
assay),
immunofluorescence and the like, an all-dimensional
evaluation system from morphology to molecules and from
intracellular to
extracellular is constructed. The application of
erdosteine intervention
verification shows that the chip can effectively simulate airway-alveolar double-part damage characteristics (including shape shrinkage,
cell death increase, inflammatory factor IL-6 increase,
mucus factor MUC5B high
secretion and the like) of a
COPD patient, and can reliably evaluate the
curative effect of a
medicine. The invention provides an in-vitro platform with high bionic degree and high stability for COPD mechanism research,
drug screening and personalized
medical treatment, and has wide industrial application prospects in the fields of
respiratory disease drug research and development,
toxicity evaluation and precise
medicine.