Porous-Membrane Lung Interface for Immune Response Modeling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lung tissue reproducing microphysiological systems primarily focus on simple epithelial-endothelial cell bilayer structures, limiting the reproduction of immune responses and requiring animal models, which are ethically and cost-prohibitive.
Innovation Solution
A lung mimicking microphysiological system is developed using a porous membrane with lung organoids or lung organoid-derived transitional differentiated cells and vascular endothelial cells, allowing for air-liquid interface culture to mimic human lung immune responses, including immune cell movement and factor exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple epithelial-endothelial cell bilayer structure is used to reproduce lung tissue, then the structural simplicity and ease of manufacture are improved, but the ability to reproduce immune responses deteriorates
Solution Approach 1:
The system divides the lung tissue model into distinct functional layers: an epithelial cell layer facing the air interface, an endothelial cell layer facing the blood interface, and an intermediate basement membrane layer. This segmentation allows each layer to be optimized for its specific function while collectively reproducing complex immune responses that cannot be achieved in a simple bilayer structure.
Solution Approach 2:
The model embeds multiple cell types and structural elements within a hierarchical framework where epithelial cells, endothelial cells, immune cells, and extracellular matrix components are nested within each other in a physiologically accurate arrangement, enabling simultaneous reproduction of structural integrity and immune response functionality.
2Reliability
If animal models are used to study lung immune responses, then the physiological relevance is improved, but ethical concerns and costs deteriorate
Solution Approach 1:
The system creates a laboratory model that copies the essential physiological features of the lung immune response environment, including air-liquid interface architecture, vascular endothelial cells, immune cell populations, and extracellular matrix composition, thereby reproducing human lung immune responses without requiring animal models.
Solution Approach 2:
The model utilizes air-liquid interface culture conditions that fundamentally change the physiological parameters of cell culture compared to traditional submerged or animal models, enabling the reproduction of human-specific lung immune responses through controlled manipulation of environmental parameters such as gas exchange, fluid flow, and cell density.
3Adaptability or versatility
If immune cells are added to the lung tissue model, then the ability to reproduce immune responses is improved, but the device complexity deteriorates
Solution Approach 1:
The system merges multiple functional components—epithelial cells, endothelial cells, immune cells, and extracellular matrix—into a single integrated microphysiological platform where all components interact simultaneously in a physiologically relevant configuration, enabling comprehensive immune response reproduction without requiring multiple separate devices.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reproduces lung immune responses in various states, reducing the need for animal models and enabling research on lung diseases and therapeutic efficacy, while minimizing ethical and cost issues.
Implementation Method 1
a porous membrane including lung organoids or lung organoid-derived transitional differentiated cells, and vascular endothelial cells
Data Source
AI summary
The present invention relates to a lung mimicking microphysiological system including a porous membrane including lung organoids or lung organoid-derived transitional differentiated cells, macrophages, and vascular endothelial cells; and a manufacturing method thereof. More specifically, the system of the present invention has high utility as a lung immune response-mimetic air-fluid interface microphysiological system. The system of the present invention can be exposed to an external infectious agent or a drug under the same conditions as the lung in vivo, thus can conduct a wide range of research, including modeling of lung immune responses by external infectious agents and a test for therapeutic drug efficacy according to lung infectious agents, and further can also be utilized in in vitro toxicity evaluation, disease modeling, new drug development, precision medicine, and the like.