Lung-On-Chip Microchannel Model for Cigarette Smoke Disease Testing
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Solution Overview
Problem
Current lung disease models lack a low-cost, human cell-based alternative that accurately simulates the physiological environment for investigating the effects of toxins and pollutants, relying on expensive and time-consuming animal studies that fail to model human biological responses.
Innovation Solution
A biomimetic lung model is developed using microengineering technologies to recreate the human airway environment with microchannels, membranes, and cell layers, incorporating airway epithelial cells, macrophages, and a device for delivering agents like cigarette smoke, simulating lung diseases such as COPD and emphysema.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional animal studies are used to investigate lung disease mechanisms, then biological responses can be studied in a living system, but the cost and time consumption increase significantly
Solution Approach 1:
The patent creates a microengineered lung model that copies the essential structural and functional features of human lung tissue using human-derived cells. The model includes airway epithelial cells, alveolar epithelial cells, and endothelial cells organized in a three-dimensional architecture that mimics the lung's alveolar structure, enabling study of human-specific biological responses without using animal subjects
Solution Approach 2:
The microengineered lung model uses inexpensive human cell lines and standardized microfabrication techniques to create a cost-effective alternative to expensive animal studies. The model can be rapidly fabricated and discarded after use, eliminating the long breeding and acclimation periods required for animal studies
2Reliability
If traditional animal studies are used to investigate lung disease mechanisms, then biological responses can be studied in a living system, but the cost increases significantly
Solution Approach 1:
The patent creates a microengineered lung model that copies the essential structural and functional features of human lung tissue using human-derived cells. The model includes airway epithelial cells, alveolar epithelial cells, and endothelial cells organized in a three-dimensional architecture that mimics the lung's alveolar structure, enabling study of human-specific biological responses without using animal subjects
Solution Approach 2:
The microengineered lung model uses inexpensive human cell lines and standardized microfabrication techniques to create a cost-effective alternative to expensive animal studies. The model can be rapidly fabricated and discarded after use, eliminating the long breeding and acclimation periods required for animal studies
3Ease of manufacture
If traditional cell culture models are used to study lung physiology, then the model is simple and low-cost, but the structural, functional and environmental complexity of the lung cannot be adequately represented
Solution Approach 1:
The patent applies local quality by creating distinct microenvironments within the model that replicate different lung regions. The device includes separate chambers for airway epithelium and alveolar epithelium, each with appropriate structural and biochemical characteristics, allowing study of region-specific physiological responses while maintaining overall system simplicity
Solution Approach 2:
The model uses composite construction combining human-derived cell types with biocompatible microfabricated structures. The device integrates living cells with engineered substrates and microfluidic channels to create a hybrid system that maintains physiological complexity while remaining manufacturable using standard techniques
4Reliability
If microengineered biomimetic systems are developed to simulate organ-level physiology, then physiological relevance is improved, but device complexity increases
Solution Approach 1:
The patent divides the lung model into segmented functional units, with separate microchambers for different epithelial cell types and distinct microfluidic channels for controlled delivery of toxins and pollutants. This segmentation allows complex physiological processes to be studied in isolated, manageable components while maintaining overall system functionality
Solution Approach 2:
The microengineered device is designed with universal features that can accommodate multiple cell types and experimental conditions. The standardized microfabricated structure can be used to study various lung diseases and toxicological responses, reducing the need for multiple specialized devices and simplifying the overall system complexity
Data Source
AI summary
The presently disclosed subject matter provides a biomimetic lung disease model, and methods of its production and use. In one exemplary embodiment, the biomimetic lung disease model can include a first and second microchannel with a membrane coated with airway epithelial cells disposed between the microchannels and at least one device coupled to the biomimetic model that delivers an agent to at least one microchannel. In certain embodiments, the agent is cigarette smoke.