3D Tissue Model with Light-Emitting Cells for Non-Destructive Evaluation
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Solution Overview
Problem
Existing three-dimensional tissue models lack the capability for non-destructive evaluation of specific regions' responses to external stimuli, as they only measure average responses after tissue destruction, making it difficult to assess interactions between cell types and variations due to microenvironment changes or stimulus permeation.
Innovation Solution
A three-dimensional tissue comprising a first cellular region with light-emitting cells and a second cellular region without light-emitting cells, allowing for the non-destructive evaluation of responses by distinguishing the light-emitting region from the rest, with the light-emitting cells occupying at least 50% of the first region's volume and the second region being adjacent or dispersed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three-dimensional tissue models are used to evaluate cell responses, then the physiological relevance and accuracy of evaluation are improved, but the ability to non-destructively measure specific region responses deteriorates
Solution Approach 1:
The patent introduces light-emitting cells specifically in the first cellular region while the second cellular region contains non-light-emitting cells. This local differentiation enables non-destructive detection of responses in the light-emitting region through fluorescence or chemiluminescence signals, while maintaining the physiological relevance of the three-dimensional tissue structure.
2Productivity
If average response measurement is used, then the overall tissue response can be measured, but the ability to assess specific region interactions and microenvironment variations is lost
Solution Approach 1:
The patent divides the three-dimensional tissue into distinct cellular regions: a first cellular region containing light-emitting cells and a second cellular region containing non-light-emitting cells. This segmentation allows the light-emitting region to provide specific information about local responses and interactions, while the overall tissue structure maintains physiological relevance for comprehensive evaluation.
3Difficulty of detecting and measuring
If light-emitting cells are introduced into three-dimensional tissue, then non-destructive detection of specific regions is enabled, but the complexity of tissue construction increases
Solution Approach 1:
Rather than uniformly distributing light-emitting cells throughout the entire three-dimensional tissue, the patent localizes them to the first cellular region. This approach enables non-destructive detection capability while minimizing the complexity increase, as only a portion of the tissue requires specialized cell types rather than the entire structure.
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
Enables the non-destructive evaluation of specific regions within the three-dimensional tissue, allowing for the assessment of stimulus responses, safety evaluation of substances, and drug screening by measuring light emission from the light-emitting cells, providing insights into variations in cell responses due to stimulus position and permeation.
Implementation Method 1
The cells of the first type are cells that emit light by chemiluminescence, bioluminescence, or fluorescence in response to an external stimulus
Implementation Method 2
The cells of the first type are cells that emit light by chemiluminescence, bioluminescence, or fluorescence in response to an external stimulus
Implementation Method 3
The cells of the first type are cells that emit light by chemiluminescence, bioluminescence, or fluorescence in response to an external stimulus
Data Source
AI summary
Provided is a three-dimensional tissue, including: a first cellular region including cells of a first type; and a second cellular region including cells of a second type different from the first type, wherein the cells of the first type are cells that emit light by chemiluminescence, bioluminescence, or fluorescence in response to an external stimulus.