Contractile Cell Patterning for 3D Tissue Folding
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Solution Overview
Problem
Current methods fail to effectively generate tissues that can fold into three-dimensional forms in vitro, lacking control over the folding process and shape determination.
Innovation Solution
The method involves patterning contractile cells on a substrate with a matrix of fibers, where the contractile cells act to fold the tissue into a predetermined three-dimensional shape by acting on the fibers, allowing for controlled tissue folding based on the placement and pattern of contractile cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional methods are used to generate tissues in vitro, then tissue generation is possible, but control over folding process and shape determination is lacking
Solution Approach 1:
The patent employs self-organizing cellular processes where cells autonomously fold the tissue through their natural contractile and migratory behaviors. The cellular machinery itself performs the folding function without external mechanical intervention, achieving complex 3D shapes through biologically driven self-organization rather than imposed structural constraints
Solution Approach 2:
The invention controls tissue folding by modulating key cellular parameters including contractility levels, migration rates, and differentiation timing. By dynamically adjusting these cellular parameters through biochemical signaling and environmental cues, precise control over the folding process and final tissue morphology is achieved without complex mechanical devices
2Shape
If contractile cells are placed in tissue to enable folding, then three-dimensional shape control is improved, but the complexity of cell patterning and organization increases
Solution Approach 1:
The patent pre-patterns contractile cells and extracellular matrix components in specific spatial arrangements before initiating the folding process. This preliminary organization of cellular and matrix elements establishes the blueprint for subsequent 3D shape formation, allowing controlled folding without requiring complex real-time coordination during the actual folding event
Solution Approach 2:
The invention divides the tissue into functional segments with distinct cellular compositions - regions enriched with contractile cells for active folding, regions with structural support cells, and regions with extracellular matrix for mechanical support. This segmentation allows different parts of the tissue to perform specialized functions, achieving complex 3D shapes through coordinated action of simpler modular units
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
This approach enables the generation of tissues that can fold into specific three-dimensional shapes, providing control over the folding process and resulting architecture, mimicking in vivo tissue folding mechanisms.
Implementation Method 1
folding of the layer by the action of the contractile cells on the fibers present in the ECM
Implementation Method 2
the cell surface-attached nucleic acids hybridize to the patterned nucleic acids to generate patterned contractile cells
Data Source
AI summary
The present disclosure provides methods and systems for generating biological tissues that are configured for folding into a pre-determined three-dimensional form. The present disclosure utilizes contractile cells for folding a biological tissue into a three-dimensional shape. The methods include disposing a pattern of contractile cells on a surface that includes fibers actuated by the contractile cells and folding of the surface by the action of the contractile cells on the fibers. Tissues generated using the methods and systems of the present disclosure are also provided.