Implantable Assay Array for Parallel In Vivo Screening
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Solution Overview
Problem
Current methods for studying liver regeneration are limited by the inability to test multiple conditions simultaneously, hindering the understanding of microenvironmental factors and the development of therapeutic approaches for liver regeneration and repair.
Innovation Solution
A high-throughput tissue regeneration platform using an implantable assay array with biocompatible substrates and hydrogel formulations, allowing for the creation of mutually isolated microcompartments to test various cell types, genetic permutations, and extracellular microenvironment formulations in vivo, facilitating parallel screening and therapeutic discovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional methods are used to study liver regeneration, then each condition must be tested separately in different subjects, but this increases the number of animals required and surgical procedures
Solution Approach 1:
The biocompatible substrate is divided into multiple mutually isolated microcompartments, each capable of hosting separate tissue constructs under different experimental conditions. This segmentation allows parallel testing of multiple conditions within a single subject, directly resolving the contradiction between measurement precision and quantity of animals required.
2Reliability
If multiple conditions are tested simultaneously in separate subjects, then each condition receives adequate resources, but the overall productivity and throughput of research is limited
Solution Approach 1:
Multiple independent experimental conditions are merged into a single biocompatible substrate device that can be implanted in one subject. The mutually isolated microcompartments maintain condition-specific integrity while the overall system enables high-throughput research, simultaneously achieving reliability and productivity.
Solution Approach 2:
The biocompatible substrate serves multiple functions: it provides structural support, creates isolated microenvironments for different conditions, enables parallel experimentation, and reduces animal usage. This multi-functionality allows a single device to replace multiple separate experimental setups.
3Ease of manufacture
If rodent studies are used to identify regeneration pathways, then initial discoveries can be made, but the integrated roles of multiple pathways in human liver regeneration remain unknown
Solution Approach 1:
The system enables transition from rodent-based studies to human tissue construct studies by changing the biological parameter (from rodent cells to human cells). The microcompartments can host human-derived tissue constructs, allowing research parameters to be changed while maintaining the ease of controlled experimentation.
Data Source
AI summary
Systems, materials, and methods for making and using in vivo screening and highly parallel tissue grafting assay arrays are described. An implantable assay array may include a biocompatible substrate. The biocompatible substrate may define a number of mutually isolated microcompartments. The number of mutually isolated microcompartments may be determined based at least in part on a size of the implantable assay array. The size of the implantable assay array may be determined based at least in part on a size of an implantation subject.