Nested Cell Encapsulation for Split-Pool Tracking
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Solution Overview
Problem
Current microencapsulation techniques for cells are laborious and inefficient in tracking cell populations and culture history, especially in split-pool procedures, due to difficulties in labeling and identifying cells exposed to multiple culture conditions.
Innovation Solution
A method of microencapsulating cells with multiple labels, where each label is incorporated into or associated with multiple microcapsule layers, allowing for the detection and tracking of cells through their encapsulation history by repeating the encapsulation process with different labels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cells are subjected to repeated splitting and re-pooling in split-pool procedures, then cell population diversity and culture condition exploration are improved, but tracking and identification of cell populations becomes more difficult and laborious
Solution Approach 1:
The patent applies nested microcapsules where cells are encapsulated in inner microcapsules that are themselves contained within outer microcapsules. Each microcapsule layer can carry distinct labels, creating a nested structure that preserves hierarchical information about cell culture history and exposure conditions, thereby enabling efficient tracking despite repeated splitting and pooling operations
Solution Approach 2:
The patent incorporates multiple labels with distinct detectable signals (analogous to color changes) into different microcapsule layers. These labels serve as identifiers that allow differentiation and tracking of cell populations that have been exposed to different culture conditions, making it easy to identify and monitor specific cell lineages through their unique label combinations
2Measurement precision
If multiple labels are incorporated into microcapsule layers, then cell identification and tracking capability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent divides the labeling function across multiple discrete microcapsule layers, with each layer potentially containing different labels. This segmentation allows for modular manufacturing where labels can be incorporated into specific layers independently, simplifying the overall manufacturing process while maintaining high identification precision through the combination of multiple labels
Solution Approach 2:
The patent incorporates labels into microcapsule layers during the encapsulation process itself, rather than adding labels separately afterward. This preliminary action integrates the labeling step with the manufacturing process, avoiding additional complex post-processing steps while ensuring labels are properly distributed and fixed within the microcapsule structure
Data Source
AI summary
The invention relates to a method for encapsulating living cells and labels, as well as encapsulated labelled cells and kits for performing such encapsulation. The encapsulated cells may be useful in multiple parallel tissue culture experiments, where the labels in each microcapsule may be used to decipher a cells path through a series of culturing steps.