Chimeric Polypeptides with Force Sensor Cleavage Domains
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Solution Overview
Problem
Current inducible expression systems in cellular biology often require global effects or user-input to control cellular behaviors, lacking the ability to autonomously modulate specific cellular processes in response to environmental signals.
Innovation Solution
Development of chimeric polypeptides with force sensor cleavage domains, such as non-Notch force sensor cleavage domains, that undergo cleavage upon binding with specific partners, allowing for the modulation of cellular functions like gene expression and cell-cell signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional inducible expression systems are used to control cellular behaviors, then cellular activities can be modulated, but global effects occur and user-input is required to restrict changes to particular cells
Solution Approach 1:
The system divides the cell population into distinct groups expressing different chimeric polypeptides with specific ligand-binding specificities. Each cell type responds only to its specific environmental cue, enabling localized modulation without global effects. This segmentation allows independent control of different cellular processes in different cell populations.
Solution Approach 2:
The chimeric polypeptides enable cells to autonomously detect environmental signals and transduce them into behavioral outputs without requiring external user-input. The system self-regulates by having cells respond to naturally occurring environmental cues such as extracellular matrix components or neighboring cell signals.
2Manufacturing precision
If conventional inducible expression systems are used, then cellular behaviors can be controlled, but user-input is required to restrict changes to particular cells
Solution Approach 1:
Cells autonomously detect environmental signals through their chimeric polypeptides and automatically transduce these signals into appropriate behavioral responses. This eliminates the need for user-input to restrict changes to particular cells, as the system self-regulates based on local environmental cues.
3Manufacturing precision
If chimeric polypeptides with force sensor cleavage domains are used, then precise and autonomous modulation of cellular processes is enabled, but the system requires specific binding members and their partners
Solution Approach 1:
The system uses a universal force sensor cleavage domain mechanism that can be paired with various specific binding members (such as vWF A2 domains with different ligand specificities). This universal mechanism combined with diverse binding partners enables precise modulation across multiple cellular processes and contexts, achieving both precision and versatility.
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 precise and autonomous modulation of cellular processes, including gene expression and signaling, in response to specific environmental cues, enhancing the control over cellular behaviors without global effects.
Implementation Method 1
cleavage of a force sensor cleavage domain... induced upon binding of a specific binding member of the chimeric polypeptide with its binding partner
Data Source
AI summary
Provided are chimeric polypeptides which modulate various cellular processes following cleavage of a force sensor cleavage domain, including non-Notch force sensor cleavage domains, induced upon binding of a specific binding member of the chimeric polypeptide with its binding partner. Methods of using force sensor cleavage domain-containing chimeric polypeptides to modulate cellular functions, including e.g., modulation (including induction or repression) of gene expression, are also provided. Nucleic acids encoding the subject chimeric polypeptides and associated expression cassettes and vectors as well as cells that contain such nucleic acids and/or expression cassettes and vectors are provided. Also provided, are methods of monitoring cell-cell signaling and method of treating a subject using the described components, as well as kits for practicing the subject methods.