Fluorescent Caspase-1 Probe for Real-Time Inflammatory Imaging
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Solution Overview
Problem
Current methods for detecting caspase-1 activity are invasive, complex, and unable to provide real-time measurement, making early diagnosis of inflammatory diseases challenging due to the enzyme's location in the cytoplasm and the need for protein extraction.
Innovation Solution
A probe with a fluorophore and quencher bound to a polypeptide cleaved by caspase-1, which emits fluorescence only when activated by the enzyme, allowing for non-invasive, real-time imaging and measurement of caspase-1 activity in cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If protein extraction methods (electrophoresis, ELISA) are used to detect caspase-1, then detection can be performed, but the procedure is invasive, complex, and cannot provide real-time measurement
Solution Approach 1:
The invention extracts only the essential detection function by using a fluorescent probe that directly binds to caspase-1 in living cells, eliminating the need for complex protein extraction procedures while maintaining detection accuracy
Solution Approach 2:
A fluorescent probe acts as an intermediary molecule that binds specifically to caspase-1, translating the enzyme's presence and activity into measurable fluorescence signals without requiring direct manipulation of cellular proteins
2Measurement precision
If protein extraction is performed to measure caspase-1 activity, then measurement can be achieved, but time is required for extraction and processing, preventing early diagnosis
Solution Approach 1:
The fluorescent probe is pre-designed with the specific recognition sequence for caspase-1, allowing it to immediately detect the enzyme upon introduction to cells without requiring any preparatory extraction or processing steps
Solution Approach 2:
The invention replaces mechanical protein extraction and laboratory-based measurement systems with a biochemical fluorescence-based detection system that can be performed directly in living cells, dramatically reducing measurement time
3Measurement precision
If invasive procedures are used to extract proteins for caspase-1 detection, then detection is possible, but patient comfort and biocompatibility are compromised
Solution Approach 1:
The fluorescent probe performs self-detection by binding directly to caspase-1 within living cells and generating its own fluorescence signal, eliminating the need for invasive tissue sampling or protein extraction procedures
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 accurate and sensitive detection of active caspase-1 in cells, facilitating early diagnosis of inflammatory diseases and reducing the complexity and invasiveness of existing methods, with the probe being biocompatible and capable of imaging inflammatory responses throughout the body.
Implementation Method 1
a fluorophore (b) and a quencher (c) are bound to both ends of a polypeptide (a) consisting of 4-7 amino acid residues and being cleaved specifically by caspase-1
Implementation Method 2
a fluorophore (b) and a quencher (c) are bound to both ends of a polypeptide (a) consisting of 4-7 amino acid residues and being cleaved specifically by caspase-1
Data Source
AI summary
A probe for measuring the activity of caspase-1 according to the present disclosure can specifically image cells or tissues where inflammatory response is induced because it is cleaved by reacting specifically with the active caspase-1 enzyme in vivo and in vitro and re-emits fluorescence. The probe for measuring the activity of caspase-1 can be used for various purposes, such as for imaging of cells or tissues where inflammatory response is induced, as a drug carrier, for screening of a drug inhibiting inflammatory response, etc.The probe for measuring the activity of caspase-1 is applicable both in vivo and in vitro, and can be used for various applications such as high-throughput screening for new drug development, early diagnosis of diseases, etc.