Rosamine Derivative Fluorescent Probe for Stem Cell Detection
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Solution Overview
Problem
Current methods for isolating and characterizing stem cells, such as embryonic and induced pluripotent stem cells, are hindered by their heterogeneity and unpredictable proliferation and differentiation, requiring lengthy processes and unsuitable for further usage due to reliance on morphology and antibody reactions.
Innovation Solution
A rosamine derivative compound selectively produces fluorescent signals for embryonic stem cells and induced pluripotent stem cells, allowing for their detection and isolation through fluorescent bioimaging probes, enabling identification and purification without genetic reporter systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current methods of isolation and characterization of stem cells are used (morphology and marker protein expression detection), then stem cells can be identified, but the process requires a long time and antibody reactions which make the cells unsuitable for further usage
Solution Approach 1:
The patent replaces the mechanical/chemical system of antibody binding and immunostaining with a fluorescent dye-based detection system. The rosamine derivative compounds directly bind to stem cells and produce fluorescent signals, eliminating the need for antibody reactions and lengthy washing/incubation steps, thus reducing detection time while maintaining identification accuracy
Solution Approach 2:
The patent utilizes fluorescent color changes as a detection mechanism. The rosamine derivative compounds exhibit selective fluorescent signals when bound to stem cells, allowing for rapid visual identification and characterization of stem cells through fluorescence microscopy or flow cytometry, significantly faster than traditional immunostaining methods
2Measurement precision
If current methods of stem cell isolation are used (morphology and marker expression), then stem cells can be characterized, but the process is lengthy and reduces cell suitability for further usage
Solution Approach 1:
The patent substitutes the complex multi-step immunostaining process with a simple fluorescent dye staining procedure. The rosamine derivatives directly stain stem cells with high specificity, allowing for rapid characterization without compromising cell viability or suitability for subsequent applications such as transplantation or differentiation studies
Solution Approach 2:
The patent employs small-molecule fluorescent dyes that are inexpensive, stable, and do not require complex preparation or storage conditions compared to antibodies. These dyes can be applied quickly and washed away easily, making the process highly efficient and suitable for high-throughput stem cell characterization
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
The rosamine derivative compound enables efficient and early-stage detection and isolation of stem cells, facilitating stem cell research and therapy by providing a rapid and effective means to identify and separate stem cell populations.
Implementation Method 1
The rosamine derivative compound of formula (I) selectively produces fluorescent signals for embryonic stem cells or induced pluripotent stem cells
Data Source
AI summary
The present invention relates to methods of detecting, in a sample, embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells. These methods include providing a sample potentially containing such cells and providing a rosamine derivative compound of the formula (I):where the rosamine derivative compound selectively produces fluorescent signals for embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells. These methods also include the steps of contacting the sample with the rosamine derivative compound and detecting the presence of the embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells based on fluorescent signals emitted by the sample following said contacting.