Methylation Detection Reagent Kit for Colorectal Cancer Screening
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Solution Overview
Problem
Current methods for detecting colorectal cancer are invasive, have low sensitivity, and are not widely popular due to complex operation steps, especially for early-stage detection, necessitating a highly sensitive and specific non-invasive method.
Innovation Solution
A detection reagent kit targeting specific methylation regions of the SDC2 and TFPI2 genes, such as chr8:96493351-96493635 and chr7:93890026-93890319, to improve sensitivity and specificity for early and accurate detection of colorectal cancer and adenoma.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If non-invasive detection methods such as FOBT and FIT are used, then the ease of operation is improved, but the detection sensitivity deteriorates
Solution Approach 1:
The patent changes the detection parameter from general fecal components (FOBT/FIT) to specific methylated DNA sequences of colorectal cancer-related genes. By targeting specific epigenetic modifications (methylation patterns) rather than general blood presence, the detection sensitivity is dramatically improved while maintaining the non-invasive nature of fecal sampling.
Solution Approach 2:
The patent extracts and detects specific methylated DNA sequences from the complex mixture of fecal material. By isolating and targeting only the methylated regions of specific genes (such as NDRG4, PAX8, etc.), the method achieves high sensitivity while keeping the sampling method simple and non-invasive.
2Measurement precision
If methylation detection technologies are used, then the detection sensitivity is improved, but the device complexity deteriorates
Solution Approach 1:
The patent segments the detection process into distinct modules: DNA extraction from fecal samples, bisulfite treatment to convert unmethylated cytosines, PCR amplification of specific methylated regions, and detection. This segmentation allows each step to be optimized independently and simplifies the overall system design while achieving high sensitivity.
Solution Approach 2:
The patent performs preliminary bisulfite treatment and methylation-specific PCR amplification before final detection. By pre-concentrating and enriching the methylated DNA sequences through targeted amplification, the subsequent detection step becomes simpler and more sensitive, reducing the complexity of the complete system.
3Productivity
If early detection methods are developed, then the productivity is improved, but the measurement precision deteriorates
Solution Approach 1:
The patent uses methylated DNA sequences as intermediary markers that appear early in carcinogenesis but can be detected with high precision. These methylation events serve as intermediate signals between normal cells and malignant cells, allowing early detection while maintaining high measurement precision through specific molecular targeting.
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 kit significantly enhances detection sensitivity and specificity, providing a reliable reference for early screening and diagnosis of colorectal cancer by focusing on specific methylation regions, improving AUC and diagnostic accuracy.
Implementation Method 1
Methylation is an epigenetic modification, and its abnormal changes may cause changes in DNA conformation and the mode of interactions between DNA and proteins etc., and accordingly control gene expression.
Data Source
AI summary
Provided are the use of a detection reagent for detecting the methylation of genes associated with colorectal cancer, and a kit. The kit comprises the detection reagent for detecting the methylation of genes associated with colorectal cancer.