Invasive Microvesicle Detection via ARF6 Protein Assay
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Solution Overview
Problem
Current methods lack sensitivity and effectiveness for early detection of cancer metastasis, particularly in conditions like ovarian, prostate, breast, glioma, and melanoma, as standardized screening techniques are inadequate, leading to late-stage diagnosis and treatment.
Innovation Solution
The isolation and identification of invasive microvesicles from tumor cells, specifically through centrifugation and assaying for proteins such as ARF6, Vamp3, MHC class I, MT1-MMP, and β1-integrin, which are indicative of tumor invasiveness, allowing for the assessment of tumor invasiveness in patients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If standardized screening methods are used for cancer detection, then the diagnostic process is simple and accessible, but the sensitivity and effectiveness for early detection of metastasis are insufficient
Solution Approach 1:
The patent extracts and isolates specific invasive microvesicles from complex biological samples by targeting unique surface proteins (ARF6, Vamp3, MHC class I, MT1-MMP, β1-integrin). This extraction approach enables selective detection of metastatic microvesicles amidst other cellular components, achieving high detection sensitivity without requiring complex whole-sample analysis
Solution Approach 2:
The patent uses specific surface proteins as intermediary markers to detect the presence and invasiveness of tumor-derived microvesicles. These protein markers serve as mediators that link the detection system to the target microvesicles, enabling indirect but highly sensitive detection of metastatic potential through assays for ARF6, Vamp3, MHC class I, MT1-MMP, and β1-integrin
2Reliability
If invasive microvesicles are detected using multiple protein markers, then the accuracy of tumor invasiveness assessment is improved, but the complexity of the assaying process increases
Solution Approach 1:
The patent segments the detection process into distinct functional components: isolation of microvesicles based on size and surface properties, followed by separate detection of specific protein markers (ARF6, Vamp3, MHC class I, MT1-MMP, β1-integrin). This segmentation allows each marker to be assessed for its specific contribution to invasiveness, improving overall assessment reliability while enabling modular implementation of the assay
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
This approach enables the detection of invasive microvesicles in biological samples, providing a means to assess tumor invasiveness and potentially facilitate early diagnosis and treatment of cancer by identifying specific protein markers associated with metastasis.
Implementation Method 1
by centrifugation and assaying for proteins
Data Source
AI summary
The present application relates to the isolation and analysis of populations of microvesicles and the identification of invasive microvesicles in the populations such as populations of microvesicles that are shed by tumor cells. Invasive microvesicles from tumor cells contain a variety of specific proteins, such as ARF6.