Gene Transfer Efficiency Prediction via Cell Size Measurement

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Solution Overview

Problem

Conventional methods for measuring gene transfer efficiency in cells, such as flow cytometry, are time-consuming and require complex steps, making them inefficient for rapid and simple analysis.

Innovation Solution

Measuring the size of transgenic animal cells, specifically their diameter, and using this measurement as an index to predict gene transfer efficiency, allowing for a simpler and more efficient method compared to conventional techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If flow cytometry is used to measure gene transfer efficiency, then measurement precision is improved, but measurement time and operational complexity increase

Engineering Contradiction:
Improvegene transfer efficiency measurementVSAvoidmeasurement time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The invention extracts the essential information needed for gene transfer efficiency measurement from the complex flow cytometry process and concentrates it into a single key parameter - cell size. By identifying and measuring only this critical parameter (cell diameter) using simple image analysis, the method eliminates the need for complex multi-parameter flow cytometry while maintaining measurement accuracy.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention creates a simplified copy of the measurement process that replicates the essential function of flow cytometry without its complexity. Instead of using complex flow cytometry with multiple stains and parameters, the method uses simple image analysis to measure cell size, which serves as a proxy indicator for gene transfer efficiency, thereby reducing time and complexity while maintaining precision.

Inventive Principle:
Principle #26Copying

2Measurement precision

If flow cytometry with manual cell staining is used, then measurement precision is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvegene transfer efficiency measurementVSAvoidmanual staining step
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The invention extracts and eliminates the manual staining step from the measurement process. By identifying cell size as the critical parameter that directly reflects gene transfer efficiency, the method removes the need for manual cell staining operations while maintaining measurement precision through automated image analysis.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention enables the cells to serve their own identification function through their inherent size changes. Transfected cells naturally exhibit different sizes compared to non-transfected cells, allowing the measurement system to automatically distinguish and quantify gene transfer efficiency without requiring external manual staining or labeling interventions.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If conventional measurement methods are used, then measurement precision is maintained, but productivity deteriorates

Engineering Contradiction:
Improvegene transfer efficiencyVSAvoidmeasurement speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The invention extracts the most time-consuming and complex components from the measurement process (manual staining, multiple flow cytometry parameters) and retains only the essential measurement of cell size. This extraction enables rapid automated measurement while maintaining precision, significantly improving productivity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention replaces the mechanical and manual operations of flow cytometry with automated image analysis technology. By using digital imaging and computer-based measurement of cell size, the method eliminates manual operations and accelerates the measurement process while maintaining or improving precision through more efficient data processing.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20250052740A1Method for predicting gene transfer rate
Publication Date: 2025.02.13 TAKEDA PHARMA CO LTD
  • US20250052740A1 patent drawing
  • US20250052740A1 patent drawing
  • US20250052740A1 patent drawing

AI summary

Disclosed is a method for predicting the gene transfer efficiency of animal cells, comprising (1) measuring the size of transgenic animal cells, and (2) predicting the gene transfer efficiency based on values measured in step (1).