Transgenic Animal MCP-1 Promoter Reporter Model
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Solution Overview
Problem
Current studies on MCP-1 expression are largely limited to in vitro experiments, and there is a need for an animal model to study MCP-1 expression in vivo and screen for agents that regulate or treat inflammation disorders where MCP-1 plays a key role.
Innovation Solution
A transgenic animal is developed with a recombinant nucleic acid molecule encoding reporter proteins under the control of a MCP-1 promoter, allowing for the monitoring of MCP-1 expression in vivo through fluorescent, bioluminescent, or nuclear imaging, enabling the identification of agents that regulate MCP-1 expression or act as anti-inflammatory agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If in vitro experiments are used to study MCP-1 expression, then experimental control is improved, but physiological relevance deteriorates
Solution Approach 1:
The patent introduces a transgenic animal model as an intermediary system between in vitro experiments and complex in vivo studies. The animal carries a reporter gene under the control of the MCP-1 promoter, allowing researchers to study MCP-1 expression patterns in a physiologically relevant in vivo environment while maintaining experimental control through genetic manipulation and controlled breeding.
2Measurement precision
If transgenic animal models are developed to study MCP-1 expression in vivo, then physiological relevance is improved, but device complexity deteriorates
Solution Approach 1:
The patent extracts the MCP-1 promoter sequence from the complex genomic context and isolates its function by linking it to a reporter gene in a controlled transgenic construct. This allows the specific function of the MCP-1 promoter to be studied independently, simplifying the analysis while maintaining physiological relevance through in vivo expression.
Solution Approach 2:
The patent applies local quality by using a reporter gene that is specifically activated only in cells and tissues where the endogenous MCP-1 promoter would normally be active. This localized expression pattern allows researchers to study MCP-1 expression in specific physiological contexts without the complexity of system-wide changes.
3Difficulty of detecting and measuring
If reporter proteins are used to monitor MCP-1 expression, then detection capability is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent creates a functional copy of the MCP-1 promoter-reporter gene construct that can be integrated into the transgenic animal genome. This copied genetic element faithfully reproduces the MCP-1 expression pattern, allowing indirect detection of MCP-1 activity through the reporter protein signal, thereby improving detection capability while accepting some variability in integration precision.
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 transgenic animal model effectively mimics endogenous MCP-1 expression, facilitating the identification of agents that modulate MCP-1 levels, thereby providing a valuable tool for understanding and treating inflammatory disorders.
Implementation Method 1
the reporter protein is enhanced green fluorescent protein (EGFP)
Implementation Method 2
the reporter protein is a fusion protein of EGFP, luciferase and herpes simplex virus type 1 thymidine kinase (HSV1-TK)
Data Source
AI summary
The present invention relates to a transgenic animal, which comprises in its genome a recombinant polynucleotide encoding one or more reporter proteins and a monocyte chemotactic protein-1 (MCP-1) promoter, wherein the one or more reporter proteins are expressed under the control of the MCP-1 promoter. A method for monitoring endogenous expression of MCP-1 in vivo is also provided, which is useful for identifying a regulator of the expression of MCP-1 or an anti-inflammatory agent.