Serum Factor Purification for Accurate Inflammatory Models
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Solution Overview
Problem
Current methods for studying inflammatory responses and developing treatments for autoimmune diseases and sepsis are hindered by the lack of understanding of why certain animal models, like mice and baboons, are resistant to microbial toxins, and the inability to create models that accurately represent human physiology.
Innovation Solution
The development of methods to purify and utilize compounds from mammalian serum, such as hemopexin, vanin-3, transthyretin, and dermcidin, which modulate inflammatory responses by reducing cytokine production, allowing for the creation of more sensitive animal models and potential therapeutic treatments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional animal models (mice, baboons) are used to study inflammatory responses, then research can be conducted with available models, but the models do not accurately represent human physiology and show resistance to microbial toxins
Solution Approach 1:
The patent extracts specific serum factors (hemopexin, transthyretin, dermcidin, vanin-3) from mammalian serum that are responsible for modulating inflammatory responses. By isolating these specific components, the invention creates purified compounds that can be applied to animal models to enhance their sensitivity to microbial toxins, thereby improving the reliability of the models without requiring adaptation of the entire animal system.
Solution Approach 2:
The patent uses purified serum factors as intermediary substances that mediate between the animal model system and human inflammatory responses. These factors serve as bridges to transfer the desired sensitivity characteristics from human serum to animal models, allowing the models to better represent human physiology while maintaining the advantages of using established animal species.
2Manufacturing precision
If serum factors are purified from mammalian serum, then compounds that modulate inflammatory responses can be obtained, but the purification process requires multiple complex steps
Solution Approach 1:
The patent segments the complex serum purification process into distinct functional stages: initial fractionation by ammonium sulfate precipitation to separate serum proteins, followed by chromatofocusing to isolate specific inflammatory modulators. This segmentation allows each step to target specific properties of the serum factors, achieving high purity through a systematic multi-stage approach rather than attempting single-step purification.
Solution Approach 2:
The patent utilizes parameter changes in the purification process, specifically changing the pH gradient during chromatofocusing to separate serum factors based on their isoelectric points. This parameter-based separation method efficiently isolates inflammatory modulators from other serum proteins, achieving high manufacturing precision while managing process complexity through controlled physical-chemical transitions.
3Ease of manufacture
If compounds from serum are used to treat inflammatory diseases, then therapeutic options can be developed, but the compounds must be isolated and characterized from complex serum mixtures
Solution Approach 1:
The patent performs preliminary fractionation of serum using ammonium sulfate precipitation before detailed analysis. This preliminary action concentrates the inflammatory modulators in specific fractions, making subsequent detection and characterization more efficient. By pre-separating the complex serum mixture into manageable fractions, the difficulty of identifying active compounds is significantly reduced while maintaining ease of manufacture.
Solution Approach 2:
The patent replaces complex mechanical purification methods with chromatofocusing, which uses electrostatic interactions and pH gradients to separate serum factors. This substitution simplifies the detection and measurement process by providing natural separation based on intrinsic protein properties, reducing the need for extensive mechanical manipulation and characterization steps.
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
These compounds enable the development of animal models that better represent human inflammatory responses and provide potential therapeutic options for autoimmune diseases and sepsis by modulating cytokine production and reducing inflammatory reactions.
Implementation Method 1
adding ammonium sulfate between 40% and 60% saturation to serum to separate the serum into a precipitate and a supernatant
Implementation Method 2
using chromatofocusing to separate the precipitate into fractions
Implementation Method 3
use of a MonoQ high pressure liquid chromatography column
Implementation Method 4
analytical sizing chromatography
Implementation Method 5
Sodium Dodecyl Sulfate gel electrophoresis
Data Source
AI summary
Disclosed are methods of purifying compounds that reduce or prevent an inflammatory response in a mammal, use of such compounds in treating a mammal having or being at risk of developing inflammation, as well as serum containing such purified compounds. Also disclosed are animal models that are more representative of humans in the study of inflammatory responses or as screening tools for discovering or developing new therapeutics or lead candidate compounds for inhibition of an inflammatory response.