IL-22 Agonists for Intestinal Barrier Protection

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Solution Overview

Problem

Current treatments for microbial disorders, such as Inflammatory Bowel Disease (IBD), lack effective methods to modulate the host immune response against attaching and effacing bacterial pathogens, which can lead to severe infections and complications.

Innovation Solution

The use of IL-22 polypeptides or IL-22 agonists, including IL-22-Fc fusion polypeptides, nucleic acids, fusion polypeptides, antibodies, or humanized antibodies that bind to IL-22, IL-22R, or IL-22BP, to enhance the host's immune response and treat microbial disorders by increasing IL-22 activity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current treatments for microbial disorders are used, then existing therapeutic options are available, but they lack effective methods to modulate the host immune response against attaching and effacing bacterial pathogens

Engineering Contradiction:
Improveeffectiveness of treatmentVSAvoidability to modulate immune response
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent changes the parameter of immune response modulation by introducing IL-22 and its agonists, which specifically enhance the host's immune response against attaching and effacing bacterial pathogens. This resolves the contradiction by providing a targeted immunomodulatory approach that improves treatment effectiveness while adapting to the specific pathogen mechanism

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses IL-22 as an intermediary substance that mediates between the host immune system and the bacterial pathogen. IL-22 acts as a cytokine that enhances epithelial cell function and immune response, serving as a bridge that improves treatment effectiveness without directly attacking the pathogen, thus resolving the contradiction between reliability and adaptability

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If IL-22 or its agonists are administered to enhance immune response, then protection of intestinal epithelial barrier and prevention of bacterial invasion is improved, but the complexity of treatment options increases

Engineering Contradiction:
Improveprotection of intestinal epithelial barrierVSAvoidcomplexity of treatment options
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by using IL-22 as a multi-functional agent that simultaneously protects the intestinal epithelial barrier, prevents bacterial invasion, and modulates immune response. This single agent addresses multiple therapeutic needs, resolving the contradiction between improved reliability and treatment complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent employs preliminary action by administering IL-22 or its agonists before severe infection sets in, or at the early stages of infection, to prevent bacterial invasion and enhance the host's defensive capabilities. This proactive approach improves barrier protection while maintaining relatively simple treatment protocols

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2514436B1Il-22 for use in treating microbial disorders
Publication Date: 2017.12.20 GENENTECH INC
  • EP2514436B1 patent drawingFigure 1A~1H
  • EP2514436B1 patent drawingFigure 2A~2F
  • EP2514436B1 patent drawingFigure 3A~3G

AI summary

The present invention relates to compositions and methods for treatment of microbial disorder by modulation of the host immune response. More particularly, the present invention relates to compositions that mediate an anti-microbial immune response, and methods of treating a microbial infection using such compositions.