IL13RA2 Immunogenic Compounds for Tumor-Specific T-Cell Activation

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Solution Overview

Problem

Current cancer therapies face limitations such as imprecise specificity, collateral damage to normal tissues, low cure rates, and intrinsic drug resistance, with a significant percentage of patients developing resistance to immunotherapies, necessitating a different approach to break this barrier.

Innovation Solution

Development of antigenic peptides with amino acid similarity to tumor antigens, particularly IL13RA2, which are used in immunogenic compounds to induce a specific immune response against tumor cells, potentially overcoming resistance to immunotherapies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If standard cancer therapies (surgery, radiation, chemotherapy) are used, then tumor control is achieved, but collateral damage to normal tissues occurs and cure rate remains low

Engineering Contradiction:
Improvetumor control efficacyVSAvoidcollateral damage to normal tissues
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the immune system into specific T-cell populations that can be selectively activated against tumor antigens. By using antigenic peptides that bind to specific MHC molecules, the therapy targets only tumor cells expressing those antigens, leaving normal tissues unaffected. This segmentation approach replaces the non-specific damage of traditional therapies with precise immune cell-mediated tumor elimination.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces antigenic peptides as intermediaries that bridge the immune system and tumor cells. These peptides are derived from tumor antigens and serve as mediators to activate T-cells specifically against tumor cells. The peptides act as a communication bridge, allowing the immune system to recognize and attack tumor cells without damaging normal tissues, thus resolving the contradiction between tumor control and tissue protection.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If immunotherapies are used to treat cancer, then tumor-specific immune response is activated, but significant percentage of patients develop intrinsic resistance

Engineering Contradiction:
Improveimmune response activationVSAvoidresistance to immunotherapy
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by modifying the antigenic peptide sequences to optimize their binding affinity to specific MHC molecules. By changing the amino acid parameters of the peptides, the therapy enhances immune recognition and activation. Additionally, the patent changes the parameter of antigen diversity by using multiple different antigenic peptides targeting different tumor antigens, thereby overcoming patient heterogeneity and resistance through multi-targeted immune activation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent achieves universality by developing a platform that can target multiple different tumor antigens across various cancer types. The antigenic peptides are designed to bind to common MHC molecules (HLA-A*02:01, HLA-A*24:02) that are expressed on most human cells, making the therapy universally applicable. This multi-functional approach allows a single therapeutic strategy to work across different patients and cancer types, reducing intrinsic resistance.

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

3Productivity

If traditional therapies are used, then treatment is administered, but intrinsic drug resistance develops preventing cure

Engineering Contradiction:
Improvetreatment deliveryVSAvoidcure rate
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent replaces the mechanical/chemical system of traditional chemotherapy and radiation with a biological immune-mediated system. Instead of using drugs that non-specifically kill dividing cells, the therapy uses antigenic peptides to activate T-cells that specifically recognize and eliminate tumor cells. This substitution of mechanism fundamentally changes how treatment is delivered, using the patient's own immune system as the therapeutic agent, thereby overcoming intrinsic drug resistance and improving cure rates.

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

Data Source

PatentUS12447201B2Immunogenic compounds for cancer therapy
Publication Date: 2025.10.21 ENTEROME
  • US12447201B2 patent drawing
  • US12447201B2 patent drawing
  • US12447201B2 patent drawing

AI summary

The invention relates to an immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, the said antigenic peptide being selected in the group consisting of sequences described in the specification.