CpG ODN-miR-142 Compounds for Myeloid Leukemia Treatment

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Solution Overview

Problem

Current treatments for acute myeloid leukemia (AML), particularly secondary AML and blast crisis chronic myelogenous leukemia, are ineffective and often exclude these patients from clinical trials, highlighting a significant unmet need for novel and more effective therapies.

Innovation Solution

The development of compounds comprising a CpG oligodeoxynucleotide (ODN) covalently bonded to a hybridized nucleic acid sequence, where the hybridized sequence includes a miR-142 passenger strand sequence hybridized to a miR-142 guide strand sequence, which are administered to patients to treat myeloid leukemia.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current therapies are used to treat secondary AML and blast crisis CML, then treatment is provided, but treatment effectiveness is poor and patient outcome remains poor

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidpatient outcome
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent changes the molecular parameter by targeting miR-142, a microRNA that is downregulated in secondary AML and blast crisis CML. By restoring miR-142 expression through CpG ODN therapy, the treatment effectively modifies the molecular profile of the leukemia cells, leading to improved treatment response and patient outcomes compared to conventional therapies.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses CpG ODNs as intermediary molecules that mediate the restoration of miR-142 expression. These CpG ODNs act as intermediaries between the external treatment and the internal cellular mechanism, binding to TLR9 and triggering the upregulation of miR-142, thereby improving treatment effectiveness in secondary AML and blast crisis CML patients.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If conventional therapies are applied to secondary AML and blast crisis CML patients, then treatment is administered, but these patients are often excluded from promising clinical trials

Engineering Contradiction:
Improveaccess to clinical trialsVSAvoidtreatment effectiveness
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent creates a universal treatment approach using CpG ODNs that can be applied across different subtypes of myeloid leukemia, including secondary AML and blast crisis CML. This multi-functional therapy restores miR-142 expression and improves outcomes in patients who were previously excluded from clinical trials, thereby enhancing both accessibility and effectiveness.

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

3Reliability

If miR-142 levels are reduced in leukemia patients, then disease progression occurs, but restoring miR-142 requires novel therapeutic compounds

Engineering Contradiction:
Improvedisease progression controlVSAvoidtherapeutic compound structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs CpG ODNs, which are relatively simple and cost-effective molecular compounds compared to complex protein-based therapies. These disposable-like molecules can be easily administered and rapidly degraded, providing a cost-effective solution for restoring miR-142 expression and controlling disease progression without requiring complex therapeutic compounds.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 demonstrate potential in effectively treating myeloid leukemia by targeting specific molecular pathways, thereby improving treatment outcomes for patients with poor prognostic factors such as secondary AML and blast crisis chronic myelogenous leukemia.

Implementation Method 1

the hybridized nucleic acid sequence comprises a miR-142 passenger strand sequence hybridized to a miR-142 guide strand sequence

Methodology Applied
Scientific EffectmiR-142 guide strand sequence hybridized to miR-142 passenger strand sequence:

Data Source

PatentUS20250195666A1MIR-142 compounds and uses thereof
Publication Date: 2025.06.19 CITY OF HOPE
  • US20250195666A1 patent drawing
  • US20250195666A1 patent drawing
  • US20250195666A1 patent drawing

AI summary

The disclosure provides, inter alia, compounds comprising Toll-like receptor 9-binding nucleic acid sequences and nucleic acid sequences comprising a microRNA-142 passenger strand sequence hybridized to a microRNA-142 guide strand sequence; pharmaceutical compositions comprising the compounds; and the use of the compounds and pharmaceutical compositions to treat myeloid leukemia.