A2A Adenosine Receptor Agonists for Diabetic Nephropathy

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Solution Overview

Problem

Current methods for treating diabetic kidney disease, specifically diabetic nephropathy, are limited, and there is a need for additional therapeutic approaches beyond ACE inhibitors and AT II receptor antagonists, as these can have detrimental effects on some individuals and do not adequately address renal injury and inflammation.

Innovation Solution

Administration of an effective amount of an A2A adenosine receptor agonist, potentially in combination with type IV phosphodiesterase inhibitors, to treat and prevent diabetic nephropathy, leveraging the agonists' documented benefits in experimental models.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If ACE inhibitors or AT II receptor antagonists are used to control blood pressure in diabetic nephropathy, then blood pressure is reduced and proteinuria decreases, but detrimental effects occur in some patients and renal injury is not adequately addressed

Engineering Contradiction:
Improveeffectiveness of treatmentVSAvoiddetrimental effects on patients
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent shifts from using ACE inhibitors or AT II receptor antagonists to using A2A adenosine receptor agonists, changing the pharmacological parameter of the treatment approach. This parameter change allows for blood pressure control and proteinuria reduction while avoiding the detrimental effects associated with conventional therapies, particularly in patients who cannot tolerate ACE inhibitors.

Inventive Principle:
Principle #35Parameter changes

2Stress or pressure

If conventional blood pressure medications are used to manage diabetic nephropathy, then blood pressure control is achieved, but renal injury and inflammation are not adequately treated

Engineering Contradiction:
Improveblood pressure controlVSAvoidrenal injury and inflammation
Core Design Contradiction:
Stress or pressureVSObject-generated harmful factors

Solution Approach 1:

The A2A adenosine receptor agonist provides multi-functional benefits by simultaneously controlling blood pressure, reducing proteinuria, and treating renal injury and inflammation. This universal approach addresses multiple pathological aspects of diabetic nephropathy with a single therapeutic agent, unlike conventional medications that primarily focus on blood pressure control.

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

3Productivity

If ACE inhibitors are used to reduce proteinuria and slow kidney disease progression, then greater potency is achieved, but monitoring is required due to potential detrimental effects

Engineering Contradiction:
Improvepotency in reducing proteinuriaVSAvoidneed for monitoring
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent positions A2A adenosine receptor agonists as an alternative therapeutic option that can be used particularly in patients who cannot tolerate ACE inhibitors. While the agonists demonstrate potency in reducing proteinuria and slowing disease progression, they offer the advantage of avoiding the monitoring requirements and detrimental effects associated with conventional ACE inhibitor therapy.

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

The use of A2A adenosine receptor agonists, such as ATL146e, demonstrates therapeutic potential by reducing inflammation, minimizing urinary albumin excretion, restoring plasma creatinine levels, and improving endothelial function, thereby providing a novel approach to managing diabetic kidney disease.

Implementation Method 1

Administration of an effective amount of an A2A adenosine receptor agonist... to treat and prevent diabetic nephropathy

Methodology Applied
Scientific EffectAdenosine receptor agonism:

Implementation Method 2

The effects of adenosine A2A agonists can be enhanced by type IV phosphodiesterase inhibitors such as, for example, rolipram

Methodology Applied
Scientific EffectPhosphodiesterase inhibition:

Data Source

PatentUS7396825B2Agonists of A2A adenosine receptors for treatment of diabetic nephropathy
Publication Date: 2008.07.08 UNIV OF VIRGINIA PATENT FOUND
  • US7396825B2 patent drawing
  • US7396825B2 patent drawing
  • US7396825B2 patent drawing

AI summary

The present invention provides a therapeutic method for treating diabetic kidney disease, e.g., diabetic nephropathy that includes the administration of an effective amount of an A2A adenosine receptor agonist. Optionally, the method includes administration of a type IV PDE inhibitor.