VLA-1 Antagonist Therapy for Stroke Ischemic Damage Reduction

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Solution Overview

Problem

Current treatments for stroke, traumatic brain injury, and spinal cord injury lack effective methods to reduce ischemic damage and improve outcomes, with existing therapies often having limited efficacy in minimizing infarct size and improving symptoms.

Innovation Solution

Administration of a VLA-1 antagonist, such as a VLA-1 antibody or peptide, which inhibits the interaction between VLA-1 and its ligands, thereby reducing ischemic injury by blocking VLA-1 activity and modulating cell signaling, thereby reducing infarct size and improving symptoms in neuronal tissue, brain, and spinal cord.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing stroke treatments are used, then standard care is provided, but efficacy in reducing infarct size and improving outcomes is limited

Engineering Contradiction:
Improveefficacy in reducing infarct sizeVSAvoidclinical outcomes improvement
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent introduces a VLA-1 antagonist as an intermediary substance that blocks the interaction between VLA-1 integrin and its ligands (collagen, laminin). This mediator prevents pathological cell adhesion and signaling processes that contribute to ischemic damage, thereby improving treatment efficacy without directly affecting the core stroke pathology

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention changes the biochemical parameter of cell adhesion strength by modulating VLA-1 activity. By administering VLA-1 antagonists, the patent alters the binding affinity between integrins and extracellular matrix components, thereby changing the physiological parameters of cell signaling and adhesion to reduce infarct size and improve outcomes

Inventive Principle:
Principle #35Parameter changes

2Reliability

If VLA-1 antagonist is administered, then ischemic damage is reduced and infarct size is minimized, but the complexity of treatment increases

Engineering Contradiction:
Improvereduction of ischemic damageVSAvoidtreatment complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and targets a specific pathological mechanism (VLA-1 mediated adhesion and signaling) from the complex cascade of events following stroke. By isolating and blocking this single key pathway with a specific antagonist, the treatment achieves efficacy while maintaining relative simplicity compared to addressing all downstream effects of ischemia

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention segments the complex stroke pathology into discrete targetable pathways, focusing specifically on the VLA-1 integrin pathway. This segmentation allows for targeted intervention at a specific point in the disease cascade, simplifying the overall treatment approach while maintaining high efficacy in reducing ischemic damage

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10119979B2Methods of treating stroke and traumatic brain injury using humanized AQC2 anti-VLA-1 antibodies
Publication Date: 2018.11.06 BIOGEN MA INC
  • US10119979B2 patent drawing
  • US10119979B2 patent drawing

AI summary

Methods and compositions for treating stroke are disclosed.