Delftia Tsuruhatensis Composition for Blocking Malaria Transmission

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Solution Overview

Problem

The lack of effective vaccines and drugs, combined with resistance to anti-malarial drugs and insecticides, hampers the eradication of malaria, particularly in underdeveloped countries, necessitating new tools to block malaria transmission.

Innovation Solution

Utilizing Delftia tsuruhatensis bacteria to inhibit ookinetes and oocysts of Plasmodium parasites in mosquito midguts, thereby preventing malaria transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional anti-malarial drugs and insecticides are used, then malaria transmission is reduced, but resistance develops rendering these tools ineffective

Engineering Contradiction:
Improveeffectiveness of malaria controlVSAvoidresistance development
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent introduces Delftia tsuruhatensis bacteria as an intermediary organism that blocks malaria parasite transmission in mosquitoes through a novel mechanism. The bacteria colonize the mosquito midgut and prevent ookinete development, serving as a biological mediator that interrupts the parasite lifecycle without relying on drug or insecticide resistance pathways

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention changes the parameter of malaria control from chemical intervention (drugs/insecticides) to biological intervention (bacterial colonization). This parameter shift from pharmacological to microbiological control mechanisms bypasses resistance issues by utilizing a completely different mode of action that affects parasite development rather than killing it directly

Inventive Principle:
Principle #35Parameter changes

2Reliability

If vaccines and effective drugs are developed, then malaria transmission is blocked, but their availability and accessibility in underdeveloped countries remains limited

Engineering Contradiction:
Improvemalaria transmission blockingVSAvoidavailability and accessibility
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent employs a living bacterial system that can be administered through simple oral or topical routes, eliminating the need for complex vaccine manufacturing and distribution infrastructure. The D. tsuruhatensis bacteria serve as a self-replicating, low-cost biological agent that can be produced through standard fermentation techniques and delivered via inexpensive methods such as sugar water solutions

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

Solution Approach 2:

The D. tsuruhatensis bacteria exhibit self-service characteristics by autonomously colonizing the mosquito midgut and maintaining their protective function against parasite transmission. Once established, the bacteria self-multiply and continuously block parasite development without requiring repeated administrations or complex monitoring systems

Inventive Principle:
Principle #25Self-service

3Reliability

If new tools to block malaria transmission are implemented, then transmission is reduced, but the complexity of integrated approaches increases

Engineering Contradiction:
Improvetransmission blockingVSAvoidintegration of multiple approaches
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The D. tsuruhatensis bacteria provide multi-functional benefits by simultaneously blocking malaria parasite transmission while potentially offering other health benefits to mosquito populations. This single intervention serves multiple purposes: parasite blocking, mosquito health maintenance, and ecological compatibility, reducing the need for multiple separate control measures

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

Data Source

PatentEP3996726B1Delftia tsuruhatensis for reducing or preventing malaria parasite transmission and for preventing malaria
Publication Date: 2026.02.25 GLAXOSMITHKLINE INTPROP DEV LTD
  • EP3996726B1 patent drawingFigure 1
  • EP3996726B1 patent drawingFigure 2A~2B

AI summary

The present invention relates to a composition comprising bacteria of the Delftia genus, specifically a composition comprising Delftia tsuruhatensis as well as the bacteria itself for use in the prevention of malaria transmission and methods of using the compositions of the invention for reducing malaria and/or malaria parasite transmission.