Polypeptide Ion Channel Modulation via Magnetic Field Heating

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Solution Overview

Problem

Current methods for modulating cells and biological systems, particularly using thermal sensitive ion channels and ferritin, lack effective remote control mechanisms to alter ion flow and membrane potential efficiently.

Innovation Solution

Development of polypeptides comprising thermal sensitive ion channels linked to domain 5 of kininogen 1, combined with nucleic acid molecules, which are administered to cells and modulated using static magnetic or electromagnetic fields to alter ion flow and membrane potential.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If thermal sensitive ion channels and ferritin are used to modulate cells, then ion flow and membrane potential can be altered, but effective remote control mechanisms are lacking

Engineering Contradiction:
Improveremote control capabilityVSAvoidcontrol efficiency
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces domain 5 of kininogen 1 as an intermediary component that bridges the thermal sensitive ion channel and ferritin. This domain contains a ferritin-binding motif that specifically binds to ferritin, creating a controlled linkage mechanism. When electromagnetic fields are applied, ferritin generates heat locally that activates the ion channel, providing reliable remote control of cellular processes.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention creates a composite polypeptide structure combining three functional elements: thermal sensitive ion channel, domain 5 of kininogen 1 (with ferritin-binding motif), and ferritin. This composite structure integrates thermal sensing, heat generation, and ion channel activation into a single functional unit that responds reliably to electromagnetic field stimulation.

Inventive Principle:
Principle #40Composite materials

2Measurement precision

If polypeptides comprising thermal sensitive ion channels linked to domain 5 of kininogen 1 are developed, then precise modulation of ion flow is achieved, but device complexity increases

Engineering Contradiction:
Improvemodulation precisionVSAvoidpolypeptide structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The polypeptide is segmented into distinct functional domains: the thermal sensitive ion channel portion, the domain 5 of kininogen 1 portion containing the ferritin-binding motif, and the ferritin portion. Each segment performs a specific function, allowing precise control over ion flow activation while maintaining modular structure that simplifies understanding and engineering.

Inventive Principle:
Principle #1Segmentation

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 solution enables precise modulation of ion flow and membrane potential, potentially treating diseases by altering cellular behavior through targeted application of magnetic or electromagnetic fields.

Implementation Method 1

In some circumstances, ferritin can be heated by radiofrequency fields

Methodology Applied
Scientific EffectElectromagnetic heating: Dielectric Heating

Implementation Method 2

Thermal sensitive ion channels have been studied for several years. In certain instances, heat can alter ion flow or membrane potential in membranes that comprise thermal sensitive ion channels

Methodology Applied
Scientific EffectThermal sensitivity:

Implementation Method 3

administering a composition comprising a nucleic acid molecule to at least one cell and applying a static magnetic field or an electromagnetic field, where the cell is modulated upon applying the static magnetic field or the electromagnetic field

Methodology Applied
Scientific EffectMagnetic field modulation: Magnetic Field

Data Source

PatentUS10696728B2Polypeptides, related nucleic acids, and their uses for cell modulation and treatments
Publication Date: 2020.06.30 LIU CHUNLEI
  • US10696728B2 patent drawing
  • US10696728B2 patent drawing
  • US10696728B2 patent drawing

AI summary

Disclosed herein are inventive polypeptides (e.g., comprising a thermal sensitive ion channel or variant thereof and a domain 5 of kininogen 1 or variant or fragment thereof) and nucleic acid molecules encoding inventive polypeptides. Also disclosed are methods for modulating a cell comprising administering certain compositions (e.g., pharmaceutical compositions of the nucleic acid molecule) and applying a static magnetic field or an electromagnetic field. Methods for treating diseases or disorders in an animal (e.g., a human) comprising administering certain compositions (e.g., pharmaceutical compositions of the nucleic acid molecule) and applying a static magnetic field or an electromagnetic field, are further disclosed.