Hypothermic In Vitro Stem Cell Cultivation for Pluripotency

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Solution Overview

Problem

Existing methods for cultivating stem cells in vitro fail to maintain their pluripotent or omnipotent potential and often lead to differentiation, with hypothermic treatments causing stress and viability loss.

Innovation Solution

A method involving hypothermic conditions at defined temperatures (0-15°C) and oxygen levels (up to 21% v/v) for 4 days to 4 weeks, using a suitable medium, enriches stem cells, achieving 70-100% viability and retention of pluripotent potential.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If hypothermic treatment is applied to cultivate stem cells, then cell enrichment is achieved, but cell stress increases and viability decreases

Engineering Contradiction:

Improvestem cell enrichmentVSAvoidcell viability

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The patent applies parameter changes by optimizing temperature (0-15°C range), oxygen concentration (1-10% range), and cultivation duration (4 days to 4 weeks) to achieve stem cell enrichment while maintaining viability. This resolves the contradiction by finding the optimal parameter window where hypothermic treatment enriches stem cells without causing excessive stress or viability loss.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent converts the harmful effect of hypothermic stress into a beneficial selection mechanism. By applying controlled hypothermic conditions, non-stem cells undergo stress-induced death while stem cells survive and proliferate, transforming the harmful stress effect into a useful enrichment mechanism that selectively eliminates unwanted cell types.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Reliability

If conventional cultivation methods are used, then stem cells remain viable, but differentiation occurs and pluripotent potential is lost

Engineering Contradiction:

Improvestem cell viabilityVSAvoidpluripotent potential

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent changes the cultivation parameters from conventional conditions to hypothermic conditions (0-15°C) with controlled oxygen levels (1-10%). This parameter change simultaneously maintains stem cell viability and prevents differentiation, preserving pluripotent potential while achieving cell enrichment.

Inventive Principle:

Principle #35Parameter changes

3Quantity of substance

If hypothermic treatment duration is extended, then stem cell enrichment increases, but treatment stress accumulates

Engineering Contradiction:

Improvestem cell enrichmentVSAvoidtreatment stress

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent optimizes the treatment duration parameter within a specific range (4 days to 4 weeks) and combines it with controlled temperature (0-15°C) and oxygen levels (1-10%). This coordinated parameter optimization achieves maximum stem cell enrichment while limiting cumulative stress effects by maintaining conditions within the viable window.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250333705A1Method for cultivating stem cells in vitro

Publication Date: 2025.10.30 SPULER SIMONE

AI summary

The present disclosure relates to a genetically modified human muscle satellite cell as well as to methods of treating a human subject suffering from a disorder, the method comprising administering to the subject in need thereof the genetically modified human muscle satellite cell.