iPSC-Derived Lactocytes for Customizable Human Milk-Like Products

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Solution Overview

Problem

Current methods for producing human milk are limited by the scarcity of human breast milk donors and the inability to efficiently replicate its complex composition using existing infant formula manufacturing processes, necessitating a more sustainable and customizable solution.

Innovation Solution

A method involving the culture of mammalian induced pluripotent stem cells (miPSCs) with bone morphogenic protein 4 (BMP4) and retinoic acid (RA) to generate embryoid bodies, which are then grown to produce mammary gland cells and secrete a mammalian milk-like product, such as human milk, with customizable compositions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If human breast milk is used as the only source, then the quality and composition are optimal, but the supply is limited and subject to regulatory constraints

Engineering Contradiction:

Improvequality of milkVSAvoidavailability of milk

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent creates artificial mammary gland organoids that replicate the structure and function of human mammary glands using stem cells. These organoids can produce milk-like substances with customizable compositions, serving as a copy of the natural mammary gland system that is not limited by donor availability or regulatory constraints

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent enables customization of milk composition by altering culture medium parameters and growth conditions. The milk-like product can be tailored to have specific protein, fat, and carbohydrate ratios, as well as adjusted levels of bioactive molecules, allowing optimization for different nutritional needs without being constrained by natural human milk variability

Inventive Principle:

Principle #35Parameter changes

2Productivity

If current infant formula manufacturing processes are used, then production is scalable, but the composition cannot replicate human milk complexity

Engineering Contradiction:

Improvescalability of productionVSAvoidcomposition accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent uses controllable culture parameters (growth factors, media composition, oxygen levels) to precisely regulate the secretion profile of mammary organoids. This allows accurate replication of human milk's complex composition including proteins, lipids, carbohydrates, and bioactives, while maintaining scalability through standardized culture systems

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs monitoring of organoid development and milk secretion through markers and analytical methods. This feedback enables optimization of culture conditions to achieve target composition specifications, ensuring both accuracy of milk replication and scalability of the production process

Inventive Principle:

Principle #23Feedback

3Adaptability or versatility

If stem cells from human milk are used, then differentiation capability is achieved, but the source remains limited to human donors

Engineering Contradiction:

Improvedifferentiation capabilityVSAvoidsource availability

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent uses induced pluripotent stem cells (iPSCs) that can be generated from various human sources (fibroblasts, blood cells) and differentiated into mammary gland lineages. This copying approach maintains the differentiation capability while eliminating dependence on milk donors, as iPSCs can be sourced from excess tissue or blood samples

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent creates a universal system where iPSCs can be differentiated into mammary organoids for milk production, and the same stem cell platform can be used to generate organoids for other purposes (tissue engineering, drug testing). This multi-functionality increases source availability and reduces dependence on any single source

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

This approach increases differentiation efficiency, reduces production time, and enhances the yield and quality of milk-like products, offering a sustainable and customizable alternative to human breast milk.

Implementation Method 1

culturing mammalian induced pluripotent stem cells (miPSCs) in a culture medium comprising bone morphogenic protein 4 (BMP4) and retinoic acid (RA) to generate embryoid bodies (EBs)

Methodology Applied

Scientific EffectDifferentiation:

Implementation Method 2

use of BMP4 and RA for increasing the differentiation efficiency of mammalian induced pluripotent stem cell (miPSCs) into mammary-gland progenitor cells

Methodology Applied

Scientific EffectSignal transduction:

Implementation Method 3

Secreting the mammalian milk like product from said lactocytes from mammalian induced pluripotent stem cells (miPSC)

Methodology Applied

Scientific EffectSecretion:

Data Source

PatentUS20250297216A1Method for producing milk like products

Publication Date: 2025.09.25 SOCIETE DES PRODUITS NESTLE SA

AI summary

A method for producing mammary gland cells and a method of producing a mammalian milk like product, for example a human milk like product comprising generating lactocytes derived from mammalian induced pluripotent stem cells (miPSC), for example human induced pluripotent stem cells (hiPSC), and expressing the mammalian milk like product, for example the human milk like product from lactocytes.