Immortalized Myogenic Cell Line Differentiation Capacity
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Solution Overview
Problem
Livestock farming has a significant carbon footprint and environmental impact, and existing methods for producing cell-based meat face challenges in maintaining myogenic differentiation capacity over extended culture periods, leading to reduced productivity and consistency in cell line adaptation.
Innovation Solution
Culturing immortalized cell lines in a medium containing Activin A inhibitors, BMP inhibitors, WNT activators, and epigenetic modulators, combined with introducing polynucleotides encoding myogenic regulatory factors, enhances myogenic differentiation capacity, thereby improving the production of cell-based meat products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If immortalized cell lines are cultured for extended periods (100+ population doubling levels) to achieve full cell line adaption and commercial-scale production, then cell line adaptation and productivity are improved, but myogenic differentiation capacity is lost (decreased Pax7 expression, decreased MyHC1 expression, decreased ability to form myotubes)
Solution Approach 1:
The patent applies preliminary action by introducing polynucleotides encoding myogenic regulatory factors (MYOD1, MYOG, MEF2C) into immortalized cell lines before extended culture. This genetic modification预先 establishes the myogenic differentiation capacity, ensuring it is maintained even after 100+ population doubling levels during long-term culture and commercial-scale production.
Solution Approach 2:
The patent changes the genetic parameters of immortalized cell lines by introducing exogenous polynucleotides encoding myogenic regulatory factors. This parameter change (genetic modification) fundamentally alters the cell line's behavior, enabling maintenance of myogenic differentiation capacity (Pax7 expression, MyHC1 expression, myotube formation) throughout extended culture periods that would otherwise cause loss of this capacity.
2Ease of manufacture
If cell lines are adapted into desired media and culture format over long periods (1-3 months), then ease of manufacture and commercial viability are improved, but myogenic differentiation capacity deteriorates
Solution Approach 1:
The patent applies preliminary action by genetically modifying cell lines with polynucleotides encoding myogenic regulatory factors before the adaptation process. This ensures that even during the 1-3 month adaptation period into desired media and culture formats, the cells maintain their myogenic differentiation capacity, which would otherwise deteriorate during this extended adaptation timeframe.
Solution Approach 2:
The patent changes the genetic parameters of cell lines by introducing exogenous polynucleotides, which fundamentally alters how the cells respond to culture conditions. This parameter change enables the cells to maintain manufacturing precision (myogenic differentiation capacity) while undergoing the ease of manufacture improvements (adaptation into desired media and culture formats).
Data Source
AI summary
The present disclosure relates to methods for improving myogenic differentiation capacity of a cell line or an immortalized cell line. For example, the present disclosure relates to methods of exposing an immortalized cell line (e.g., an immortalized fibroblast cell line) to culture media comprising signaling pathway agonists, antagonist, or a combination thereof in order to improve differentiation capacity. In another example, the present disclosure relates to methods of improving differentiation capacity of a cell line or an immortalized cell line where the method includes transforming an immortalized cell line with one or more myogenic regulatory factors and exposing the immortalized cell line to culture media comprising signaling pathway agonists, antagonists, or a combination thereof.