Related Experiment Video
Updated: May 8, 2026
09:16
Suppression of Pro-fibrotic Signaling Potentiates Factor-mediated Reprogramming of Mouse Embryonic Fibroblasts into Induced Cardiomyocytes
Published on: June 3, 2018
Designed Minibinders Rewire Receptor Signaling to Enable Functional Human Myogenic Reprogramming
Riya Keshri1,2, Zachary Foreman2,3, Phillip Barrett2
1Department of Biochemistry, University of Washington, Seattle, United States.
Biorxiv : the Preprint Server for Biology
|May 7, 2026
Summary
Scientists used AI to design synthetic proteins that reprogram human cells into muscle cells. This breakthrough offers a new way to regenerate muscle tissue and combat sarcopenia, a common age-related condition.
Area of Science:
- Biotechnology
- Regenerative Medicine
- Cell Biology
Background:
- Sarcopenia, the loss of muscle mass, presents a significant health challenge.
- Direct myogenic somatic cell reprogramming for muscle regeneration is limited by control over cell fate signaling.
- Existing methods lack precise control over the signaling pathways that dictate cell differentiation.
Purpose of the Study:
- To overcome limitations in controlling cell fate during myogenic reprogramming.
- To develop AI-designed synthetic ligands for precise receptor modulation.
- To enable functional muscle tissue regeneration through controlled cell transdifferentiation.
Main Methods:
- Screening de novo minibinders to identify effective protein cocktails.
- Utilizing AI-designed receptor modulators to control extracellular signaling.
- Investigating the roles of FGFR1/2c, ALK1, TGFBR2, and gp130 signaling pathways.
- Engineering functional muscle tissues from reprogrammed human cells.
Main Results:
- A synthetic protein cocktail, C6-DPC, was identified to drive efficient human fibroblast-to-muscle transdifferentiation.
- C6-DPC reprogrammed signaling by activating pro-myogenic and suppressing anti-myogenic pathways.
- Inhibition of inflammatory signaling via gp130 further enhanced cell conversion.
- Engineered tissues from reprogrammed cells demonstrated robust structural and metabolic maturation, generating significant contractile forces.
Conclusions:
- AI-designed programmable synthetic ligands can rewrite receptor-level signaling to direct cell fate.
- This approach enables functional muscle tissue regeneration, offering a potential therapeutic strategy for sarcopenia and muscle disorders.
- Precise control over cell signaling pathways is key to overcoming barriers in regenerative medicine.
More Related Videos
Related Concept Videos
01:29Somatic to iPS Cell Reprogramming
Reprogramming alters the gene expression in somatic cells, transforming them into induced pluripotent stem (iPS) cells over several generations. Scientists can reprogram cells by introducing genes for four transcription factors—Oct4, Sox2, Klf4, and c-Myc (OSKM) by viral or non-viral methods. These factors are also known as Yamanaka factors after Shinya Yamanaka, who first generated iPS cells using mouse skin cells. Yamanaka was awarded the Nobel Prize in Physiology or Medicine in 2012 for this...
01:24Methods of Nuclear Reprogramming
Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for injury repair.