ArticleCirculation2025
Cellular Reprogramming by PHF7 Enhances Cardiac Function Following Myocardial Infarction.
Article in Circulation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Biomaterial-Assisted Stem Cell Therapy and Exosome Delivery in Myocardial Infarction: A Narrative Review.Biomimetics (Basel, Switzerland) · 2026Review
- Spatiotemporal precision interventions for cardiac repair and regenerative therapy.Experimental & molecular medicine · 2026Review
- Activation of developmental transcription factors using RNA technology promotes heart repair.bioRxiv : the preprint server for biology · 2026Article
- In Vivo Targeted Reprogramming of Cardiac Fibroblasts for Heart Regeneration: Advances and Therapeutic Potential.Bioengineering (Basel, Switzerland) · 2025Review
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Authors and funding
10 authors.
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Abstract
backgroundDirect reprogramming of fibroblasts to cardiomyocytes is a potentially curative strategy for ischemic heart disease. However, current reprogramming strategies require excessive factors due to epigenetic barriers of adult mouse and human fibroblasts. Recently, we identified the epigenetic factor PHF7 from a screen of gene-regulatory factors as the most potent activator of adult fibroblast-to-cardiomyocyte reprogramming in vitro.
methodsThrough in vitro assays coupled with genome-wide studies, we interrogated the ability of PHF7 to induce reprogramming events with minimal reprogramming factors. Using in vivo murine models of myocardial infarction and intramyocardial reprogramming factor delivery coupled with genetic fibroblast lineage tracing, we delivered retroviral PHF7 cocktails to the murine heart and interrogated reprogramming events as well as the acute and chronic functional impact of these cocktails. Deployment of 10X multiomics in vivo generated a combinatorial single-nucleus transcriptomic and epigenomic atlas of PHF7 reprogramming in the infarcted heart.
resultsGenome-wide in vitro transcriptomic analyses revealed that addition of PHF7 to Tbx5 or Mef2c and Tbx5 in fibroblasts induced global reprogramming through upregulation of unique cardiac transcriptomes. Further, PHF7 itself upregulated cardiac master regulators when overexpressed in dermal fibroblasts. Delivery of PHF7 cocktails to the infarcted murine heart induced in vivo reprogramming events and improved cardiac function and remodeling in both acute and chronic heart failure. When delivered as a single factor to the infarcted heart, PHF7 improved survival, function, and fibrosis up to 16 weeks after injury. Genetic lineage tracing analyses revealed that PHF7 induced bona fide fibroblast-to-cardiomyocyte reprogramming events in vivo. Comprehensive multiomics of PHF7 cocktails in the infarcted heart exposed the impact of PHF7 on chromatin structure, generating population-level shifts in nonmyocyte and cardiomyocyte cellular identity.
conclusionsHere, we report the ability of a single epigenetic factor, PHF7, to induce reprogramming and improve cardiac function in the mouse heart following myocardial infarction. Together, these data support the premise that a single factor, when deployed into the infarcted mouse heart, can induce reprogramming events and recover function in the ischemic heart.
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