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Updated: Dec 26, 2025
Assessing Stem Cell DNA Integrity for Cardiac Cell Therapy
Published on: January 25, 2019
STAT3 for Cardiac Regenerative Medicine: Involvement in Stem Cell Biology, Pathophysiology, and Bioengineering
Shu Nakao1,2, Tasuku Tsukamoto1,2, Tomoe Ueyama1,2
1Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan.
Insights
Regenerative medicine for heart failure shows promise using pluripotent stem cells. Activating Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) signaling is a key strategy for cardiac repair and regeneration.
Area of Science:
- Cardiovascular Medicine
- Stem Cell Biology
- Regenerative Medicine
Background:
- Heart disease is a leading cause of death globally, with limited treatments for heart failure.
- Pluripotent stem cells offer potential for cardiac regeneration due to their self-renewal and differentiation capabilities.
- Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) signaling is crucial for stem cell function and has diverse roles in cardiac cells.
Purpose of the Study:
- To review the role of STAT3 in stem cell biology and cardiac pathophysiology.
- To explore the potential of JAK/STAT3 signaling as a therapeutic target for cardiac regeneration.
- To introduce novel strategies for myocardial regeneration involving STAT3 activation.
Main Methods:
- Literature review focusing on STAT3 in stem cell biology and cardiac regeneration.
- Analysis of the role of JAK/STAT3 signaling in myocardial differentiation, cell cycle re-entry, and anti-apoptosis.
- Discussion of engineered artificial receptors for STAT3 signal activation.
Main Results:
- STAT3 signaling is integral to the induction, maintenance, and differentiation of pluripotent stem cells.
- JAK/STAT3 pathway activation promotes myocardial differentiation, myocyte repair after injury, and protects against apoptosis.
- Targeting STAT3 activity presents a promising avenue for developing cardiac regeneration therapies.
Conclusions:
- STAT3 plays a pivotal role in both stem cell biology and cardiac repair mechanisms.
- Modulating JAK/STAT3 signaling holds significant therapeutic potential for treating heart failure.
- Engineered receptor systems offer innovative approaches to activate endogenous STAT3 for myocardial regeneration.
Abstract:
Heart disease is the most common cause of death in developed countries, but the medical treatments for heart failure remain limited. In this context, the development of cardiac regeneration therapy for severe heart failure is important. Owing to their unique characteristics, including multiple differentiation and infinitive self-renewal, pluripotent stem cells can be considered as a novel source for regenerative medicine. Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) signaling plays critical roles in the induction, maintenance, and differentiation of pluripotent stem cells. In the heart, JAK/STAT3 signaling has diverse cellular functions, including myocardial differentiation, cell cycle re-entry of matured myocyte after injury, and anti-apoptosis in pathological conditions. Therefore, regulating STAT3 activity has great potential as a strategy of cardiac regeneration therapy. In this review, we summarize the current understanding of STAT3, focusing on stem cell biology and pathophysiology, as they contribute to cardiac regeneration therapy. We also introduce a recently reported therapeutic strategy for myocardial regeneration that uses engineered artificial receptors that trigger endogenous STAT3 signal activation.
