Key result
Pharmacological and genetic depletion of gp130 in preweaning mice significantly impaired cardiomyocyte proliferation, caused myocardial thinning, and led to left ventricular systolic dysfunction.
Why the study?
Although cardiomyocytes proliferate in the early postnatal period, the regulatory mechanisms and physiological importance of this process have not been clarified.
The IL-6/gp130/JAK/STAT3 axis is crucial for the postnatal functional development of the left ventricle by promoting cardiomyocyte proliferation.
Answers are grounded in this paper and cite their sources.
No immediate clinical implications; leaves open gp130 as a target for cardiac regeneration research.
Although cardiomyocytes undergo proliferation in the early postnatal period, the regulatory mechanisms and physiological importance of this process have not been clarified. We found that the pharmacological and genetic depletion of gp130 in preweaning mice resulted in significant impairment of cardiomyocyte proliferation, thinning of the myocardium, and systolic dysfunction of the left but not right ventricle by perturbing JAK/STAT3 signaling. Thus, the IL-6/gp130/JAK/STAT3 axis is crucial for the postnatal functional development of the left ventricle.
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Kawagishi et al. (2022) studied Cardiomyocyte proliferation and postnatal functional development. Pharmacological and genetic depletion of gp130 was evaluated on Cardiomyocyte proliferation, myocardial thickness, and systolic function. Pharmacological and genetic depletion of gp130 in preweaning mice significantly impaired cardiomyocyte proliferation, caused myocardial thinning, and led to left ventricular systolic dysfunction.
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