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Targeting the microenvironment may be the key to healing injured hearts - Video
Overview
A study recently published in Nature Cardiovascular Research has revealed a remarkable discovery that may have far-reaching implications for the treatment of heart disease.
Heart disease remains a leading cause of death worldwide, with myocardial infarction, also known as a heart attack, causing irreparable damage to cardiac muscle cells.While current treatments focus on alleviating symptoms and improving blood flow, they fall short in addressing the crucial issue of lost cardiomyocytes (CMs), leading to further complications such as heart failure.
The study reveals that regeneration of CMs requires a complex microenvironment, where a dynamic synergy between CMs, resident immune cells, and cardiac fibroblasts is the driving force behind cardiac renewal.Through intricate signalling mechanisms, these cell types co-ordinately instruct and support each other, facilitating CM proliferation and effectively repairing damaged heart tissue.
"Understanding heart regeneration on a molecular level is an important step towards developing innovative therapeutics that can facilitate CM regeneration," said researchers at theCardiomyocyte Renewal Laboratory and McGill Gene Editing Laboratory at The Texas Heart Institute."Our study challenges the existing paradigm, suggesting that targeting the microenvironment rather than a specific cell type is instrumental in healing the injured heart."
The findings of the research suggest that harnessing the body's natural regenerative ability could offer promising avenues for developing innovative therapies for the millions worldwide impacted by heart disease.
Reference: Rich Gang Li, Xiao Li, Yuka Morikawa, Francisco J. Grisanti-Canozo, Fansen Meng, Chang-Ru Tsai, Yi Zhao, Lin Liu, Jong Kim, Bing Xie, Elzbieta Klysik, Shijie Liu, Md Abul Hassan Samee, James F. Martin. YAP induces a neonatal-like pro-renewal niche in the adult heart. Nature Cardiovascular Research, 2024; DOI: 10.1038/s44161-024-00428-w