# Shanghai, Hong Kong researchers unlock key heart repair mechanism

https://mins.news/en/item/28122

- China News Service, 2026-08-21 07:22 UTC
- Science
- Original: http://www.ecns.cn/cns-wire/2026-08-21/detail-ihfimvaz1913695.shtml

> A joint Shanghai-Hong Kong team published a study in Science showing that, when major cardiac arteries are blocked during a heart attack, tiny capillaries can be reprogrammed into functional collateral arteries. The finding could support therapies that stimulate the heart to build new blood-supply networks for acute myocardial infarction and other ischemic heart diseases.