LAMP-2B regulates human cardiomyocyte function by mediating autophagosome–lysosome fusion

Abstract excerpt

Mutations in lysosomal-associated membrane protein 2 ( LAMP-2 ) gene are associated with Danon disease, which often leads to cardiomyopathy/heart failure through poorly defined mechanisms. Here, we identify the LAMP-2 isoform B (LAMP-2B) as required for autophagosome–lysosome fusion in human cardiomyocytes (CMs). Remarkably, LAMP-2B functions independently of syntaxin 17 (STX17), a protein that is essential for...

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