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. 2021 Oct 9;43(3):558–582. doi: 10.1210/endrev/bnab035

Graphical Abstract.

Graphical Abstract

By modulating the trafficking of key secretory proteins, PCSK9 is implicated in the regulation of major diseases. Secreted PCSK9 shortens the half-life of cell surface receptors, such as LDLR and MHC-I, by escorting them into the lysosomal pathway. The functional consequences of PCSK9 activity in different diseases is indicated.