Identification of Mitofusin 1 and Complement Component 1q Subcomponent Binding Protein as Mitochondrial Targets in Systemic Lupus Erythematosus

Mitochondria are organelles that exhibit several bacterial features, such as a double‐stranded genome with hypomethylated CpG islands, formylated proteins, and cardiolipin‐containing membranes. In systemic lupus erythematosus (SLE), mitochondria and their inner components are released into the extracellular space, potentially eliciting a proinflammatory response from the immune system. While cardiolipin and mitochondrial DNA and RNA are confirmed targets of autoantibodies, other antigenic mitochondrial proteins in SLE remain to be identified. The present study was undertaken to characterize the protein repertoire recognized by antimitochondrial antibodies (AMAs) in patients with SLE.

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