A Novel Dysferlin-Binding Kinase CK2α Promotes Plasma Membrane Repair in Dysferlinopathy - PubMed
5 hours ago
- #CK2α kinase
- #Membrane repair
- #Dysferlinopathy
- Dysferlinopathy is an adult-onset muscular dystrophy caused by mutations in the dysferlin gene, inherited in an autosomal recessive manner.
- Dysferlin plays a key role in plasma membrane repair, but many aspects of its signaling pathways and protein interactions remain unclear.
- The study identified protein kinase CK2α as a novel dysferlin-binding protein, which accumulates at membrane injury sites in mouse skeletal muscle.
- CK2α knockout cells showed delayed membrane repair, while overexpression in dysferlin-deficient muscle improved repair.
- CK2α phosphorylates annexin A1, a protein involved in plasma membrane repair that binds to dysferlin.
- The interplay between dysferlin, CK2α, and phosphorylated annexin A1 presents a novel therapeutic target for enhancing membrane repair.