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Author Spotlight: Exploring Plasma Membrane Repair Mechanisms with Innovative Thermoplasmonic Puncturing
Published on: January 19, 2024
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Annexins and plasma membrane repair
Sophia N Koerdt1, Arsila P K Ashraf1, Volker Gerke1
1Institute of Medical Biochemistry, Centre for Molecular Biology of Inflammation, University of Münster, Münster, Germany.
Current Topics in Membranes
|October 16, 2019
Summary
Cellular repair of plasma membrane injuries involves calcium influx and protein recruitment. Annexins, calcium-regulated proteins, play a crucial role in resealing the membrane and cytoskeletal remodeling during wound repair.
Area of Science:
- Cell Biology
- Biochemistry
Background:
- Plasma membrane injury triggers a cell-autonomous repair process.
- Calcium influx at the injury site is a key initiator of membrane repair.
- Calcium-regulated proteins are recruited to the wound site to aid in repair.
Purpose of the Study:
- To discuss the role of annexins in plasma membrane wound repair.
- To highlight annexins as calcium-regulated proteins involved in cellular repair mechanisms.
Main Methods:
- The study reviews existing evidence on annexin function in membrane repair.
- Focuses on the calcium-dependent association of annexins with acidic phospholipids.
- Discusses the temporal and spatial accumulation of annexins at injury sites.
Main Results:
- Annexins bind to acidic phospholipids in a calcium-dependent manner.
- Annexin accumulation at plasma membrane injury sites is temporally controlled.
- Annexins are implicated in controlling membrane rearrangements during repair, potentially with proteins like dysferlin.
Conclusions:
- Annexins are critical calcium-regulated proteins in plasma membrane wound repair.
- Their function involves membrane resealing and cytoskeletal remodeling.
- Evidence from model systems supports their role in cellular repair.
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