Annexin A2 complexes with S100 proteins: structure, function and pharmacological manipulation

Area of Science:

• Molecular Biology
• Cell Biology
• Biochemistry

Background:

• Annexin A2 (AnxA2) is an abundant protein involved in intracellular vesicle fusion, membrane organization, and cell surface processes like protease regulation.
• AnxA2 is differentially expressed in malignant tissues, suggesting a role in tumor progression.
• AnxA2 interacts with Ca(2+)-dependent S100 adaptor proteins, a key aspect of its function.

Purpose of the Study:

• To review the biochemical evidence and functional significance of Annexin A2 (AnxA2) interactions with S100 proteins.
• To discuss recent advancements in developing inhibitors targeting AnxA2-S100 protein interactions.
• To explore the potential of these inhibitors in understanding AnxA2-S100 protein biology.

Main Methods:

• Literature review of biochemical and functional studies on AnxA2-S100 protein interactions.
• Analysis of recent research on inhibitors targeting these protein complexes.
• Discussion of the implications for AnxA2-S100 protein research.

Main Results:

• The interaction between AnxA2 and S100A10 is well-established, with other S100 proteins also shown to interact with AnxA2.
• Biochemical evidence supports these protein-protein interactions and their functional roles.
• Emerging studies focus on developing inhibitors for AnxA2-S100 protein interactions.

Conclusions:

• AnxA2-S100 protein interactions are critical for various cellular processes and implicated in cancer.
• Inhibitors targeting these interactions offer a promising avenue for further research and potential therapeutic development.
• Understanding these interactions is key to deciphering AnxA2's role in health and disease.