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ADAM10: Possible functions in enamel development
Shifa Shahid1, Atsushi Ikeda1, Michelle C Layana1
1Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, United States.
Frontiers in Physiology
|December 12, 2022
Summary
A Disintegrin And Metalloproteinase (ADAM10) functions as a sheddase, crucial for cell movement and protein cleavage. Its regulation by tetraspanins and role in enamel development, particularly with COL17A1 and RELT, are highlighted.
Area of Science:
- Biochemistry
- Cell Biology
- Developmental Biology
Background:
- ADAM10 is a membrane-bound metalloproteinase acting as a sheddase, cleaving numerous cell surface proteins.
- It plays a key role in Notch signaling and its localization is mediated by six distinct tetraspanins, influencing substrate specificity.
- ADAM10 expression patterns in developing mouse teeth suggest a role in enamel formation.
Purpose of the Study:
- To review the function of ADAM10 and its regulation by tetraspanins.
- To explore the potential role of ADAM10 in enamel development and formation.
- To discuss ADAM10's cleavage of proteins like COL17A1 and RELT in the context of enamel malformations.
Main Methods:
- Literature review of ADAM10 function, tetraspanin regulation, and roles in biological processes.
- Analysis of ADAM10 expression during mouse tooth development.
- Examination of genetic mutations in COL17A1 and RELT associated with enamel defects.
Main Results:
- ADAM10 cleaves a wide array of substrates and is regulated by tetraspanins, affecting its specificity.
- ADAM10 expression in ameloblasts ceases during enamel maturation, coinciding with the cessation of cell movement and enamel thickening.
- Mutations in ADAM10 substrates COL17A1 and RELT lead to enamel malformations in humans and mice.
Conclusions:
- ADAM10, through its sheddase activity and tetraspanin-mediated regulation, is likely important for cell movement during enamel development.
- ADAM10 may regulate key proteins such as COL17A1 and RELT, which are essential for proper enamel formation.
- Further investigation into ADAM10's precise mechanisms in enamel development is warranted.
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