Receptor protein-tyrosine phosphatase signalling in development
J den Hertog1, C Blanchetot, A Buist
1Hubrecht Laboratory, Netherlands Institute for Developmental Biology, Utrecht. hertog@niob.knaw.nl
The International Journal of Developmental Biology
|February 11, 2000
Summary
Receptor Protein-Tyrosine Phosphatases (RPTPs) are crucial for cell signaling. This study explores RPTP functions in vertebrate development, focusing on the LAR-subfamily, CD45, and RPTPalpha.
Area of Science:
- Molecular Biology
- Developmental Biology
- Cell Signaling
Background:
- Receptor Protein-Tyrosine Phosphatases (RPTPs) are key transmembrane signaling molecules.
- Their roles in invertebrate development are well-studied, but less is known in vertebrates.
- Mammalian studies have revealed insights into RPTP ligands, regulation, and substrates.
Purpose of the Study:
- To introduce the RPTP superfamily.
- To discuss the function of the LAR-subfamily of RPTPs.
- To focus on the function and signaling of the hematopoietic RPTP, CD45, and RPTPalpha.
Main Methods:
- Literature review and synthesis of existing research on RPTPs.
- Focus on genetic studies in invertebrates and cell-based studies in mammals.
- Detailed examination of specific RPTPs: LAR-subfamily, CD45, and RPTPalpha.
Main Results:
- RPTPs transduce signals across cell membranes.
- Significant knowledge gaps exist regarding RPTPs in vertebrate development.
- Mammalian studies provide a foundation for understanding RPTP mechanisms.
Conclusions:
- RPTPs are vital signaling proteins with diverse roles.
- Further research is needed to elucidate RPTP functions in vertebrate development.
- This review highlights key RPTPs, including CD45 and RPTPalpha, for future investigation.
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