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Published on: February 13, 2021
Pax genes and organogenesis: Pax9 meets tooth development
H Peters1, A Neubüser, R Balling
1GSF Research Center for Environment and Health, Institute for Mammalian Genetics, Neuherberg, Germany. hpeters@gsf.de
European Journal of Oral Sciences
|April 16, 1998
Summary
Pax9 is a gene crucial for tooth development. Gene targeting revealed that Pax9 is essential for mice to form teeth beyond the initial bud stage, highlighting its role in odontogenesis.
Area of Science:
- Developmental Biology
- Genetics
- Molecular Biology
Background:
- Pax genes are transcription factors vital for embryonic development.
- Pax9 shows specific expression patterns during mouse embryogenesis, particularly in areas of future tooth formation.
- The precise function of Pax9 in development is under investigation.
Purpose of the Study:
- To investigate the role of Pax9 in mouse embryogenesis.
- To determine the necessity of Pax9 for tooth development.
Main Methods:
- Gene targeting was used to create a Pax9 null allele in mice.
- Expression patterns of Pax9 were analyzed during embryogenesis.
Main Results:
- Pax9 expression is detected in mandibular arch mesenchyme, marking early tooth development sites.
- Mice lacking functional Pax9 (null allele) exhibit defects in tooth formation.
- Pax9 is required for tooth development to progress past the bud stage.
Conclusions:
- Pax9 is essential for tooth development in mice.
- Pax9 is a key factor involved in the molecular mechanisms of odontogenesis.
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