CDK13-related disorder, also known as congenital heart defects, dysmorphic facial features and intellectual developmental disorder (CHDFIDD) is associated with mutations in the CDK13 gene encoding transcription-regulating cyclin-dependent kinase 13 (CDK13). Here, we focused on the development of craniofacial structures and analyzed early embryonic stages in CHDFIDD mouse models, with one model comprising a hypomorphic mutation in Cdk13 and exhibiting cleft lip/palate, and another model comprising knockout of Cdk13, featuring a stronger phenotype including midfacial cleft. Cdk13 was found to be physiologically expressed at high levels in the mouse embryonic craniofacial structures, namely in the forebrain, nasal epithelium and maxillary mesenchyme. We also uncovered that Cdk13 deficiency leads to development of hypoplastic branches of the trigeminal nerve including the maxillary branch. Additionally, we detected significant changes in the expression levels of genes involved in neurogenesis (Ache, Dcx, Mef2c, Neurog1, Ntn1, Pou4f1) within the developing palatal shelves. These results, together with changes in the expression pattern of other key face-specific genes (Fgf8, Foxd1, Msx1, Meis2 and Shh) at early stages in Cdk13 mutant embryos, demonstrate a key role of CDK13 in the regulation of craniofacial morphogenesis.
- MeSH
- cyklin-dependentní kinasy metabolismus genetika MeSH
- embryo savčí metabolismus MeSH
- embryonální vývoj * genetika MeSH
- fenotyp MeSH
- lebka embryologie patologie MeSH
- mentální retardace genetika MeSH
- modely nemocí na zvířatech * MeSH
- mutace genetika MeSH
- myši MeSH
- nervus trigeminus embryologie MeSH
- neurogeneze * genetika MeSH
- obličej embryologie abnormality MeSH
- protein doublecortin MeSH
- rozštěp patra genetika patologie embryologie MeSH
- rozštěp rtu genetika patologie embryologie MeSH
- vývojová regulace genové exprese * MeSH
- zvířata MeSH
- Check Tag
- myši MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
