Nejvíce citovaný článek - PubMed ID 23201021
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.
- Klíčová slova
- Axons, CDK13, Craniofacial development, Neurite outgrowth, Orofacial clefts, Trigeminal ganglion,
- 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
- Názvy látek
- cyklin-dependentní kinasy MeSH
- Dcx protein, mouse MeSH Prohlížeč
- protein doublecortin MeSH
Facial shape is the basis for facial recognition and categorization. Facial features reflect the underlying geometry of the skeletal structures. Here, we reveal that cartilaginous nasal capsule (corresponding to upper jaw and face) is shaped by signals generated by neural structures: brain and olfactory epithelium. Brain-derived Sonic Hedgehog (SHH) enables the induction of nasal septum and posterior nasal capsule, whereas the formation of a capsule roof is controlled by signals from the olfactory epithelium. Unexpectedly, the cartilage of the nasal capsule turned out to be important for shaping membranous facial bones during development. This suggests that conserved neurosensory structures could benefit from protection and have evolved signals inducing cranial cartilages encasing them. Experiments with mutant mice revealed that the genomic regulatory regions controlling production of SHH in the nervous system contribute to facial cartilage morphogenesis, which might be a mechanism responsible for the adaptive evolution of animal faces and snouts.
- Klíčová slova
- cartilage induction, cleft palate, developmental biology, embryonic development, facial shaping, mammalian face, mouse, regenerative medicine, sonic hedgehog, stem cells,
- MeSH
- chondrocyty cytologie účinky léků metabolismus MeSH
- čichová sliznice cytologie účinky léků růst a vývoj metabolismus MeSH
- embryo savčí MeSH
- homeoboxový protein Nkx-2.2 MeSH
- homeodoménové proteiny genetika metabolismus MeSH
- integrasy genetika metabolismus MeSH
- kolagen typ II genetika metabolismus MeSH
- lidé MeSH
- maxilofaciální vývoj genetika MeSH
- morfogeneze účinky léků genetika MeSH
- mozek účinky léků růst a vývoj metabolismus MeSH
- mutageny aplikace a dávkování MeSH
- myši transgenní MeSH
- myši MeSH
- nosní chrupavky cytologie účinky léků růst a vývoj metabolismus MeSH
- obličej anatomie a histologie embryologie MeSH
- obličejové kosti cytologie účinky léků růst a vývoj metabolismus MeSH
- proteiny dánia pruhovaného MeSH
- proteiny hedgehog genetika metabolismus MeSH
- rekombinantní fúzní proteiny genetika metabolismus MeSH
- signální transdukce * MeSH
- tamoxifen aplikace a dávkování MeSH
- transkripční faktory genetika metabolismus MeSH
- vývojová regulace genové exprese MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- myši MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- Col2a1 protein, mouse MeSH Prohlížeč
- Cre recombinase MeSH Prohlížeč
- homeoboxový protein Nkx-2.2 MeSH
- homeodoménové proteiny MeSH
- integrasy MeSH
- kolagen typ II MeSH
- mutageny MeSH
- proteiny dánia pruhovaného MeSH
- proteiny hedgehog MeSH
- rekombinantní fúzní proteiny MeSH
- SHH protein, human MeSH Prohlížeč
- tamoxifen MeSH
- transkripční faktory MeSH