ArticleFrontiers in cell and developmental biology2025
Mandibular extracellular vesicles mediate morphogenesis and mineralization of tooth germs in miniature swine through the miR-206/HDAC4 signaling axis.
Article in Frontiers in cell and developmental biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Reciprocal communication between odontogenic tissues underpins the complexity of tooth morphogenesis. Despite mandible serving as the developmental niche and functional platform for tooth germs, their reciprocal signaling mechanisms remain underexplored. Histone acetylation plays a pivotal role in maintaining long-term regulatory equilibrium and physiological homeostasis by establishing stable gene expression patterns. However, whether stable histone acetylation signatures exist during tooth germ morphogenesis and how they might ensure developmental fidelity remain unreported. Methods: Extracellular vesicles were isolated from E40 miniature pig mandibles, with bioinformatic analysis identifying miR-206 as a key miRNA targeting the epigenetic regulator HDAC4. Mechanistic validation utilized dual-luciferase reporter assays, qRT-PCR, and Western blotting to confirm target interactions Results: Conclusions: Our identification of the exosomal miR-206/HDAC4 signal axis redefines the mandible as an active epigenetic modulator of odontogenesis. This vesicle-mediated regulation enables long-range delivery of epigenetic effectors-revealing a paradigm shift in tooth development and a druggable target for tooth regeneration.
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