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Scoperto il gene "dentista" che ripara il sorriso: si chiama DLK1 e agisce stimolando una particolare popolazione di cellule staminali responsabile della produzione della dentina, il tessuto che costituisce il corpo del dente sotto lo smalto.
Il suo meccanismo d'azione, scoperto negli incisivi a crescita continua dei topi, può essere manipolato: nei primi test sugli animali ha dimostrato di favorire la rigenerazione, aprendo la strada a nuove cure per denti cariati o danneggiati da traumi.
A indicarlo è lo studio pubblicato sulla rivista Nature Communications da una collaborazione internazionale coordinata dall'università britannica di Plymouth.
"Le cellule staminali sono molto importanti, perché in futuro potrebbero essere usate in laboratorio per rigenerare tessuti danneggiati o persi a causa di malattie, quindi è cruciale capire come funzionano", afferma il coordinatore dello studio, Bing Hu.
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