Tessuti encefalici in grado di assemblarsi spontaneamente formando una struttura simile al cervelletto sono stati ottenuti in provetta in un centro per la biologia evolutiva giapponese. Stando a quanto riferisce la rivista Cell Reports, il tessuto cerebrale è stato prodotto inducendo le staminali embrionali umane a differenziarsi in cellule specifiche grazie al fattore di crescita denominato FGF2. Il sistema ha poi dimostrato di funzionare in modo efficiente.
E' la prova di come sia possibile ricreare in laboratorio insiemi estremamente complessi. Si schiude quindi la prospettiva di curare lesioni nervose e di sviluppare reti di neuroni. Uno degli obbiettivi di questo tipo di ricerca è infatti la medicina rigenerativa, con la possibilità di sostituire parti del corpo danneggiate con tessuti sani coltivati.
ANSA/dg
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