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Per la prima volta è stato osservato "in diretta" e in tre dimensioni lo sviluppo del sistema nervoso in un organismo, cellula per cellula. Il risultato, ottenuto negli Stati Uniti e pubblicato sulla rivista Nature Methods, è stato possibile grazie a un nuovo criterio di calcolo e a tecniche di microscopia molto sofisticate.
I ricercatori del centro Janelia dell'Istituto Howard Hughes hanno seguito lo sviluppo delle cellule nervose nell'embrione di un moscerino della frutta. La stessa tecnica, nata dalla collaborazione tra esperti di neuroscienze di biologia dello sviluppo e di biofisica, ha permesso di osservare l'accrescimento embrionale del sistema nervoso del pesce zebra e di un topo.
Il software si chiama ANext, è messo a punto dal coordinatore della ricerca, Philipp Keller ed è ora liberamente accessibile all'intera comunità scientifica. Questa possibilità si combina poi con un microscopio hi-tech, che permette di catturare immagini in 3D con velocità e precisione senza precedenti, seguendo l'evoluzione di una cellula per ore o giorni.
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