Venerdì 28 novembre - ore 11:00
Aula seminari, NICO
Non canonical Drosha pathway regulates hippocampal neural stem cell differentiation
Embryology and Stem Cell Biology, Department of Biomedicine - University of Basel
Self-renewing and multipotent neural stem cells (NSCs) reside in the dentate gyrus of the adult mammalian hippocampus. The Microprocessor, a multimeric complex of the ribonuclease Drosha and the RNA binding protein DGCR8, drives miRNA biogenesis.
The Microprocessor also has miRNA-independent functions, directly targeting and cleaving stem-loop hairpin structures of mRNAs and destabilizing the transcripts. We found that RNAse III Drosha regulates NSC maintenance and inhibits oligodendrocyte fate commitments in adult NSCs.
Drosha-CLIP (cross-linking and immunoprecipitation) experiment shows that Drosha binds the mRNAs of critical oligodendrocyte and gliogenic transcription factors. Taken together our findings reveal a new miRNA-independent action of the Microprocessor in the maintenance of adult NSCs and control of oligodendrocyte differentiation.
Ospite: Annalisa Buffo
Since 2001, this meeting represented an important event for basic and clinical researchers working on this emerging scientific topic. We will address state-of-the-art approaches in the field of steroids and nervous system, including behavior, epigenetics, genomic and non-genomic actions, the vitamin D, neurodegenerative and psychiatric disorders, and the interference among endocrine disruptors and steroid signaling.
Un malfunzionamento dei mitocondri, le centrali energetiche delle cellule, causa lo sviluppo della SCA28, una forma ereditaria di atassia. Dopo 10 anni di studi e grazie al sostegno di Fondazione Telethon, la scoperta del team di ricerca guidato dai proff. Alfredo Brusco e Filippo Tempia dell’Università di Torino e NICO. Lo studio pubblicato sulla prestigiosa rivista Neurobiology of Disease.