F. Valtorta

Publications204
h-index59
Citations11,074
Highly Influential Citations423
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The synapsins: Key actors of synapse function and plasticity
View on Elsevier
Synaptic vesicle phosphoproteins and regulation of synaptic function.
TLDR
Current understanding of the mechanism by which synapsin I modulates communication between nerve cells is described and the properties and putative functions of other phosphoproteins associated with synaptic vesicles are reviewed.
View on PubMed
QuickPALM: 3D real-time photoactivation nanoscopy image processing in ImageJ
To the Editor: Although conventional microscopes have a reso-lution limited by diffraction to about half the wavelength of light, several recent advances have led to microscopy methods that achieve…
View on Nature
Mutations in GDI1 are responsible for X-linked non-specific mental retardation
TLDR
The results show that both functional and developmental alterations in the neuron may account for the severe impairment of learning abilities as a consequence of mutations in GDI1, emphasizing its critical role in development of human intellectual and learning abilities.
View on Springer
Neurotransmitter release: fusion or 'kiss-and-run'?
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SYN1 loss-of-function mutations in autism and partial epilepsy cause impaired synaptic function.
TLDR
It is demonstrated that SYN1 is a novel predisposing gene to ASDs, in addition to epilepsy, and the hypothesis that a disturbance of synaptic homeostasis underlies the pathogenesis of both diseases is strengthened.
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Arx Is a Direct Target of Dlx2 and Thereby Contributes to the Tangential Migration of GABAergic Interneurons
TLDR
Although Arx has additional functions independent of the Dlx pathway, it is established a direct genetic relationship that controls critical steps in the development of telencephalic GABAergic neurons, contributing to elucidating the genetic hierarchy that likely underlies the etiology of a variety of human neurodevelopmental disorders.
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Protein Kinase A-Mediated Synapsin I Phosphorylation Is a Central Modulator of Ca2+-Dependent Synaptic Activity
TLDR
Data define a hierarchical crosstalk between cAMP- and CaM-dependent cascades and point to synapsin as a major effector of PKA in the modulation of activity-dependent SV exocytosis, which is primarily caused by calmodulin-dependent activation of cAMP pathways rather than by direct activation of CaM kinases.
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Synaptophysin I controls the targeting of VAMP2/synaptobrevin II to synaptic vesicles.
TLDR
Fluorescent chimeras of vesicle-associated membrane protein (VAMP) 2, its highly homologous isoform VAMP1 and synaptotagmin I (SytI) were expressed in hippocampal neurons in culture and data support a role for SypI in directing the correct sorting of VAMP2 in neurons and demonstrate that a direct interaction between the two proteins is required in order to exert its effect.
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Synaptophysin: leading actor or walk-on role in synaptic vesicle exocytosis?
TLDR
The main results of the studies on Syp are summarized, and it is explained why it is believed that Syp plays a major role in SV trafficking.
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