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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Sensory-Related Neural Activity Regulates the Structure of Vascular Networks in the Cerebral Cortex

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Lacoste, Baptiste [1] ; Comin, Cesar H. [2] ; Ben-Zvi, Ayal [1] ; Kaeser, Pascal S. [1] ; Xu, Xiaoyin [3] ; Costa, Luciano da F. [2] ; Gu, Chenghua [1]
Total Authors: 7
[1] Harvard Univ, Sch Med, Dept Neurobiol, Boston, MA 02115 - USA
[2] Univ Sao Paulo, IFSC, Sao Carlos, SP - Brazil
[3] Brigham & Womens Hosp, Dept Radiol, Boston, MA 02115 - USA
Total Affiliations: 3
Document type: Journal article
Source: NEURON; v. 83, n. 5, p. 1117-1130, SEP 3 2014.
Web of Science Citations: 37

Neurovascular interactions are essential for proper brain function. While the effect of neural activity on cerebral blood flow has been extensively studied, whether or not neural activity influences vascular patterning remains elusive. Here, we demonstrate that neural activity promotes the formation of vascular networks in the early postnatal mouse barrel cortex. Using a combination of genetics, imaging, and computational tools to allow simultaneous analysis of neuronal and vascular components, we found that vascular density and branching were decreased in the barrel cortex when sensory input was reduced by either a complete deafferentation, a genetic impairment of neurotransmitter release at thalamocortical synapses, or a selective reduction of sensory-related neural activity by whisker plucking. In contrast, enhancement of neural activity by whisker stimulation led to an increase in vascular density and branching. The finding that neural activity is necessary and sufficient to trigger alterations of vascular networks reveals an important feature of neurovascular interactions. (AU)

FAPESP's process: 11/22639-8 - Unveiling the relationship between structure and dynamics on modular networks
Grantee:Cesar Henrique Comin
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 11/50761-2 - Models and methods of e-Science for life and agricultural sciences
Grantee:Roberto Marcondes Cesar Junior
Support type: Research Projects - Thematic Grants