The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
Astrocytes mediate neurovascular signaling to capillary pericytes but not to arterioles
Open accessAbstract
Active neurons increase their energy supply by dilating nearby arterioles and capillaries. This neurovascular coupling underlies blood oxygen level–dependent functional imaging signals, but its mechanism is controversial. Canonically, neurons release glutamate to activate metabotropic glutamate receptor 5 (mGluR5) on astrocytes, evoking Ca2+ release from internal stores, activating phospholipase A2 and generating vasodilatory arachidonic acid derivatives. However, adult astrocytes lack mGluR5, and knockout of the inositol 1,4,5-trisphosphate receptors that release Ca2+ from stores does not affect neurovascular coupling. We now show that buffering astrocyte Ca2+ inhibits neuronally evoked capillary dilation, that astrocyte [Ca2+]i is raised not by release from stores but by entry through ATP-gated channels, and that Ca2+ generates arachidonic acid via phospholipase D2 and diacylglycerol kinase rather than phospholipase A2. In contrast, dilation of arterioles depends on NMDA receptor activation and Ca2+-dependent NO generation by interneurons. These results reveal that different signaling cascades regulate cerebral blood flow at the capillary and arteriole levels.
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Zhang, Y., Chen, K., Sloan, S. A., Bennett, M. L., Scholze, A. R., O'Keeffe, S., Phatnani, H. P., Guarnieri, P., Caneda, C., Ruderisch, N., et al. (2014) · The Journal of Neuroscience · doi:10.1523/jneurosci.1860-14.2014 · Cited by 4,875
Molecular Physiology of P2X Receptors
North, R. A. (2002) · Physiological Reviews · doi:10.1152/physrev.00015.2002 · Cited by 2,919
Glial and neuronal control of brain blood flow
Attwell, D., Buchan, A. M., Charpak, S., Lauritzen, M., MacVicar, B. A., & Newman, E. A. (2010) · Nature · doi:10.1038/nature09613 · Cited by 2,511
Self-citationCapillary pericytes regulate cerebral blood flow in health and disease
Hall, C. N., Reynell, C., Gesslein, B., Hamilton, N. B., Mishra, A., Sutherland, B. A., O’Farrell, F. M., Buchan, A. M., Lauritzen, M., & Attwell, D. (2014) · Nature · doi:10.1038/nature13165 · Cited by 1,870
Self-citationThe cortical angiome: an interconnected vascular network with noncolumnar patterns of blood flow
Blinder, P., Tsai, P. S., Kaufhold, J. P., Knutsen, P. M., Suhl, H., & Kleinfeld, D. (2013) · Nature Neuroscience · doi:10.1038/nn.3426 · Cited by 573
Winship, I. R., Plaa, N., & Murphy, T. H. (2007) · Journal of Neuroscience · doi:10.1523/jneurosci.4801-06.2007 · Cited by 221
Glial Cell Calcium Signaling Mediates Capillary Regulation of Blood Flow in the Retina
Biesecker, K. R., Srienc, A. I., Shimoda, A. M., Agarwal, A., Bergles, D. E., Kofuji, P., & Newman, E. A. (2016) · The Journal of Neuroscience · doi:10.1523/jneurosci.1782-16.2016 · Cited by 144
Cited by
The Neurovascular Unit Coming of Age: A Journey through Neurovascular Coupling in Health and Disease
Iadecola, C. (2017) · Neuron · doi:10.1016/j.neuron.2017.07.030 · Cited by 2,480
Cerebral blood flow regulation and neurovascular dysfunction in Alzheimer disease
Kisler, K., Nelson, A. R., Montagne, A., & Zlokovic, B. V. (2017) · Nature Reviews Neuroscience · doi:10.1038/nrn.2017.48 · Cited by 1,243
The role of brain vasculature in neurodegenerative disorders
Sweeney, M. D., Kisler, K., Montagne, A., Toga, A. W., & Zlokovic, B. V. (2018) · Nature Neuroscience · doi:10.1038/s41593-018-0234-x · Cited by 998
Pericyte degeneration leads to neurovascular uncoupling and limits oxygen supply to brain
Kisler, K., Nelson, A. R., Rege, S. V., Ramanathan, A., Wang, Y., Ahuja, A., Lazic, D., Tsai, P. S., Zhao, Z., Zhou, Y., et al. (2017) · Nature Neuroscience · doi:10.1038/nn.4489 · Cited by 497
Pericytes and Neurovascular Function in the Healthy and Diseased Brain
Brown, L. S., Foster, C. G., Courtney, J.-M., King, N. E., Howells, D. W., & Sutherland, B. A. (2019) · Frontiers in Cellular Neuroscience · doi:10.3389/fncel.2019.00282 · Cited by 406
Metadata
- Authors
- Mishra, A., Reynolds, J. P., Chen, Y., Gourine, A. V., Rusakov, D. A., & Attwell, D.
- Venue
- Nature Neuroscience
- Published
- 2016-10-24
- Volume
- 19
- Issue
- 12
- Pages
- 1619-1627
- ISSN
- 1097-6256 (ISSN-L)
- 1546-1726
- OpenAlex
- W2536398251
- Cited by
- 543
- References
- 7
- FWCI
- 22.12
- Type
- journal article
- Language
- en
- Open access
- green
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