2022
DOI: 10.1016/j.celrep.2022.111872
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Brain capillary pericytes are metabolic sentinels that control blood flow through a KATP channel-dependent energy switch

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Cited by 35 publications
(36 citation statements)
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“…2c–g and Tables S1 and S2 ). To further test the effect of membrane voltage on mid-capillary pericyte Ca 2+ , we pharmacologically altered K ATP channel activity, whose modulation has been shown to have large effects on pericyte membrane potential 37 39 . Consistent with our above results showing that mid-capillary Ca 2+ transients were independent of VGCCs, application of pinacidil (10 µM), a K ATP channel opener which hyperpolarizes pericytes, had no effect on transient frequency in processes or the soma (Fig.…”
Section: Resultsmentioning
confidence: 99%
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“…2c–g and Tables S1 and S2 ). To further test the effect of membrane voltage on mid-capillary pericyte Ca 2+ , we pharmacologically altered K ATP channel activity, whose modulation has been shown to have large effects on pericyte membrane potential 37 39 . Consistent with our above results showing that mid-capillary Ca 2+ transients were independent of VGCCs, application of pinacidil (10 µM), a K ATP channel opener which hyperpolarizes pericytes, had no effect on transient frequency in processes or the soma (Fig.…”
Section: Resultsmentioning
confidence: 99%
“…Although our data suggests Ca 2+ influx in mid-capillary pericytes occurs primarily via non-voltage-gated channels, this does not exclude a role for pericyte hyperpolarization in functional hyperemia. Several reports on pericyte membrane potential have been made in various preparations from different regions of the CNS, reporting mean resting membrane potentials of between −35 mV and −50 mV 10 , 28 , 37 39 , 50 . In pressurized intact retina preparations, pericytes across the vascular arbor are found more depolarized than smooth muscle cells at low pressure (−43 mV vs. −64 mV) 50 , suggesting pericytes have lower K + permeability at rest.…”
Section: Discussionmentioning
confidence: 99%
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“…In rodent (particularly murine) studies, genetically engineered animals can express reporter proteins to signal the location and physiological reaction parameters of pericytes for experimental purposes. 7,[17][18][19][20][21] However, these methods are not applicable to human brain research. There are likely differences between human and rodent species in physiology-the human brain is very different from that of mice, as the species diverged evolutionarily $75-95 million years ago.…”
Section: Introductionmentioning
confidence: 99%
“…astrocytes and endothelial cells). [1][2][3][4][5][6][7][8][9] Pericyte dysfunction is now recognised as a potential contributor to the progression of vascular diseases and neurodegenerative diseases, particularly in persons of advanced age. 5,[10][11][12][13][14][15][16] Despite the burgeoning scientific literature on pericyte biology, much remains to be learned about this fascinating cell type.…”
Section: Introductionmentioning
confidence: 99%