Choroid plexus NKCC1 mediates cerebrospinal fluid clearance during mouse early postnatal development
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s41467-020-20666-3.pdf
Description
Published version
Size
7.98 MB
Format
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Checksum (MD5)
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Author(s)
Xu, Huixin
Fame, Ryann M.
Sutin, Jason
Naranjo, Christopher
Syau, Della
Cui, Jin
Shipley, Frederick B.
Vernon, Amanda
Gao, Fan
Yong, Zhang
Date Issued
January 2021
Journal
Nature Communications
Publisher
Springer Science and Business Media LLC
Citation
Xu, Huixin et al. "Choroid plexus NKCC1 mediates cerebrospinal fluid clearance during mouse early postnatal development." Nature Communications 12, 1 (January 2021): 447 © 2021 The Author(s).
Version
Final published version
Abstract
Cerebrospinal fluid (CSF) provides vital support for the brain. Abnormal CSF accumulation, such as hydrocephalus, can negatively affect perinatal neurodevelopment. The mechanisms regulating CSF clearance during the postnatal critical period are unclear. Here, we show that CSF K+, accompanied by water, is cleared through the choroid plexus (ChP) during mouse early postnatal development. We report that, at this developmental stage, the ChP showed increased ATP production and increased expression of ATP-dependent K+ transporters, particularly the Na+, K+, Cl−, and water cotransporter NKCC1. Overexpression of NKCC1 in the ChP resulted in increased CSF K+ clearance, increased cerebral compliance, and reduced circulating CSF in the brain without changes in intracranial pressure in mice. Moreover, ChP-specific NKCC1 overexpression in an obstructive hydrocephalus mouse model resulted in reduced ventriculomegaly. Collectively, our results implicate NKCC1 in regulating CSF K+ clearance through the ChP in the critical period during postnatal neurodevelopment in mice.
MIT Department
Picower Institute for Learning and Memory
Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Broad Institute of MIT and Harvard
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Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1038/s41467-020-20666-3
