Potentiating glymphatic drainage minimizes post-traumatic cerebral oedema
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Potentiating glymphatic drainage minimizes post-traumatic cerebral oedema. / Hussain, Rashad; Tithof, Jeffrey; Wang, Wei; Cheetham-West, Arokoruba; Song, Wei; Peng, Weiguo; Sigurdsson, Björn; Kim, Daehyun; Sun, Qian; Peng, Sisi; Plá, Virginia; Kelley, Douglas H.; Hirase, Hajime; Castorena-Gonzalez, Jorge A.; Weikop, Pia; Goldman, Steven A.; Davis, Michael J.; Nedergaard, Maiken.
In: Nature, Vol. 623, 2023, p. 992–1000.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Potentiating glymphatic drainage minimizes post-traumatic cerebral oedema
AU - Hussain, Rashad
AU - Tithof, Jeffrey
AU - Wang, Wei
AU - Cheetham-West, Arokoruba
AU - Song, Wei
AU - Peng, Weiguo
AU - Sigurdsson, Björn
AU - Kim, Daehyun
AU - Sun, Qian
AU - Peng, Sisi
AU - Plá, Virginia
AU - Kelley, Douglas H.
AU - Hirase, Hajime
AU - Castorena-Gonzalez, Jorge A.
AU - Weikop, Pia
AU - Goldman, Steven A.
AU - Davis, Michael J.
AU - Nedergaard, Maiken
N1 - Publisher Copyright: © 2023, The Author(s), under exclusive licence to Springer Nature Limited.
PY - 2023
Y1 - 2023
N2 - Cerebral oedema is associated with morbidity and mortality after traumatic brain injury (TBI)1. Noradrenaline levels are increased after TBI2–4, and the amplitude of the increase in noradrenaline predicts both the extent of injury5 and the likelihood of mortality6. Glymphatic impairment is both a feature of and a contributor to brain injury7,8, but its relationship with the injury-associated surge in noradrenaline is unclear. Here we report that acute post-traumatic oedema results from a suppression of glymphatic and lymphatic fluid flow that occurs in response to excessive systemic release of noradrenaline. This post-TBI adrenergic storm was associated with reduced contractility of cervical lymphatic vessels, consistent with diminished return of glymphatic and lymphatic fluid to the systemic circulation. Accordingly, pan-adrenergic receptor inhibition normalized central venous pressure and partly restored glymphatic and cervical lymphatic flow in a mouse model of TBI, and these actions led to substantially reduced brain oedema and improved functional outcomes. Furthermore, post-traumatic inhibition of adrenergic signalling boosted lymphatic export of cellular debris from the traumatic lesion, substantially reducing secondary inflammation and accumulation of phosphorylated tau. These observations suggest that targeting the noradrenergic control of central glymphatic flow may offer a therapeutic approach for treating acute TBI.
AB - Cerebral oedema is associated with morbidity and mortality after traumatic brain injury (TBI)1. Noradrenaline levels are increased after TBI2–4, and the amplitude of the increase in noradrenaline predicts both the extent of injury5 and the likelihood of mortality6. Glymphatic impairment is both a feature of and a contributor to brain injury7,8, but its relationship with the injury-associated surge in noradrenaline is unclear. Here we report that acute post-traumatic oedema results from a suppression of glymphatic and lymphatic fluid flow that occurs in response to excessive systemic release of noradrenaline. This post-TBI adrenergic storm was associated with reduced contractility of cervical lymphatic vessels, consistent with diminished return of glymphatic and lymphatic fluid to the systemic circulation. Accordingly, pan-adrenergic receptor inhibition normalized central venous pressure and partly restored glymphatic and cervical lymphatic flow in a mouse model of TBI, and these actions led to substantially reduced brain oedema and improved functional outcomes. Furthermore, post-traumatic inhibition of adrenergic signalling boosted lymphatic export of cellular debris from the traumatic lesion, substantially reducing secondary inflammation and accumulation of phosphorylated tau. These observations suggest that targeting the noradrenergic control of central glymphatic flow may offer a therapeutic approach for treating acute TBI.
U2 - 10.1038/s41586-023-06737-7
DO - 10.1038/s41586-023-06737-7
M3 - Journal article
C2 - 37968397
AN - SCOPUS:85176596380
VL - 623
SP - 992
EP - 1000
JO - Nature Genetics
JF - Nature Genetics
SN - 1061-4036
ER -
ID: 374129322