NLRP3-dependent lipid droplet formation contributes to posthemorrhagic hydrocephalus by increasing the permeability of the blood–cerebrospinal fluid barrier in the choroid plexus

Brain hemorrhage: Causes of fluid build-up on the brain Inhibiting a key inflammatory protein and thereby protecting the blood-brain barrier following brain hemorrhage may prevent the build-up of fluid on the brain (hydrocephalus). Using rat models and cell cultures, Yujie Chen and Hua Feng at the T...

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Main Authors: Zhaoqi Zhang, Peiwen Guo, Liang Liang, Shiju Jila, Xufang Ru, Qiang Zhang, Jingyu Chen, Zhi Chen, Hua Feng, Yujie Chen
Format: Article
Language:English
Published: Nature Publishing Group 2023-03-01
Series:Experimental and Molecular Medicine
Online Access:https://doi.org/10.1038/s12276-023-00955-9
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author Zhaoqi Zhang
Peiwen Guo
Liang Liang
Shiju Jila
Xufang Ru
Qiang Zhang
Jingyu Chen
Zhi Chen
Hua Feng
Yujie Chen
author_facet Zhaoqi Zhang
Peiwen Guo
Liang Liang
Shiju Jila
Xufang Ru
Qiang Zhang
Jingyu Chen
Zhi Chen
Hua Feng
Yujie Chen
author_sort Zhaoqi Zhang
collection DOAJ
description Brain hemorrhage: Causes of fluid build-up on the brain Inhibiting a key inflammatory protein and thereby protecting the blood-brain barrier following brain hemorrhage may prevent the build-up of fluid on the brain (hydrocephalus). Using rat models and cell cultures, Yujie Chen and Hua Feng at the Third Military Medical University in Chongqing, China, and co-workers examined how posthemorrhagic hydrocephalus occurs. They found that the acute inflammatory response activated immediately after a brain hemorrhage, which is driven by a critical protein complex involved in innate immunity called the NLRP3 inflammasome, triggers the formation of lipid droplets in the choroid plexus, a part of the brain adjacent to the blood-brain barrier. The lipid droplets interact with mitochondria, increasing the release of reactive oxygen species and damaging the blood-brain barrier. This barrier dysfunction triggers hydrocephalus. Blocking NLRP3 activity improved the function of the barrier following hemorrhage.
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spelling doaj.art-80ed5d3826b140fbb1b843d532df5d502023-04-09T11:09:16ZengNature Publishing GroupExperimental and Molecular Medicine2092-64132023-03-0155357458610.1038/s12276-023-00955-9NLRP3-dependent lipid droplet formation contributes to posthemorrhagic hydrocephalus by increasing the permeability of the blood–cerebrospinal fluid barrier in the choroid plexusZhaoqi Zhang0Peiwen Guo1Liang Liang2Shiju Jila3Xufang Ru4Qiang Zhang5Jingyu Chen6Zhi Chen7Hua Feng8Yujie Chen9Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Neurosurgery and State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University)Brain hemorrhage: Causes of fluid build-up on the brain Inhibiting a key inflammatory protein and thereby protecting the blood-brain barrier following brain hemorrhage may prevent the build-up of fluid on the brain (hydrocephalus). Using rat models and cell cultures, Yujie Chen and Hua Feng at the Third Military Medical University in Chongqing, China, and co-workers examined how posthemorrhagic hydrocephalus occurs. They found that the acute inflammatory response activated immediately after a brain hemorrhage, which is driven by a critical protein complex involved in innate immunity called the NLRP3 inflammasome, triggers the formation of lipid droplets in the choroid plexus, a part of the brain adjacent to the blood-brain barrier. The lipid droplets interact with mitochondria, increasing the release of reactive oxygen species and damaging the blood-brain barrier. This barrier dysfunction triggers hydrocephalus. Blocking NLRP3 activity improved the function of the barrier following hemorrhage.https://doi.org/10.1038/s12276-023-00955-9
spellingShingle Zhaoqi Zhang
Peiwen Guo
Liang Liang
Shiju Jila
Xufang Ru
Qiang Zhang
Jingyu Chen
Zhi Chen
Hua Feng
Yujie Chen
NLRP3-dependent lipid droplet formation contributes to posthemorrhagic hydrocephalus by increasing the permeability of the blood–cerebrospinal fluid barrier in the choroid plexus
Experimental and Molecular Medicine
title NLRP3-dependent lipid droplet formation contributes to posthemorrhagic hydrocephalus by increasing the permeability of the blood–cerebrospinal fluid barrier in the choroid plexus
title_full NLRP3-dependent lipid droplet formation contributes to posthemorrhagic hydrocephalus by increasing the permeability of the blood–cerebrospinal fluid barrier in the choroid plexus
title_fullStr NLRP3-dependent lipid droplet formation contributes to posthemorrhagic hydrocephalus by increasing the permeability of the blood–cerebrospinal fluid barrier in the choroid plexus
title_full_unstemmed NLRP3-dependent lipid droplet formation contributes to posthemorrhagic hydrocephalus by increasing the permeability of the blood–cerebrospinal fluid barrier in the choroid plexus
title_short NLRP3-dependent lipid droplet formation contributes to posthemorrhagic hydrocephalus by increasing the permeability of the blood–cerebrospinal fluid barrier in the choroid plexus
title_sort nlrp3 dependent lipid droplet formation contributes to posthemorrhagic hydrocephalus by increasing the permeability of the blood cerebrospinal fluid barrier in the choroid plexus
url https://doi.org/10.1038/s12276-023-00955-9
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