Alkaline Ceramidase 3 Deficiency Results in Purkinje Cell Degeneration and Cerebellar Ataxia Due to Dyshomeostasis of Sphingolipids in the Brain

Dyshomeostasis of both ceramides and sphingosine-1-phosphate (S1P) in the brain has been implicated in aging-associated neurodegenerative disorders in humans. However, mechanisms that maintain the homeostasis of these bioactive sphingolipids in the brain remain unclear. Mouse alkaline ceramidase 3 (...

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Veröffentlicht in:PLoS genetics 2015-10, Vol.11 (10), p.e1005591-e1005591
Hauptverfasser: Wang, Kai, Xu, Ruijuan, Schrandt, Jennifer, Shah, Prithvi, Gong, Yong Z, Preston, Chet, Wang, Louis, Yi, Jae Kyo, Lin, Chih-Li, Sun, Wei, Spyropoulos, Demetri D, Rhee, Soyoung, Li, Mingsong, Zhou, Jie, Ge, Shaoyu, Zhang, Guofeng, Snider, Ashley J, Hannun, Yusuf A, Obeid, Lina M, Mao, Cungui
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container_issue 10
container_start_page e1005591
container_title PLoS genetics
container_volume 11
creator Wang, Kai
Xu, Ruijuan
Schrandt, Jennifer
Shah, Prithvi
Gong, Yong Z
Preston, Chet
Wang, Louis
Yi, Jae Kyo
Lin, Chih-Li
Sun, Wei
Spyropoulos, Demetri D
Rhee, Soyoung
Li, Mingsong
Zhou, Jie
Ge, Shaoyu
Zhang, Guofeng
Snider, Ashley J
Hannun, Yusuf A
Obeid, Lina M
Mao, Cungui
description Dyshomeostasis of both ceramides and sphingosine-1-phosphate (S1P) in the brain has been implicated in aging-associated neurodegenerative disorders in humans. However, mechanisms that maintain the homeostasis of these bioactive sphingolipids in the brain remain unclear. Mouse alkaline ceramidase 3 (Acer3), which preferentially catalyzes the hydrolysis of C18:1-ceramide, a major unsaturated long-chain ceramide species in the brain, is upregulated with age in the mouse brain. Acer3 knockout causes an age-dependent accumulation of various ceramides and C18:1-monohexosylceramide and abolishes the age-related increase in the levels of sphingosine and S1P in the brain; thereby resulting in Purkinje cell degeneration in the cerebellum and deficits in motor coordination and balance. Our results indicate that Acer3 plays critically protective roles in controlling the homeostasis of various sphingolipids, including ceramides, sphingosine, S1P, and certain complex sphingolipids in the brain and protects Purkinje cells from premature degeneration.
doi_str_mv 10.1371/journal.pgen.1005591
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Our results indicate that Acer3 plays critically protective roles in controlling the homeostasis of various sphingolipids, including ceramides, sphingosine, S1P, and certain complex sphingolipids in the brain and protects Purkinje cells from premature degeneration.</description><subject>Age</subject><subject>Aging</subject><subject>Aging - genetics</subject><subject>Aging - metabolism</subject><subject>Aging - pathology</subject><subject>Alkaline Ceramidase - genetics</subject><subject>Animals</subject><subject>Ataxia</subject><subject>Behavior</subject><subject>Brain - metabolism</subject><subject>Brain - pathology</subject><subject>Ceramides</subject><subject>Ceramides - genetics</subject><subject>Ceramides - metabolism</subject><subject>Cerebellar Ataxia - genetics</subject><subject>Cerebellar Ataxia - metabolism</subject><subject>Cerebellar Ataxia - pathology</subject><subject>Homeostasis</subject><subject>Homeostasis - genetics</subject><subject>Humans</subject><subject>Liver</subject><subject>Lungs</subject><subject>Lysophospholipids - genetics</subject><subject>Lysophospholipids - metabolism</subject><subject>Mammals</subject><subject>Metabolites</subject><subject>Mice</subject><subject>Mice, Knockout</subject><subject>Motor ability</subject><subject>Phosphates</subject><subject>Physiological aspects</subject><subject>Purkinje Cells - metabolism</subject><subject>Purkinje Cells - pathology</subject><subject>Sphingolipids - genetics</subject><subject>Sphingolipids - metabolism</subject><subject>Sphingosine</subject><subject>Sphingosine - analogs &amp; 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Xu, Ruijuan ; Schrandt, Jennifer ; Shah, Prithvi ; Gong, Yong Z ; Preston, Chet ; Wang, Louis ; Yi, Jae Kyo ; Lin, Chih-Li ; Sun, Wei ; Spyropoulos, Demetri D ; Rhee, Soyoung ; Li, Mingsong ; Zhou, Jie ; Ge, Shaoyu ; Zhang, Guofeng ; Snider, Ashley J ; Hannun, Yusuf A ; Obeid, Lina M ; Mao, Cungui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c698t-5789af5413504a648ee6f118be85a2539f3d9e0634bfb65c700c8b59c26ebe0c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Age</topic><topic>Aging</topic><topic>Aging - genetics</topic><topic>Aging - metabolism</topic><topic>Aging - pathology</topic><topic>Alkaline Ceramidase - genetics</topic><topic>Animals</topic><topic>Ataxia</topic><topic>Behavior</topic><topic>Brain - metabolism</topic><topic>Brain - pathology</topic><topic>Ceramides</topic><topic>Ceramides - genetics</topic><topic>Ceramides - metabolism</topic><topic>Cerebellar Ataxia - genetics</topic><topic>Cerebellar Ataxia - metabolism</topic><topic>Cerebellar Ataxia - pathology</topic><topic>Homeostasis</topic><topic>Homeostasis - genetics</topic><topic>Humans</topic><topic>Liver</topic><topic>Lungs</topic><topic>Lysophospholipids - genetics</topic><topic>Lysophospholipids - metabolism</topic><topic>Mammals</topic><topic>Metabolites</topic><topic>Mice</topic><topic>Mice, Knockout</topic><topic>Motor ability</topic><topic>Phosphates</topic><topic>Physiological aspects</topic><topic>Purkinje Cells - metabolism</topic><topic>Purkinje Cells - pathology</topic><topic>Sphingolipids - genetics</topic><topic>Sphingolipids - metabolism</topic><topic>Sphingosine</topic><topic>Sphingosine - analogs &amp; 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However, mechanisms that maintain the homeostasis of these bioactive sphingolipids in the brain remain unclear. Mouse alkaline ceramidase 3 (Acer3), which preferentially catalyzes the hydrolysis of C18:1-ceramide, a major unsaturated long-chain ceramide species in the brain, is upregulated with age in the mouse brain. Acer3 knockout causes an age-dependent accumulation of various ceramides and C18:1-monohexosylceramide and abolishes the age-related increase in the levels of sphingosine and S1P in the brain; thereby resulting in Purkinje cell degeneration in the cerebellum and deficits in motor coordination and balance. Our results indicate that Acer3 plays critically protective roles in controlling the homeostasis of various sphingolipids, including ceramides, sphingosine, S1P, and certain complex sphingolipids in the brain and protects Purkinje cells from premature degeneration.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>26474409</pmid><doi>10.1371/journal.pgen.1005591</doi><oa>free_for_read</oa></addata></record>
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subjects Age
Aging
Aging - genetics
Aging - metabolism
Aging - pathology
Alkaline Ceramidase - genetics
Animals
Ataxia
Behavior
Brain - metabolism
Brain - pathology
Ceramides
Ceramides - genetics
Ceramides - metabolism
Cerebellar Ataxia - genetics
Cerebellar Ataxia - metabolism
Cerebellar Ataxia - pathology
Homeostasis
Homeostasis - genetics
Humans
Liver
Lungs
Lysophospholipids - genetics
Lysophospholipids - metabolism
Mammals
Metabolites
Mice
Mice, Knockout
Motor ability
Phosphates
Physiological aspects
Purkinje Cells - metabolism
Purkinje Cells - pathology
Sphingolipids - genetics
Sphingolipids - metabolism
Sphingosine
Sphingosine - analogs & derivatives
Sphingosine - genetics
Sphingosine - metabolism
title Alkaline Ceramidase 3 Deficiency Results in Purkinje Cell Degeneration and Cerebellar Ataxia Due to Dyshomeostasis of Sphingolipids in the Brain
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