Autophagicactivityinneuronalcelldeath
摘要: Aspost-mitoticcellswithgreatenergydemands,neuronsdependuponthehomeostaticandwaste-recyclingfunctionsprovidedbyautophagy.Inaddition,autophagyalsopromotessurvivalduringperiodsofharshstressandtargetsaggregate-proneproteinsassociatedwithneurodegenerationfordegradation.Despitethis,autophagyhasalsobeencontroversiallydescribedasamechanismofprogrammedcelldeath.Instancesofautophagiccelldeatharetypicallyassociatedwithelevatednumbersofcytoplasmicautophagosomes,whichhavebeenassumedtoleadtoexcessivedegradationofcellularcomponents.Duetothehighactivityandrelianceonautophagyinneurons,thesecellsmaybeparticularlysusceptibletoautophagicdeath.Inthisreview,wesummarizeandassesscurrentevidenceinsupportofautophagiccelldeathinneurons,aswellashowthedysregulationofautophagycommonlyseeninneurodegenerationcancontributetoneuronloss.Fromhere,wediscusspotentialtreatmentstrategiesrelevanttosuchcell-deathpathways. ...
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