Abstract
Autophagy is an essential process for maintaining cellular homeostasis, a critical process in all cell types. Because neurons are post-mitotic cells, maintaining cellular and functional homeostasis is more important in neurons than in other types of cells. Synapses are fundamental units needed for neural communication, and synapses with consistent protein quality are essential for neural functionality. Dysregulation of autophagy in neurons has been shown to be related to neurodegenerative diseases, including Alzheimer’s disease and Parkinson’s disease. This review describes the role of autophagy in the maintenance of synaptic functionality and the association between synaptic autophagy and neurodegenerative diseases.
Similar content being viewed by others
References
Alvarez-Erviti L, Rodriguez-Oroz MC, Cooper JM, Caballero C, Ferrer I, Obeso JA, Schapira AH (2010) Chaperone-mediated autophagy markers in Parkinson disease brains. Arch Neurol 67:1464–1472
Ashrafi G, Schlehe JS, Lavoie MJ, Schwarz TL (2014) Mitophagy of damaged mitochondria occurs locally in distal neuronal axons and requires PINK1 and Parkin. J Cell Biol 206:655–670
Binotti B, Pavlos NJ, Riedel D, Wenzel D, Vorbruggen G, Schalk AM, Kuhnel K, Boyken J, Erck C, Martens H, Chua JJ, Jahn R (2015) The GTPase Rab26 links synaptic vesicles to the autophagy pathway. Elife 4:e05597
Bravo-San Pedro JM, Gomez-Sanchez R, Niso-Santano M, Pizarro-Estrella E, Aiastui-Pujana A, Gorostidi A, Climent V, Lopez De Maturana R, Sanchez-Pernaute R, Lopez De Munain A, Fuentes JM, Gonzalez-Polo RA (2012) The MAPK1/3 pathway is essential for the deregulation of autophagy observed in G2019S LRRK2 mutant fibroblasts. Autophagy 8:1537–1539
Burke RE, O’Malley K (2013) Axon degeneration in Parkinson’s disease. Exp Neurol 246:72–83
Campbell P, Morris H, Schapira A (2018) Chaperone-mediated autophagy as a therapeutic target for Parkinson disease. Expert Opin Ther Targets 22:823–832
Catanese A, Garrido D, Walther P, Roselli F, Boeckers TM (2018) Nutrient limitation affects presynaptic structures through dissociable Bassoon autophagic degradation and impaired vesicle release. J Cereb Blood Flow Metab 38:1924–1939
Chen D, Gao F, Li B, Wang H, Xu Y, Zhu C, Wang G (2010) Parkin mono-ubiquitinates Bcl-2 and regulates autophagy. J Biol Chem 285:38214–38223
Cheng HC, Ulane CM, Burke RE (2010) Clinical progression in Parkinson disease and the neurobiology of axons. Ann Neurol 67:715–725
Cremona O, Di Paolo G, Wenk MR, Luthi A, Kim WT, Takei K, Daniell L, Nemoto Y, Shears SB, Flavell RA, Mccormick DA, De Camilli P (1999) Essential role of phosphoinositide metabolism in synaptic vesicle recycling. Cell 99:179–188
Cuervo AM, Stefanis L, Fredenburg R, Lansbury PT, Sulzer D (2004) Impaired degradation of mutant alpha-synuclein by chaperone-mediated autophagy. Science 305:1292–1295
Dai S, Wang B, Li W, Wang L, Song X, Guo C, Li Y, Liu F, Zhu F, Wang Q, Wang X, Shi Y, Wang J, Zhao W, Zhang L (2016) Systemic application of 3-methyladenine markedly inhibited atherosclerotic lesion in ApoE(-/-) mice by modulating autophagy, foam cell formation and immune-negative molecules. Cell Death Dis 7:e2498
Dolan PJ, Johnson GV (2010) A caspase cleaved form of tau is preferentially degraded through the autophagy pathway. J Biol Chem 285:21978–21987
Ebrahimi-Fakhari D, Saffari A, Wahlster L, Di Nardo A, Turner D, Lewis TL Jr, Conrad C, Rothberg JM, Lipton JO, Kolker S, Hoffmann GF, Han MJ, Polleux F, Sahin M (2016) Impaired mitochondrial dynamics and mitophagy in neuronal models of tuberous sclerosis complex. Cell Rep 17:1053–1070
Engelender S (2008) Ubiquitination of alpha-synuclein and autophagy in Parkinson’s disease. Autophagy 4:372–374
Feng Y, He D, Yao Z, Klionsky DJ (2014) The machinery of macroautophagy. Cell Res 24:24–41
Friedman LG, Lachenmayer ML, Wang J, He L, Poulose SM, Komatsu M, Holstein GR, Yue Z (2012) Disrupted autophagy leads to dopaminergic axon and dendrite degeneration and promotes presynaptic accumulation of alpha-synuclein and LRRK2 in the brain. J Neurosci 32:7585–7593
George AA, Hayden S, Holzhausen LC, Ma EY, Suzuki SC, Brockerhoff SE (2014) Synaptojanin 1 is required for endolysosomal trafficking of synaptic proteins in cone photoreceptor inner segments. PLoS ONE 9:e84394
George AA, Hayden S, Stanton GR, Brockerhoff SE (2016) Arf6 and the 5′ phosphatase of synaptojanin 1 regulate autophagy in cone photoreceptors. Inside Cell 1:117–133
Glatigny M, Moriceau S, Rivagorda M, Ramos-Brossier M, Nascimbeni AC, Lante F, Shanley MR, Boudarene N, Rousseaud A, Friedman AK, Settembre C, Kuperwasser N, Friedlander G, Buisson A, Morel E, Codogno P, Oury F (2019) Autophagy is required for memory formation and reverses age-related memory decline. Curr Biol 29:435–448
Gomez-Suaga P, Churchill GC, Patel S, Hilfiker S (2012a) A link between LRRK2, autophagy and NAADP-mediated endolysosomal calcium signalling. Biochem Soc Trans 40:1140–1146
Gomez-Suaga P, Fdez E, Blanca Ramirez M, Hilfiker S (2012b) A link between autophagy and the pathophysiology of LRRK2 in Parkinson’s disease. Parkinsons Dis 2012:324521
Haberman A, Williamson WR, Epstein D, Wang D, Rina S, Meinertzhagen IA, Hiesinger PR (2012) The synaptic vesicle SNARE neuronal synaptobrevin promotes endolysosomal degradation and prevents neurodegeneration. J Cell Biol 196:261–276
Hernandez D, Torres CA, Setlik W, Cebrian C, Mosharov EV, Tang G, Cheng HC, Kholodilov N, Yarygina O, Burke RE, Gershon M, Sulzer D (2012) Regulation of presynaptic neurotransmission by macroautophagy. Neuron 74:277–284
Jo C, Gundemir S, Pritchard S, Jin YN, Rahman I, Johnson GV (2014) Nrf2 reduces levels of phosphorylated tau protein by inducing autophagy adaptor protein NDP52. Nat Commun 5:3496
Joshi G, Gan KA, Johnson DA, Johnson JA (2015) Increased Alzheimer’s disease-like pathology in the APP/PS1ΔE9 mouse model lacking Nrf2 through modulation of autophagy. Neurobiol Aging 36:664–679
Kaushik S, Cuervo AM (2012) Chaperone-mediated autophagy: a unique way to enter the lysosome world. Trends Cell Biol 22:407–417
Kim J, Basak JM, Holtzman DM (2009) The role of apolipoprotein E in Alzheimer’s disease. Neuron 63:287–303
Koh TW, Verstreken P, Bellen HJ (2004) Dap160/intersectin acts as a stabilizing scaffold required for synaptic development and vesicle endocytosis. Neuron 43:193–205
Li Q, Liu Y, Sun M (2017) Autophagy and Alzheimer’s disease. Cell Mol Neurobiol 37:377–388
Li W, Li K, Gao J, Yang Z (2018) Autophagy is required for human umbilical cord mesenchymal stem cells to improve spatial working memory in APP/PS1 transgenic mouse model. Stem Cell Res Ther 9:9
Liang Y (2019) Emerging concepts and functions of autophagy as a regulator of synaptic components and plasticity. Cells 8:34
Liang Y, Sigrist S (2018) Autophagy and proteostasis in the control of synapse aging and disease. Curr Opin Neurobiol 48:113–121
Lieberman OJ, Mcguirt AF, Tang G, Sulzer D (2018) Roles for neuronal and glial autophagy in synaptic pruning during development. Neurobiol Dis 122:49–63
Lonskaya I, Hebron ML, Algarzae NK, Desforges N, Moussa CE (2013) Decreased parkin solubility is associated with impairment of autophagy in the nigrostriatum of sporadic Parkinson’s disease. Neuroscience 232:90–105
Lüningschrör P, Binotti B, Dombert B, Heimann P, Perez-Lara A, Slotta C, Thau-Habermann N, Von Collenberg CR, Karl F, Damme M, Horowitz A, Maystadt I, Füchtbauer A, Füchtbauer EM, Jablonka S, Blum R, Üçeyler N, Petri S, Kaltschmidt B, Jahn R, Kaltschmidt C, Sendtner M (2017) Plekhg5-regulated autophagy of synaptic vesicles reveals a pathogenic mechanism in motoneuron disease. Nat Commun 8:678
Maday S, Holzbaur ELF (2016) Compartment-specific regulation of autophagy in primary neurons. J Neurosci 36:5933–5945
Maday S, Wallace KE, Holzbaur ELF (2012) Autophagosomes initiate distally and mature during transport toward the cell soma in primary neurons. J Cell Biol 196:407–417
Manczak M, Kandimalla R, Yin X, Reddy PH (2018) Hippocampal mutant APP and amyloid beta-induced cognitive decline, dendritic spine loss, defective autophagy, mitophagy and mitochondrial abnormalities in a mouse model of Alzheimer’s disease. Hum Mol Genet 27:1332–1342
Mani M, Lee SY, Lucast L, Cremona O, Di Paolo G, De Camilli P, Ryan TA (2007) The dual phosphatase activity of synaptojanin1 is required for both efficient synaptic vesicle endocytosis and reavailability at nerve terminals. Neuron 56:1004–1018
Marie B, Sweeney ST, Poskanzer KE, Roos J, Kelly RB, Davis GW (2004) Dap160/intersectin scaffolds the periactive zone to achieve high-fidelity endocytosis and normal synaptic growth. Neuron 43:207–219
Martinez-Vicente M, Talloczy Z, Kaushik S, Massey AC, Mazzulli J, Mosharov EV, Hodara R, Fredenburg R, Wu DC, Follenzi A, Dauer W, Przedborski S, Ischiropoulos H, Lansbury PT, Sulzer D, Cuervo AM (2008) Dopamine-modified alpha-synuclein blocks chaperone-mediated autophagy. J Clin Invest 118:777–788
Metaxakis A, Ploumi C, Tavernarakis N (2018) Autophagy in age-associated neurodegeneration. Cells 7:37
Milosevic I, Giovedi S, Lou X, Raimondi A, Collesi C, Shen H, Paradise S, O’toole E, Ferguson S, Cremona O, De Camilli P (2011) Recruitment of endophilin to clathrin-coated pit necks is required for efficient vesicle uncoating after fission. Neuron 72:587–601
Minakaki G, Menges S, Kittel A, Emmanouilidou E, Schaeffner I, Barkovits K, Bergmann A, Rockenstein E, Adame A, Marxreiter F, Mollenhauer B, Galasko D, Buzas EI, Schlotzer-Schrehardt U, Marcus K, Xiang W, Lie DC, Vekrellis K, Masliah E, Winkler J, Klucken J (2018) Autophagy inhibition promotes SNCA/alpha-synuclein release and transfer via extracellular vesicles with a hybrid autophagosome-exosome-like phenotype. Autophagy 14:98–119
Mizushima N, Komatsu M (2011) Autophagy: renovation of cells and tissues. Cell 147:728–741
Moreau K, Fleming A, Imarisio S, Lopez Ramirez A, Mercer JL, Jimenez-Sanchez M, Bento CF, Puri C, Zavodszky E, Siddiqi F, Lavau CP, Betton M, O’kane CJ, Wechsler DS, Rubinsztein DC (2014) PICALM modulates autophagy activity and tau accumulation. Nat Commun 5:4998
Murdoch JD, Rostosky CM, Gowrisankaran S, Arora AS, Soukup SF, Vidal R, Capece V, Freytag S, Fischer A, Verstreken P, Bonn S, Raimundo N, Milosevic I (2016) Endophilin-A deficiency induces the Foxo3a-Fbxo32 network in the brain and causes dysregulation of autophagy and the ubiquitin-proteasome system. Cell Rep 17:1071–1086
Nah J, Pyo JO, Jung S, Yoo SM, Kam TI, Chang J, Han J, AaS Soo, Onodera T, Jung YK (2013) BECN1/beclin 1 is recruited into lipid rafts by prion to activate autophagy in response to amyloid beta 42. Autophagy 9:2009–2021
Narendra D, Tanaka A, Suen DF, Youle RJ (2008) Parkin is recruited selectively to impaired mitochondria and promotes their autophagy. J Cell Biol 183:795–803
Nash Y, Schmukler E, Trudler D, Pinkas-Kramarski R, Frenkel D (2017) DJ-1 deficiency impairs autophagy and reduces alpha-synuclein phagocytosis by microglia. J Neurochem 143:584–594
Nikoletopoulou V, Tavernarakis N (2018) Regulation and roles of autophagy at synapses. Trends Cell Biol 28:646–661
Okerlund ND, Schneider K, Leal-Ortiz S, Montenegro-Venegas C, Kim SA, Garner LC, Waites CL, Gundelfinger ED, Reimer RJ, Garner CC (2017) Bassoon controls presynaptic autophagy through Atg5. Neuron 93(897–913):e7
Orenstein SJ, Kuo SH, Tasset I, Arias E, Koga H, Fernandez-Carasa I, Cortes E, Honig LS, Dauer W, Consiglio A, Raya A, Sulzer D, Cuervo AM (2013) Interplay of LRRK2 with chaperone-mediated autophagy. Nat Neurosci 16:394–406
Peng J, Yang Q, Li AF, Li RQ, Wang Z, Liu LS, Ren Z, Zheng XL, Tang XQ, Li GH, Tang ZH, Jiang ZS, Wei DH (2016) Tet methylcytosine dioxygenase 2 inhibits atherosclerosis via upregulation of autophagy in ApoE-/- mice. Oncotarget 7:76423–76436
Pickford F, Masliah E, Britschgi M, Lucin K, Narasimhan R, Jaeger PA, Small S, Spencer B, Rockenstein E, Levine B, Wyss-Coray T (2008) The autophagy-related protein beclin 1 shows reduced expression in early Alzheimer disease and regulates amyloid beta accumulation in mice. J Clin Invest 118:2190–2199
Reddy PH, Yin X, Manczak M, Kumar S, Pradeepkiran JA, Vijayan M, Reddy AP (2018) Mutant APP and amyloid beta-induced defective autophagy, mitophagy, mitochondrial structural and functional changes and synaptic damage in hippocampal neurons from Alzheimer’s disease. Hum Mol Genet 27:2502–2516
Ryter SW, Cloonan SM, Choi AM (2013) Autophagy: a critical regulator of cellular metabolism and homeostasis. Mol Cells 36:7–16
Saez-Atienzar S, Bonet-Ponce L, Blesa JR, Romero FJ, Murphy MP, Jordan J, Galindo MF (2014) The LRRK2 inhibitor GSK2578215A induces protective autophagy in SH-SY5Y cells: involvement of Drp-1-mediated mitochondrial fission and mitochondrial-derived ROS signaling. Cell Death Dis 5:e1368
Saha S, Liu-Yesucevitz L, Wolozin B (2014) Regulation of autophagy by LRRK2 in Caenorhabditis elegans. Neurodegener Dis 13:110–113
Schmidt A, Wolde M, Thiele C, Fest W, Kratzin H, Podtelejnikov AV, Witke W, Huttner WB, Soling HD (1999) Endophilin I mediates synaptic vesicle formation by transfer of arachidonate to lysophosphatidic acid. Nature 401:133–141
Schuske KR, Richmond JE, Matthies DS, Davis WS, Runz S, Rube DA, Van Der Bliek AM, Jorgensen EM (2003) Endophilin is required for synaptic vesicle endocytosis by localizing synaptojanin. Neuron 40:749–762
Selkoe DJ (2002) Alzheimer’s disease is a synaptic failure. Science 298:789–791
Shen W, Ganetzky B (2009) Autophagy promotes synapse development in Drosophila. J Cell Biol 187:71–79
Shen DN, Zhang LH, Wei EQ, Yang Y (2015) Autophagy in synaptic development, function, and pathology. Neurosci Bull 31:416–426
Silva JM, Rodrigues S, Sampaio-Marques B, Gomes P, Neves-Carvalho A, Dioli C, Soares-Cunha C, Mazuik BF, Takashima A, Ludovico P, Wolozin B, Sousa N, Sotiropoulos I (2018) Dysregulation of autophagy and stress granule-related proteins in stress-driven Tau pathology. Cell Death Differ. https://doi.org/10.1038/s41418-018-0217-1
Son JH, Shim JH, Kim KH, Ha JY, Han JY (2012) Neuronal autophagy and neurodegenerative diseases. Exp Mol Med 44:89–98
Soukup SF, Verstreken P (2017) EndoA/Endophilin-A creates docking stations for autophagic proteins at synapses. Autophagy 13:971–972
Soukup SF, Vanhauwaert R, Verstreken P (2018) Parkinson’s disease: convergence on synaptic homeostasis. EMBO J 37:e98960
Stavoe AK, Hill SE, Hall DH, Colon-Ramos DA (2016) KIF1A/UNC-104 transports ATG-9 to regulate neurodevelopment and autophagy at synapses. Dev Cell 38:171–185
Takagawa T, Kitani A, Fuss I, Levine B, Brant SR, Peter I, Tajima M, Nakamura S, Strober W (2018) An increase in LRRK2 suppresses autophagy and enhances Dectin-1-induced immunity in a mouse model of colitis. Sci Transl Med. https://doi.org/10.1126/scitranslmed.aan8162
Takahashi Y, Coppola D, Matsushita N, Cualing HD, Sun M, Sato Y, Liang C, Jung JU, Cheng JQ, Mule JJ, Pledger WJ, Wang HG (2007) Bif-1 interacts with beclin 1 through UVRAG and regulates autophagy and tumorigenesis. Nat Cell Biol 9:1142–1151
Takahashi Y, Meyerkord CL, Wang HG (2008) BARgaining membranes for autophagosome formation: regulation of autophagy and tumorigenesis by Bif-1/endophilin B1. Autophagy 4:121–124
Takahashi Y, Meyerkord CL, Wang HG (2009) Bif-1/endophilin B1: a candidate for crescent driving force in autophagy. Cell Death Differ 16:947–955
Takahashi Y, Hori T, Cooper TK, Liao J, Desai N, Serfass JM, Young MM, Park S, Izu Y, Wang HG (2013) Bif-1 haploinsufficiency promotes chromosomal instability and accelerates Myc-driven lymphomagenesis via suppression of mitophagy. Blood 121:1622–1632
Tian Y, Chang JC, Fan EY, Flajolet M, Greengard P (2013) Adaptor complex AP2/PICALM, through interaction with LC3, targets Alzheimer’s APP-CTF for terminal degradation via autophagy. Proc Natl Acad Sci USA 110:17071–17076
Torres CA, Sulzer D (2012) Macroautophagy can press a brake on presynaptic neurotransmission. Autophagy 8:1540–1541
Uytterhoeven V, Lauwers E, Maes I, Miskiewicz K, Melo MN, Swerts J, Kuenen S, Wittocx R, Corthout N, Marrink SJ, Munck S, Verstreken P (2015) Hsc70-4 deforms membranes to promote synaptic protein turnover by endosomal microautophagy. Neuron 88:735–748
Vanhauwaert R, Kuenen S, Masius R, Bademosi A, Manetsberger J, Schoovaerts N, Bounti L, Gontcharenko S, Swerts J, Vilain S, Picillo M, Barone P, Munshi ST, De Vrij FM, Kushner SA, Gounko NV, Mandemakers W, Bonifati V, Meunier FA, Soukup SF, Verstreken P (2017) The SAC1 domain in synaptojanin is required for autophagosome maturation at presynaptic terminals. EMBO J 36:1392–1411
Vijayan V, Verstreken P (2017) Autophagy in the presynaptic compartment in health and disease. J Cell Biol 216:1895–1906
Wang Y, Nartiss Y, Steipe B, Mcquibban GA, Kim PK (2012) ROS-induced mitochondrial depolarization initiates PARK2/PARKIN-dependent mitochondrial degradation by autophagy. Autophagy 8:1462–1476
Wang DB, Uo T, Kinoshita C, Sopher BL, Lee RJ, Murphy SP, Kinoshita Y, Garden GA, Wang HG, Morrison RS (2014) Bax interacting factor-1 promotes survival and mitochondrial elongation in neurons. J Neurosci 34:2674–2683
Webb JL, Ravikumar B, Atkins J, Skepper JN, Rubinsztein DC (2003) Alpha-Synuclein is degraded by both autophagy and the proteasome. J Biol Chem 278:25009–25013
Winckler B, Faundez V, Maday S, Cai Q, Guimas Almeida C, Zhang H (2018) The endolysosomal system and proteostasis: from development to degeneration. J Neurosci 38:9364–9374
Wong AS, Lee RH, Cheung AY, Yeung PK, Chung SK, Cheung ZH, Ip NY (2011) Cdk5-mediated phosphorylation of endophilin B1 is required for induced autophagy in models of Parkinson’s disease. Nat Cell Biol 13:568–579
Xu CY, Kang WY, Chen YM, Jiang TF, Zhang J, Zhang LN, Ding JQ, Liu J, Chen SD (2017) DJ-1 inhibits alpha-synuclein aggregation by regulating chaperone-mediated autophagy. Front Aging Neurosci 9:308
Xue Z, Zhang S, Huang L, He Y, Fang R, Fang Y (2013) Increased expression of beclin-1-dependent autophagy protects against beta-amyloid-induced cell injury in PC12 cells [corrected]. J Mol Neurosci 51:180–186
Yang Q, Mao Z (2010) Parkinson disease: a role for autophagy? Neuroscientist 16:335–341
Zare-Shahabadi A, Masliah E, Johnson GV, Rezaei N (2015) Autophagy in Alzheimer’s disease. Rev Neurosci 26:385–395
Acknowledgements
We thank Soondo Hwang, Soulmee Koh, and Do Ru Kwon from the Synapse Communication Laboratory for their valuable comments. This work was supported by the National Research Foundation of Korea (2017M3C7A1048268, 2017R1A2B4007019, 2018R1A6A1A03025124).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that there is no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Lee, W., Kim, S.H. Autophagy at synapses in neurodegenerative diseases. Arch. Pharm. Res. 42, 407–415 (2019). https://doi.org/10.1007/s12272-019-01148-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12272-019-01148-7