Abstract
The formation and maintenance of synapses require long-distance delivery of newly synthesized synaptic proteins from the soma to distal synapses, raising the fundamental question of whether impaired transport is associated with neurodevelopmental disorders such as autism. We previously revealed that syntabulin acts as a motor adapter linking kinesin-1 motor and presynaptic cargos. Here, we report that defects in syntabulin-mediated transport and thus reduced formation and maturation of synapses are one of core synaptic mechanisms underlying autism-like synaptic dysfunction and social behavioral abnormalities. Syntabulin expression in the mouse brain peaks during the first 2 weeks of postnatal development and progressively declines during brain maturation. Neurons from conditional syntabulin−/− mice (stb cKO) display impaired transport of presynaptic cargos, reduced synapse density and active zones, and altered synaptic transmission and long-term plasticity. Intriguingly, stb cKO mice exhibit core autism-like traits, including defective social recognition and communication, increased stereotypic behavior, and impaired spatial learning and memory. These phenotypes establish a new mechanistic link between reduced transport of synaptic cargos and impaired maintenance of synaptic transmission and plasticity, contributing to autism-associated behavioral abnormalities. This notion is further confirmed by the human missense variant STB-R178Q, which is found in an autism patient and loses its adapter capacity for binding kinesin-1 motors. Expressing STB-R178Q fails to rescue reduced synapse formation and impaired synaptic transmission and plasticity in stb cKO neurons. Altogether, our study suggests that defects in syntabulin-mediated transport mechanisms underlie the synaptic dysfunction and behavioral abnormalities that bear similarities to autism.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
Data availability
All data is available in the manuscript or the supplementary materials.
References
Goda Y, Davis GW. Mechanisms of synapse assembly and disassembly. Neuron. 2003;40:243–64.
Chia PH, Li PP, Shen K. Cellular and molecular mechanisms underlying presynapse formation. J Cell Biol. 2013;203:11–22.
Ziv NE, Garner CC. Cellular and molecular mechanisms of presynaptic assembly. Nat Rev Neurosci. 2004;5:385–99.
Nakata T, Terada S, Hirokawa N. Visualization of the dynamics of synaptic vesicle and plasma membrane proteins in living axons. J Cell Biol. 1998;140:659–74.
Jin Y, Garner CC. Molecular mechanisms of presynaptic differentiation. Annu Rev Cell Dev Biol. 2008;24:237–62.
Gundelfinger ED, Fejtova A. Molecular organization and plasticity of the cytomatrix at the active zone. Curr Opin Neurobiol. 2012;22:423–30.
Fenster SD, Chung WJ, Zhai R, Cases-Langhoff C, Voss B, Garner AM, et al. Piccolo, a presynaptic zinc finger protein structurally related to bassoon. Neuron. 2000;25:203–14.
Gundelfinger ED, Reissner C, Garner CC. Role of Bassoon and Piccolo in assembly and molecular organization of the active zone. Front Synaptic Neurosci. 2015;7:19.
Altrock WD, tom Dieck S, Sokolov M, Meyer AC, Sigler A, Brakebusch C, et al. Functional inactivation of a fraction of excitatory synapses in mice deficient for the active zone protein bassoon. Neuron. 2003;37:787–800.
Zhai RG, Vardinon-Friedman H, Cases-Langhoff C, Becker B, Gundelfinger ED, Ziv NE, et al. Assembling the presynaptic active zone: a characterization of an active one precursor vesicle. Neuron. 2001;29:131–43.
Lord C, Risi S, Lambrecht L, Cook EH, Leventhal BL, DiLavore PC, et al. The autism diagnostic observation schedule-generic: a standard measure of social and communication deficits associated with the spectrum of autism. J Autism Dev Disord. 2000;30:205–23.
Miles JH. Autism spectrum disorders-a genetics review. Genet Med. 2011;13:278–94.
Yuen RK, Thiruvahindrapuram B, Merico D, Walker S, Tammimies K, Hoang N, et al. Whole-genome sequencing of quartet families with autism spectrum disorder. Nat Med. 2015;21:185–91.
Sanders SJ, Murtha MT, Gupta AR, Murdoch JD, Raubeson MJ, Willsey AJ, et al. De novo mutations revealed by whole-exome sequencing are strongly associated with autism. Nature. 2012;485:237–41.
Iossifov I, O’Roak BJ, Sanders SJ, Ronemus M, Krumm N, Levy D, et al. The contribution of de novo coding mutations to autism spectrum disorder. Nature. 2014;515:216–21.
Tabuchi K, Blundell J, Etherton MR, Hammer RE, Liu X, Powell CM, et al. A neuroligin-3 mutation implicated in autism increases inhibitory synaptic transmission in mice. Science. 2007;318:71–6.
Peca J, Feliciano C, Ting JT, Wang WT, Wells MF, Venkatraman TN, et al. Shank3 mutant mice display autistic-like behaviours and striatal dysfunction. Nature. 2011;472:437–U534.
Tsai NP, Wilkerson JR, Guo WR, Maksimova MA, DeMartino GN, Cowan CW, et al. Multiple autism-linked genes mediate synapse elimination via proteasomal degradation of a synaptic scaffold PSD-95. Cell. 2012;151:1581–94.
Ebert DH, Greenberg ME. Activity-dependent neuronal signalling and autism spectrum disorder. Nature. 2013;493:327–37.
Davenport EC, Szulc BR, Drew J, Taylor J, Morgan T, Higgs NF, et al. Autism and Schizophrenia-Associated CYFIP1 Regulates the Balance of Synaptic Excitation and Inhibition. Cell Rep. 2019;26:2037–51. e2036.
Zoghbi HY. Postnatal neurodevelopmental disorders: meeting at the synapse? Science. 2003;302:826–30.
Bourgeron T. A synaptic trek to autism. Curr Opin Neurobiol. 2009;19:231–4.
Su QN, Cai Q, Gerwin C, Smith CL, Sheng ZH. Syntabulin is a microtubule-associated protein implicated in syntaxin transport in neurons. Nat Cell Biol. 2004;6:941–53.
Ylisaukko-oja T, Alarcon M, Cantor RM, Auranen M, Vanhala R, Kempas E, et al. Search for autism loci by combined analysis of autism genetic resource exchange and finnish families. Ann Neurol. 2006;59:145–55.
Delgado MS, Camprubi C, Tumer Z, Martinez F, Mila M, Monk D. Screening individuals with intellectual disability, autism and Tourette’s syndrome for KCNK9 mutations and aberrant DNA methylation within the 8q24 imprinted cluster. Am J Med Genet B. 2014;165:472–8.
Chen CH, Chen HI, Chien WH, Li LH, Wu YY, Chiu YN, et al. High resolution analysis of rare copy number variants in patients with autism spectrum disorder from Taiwan. Sci Rep. 2017;7:11919.
Herman GE, Hansen-Kiss E, Sadee W, Barrie E. A collaborative translational autism research program for the military. 2016 https://apps.dtic.mil/dtic/tr/fulltext/u2/a631878.pdf.
Perlson E, Jeong GB, Ross JL, Dixit R, Wallace KE, Kalb RG, et al. A switch in retrograde signaling from survival to stress in rapid-onset neurodegeneration. J Neurosci. 2009;29:9903–17.
Cohen-Cory S. The developing synapse: Construction and modulation of synaptic structures and circuits. Science. 2002;298:770–6.
Wong ROL, Ghosh A. Activity-dependent regulation of dendritic growth and patterning. Nat Rev Neurosci. 2002;3:803–12.
Isshiki M, Tanaka S, Kuriu T, Tabuchi K, Takumi T, Okabe S. Enhanced synapse remodelling as a common phenotype in mouse models of autism. Nat Commun. 2014;5:4742.
Knaus P, Betz H, Rehm H. Expression of synaptophysin during postnatal-development of the mouse brain. J Neurochem. 1986;47:1302–4.
Watson RE, DeSesso JM, Hurtt ME, Cappon GD. Postnatal growth and morphological development of the brain: a species comparison. Birth Defects Res B Dev Reprod Toxicol. 2006;77:471–84.
Xu J, Wang N, Luo JH, Xia J. Syntabulin regulates the trafficking of PICK1-containing vesicles in neurons. Sci Rep. 2016;6:20924.
Xia J, Zhang XQ, Staudinger J, Huganir RL. Clustering of AMPA receptors by the synaptic PDZ domain-containing protein PICK1. Neuron. 1999;22:179–87.
Terashima A, Pelkey KA, Rah JC, Suh YH, Roche KW, Collingridge GL, et al. An essential role for PICK1 in NMDA receptor-dependent bidirectional synaptic plasticity. Neuron. 2008;57:872–82.
Volk L, Kim CH, Takamiya K, Yu YL, Huganir RL. Developmental regulation of protein interacting with C kinase 1 (PICK1) function in hippocampal synaptic plasticity and learning. Proc Natl Acad Sci USA. 2010;107:21784–9.
Cai Q, Gerwin C, Sheng ZH. Syntabulin-mediated anterograde transport of mitochondria along neuronal processes. J Cell Biol. 2005;170:959–69.
Sheng ZH. The interplay of axonal energy homeostasis and mitochondrial trafficking and anchoring. Trends Cell Biol. 2017;27:403–16.
Phelps SM, Campbell P, Zheng DJ, Ophir AG. Beating the boojum: comparative approaches to the neurobiology of social behavior. Neuropharmacology. 2010;58:17–28.
Etherton M, Foldy C, Sharma M, Tabuchi K, Liu XR, Shamloo M, et al. Autism-linked neuroligin-3 R451C mutation differentially alters hippocampal and cortical synaptic function. Proc Natl Acad Sci USA. 2011;108:13764–9.
Won H, Lee HR, Gee HY, Mah W, Kim JI, Lee J, et al. Autistic-like social behaviour in Shank2-mutant mice improved by restoring NMDA receptor function. Nature. 2012;486:261–5.
Citri A, Malenka RC. Synaptic plasticity: multiple forms, functions, and mechanisms. Neuropsychopharmacology. 2008;33:18–41.
Luscher C, Malenka RC. NMDA receptor-dependent long-term potentiation and long-term depression (LTP/LTD). Cold Spring Harb Perspect Biol. 2012;4:a005710.
Beattie EC, Carroll RC, Yu X, Morishita W, Yasuda H, von Zastrow M, et al. Regulation of AMPA receptor endocytosis by a signaling mechanism shared with LTD. Nat Neurosci. 2000;3:1291–300.
Hanley JG. Molecular mechanisms for regulation of AMPAR trafficking by PICK1. Biochem Soc Trans. 2006;34:931–5.
Rocca DL, Martin S, Jenkins EL, Hanley JG. Inhibition of Arp2/3-mediated actin polymerization by PICK1 regulates neuronal morphology and AMPA receptor endocytosis. Nat Cell Biol. 2008;10:259–U257.
Fiuza M, Rostosky CM, Parkinson GT, Bygrave AM, Halemani N, Baptista M, et al. PICK1 regulates AMPA receptor endocytosis via direct interactions with AP2 alpha-appendage and dynamin. J Cell Biol. 2017;216:3323–38.
Asrican B, Lisman J, Otmakhov N. Synaptic strength of individual spines correlates with bound Ca2+-calmodulin-dependent kinase II. J Neurosci. 2007;27:14007–11.
Matsuzaki M, Ellis-Davies GC, Nemoto T, Miyashita Y, Iino M, Kasai H. Dendritic spine geometry is critical for AMPA receptor expression in hippocampal CA1 pyramidal neurons. Nat Neurosci. 2001;4:1086–92.
Segal M. Dendritic spines and long-term plasticity. Nat Rev Neurosci. 2005;6:277–84.
Zhou Q, Homma KJ, Poo MM. Shrinkage of dendritic spines associated with long-term depression of hippocampal synapses. Neuron. 2004;44:749–57.
Nagerl UV, Eberhorn N, Cambridge SB, Bonhoeffer T. Bidirectional activity-dependent morphological plasticity in hippocampal neurons. Neuron. 2004;44:759–67.
Xu-Friedman MA, Regehr WG. Probing fundamental aspects of synaptic transmission with strontium. J Neurosci. 2000;20:4414–22.
Hagler DJ, Goda Y. Properties of synchronous and asynchronous release during pulse train depression in cultured hippocampal neurons. J Neurophysiol. 2001;85:2324–34.
Moy SS, Nadler JJ, Perez A, Barbaro RP, Johns JM, Magnuson TR, et al. Sociability and preference for social novelty in five inbred strains: an approach to assess autistic-like behavior in mice. Genes Brain Behav. 2004;3:287–302.
Thor DH, Holloway WR. Social memory of the male laboratory rat. J Comp Physiol Psychol. 1982;96:1000–6.
Mody M, Belliveau JW. Speech and language impairments in autism: Insights from behavior and neuroimaging. N Am J Med Sci. 2013;5:157–61.
Chung W, Choi SY, Lee E, Park H, Kang J, Park H, et al. Social deficits in IRSp53 mutant mice improved by NMDAR and mGluR5 suppression. Nat Neurosci. 2015;18:435–43.
Maggio JC, Maggio JH, Whitney G. Experience-based vocalization of male-mice to female chemosignals. Physiol Behav. 1983;31:269–72.
Devor M, Murphy MR. The effect of peripheral olfactory blockade on the social behavior of the male golden hamster. Behav Biol. 1973;9:31–42.
Dong Z, Bai Y, Wu X, Li H, Gong B, Howland JG, et al. Hippocampal long-term depression mediates spatial reversal learning in the Morris water maze. Neuropharmacology. 2013;64:65–73.
Nicholls RE, Alarcon JM, Malleret G, Carroll RC, Grody M, Vronskaya S, et al. Transgenic mice lacking NMDAR-dependent LTD exhibit deficits in behavioral flexibility. Neuron. 2008;58:104–17.
Baudouin SJ, Gaudias J, Gerharz S, Hatstatt L, Zhou KK, Punnakkal P, et al. Shared synaptic pathophysiology in syndromic and nonsyndromic rodent models of autism. Science. 2012;338:128–32.
Zoghbi HY, Bear MF. Synaptic dysfunction in neurodevelopmental disorders associated with autism and intellectual disabilities. Cold Spring Harb Perspect Biol. 2012;4:a009886.
Lee E, Lee J, Kim E. Excitation/inhibition imbalance in animal models of autism spectrum disorders. Biol Psychiat. 2017;81:838–47.
Hines RM, Wu LJ, Hines DJ, Steenland H, Mansour S, Dahlhaus R, et al. Synaptic imbalance, stereotypies, and impaired social interactions in mice with altered neuroligin 2 expression. J Neurosci. 2008;28:6055–67.
Wang X, McCoy PA, Rodriguiz RM, Pan Y, Je HS, Roberts AC, et al. Synaptic dysfunction and abnormal behaviors in mice lacking major isoforms of Shank3. Hum Mol Genet. 2011;20:3093–108.
Hung AY, Futai K, Sala C, Valtschanoff JG, Ryu J, Woodworth MA, et al. Smaller dendritic spines, weaker synaptic transmission, but enhanced spatial learning in mice lacking Shank1. J Neurosci. 2008;28:1697–708.
Matz J, Gilyan A, Kolar A, McCarvill T, Krueger SR. Rapid structural alterations of the active zone lead to sustained changes in neurotransmitter release. Proc Natl Acad Sci USA. 2010;107:8836–41.
Hallermann S, Fejtova A, Schmidt H, Weyhersmuller A, Silver RA, Gundelfinger ED, et al. Bassoon speeds vesicle reloading at a central excitatory synapse. Neuron. 2010;68:710–23.
Yin X, Takei Y, Kido MA, Hirokawa N. Molecular motor KIF17 is fundamental for memory and learning via differential support of synaptic NR2A/2B levels. Neuron. 2011;70:310–25.
Alsabban AH, Morikawa M, Tanaka Y, Takei Y, Hirokawa N. Kinesin Kif3b mutation reduces NMDAR subunit NR2A trafficking and causes schizophrenia-like phenotypes in mice. EMBO J. 2020;39:e101090.
Morikawa M, Tanaka Y, Cho HS, Yoshihara M, Hirokawa N. The molecular motor KIF21B mediates synaptic plasticity and fear extinction by terminating Rac1 activation. Cell Rep. 2018;23:3864–77.
Belger A, Carpenter KL, Yucel GH, Cleary KM, Donkers FC. The neural circuitry of autism. Neurotox Res. 2011;20:201–14.
Amodio DM, Frith CD. Meeting of minds: the medial frontal cortex and social cognition. Nat Rev Neurosci. 2006;7:268–77.
Felix-Ortiz AC, Tye KM. Amygdala inputs to the ventral hippocampus bidirectionally modulate social behavior. J Neurosci. 2014;34:586–95.
Kogan JH, Frankland PW, Silva AJ. Long-term memory underlying hippocampus- dependent social recognition in mice. Hippocampus. 2000;10:47–56.
Acknowledgements
We thank members of the Sheng lab for technical assistance and constructive discussion, Zezhi Li for assistance in analyzing human sequence data, Eckart Gundelfinger for EGFP-Bassoon, Richard Youle for pCMV-DsRed-Mito, Jun Xia for YFP-PICK1, the NIH/NICHD rodent behavioral core facility and Daniel Tadese Abebe for assistance in animal behavioral tests, the NINDS Electron Microscopy Facility and Susan Cheng for assistance in TEM analysis, and Kelly Chamberlain and Joseph Roney for critical reading/editing.
Funding
This work was supported by the Intramural Research Program of NINDS, NIH ZIA NS003029, and ZIA NS002946 (Z-H.S).
Author information
Authors and Affiliations
Contributions
G-J.X and Z-H.S designed the project, G-J.X performed synaptic physiological and behavioral studies and analyzed data, X-T.C, TS, YX, SL, NH, and M-Y.L performed biochemical and cell biological experiments, Z-H.S is the senior author who conceived and directed the project; G-J.X and Z-H.S wrote the manuscript.
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no competing interests.
Ethical approval
Animal care and use were carried out in accordance with NIH guidelines and approved by the NIH, NINDS/NIDCD Animal Care and Use Committee.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Supplementary information
Rights and permissions
About this article
Cite this article
Xiong, GJ., Cheng, XT., Sun, T. et al. Defects in syntabulin-mediated synaptic cargo transport associate with autism-like synaptic dysfunction and social behavioral traits. Mol Psychiatry 26, 1472–1490 (2021). https://doi.org/10.1038/s41380-020-0713-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/s41380-020-0713-9
This article is cited by
-
Syntabulin regulates neuronal excitation/inhibition balance and epileptic seizures by transporting syntaxin 1B
Cell Death Discovery (2023)
-
Advances in autism research, 2021: continuing to decipher the secrets of autism
Molecular Psychiatry (2021)