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Cell-specific STORM super-resolution imaging reveals nanoscale organization of cannabinoid signaling

  • Barna Dudok
  • , László Barna
  • , Marco Ledri
  • , Szilárd I. Szabó
  • , Eszter Szabadits
  • , Balázs Pintér
  • , Stephen G. Woodhams
  • , Christopher M. Henstridge
  • , Gyula Y. Balla
  • , Rita Nyilas
  • , Csaba Varga
  • , Sang Hun Lee
  • , Máté Matolcsi
  • , Judit Cervenak
  • , Imre Kacskovics
  • , Masahiko Watanabe
  • , Claudia Sagheddu
  • , Miriam Melis
  • , Marco Pistis
  • , Ivan Soltesz
  • István Katona

Producción científica: Articlerevisión exhaustiva

208 Citas (Scopus)

Resumen

A major challenge in neuroscience is to determine the nanoscale position and quantity of signaling molecules in a cell type-and subcellular compartment-specific manner. We developed a new approach to this problem by combining cell-specific physiological and anatomical characterization with super-resolution imaging and studied the molecular and structural parameters shaping the physiological properties of synaptic endocannabinoid signaling in the mouse hippocampus. We found that axon terminals of perisomatically projecting GABAergic interneurons possessed increased CB 1 receptor number, active-zone complexity and receptor/effector ratio compared with dendritically projecting interneurons, consistent with higher efficiency of cannabinoid signaling at somatic versus dendritic synapses. Furthermore, chronic Δ9-tetrahydrocannabinol administration, which reduces cannabinoid efficacy on GABA release, evoked marked CB 1 downregulation in a dose-dependent manner. Full receptor recovery required several weeks after the cessation of Δ9-tetrahydrocannabinol treatment. These findings indicate that cell type-specific nanoscale analysis of endogenous protein distribution is possible in brain circuits and identify previously unknown molecular properties controlling endocannabinoid signaling and cannabis-induced cognitive dysfunction.

Idioma originalEnglish
Páginas (desde-hasta)75-86
Número de páginas12
PublicaciónNature Neuroscience
Volumen18
N.º1
DOI
EstadoPublished - ene 1 2015

Nota bibliográfica

Publisher Copyright:
© 2015 Nature America, Inc. All rights reserved.

Financiación

We are grateful to E. Tischler and G. Goda for their excellent technical assistance, I. Mih\u00E1ly for bouton distribution analysis, and C. Cser\u00E9p and C. Fekete for their help with immunostaining and antibody labeling protocols. The authors are indebted to A. Zimmer (University of Bonn) for providing the CB1 knockout mouse line and to A. T\u00EDm\u00E1r for his help with software analysis. We also thank N. H\u00E1jos, N. Holderith, N. Lenkey and Z. Nusser for their comments on the manuscript. The help of the Nikon Microscopy Center at the Institute of Experimental Medicine, Nikon Europe B.V., Nikon Austria GmbH and Auro-Science Consulting is greatly acknowledged for kindly providing microscopy support. This study was primarily supported by the European Research Council Grant 243153 and by the Momentum Program (LP2013-54/2013) of the Hungarian Academy of Sciences to I. Katona. The project was also funded by the Hungarian Academy of Sciences Equipment Grant (IF-22/2012) for super-resolution microscopy. I. Katona is a recipient of the Wellcome Trust International Senior Research Fellowship (090946/Z/09/Z). Additional support was provided by the US National Institutes of Health (NS74432) to I.S., and by the Italian Ministry of University (Grant PRIN 2009: 200928EEX4) and \u201CFondazione Banco di Sardegna\u201D to M.P.

FinanciadoresNúmero del financiador
Fondazione Banco di Sardegna
National Institutes of Health (NIH)
European Commission
Ministero dell’Istruzione, dell’Università e della RicercaPRIN 2009: 200928EEX4
Wellcome Trust090946/Z/09/Z, 090946
Seventh Framework Programme243153
Magyar Tudományos AkadémiaIF-22/2012
H2020 European Research CouncilLP2013-54/2013
Institute of Neurological Disorders and Stroke National Advisory Neurological Disorders and Stroke CouncilR01NS074432
Japan Society for the Promotion of Science Fund for the Promotion of Joint International Research24220007

    ASJC Scopus subject areas

    • General Neuroscience

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