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Cartography of hevin-expressing cells in the adult brain reveals prominent expression in astrocytes and parvalbumin neurons

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Abstract

Hevin, also known as SPARC-like 1, is a member of the secreted protein acidic and rich in cysteine family of matricellular proteins, which has been implicated in neuronal migration and synaptogenesis during development. Unlike previously characterized matricellular proteins, hevin remains strongly expressed in the adult brain in both astrocytes and neurons, but its precise pattern of expression is unknown. The present study provides the first systematic description of hevin mRNA distribution in the adult mouse brain. Using isotopic in situ hybridization, we showed that hevin is strongly expressed in the cortex, hippocampus, basal ganglia complex, diverse thalamic nuclei and brainstem motor nuclei. To identify the cellular phenotype of hevin-expressing cells, we used double fluorescent in situ hybridization in mouse and human adult brains. In the mouse, hevin mRNA was found in the majority of astrocytes but also in specific neuronal populations. Hevin was expressed in almost all parvalbumin-positive projection neurons and local interneurons. In addition, hevin mRNA was found in: (1) subsets of other inhibitory GABAergic neuronal subtypes, including calbindin, cholecystokinin, neuropeptide Y, and somatostatin-positive neurons; (2) subsets of glutamatergic neurons, identified by the expression of the vesicular glutamate transporters VGLUT1 and VGLUT2; and (3) the majority of cholinergic neurons from motor nuclei. Hevin mRNA was absent from all monoaminergic neurons and cholinergic neurons of the ascending pathway. A similar cellular profile of expression was observed in human, with expression of hevin in parvalbumin interneurons and astrocytes in the cortex and caudate nucleus as well as in cortical glutamatergic neurons. Furthermore, hevin transcript was enriched in ribosomes of astrocytes and parvalbumin neurons providing a direct evidence of hevin mRNAs translation in these cell types. This study reveals the unique and complex expression profile of the matricellular protein hevin in the adult brain. This distribution is compatible with a role of hevin in astrocytic-mediated adult synaptic plasticity and in the regulation of network activity mediated by parvalbumin-expressing neurons.

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Abbreviations

3V:

3rd ventricle

4V:

4th ventricle

AD:

Anterodorsal thalamic nucleus

ac:

Anterior commissure

AD:

Anterodorsal thalamic nucleus

AM:

Anteromedial thalamic nucleus

Amb:

Ambiguus nucleus

AON:

Anterior olfactory nucleus

APT:

Anterior pretectal nucleus

AVL:

Anteroventral thalamic nucleus, lateral part

AVM:

Anteroventral thalamic nucleus, medial part

Berg.:

Bergman glia

BLA:

Basolateral amygdala

CA1-3:

Cornu ammonis

Cb:

Cerebellum

cc:

Corpus callosum

ChP:

Choroid plexus

Cl:

Claustrum

CPu:

Caudate putamen

Cx:

Cortex

DBB:

Diagonal band of Broca

DG:

Dentate gyrus

DLG:

Dorsal lateral geniculate nucleus

DM:

Dorsomedial hypothalamic nucleus

DRc:

Dorsal raphe nucleus caudal part

GCL:

Granule cell layer

Gl:

Glomerular layer

HDB:

Nucleus of the horizontal limb of the diagonal band

Hipp:

Hippocampus

IC:

Inferior colliculus

ic:

Internal capsule

IPN:

Interpeduncular nucleus

LDDM:

Laterodorsal thalamic nucleus, dorsomedial part

LDTg:

Laterodorsal tegmental nucleus

LGP:

Lateral globus pallidus

LH:

Lateral hypothalamic area

LHb:

Lateral habenula nucleus

LP:

Lateral posterior thalamic nucleus

LS:

Lateral septal nucleus

LSd:

Lateral septal nucleus, dorsal part

LV:

Lateral ventricle

MCPO:

Magnocellular preoptic nucleus

MD:

Mediodorsal thalamic nucleus

MGP:

Medial globus pallidus

Mi:

Mitral cell layer of the olfactory bulb

ML:

Molecular layer

Mol:

Molecular layer of the dentate gyrus

MPO:

Medial preoptic nucleus

MRc:

Median raphe nucleus caudal part

MS:

Medial septum

Mve:

Medial vestibular nucleus

Or:

Oriens layer of the hippocampus

PAG:

Periaqueductal gray

PCL:

Purkinje cell layer

Pn:

Pontine nucleus

Po:

Posterior thalamic nuclear group

PrS:

Presubiculum

PVA:

Paraventricular thalamic nucleus, anterior part

Rad:

Stratum radiatum of the hippocampus

Re:

Reuniens thalamic nucleus

RMC:

Red nucleus, magnocellular part

RN:

Red nucleus

Rt:

Reticular thalamic nucleus

SC:

Superior colliculus

SNc:

Substantia nigra pars compacta

SNr:

Substantia nigra pars reticulata

Sp5:

Spinal trigeminal nucleus

Tg:

Tegmental nucleus

VA:

Ventral anterior thalamic nucleus

Vest:

Vestibular nucleus

VP:

Ventral pallidum

VPM:

Ventral posteromedial thalamic nucleus

VTA:

Ventral tegmental area

ZI:

Zona incerta

III:

Oculomotor nucleus

V:

Motor trigeminal nucleus

VI:

Abducens nucleus

VII:

Facial nucleus

VIII:

Cochlear nucleus

IX:

Glossopharyngeal nucleus

X:

Dorsal motor nucleus of vagus

XII:

Hypoglossal nucleus

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Acknowledgements

This work was supported by funds from the Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), and Sorbonne Université, and by grants from the Brain & Behavior Research Foundation (NARSAD Young Investigator Award to VV, #17566), FP7 Marie Curie Actions Career Integration Grant (FP7-PEOPLE-2013-CIG #618807 to VV), Promouvoir l’Excellence de la Recherche à Sorbonne Université (PER-SU 2014 to VV), Agence Nationale de la Recherche (ANR JCJC 2015 Hevinsynapse to VV), the Basque Government (IT616/13 to JJM), Fondation pour la Recherche Médicale (DEQ20160334919 to EV), Fundación Vital (2018 to AME) and the European Foundation for Alcohol Research (EA 18 19 to LFC). The authors thank Etienne Audinat for the PV-Cre mice and Glenn Dallerac for the GFAP-CreERT2. EP was a recipient of Marie Curie Intra-European Fellowship (IEF327648). LC has benefited from support by the Labex EpiGenMed (Investissements d’avenir #ANR-10-LABX-12-01). We thank Catalina Betancur for helpful discussions and comments on the manuscript; the staff members of the Basque Institute of Legal Medicine for processing the postmortem human brain samples; Stéphane Fouquet, David Godefroy, and Marie-Laure Niepon of the Imaging Facility at Institut de la Vision; Annick Prigeant of the Histology Facility at Institut du Cerveau et de la Moelle; and Chooyoung Baek and Audrey Pondaven for their help with the FISH experiments.

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Correspondence to Vincent Vialou.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. In addition, all applicable international, national, and/or institutional guidelines for the care and use of animals were followed.

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Mongrédien, R., Erdozain, A.M., Dumas, S. et al. Cartography of hevin-expressing cells in the adult brain reveals prominent expression in astrocytes and parvalbumin neurons. Brain Struct Funct 224, 1219–1244 (2019). https://doi.org/10.1007/s00429-019-01831-x

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  • DOI: https://doi.org/10.1007/s00429-019-01831-x

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