Decreased Expression of Synaptophysin 1 (SYP1 Major Synaptic Vesicle Protein p38) and Contactin 6 (CNTN6/NB3) in the Cerebellar Vermis of reln Haplodeficient Mice.
In: Cellular and molecular neurobiology, Jg. 39 (2019-08-01), Heft 6, S. 833-856
Online
academicJournal
Zugriff:
Reeler heterozygous mice (reln +/- ) are seemingly normal but haplodeficient in reln, a gene implicated in autism. Structural/neurochemical alterations in the reln +/- brain are subtle and difficult to demonstrate. Therefore, the usefulness of these mice in translational research is still debated. As evidence implicated several synapse-related genes in autism and the cerebellar vermis is structurally altered in the condition, we have investigated the expression of synaptophysin 1 (SYP1) and contactin 6 (CNTN6) within the vermis of reln +/- mice. Semi-thin plastic sections of the vermis from adult mice of both sexes and different genotypes (reln +/- and reln +/+ ) were processed with an indirect immunofluorescence protocol. Immunofluorescence was quantified on binary images and statistically analyzed. Reln +/- males displayed a statistically significant reduction of 11.89% in the expression of SYP1 compared to sex-matched wild-type animals, whereas no differences were observed between reln +/+ and reln +/- females. In reln +/- male mice, reductions were particularly evident in the molecular layer: 10.23% less SYP1 than reln +/+ males and 5.84% < reln +/+ females. In reln +/- females, decrease was 9.84% versus reln +/+ males and 5.43% versus reln +/+ females. Both reln +/- males and females showed a stronger decrease in CNTN6 expression throughout all the three cortical layers of the vermis: 17-23% in the granular layer, 24-26% in the Purkinje cell layer, and 9-14% in the molecular layer. Altogether, decrease of vermian SYP1 and CNTN6 in reln +/- mice displayed patterns compatible with the structural modifications of the autistic cerebellum. Therefore, these mice may be a good model in translational studies.
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Decreased Expression of Synaptophysin 1 (SYP1 Major Synaptic Vesicle Protein p38) and Contactin 6 (CNTN6/NB3) in the Cerebellar Vermis of reln Haplodeficient Mice.
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Autor/in / Beteiligte Person: | Castagna, C ; Merighi, A ; Lossi, L |
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Zeitschrift: | Cellular and molecular neurobiology, Jg. 39 (2019-08-01), Heft 6, S. 833-856 |
Veröffentlichung: | 1999- : New York : Kluwer Academic/Plenum Publishers ; <i>Original Publication</i>: New York : Plenum Press, c1981-, 2019 |
Medientyp: | academicJournal |
ISSN: | 1573-6830 (electronic) |
DOI: | 10.1007/s10571-019-00683-7 |
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