Minkeviciene , R , Hlushchenko , I , Virenque , A , Lahti , L , Khanal , P , Rauramaa , T , Koistinen , A , Leinonen , V , Noé , F M & Hotulainen , P 2019 , ' MIM-Deficient Mice Exhibit Anatomical Changes in Dendritic Spines, Cortex Volume and Brain Ventricles, and Functional Changes in Motor Coordination and Learning ' , Frontiers in Molecular Neuroscience , vol. 12 , 276 . https://doi.org/10.3389/fnmol.2019.00276
Title: | MIM-Deficient Mice Exhibit Anatomical Changes in Dendritic Spines, Cortex Volume and Brain Ventricles, and Functional Changes in Motor Coordination and Learning |
Author: | Minkeviciene, Rimante; Hlushchenko, Iryna; Virenque, Anaïs; Lahti, Lauri; Khanal, Pushpa; Rauramaa, Tuomas; Koistinen, Arto; Leinonen, Ville; Noé, Francesco Mattia; Hotulainen, Pirta |
Contributor organization: | Medicum Neuroscience Center University of Helsinki Helsinki Institute of Life Science HiLIFE |
Date: | 2019-11-15 |
Language: | eng |
Number of pages: | 20 |
Belongs to series: | Frontiers in Molecular Neuroscience |
ISSN: | 1662-5099 |
DOI: | https://doi.org/10.3389/fnmol.2019.00276 |
URI: | http://hdl.handle.net/10138/309075 |
Abstract: | In this study, we performed a comprehensive behavioral and anatomical analysis of the Missing in Metastasis (Mtss1/MIM) knockout (KO) mouse brain. We also analyzed the expression of MIM in different brain regions at different ages. MIM is an I-BAR containing membrane curving protein, shown to be involved in dendritic spine initiation and dendritic branching in Purkinje cells in the cerebellum. Behavioral analysis of MIM KO mice revealed defects in both learning and reverse-learning, alterations in anxiety levels and reduced dominant behavior, and confirmed the previously described deficiency in motor coordination and pre-pulse inhibition. Anatomically, we observed enlarged brain ventricles and decreased cortical volume. Although MIM expression was relatively low in hippocampus after early development, hippocampal pyramidal neurons exhibited reduced density of thin and stubby dendritic spines. Learning deficiencies can be connected to all detected anatomical changes. Both behavioral and anatomical findings are typical for schizophrenia mouse models. |
Subject: |
CORTICAL PYRAMIDAL NEURONS
DENSITY MEMORY PLATFORM SCHIZOPHRENIA anxiety brain ventricles dendritic spines learning motor coordination 3112 Neurosciences 3124 Neurology and psychiatry |
Peer reviewed: | Yes |
Rights: | cc_by |
Usage restriction: | openAccess |
Self-archived version: | publishedVersion |
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