Related Experiment Video
Updated: May 10, 2026
Validation of a Mouse Model to Disrupt LINC Complexes in a Cell-specific Manner
Published on: December 10, 2015
Molecular layer heterotopia of the cerebellar vermis in mutant and transgenic mouse models on a C57BL/6 background
Raddy L Ramos1, Sarah E Van Dine, Elizabeth George
1Department of Biomedical Sciences, New York Institute of Technology, College of Osteopathic Medicine, Old Westbury, NY 11568-8000, USA. rramos02@nyit.edu
Abstract:
C57BL/6 mice exhibit spontaneous cerebellar malformations consisting of heterotopic neurons and glia in the molecular layer of the vermis (Tanaka and Marunouchi, 2005; Mangaru et al., 2013). Malformations are only found between folia VIII and IX and are indicative of deficits of neuronal migration during cerebellar development. In the present report we test the prediction that mutant and transgenic mouse models on a C57BL/6 background will also exhibit these same cerebellar malformations. Consistent with our hypothesis, we found that 2 spontaneous mutant models of Parkinson's disease on a C57BL/6 background had cerebellar malformations. In addition, we found that numerous transgenic mouse lines on a full or partial C57BL/6 background including eGFP-, YFP- and Cre-transgenic mice also exhibited heterotopia. These data suggest that histological analyses be performed in studies of cerebellar function or development when using C57BL/6 or other mice on this background in order for correct interpretation of research results.
Insights
C57BL/6 mice can develop cerebellar malformations, including misplaced neurons and glia. This study found similar defects in Parkinson
Area of Science:
- Neuroscience
- Developmental Biology
- Genetics
Background:
- C57BL/6 mice commonly exhibit spontaneous cerebellar malformations.
- These malformations involve heterotopic neurons and glia in the molecular layer of the vermis, specifically between folia VIII and IX.
- Such defects indicate issues with neuronal migration during cerebellar development.
Purpose of the Study:
- To investigate whether mutant and transgenic mouse models on a C57BL/6 background also display these cerebellar malformations.
- To determine if genetic modifications or specific genetic backgrounds influence the occurrence of cerebellar heterotopia.
Main Methods:
- Histological analysis of cerebellar tissue from various mouse models.
- Examination of spontaneous mutant models of Parkinson's disease.
- Assessment of multiple transgenic mouse lines (eGFP-, YFP-, Cre-transgenic) on C57BL/6 backgrounds.
Main Results:
- Two spontaneous mutant models of Parkinson's disease on a C57BL/6 background exhibited cerebellar malformations.
- Numerous transgenic mouse lines, including eGFP-, YFP-, and Cre-transgenic mice, also showed cerebellar heterotopia.
- These malformations were observed in mice with full or partial C57BL/6 backgrounds.
Conclusions:
- C57BL/6 mice and their genetic derivatives are prone to cerebellar malformations.
- Histological evaluation is crucial for accurate interpretation of cerebellar function and development studies using these mouse models.
- Researchers should consider these findings when designing experiments involving C57BL/6-derived mouse lines to avoid misinterpreting results.
