Comprehensive Autopsy Program for Individuals with Multiple Sclerosis

作者： Ranjan Dutta*1, Kedar R. Mahajan*1,3, Kunio Nakamura*3, Daniel Ontaneda*2, Jacqueline Chen1, Christina Volsko1, Jessica Dudman1, Emilie Christie1, Jordon Dunham1, Robert J. Fox3, Bruce D. Trapp1 1Department of Neurosciences, Lerner Research Institute,Cleveland Clinic, 2Department of Biomedical Engineering, Lerner Research Institute,Cleveland Clinic, 3Mellen Center for Treatment and Research in Multiple Sclerosis, Neurological Institute,Cleveland Clinic

简介：

Overview

This study investigates the pathogenesis of Multiple Sclerosis (MS) through a unique rapid autopsy program that collects brain tissue within hours of death. The methodology includes in situ MRI for correlating pathological changes with brain imaging, facilitating advanced molecular studies and analysis of MS brain tissue.

Key Study Components

Area of Science

• Neuroscience
• Neuroimmunology
• Pathology

Background

• Multiple sclerosis is a chronic inflammatory demyelinating disease.
• Current understanding of its pathogenesis is limited due to insufficient brain tissue analysis.
• The rapid autopsy program allows for timely collection of brain samples for research.
• Correlation of pathological and imaging findings enhances understanding of disease mechanisms.

Purpose of Study

• To elucidate the pathogenesis of Multiple Sclerosis.
• To utilize rapid autopsy brain tissue for comprehensive molecular analysis.
• To establish a methodology that overcomes challenges in tissue integrity and processing.

Methods Used

• A rapid autopsy program collects brain tissue within six to eight hours post-mortem.
• In situ MRI is performed before brain removal to correlate brain imaging changes with pathological observations.
• Processing allows RNA analysis, immunostaining, and immunoblotting.
• Key steps include photographing, sectioning, fixation, and appropriate storage of brain tissues.

Main Results

• The study demonstrates effective tissue processing and analysis techniques that maintain tissue integrity.
• Insights into immune activity and demyelination are observed through specific staining methods.
• Identification of axonal retraction bulbs highlights injury mechanisms in acute MS lesions.
• Detailed methodology provides a foundation for further investigations into MS pathology.

Conclusions

• This study enables a better understanding of MS through real-time tissue analysis.
• Timely collection and advanced methodologies allow for comprehensive insights into disease mechanisms.
• The findings have implications for developing potential therapeutic strategies for MS.

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