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Published on: August 5, 2014
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Complex Autoantibody Responses Occur following Moderate to Severe Traumatic Brain Injury.
Edward J Needham1,2, Oda Stoevesandt3, Eric P Thelin4,5,6
1Department of Clinical Neurosciences, University of Cambridge, United Kingdom; edneedham@doctors.org.uk.
Journal of Immunology (Baltimore, Md. : 1950)
|June 19, 2021
Summary
Severe traumatic brain injury (TBI) can trigger unique autoantibody responses. These immune responses, particularly IgM, are linked to worse outcomes and ongoing neurodegeneration after TBI.
Area of Science:
- Neuroscience
- Immunology
- Trauma Research
Background:
- Prognostic factors for severe traumatic brain injury (TBI) outcomes are incomplete.
- Neuroinflammation is a potential contributor to TBI outcome variability.
Purpose of the Study:
- To investigate if TBI generates variable autoantibody responses.
- To determine the association between autoantibody profiles and TBI patient outcomes.
Main Methods:
- Developed a custom protein microarray to detect autoantibodies against CNS and systemic antigens.
- Analyzed serum from TBI patients at acute, late, and long-term intervals.
- Correlated autoantibody patterns with clinical outcomes and neurodegeneration markers.
Main Results:
- Identified two distinct autoantibody response patterns post-TBI.
- A broad IgM-mediated acute response correlated with worse-than-predicted outcomes.
- Specific autoantibodies, like anti-MAG, showed varied persistence; anti-MAG IgM persistence linked to neurodegeneration.
Conclusions:
- Autoantibody production is a significant, variable response in some TBI patients.
- Autoantibody profiles can persist for years and are associated with poorer outcomes.
- Complex autoantibody responses necessitate comprehensive analysis beyond single targets.
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