Related Experiment Videos
S100B in brain damage and neurodegeneration
Matthias Rothermundt1, Marion Peters, Jochen H M Prehn
1Department of Psychiatry, University of Muenster, D-48149 Muenster, Germany. rothermu@uni-muenster.de
Microscopy Research and Technique
|March 20, 2003
Summary
S100B, a protein mainly from astrocytes, impacts brain function and survival. Its concentration affects neuronal health, with higher levels linked to brain damage and neurodegenerative diseases.
Area of Science:
- Neuroscience
- Cell Biology
- Biochemistry
Background:
- S100B is a calcium-binding protein secreted by astrocytes.
- It influences neuronal and glial cells via paracrine and autocrine signaling.
- Its roles in cellular metabolism, cytoskeleton, proliferation, and differentiation are studied.
Purpose of the Study:
- To review S100B's function in human brain damage and neurodegeneration.
- To consolidate findings from in vitro and animal studies relevant to human conditions.
- To discuss methodological challenges and future research directions.
Main Methods:
- Literature review of in vitro and in vivo studies.
- Analysis of research on S100B in traumatic, ischemic, and inflammatory brain injuries.
- Examination of S100B's role in neurodegenerative and psychiatric disorders.
Main Results:
- Nanomolar S100B supports neuronal growth and survival.
- Micromolar S100B induces inflammation and apoptosis.
- Altered S100B levels in animals cause cognitive deficits and behavioral issues.
- Elevated S100B is observed in human brain trauma, ischemia, and neurodegenerative diseases.
Conclusions:
- S100B concentration critically determines its neurotrophic or neurotoxic effects.
- Increased S100B is a biomarker for various human brain pathologies.
- Further research is needed to clarify S100B's complex roles and therapeutic potential.