Antimicrobial peptides and proteins are expressed in the CNS and play multifunctional roles in neuroinflammation beyond their antimicrobial activity.
Dual brain rolesAMPs both fight CNS infections and modulate neuroinflammation in neurological diseases
What the researchers found
AMPs are expressed in the CNS at basal levels, upregulated in neurological disorders, and play multifunctional roles in neuroinflammation including immune modulation and neuroprotection beyond antimicrobial activity.
Why it matters
Understanding the dual role of AMPs in infection defense and brain inflammation could reveal new targets for treating neurodegenerative and neuroinflammatory diseases.
How the study worked
Review of antimicrobial peptide/protein expression, regulation, and functions in the central nervous system and neurological disorders.
What this study cannot tell us
Review article — synthesizes existing evidence without new experimental data. The complexity of AMP roles in the CNS makes therapeutic targeting challenging.
How to read the evidence
Narrative review — provides comprehensive overview but no new primary data.
When this study was published
Published in 2026; reflects the rapidly growing neuroimmunology field.
The bigger picture
This highlights an emerging paradigm where innate immune molecules serve dual purposes — protecting against infection while also modulating neurological function and disease.
Questions still open
- Can AMP levels in cerebrospinal fluid serve as biomarkers for neurological diseases?
- Could modulating specific AMPs in the brain treat neuroinflammatory conditions?
Common questions
Do we have natural antibiotics in our brains?
How do antimicrobial peptides affect brain diseases?
Read the original research
Antimicrobial proteins regulating neuroinflammation.
Annals of medicine, 58(1), 2610072
Citation
Bhusal, Anup; Lee, Won-Ha; Suk, Kyoungho. (2026). Antimicrobial proteins regulating neuroinflammation.. Annals of medicine, 58(1), 2610072. https://doi.org/10.1080/07853890.2025.2610072