Abstract
Reparative inflammation is an important protective response that eliminates foreign organisms, damaged cells, and physical irritants. However, inappropriately triggered or sustained inflammation can respectively initiate, propagate, or prolong disease. Post-hemorrhagic (PHH) and post-infectious hydrocephalus (PIH) are the most common forms of hydrocephalus worldwide. They are treated using neurosurgical cerebrospinal fluid (CSF) diversion techniques with high complication and failure rates. Despite their distinct etiologies, clinical studies in human patients have shown PHH and PIH share similar CSF cytokine and immune cell profiles. Here, in light of recent work in model systems, we discuss the concept of “inflammatory hydrocephalus” to emphasize potential shared mechanisms and potential therapeutic vulnerabilities of these disorders. We propose that this change of emphasis could shift our thinking of PHH and PIH from a framework of life-long neurosurgical disorders to that of preventable conditions amenable to immunomodulation.
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Abbreviations
- PHH:
-
Post-hemorrhagic hydrocephalus
- PIH:
-
Post-infectious hydrocephalus
- TLR:
-
Toll-like receptor
- CSF:
-
Cerebrospinal fluid
- ChP:
-
Choroid plexus epithelium
- CPC:
-
Choroid plexus cauterization
- NKCC1:
-
Na-K-Cl cotransporter 1
- SPAK:
-
STE20/SPS1-related, proline-alanine-rich kinase
- IVH:
-
Intraventricular hemorrhage
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KTK is supported by the NIH (RO1NS109358-04) and the Hydrocephalus Association.
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Robert, S.M., Reeves, B.C., Marlier, A. et al. Inflammatory hydrocephalus. Childs Nerv Syst 37, 3341–3353 (2021). https://doi.org/10.1007/s00381-021-05255-z
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DOI: https://doi.org/10.1007/s00381-021-05255-z