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The case for immunomodulatory approaches in treating HSV encephalitis
Chandran Ramakrishna1, Harry Openshaw, Edouard M Cantin
1Department of Virology, Beckman Research Institute of City of Hope; Duarte, CA 91010-3000, USA.
Herpes simplex virus encephalitis (HSE) outcomes remain poor. Host immune responses, not just the virus, contribute to brain damage, suggesting new immunomodulatory therapies could improve patient outcomes.
Area of Science:
- Neuroscience
- Immunology
- Infectious Diseases
Background:
- Herpes simplex virus encephalitis (HSE) is the most common sporadic viral encephalitis.
- Despite advances in antiviral therapy and diagnostics, mortality and neurological sequelae remain high.
Purpose of the Study:
- To review the role of host immune responses in HSE pathology.
- To explore the potential of immunomodulatory therapies for HSE treatment.
Main Methods:
- Review of experimental mouse models of HSE.
- Analysis of clinical reports on host inflammatory responses in HSE.
- Evaluation of immunomodulatory drug efficacy in HSE models.
Main Results:
- Exaggerated host inflammatory responses in the brain contribute to HSE development.
- Immunomodulatory drugs demonstrate protective effects in mouse models of HSE.
- Evidence supports a role for detrimental host inflammatory responses in HSE pathology.
Conclusions:
- Shifting focus to host immunity alongside antiviral treatment is crucial for improving HSE outcomes.
- Clinical trials are urgently needed to evaluate combination antiviral and immunomodulatory therapies for HSE.
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