NDLI: Immunological Mechanisms Mediating Hantavirus Persistence in Rodent Reservoirs

Content Provider	PubMed Central
Author	Easterbrook, Judith D. Klein, Sabra L.
Editor	Buchmeier, Michael J.
Copyright Year	2008
Abstract	Hantaviruses, similar to several emerging zoonotic viruses, persistently infect their natural reservoir hosts, without causing overt signs of disease. Spillover to incidental human hosts results in morbidity and mortality mediated by excessive proinflammatory and cellular immune responses. The mechanisms mediating the persistence of hantaviruses and the absence of clinical symptoms in rodent reservoirs are only starting to be uncovered. Recent studies indicate that during hantavirus infection, proinflammatory and antiviral responses are reduced and regulatory responses are elevated at sites of increased virus replication in rodents. The recent discovery of structural and non-structural proteins that suppress type I interferon responses in humans suggests that immune responses in rodent hosts could be mediated directly by the virus. Alternatively, several host factors, including sex steroids, glucocorticoids, and genetic factors, are reported to alter host susceptibility and may contribute to persistence of hantaviruses in rodents. Humans and reservoir hosts differ in infection outcomes and in immune responses to hantavirus infection; thus, understanding the mechanisms mediating viral persistence and the absence of disease in rodents may provide insight into the prevention and treatment of disease in humans. Consideration of the coevolutionary mechanisms mediating hantaviral persistence and rodent host survival is providing insight into the mechanisms by which zoonotic viruses have remained in the environment for millions of years and continue to be transmitted to humans.
Related Links	http://dx.doi.org/10.1371/journal.ppat.1000172
Starting Page	1000172
File Format	PDF
ISSN	15537374
e-ISSN	15537374
Journal	PLoS Pathogens
Issue Number	11
Volume Number	4
Language	English
Publisher	Public Library of Science
Publisher Date	2008-11-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Immunology Genetics Molecular Biology Microbiology Parasitology Virology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Genetics Virology Molecular Biology Parasitology Immunology Microbiology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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