NDLI: Acyclovir Therapy Reduces the CD4+ T Cell Response against the Immunodominant pp65 Protein from Cytomegalovirus in Immune Competent Individuals

Content Provider	PubMed Central
Author	Annette, Pachnio Begum, Jusnara Fox, Ashini Moss, Paul
Editor	Nevels, Michael
Copyright Year	2015
Abstract	Cytomegalovirus (CMV) infects the majority of the global population and leads to the development of a strong virus-specific immune response. The CMV-specific CD4+ and CD8+ T cell immune response can comprise between 10 and 50% of the T cell pool within peripheral blood and there is concern that this may impair immunity to other pathogens. Elderly individuals with the highest magnitude of CMV-specific immune response have been demonstrated to be at increased risk of mortality and there is increasing interest in interventions that may serve to moderate this. Acyclovir is an anti-viral drug with activity against a range of herpes viruses and is used as long term treatment to suppress reactivation of herpes simplex virus. We studied the immune response to CMV in patients who were taking acyclovir to assess if therapy could be used to suppress the CMV-specific immune response. The T cell reactivity against the immunodominant late viral protein pp65 was reduced by 53% in people who were taking acyclovir. This effect was seen within one year of therapy and was observed primarily within the CD4+ response. Acyclovir treatment only modestly influenced the immune response to the IE-1 target protein. These data show that low dose acyclovir treatment has the potential to modulate components of the T cell response to CMV antigen proteins and indicate that anti-viral drugs should be further investigated as a means to reduce the magnitude of CMV-specific immune response and potentially improve overall immune function.
Related Links	http://dx.doi.org/10.1371/journal.pone.0125287
Starting Page	125287
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	4
Volume Number	10
Language	English
Publisher	Public Library of Science
Publisher Date	2015-04-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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