Primary simian varicella virus (SVV) infection and reactivation in nonhuman primates is a valuable animal model in the study of varicella zoster virus disease [varicella (chickenpox) and herpes zoster (shingles)]. To understand SVV pathogenesis in skin, we inoculated 10 rhesus macaques with SVV, resulting in varicella rash. After the establishment of latency, eight of the monkeys were immunosuppressed using tacrolimus with or without irradiation and prednisone and two monkeys were not immunosuppressed. Zoster rash developed in all immunosuppressed monkeys and in one non-immunosuppressed monkey. Five monkeys had recurrent zoster. During varicella and zoster, SVV DNA in skin scrapings ranged from 50 to 107 copies/100 ng of total DNA and 2–127 copies/100 ng of total DNA, respectively. Detection of SVV DNA in blood during varicella was more frequent and abundant compared to that of zoster. During varicella and zoster, SVV antigens colocalized with neurons expressing β-III tubulin in epidermis, hair follicles, and sweat glands, suggesting axonal transport of the virus. Together, we have demonstrated that both SVV DNA and antigens can be detected in skin lesions during varicella and zoster, providing the basis for further studies on SVV skin pathogenesis, including immune responses and mechanisms of peripheral spread.
Simian Varicella Virus Pathogenesis in Skin during Varicella and Zoster
R. Mahalingam,Brittany Feia,C. Coleman,Kusala Anupindi,P. Saravanan,Amalia Luthens,Amalia Bustillos,A. Das,Eileen de Haro,Lara Doyle-Meyers,J. Looper,Andrew N Bubak,Christy S. Niemeyer,B. Palmer,M. Nagel,V. Traina-Dorge
Published 2022 in Viruses
ABSTRACT
PUBLICATION RECORD
- Publication year
2022
- Venue
Viruses
- Publication date
2022-05-27
- Fields of study
Biology, Medicine
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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