PMID- 32647124 OWN - NLM STAT- MEDLINE DCOM- 20201231 LR - 20210709 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 10 IP - 1 DP - 2020 Jul 9 TI - In vivo characterization of target cells for acute elephant endotheliotropic herpesvirus (EEHV) infection in Asian elephants (Elephas maximus). PG - 11402 LID - 10.1038/s41598-020-68413-4 [doi] LID - 11402 AB - Elephant endotheliotropic herpesvirus-hemorrhagic disease (EEHV-HD) is a dangerous viral infectious disease in young Asian elephants. Despite hypotheses underlying pathogenesis of the disease, it is unclear which cell types the virus targets during acute or persistent infections. This study investigated the tissues and target cells permissive for EEHV infection and replication in vivo. Rabbit polyclonal antibodies against the non-structural proteins of EEHV, DNA polymerase (EEHV DNAPol), were generated and validated. These were used to examine EEHV infection and replication in various tissues of acute EEHV-HD cases and compared to an EEHV-negative control. The results indicated that viral antigens were distributed throughout the epithelia of the alimentary tract and salivary glands, endothelia and smooth muscle cells, and monocytic lineage cells of the EEHV-infected elephants. Moreover, EEHV DNAPol proteins were also found in the bone marrow cells of the EEHV1A-HD and EEHV1A/4-HD cases. This study demonstrated for the first time the target cells that favor in vivo EEHV replication during acute infection, providing a promising foundation for investigating EEHV propagation in vitro. FAU - Guntawang, Thunyamas AU - Guntawang T AD - Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. FAU - Sittisak, Tidaratt AU - Sittisak T AD - Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. FAU - Srivorakul, Saralee AU - Srivorakul S AD - Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. AD - Veterinary Diagnostic Laboratory, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. FAU - Kochagul, Varankpicha AU - Kochagul V AD - Veterinary Diagnostic Laboratory, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. FAU - Photichai, Kornravee AU - Photichai K AD - Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. AD - Veterinary Diagnostic Laboratory, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. FAU - Thitaram, Chatchote AU - Thitaram C AD - Center of Excellence in Elephant and Wildlife Research, Chiang Mai University, Chiang Mai, 50100, Thailand. AD - Department of Companion Animals and Wildlife Clinics, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. FAU - Sthitmatee, Nattawooti AU - Sthitmatee N AD - Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. FAU - Hsu, Wei-Li AU - Hsu WL AD - Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung, 402, Taiwan. FAU - Pringproa, Kidsadagon AU - Pringproa K AD - Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand. kidsadagon.p@cmu.ac.th. AD - Center of Excellence in Elephant and Wildlife Research, Chiang Mai University, Chiang Mai, 50100, Thailand. kidsadagon.p@cmu.ac.th. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200709 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Antigens, Viral) RN - 0 (Recombinant Proteins) RN - 0 (Viral Proteins) RN - EC 2.7.7.7 (DNA-Directed DNA Polymerase) SB - IM MH - Animals MH - Antigens, Viral/analysis MH - Bone Marrow Cells/virology MH - DNA-Directed DNA Polymerase/analysis/chemistry MH - Digestive System/virology MH - Elephants/*virology MH - Endothelial Cells/virology MH - Female MH - Heart/virology MH - Hemorrhagic Disorders/*veterinary/virology MH - Herpesviridae/immunology/*isolation & purification/physiology MH - Herpesviridae Infections/*veterinary/virology MH - Lymph Nodes/virology MH - Male MH - Models, Molecular MH - Monocytes/virology MH - Myocytes, Smooth Muscle/virology MH - Nervous System/virology MH - Organ Specificity MH - Protein Conformation MH - Recombinant Proteins/chemistry MH - Salivary Glands/virology MH - Viral Proteins/analysis MH - *Viral Tropism PMC - PMC7347588 COIS- The authors declare no competing interests. EDAT- 2020/07/11 06:00 MHDA- 2021/01/01 06:00 PMCR- 2020/07/09 CRDT- 2020/07/11 06:00 PHST- 2020/03/20 00:00 [received] PHST- 2020/06/24 00:00 [accepted] PHST- 2020/07/11 06:00 [entrez] PHST- 2020/07/11 06:00 [pubmed] PHST- 2021/01/01 06:00 [medline] PHST- 2020/07/09 00:00 [pmc-release] AID - 10.1038/s41598-020-68413-4 [pii] AID - 68413 [pii] AID - 10.1038/s41598-020-68413-4 [doi] PST - epublish SO - Sci Rep. 2020 Jul 9;10(1):11402. doi: 10.1038/s41598-020-68413-4.