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Zhu B, Zhu Z, Wang J, Huang S, Li F, Wang L, Liu Y, Yan Q, Zhou S, Lu M, Yang D, Wang B. Chinese woodchucks with different susceptibility to WHV infection differ in their genetic background exemplified by cytochrome B and MHC-DRB molecules. Virol J 2018; 15:101. [PMID: 29914514 PMCID: PMC6006932 DOI: 10.1186/s12985-018-1010-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 06/03/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Chinese woodchucks (M. himalayana) were recently found to be susceptible to woodchuck hepatitis virus (WHV) infection. In this study, we aimed to determine the susceptibility to WHV infection of M. himalayana from different areas and their association with the animal genetic background exemplified by cytochrome B and MHC-DRB molecules. METHODS Animals from four different areas in Qinghai province were inoculated with WHV59 strains. The virological markers including WHV surface antigen (WHsAg), WHV core antibody (WHcAb), and WHV DNA in serum were measured by ELISA and Real-time PCR, respectively. The sequences of cytochrome B gene and MHC-DRB molecules were obtained and sorted with Clustalx software. The nucleotide variation sites were identified using MEGA5 software. RESULTS The animals from four different areas had different susceptibility to WHV infection. Animals from TR and TD areas had a high level of long-lasting viremia, while those from GD and WL areas had a low level of transient viremia after WHV inoculation. All of the animals belong to the same subspecies M. himalayana robusta identified by cytochrome B gene sequences. Based on their nucleotide variation pattern, 8 alleles of cytochrome B gene were identified, and 7 MHC-DRB alleles were identified. Allele A of cytochrome B and Allele Mamo-DRB1*02 of MHC-DRB was found to be frequent in animals from TR and TD areas, while Allele H of cytochrome B and Allele Mamo-DRB1*07 of MHC-DRB was predominant in animals from GD and WL areas. CONCLUSION Chinese woodchucks from different areas differed in their susceptibility to WHV infection, though they belong to the same subspecies M. himalayana robusta. The genetic background exemplified by cytochrome B and MHC-DRB differed in Chinese woodchucks with different susceptibility to WHV infection.
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Affiliation(s)
- Bin Zhu
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China
| | - Zhenni Zhu
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China.,Department of Pediatrics, Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), Wuhan, China
| | - Junzhong Wang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China
| | - Shunmei Huang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China
| | - Fanghui Li
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China
| | - Lu Wang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China
| | - Yanan Liu
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China
| | - Qi Yan
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China
| | - Shunchang Zhou
- Laboratory Animal Center, Huazhong University of Science and Technology, Wuhan, China
| | - Mengji Lu
- Institute of Virology, University of Duisburg-Essen, Essen, Germany
| | - Dongliang Yang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China
| | - Baoju Wang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Avenue, Wuhan, 430022, China.
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