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Molecular and antigenic characterization of bovine herpesvirus type 1 (BoHV-1) strains from cattle with diverse clinical cases in Turkey.

ABSTRACT: The present study reports the molecular and antigenic characterization of 13 bovine herpesvirus type 1 (BoHV-1) field viruses obtained from cattle with different clinical cases in Turkey between 1992 and 2017. We selected glycoprotein C (gC) of BoHV-1 as a target to detect and/or verify presence of the virus in suspect materials followed by virus isolation (VI) in MDBK cells. In seven out of 13 BoHV-1 positive samples, cytophatic effects (CPEs) were observed in MDBK cell cultures, although only four virus samples reached a sufficient titer to use in phylogenetic assay, restriction endonuclease analysis (REA), and virus neutralization test (VNT). According to the results of sequence analysis of the 13 BoHV-1 positive samples, nine BoHV-1 field viruses were determined as BoHV-1.1 and four as BoHV-1.2. Using REA, we demonstrated that two of our isolated viruses could be categorized as BoHV-1.1 while the other two isolates were BoHV-1.2 subtypes. Differences between the BoHV-1.1 and BoHV-1.2 isolates were also detected in the VNT results by assaying 125 suspected serum samples after testing with isolated (KY748023, KY748022, KY748020, and KY748021) and reference viruses (BoHV-1 Cooper and BoHV-5 Texas 89). These results are indicating the need to correctly identify BoHV-1 field isolates to better understand the epidemiology and pathogenesis of infection. In addition, it would be useful to identify the subtypes circulating in the specific geographical area while determining vaccination preferences.

SUBMITTER: Dagalp SB

PROVIDER: S-EPMC7223183 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Molecular and antigenic characterization of bovine herpesvirus type 1 (BoHV-1) strains from cattle with diverse clinical cases in Turkey.

Dagalp Seval Bilge SB Farzani Touraj Aligholipour TA Dogan Firat F Alkan Feray F Ozkul Aykut A

Tropical animal health and production 20190903 2

The present study reports the molecular and antigenic characterization of 13 bovine herpesvirus type 1 (BoHV-1) field viruses obtained from cattle with different clinical cases in Turkey between 1992 and 2017. We selected glycoprotein C (gC) of BoHV-1 as a target to detect and/or verify presence of the virus in suspect materials followed by virus isolation (VI) in MDBK cells. In seven out of 13 BoHV-1 positive samples, cytophatic effects (CPEs) were observed in MDBK cell cultures, although only ...[more]

PMID: 31482481

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Project description:Bovine herpesvirus 4 (BoHV-4) is increasingly considered as responsible for various problems of the reproductive tract. The virus infects mainly blood mononuclear cells and displays specific tropism for vascular endothelia, reproductive and fetal tissues. Epidemiological studies suggest its impact on reproductive performance, and its presence in various sites in the reproductive tract highlights its potential transmission in transfer-stage embryos. This work describes the biological and genetic characterization of BoHV-4 strains isolated from an in vitro bovine embryo production system. BoHV-4 strains were isolated in 2011 and 2013 from granulosa cells and bovine oocytes from ovary batches collected at a local abattoir, used as "starting material" for in vitro production of bovine embryos. Compatible BoHV-4-CPE was observed in the co-culture of granulosa cells and oocytes with MDBK cells. The identity of the isolates was confirmed by PCR assays targeting three ORFs of the viral genome. The phylogenetic analyses of the strains suggest that they were evolutionary unlinked. Therefore it is possible that BoHV-4 ovary infections occurred regularly along the evolution of the virus, at least in Argentina, which can have implications in the systems of in vitro embryo production. Thus, although BoHV-4 does not appear to be a frequent risk factor for in vitro embryo production, data are still limited. This study reveals the potential of BoHV-4 transmission via embryo transfer. Moreover, the high variability among the BoHV-4 strains isolated from aborted cows in Argentina highlights the importance of further research on the role of this virus as an agent with the potential to cause reproductive disease in cattle. The genetic characterization of the isolated strains provides data to better understand the pathogenesis of BoHV-4 infections. Furthermore, it will lead to fundamental insights into the molecular aspects of the virus and the means by which these strains circulate in the herds.

Dataset Information

Molecular and antigenic characterization of bovine herpesvirus type 1 (BoHV-1) strains from cattle with diverse clinical cases in Turkey.

Publications

Molecular and antigenic characterization of bovine herpesvirus type 1 (BoHV-1) strains from cattle with diverse clinical cases in Turkey.

Similar Datasets

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