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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.6
- 수록면
- 72 - 81 (10page)
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초록· 키워드
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Canine distemper virus (CDV) infections cause high morbidity and mortality in dogs. Changes in the molecular biological characteristics of the Korean CDV strain over multiple cell passages have not been reported. We investigated the biological and genetic characteristics of CD1901-100 for use as an inactivated vaccine strain. Vero cells expressing the dog nectin-4 gene (Vero/dNectin-4 cells) were used to adapt CD1901, which was passaged 100 times in four types of cells. We assessed the cytopathic effects and used immunofluorescence assays to identify biological features of CD1901 and CD1901-100. Seven types of cells were used to explore the tropisms of the two CDV strains. The genetic analyses were based on whole-genome sequencing data. Vero cells expressing dog signaling lymphocyte activation molecule were infected with the two CDV strains and showed different cytopathic effects and fluorescence properties. CD1901-100 attained the highest viral titer of 10<SUP>6.5</SUP> TCID<SUB>50</SUB>/mL at 4 days post-inoculation; the overall highest virus titer of 10<SUP>7.0</SUP> TCID<SUB>50</SUB>/mL was that after growth in Vero/dNectin-4 cells. CD1901-100 exhibited 25 nucleotide mutations and 15 amino acid substitutions in six structural proteins compared to the CD1901 sequences. Of the six proteins, the F protein had the highest number of amino acid replacements (5/663, 0.75%). We constructed a Vero/dNectin-4 cell line and passaged CD1901 100 times in four types of cells. CD1901-100 propagated well in Vero/dNectin-4 cells. This will aid the development of an inactivated CDV vaccine.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2022-475-001518773