Experimental infection of foot and mouth disease virus (FMDV) upregulates the expression of Coxsackie and adenovirus receptor (CAR) in the myocardium of suckling mice

被引：0
|
作者：
Priyanka, Mahadappa [1 ]
Ranjitha, H. B. [1 ]
Karikalan, M. [2 ]
Chandramohan, S. [1 ]
Behera, Subhasmitha [1 ]
Gnanavel, V. [1 ]
Periyasamy, Tamil Selvan Ramasamy [1 ]
Umapathi, V. [1 ]
Dechamma, H. J. [1 ]
Krishnaswamy, Narayanan [1 ]
机构：
[1] ICAR Indian Vet Res Inst, Reg Campus, Bengaluru 24, Karnataka, India
[2] Deemed Univ, ICAR Indian Vet Res Inst, Ctr Wildlife Conservat Management & Dis Surveillan, Bareilly 243122, India
来源：
MICROBIAL PATHOGENESIS | 2023年 / 184卷
关键词：
Coxsackie and adenoviral receptor; Foot and mouth disease virus; Myocarditis; DILATED CARDIOMYOPATHY; B VIRUSES; PCR; PATHOGENESIS; STRAINS; DEATH;
D O I：
10.1016/j.micpath.2023.106383
中图分类号：
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号：
100102 ;
摘要：
The relative overexpression of Coxsackie and adenoviral receptor (CAR) predisposes children to viral myocarditis. As the foot and mouth disease virus (FMDV) causes fatal myocarditis in calves, lambs, and piglets and belongs to the same family as the Coxsackie virus, we investigated the role of CAR in FMDV induced myocarditis in the suckling mice model. Swiss albino suckling mice of 5 days (n = 24) were divided into two equal groups. One group was inoculated with suckling mice adapted FMDV serotype O at 10 LD50, while the other group served as uninfected control. In addition, adult mice (n = 12) served as the control for age related CAR expression and lack of pathogenicity to FMDV. The establishment of myocarditis was confirmed by histopathological changes typical of myocarditis along with immunolocalization of FMDV antigens in the heart of suckling mice. The FMDV inoculated suckling mice group showed a significant upregulation of CAR transcripts by 2.5 folds, overexpression of CAR protein by densitometric analysis of immunoblots, and intense immunolocalization of CAR in the sarcolemma and intercalated discs of cardiomyocytes as compared to the uninfected suckling mice group and adult mice. It was concluded that FMDV infection induced overexpression of CAR in the myocardium of suckling mice.
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页数：7
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