scholarly journals Effect of Foot-and-Mouth Disease Vaccination on Acute Phase Immune Response and Anovulation in Hanwoo (Bos taurus coreanae)

Vaccines ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 419
Author(s):  
Daehyun Kim ◽  
Joonho Moon ◽  
Jaejung Ha ◽  
Doyoon Kim ◽  
Junkoo Yi

Vaccination against foot-and-mouth disease is the most common method for preventing the spread of the disease; the negative effects include miscarriage, early embryo death, lower milk production, and decreased growth of fattening cattle. Therefore, in this study, we analyze the side effects of vaccination by determining the acute immune response and ovulation rate after vaccinating cows for foot-and-mouth disease. The test axis was synchronized with ovulation using 100 Hanwoo (Bos taurus coreanae) cows from the Gyeongsangbuk-do Livestock Research Institute; only individuals with estrus confirmed by ovarian ultrasound were used for the test. All test axes were artificially inseminated 21 days after the previous estrus date. The control group was administered 0.9% normal saline, the negative control was injected intramuscularly with lipopolysaccharide (LPS; 0.5 µg/kg), and the test group was administered a foot-and-mouth disease virus vaccine (FMDV vaccine; bioaftogen, O and A serotypes, inactivated vaccine) 2, 9, and 16 days before artificial insemination. White blood cells and neutrophils increased significantly 1 day after vaccination, and body temperature in the rumen increased for 16 h after vaccination. Ovulation was detected 1 day after artificial fertilization by ovarian ultrasound. The ovulation rates were as follows: control 89%, LPS 60%, FMDV vaccine (−2 d) 50%, FMDV vaccine (−9 d) 75%, and FMDV vaccine (−16 d) 75%. In particular, the FMDV vaccine (−2 d) test group confirmed that ovulation was delayed for 4 days after artificial insemination. In addition, it was confirmed that it took 9 days after inoculation for the plasma contents of haptoglobin and serum amyloid A to recover to the normal range as the main acute immune response factors. The conception rate of the FMDV vaccine (−2 d) group was 20%, which was significantly lower than that of the other test groups.

Viruses ◽  
2015 ◽  
Vol 7 (7) ◽  
pp. 3954-3973 ◽  
Author(s):  
Belén Borrego ◽  
Miguel Rodríguez-Pulido ◽  
Concepción Revilla ◽  
Belén Álvarez ◽  
Francisco Sobrino ◽  
...  

2006 ◽  
Vol 80 (5) ◽  
pp. 2369-2379 ◽  
Author(s):  
Fayna Díaz-San Segundo ◽  
Francisco J. Salguero ◽  
Ana de Avila ◽  
M. Mar Fernández de Marco ◽  
Miguel A. Sánchez-Martín ◽  
...  

ABSTRACT Foot-and-mouth disease virus (FMDV) is the causative agent of a highly contagious vesicular disease of cloven-hoofed animals. In the present study we use FMDV serotype C infection of swine to determine, by analytical techniques, the direct ex vivo visualization of virus-infected immune cells during the first 17 days of infection. We report, for the first time, that FMDV C-S8c1 can infect T and B cells at short periods of time postinoculation, corresponding with the peak of the viremia. There is a significant lymphopenia that involves CD3+ CD4− CD8+/−, CD3+ CD4− CD8+Tc, and CD3+ CD4+ CD8+ memory Th but not CD3+ CD4+ CD8− naïve Th lymphocytes. In addition, a profound depletion of the vast majority of peripheral T cells in lymph nodes and spleen is observed. This selective depletion of T cells is not due mainly to in situ death via apoptosis as visualized by the terminal deoxynucleotidyltransferase-mediated dUTP-biotin nick end labeling (TUNEL) technique. Thus, early infection of T cells by FMDV may be the main cause of the observed T-cell depletion. Importantly, this lack of T cells is reflected in a reduced response to mitogen activation, which in many cases is totally eliminated. These data suggest a mechanism by which the virus causes a transient immunosuppression, subvert the immune systems, and spreads. These results have important implications for our understanding of early events in the development of a robust immune response against FMDV.


Vaccine ◽  
1995 ◽  
Vol 13 (10) ◽  
pp. 909-914 ◽  
Author(s):  
E.J.A. Späth ◽  
E. Smitsaart ◽  
A.P.E. Casaro ◽  
N. Fondevila ◽  
F. Fernández ◽  
...  

2012 ◽  
Vol 19 (4) ◽  
pp. 461-467 ◽  
Author(s):  
Steven M. Szczepanek ◽  
Roger W. Barrette ◽  
Debra Rood ◽  
Diana Alejo ◽  
Lawrence K. Silbart

ABSTRACTMany RNA viruses encode error-prone polymerases which introduce mutations into B and T cell epitopes, providing a mechanism for immunological escape. When regions of hypervariability are found within immunodominant epitopes with no known function, they are referred to as “decoy epitopes,” which often deceptively imprint the host's immune response. In this work, a decoy epitope was identified in the foot-and-mouth disease virus (FMDV) serotype O VP1 G-H loop after multiple sequence alignment of 118 isolates. A series of chimeric cyclic peptides resembling the type O G-H loop were prepared, each bearing a defined “B cell xenoepitope” from another virus in place of the native decoy epitope. These sequences were derived from porcine respiratory and reproductive syndrome virus (PRRSV), from HIV, or from a presumptively tolerogenic sequence from murine albumin and were subsequently used as immunogens in BALB/c mice. Cross-reactive antibody responses against all peptides were compared to a wild-type peptide and ovalbumin (OVA). A broadened antibody response was generated in animals inoculated with the PRRSV chimeric peptide, in which virus binding of serum antibodies was also observed. A B cell epitope mapping experiment did not reveal recognition of any contiguous linear epitopes, raising the possibility that the refocused response was directed to a conformational epitope. Taken together, these results indicate that xenoepitope substitution is a novel method for immune refocusing against decoy epitopes of RNA viruses such as FMDV as part of the rational design of next-generation vaccines.


1991 ◽  
Vol 72 (7) ◽  
pp. 1691-1694 ◽  
Author(s):  
P. G. Piatti ◽  
A. Berinstein ◽  
O. J. Lopez ◽  
M. V. Borca ◽  
F. Fernandez ◽  
...  

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