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  • Title: Effects of CpG ODN on CD4+ and CD8+ T subpopulations in the immune response to porcine reproductive and respiratory syndrome killed virus vaccine.
    Author: Linghua Z, Xingshan T, Yong G, Fengzhen Z.
    Journal: Vaccine; 2006 Mar 10; 24(11):1874-9. PubMed ID: 16289506.
    Abstract:
    CpG ODN is a noval immunostimulatory reagent In this research, the effects of immunostimulatory CpG oligodeoxynucleotides (CpG ODN) on CD4+ and CD8+ T lymphocytes subpopulations in the newborn piglets blood were tested at different time with porcine reproductive and respiratory syndrome killed virus vaccine (PRRS vaccine) with or without CpG ODN. The results suggested that, the CD4+/CD8+ ratio decreased with age in piglets inoculated with vaccine alone or GpC ODN with vaccine or phosphate buffer saline (PBS), however, it was stable in piglets co-inoculated with CpG ODN and PRRS vaccine (p>0.05), the use of CpG ODN can prevent effectively the reduction of the proportion of CD4+ T lymphocytes. High titers of PRRS specific antibody can also be tested in the newborn piglets serum immunized PRRS vaccine and CpG ODN (p<0.05).
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