Antiviral Activity of Technologically Processed Antibodies to CD4 Receptor against Influenza Infection

N V Petrova1,2, A G Emelyanova3,4, S A Tarasov3,4

  • 1Research Institute of General Pathology and Pathophysiology, Moscow, Russia. nataliyaapetrova89@gmail.com.

The antiviral activity of technologically processed antibodies to CD4 receptor was evaluated a model of sublethal A/California/04/2009 (H1N1)pdm09-induced influenza infection in female BALB/c mice. The technologically processed antibodies increased animal survival rate by 50% in comparison with the placebo group (p<0.05), which correlated with significant inhibition of virus replication in the lungs (p<0.05). The reference drug Tamiflu increased mouse survival rate (by 47%), decreased the virus titer in the lungs, and prevented body weight loss (p<0.05 in comparison with the placebo group by all parameters). The intrinsic protective activity of technologically processed antibodies to CD4 receptor was demonstrated, which manifested in a decrease in viral load in the lower respiratory tract and an increase in the survival rate.