Figure 4.
Poly(I) reduces uptake of MV particles by the liver and spleen, enhancing bioavailability of MV in the blood of mice. CD46-negative and CD46-positive mice were injected intravenously with PBS or 0.2 mg poly(I) per mouse 5 min prior to administration of 106 TCID50 DiI-MV-Luc. (a) Numbers of red fluorescent cells (due to uptake of DiI-MV) in liver and spleen cryosection were counted (pixels) using the Image J software. Data is presented as a percentage of that in mice given MV only. Blood from (b) CD46-negative or (c) CD46-positive mice were collected at 2, 5, 10 and 30 min after MV injection and analyzed for infectious virus by TCID50 assay. Results are expressed as mean ± SD (n=3 mice). *indicate statistically different (p<0.05) against no poly(I).