Inhibition of Cyclooxygenase Activity Reduces Rotavirus Infection at a Postbinding Step

Inhibition of cyclooxygenase activity reduces rotavirus infection at a postbinding step.

Elevated levels of prostaglandins (PGs), products of cyclooxygenases (COXs), are found in the plasma and stool of rotavirus-infected children. We sought to determine the role of COXs, PGs, and the signal transduction pathways involved in rotavirus infection to elucidate possible new targets for antiviral therapy. Human intestinal Caco-2 cells were infected with human rotavirus Wa or simian rota...

Beta-chemokine inhibition of monocytotropic HIV-1 infection. Interference with a postbinding fusion step.

The beta-chemokines RANTES, MIP-1 alpha, and MIP-1 beta have potent suppressive effects on HIV-1 infection resulting from an early postbinding block in virus fusion and entry. Inhibition was observed only with monocytotropic isolates and mapped to the V3 region of the HIV-1 envelope. RANTES did not inhibit virus expression in chronically infected cells or reduce initial virus attachment to the ...

Epidemiology of Rotavirus Infection in Certain Countries

Abstract Acute diarrhea with severe dehydration has been a major worldwide cause of death in children younger than 5 years of age. Etiological studies of gastroenteritis have shown that rotavirus causes 40–50% of acute diarrhea among infants and children in both developing and developed nations. Numerous epidemiologic studies in the US and the World Health Organization have docu...

REOVIRUS GROWTH INHIBITION BY ROTAVIRUS FOLLOWING COINFECTION

The tight junction-associated protein occludin is required for a postbinding step in hepatitis C virus entry and infection.

The precise mechanisms regulating hepatitis C virus (HCV) entry into hepatic cells remain unknown. However, several cell surface proteins have been identified as entry factors for this virus. Of these molecules, claudin-1, a tight junction (TJ) component, is considered a coreceptor required for HCV entry. Recently, we have demonstrated that HCV envelope glycoproteins (HCVgp) promote structural ...