Antiviral effect of matrine against human enterovirus 71

Area of Science:

• Virology
• Pharmacology
• Infectious Diseases

Background:

• Human enterovirus 71 (EV71) is a major cause of hand, foot, and mouth disease (HFMD) in young children.
• Large-scale outbreaks of EV71 have resulted in significant mortality, particularly in the Asia-Pacific region.
• Currently, no effective vaccine or antiviral therapy is available for EV71 infections.

Purpose of the Study:

• To evaluate the antiviral efficacy of matrine against enterovirus 71.
• To assess the potential of matrine as a therapeutic agent for EV71 infection both in vitro and in vivo.

Main Methods:

• In vitro antiviral activity was assessed by measuring the suppression of viral RNA copy number in rhabdomyosarcoma cells treated with matrine.
• In vivo efficacy was evaluated in a mouse model challenged with a lethal dose of EV71, assessing mortality rates and clinical symptoms.

Main Results:

• Matrine significantly suppressed the viral RNA copy number in infected rhabdomyosarcoma cells.
• Matrine treatment of mice infected with EV71 led to a reduction in mortality.
• Clinical symptoms in mice challenged with EV71 were relieved following matrine treatment.

Conclusions:

• Matrine demonstrates significant antiviral activity against enterovirus 71 in vitro.
• Matrine exhibits protective effects in vivo, reducing mortality and alleviating symptoms in a lethal EV71 mouse model.
• Matrine represents a promising potential therapeutic agent for enterovirus 71 infections.