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Antiviral Research-Volume 83, Issue 2, August 2009

A biotechnological product and its potential as a new immunomodulator for treatment of animal phlebovirus infection: Punta Toro virus



Antiviral Research
Volume 83, Issue 2, August 2009, Pages 143-147

Abstract :


Intracellular pathogens with widespread drug-resistance contribute substantially to the increasing rates in morbidity and mortality due to emerging and reemerging diseases. Thus, the development of new drugs, including those that can enhance the immune response, is urgently needed. The immunomodulator, P-MAPA, a proteinaceous aggregate of ammonium and magnesium phospholinoleate-palmitoleate anhydride derived from Aspergillus oryzae, have been shown to induce antitumor activities. The ability of this compound to elicit protective immunity against viral infections has not been fully explored. Here, we report findings on the use of P-MAPA as an antiviral agent in a mouse model of acute phleboviral (Punta Toro virus) disease. A dose administered i.p. 24 h post-infectious challenge (100 mg/kg dose of P-MAPA) was remarkably effective at preventing death due to Punta Toro virus infection. This dose also reduced systemic viral burden and liver discoloration assayed on day 3 of infection. Taken together, our findings indicate that non-specific immunotherapy with P-MAPA appears to be an effective treatment for blocking Punta Toro virus-induced disease and suggest that further exploration with other viral disease models is warranted.


Keywords: Immunomodulator; Virus; Punta Toro virus; P-MAPA

Received 14 October 2008; 

revised 8 April 2009; 
accepted 9 April 2009. 
Available online 22 April 2009.




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** Single Dose Therapeutic Treatment of Phlebovirus (Punta Toro Virus )Infection in Mice with P-MAPA




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