Method for inhibition of viral infection

Abstract

The invention is directed to inhibiting viral morphogenesis and viral infection. In particular, it concerns effecting such inhibition by inhibiting the prenylation or post prenylation reactions of a viral or host protein.

1 . A method to treat a viral infection in a subject via inhibiting the prenylation or a post-prenylation reaction of a protein contained in the virus infecting said subject, which method comprises administering to said subject an effective amount of an agent selected from the group consisting of
 a peptide that mimics the amino acid sequence of a “CXXX” (SEQ ID NO:1), ”XCXX” (SEQ ID NO:3), “XXCX” (SEQ ID NO:4), or “XXXC” (SEQ ID NO:5) box as it occurs in said viral protein,   an inhibitor of a prenyl transferase,   an inhibitor of an enzyme included in the pathway of a prenyl lipid synthesis from mevalonate,   a mimic of a prenyl group,   an inhibitor of a protease that removes the XXX tripeptide from the CXXX polypeptide following prenylation, a protease that removes the XX dipeptide from the XCXX polypeptide following prenylation, or a protease that removes the X residue from the XXCX polypeptide following prenylation, or a protease that removes a C-terminal domain of the prenylated protein including the entire CXXX box,   an inhibitor of prenyl cysteine methyltransferase, and   a combination thereof.   
     
     
         2 . The method of  claim 1 , wherein said agent is an inhibitor of an enzyme along the pathway of prenyl lipid synthesis from mevalonate. 
     
     
         3 . The method of  claim 1 , wherein said agent is a mimic of a prenyl group. 
     
     
         4 . The method of  claim 1 , wherein said agent is an inhibitor of a protease that removes the XXX tripeptide from the CXXX polypeptide following prenylation, a protease that removes the XX dipeptide from the XCXX polypeptide following prenylation, or a protease that removes the X residue from the XXCX polypeptide following prenylation or a protease that removes a C-terminal domain of the prenylated protein including the entire CXXX box. 
     
     
         5 . The method of  claim 1 , wherein said agent is an inhibitor of prenyl cysteine methyltransferase. 
     
     
         6 . The method of  claim 1 , wherein said subject is an animal or a plant. 
     
     
         7 . The method of  claim 1 , wherein said animal is a mammal. 
     
     
         8 . The method of  claim 7 , wherein said mammal is a human. 
     
     
         9 . The method of  claim 7 , wherein said mammal is a non-human primate. 
     
     
         10 . The method of  claim 1 , wherein said viral infection is caused by a virus selected from the group consisting of a double-strand DNA virus, a negative single-strand RNA virus, a positive single-strand RNA virus and a double-strand RNA virus. 
     
     
         11 . The method of  claim 10 , wherein said double-strand DNA virus is selected from the group consisting of a poxviridae, a herpesviridae and a papillomaviridiae. 
     
     
         12 . The method of  claim 10 , wherein said negative single-strand RNA virus is a bunyaviridiae. 
     
     
         13 . The method of  claim 10 , wherein said positive single-strand RNA virus is a hepatovirus. 
     
     
         14 . The method of  claim 10 , wherein said double-strand RNA virus is a reoviridiae. 
     
     
         15 . The method of  claim 1 , wherein said viral infection is caused by a virus selected from the group consisting of a pox virus, a bunyavirus, hepatitis E virus, human papilloma virus, molluscum contagiosum virus, vaccinia virus and reovirus. 
     
     
         16 . The method of  claim 15 , wherein said pox virus is smallpox virus. 
     
     
         17 . The method of  claim 15 , wherein said bunyavirus is oropouche virus. 
     
     
         18 . The method of  claim 1 , wherein said agent is administered with a pharmaceutically acceptable carrier or excipient. 
     
     
         19 . A kit to treat a viral infection in a subject via inhibiting the prenylation or a post-prenylation reaction of a protein contained in the virus infecting said subject, which kit comprises:
 a) an effective amount of an agent selected from the group consisting of   a peptide that mimics the amino acid sequence of a “CXXX” (SEQ ID NO:1), “XCXX” (SEQ ID NO:3), “XXCX” (SEQ ID NO:4), or “XXXC” (SEQ ID NO:5) box as it occurs in said viral protein,   an inhibitor of a prenyl transferase,   an inhibitor of an enzyme included in the pathway of a prenyl lipid synthesis from mevalonate,   a mimic of a prenyl group,   an inhibitor of a protease that removes the XXX tripeptide from the CXXX polypeptide following prenylation, a protease that removes the XX dipeptide from the XCXX polypeptide following prenylation, or a protease that removes the X residue from the XXCX polypeptide following prenylation, or a protease that removes a C-terminal domain of the prenylated protein including the entire CXXX box,   an inhibitor of prenyl cysteine methyltransferase, and   a combination thereof; and   b) an instruction for using said agent in treating said viral infection in said subject.   
     
     
         20 . A method to treat a viral infection in a subject via inhibiting the prenylation or a post-prenylation reaction of a host protein involved in life cycle of said infecting virus, which method comprises administering to said subject an effective amount of an agent selected from the group consisting of
 a peptide that mimics the amino acid sequence of a “CXXX” (SEQ ID NO:1), “XCXX” (SEQ ID NO:3), “XXCX” (SEQ ID NO:4), or “XXXC” (SEQ ID NO:5) box as it occurs in said viral protein,   an inhibitor of a prenyl transferase,   an inhibitor of an enzyme included in the pathway of a prenyl lipid synthesis from mevalonate,   a mimic of a prenyl group,   an inhibitor of a protease that removes the XXX tripeptide from the CXXX polypeptide following prenylation, a protease that removes the XX dipeptide from the XCXX polypeptide following prenylation, or a protease that removes the X residue from the XXCX polypeptide following prenylation, or a protease that removes a C-terminal domain of the prenylated protein including the entire CXXX box,   an inhibitor of prenyl cysteine methyltransferase, and   a combination thereof.