Inhibition of hepatitis b replication

A - Human Necessities – 61 – K

Patent

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Details

A61K 38/16 (2006.01) A61K 31/70 (2006.01) A61K 48/00 (2006.01) C07K 14/02 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2224477

The invention features a method of inhibiting the replication of a naturally- occurring hepadnavirus, e.g., hepatitis B virus (HBV), by introducing into proximity with the hepadnavirus a nucleic acid that encodes a hepadnavirus mutant polypeptide. The polypeptide includes a first amino acid sequence that is substantially identical to a corresponding region of a wild type hepadnavirus core protein, and either lacks a second amino acid sequence of the wild type hepadnavirus core protein, the second sequence including the carboxyterminal three amino acids of the wild type hepadnavirus core protein, and/or is joined by a peptide bond to the aminoterminal amino acid of an amino acid sequence that is substantially identical to a corresponding portion of a wild type hepadnavirus surface protein, the aminoterminal amino acid of the surface protein being joined by a peptide bond to the carboxyterminal amino acid of the core protein sequence.

L'invention concerne un procédé servant à inhiber la réplication d'un hépadnavirus naturel, par exemple, le virus de l'hépatite B (HBV), par introduction à proximité de l'hépadnavirus d'un acide nucléique codant un polypeptide mutant d'hépadnavirus. Ce polypeptide comprend une première séquence d'acides aminés sensiblement identique à une région correspondante d'une protéine noyau d'hépadnavirus de type sauvage et dérivée d'une deuxième séquence d'acides aminés de la protéine noyau d'hépadnavirus de type sauvage, cette deuxième séquence comprenant les trois acides aminés C-terminal de la protéine noyau d'hépadnavirus de type sauvage, et/ou étant réunie par une liaison peptidique à l'acide aminé N-terminal d'une séquence d'acides aminés sensiblement identique à une partie correspondante d'une protéine de surface d'hépadnavirus de type sauvage, l'acide aminé N-terminal de la protéine de surface étant réuni par une liaison peptidique à l'acide aminé C-terminal de la séquence de protéine noyau.

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