Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Lymphokines – e.g. – interferons – interlukins – etc.
Reexamination Certificate
2003-02-10
2010-10-26
Spector, Lorraine (Department: 1647)
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Lymphokines, e.g., interferons, interlukins, etc.
C424S085100
Reexamination Certificate
active
07820793
ABSTRACT:
A novel IFN-α/β independent ligand receptor system which upon engagement leads, among other things, to the establishment of an anti-viral state is disclosed. Further disclosed are three closely positioned genes on human chromosome 19 that encode distinct but highly homologous proteins, designated IFN-λ1, IFN-λ2, IFN-λ3, based, inter alia, in their ability to induce antiviral protection. Expression of these proteins is induced upon viral infection. A receptor complex utilized by all three IFN-λ proteins for signaling is also disclosed. The receptor complex is generally composed of two subunits, a novel receptor designated IFN-λR1 or CRF2-12, and a second subunit, IL-10R2 or CRF2-4, which is also a shared receptor component for the IL-10 and IL-22 receptor complexes. The gene encoding IFN-λR1 is generally widely expressed, including many different cell types and tissues. Expression of these proteins is induced by immune events, including, for example, upon viral infection. Apoptotosis may also be induced under effective conditions.
REFERENCES:
patent: 2003/0104579 (2003-06-01), Baum et al.
patent: 2004/0029228 (2004-02-01), Presnell et al.
patent: 2004/0138122 (2004-07-01), Klucher et al.
patent: 2004/0146988 (2004-07-01), Sheppard et al.
patent: WO 02/02627 (2002-10-01), None
Gallagher Grant
Kotenko Sergei
Lowenstein & Sandler PC
Spector Lorraine
University of Medicine and Dentistry of New Jersey
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