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United States Patent

US Patent 8389708: Method of cancer treatment using siRNA silencing

US 8389708  ·  granted 2013-03-05

Abstract

The present invention is a method for the treatment of cancer involving tumor derived immunosuppression in a subject. The method comprises administering to a subject one or more siRNA constructs capable of inhibiting the expression of an immunosuppressive molecule. The invention also provides siRNA constructs and compositions.

Patent Number 8389708
Title Method of cancer treatment using siRNA silencing
Granted 2013-03-05
CPC Classification C07H 21/04, C12N 15/11, C12Q 1/68
Number of Claims 5

Abstract

The present invention is a method for the treatment of cancer involving tumor derived immunosuppression in a subject. The method comprises administering to a subject one or more siRNA constructs capable of inhibiting the expression of an immunosuppressive molecule. The invention also provides siRNA constructs and compositions.

Claim 1

A composition comprising an siRNA construct directed to indoleamine 2,3-dioxygenase (IDO) mRNA, said siRNA binding to said IDO, wherein said binding preventsexpression of said IDO, thereby modulating IDO-directed tumoral immunosuppression in a mammalian subject and a pharmaceutically acceptable carrier, wherein said siRNA construct is within a liposome coupled to an anti-MAGE antibody that is targeted to atumor.

Claims

5 total

A composition comprising an siRNA construct directed to indoleamine 2,3-dioxygenase (IDO) mRNA, said siRNA binding to said IDO, wherein said binding preventsexpression of said IDO, thereby modulating IDO-directed tumoral immunosuppression in a mammalian subject and a pharmaceutically acceptable carrier, wherein said siRNA construct is within a liposome coupled to an anti-MAGE antibody that is targeted to atumor.