Methods for the selective modification of viral nucleic acids
First Claim
1. A method of inactivating an infectious animal virus in a biological composition containing non-viral protein, said method comprising contacting the composition with a selective ethyleneimine oligomer inactivating agent under viral inactivating conditions, wherein the biological composition is selected from the group consisting of human milk, human saliva, human semen, human serum, a human product of a mammalian cell culture, a human product of a non-mammalian cell culture, a human non-blood product produced by recombinant DNA technology, and a human placental extract.
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Abstract
This invention provides means and methods of inactivating viruses and other organisms in cell-containing or biopolymer-containing compositions without significant alteration of proteins or other biopolymers by contacting such compositions with selective ethyleneimine oligomer inactivating agents, such as the trimer or tetramer.
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Citations
17 Claims
- 1. A method of inactivating an infectious animal virus in a biological composition containing non-viral protein, said method comprising contacting the composition with a selective ethyleneimine oligomer inactivating agent under viral inactivating conditions, wherein the biological composition is selected from the group consisting of human milk, human saliva, human semen, human serum, a human product of a mammalian cell culture, a human product of a non-mammalian cell culture, a human non-blood product produced by recombinant DNA technology, and a human placental extract.
- 2. A method of inactivate infectious animal viruses in a biological composition containing non-viral protein, said method comprising contacting the composition with a selective ethyleneirnine oligomer inactivating agent under viral inactivating conditions, wherein the biological composition is selected from the group consisting of red blood cell. concentrates, platelet concentrates, and leukocyte concentrates.
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3. A method of inactivating infectious viruses in a biological composition comprising contacting the composition with a selective ethyleneimine oligomer inactivating agent under viral inactivating conditions, wherein the biological composition comprises one or more human purified protein selected from the group consisting of fibrinogen, factor VII, factor VIII, factor IX, factor X, immunoglobin, prealbumin, retinol-binding protein, albumi, alpha-globulins, gammaglobulins, complement components, fibronectin, antitbrombin III, hemoglobin, interferon, growth factors, plasminogen activator, growth hormone, insulin and elropoiefim.
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4. A method of inactivating an infectious virus in a biological composition, wherein said virus is contained in a cell, said method comprising contacting the cell with a selective ethyleneimine oligomer inactivating agent.
- 5. A method of inactivating infectious animal viruses in a biological composition containing non-viral protein, said method comprising contacting the composition with a selective ethyleneimine oligomer inactivating agent under viral inactivating conditions, wherein said biological composition is selected from the group consisting of whole human blood, purified or partially purified blood proteins, purified or partially purified blood plasma, platelet-rich plasma, a plasma concentrate, a precipitate from any fractionation of said plasma, a supernatant from any fractionation of said plasma, and a blood cryoprecipitate.
Specification