PROTECTION OF BIOLOGICALLY ACTIVE MOLECULES DURING RADIATION STERILIZATION

To provide compositions and methods that relate to protecting biological activity of a biologically active molecule, including a biologically active protein or a biological response modifier such as an immune response modifier, against radiation damage during radiation sterilization.SOLUTION: Inclus...

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Hauptverfasser: JENNY LOUISE HOWARD, JEFF BOYLE, PAUL Q HU, NADIA PATRICE ALLEN
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide compositions and methods that relate to protecting biological activity of a biologically active molecule, including a biologically active protein or a biological response modifier such as an immune response modifier, against radiation damage during radiation sterilization.SOLUTION: Inclusion of at least one radioprotectant compound, for example, cysteine, reduced glutathione, melatonin, and/or histidine, in an exemplary mitogenic lectin formulation during spray-drying onto surfaces of immunoassay tubes, surprisingly protected the lectin against loss of biological (mitogenic) activity that would otherwise result from electron beam radiation sterilization. The radioprotectant compound also protected other biologically active molecules and stabilized their biological activities, permitting them to retain biological activity after extended storage following the radiation treatment.SELECTED DRAWING: Figure 12 【課題】放射線滅菌中の放射線障害から、生物学的活性タンパク質または免疫応答修飾物質などの生物学的応答修飾物質を含む、生物学的活性分子の生物学的活性を防護することに関連する組成物および方法を提供する。【解決手段】イムノアッセイチューブの表面上への噴霧乾燥中、例示的マイトジェンレクチン製剤に、少なくとも1つの放射線防護化合物、例えば、システイン、還元型グルタチオン、メラトニン、および/またはヒスチジンを含めることにより、驚くべきことに、本来であれば電子ビーム放射線滅菌の結果として生じるであろう生物学的(マイトジェン)活性損失から、レクチンが防護された。放射線防護化合物はまた、その他の生物学的活性分子も防護し、それらの生物学的活性を安定させて、それらが、放射線処理後に長期保管した後、生物学的活性を保持することを可能にする。【選択図】図12