Methods for modulating T cell survival by modulating bcl-X.sub.L

Drug – bio-affecting and body treating compositions – Whole live micro-organism – cell – or virus containing – Genetically modified micro-organism – cell – or virus

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435375, 4353201, 4351723, A61K 4800, C12N 510, C12N 1509

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active

061432911

ABSTRACT:
Methods for protecting a T cell from cell death are described. The methods involve contacting the T cell with an agent which augments the bcl-X.sub.L protein level in the T cell such that it is protected from cell death. The invention further pertains to methods for increasing the susceptibility of a T cell to cell death, comprising contacting the T cell with at least one agent which decreases bcl-X.sub.L protein level in the T cell. Both in vivo and in vitro methods are described.

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