Interferon-like activity in an anti-interferon anti-idiotypic hybridoma antibody.
We describe here an anti-idiotypic hybridoma antibody directed against affinity-purified rabbit idiotypic antibodies (Rb-Id) to a homogeneous protein, the recombinant human leukocyte A interferon (rIFN-alpha A). The supernatant of the hybridoma, designated 3-1B, was able to inhibit the neutralization of rIFN-alpha A activity by the idiotypic antibodies. An in vivo passage of uncloned 3-1B cells yielded hybridoma cells (presumably a subclone), designated 3B1, the supernatant of which exhibited interferon-like antiviral activity with both bovine kidney (MDBK) cells and human amnion (WISH) cells. This activity could be absorbed by polymer-bound goat anti-mouse immunoglobulin serum and by Rb-Id coupled to Affi-Gel 10, and could be partially eluted from the latter at pH 2. 5. The anti-idiotypic hybridoma antibody was able to compete with 125I-rIFN-alpha A for binding to the Rb-Id and also to interferon receptor-bearing MDBK cells. The clinical significance of an interferon-like anti-idiotypic antibody is discussed.[1]References
- Interferon-like activity in an anti-interferon anti-idiotypic hybridoma antibody. Osheroff, P.L., Chiang, T.R., Manousos, D. J. Immunol. (1985) [Pubmed]
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