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. 1979 Jul;16(1):49–55. doi: 10.1128/aac.16.1.49

Human Fibroblast Interferon for Clinical Trials: Production, Partial Purification, and Characterization

Alfons Billiau 1, Jo Van Damme 1, Fred Van Leuven 2, Victor G Edy †, Marc De Ley 1, Jean-Jacques Cassiman 2, Herman Van Den Berghe 2, Piet De Somer 1
PMCID: PMC352787  PMID: 475374

Abstract

The production and partial purification of human fibroblast interferon for performing clinical trials is described. The interferon was produced by superinduction (exposure to riboinosinic-ribocytidylic acid, cycloheximide, and actinomycin D) of large numbers of human diploid fibroblast cultures. The yield averaged 750 units per cm2 of culture area. The interferon was concentrated and purified by a two-step procedure involving acid desorption from controlled-pore glass beads and dialysis against polyethylene glycol. Human plasma protein was added as a stabilizer. The lyophilized end product had a specific activity of 0.5 × 106 to 1 × 106 units/mg of protein; it could be reconstituted for injection at a concentration of 2 × 106 units/ml. The composition of this interferon was characterized by crossed immunoelectrophoresis with polyspecific antibodies prepared against the principal sources of potential contaminants: human serum, calf serum, and normal human fibroblasts. Several components of each source were detected. Although the major component of calf serum, bovine serum albumin, was absent, other minor components were retained by the production and purification sequence. One of the main contaminants of fibroblast origin was found to be fibronectin.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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