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Human interferon: mass production in a newly established cell line, MG-63.

Billiau A, Edy VG, Heremans H, Van Damme J, Desmyter J, Georgiades JA, De Somer P.
Antimicrobial Agents and Chemotherapy. 1977 July;12(1):11-15.
Abstract
MG-63 cells, a line derived from an osteosarcoma, produced high yields of interferon after superinduction with polyinosinic acid.polycytidylic acid, cycloheximide, and actinomycin D. Advantages of MG-63 cells over diploid fibroblasts as a substrate are: no requirement for aging between confluency and induction, no requirement for priming, and 3.7-fold higher yields per square centimeter of culture surface. Physicochemically and biologically, MG-63 cell interferon resembles fibroblast rather than leukocyte interferon.