An in vitro focus-induction assay for xenotropic murine leukemia virus, feline leukemia virus C, and the feline--primate viruses RD-114/CCC/M-7

Autor: Paul T. Peebles
Rok vydání: 1975
Předmět:
Zdroj: Virology. 67(1)
ISSN: 0042-6822
Popis: A rapid focus-induction assay has been developed for certain replicating (r+) but nontransforming (t−) mammalian type C viruses including xenotropic murine leukemia virus (X-MuLV), feline leukemia virus C (FeLV-C), and feline-primate viruses RD-114/CCC/M-7. Mink cells infected only with r−t+ defective Moloney murine sarcoma virus (MSV) were established into a phenotypically flat cell line (S+L− MiCl1). When S+L− MiCl1 monolayers were superinfected with dilutions of the r+t− type C viruses, foci formed with one-hit kinetics. Focus induction was enhanced by treatment of the cells with either DEAE-dextran or polybrene. Quantitation of r+t− virus by use of S+L− MiCl1 cells was comparable to that of other biological assay systems.
Databáze: OpenAIRE