title: Isolation of a Friend recombinant polytropic virus with a T-cell-restricted leukemogenicity.
abstract: Hematopoietic malignant cells of various types were isolated from ICFW mice inoculated as newborn or adult with F-MuLV and grafted into recipient mice. After repeated in vivo cell transplants, several recombinant polytropic viruses (also termed MCF or dualtropic viruses) were isolated from tumors by limiting dilution. Two virus isolates designated RA1-17 and EA1-17 were recovered from the spleen and the omentum, respectively, of the same grafted animal. When inoculated into newborn mice, RA1-17 induced erythroblastosis similar to that induced by other Friend recombinant polytropic viruses. Remarkably, EA1-17 induced T-cell leukemia after a short latency. To our knowledge, this is the first description of a polytropic recombinant virus with a T-cell tropism isolated after inoculation of F-MuLV.
authors.affiliation: U-301 INSERM, Institute de Génétique Moléculaire, Paris, France.
authors.forename: V
authors.initials: V
authors.lastname: Della-Valle
authors.forename: F
authors.initials: F
authors.lastname: Wendling
authors.forename: M
authors.initials: M
authors.lastname: Sitbon
authors.forename: P
authors.initials: P
authors.lastname: Varlet
authors.forename: D
authors.initials: D
authors.lastname: Mathieu-Mahul
authors.forename: C J
authors.initials: CJ
authors.lastname: Larsen
mesh_terms: D000818:Animals; D002460:Cell Line; D003001:Cloning, Molecular; D004279:DNA, Viral / Q000737:chemistry; D005622:Friend murine leukemia virus / Q000235:genetics / Q000302:isolation & purification* / Q000472:pathogenicity; D004915:Leukemia, Erythroblastic, Acute / Q000382:microbiology*; D015458:Leukemia, T-Cell / Q000382:microbiology*; D051379:Mice; D008815:Mice, Inbred Strains; D011995:Recombination, Genetic; D016378:Tissue Transplantation
chemical_list: D004279:DNA, Viral