Recombinant retroviruses have been shown to bind to fibronectin (FN) and increase the efficiency of gene transfer to a variety of cell types. Despite recent work to optimize gene transfer on recombinant FN, the mechanism of retrovirus binding to FN and the interactions of target cells with the bound virus remain elusive. We investigated the roles of virus surface glycoprotein (gp70), cell-condi...

Koala retrovirus (KoRV) is a newly described endogenous retrovirus and is unusual in that inserts comprise a full-length replication competent genome. As koalas are known to suffer from an extremely high incidence of leukaemia/lymphoma, the association between this retrovirus and disease in koalas was examined. Using quantitative real-time reverse transcriptase PCR it was demonstrated that KoRV...

We recently described a protocol for determination of retrovirus mutation rates, that is, the mutation frequency in a single cycle of retrovirus replication (J.P. Dougherty and H.M. Temin, Mol. Cell. Biol. 6:4378-4395, 1987; J.P. Dougherty and H.M. Temin, p. 18-23, in J. H. Miller and M. P. Calos, ed., Gene Transfer Vectors for Mammalian Cells, 1987). We used this protocol to determine the muta...

PURPOSE Proliferative vitreoretinopathy (PVR) is a serious problem in vitreoretinal surgeries. A report of a previous study has indicated that platelet-derived growth factor alpha receptor (alphaPDGFR) plays an important role in a rabbit model of this disease and that a dominant negative alphaPDGFR potently suppresses PVR in an ex vivo setting. Herein, the effect of in vivo gene delivery of a d...

Sperm adsorbed with retrovirus particles were recovered from the epididymis of apparently normal male mice. Epididymal semen from all four mouse strains examined was positive for retrovirus (10(5) to 10(8) particles per microgram of protein) indicating that epididymal fluids and sperm may be important vehicles for murine retrovirus spread. Immunoblot analyses revealed that the banding patterns ...

Retrovirus-mediated gene transfer was used to obtain expression of the macrophage colony-stimulating factor (MCSF) receptor, c-fms, on hematopoietic lineages that normally do not express this receptor. Cultures ofmurine fetal liver cells infected with the c-fms retrovirus developed erythroid colonies in cultures stimulated with M-CSF. However, these colonies were fewer and less hemoglobinised t...

A complementary DNA clone containing human endogenous retrovirus-like sequences spliced to sequences encoding human calbindin was discovered by complementary DNA subtraction analysis between two human prostate cell lines, PC3 and DU145. This gene is presumably activated by the long terminal repeat of the retrovirus-like sequence. It belongs to a member of the retrovirus-like H (tRNA(his) primer...

A complementary DNA clone containing human endogenous retrovirus-like sequences spliced to sequences encoding human calbindin was discovered by complementary DNA subtraction analysis between two human prostate cell lines, PC3 and DU145. This gene is presumably activated by the long terminal repeat of the retrovirus-like sequence. It belongs to a member of the retrovirus-like H (lKN V'" primer b...