Monoclonal antibodies to the p15 and p12 gag proteins were used to detect the P120gag-abl transforming protein of Abelson murine leukemia virus in nonproductively transformed normal rat kidney fibroblast cells. The results demonstrate that, in addition to the prominent plasma membrane location, P120gag-abl was associated with points of adhesion between the cell and the substratum. The localizat...

Abelson murine leukemia virus (A-MuLV)-transformed fibroblast nonproducer cells were used to prepare A-MuLV stocks containing a number of different helper viruses. The oncogenicity of the A-MuLV stocks was tested by animal inoculation and their ability to transform normal mouse bone marrow cells was measured in vitro. All of the A-MuLV stocks transformed fibroblast cells efficiently. However, o...

Interspecies somatic cell nuclear transfer (iSCNT) is a useful method to preserve endangered species and to study the reprogramming event of a nuclear donor cell by the oocyte. Although several studies of iSCNT using murine cells and bovine oocytes have been reported, the development of murine-bovine iSCNT embryos beyond the 8-cell stage has not been successful. In this paper, we examined the d...

The BALB/c murine endogenous xenotropic leukemia virus pseudotype of m1 Moloney sarcoma virus [m1MSV(B-MuX)] was used to productively transform diploid Japanese quail embryo cells. The majority of newly hatched quail inoculated with m1MSV(B-MuX)-transformed quail embryo fibroblast cells rapidly developed tumors which were predominantly locally invasive fibrosarcomas, but metastases were observe...

background: cd19 is a pan b cell marker that is recognized as an attractive target for antibody-based therapy of b-cell disorders including autoimmune disease and hematological malignancies. the object of this study was to stably express the human cd19 antigen in the murine nih-3t3 cell line aimed to be used as an immunogen in our future study. methods: total rna was extracted from raji cells i...