glucosamine/sarcoma

The effect of glucosamine on phenotypic mixing between vesicular stomatitis virus (VSV) and avian sarcoma virus (ASV) was studied. Phenotypic mixing decreased with increase in glucosamine concentration, and, in the presence of 20 mM glucosamine, was no longer detectable. In the presence of 20 mM

Treatment by glucosamine of avian sarcoma virus-transformed chicken embryo fibroblast (CEF) cells completely inhibited the formation of progeny-transforming virus particles. Such cells, however, could continue to synthesize non-infectious physical particles containing both viral RNA and the enzyme

We have isolated a syngeneic monoclonal antibody (HepSS-1) reactive to a murine methylcholanthrene-induced fibrosarcoma, Meth-A. HepSS-1 also bound to a wide variety of established and fresh normal cells derived from not only mice but also other species such as human, monkey, rat, hamster, and

Intraperitoneal treatments with D-glucosamine, an inhibitor of the glycosylation of the viral envelope, decreased the growth rate of tumors induced in quails or in chicks by Rous sarcoma virus and increased the survival of mice inoculated with human influenza virus.

Glucosamine 6-phosphate synthase (EC 5.3.1.19) purified from various rat tissues by a procedure involving chromatography on diethylaminoethyl Sephadex and hydroxylapatite were characterized by means of isoelectric focusing. The non-hepatic isozyme, previously reported to be present in Yoshida

Electron microscopy examination of Rous sarcoma virus-transformed chicken embryo cells revealed membrane-free nucleoids resembling type A oncornavirus. These particles were not detected in noninfected cells, nor did they accumulate in excess under conditions of glucosamine block in virus-transformed

Mouse peritoneal macrophages were achieved by cocultivation with syngeneic sarcoma cells. The tumor cells died progressively during the cocultivation, leaving highly activated marcophages. Because of great changes in macrophage morphology during the activation, special efforts were made to identify

In our previous work (Alexandrov et al., 1996) was reported that the rat sarcoma cells induced by SR-RSV express two tumor associated antigens (TAA). The one TAA has a molecular weight of 52 kD and is detected by the help of a monoclonal antibody 2C2 only on the outer side of the plasma membrane of

The membrane glycoproteins from control (BHK21/C13) and Rous sarcoma virus-transformed (C13/B4) baby hamster kidney cells grown in medium containing [14C]- or D-[3H]glucosamine have been separated into two distinct classes: a phenol-soluble fraction and an aqueous fraction. The membrane

Human sarcoma associated antigens (HSAA) have previously been identified by indirect immune fluorescence in human sarcoma cells in culture using sera from patients bearing different types of sarcoma. To further characterize these HSAA, surface proteins of cultured cells were labeled with 125Iodine,