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The composition of gangliosides was examined in a normal rat embryo fibroblast cell line (REF52) and in two viral transformants: a polyoma transformant (REF52-PyMLV) and a simian viral 40 transformant (REF52-SV40). The distribution of gangliosides in the cell lines was determined using gas-liquid chromatography and high-performance thin-layer(More)
Previous studies showed that levels of some glycosphingolipids (GSLs) expressed in solid brain tumors grown in vivo were reduced or undetectable in cultured cells prepared from the tumors. This phenomenon has been attributed either to suppressed glycolipid synthesis from unknown forces of the tissue culture environment or to the absence of host cells that(More)
Previous findings with various murine tumor cell lines suggest an association between ganglioside GM3 and cell cohesive properties. The influence of GM3 on cohesion was studied in two mouse brain tumor cell lines: ependymoblastoma (EPEN) and CT-2A. In culture, the EPEN cells grow as islands and contain GM3 as the only ganglioside, whereas the CT-2A cells(More)
Ginsenoside Rh2 is one of the most important ginsenosides in ginseng with anti-inflammatory and antitumor effects. However, the extremely poor oral bioavailability induced by its low water solubility greatly limits the potency of Rh2 in vivo. In the previous study, we sulfated 20(S)-ginsenoside Rh2 with chlorosulfonic acid and pyridine method, and got one(More)
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