hepatoblastoma/carbohydrate

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Carbohydrate-dependent biological activities of glycosylated human interferon-beta on human hepatoblastoma cells in vitro.

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To evaluate the relationship between the sugar chain structure and biological activity, fibroblast-derived glycosylated human interferon-beta, Chinese hamster ovary cell-derived glycosylated recombinant human interferon-beta and Escherichia coli-derived unglycosylated recombinant human

Hypoglycemia in a child with hepatoblastoma.

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A five-year-old boy with hepatoblastoma, who showed a severe hypoglycemia as an initial symptom, was studied. After resection of tumors, hypoglycemia disappeared and did not recur despite recurrence of tumor. A high concentration of insulin-like activity (ILA) was found in preoperative serum and in

Purification and characterization of Alpha-Fetoprotein from the human hepatoblastoma HepG2 cell line in serum-free medium.

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Alpha-fetoprotein (AFP) is a tumor-associated embryonic molecule whose precise biological function remains unclear. A complete definition of the physiological activities of this oncofetal protein has been severely limited, until now, by the lack of a purification procedure appropriate to obtain pure

Plasma total and glycosylated corticosteroid-binding globulin levels are associated with insulin secretion.

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In humans, steroid hormones circulate in the blood mainly bound to specific steroid transport proteins, namely corticosteroid-binding globulin (CBG) for cortisol and sex hormone-binding globulin (SHBG) for testosterone and estradiol. The binding activities of these proteins are believed to modulate

USING OF CELL LINE HepG2 FOR ASSESSMENT OF TOXIC AND METABOLIC EFECTS OF ANTIPSYCHOTIC DRUGS.

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In order to study in vitro the toxic and metabolic effects of antipsychotic drugs (AP) on the cells of hepatic origin we used human hepatoblastoma cell line HepG2. We cultured HepG2 cells in the presence of two AP of the first and second generations (haloperidol and olanzapine, respectively) adding

Lectin-binding heterogeneity of alphafetoprotein (AFP). An observation in nude mouse xenografts of endodermal sinus tumors and in pediatric surgical patients.

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We determined by affinity chromatography on concanavalin A-Sepharose the carbohydrate variant patterns of alphafetoprotein in the sera of 15 infants and children with endodermal sinus tumors (five cases), a neonatal mature teratoma (one case), hepatoblastomas (two cases), pancreatic carcinoma (one

Clinical relevance of alphafetoprotein microheterogeneity in alphafetoprotein-secreting tumors.

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The importance of the oncofetal glycoprotein antigen alphafetoprotein (AFP) as a tumor marker is well documented. Structural heterogeneity of AFP molecules due to its associated carbohydrate moieties has also been demonstrated. In the present study, molecular variants of AFP, Concanavalin A reactive

Potential usefulness of biotinylated neoglycoproteins as tumor markers.

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We used several biotinylated neoglycoproteins as tumor markers to detect and localize endogenous carbohydrate-binding proteins in cultured hepatoblastoma, melanoma, and bladder carcinoma tumor cells. The neoglycoproteins used consisted of cellobiose, fucose, N-acetyl-galactosamine,

Molecular biology of circulatory shock: IV. Translation and secretion of HEP G2 cell proteins are independently attenuated during heat shock.

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In previous studies we have shown evidence of heat shock gene transcription in pig liver after cardiogenic shock (Buchman et al: Surgery 108:559, 1990). To study the effect of heat shock on synthesis, secretion, and glycosylation of liver cell proteins, a human hepatoblastoma cell line (Hep G2) was

Acetaldehyde-induced growth retardation and micro-heterogeneity of the sugar chain in transferrin synthesized by HepG2 cells.

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BACKGROUND A carbohydrate-deficient transferrin (CDT) is the most useful marker of alcohol abuse; however, the mechanism of production and the pathophysiologic roles of CDT remain obscure. The effects of alcohol and its metabolites on growth and proliferation, transferrin synthesis, and

Myc and ChREBP transcription factors cooperatively regulate normal and neoplastic hepatocyte proliferation in mice.

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Analogous to the c-Myc (Myc)/Max family of bHLH-ZIP transcription factors, there exists a parallel regulatory network of structurally and functionally related proteins with Myc-like functions. Two related Myc-like paralogs, termed MondoA and MondoB/carbohydrate response element-binding protein

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