leiomyosarcoma/glutathione

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Glutathione S-transferase in hormonal carcinogenesis.

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Treatment with testosterone propionate (TP) and diethylstilbestrol (DES) or TP and estradiol (E2) for 8-9 months causes development of leiomyosarcomas in the vas deferens or uterus of Golden Syrian hamsters at a frequency of 100%. In males, treatment with estrogens alone results in renal tumors,

Exogenous 17beta-estradiol blocks alpha and mu but not pi class glutathione S-transferase immunoreactivity in epithelium of Syrian hamster vas deferens.

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Members of the glutathione S-transferase (GST) family of detoxification enzymes play a role in chemotherapy resistance in certain cancers but have not been directly implicated as agents whose absence may predispose tissues to hormonally induced tumorigenesis. Here we report the development of a

Curcumin Acts as a Chemosensitizer for Leiomyosarcoma Cells In Vitro But Fails to Mediate Antioxidant Enzyme Activity in Cisplatin-Induced Experimental Nephrotoxicity in Rats.

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Background. Cisplatin (cis-diamminedichloroplatinum) is a widely used chemotherapeutic agent for the treatment of various cancers. Although it represents an effective regimen, its application is accompanied by side effects to normal tissues, especially to the kidneys. Cisplatin generates free

Impact of genotypic and phenotypic differences in sarcoma models on the outcome of photochemical internalization (PCI) of bleomycin.

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The low curative response to current treatment regimens for most soft tissue sarcomas indicates a strong need for alternative treatment strategies and predictive markers for treatment outcome. PCI (photochemical internalization) is a novel treatment strategy to translocate drugs into cytosol that

Upregulation of urokinase-type plasminogen activator by endogenous and exogenous HIV-1 Tat protein in tumour cell lines derived from BK virus/tat-transgenic mice.

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OBJECTIVE To demonstrate that Tat modulates the plasminogen-dependent proteolytic activity of tumour cell lines derived from BK virus (BKV)/tat-transgenic mice by affecting the production of plasminogen activators (PA) and the PA inhibitor (PAI)-1 and to demonstrate that this occurs through

Identification and characterization of AGS4: a protein containing three G-protein regulatory motifs that regulate the activation state of Gialpha.

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Activators of G-protein signaling 1-3 (AGS1-3) were identified in a functional screen of mammalian cDNAs that activated G-protein signaling in the absence of a receptor. We report the isolation and characterization of an additional AGS protein (AGS4) from a human prostate leiomyosarcoma cDNA

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