نتایج جستجو برای: تبدیل gst
تعداد نتایج: 41333 فیلتر نتایج به سال:
Glutathione S-transferases (GSTs) are multifunctional enzymes involved in the protection of cellular components against anti-cancer drugs or peroxidative stress. Previously we found that GST pi, an isoform of the GSTs, is transported into the nucleus. In the present study, we found that GST pi is present in mitochondria as well as in the cytosol and nucleus in mammalian cell lines. A construct ...
Since human colorectal tumors are insensitive to most chemotherapeutic agents, there is a need for the discovery of new drugs that would show activity against this disease. In an attempt to better appreciate the relevance of a widely used mouse colon tumor (colon adenocarcinoma Co38) as a screening model for human colorectal tumors, we compared the main phase I and phase II drug-metabolizing en...
Gold sodium thiomalate (GST) inhibited in vitro antigen- and mitogen-triggered human lymphocyte DNA synthesis. Inhibition of responsiveness was observed with concentrations of GST equivalent to gold levels found in serum or tissues of patients receiving chrysotherapy, Inhibition was dependent upon the gold ion itself since GST and gold chloride were both inhibitory whereas thiomalic acid was no...
گلوتاتیون-S-ترنسفرازها (GSTs) آنزیمهایی هستند که در تمامی ارگانیسمهای زنده یافت میشوند و در سمزدایی ترکیبات زنوبیوتیک از طریق فاز II الحاق با گلوتاتیون عمل نموده و نقش مهمی را در مقاومت دارویی ایفا میکنند. فعالیت GST در سویههای مقاوم به کلروکین پلاسمودیوم جوندگان و انسانی به طور معنی داری در مقایسه با سویه های حساس بالاتر میباشد. در مطالعه حاضر فعالیت و سطح GST در موشهای آلوده با پلاسم...
Although recent studies suggest involvement of glutathione transferase (GST) of blood vessels in vasodilation by nitroglycerin, GST forms in blood vessels remain to be studied. In this study, three GST forms (p1 values 8.3,6.6, and 4.8) were purified from human aorta and four (PI values 6.0, 5.6, 5.3, and 4.6) from the heart by affinity chromatography followed by chromatofocusing. The major for...
BACKGROUND/AIMS Glutathione S-transferases (GSTs) are cytosolic enzymes excreted from renal tubules following tubular damage. α-GST primarily originates from proximal tubules, while π-GST from distal tubules and collecting ducts. We investigated if GST levels are associated with renal function in patients with type 1 diabetes. METHODS We conducted a cross-sectional study including 189 Caucasi...
BACKGROUND Several assays are used to measure type-specific serological responses to human papillomavirus (HPV), including the bead-based glutathione S-transferase (GST)-L1 multiplex serology assay and virus-like particle (VLP)-based ELISA. We evaluated the high-throughput GST-L1, which is increasingly used in epidemiologic research, as a measure of cumulative HPV infection and future immune pr...
Gastric stromal tumor (GST) is a set of gastrointestinal mesenchymal tumors those originate from interstitial cells of Cajal. Its early diagnosis and treatment are critical to prognosis.[1] The occurrence of GST remains obscure; this study used Affymetrix expression spectrum chip to detect the gene expression spectrum of GST and explore new molecular target that is used in the treatment and pro...
GST-TAT-SOD, a cell-permeable bifunctional antioxidant enzyme, is a potential selective radioprotector. This study aimed to investigate the cytoprotective activity of GST-TAT-SOD against cisplatin-induced damage. The current study showed that cisplatin induced the formation of reactive oxygen species in normal L-02 cells. GST-TAT-SOD (2000 U/mL) executed its antioxidant role by directly scaveng...
We report that a major 23-kDa allergen from German cockroach (Blattella germanica) is a glutathione S-transferase (EC 2.5.1.18; GST). Natural B. germanica GST, purified from cockroach body extracts by glutathione affinity chromatography, and recombinant protein expressed in Escherichia coli using the pET21a vector, showed excellent IgE antibody binding activity. B. germanica GST caused positive...
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