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prostatic neoplasms/glutation
Länken sparas på Urklipp
Sida 1 från 22 resultat
Studies on the non-protein thiols of a human prostatic cancer cell line: glutathione content.
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The low molecular weight thiol (-SH) content of a human prostate carcinoma cell line (LNCap), important to the cellular resistance to drugs and irradiation, was investigated using three forms of thiol assay each utilizing different chemistries. The composition of the mixture was examined by
Glutathione peroxidase activity in cell cultures from different regions of human epididymis.
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OBJECTIVE
To study the secretory activity and androgen regulation of glutathione peroxidase (GPx) in epithelial cell cultures from human epididymis.
METHODS
Tissue was obtained from patients undergoing therapeutic orchidectomy for prostatic cancer. Epithelial cell cultures were obtained from the
Glutathione S-transferases as risk factors in prostate cancer.
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Glutathione S-transferases are enzymes involved in the metabolism of carcinogens and in the defence against reactive oxygen species. Genetic polymorphisms have been detected in glutathione S-transferases M1, T1 and P1, and some of these polymorphisms have been associated with an increased risk of
Glutathione-related enzymes in cell cultures from different regions of human epididymis.
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Protection of maturing sperm from potential endogenous or exogenous harmful substances during their transit throughout the epididymis is a critical event. The authors studied the activity of gamma-glutamyl transpeptidase (GGT) and glutathione S-transferase (GST), and glutathione (GSH) levels in
[Characteristics of methyl-specific PCR-test of glutathione-S-transferase P1 gene in plasm DNA and cellular urinary precipitate for differential diagnosis of prostatic adenoma and adenocarcinoma].
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The study was made of possibilities of methyl-specific PCR-test of glutathione-S-transferase P1 (GSTP1) gene in differential diagnosis of prostatic cancer: sensitivity of the test, comparison of reagents of Russian and foreign production. Blood plasm and cellur urinary precipitate DNA was
Glutathione S-transferase: differential expression of alpha, mu, and pi isoenzymes in benign prostate, prostatic intraepithelial neoplasia, and prostatic adenocarcinoma.
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Glutathione S-transferases (GST) comprise a family of enzymes which are critical for inactivation of toxins and carcinogens. We examined the cellular expression of multiple subclasses of GST immunohistochemically in 25 radical prostatectomy specimens with clinically localized prostate cancer.
Immunohistochemical expression of pi class glutathione S-transferase in the basal cell layer of benign prostate tissue following chronic treatment with finasteride.
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BACKGROUND
Glutathione S-transferases (GST) may prevent carcinogenesis through inactivation of reactive electrophiles by conjugation to reduced glutathione. Treatment directed at the induction or preservation of GST-pi expression in normal epithelium could have a profound impact on the prevention of
Inflammation and atrophy precede prostatic neoplasia in a PhIP-induced rat model.
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2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine (PhIP) has been implicated as a major mutagenic heterocyclic amine in the human diet and is carcinogenic in the rat prostate. To validate PhIP-induced rat prostatic neoplasia as a model of human prostate cancer progression, we sought to study the
Metallothionein localization and cisplatin resistance in human hormone-independent prostatic tumor cell lines.
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Metallothioneins (MT) are major cysteine-rich proteins with poorly characterized functions. We have examined the MT amount, isotype expression, and subcellular distribution in 4 human hormone-independent prostatic carcinoma cell lines. Both PC-3 and DU-145 cells were thiol-rich cells with similar MT
Chemosensitization of carmustine with maitake beta-glucan on androgen-independent prostatic cancer cells: involvement of glyoxalase I.
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OBJECTIVE
To improve the poor efficacy (< 10%) of chemotherapy for patients with hormone-refractory prostate cancer, we investigated a possible cytotoxic effect of carmustine/beta-glucan combination on prostatic cancer PC-3 cells, focusing on a glutathione-dependent detoxifying enzyme, glyoxalase I
Cytidine methylation of regulatory sequences near the pi-class glutathione S-transferase gene accompanies human prostatic carcinogenesis.
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Hypermethylation of regulatory sequences at the locus of the pi-class glutathione S-transferase gene GSTP1 was detected in 20 of 20 human prostatic carcinoma tissue specimens studied but not in normal tissues or prostatic tissues exhibiting benign hyperplasia. In addition, a striking decrease in
The Effects of Lycopene on the Methylation of the GSTP1 Promoter and Global Methylation in Prostatic Cancer Cell Lines PC3 and LNCaP.
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DNA (cytosine-5-) methylation silencing of GSTP1 function occurs in prostate adenocarcinoma (PCa). Previous studies have shown that there is an inverse relationship between dietary lycopene intake and the risk of PCa. However, it is unknown whether lycopene reactivates the tumor suppressor gene
[Gene-gene and gene-environment interactions as modifier factors of prostatic cancer risk: "a case-only" design study].
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BACKGROUND
The role of susceptibility low penetrance genes and environmental factors in the etiology of prostate cancer (PCa) is unclear, but may involve in some cases multiple alleles at multiple loci.
OBJECTIVE
To evaluate the association of gene-gene and gene-environment interactions with
Genetic Polymorphism of GSTM1 and GSTT1 and Risk of Prostatic Carcinoma - a Meta-analysis of 7,281 Prostate Cancer Cases and 9,082 Healthy Controls.
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Genetic polymorphisms constitute one of the reasons behind the racial variation in prostate cancer occurrence. Published studies regarding genetic associations of glutathione S-transferase mu 1 (GSTM1) and glutathione S-transferase theta 1 (GSTT1) null deletion polymorphisms with prostatic carcinoma
Identification of novel prostate-specific antigen-binding peptides modulating its enzyme activity.
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Prostate-specific antigen (PSA) is a serine protease with highly prostate-specific expression. Measurement of PSA in serum is widely used for diagnosis and monitoring of prostate cancer. PSA dissolves the seminal gel forming after ejaculation. It has been suggested to mediate invasion and metastasis
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