Lappuse 1 no 1100 rezultātiem
Decreasing oxidative damage with the antioxidant agent N-acetylcysteine (NAC) can block the side effects of chemotherapy, but may diminish anti-tumor efficacy. We tested the potential for interactions of high dose NAC against a minimally effective cisplatin chemotherapy regimen in rat models of
Our study involved 25 postmenopausal patients (endometrial carcinoma--16, breast (6) and colorectal (3) cancer, aged 56.8 +/- 0.9). All patients were in clinical remission. None had received any specific therapy for at least 12 months. After a laboratory endocrine-genotoxic switch evaluation, 17
BACKGROUND
Atypical teratoid rhabdoid tumors (AT-RT) are pediatric tumors of the central nervous system with limited treatment options and poor survival rate. We investigated whether enhancing chemotherapy toxicity by depleting intracellular glutathione (GSH; a key molecule in cisplatin resistance)
The thiol N-acetylcysteine (NAC), a precursor of intracellular glutathione (GSH), efficiently prevented the induction of lung tumors in Swiss albino mice, when supplemented to the diet (0.2%) both before and after an i.p. injection of the carcinogen urethan (ethyl carbamate). Irrespective of urethan
Intratumoral hypoxia is a poor prognostic factor associated with reduced disease-free survival in many cancer types, including breast cancer. Hypoxia encourages tumor cell proliferation, stimulates angiogenesis and lymphangiogenesis, and promotes epithelial-mesenchymal transition and metastasis.
Aim of this study was to evaluate the effects of short-term (7 days) N-acetylcysteine (NAC) at 1,200 mg daily supplementation on muscle fatigue, maximal oxygen uptake (VO(2max)), total antioxidant capacity (TAC), lactate, creatine kinase (CK), and tumor necrotic factor-alpha (TNF-α). Twenty-nine
Four agents, fumaric acid (FA), N-acetylcysteine (NAC), N-(4-hydroxyphenyl) retinamide (4-HPR) and beta-carotene (beta-CT), were evaluated for potential chemopreventive activity using the tobacco-specific carcinogen 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK)-induced lung tumor model in
Proinflammatory cytokines, altered connective tissue metabolism, and overexpression of matrix metalloproteinases (MMPs) such as stromelysin compared to tissue inhibitors of metalloproteinases (TIMPs) result in synovial inflammation and erosion of arthritic cartilage. Tumor necrosis factor alpha
Cadmium is a heavy metal posing severe risks and destructive effects on human health. Although cadmium was classified as a human carcinogen, it has been also shown to be a cytotoxic agent that induces cell death either by necrosis or apoptosis. In this study, we investigated the protective role of
Certain adult diseases may have their origin early in life, and perinatal exposures may contribute to cancers both during childhood and later in life. We recently demonstrated that mainstream cigarette smoke (MCS) induces a potent carcinogenic response in mice when exposure starts soon after birth.
OBJECTIVE
N-acetylcysteine (NAC), is one of the cheapest, safest and widely used over-the-counter-drugs in Thailand. Here the authors examine the antimetastatic potential of NAC on the metastasis of human prostate cancer cells.
METHODS
Cytotoxicity of NAC to human prostate cancer cells, DU145 and
Catechol estrogens, especially 4-hydroxylated metabolites of 17beta-estradiol (E(2)), are responsible for estrogen-induced carcinogenesis. 4-Hydroxyestradiol (4-OHE(2)), a major metabolite of E(2) formed preferentially by cytochrome P-450 1B1, is oxidized to E(2)-3,4-quinone, which can react with
There is growing evidence that thiol conjugates of isothiocyanates present in cruciferous vegetables are effective cancer chemopreventive and potentially active therapeutic agents. The effects of the N-acetylcysteine conjugate of phenethyl isothiocyanate (PEITC-NAC) on tumor cell growth were
The metabolic inhibitor 3-bromopyruvate (3-BrPA) is a promising anti-cancer alkylating agent, shown to inhibit growth of some colorectal carcinoma with KRAS mutation. Recently, we demonstrated increased resistance to 3-BrPA in wt p53 tumor cells compared to those with p53 silencing or mutation.
The thiol N-acetylcysteine (NAC), an analog and precursor of glutathione, displays cancer preventive properties not only in early stages of the carcinogenesis process but also in its advanced stages. NAC inhibited type-IV collagenase activity as well as invasion, tumor take, and metastasis of