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Stranica 1 iz 155 rezultatima
In vitro cytoprotective activity of squalene on a bone marrow versus neuroblastoma model of cisplatin-induced toxicity. implications in cancer chemotherapy.
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The development of a non-toxic selective cytoprotective agent that preferentially protects normal tissues from chemotherapy toxicity, without protecting malignant tissues, is a major challenge in cancer chemotherapy research. The available cytoprotective agents are either toxic or lack selective
Squalene selectively protects mouse bone marrow progenitors against cisplatin and carboplatin-induced cytotoxicity in vivo without protecting tumor growth.
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Squalene, an isoprenoid antioxidant is a potential cytoprotective agent against chemotherapy-induced toxicity. We have previously published that squalene protects light-density bone marrow cells against cis-diamminedichloroplatinum( II) (cisplatin)-induced toxicity without protecting tumor cells in
Squalene-PEG: Pyropheophorbide-a nanoconstructs for tumor theranostics.
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Novel nanoscale drug delivery biomaterials are of great importance for the diagnosis and treatment of different cancers. We have developed a new pegylated squalene (SQ-PEG) derivative with self-assembly properties. Supramolecular assembly with a lipophilic photosensitizer pyropheophorbide-a (Ppa) by
Multifunctional squalene-based prodrug nanoparticles for targeted cancer therapy.
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Fluorescent and biotinylated squalene-gemcitabine prodrug nanoparticles exhibiting high drug payloads have been prepared and successfully used to target different cancer cell lines, resulting in increased cell uptake and improved anticancer efficiency, which represents the first targeted system
Squalene epoxidase as a promising metabolic target in cancer treatment.
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Oncogenic alteration of the cholesterol synthesis pathway is a recognized mechanism of metabolic adaptation. In the present review, we focus on squalene epoxidase (SE), one of the two rate-limiting enzymes in cholesterol synthesis, retracing its history since its discovery as an antimycotic target
Tumor regression after intralesional injection of mycobacterial components emulsified in 2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22-tetracosahexaene (squalene), 2,6,10,15,19,23-hexamethyltetracosane (squalane), peanut oil, or mineral oil.
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The influence of mineral oil, squalane, squalene, or peanut oil on the antitumor activity of emulsified Bacillus Calmette-Guérin cell walls or emulsified trehalose-6,6'-dimycolate was studied in mice, each with an established transplant of a syngeneic fibrosarcoma. Each animal received an
Potentiation by squalene of antitumor effect of 3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-1-(2-chloroethyl)-nitros ourea in a murine tumor system.
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The effect of squalene (SQ) on the antitumor activity of 3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-1-(2-chloroethyl)-1-nitros our ea (ACNU) was studied in a murine tumor system. SQ at 4.2 g/kg exhibited a significant potentiating effect on the activity of 10 mg/kg of ACNU against lymphocytic
Consumption of argan oil (Morocco) with its unique profile of fatty acids, tocopherols, squalene, sterols and phenolic compounds should confer valuable cancer chemopreventive effects.
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The aim of this study was to evaluate the fatty acids, tocopherols, squalene, sterols and phenolic antioxidants in three types of argan oil (Moroccan food, Moroccan aesthetic and a French commercial variety) along with a basic comparison with extra virgin olive and sunflower oil. The fatty acid
Chemopreventive effect of squalene on colon cancer.
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Epidemiologic and laboratory studies suggest a cancer protective effect and/or lack of a tumor promoting effect by dietary olive oil as compared with other types of non-marine oils. Squalene, a constituent of olive oil, and a key intermediate in cholesterol synthesis may be regarded as partially
The preventive and therapeutic potential of the squalene-containing compound, Roidex, on tumor promotion and regression.
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Recent scientific evidence has shown free radicals or reactive oxygen species (ROS) to play an important role in the initiation and progression of cancer. Many radical scavengers have also been found to help reduce the attacks by these ROS. Interestingly, the ROS scavengers that have been
High Squalene Epoxidase in Tumors Predicts Worse Survival in Patients With Hepatocellular Carcinoma: Integrated Bioinformatic Analysis on NAFLD and HCC.
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This study aimed to identify candidate biomarkers for predicting outcomes in nonalcoholic fatty liver disease (NAFLD) and hepatocellular carcinoma (HCC). Using Gene Expression Omnibus and The Cancer Genome Atlas (TCGA) databases, we identified common upregulated differential expressed genes (DEGs)
The shape of human squalene epoxidase expands the arsenal against cancer.
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Squalene epoxidase (also known as squalene monooxygenase, EC 1.14.99.7) is a key rate-limiting enzyme in cholesterol biosynthesis. Anil Padyana and colleagues report the long awaited structure of human squalene epoxidase (SQLE). They solved the crystal structure of the catalytic domain of human SQLE
Squalene synthase, a determinant of Raft-associated cholesterol and modulator of cancer cell proliferation.
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Several cues for cell proliferation, migration, and survival are transmitted through lipid rafts, membrane microdomains enriched in sphingolipids and cholesterol. Cells obtain cholesterol from the circulation but can also synthesize cholesterol de novo through the mevalonate/isoprenoid pathway. This
Potentiation by squalene of the cytotoxicity of anticancer agents against cultured mammalian cells and murine tumor.
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Squalene (SQ) was examined for ability to potentiate the cytotoxicity and antitumor activity of anticancer agents. The dose-response curves of cell survival of cultured HeLa or V79 cells in the presence of various anticancer agents [adriamycin (ADM), 5-fluorouracil (5-FU), bleomycin (BLM) and
Circulating Lipoproteins: A Trojan Horse Guiding Squalenoylated Drugs to LDL-Accumulating Cancer Cells.
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Selective delivery of anticancer drugs to rapidly growing cancer cells can be achieved by taking advantage of their high receptor-mediated uptake of low-density lipoproteins (LDLs). Indeed, we have recently discovered that nanoparticles made of the squalene derivative of the anticancer agent
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