l ascorbic acid/breast neoplasms

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L-Ascorbic Acid Inhibits Breast Cancer Growth by Inducing IRE/JNK/CHOP-Related Endoplasmic Reticulum Stress-Mediated p62/SQSTM1 Accumulation in the Nucleus.

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Anticancer effects of L-ascorbic acid (Vitamin C, L-AA) have been reported in various types of cancers. L-AA intake reduces breast cancer recurrence and mortality; however, the role of L-AA in the treatment of breast cancer remains poorly understood. In this study, we investigated the effect and

Antitumor and antiviral activities of 4-substituted 1,2,3-triazolyl-2,3-dibenzyl-L-ascorbic acid derivatives.

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Two series of 6-(1,2,3-triazolyl)-2,3-dibenzyl-l-ascorbic acid derivatives with the hydroxyethylene (8a-8u) and ethylidene linkers (10c-10p) were synthesized and evaluated for their antiproliferative activity against seven malignant tumor cell lines and antiviral activity against a broad range of

Ascorbic acid and cell survival of adriamycin resistant and sensitive MCF-7 breast tumor cells.

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The ability of human cells to regenerate ascorbic acid from dehydroascorbate is partially dependent on the glutathione redox status of the cell and the relative activity of dehydroascorbate reductases. Mammalian dehydroascorbate reductase activity is associated with two proteins known as

SVCT-2 in breast cancer acts as an indicator for L-ascorbate treatment.

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L-ascorbate (L-ascorbic acid, vitamin C) clearly has an inhibitory effect on cancer cells. However, the mechanism underlying differential sensitivity of cancer cells from same tissue to L-ascorbate is yet to be clarified. Here, we demonstrate that L-ascorbate has a selective killing effect, which is

Thioltransferase overexpression increases resistance of MCF-7 cells to adriamycin.

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Thioltransferase, a small redox protein with thiol-disulfide oxidoreductase and dehydroascorbate reductase activities, has been reported to be expressed at higher levels in Adriamycin-resistant MCF-7 human breast tumor cells (MCF-7 ADR(R)) when compared with Adriamycin sensitive MCF-7 WT (MCF-7 WT)

Permselective glucose sensing with GLUT1-rich cancer cell membranes.

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Enzymatic blood glucose detection with selectivity is one of the most important conundrums, because human blood contains many components that can hinder enzyme-substrate reactions. Meanwhile, cancer cells express much higher levels of glucose transporter-1 on their cell membrane to selectively and

Radiofluorinated carbohydrates for positron emission tomography.

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2-Deoxy-2-[(18)F]fluoro-D-glucose (2-(18)FDG) has represented radiofluorinated carbohydrates as the most successful tracer for positron emission tomography (PET). 2-(18)FDG uptake depends on glucose metabolism, which is related to a disease progression. 2-(18)FDG has been widely used in oncology,

Causes and Consequences of A Glutamine Induced Normoxic HIF1 Activity for the Tumor Metabolism.

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The transcription factor hypoxia-inducible factor 1 (HIF1) is the crucial regulator of genes that are involved in metabolism under hypoxic conditions, but information regarding the transcriptional activity of HIF1 in normoxic metabolism is limited. Different tumor cells were treated under normoxic

Synthesis and anticancer activity of γ-(triazolyl ethylidene)butenolides and polyfunctional pyrrolinones.

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A series of novel γ-(triazolyl ethylidene)butenolides (4-23) were prepared from commercially available l-ascorbic acid in good yields. These butenolides on reaction with ethanolic ammonia/amines led to formation of respective 5-hydroxy pyrrolinones (24-33). The two of these pyrrolinones on

Au-Ag@Au Hollow Nanostructure with Enhanced Chemical Stability and Improved Photothermal Transduction Efficiency for Cancer Treatment.

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Despite the fact that Au-Ag hollow nanoparticles (HNPs) have gained much attention as ablation agents for photothermal therapy, the instability of the Ag element limits their applications. Herein, excess Au atoms were deposited on the surface of a Au-Ag HNP by improving the reduction power of

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