arginine/bröstcancer

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L-arginine/5-fluorouracil combination treatment approaches cells selectively: Rescuing endothelial cells while killing MDA-MB-468 breast cancer cells.

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Reducing the adverse effects of chemotherapy on normal cells such as endothelial cells is a determinant factor of treatment success especially in pregnant women. In this regard, modulatory effect of L-arginine on various cancers is still a controversial topic in cancer therapy. So, this study aimed

Major surgery diminishes systemic arginine availability and suppresses nitric oxide response to feeding in patients with early stage breast cancer.

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OBJECTIVE Plasma arginine (ARG) levels are reduced in breast cancer, suggesting diminished systemic ARG availability. ARG and its product nitric oxide (NO) are important in early postoperative recovery due to its roles in immune function and wound healing. It remains unclear whether major surgery

RNA binding protein RALY promotes Protein Arginine Methyltransferase 1 alternatively spliced isoform v2 relative expression and metastatic potential in breast cancer cells.

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Aberrant expression of Protein Arginine Methyltransferases (PRMTs) has been observed in several cancer types, including breast cancer. We previously reported that the PRMT1v2 isoform, which is generated through inclusion of alternative exon 2, is overexpressed in breast cancer cells and promotes

Stimulation of human breast cancers by dietary L-arginine.

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1. The amino acid L-arginine has been shown to enhance immune mechanisms and inhibit tumour growth in experimental animals, but although many of the immunological effects of arginine have been reproduced in man there have been few studies of its effects on human tumours. In this study the effects of

The effect of N(G)-monomethyl-L-arginine and tamoxifen on nitric oxide production in breast cancer cells stimulated by oestrogen and progesterone.

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OBJECTIVE To examine the capacity of oestrogen, or progesterone, or both to elicit the release of nitric oxide (NO) from T47D breast cancer cells in vitro. METHODS Prospective, longitudinal, controlled in vitro experiment. METHODS University Medical School, United Kingdom. MATERIAL AND

Dietary supplementation with L-arginine in patients with breast cancer (> 4 cm) receiving multimodality treatment: report of a feasibility study.

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L-Arginine has been shown, in human breast cancers, to increase protein synthesis and the number of cells in the growth phase of the cell cycle. L-Arginine, therefore, may potentiate the response of breast cancers to cell cycle-specific cytotoxic agents. This phase II pilot study assessed the

Inflammatory mediators stimulate arginine transport and arginine-derived nitric oxide production in a murine breast cancer cell line.

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Inflammatory mediators stimulate arginine-derived nitric oxide (NO) production in a variety of cells. The purpose of this study was to determine if the inflammatory mediators, endotoxin (LPS) and interferon gamma (IFN), stimulate arginine transport and nitric oxide production in a murine breast

Growth arrest and morphological change of human breast cancer cells by dibutyryl cyclic AMP and L-arginine.

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The growth in vitro of human breast cancer cells, line MCF-7, was inhibited by a daily supplement of L-arginine (1 milligram per milliliter). Arginine acted synergistically with dibutyryl adenosine 3',5'-monophosphate (cyclic AMP) (10(-6) molar) to enhance the growth inhibitory effect: the cell

The therapy of gefitinib towards breast cancer partially through reversing breast cancer biomarker arginine.

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BACKGROUND Breast cancer remains the leading reason of cancer death among women worldwide, and gefitinib is the efficient drug for breast cancer. OBJECTIVE To use targeted metabolomics method to elucidate the therapeutic mechanism of gefitinib through profiling the amino acids. METHODS Healthy women

Metabolic relevance for N-hydroxy L-arginine reduction in estrogen-negative breast cancer cells.

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We had shown Nw-hydroxy-L-arginine (NOHA) as a promising blood-based biomarker for estrogen-receptor-negative (ER-) breast cancer (BC) that differentiates ER- BC based on grade and molecular phenotype. In this in vitro study, we assessed the metabolic relevance for ER- BC-specific NOHA modulation

Assessing N w-hydroxy-L-arginine applicability as a novel ethnic specific estrogen-negative breast cancer marker.

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In our prior study we identified N w-hydroxy-L-arginine (NOHA) as a simple, yet sensitive indicator for estrogen negative (ER-) breast cancer early-prognosis, but not estrogen positive (ER+), and to offer ethnic selectivity for ER- detection. However, the ability of NOHA to assess ER- breast tumor

Effectiveness of Small Interfering RNA Delivery via Arginine-Rich Polyethylenimine-Based Polyplex in Metastatic and Doxorubicin-Resistant Breast Cancer Cells.

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Poor cellular uptake, rapid degradation in the presence of serum, and inefficient transfection are some of the major barriers in achieving therapeutic efficacy of naked small interfering RNAs (siRNAs). We investigated the efficacy of the polyplex formulated using our synthesized polymer,

NG-nitro-L-arginine methyl ester inhibits bone metastasis after modified intracardiac injection of human breast cancer cells in a nude mouse model.

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We investigated the effects of NG-nitro-L-arginine-methyl ester (L-NAME), a nitric oxide synthase (NOS) inhibitor, on bone metastasis of human breast cancer, MDA-231 cells. Tumor cells (2 x 10(5) cells in 0.2 ml of phosphate-buffered saline; PBS) were injected through the diaphragm into the left

N w-hydroxy-L-arginine as a novel ethnic specific indicator of estrogen-negative breast cancer.

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As a heterogeneous disease, breast cancer can be divided into distinct subtypes. Among the two major subsets of estrogen receptor-negative (ER-) and ER-positive (ER+) tumors, the ER- is a more aggressive subtype, more difficult to treat, has greater ethnic disparity concerns, worse prognosis, and

Role of p53 codon 72 arginine allele in cell survival in vitro and in the clinical outcome of patients with advanced breast cancer.

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BACKGROUND The p53 codon 72 polymorphism, which results in either an arginine or proline residue, plays a different role in vitro and in vivo in cell survival and drug resistance. We verified, in vitro, the impact of the arginine allele on cell survival under normoxia and hypoxia, and investigated

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