malic enzyme/bröstcancer

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Kinetic mechanism of the cytosolic malic enzyme from human breast cancer cell line.

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The kinetic mechanism of the cytosolic NADP(+)-dependent malic enzyme from cultured human breast cancer cell line was studied by steady-state kinetics. In the direction of oxidative decarboxylation, the initial-velocity and product-inhibition studies indicate that the enzyme reaction follows a

Purification and characterization of the cytosolic NADP(+)-dependent malic enzyme from human breast cancer cell line.

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Cytosolic NADP(+)-dependent malic enzyme from a cultured human breast cancer cell line was purified to near homogeneity by two highly efficient chromatography systems: Pharmacia-LKB Q-Sepharose anion-exchange chromatography and adenosine-2',5'-bisphosphate-agarose affinity chromatography. The

Nonidentity of the cDNA sequence of human breast cancer cell malic enzyme to that from the normal human cell.

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A cDNA coding for human breast cancer cell cytosolic NADP(+)-dependent malic enzyme was obtained. This cDNA is composed of a length of 2084 base pairs, with 1698 base pairs coding for 565 amino acid residues and a length of 386 base pairs representing a 3'-noncoding region. Comparing this nucleotide

Malic Enzyme 1 Indicates Worse Prognosis in Breast Cancer and Promotes Metastasis by Manipulating Reactive Oxygen Species

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Purpose: Malic enzyme 1 (ME1) catalyzes malate to pyruvate and thus promotes glycolysis. Its function in breast cancer remains to be fully clarified. The aim of this work was to investigate the prognostic value of ME1 and its possible

Identification of mRNAs differentially expressed in quiescence or in late G1 phase of the cell cycle in human breast cancer cells by using the differential display method.

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BACKGROUND The decision for a cell to enter the DNA synthesis (S) phase of the cell cycle or to arrest in quiescence is likely to be determined by genes expressed in the late G1 phase, at the restriction point. Loss of restriction point control is associated with malignant cellular transformation

Epigenetic silencing of triple negative breast cancer hallmarks by Withaferin A.

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Triple negative breast cancer (TNBC) is characterized by poor prognosis and a DNA hypomethylation profile. Withaferin A (WA) is a plant derived steroidal lactone which holds promise as a therapeutic agent for treatment of breast cancer (BC). We determined genome-wide DNA methylation changes in

Estradiol stimulates the biosynthetic pathways of breast cancer cells: detection by metabolic flux analysis.

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Selective estrogen receptor (ER) modulators are highly successful breast cancer therapies, but they are not effective in patients with ER negative and selective estrogen receptor modulator (SERM)-resistant tumors. Understanding the mechanisms of estrogen-stimulated proliferation may provide a route

Identification of genes with altered expression in medullary breast cancer vs. ductal breast cancer and normal breast epithelia.

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Medullary breast cancer (MCB) is a morphologically and biologically distinct subtype that, despite cytologically highly malignant characteristics, has a favorable prognosis compared to the more common infiltrating ductal breast carcinoma. MCB metastasizes less frequently, which has been attributed

An RNA interference screen identifies metabolic regulators NR1D1 and PBP as novel survival factors for breast cancer cells with the ERBB2 signature.

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Overexpression of the adverse prognostic marker ERBB2 occurs in 30% of breast cancers; however, therapies targeting this gene have not proved to be as effective as was initially hoped. Transcriptional profiling meta-analyses have shown that there are approximately 150 genes co-overexpressed with

ME1 promotes basal-like breast cancer progression and associates with poor prognosis.

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Basal-like breast cancer (BLBC) is associated with a poor clinical outcome due to the few treatment options and absence of effective targeted agents. Here, we show that malic enzyme 1 (ME1) is dramatically upregulated in BLBC due to ME1 copy number amplification. ME1 expression increases glucose

Dietary soy protein induces hepatic lipogenic enzyme gene expression while suppressing hepatosteatosis in obese female Zucker rats bearing DMBA-initiated mammary tumors.

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Fatty liver is associated with obesity and breast cancer. We used an obese rat model of mammary cancer to examine whether hepatosteatosis is modifiable by diet and associated with altered expression of hepatic lipogenic enzyme genes, thyroid hormone system genes and cholesterol metabolism-related

Inhibition of human cancer cell growth by periodate-oxidized 3-aminopyridine adenine dinucleotide phosphate.

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1. Periodate-oxidized 3-aminopyridine-adenine dinucleotide phosphate inhibited the proliferation of oral epithelium cancer and breast cancer cell lines. 2. The fast growing less differentiated embryonic kidney cell was more affected by the reagent then the embryonic lung fibroblast cell. 3.

Human Spot 14 protein is a p53-dependent transcriptional coactivator via the recruitment of thyroid receptor and Zac1.

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Spot 14 is an acidic homodimeric protein with no sequence similarity to other mammalian gene products. Its biochemical function remains unclear. Recent studies have shown that the human Spot 14 locus is in the chromosomal region 11q13 and is frequently amplified in breast cancers, suggesting that it

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