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1988-01-01
Zarain-Herzberg, A., Fliegel, Larry, MacLennan, D. H.
We have isolated two overlapping 17-kilobase (kb) genomic clones which, together, encode the rabbit fasttwitch skeletal muscle calsequestrin. The calsequestrin gene is 8.6 kb in length and consists of 11 exons. Sl nuclease protection and primer extension analyses position the transcription...
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The na+/H+ exchanger (NHE1) as a novel co-adjuvant target in paclitaxel therapy of triple-negative breast cancer cells
Download2015-01-01
Amith, Schammim Ray, Wilkinson, Jodi Marie, Baksh, Shairaz, Fliegel, Larry
Dysregulation of Na+/H+ exchanger isoform one (NHE1) activity is a hallmark of cells undergoing tumorigenesis and metastasis, the leading cause of patient mortality. The acidic tumor microenvironment is thought to facilitate the development of resistance to chemotherapy drugs and to promote...
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2016-01-01
Amith, Schammim Ray, Fliegel, Larry
Introduction: Triple-negative breast cancer, in which cells lack the expression of estrogen, progesterone, and human epidermal growth factor 2 receptors, is a clinical subtype of breast cancer commonly associated with poor prognosis. It tends to be aggressively metastatic with a high recurrence...
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The Na+/H+ exchanger potentiates growth and retinoic acid induced differentiation of embryonal carcinoma cells
Download1997-01-01
Wang, Huayan, Singh, Dyal, Fliegel, Larry
The Na+/H+exchanger is a ubiquitous plasma membrane protein that is responsible for pH regulation and is activated by growth factors. We examined the role of the Na+/H+ exchanger in cell growth and differentiation. Treatment of P19 cells with the Na+/H+ exchanger inhibitor Hoe 694 eliminated...
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2002-01-01
Li, Xiuju J., Misik, Angelika J., Rieder, Carmen V., Solaro, R. John, Lowen, Anice, Fliegel, Larry
In this paper we examine the role of thyroid hormone in regulating expression of the Na+/H+ exchanger. Thyroid hormone has been reported to regulate the activity of the Na+/H+ exchanger messenger RNA in some cell types. Treatment of cardiac myocytes with 3,5′,3′-triiodothyronine results in an...
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Transmembrane segment XI of the na+/H+ antiporter of S. pombe is a critical part of the ion translocation pore
Download2017-01-01
Dutta, Debajyoti, Shin, Kyungsoo, Rainey, Jan K., Fliegel, Larry
The Na+/H+ exchanger of the plasma membrane of S. pombe (SpNHE1) removes intracellular sodium in exchange for an extracellular proton. We examined the structure and functional role of amino acids 360–393 of putative transmembrane (TM) segment XI of SpNHE1. Structural analysis suggested that it...
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Trophic factor withdrawal: p38 mitogen-activated protein kinase activates NHE1, which induces intracellular alkalinization
Download2001-01-01
Khaled, Annette R., Moor, Andrea N., Li, Aiqun Q., Kim, Kyungjae, Ferris, Douglas K., Muegge, Kathrin, Fisher, Robert J., Fliegel, Larry, Durum, Scott K.
Trophic factor withdrawal induces cell death by mechanisms that are incompletely understood. Previously we reported that withdrawal of interleukin-7 (IL-7) or IL-3 produced a rapid intracellular alkalinization, disrupting mitochondrial metabolism and activating the death protein Bax. We now...