Epistatic and Functional Interactions of Catechol-O-Methyltransferase (COMT) and AKT1 on Neuregulin1-ErbB Signaling in Cell Models

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Epistatic and Functional Interactions of Catechol-O-Methyltransferase (COMT) and AKT1 on Neuregulin1-ErbB Signaling in Cell Models

BACKGROUND Neuregulin1 (NRG1)-ErbB signaling has been implicated in the pathogenesis of cancer and schizophrenia. We have previously reported that NRG1-stimulated migration of B lymphoblasts is PI3K-AKT1dependent and impaired in patients with schizophrenia and significantly linked to the catechol-o-methyltransferase (COMT) Val108/158Met functional polymorphism. METHODOLOGY/PRINCIPAL FINDINGS ...

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Hypnotizability and Catechol-O-Methyltransferase (COMT) polymorphysms in Italians

Higher brain dopamine content depending on lower activity of Catechol-O-Methyltransferase (COMT) in subjects with high hypnotizability scores (highs) has been considered responsible for their attentional characteristics. However, the results of the previous genetic studies on association between hypnotizability and the COMT single nucleotide polymorphism (SNP) rs4680 (Val(158)Met) were inconsis...

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Complex estrogenic regulation of catechol-O-methyltransferase (COMT) in rats.

Catechol-O-methyltransferase (COMT) activity depends on gender, age and physiological status suggesting that estrogen may regulate COMT activity. In fact, estrogens down-regulate the function of COMT promoters in cell cultures. On the other hand, COMT may play an important role in estrogen-induced cancers due to its ability to inactivate estrogen metabolites and thereby lowering the levels of t...

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Catechol-O-methyltransferase (COMT)-mediated metabolism of catechol estrogens: comparison of wild-type and variant COMT isoforms.

The oxidative metabolism of 17beta-estradiol (E2) and estrone (E1) to catechol estrogens (2-OHE2, 4-OHE2, 2-OHE1, and 4-OHE1) and estrogen quinones has been postulated to be a factor in mammary carcinogenesis. Catechol-O-methyltransferase (COMT) catalyzes the methylation of catechol estrogens to methoxy estrogens, which simultaneously lowers the potential for DNA damage and increases the concen...

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Neuregulin1-ErbB Signaling in Doxorubicin-Induced Cardiotoxicity

This chapter will review basic and clinical findings regarding the cardioprotective role of Neuregulin1-ErbB signaling against the cardiotoxicity of doxorubicin, a widely used chemotherapeutic agent. In 2001, The New England Journal of Medicine published the results from clinical trials in breast cancer patients using Trastuzumab, a monoclonal antibody that blocks the ErbB2 receptor. These stud...

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ژورنال

عنوان ژورنال: PLoS ONE

سال: 2010

ISSN: 1932-6203

DOI: 10.1371/journal.pone.0010789