کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10821743 | 1061509 | 2012 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evidence for phosphatidylinositol-3-OH-kinase (PI3-kinase) involvement in Cd-mediated oxidative effects on hemocytes of mussels
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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![عکس صفحه اول مقاله: Evidence for phosphatidylinositol-3-OH-kinase (PI3-kinase) involvement in Cd-mediated oxidative effects on hemocytes of mussels Evidence for phosphatidylinositol-3-OH-kinase (PI3-kinase) involvement in Cd-mediated oxidative effects on hemocytes of mussels](/preview/png/10821743.png)
چکیده انگلیسی
This study investigated phosphatidylinositol-3-OH-kinase (PI3-kinase) involvement in the induction of cadmium-mediated oxidative effects on hemocytes of mussel Mytilus galloprovincialis. PI3-kinase was investigated with the use of wortmannin, a specific covalent inhibitor of PI3-kinase. Moreover, phorbol-myristate acetate (PMA), a well-known protein kinase C (PKC)-mediated NADPH oxidase and nitric oxide (NO) synthase stimulator, was also used for elucidating PI3-kinase involvement during the respiratory burst process in challenge hemocytes. According to the results, cells pre-treated with non-toxic concentrations of wortmannin (1 and/or 50 nM, as revealed by neutral red retention assay) for 15 min, showed a significant attenuation of cadmium ability (at concentration of 50 μM) to promote cell death, superoxide anion (O2â) production, NO generation and lipid peroxidation (in terms of malondialdehyde equivalents). On the other hand, wortmannin-treated cells showed a significant attenuation of PMA ability to induce NO generation but not O2â production. These findings reveal that PI3-kinase could lead to a PKC-independent induction of NO synthase activity in cells faced with pro-oxidants, such as cadmium, while its activation could be fundamental for the regulation of NAPDH oxidase activity, probably through a PKC-dependent signaling pathway.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology - Volume 155, Issue 4, May 2012, Pages 587-593
Journal: Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology - Volume 155, Issue 4, May 2012, Pages 587-593
نویسندگان
Christos Vouras, Stefanos Dailianis,