کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10738080 | 1046682 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nitric oxide counteracts the hyperoxia-induced proliferation and proinflammatory responses of mouse astrocytes
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کلمات کلیدی
PGE2PCNAastrocyte conditioned mediumACMGFAPAstrocytes - آستروسیتProliferating Cell Nuclear Antigen - آنتیژن هسته ای تکثیر سلولیApoe - آپوapolipoprotein E - آپولیپوپروتئین Eapolipoprotein J - آپولیپوپروتئین Jinflammation - التهاب( توروم) Oxygen - اکسیژنCNS - دستگاه عصبی مرکزیFree radicals - رادیکال آزادcentral nervous system - سیستم عصبی مرکزیNitric oxide - نیتریک اکسیدHyperoxia - هیپوکسیاGlial fibrillary acidic protein - پروتئین اسیدی فیبریلاسیون گلایالProstaglandin E2 - پروستاگلاندین E2
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
سالمندی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Preclinical studies in the premature baboon evaluating the efficacy and potential toxicity of inhaled nitric oxide indicated a significant effect on astrocyte area density, suggesting phenotypic and functional changes in astrocytes upon exposure to nitric oxide. However, the effects of nitric oxide and oxygen, the two major therapeutic gases utilized in neonatal intensive care, on astrocyte morphology and function remain vastly unknown. Herein, we report that exposure of mouse neonatal cortical astrocytes to hyperoxia results in a proinflammatory phenotype and increase in proliferation without significant changes in cellular morphology or levels of intermediate filament proteins. The proinflammatory phenotype was evident by a significant increase in cellular levels of cyclooxygenase-2 and a concomitant increase in prostaglandin E2 secretion, a decline in the intracellular and secreted levels of apolipoprotein E, and a significant increase in the intracellular levels of clusterin. This proinflammatory phenotype was not evident upon simultaneous exposure to hyperoxia and nitric oxide. These results suggest that exposure to nitric oxide in the setting of hyperoxia confers unrecognized beneficial effects by suppressing astrocytic inflammation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Free Radical Biology and Medicine - Volume 51, Issue 2, 15 July 2011, Pages 474-479
Journal: Free Radical Biology and Medicine - Volume 51, Issue 2, 15 July 2011, Pages 474-479
نویسندگان
Christie J. Bruno, Todd M. Greco, Harry Ischiropoulos,