کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10903825 | 1086529 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Induction of apoptosis in Caco-2 cells by exogenously added O2â produced by a nanodevice
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کلمات کلیدی
PBSNanodeviceCytochrome b558Annexin V-FITCCaco-23-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide - 3- (4،5-dimethyl-2-thiazolyl) -2،5-difenyl-2H-tetrazolium bromideMTT - MTTO2− - O2-ROS - ROSOxidative stress - تنش اکسیداتیوminimum essential medium - حداقل حداقل مورد نیازApoptosis - خزان یاختهایSOD - سدSuperoxide - سوپر اکسیدSuperoxide dismutase - سوکسوکس دیسموتازPhosphatidylserine - فسفاتیدیلسرینMEM - مامانPhosphate-buffered saline - محلول نمک فسفات با خاصیت بافریReactive oxygen species - گونههای فعال اکسیژن
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
تحقیقات سرطان
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effects of reactive oxygen species on cells have attracted considerable attention in relation to oxidative stress and related disorders. Superoxide (O2â) is the primary reactive oxygen species formed in animals as a byproduct or purposeful product of enzymes. We recently established an O2â-generating nanodevice that produces O2â continuously even in culture medium, by improving an original nanodevice. The new nanodevice, named Device II, efficiently induced cell death in Caco-2 cells in a time- and dose-dependent manner. Catalase largely recovered the cell viability, while superoxide dismutase rather lowered the viability. Flow cytometric and fluorescence microscopic analyses revealed that phosphatidylserine was exposed on the cells and that caspase-3 was activated in the cells after treatment with Device II. These findings indicated that exogenously added O2â caused apoptosis in Caco-2 cells through its derivative H2O2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Cell Research - Volume 331, Issue 2, 15 February 2015, Pages 408-415
Journal: Experimental Cell Research - Volume 331, Issue 2, 15 February 2015, Pages 408-415
نویسندگان
Yuki Yoshioka, Hironosuke Fujibayashi, Kenji Kameda, Daijiro Kan, Shigenobu Tone, Minoru Tamura,