کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8434506 | 1546645 | 2018 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pro-apoptotic Bax promotes mesenchymal-epithelial transition by binding to respiratory complex-I and antagonizing the malignant actions of pro-survival Bcl-2 proteins
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کلمات کلیدی
DcfNACComplex-I2′,7′-dichlorofluorescein - 2 '، 7'-dichlorofluoresceinN-acetylcysteine - N-استیل سیستئینROS - ROSmesenchymal-epithelial transition - انتقال مزانشیمال-اپیتلیالEMT - تکنسین فوریتهای پزشکیBcl-2 family - خانواده Bcl-2MET - ملاقات کردRadiation - پرتوEpithelial-mesenchymal transition - گذار اپیتلیال-مزانشیمیReactive 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 plasticity of solid tumors between the epithelial and mesenchymal states critically influences their malignant progression and metastasis. The epithelial-mesenchymal transition (EMT), which supports cancer cell invasion and metastasis, is promoted by pro-survival members (e.g., Bcl-2 and Bcl-XL) of the Bcl-2 protein family, which are well-known key apoptosis regulators. We found that Bcl-w, another pro-survival member, promotes EMT by increasing respiratory complex-I activity and reactive oxygen species (ROS) levels. In contrast, pro-apoptotic Bax facilitates mesenchymal-epithelial transition by binding to complex-I, which inhibits complex-I-induced ROS production. Functional antagonism between pro-survival and pro-apoptotic proteins in regulating tumor plasticity was directly confirmed by co-expressing Bax with Bcl-w or Bcl-XL. Therefore, the balance between the functionally opposing Bcl-2 proteins appears to be a critical determinant of cancer cell phenotypes. We further showed that sub-lethal doses of γ-radiation induced EMT by increasing Bcl-XL and Bcl-w levels and complex-I activity. We propose that Bcl-2 proteins and complex-I are potential targets for preventing tumor progression and the malignant actions of radiotherapy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cancer Letters - Volume 424, 28 June 2018, Pages 127-135
Journal: Cancer Letters - Volume 424, 28 June 2018, Pages 127-135
نویسندگان
Eun Mi Kim, Chan-Hun Jung, Jie-Young Song, Jong Kuk Park, Hong-Duck Um,