کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10870086 | 1073988 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of the interactions between β-amyloid peptide and the membranes of human SK-N-SH cells
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Interaction of β-amyloid peptide (Aβ) with cell membranes is thought to be an initial step in Alzheimer's disease (AD). However, some data are controversial and the underlying mechanisms remain unclear. In this report, two populations of Aβ were found in human SK-N-SH neuroblastoma cells. Notably, one of the Aβ populations was tightly inserted into the plasma membrane whilst the other was only peripherally associated with it. Here we show that reducing membrane cholesterol decreased the number of membrane-embedded Aβs and increased the number of membrane-attached Aβs. We also found that cholesterol depletion inhibited Aβ degradation and exacerbated Aβ-mediated cytotoxicity. Our detailed and direct observations provide specific insights into the mechanism of Aβ membrane-associated toxicity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 589, Issue 15, 8 July 2015, Pages 1929-1934
Journal: FEBS Letters - Volume 589, Issue 15, 8 July 2015, Pages 1929-1934
نویسندگان
Ruiqin Liu, Tian Tian, Jianping Jia,