Abstract
Background: We recently reported elevated cerebrospinal fluid (CSF) levels of soluble tumor necrosis factor (TNF) receptors and TNF-α converting enzyme (TACE) activity in subjects with Alzheimer’s disease (AD) in a Caucasian population. The TNF receptor-mediated signaling pathway contributes to the production of Aβ and the subsequent cytotoxicity that is observed in AD brains. However, whether the plasma levels of soluble TNF receptors (sTNFRs) are changed is still unclear in AD patients of Han descent.
Methods: In the present study, we analyzed the plasma sTNFR levels using commercially available immunoassay kits in 76 AD patients and 40 age- and sex-matched control subjects of Northern Han Chinese descent. Furthermore, the TACE activity was measured using a solution-based assay containing a fluorescently labeled TACE substrate. Results: AD patients exhibited higher levels of both sTNFR and TACE activity in their plasma compared with age- and sex-matched control subjects. The levels of sTNFR1 strongly correlated with the levels of sTNFR2 (rs =0.526, P<0.001). In addition, the levels of sTNFR1 were significantly correlated with TACE activity (rs = 0.308, P<0.01). Conclusion: These results suggest that sTNFRs and TACE activity might serve as potential peripheral diagnostic candidate biomarkers in AD.Keywords: Alzheimer’s disease, amyloid beta peptides, soluble tumor necrosis factor receptor, tumor necrosis factor converting enzyme
Current Alzheimer Research
Title:Elevated Plasma Levels of Soluble TNFRs and TACE Activity in Alzheimer's Disease Patients of Northern Han Chinese Descent
Volume: 10 Issue: 1
Author(s): Lin Bai, Ning Song, Jintai Yu, Lan Tan, Yong Shen, Junxia Xie and Hong Jiang
Affiliation:
Keywords: Alzheimer’s disease, amyloid beta peptides, soluble tumor necrosis factor receptor, tumor necrosis factor converting enzyme
Abstract: Background: We recently reported elevated cerebrospinal fluid (CSF) levels of soluble tumor necrosis factor (TNF) receptors and TNF-α converting enzyme (TACE) activity in subjects with Alzheimer’s disease (AD) in a Caucasian population. The TNF receptor-mediated signaling pathway contributes to the production of Aβ and the subsequent cytotoxicity that is observed in AD brains. However, whether the plasma levels of soluble TNF receptors (sTNFRs) are changed is still unclear in AD patients of Han descent.
Methods: In the present study, we analyzed the plasma sTNFR levels using commercially available immunoassay kits in 76 AD patients and 40 age- and sex-matched control subjects of Northern Han Chinese descent. Furthermore, the TACE activity was measured using a solution-based assay containing a fluorescently labeled TACE substrate. Results: AD patients exhibited higher levels of both sTNFR and TACE activity in their plasma compared with age- and sex-matched control subjects. The levels of sTNFR1 strongly correlated with the levels of sTNFR2 (rs =0.526, P<0.001). In addition, the levels of sTNFR1 were significantly correlated with TACE activity (rs = 0.308, P<0.01). Conclusion: These results suggest that sTNFRs and TACE activity might serve as potential peripheral diagnostic candidate biomarkers in AD.Export Options
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Cite this article as:
Bai Lin, Song Ning, Yu Jintai, Tan Lan, Shen Yong, Xie Junxia and Jiang Hong, Elevated Plasma Levels of Soluble TNFRs and TACE Activity in Alzheimer's Disease Patients of Northern Han Chinese Descent, Current Alzheimer Research 2013; 10 (1) . https://dx.doi.org/10.2174/1567205011310010008
DOI https://dx.doi.org/10.2174/1567205011310010008 |
Print ISSN 1567-2050 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5828 |
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