生物标志物
高磷酸化
医学
疾病
发病机制
氧化应激
内科学
τ蛋白
阿尔茨海默病
免疫印迹
肿瘤科
磷酸化
癌症研究
生物
基因
细胞生物学
生物化学
作者
Kumari Shiwani,Ambica Singh,Abhinay Kumar Singh,Yad Ram Yadav,Swati Bajpai,Pramod Kumar,Ashish Datt Upadhyay,Shashank Shekhar,Sadanand Dwivedi,Aparajit Ballav Dey,Sharmistha Dey
摘要
Background: Alzheimer’s disease (AD) is the progressive brain disorder which degenerates brain cells connection and causes memory loss. Although AD is irreversible, it is not impossible to arrest or slow down the progression of the disease. However, this would only be possible if the disease is diagnosed at an early stage, and early diagnosis requires clear understanding of the pathogenesis at molecular level. Overactivity of GSK-3β and p53 accounts for tau hyperphosphorylation and the formation of amyloid-β plaques. Objective: Here, we explored GSK-3β and p53 as blood-based biomarkers for early detection of AD. Methods: The levels of GSK-3β, p53, and their phosphorylated states were measured using surface plasmon resonance and verified using western blot in serum from AD, mild cognitive impairment (MCI), and geriatric-control (GC) subjects. The neurotoxic SH-SY5Y cell line was treated with antioxidant Emblica Officinalis (EO) for rescue effect. Results: GSK-3β, p53, and their phosphorylated states were significantly over expressed (p > 0.001) in AD and MCI compared to GC and can differentiate AD and MCI from GC. The expression level of GSK-3β and p53 proteins were found to be downregulated in a dose-dependent manner after the treatment with EO in amyloid-b-induced neurotoxic cells. Conclusion: These proteins can serve as potential blood markers for the diagnosis of AD and EO can suppress their level. This work has translational value and clinical utility in the future.
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