Sialic acid moiety of apolipoprotein E and its impact on the formation of lipoprotein particles in human cerebrospinal fluid

2009 ◽  
Vol 402 (1-2) ◽  
pp. 61-66 ◽  
Author(s):  
Kenji Kawasaki ◽  
Naoko Ogiwara ◽  
Mitsutoshi Sugano ◽  
Nobuo Okumura ◽  
Kazuyoshi Yamauchi
1998 ◽  
Vol 39 (12) ◽  
pp. 2443-2451
Author(s):  
Kathleen S. Montine ◽  
Casey N. Bassett ◽  
Joyce J. Ou ◽  
William R. Markesbery ◽  
Larry L. Swift ◽  
...  

2015 ◽  
Vol 69 (8) ◽  
Author(s):  
Ilona Bakai-Bereczki ◽  
Mihály Herczeg ◽  
Bernadett György ◽  
Lieve Naesens ◽  
Pál Herczegh

AbstractIn order to promote attachment of the ristocetin aglycone molecule to the surface of the influenza virus, the aglycone was derivatized with a hemagglutinin ligand sialic acid moiety using a click reaction. The sialoristocetin derivative exhibited somewhat lower anti-influenza virus activity than ristocetin and aglycoristocetin.


2021 ◽  
Vol 22 (22) ◽  
pp. 12338
Author(s):  
Jianrong Wu ◽  
Miaosen Wu ◽  
Hongtao Zhang ◽  
Xiaobei Zhan ◽  
Nian Wu

Oligomannuronic acid (MOS) from seaweed has antioxidant and anti-inflammatory activities. In this study, MOS was activated at the terminal to obtain three different graft complexes modified with sialic acid moiety (MOS-Sia). The results show that MOS-Sia addition can reduce the β-structure formation of Aβ42, and the binding effect of MOS-Sia3 is more obvious. MOS-Sia conjugates also have a better complexing effect with Ca2+ while reducing the formation of Aβ42 oligomers in solutions. MOS-Sia3 (25–50 μg/mL) can effectively inhibit the activation state of BV-2 cells stimulated by Aβ42, whereas a higher dose of MOS-Sia3 (>50 μg/mL) can inhibit the proliferation of BV-2 cells to a certain extent. A lower dose of MOS-Sia3 can also inhibit the expression of IL-1β, IL-6, TNF-α, and other proinflammatory factors in BV-2 cells induced by Aβ42 activation. In the future, the MOS-Sia3 conjugate can be used to treat Alzheimer’s disease.


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