Searching for just a few words should be enough to get started. If you need to make more complex queries, use the tips below to guide you.
Article type: Research Article
Authors: Mendes, Fúlvio R.a; b; 2 | Leclerc, Jenna L.a; c; 1; 2 | Liu, Leia | Kamat, Pradip K.a | Naziripour, Arasha | Hernandez, Damiana | Li, Chrisa | Ahmad, Abdullah S.a | Doré, Sylvaina; c; *
Affiliations: [a] Department of Anesthesiology, University of Florida College of Medicine, Gainesville, FL, USA | [b] Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Bernardo do Campo, Brazil | [c] Department of Neuroscience, Neurology, Psychiatry, and Center for Translational Research in Neurodegenerative Disease, University of Florida College of Medicine, Gainesville, FL, USA
Correspondence: [] Correspondence to: Sylvain Doré, 1275 Center Drive, Gainesville, FL 32610, USA. Tel.: +1 352 273 9663; E-mail: [email protected].
Note: [1] Current affiliation: Oregon Health & Science University, Department of Anesthesiology and Perioperative Medicine, Portland, OR, USA.
Note: [2] These authors contributed equally to this work.
Abstract: Background:Neuroinflammation has been recognized as an important factor in the pathogenesis of Alzheimer’s disease (AD). One of the most recognized pathways in mediating neuroinflammation is the prostaglandin E2-EP1 receptor pathway. Objective:Here, we examined the efficacy of the selective EP1 antagonist ONO-8713 in limiting amyloid-β (Aβ), lesion volumes, and behavioral indexes in AD mouse models after ischemic stroke. Methods:Transgenic APP/PS1, 3xTgAD, and wildtype (WT) mice were subjected to permanent distal middle cerebral artery occlusion (pdMCAO) and sham surgeries. Functional outcomes, memory, anatomical outcomes, and Aβ concentrations were assessed 14 days after surgery. Results:pdMCAO resulted in significant deterioration in functional and anatomical outcomes in the transgenic mice compared with the WT mice. No relevant differences were observed in the behavioral tests when comparing the ONO-8713 and vehicle-treated groups. Significantly lower cavitation (p = 0.0373) and percent tissue loss (p = 0.0247) were observed in APP/PS1 + ONO-8713 mice compared with the WT + ONO-8713 mice. However, the percent tissue injury was significantly higher in APP/PS1 + ONO-8713 mice compared with the WT + ONO-8713 group (p = 0.0373). Percent tissue loss was also significantly lower in the 3xTgAD + ONO-8713 mice than in the WT + ONO-8713 mice (p = 0.0185). ONO-8713 treatment also attenuated cortical microgliosis in APP/PS1 mice as compared with the vehicle (p = 0.0079); however, no differences were observed in astrogliosis across the groups. Finally, APP/PS1 mice presented with characteristic Aβ load in the cortex while 3xTgAD mice exhibited very low Aβ levels. Conclusion:In conclusion, under the experimental conditions, EP1 receptor antagonist ONO-8713 showed modest benefits in anatomical outcomes after stroke, mainly in APP/PS1 mice.
Keywords: Alzheimer’s disease, amyloid-β, EP1 receptor, ischemia, permanent middle cerebral artery occlusion, prostaglandin E2, transgenic mice
DOI: 10.3233/JAD-191069
Journal: Journal of Alzheimer's Disease, vol. 74, no. 1, pp. 173-187, 2020
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
USA
Tel: +1 703 830 6300
Fax: +1 703 830 2300
[email protected]
For editorial issues, like the status of your submitted paper or proposals, write to [email protected]
IOS Press
Nieuwe Hemweg 6B
1013 BG Amsterdam
The Netherlands
Tel: +31 20 688 3355
Fax: +31 20 687 0091
[email protected]
For editorial issues, permissions, book requests, submissions and proceedings, contact the Amsterdam office [email protected]
Inspirees International (China Office)
Ciyunsi Beili 207(CapitaLand), Bld 1, 7-901
100025, Beijing
China
Free service line: 400 661 8717
Fax: +86 10 8446 7947
[email protected]
For editorial issues, like the status of your submitted paper or proposals, write to [email protected]
如果您在出版方面需要帮助或有任何建, 件至: [email protected]