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Volumn 21, Issue 13, 2011, Pages 4083-4087

Triazoles as γ-secretase modulators

Author keywords

Abeta lowering; Alzheimer; GSM; Lead optimization; Secretase

Indexed keywords

ALKENE; AMYLOID BETA PROTEIN[1-42]; GAMMA SECRETASE; TRIAZOLE DERIVATIVE;

EID: 79958701021     PISSN: 0960894X     EISSN: 14643405     Source Type: Journal    
DOI: 10.1016/j.bmcl.2011.04.089     Document Type: Article
Times cited : (18)

References (45)
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    • note
    • All GSMs lower Aβ42 selectively over Aβ40, however, some raise the levels of Aβ38 others Aβ37. The consequence of this difference is unknown.
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    • 50 measurements for Aβ40 and Aβ42 were determined using electrochemiluminescent detection of peptides secreted by SH-SY5Y cells stably overexpressing the β-APP C-terminal fragment SPA4CT. All compounds were tested at least twice in independent experiments. Consistent with the profile of γ-secretase modulators, total Aβ peptide levels were constant; selected GSMs were confirmed in a SELDI experiment confirming the appearance of shorter fragments while Aβ42 formation was suppressed. (a)
    • 50 measurements for Aβ40 and Aβ42 were determined using electrochemiluminescent detection of peptides secreted by SH-SY5Y cells stably overexpressing the β-APP C-terminal fragment SPA4CT. All compounds were tested at least twice in independent experiments. Consistent with the profile of γ-secretase modulators, total Aβ peptide levels were constant; selected GSMs were confirmed in a SELDI experiment confirming the appearance of shorter fragments while Aβ42 formation was suppressed. (a) Best, J. D.; Jay, M. T.; Otu, F.; Ma, J.; Nadin, A.; Ellis, S.; Lewis, H. D.; Pattison, C.; Reilly, M.; Harrison, T.; Shearman, M. S.; Williamson, T. L.; Atack, J. R. J. Pharmacol. Exp. Ther. 2005, 313, 902;
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    • Not all compounds were profiled in our Notch nuclear translocation assay. Most compounds maintain a significant window over Notch. Key compounds were profiled in the following assay: HeLa cells were made to co-express nonfunctional halves of luciferase, one fused to NotchΔE and the other to RBP-Jł. γ-Secretase mediated cleavage of NotchDE results in release of Notch intracellular domain (NICD)/N-terminal luciferase, which translocates to the nucleus and binds the RBP-Jj/C-terminal luciferase to form a functional luciferase enzyme. This split-luciferase complementation system is used to detect NICD levels by measuring total luminescence upon addition of luciferin to lysed cells
    • Not all compounds were profiled in our Notch nuclear translocation assay. Most compounds maintain a significant window over Notch. Key compounds were profiled in the following assay: HeLa cells were made to co-express nonfunctional halves of luciferase, one fused to NotchΔE and the other to RBP-Jł. γ-Secretase mediated cleavage of NotchDE results in release of Notch intracellular domain (NICD)/N-terminal luciferase, which translocates to the nucleus and binds the RBP-Jj/C-terminal luciferase to form a functional luciferase enzyme. This split-luciferase complementation system is used to detect NICD levels by measuring total luminescence upon addition of luciferin to lysed cells. Paulmurugan, R.; Gambhir, S. S. Anal. Chem. 2005, 77, 1295.
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    • A modest PgP susceptibility (rat-mdr1a BA/AB = 7.2) might be partially responsible for the lower brain exposure of compound 47.
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    • note
    • The reduction of Aβ42 in PK/PD experiments was generally greater than the reduction of Aβ40, consistent with in vitro findings.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.