Abstract
Background: Selective and reversible types of MAO-B inhibitors have emerged as promising candidates for the management of neurodegenerative diseases. Several functionalized chalcone derivatives were shown to have potential reversible MAO-B inhibitory activity, which have recently been reported from our laboratory.
Methods: With the experimental results of about 70 chalcone derivatives, we further developed a pharmacophore modelling, and 2D and 3D- QSAR analyses of these reported chalcones for MAOB inhibition.
Results: The 2D-QSAR model presented four variables (MATS7v, GATS 1i and 3i, and C-006) from 143 Dragon 7 molecular descriptors, with a r2 value of 0.76 and a Q2 cv for cross-validation equal to 0.72. An external validation also was performed using 11 chalcones, obtaining a Q2 ext value of 0.74. The second 3D-QSAR model using MLR (multiple linear regression) was built starting from 128 Volsurf+ molecular descriptors, being identified as 4 variables (Molecular descriptors): D3, CW1 and LgS11, and L2LGS. Adetermination coefficient (r2) value of 0.76 and a Q2 cv for cross-validation equal to 0.72 were obtained for this model. An external validation also was performed using 11 chalcones and a Q2 ext value of 0.74 was found.
Conclusion: This report exhibited a good correlation and satisfactory agreement between experiment and theory.
Keywords: Chalcones, MAO-B, 2D-QSAR, 3D-QSAR, pharmacophore modeling, Q2 ext.
[http://dx.doi.org/10.2174/1389450117666151209123402] [PMID: 26648064]
[http://dx.doi.org/10.3389/fphar.2016.00340] [PMID: 27803666]
[http://dx.doi.org/10.1007/s00702-018-1876-2] [PMID: 29569037]
[http://dx.doi.org/10.1002/ardp.201900177] [PMID: 31478569]
[http://dx.doi.org/10.1016/j.pnpbp.2016.02.005] [PMID: 26891670]
[http://dx.doi.org/10.1021/jm501690r] [PMID: 25915162]
[http://dx.doi.org/10.2174/156802612805219987] [PMID: 23231398]
[http://dx.doi.org/10.2174/1568026611209061734] [PMID: 23030609]
[http://dx.doi.org/10.1021/acs.jpcb.6b09451] [PMID: 28084742]
[http://dx.doi.org/10.2174/1871524914666140129122632] [PMID: 24533911]
[http://dx.doi.org/10.2174/1871524915666151002124443] [PMID: 26429556]
[http://dx.doi.org/10.1021/jm2004267] [PMID: 21696156]
[http://dx.doi.org/10.2174/1386207320666170227155517] [PMID: 28245770]
[http://dx.doi.org/10.1111/jphp.13264] [PMID: 32246471]
[http://dx.doi.org/10.2174/156802612805220002] [PMID: 23231397]
[http://dx.doi.org/10.1016/j.ejmech.2020.112650] [PMID: 32920430]
[http://dx.doi.org/10.1002/cmdc.202000305] [PMID: 32583952]
[http://dx.doi.org/10.1002/med.21561] [PMID: 30604512]
[http://dx.doi.org/10.1016/j.bioorg.2021.104689] [PMID: 33571810]
[http://dx.doi.org/10.1002/slct.201901093]
[http://dx.doi.org/10.1016/j.biopha.2018.06.064] [PMID: 29940538]
[http://dx.doi.org/10.2174/1871527318666190906101326]
[http://dx.doi.org/10.1016/j.bioorg.2019.103335] [PMID: 31606547]
[http://dx.doi.org/10.1016/S0928-0987(00)00162-7]
[http://dx.doi.org/10.1016/S0166-1280(99)00360-7]
[http://dx.doi.org/10.1145/1656274.1656280]