A 2D-QSPR approach to predict blood-brain barrier penetration of drugs acting on the central nervous system
Drugs acting on the central nervous system (CNS) have to cross the blood-brain barrier (BBB) in order to perform their pharmacological actions. Passive BBB diffusion can be partially expressed by the blood/brain partition coefficient (logBB). As the experimental evaluation of logBB is time and cost...
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Universidade de São Paulo
2010-12-01
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doaj-131b261ea5be43d0a0cb17e5cff5cfad2020-11-24T23:27:16ZengUniversidade de São PauloBrazilian Journal of Pharmaceutical Sciences1984-82502175-97902010-12-0146474175110.1590/S1984-82502010000400016A 2D-QSPR approach to predict blood-brain barrier penetration of drugs acting on the central nervous systemMatheus Malta de SáKerly Fernanda Mesquita PasqualotoCarlota de Oliveira Rangel-YaguiDrugs acting on the central nervous system (CNS) have to cross the blood-brain barrier (BBB) in order to perform their pharmacological actions. Passive BBB diffusion can be partially expressed by the blood/brain partition coefficient (logBB). As the experimental evaluation of logBB is time and cost consuming, theoretical methods such as quantitative structure-property relationships (QSPR) can be useful to predict logBB values. In this study, a 2D-QSPR approach was applied to a set of 28 drugs acting on the CNS, using the logBB property as biological data. The best QSPR model [n = 21, r = 0.94 (r² = 0.88), s = 0.28, and Q² = 0.82] presented three molecular descriptors: calculated n-octanol/water partition coefficient (ClogP), polar surface area (PSA), and polarizability (α). Six out of the seven compounds from the test set were well predicted, which corresponds to good external predictability (85.7%). These findings can be helpful to guide future approaches regarding those molecular descriptors which must be considered for estimating the logBB property, and also for predicting the BBB crossing ability for molecules structurally related to the investigated set.<br>Fármacos que atuam no sistema nervoso central (SNC) devem atravessar a barreira hematoencefálica (BHE) para exercerem suas ações farmacológicas. A difusão passiva através da BHE pode ser parcialmente expressa pelo coeficiente de partição entre os compartimentos encefálico e sanguíneo (logBB, brain/blood partition coefficient). Considerando-se que a avaliação experimental de logBB é dispendiosa e demorada, métodos teóricos como estudos das relações entre estrutura química e propriedade (QSPR, Quantitative Structure-Property Relationships) podem ser utilizados na previsão dos valores de logBB. Neste estudo, uma abordagem de QSPR-2D foi aplicada a um conjunto de 28 moléculas com ação central, usando logBB como propriedade biológica. O melhor modelo de QSPR [n = 21, r = 0,94 (r² = 0,88), s = 0,28 e Q² = 0,82] apresentou três descritores moleculares: o coeficiente calculado de partição n-octanol/água (ClogP), área de superfície polar (PSA) e polarizabilidade (α). Seis dos sete compostos do conjunto de avaliação foram bem previstos pelo modelo, o que corresponde a um bom poder de previsão externa (85,7%). Os resultados obtidos podem auxiliar de forma relevante em estudos futuros, orientando quais descritores moleculares devem ser considerados para estimar logBB e prever a passagem através da BHE de moléculas estruturalmente relacionadas às do conjunto investigado.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000400016Relações quantitativas bidimensionais entre estrutura química e propriedade (2D-QSPR)Coeficiente calculado de partição n-octanol/água (ClogP)Barreira hematoencefálicaBenzodiazepínicosTwo-dimensional quantitative structure-property relationships (2D-QSPR)Calculated n-octanol/water partition coefficient (ClogP)Blood-brain barrierBenzodiazepines |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Matheus Malta de Sá Kerly Fernanda Mesquita Pasqualoto Carlota de Oliveira Rangel-Yagui |
spellingShingle |
Matheus Malta de Sá Kerly Fernanda Mesquita Pasqualoto Carlota de Oliveira Rangel-Yagui A 2D-QSPR approach to predict blood-brain barrier penetration of drugs acting on the central nervous system Brazilian Journal of Pharmaceutical Sciences Relações quantitativas bidimensionais entre estrutura química e propriedade (2D-QSPR) Coeficiente calculado de partição n-octanol/água (ClogP) Barreira hematoencefálica Benzodiazepínicos Two-dimensional quantitative structure-property relationships (2D-QSPR) Calculated n-octanol/water partition coefficient (ClogP) Blood-brain barrier Benzodiazepines |
author_facet |
Matheus Malta de Sá Kerly Fernanda Mesquita Pasqualoto Carlota de Oliveira Rangel-Yagui |
author_sort |
Matheus Malta de Sá |
title |
A 2D-QSPR approach to predict blood-brain barrier penetration of drugs acting on the central nervous system |
title_short |
A 2D-QSPR approach to predict blood-brain barrier penetration of drugs acting on the central nervous system |
title_full |
A 2D-QSPR approach to predict blood-brain barrier penetration of drugs acting on the central nervous system |
title_fullStr |
A 2D-QSPR approach to predict blood-brain barrier penetration of drugs acting on the central nervous system |
title_full_unstemmed |
A 2D-QSPR approach to predict blood-brain barrier penetration of drugs acting on the central nervous system |
title_sort |
2d-qspr approach to predict blood-brain barrier penetration of drugs acting on the central nervous system |
publisher |
Universidade de São Paulo |
series |
Brazilian Journal of Pharmaceutical Sciences |
issn |
1984-8250 2175-9790 |
publishDate |
2010-12-01 |
description |
Drugs acting on the central nervous system (CNS) have to cross the blood-brain barrier (BBB) in order to perform their pharmacological actions. Passive BBB diffusion can be partially expressed by the blood/brain partition coefficient (logBB). As the experimental evaluation of logBB is time and cost consuming, theoretical methods such as quantitative structure-property relationships (QSPR) can be useful to predict logBB values. In this study, a 2D-QSPR approach was applied to a set of 28 drugs acting on the CNS, using the logBB property as biological data. The best QSPR model [n = 21, r = 0.94 (r² = 0.88), s = 0.28, and Q² = 0.82] presented three molecular descriptors: calculated n-octanol/water partition coefficient (ClogP), polar surface area (PSA), and polarizability (α). Six out of the seven compounds from the test set were well predicted, which corresponds to good external predictability (85.7%). These findings can be helpful to guide future approaches regarding those molecular descriptors which must be considered for estimating the logBB property, and also for predicting the BBB crossing ability for molecules structurally related to the investigated set.<br>Fármacos que atuam no sistema nervoso central (SNC) devem atravessar a barreira hematoencefálica (BHE) para exercerem suas ações farmacológicas. A difusão passiva através da BHE pode ser parcialmente expressa pelo coeficiente de partição entre os compartimentos encefálico e sanguíneo (logBB, brain/blood partition coefficient). Considerando-se que a avaliação experimental de logBB é dispendiosa e demorada, métodos teóricos como estudos das relações entre estrutura química e propriedade (QSPR, Quantitative Structure-Property Relationships) podem ser utilizados na previsão dos valores de logBB. Neste estudo, uma abordagem de QSPR-2D foi aplicada a um conjunto de 28 moléculas com ação central, usando logBB como propriedade biológica. O melhor modelo de QSPR [n = 21, r = 0,94 (r² = 0,88), s = 0,28 e Q² = 0,82] apresentou três descritores moleculares: o coeficiente calculado de partição n-octanol/água (ClogP), área de superfície polar (PSA) e polarizabilidade (α). Seis dos sete compostos do conjunto de avaliação foram bem previstos pelo modelo, o que corresponde a um bom poder de previsão externa (85,7%). Os resultados obtidos podem auxiliar de forma relevante em estudos futuros, orientando quais descritores moleculares devem ser considerados para estimar logBB e prever a passagem através da BHE de moléculas estruturalmente relacionadas às do conjunto investigado. |
topic |
Relações quantitativas bidimensionais entre estrutura química e propriedade (2D-QSPR) Coeficiente calculado de partição n-octanol/água (ClogP) Barreira hematoencefálica Benzodiazepínicos Two-dimensional quantitative structure-property relationships (2D-QSPR) Calculated n-octanol/water partition coefficient (ClogP) Blood-brain barrier Benzodiazepines |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000400016 |
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