title: Predicting Caco-2 permeability using support vector machine and chemistry development kit.
abstract: OBJECTIVE
  To predict Caco-2 permeability is a valuable target for pharmaceutical research. Most of the Caco-2 prediction models are based on commercial or special software which limited their practical value. This study represents the relationship between Caco-2 permeability and molecular descriptors totally based on open source software.
  
  
  METHODS
  The Caco-2 prediction model was constructed based on descriptors generated by open source software Chemistry Development Kit (CDK) and a support vector machine (SVM) method. Number of H-bond donors and three molecular surface area descriptors constructed the prediction model.
  
  
  RESULTS
  The correlation coefficients (r) of the experimental and predicted Caco-2 apparent permeability for the training set and the test set were 0.88 and 0.85, respectively.
  
  
  CONCLUSIONS
  The results suggest that the SVM method is effective for predicting Caco-2 permeability. Membrane permeability of compounds is determined by number of H-bond donors and molecular surface area properties.
authors.affiliation: Pharmaceutical Informatics Institute, Zhejiang University, Hangzhou, China.
authors.forename: Maria
authors.initials: M
authors.lastname: Guangli
authors.forename: Cheng
authors.initials: C
authors.lastname: Yiyu
mesh_terms: D018938:Caco-2 Cells; D002463:Cell Membrane Permeability / Q000502:physiology*; D003198:Computer Simulation; D006801:Humans; D008954:Models, Biological; D015394:Molecular Structure; D010539:Permeability; D011237:Predictive Value of Tests; D012984:Software