Title:Tit Structure-activity Relationship Study and Design of Novel 1, 8-
Naphthimide Derivatives as Potential DNA-targeting Chemotherapeutic
Agents for Osteosarcoma
Volume: 19
Issue: 9
Author(s): Zheng Lian, Hongzong Si*, Huanling Xia and Honglin Zhai
Affiliation:
- Public Health, Institute for Computational
Science and Engineering, Qingdao University, Qingdao, China
Keywords:
Osteosarcoma, tumor targeting agents, QSAR, COMSIA, drug design, 1, 8-naphthimide.
Abstract:
Background: 1, 8-naphthimide is a novel tumor inhibitor targeting nuclear DNA, which
makes it applicable to the design and development of anti-osteosarcoma drugs.
Objective: The aim of this study is to establish a satisfactory model based on 1, 8-naphthimide derivatives
that makes reliable prediction as DNA-targeted chemotherapy agents for osteosarcoma.
Methods: All compounds are constructed using ChemDraw software and subsequently optimized
using Sybyl software. COMSIA method is used to construct QSAR model with the optimized compound
in Sybyl software package. A series of new 1, 8-naphthalimide derivatives are designed and
their IC50 values are predicted using the QSAR model. Finally, the newly designed compounds are
screened according to IC50 values, and molecular docking experiments are conducted on the top ten
compounds of IC50.
Results: The COMSIA model shows that q2 is 0.529 and the optimum number of components is 6.
The model has a high r2 value of 0.993 and a low SEE of 0.033, with the F value and the r2 predicted
to be 495.841 and 0.996 respectively. The statistical results and verification results of the model are
satisfactory. In addition, analyzing the contour maps is conducive to finding the structural requirements.
Conclusion: The results of this study can provide guidance for medical chemists and other related
workers to develop targeted chemotherapy drugs for osteosarcoma.