Issue October 2009

category image Volume 27
No. 2 (p 111-244)
October 2009
ISSN 0739-110

Ligand-Based Dual Target Drug Design for H1N1: Swine Flu- A Preliminary First Study (171-178)

In March and April, 2009, an outbreak of H1N1 influenza in Mexico had led to hundreds of confirmed cases and the death toll had risen to 160. The worldwide spread of H1N1 has been attracting global attention and arising an overwhelming fear. So far, the vaccine and remedy has been in urgent need. In this study, a QSAR model and pharmacophore map of neuraminidase (NA) type 1 (N1) contained two hydrogen bond acceptor features, one hydrogen bond donor feature, and one positive ionizable feature. NCI database was employed in virtual screen by the N1 pharmacophore map features. After screening, compounds were obtained and then docked into haemagglutinin type 1 (H1) to find out the candidate drugs for dual target of both N1 and H1. The candidate, NCI0353858, selected via virtual screening and docking, might be functional to this worldwide disease; consequently, further clinical investigations and scientific application are urgently demanded. We realize the proposed ligand does not have much validity without conducting a study on the stability of the protein-ligand complex by MD simulations and binding free energy, and such a study is underway and will be reported later in this journal. Nevertheless, the present study is clear, consistent and could give a rational explanation for the binding mode of the best selected ligand.

Chien-Yu Chen1,#
Yea-Huey Chang1,#
Da-Tian Bau1,2,3,#
Hung-Jin Huang1
Fuu-Jen Tsai4,5,*
Chang-Hai Tsai6,*
Calvin Yu-Chian Chen1,2,3,5,7,*

1Laboratory of Pharmacoinformatics and Nanotechnology Department of Biological Science and Technology, China Medical University Taichung, 40402, Taiwan
2Graduate Institute of Chinese Medical Science, China Medical University Taichung, 40402, Taiwan
3Terry Fox Cancer Research Lab China Medical University Hospital Taichung, 40402, Taiwan
4Department of Medical Genetics Pediatrics and Medical Research China Medical University Hospital and College of Chinese Medicine China Medical University Taichung, 40402, Taiwan
5Department of Bioinformatics Asia University, Taichung, 41354, Taiwan 6Department of Healthcare Administration Asia University Taichung, 41354, Taiwan
7Currently in Department of Biological Engineering and Center for Cancer Research Massachusetts Institute of Technology Cambridge, MA 02139, USA

ycc@mail.cmu.edu.tw

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