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Interaction of P-glycoprotein with anti-tumor drugs: the site, gate and pathway
KTH, School of Biotechnology (BIO), Theoretical Chemistry and Biology. Zhejiang University, China.
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2015 (English)In: Soft Matter, ISSN 1744-683X, Vol. 11, no 33, 6633-6641 p.Article in journal (Refereed) Published
Abstract [en]

Understanding the mechanism and pathway of anti-cancer drugs to be pumped out by P-glycoprotein (P-gp) in cancer cell is very important for the successful chemotherapy. P-gp is a member of ATP-binding cassette (ABC) transporters. In this study, random accelerated molecular dynamics (RAMD) simulation was used to explore the potential egress pathway of ligands from the binding pocket. This could be considered as a reverse process of drug binding. The most possible portal of drugs to dissociate is TM4/TM6, which is almost the same for different drugs, such as paclitaxel and doxorubicin. The interactions in the binding site are found to be remarkably stronger than that outside of the binding site. The results were suggested by the free energy calculation between P-gp and different drugs from metadynamics simulation. All the results indicate that the flexibility of inner residues, especially the residue Phe339, is very important for the drugs to access the binding site.

Place, publisher, year, edition, pages
2015. Vol. 11, no 33, 6633-6641 p.
National Category
Polymer Technologies
URN: urn:nbn:se:kth:diva-173299DOI: 10.1039/c5sm01028dISI: 000359581400011PubMedID: 26205623ScopusID: 2-s2.0-84939180920OAI: diva2:852506

QC 20150909

Available from: 2015-09-09 Created: 2015-09-09 Last updated: 2015-09-09Bibliographically approved

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Liang, Lijun
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