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Selection of Lung Cancer-Specific Landscape Phage for Targeted Drug Delivery

[ Vol. 19 , Issue. 5 ]

Author(s):

James W. Gillespie, Lixia Wei and Valery A. Petrenko   Pages 412 - 422 ( 11 )

Abstract:


Cancer cell-specific diagnostic or therapeutic tools are commonly believed to significantly increase the success rate of cancer diagnosis and targeted therapies. To extend the repertoire of available cancer cell-specific phage fusion proteins and study their efficacy as navigating moieties, we used two landscape phage display libraries f8/8 and f8/9 displaying an 8- or 9-mer random peptide fusion to identify a panel of novel peptide families that are specific to Calu-3 cells. Using a phage capture assay, we showed that two of the selected phage clones, ANGRPSMT and VNGRAEAP (phage and their recombinant proteins are named by the sequence of the fusion peptide), are selective for the Calu-3 cell line in comparison to phenotypically normal lung epithelial cells and distribute into unique subcellular fractions.

Keywords:

Drug delivery, endocytosis, landscape phage display, lung cancer, NGR motif.

Affiliation:

Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA.



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