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Bacteriophage biopanning in human tumour biopsies to identify cancer-specific targeting ligands

Maruta, Fukuto, Akita, Noriyuki, Nakayama, Jun, Miyagawa, Sinichi, Ismail, Tariq, Rowlands, David C., Kerr, David J., Fisher, Kerry D., Seymour, Leonard W. and Parker, Alan L. ORCID: 2007. Bacteriophage biopanning in human tumour biopsies to identify cancer-specific targeting ligands. Journal of Drug Targeting 15 (4) , pp. 311-319. 10.1080/10611860701195510

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Intravenous targeting of anticancer agents should improve both efficacy and therapeutic index. However, rational design of targeting constructs requires detailed definition of receptor targets and must take account of polarised tissue architecture that may restrict access to chosen receptors from the bloodstream. Bacteriophage biopanning provides a solution to this problem, identifying targeting sequences by functional selection rather than design, although reiterative panning in polarized human tumours has not previously been attempted. Here, we report an ex vivo, intra-arterial method for biopanning in freshly-resected human tumours, enabling reiterative selection of oligopeptide sequences capable of intravascular targeting to human colorectal tumours. Significant consensus was observed after two rounds of panning in tumours from different patients, and lead sequences demonstrated tumour targeting in samples from unrelated patients. This novel approach may be applicable to a wide range of settings, thus enabling iteration of consensus targeting sequences for tumour imaging and selective delivery of anticancer agents.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: Q Science > QR Microbiology
R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
R Medicine > RM Therapeutics. Pharmacology
Publisher: Informa Healthcare
Last Modified: 24 Oct 2022 10:08

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