Bioorthogonal oxime ligation mediated in vivo cancer targeting† †Electronic supplementary information (ESI) available: Synthesis and characterization of compounds and nanoparticles, in vitro and in vivo tumor cell labelling with liposomes, PET/CT imaging and biodistribution. See DOI: 10.1039/c5sc00063g Click here for additional data file.
نویسندگان
چکیده
Current cancer targeting relying on specific biological interaction between cell surface antigen and respective antibody or its analogue has proven to be effective in the treatment of different cancers; however, this strategy has its own limitations, such as heterogeneity of cancer cells and immunogenicity of the biomacromolecule binding ligands. Bioorthogonal chemical conjugation has emerged as an attractive alternative to biological interaction for in vivo cancer targeting. Here, we report an in vivo cancer targeting strategy mediated by bioorthogonal oxime ligation. Oxyamine group, the artificial target, is introduced onto 4T1 murine breast cancer cells through liposome delivery and fusion. Poly(ethylene glycol) -polylactide (PEG-PLA) nanoparticle (NP) is surface-functionalized with aldehyde groups as targeting ligands. The improved in vivo cancer targeting of PEG-PLA NPs is achieved through specific and efficient chemical reaction between the oxyamine and aldehyde groups.
منابع مشابه
Bioorthogonal oxime ligation mediated in vivo cancer targeting
Department of Materials Science and Urbana–Champaign, 1304 West Green S [email protected]; Fax: +1-217-333-2736 Department of Pharmaceutical Science, Guangzhou, Guangdong, 510006, China Department of Bioengineering, University o IL 61801, USA † Electronic supplementary informatio characterization of compounds and nan cell labelling with liposomes, PET/CT im 10.1039/c5sc00063g ‡ Contributed ...
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