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Hydrophilic polymers are widely used already for steric stabilisation of bioactive proteins, changing their pharmacokinetics and modifying their interactions with the biological environment. Polymers may also be conjugated to biological surfaces, such as viruses, bacteria and mammalian cells, also to endow steric protection and changed properties. Reactive polymers based on N-[2-hydroxypropyl]methacrylamide have shown particular promise for surface coating of viruses, particularly adenovirus, and here we describe the important observations and innovations arising from this combination of chemical and genetic engineering. Adenovirus is a versatile agent that already finds important experimental applications as a recombinant vaccine, and also for cancer therapy, although its activity in both settings is often limited by a potent antibody-neutralising response in humans that is generally not seen in experimental animals. Coating with HPMA copolymers provides protection against neutralisation by antibodies and complement, and covalent linkage of novel ligands to the surface of the polymer can endow new infectious tropisms, mediated through different receptors, that can expand the potential applications of this versatile technology for a range of settings.

Original publication




Journal article


Adv Drug Deliv Rev

Publication Date





240 - 245


Acrylamides, Adenoviridae, Animals, Drug Carriers, Gene Targeting, Genetic Vectors, Humans, Oncolytic Virotherapy, Polymers