Abstract
The recombinant antibodies in single-chain format (scFv) have found broad applications in both therapeutic and diagnostic fields. Tumour-associated antigens (TAAs) are proteins or other molecular species expressed in a specific tumour type, that can be targeted for diagnostic and immunotherapy purposes. The possibility of obtaining highly selective and efficacious scFvs makes them appropriate tools to target TAAs. The approach utilised for targeting depends on the nature of TAAs and their cell localisation. Tumour antigens displayed on the cell surface can be recognised by scFvs coupled to radioisotopes, toxins and enzymes to be used in cancer diagnosis and therapy. Intracellular tumour antigens can be targeted by scFvs expressed as “intracellular antibodies”. This review reports the existing scFv-based formats, hints of their generation and pharmacokinetics, and a description of the most promising TAAs. It also provides an update of in vitro, preclinical and clinical studies using scFvs against TAAs for cancer diagnosis and treatment, with their merits and limits.
Keywords: Single-chain antibody fragments, tumour-associated antigens, recombinant antibodies, intrabodies, cancer diagnosis, cancer therapy, targeted immunotherapy
Current Medicinal Chemistry
Title: Antibodies in Single-Chain Format Against Tumour-Associated Antigens:Present and Future Applications
Volume: 17 Issue: 17
Author(s): L. Accardi and P. Di Bonito
Affiliation:
Keywords: Single-chain antibody fragments, tumour-associated antigens, recombinant antibodies, intrabodies, cancer diagnosis, cancer therapy, targeted immunotherapy
Abstract: The recombinant antibodies in single-chain format (scFv) have found broad applications in both therapeutic and diagnostic fields. Tumour-associated antigens (TAAs) are proteins or other molecular species expressed in a specific tumour type, that can be targeted for diagnostic and immunotherapy purposes. The possibility of obtaining highly selective and efficacious scFvs makes them appropriate tools to target TAAs. The approach utilised for targeting depends on the nature of TAAs and their cell localisation. Tumour antigens displayed on the cell surface can be recognised by scFvs coupled to radioisotopes, toxins and enzymes to be used in cancer diagnosis and therapy. Intracellular tumour antigens can be targeted by scFvs expressed as “intracellular antibodies”. This review reports the existing scFv-based formats, hints of their generation and pharmacokinetics, and a description of the most promising TAAs. It also provides an update of in vitro, preclinical and clinical studies using scFvs against TAAs for cancer diagnosis and treatment, with their merits and limits.
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Cite this article as:
Accardi L. and Di Bonito P., Antibodies in Single-Chain Format Against Tumour-Associated Antigens:Present and Future Applications, Current Medicinal Chemistry 2010; 17 (17) . https://dx.doi.org/10.2174/092986710791111215
DOI https://dx.doi.org/10.2174/092986710791111215 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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