Antibodies 2013, 2(2), 193-208; doi:10.3390/antib2020193

In Vivo Applications of Single Chain Fv (Variable Domain) (scFv) Fragments

Received: 4 February 2013; in revised form: 25 March 2013 / Accepted: 29 March 2013 / Published: 11 April 2013
(This article belongs to the Special Issue Single-Domain Antibody)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Single chain variable domain (Fv) fragments (scFv) are powerful tools in research and clinical settings, owing to better pharmacokinetic properties compared to the parent monoclonal antibodies and the relative ease of producing them in large quantities, at low cost. Though they offer several advantages, they suffer from lower binding affinity and rapid clearance from circulation, which limits their therapeutic potential. However, these fragments can be genetically modified to enhance desirable properties, such as multivalency, high target retention and slower blood clearance, and as such, a variety of scFv formats have been generated. ScFvs can be administered by systemic injection for diagnostic and therapeutic purposes. They can be expressed in vivo through viral vectors in instances where large infection rates and sustenance of high levels of the antibody is required. ScFvs have found applications as tools for in vivo loss-of-function studies and inactivation of specific protein domains, diagnostic imaging, tumor therapy and treatment for neurodegenerative and infectious diseases. This review will focus on their in vivo applications.
Keywords: scFv; recombinant antibodies; in vivo expression; adeno-associated virus (AAV); immunotherapy
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MDPI and ACS Style

Monnier, P.P.; Vigouroux, R.J.; Tassew, N.G. In Vivo Applications of Single Chain Fv (Variable Domain) (scFv) Fragments. Antibodies 2013, 2, 193-208.

AMA Style

Monnier PP, Vigouroux RJ, Tassew NG. In Vivo Applications of Single Chain Fv (Variable Domain) (scFv) Fragments. Antibodies. 2013; 2(2):193-208.

Chicago/Turabian Style

Monnier, Philippe P.; Vigouroux, Robin J.; Tassew, Nardos G. 2013. "In Vivo Applications of Single Chain Fv (Variable Domain) (scFv) Fragments." Antibodies 2, no. 2: 193-208.

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