Journal
JOURNAL OF VIROLOGICAL METHODS
Volume 140, Issue 1-2, Pages 17-24Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jviromet.2006.10.005
Keywords
AAV; serotype; monoclonal antibodies
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Adeno-associated viruses (AAV) have been developed and evaluated as recombinant vectors for gene therapy. More recently, due to the advantages they offer for gene transfer, several AAV serotypes have gained increasing interest. However, monoclonal antibodies for the characterization and quantitation of vectors derived from different serotypes are at present not available. Serotype-specific monoclonal antibodies (mAbs) against the capsids of the serotypes 1/6, 4 and 5 are describe1 a and b cross-reacted with its highly related AAV6 serotype, but not with the other serotypes tested. The new antibodies recognized exclusively assembled capsids and neither free nor denatured capsid proteins as shown by fractionation experiments. In immunofluorescence experiments, the mAbs stained only distinct intranuclear foci in cells expressing the capsid protein. The development of capture E-LISAs for quantitation of AAV1 and 6, AAV4 or AAV5 capsids illustrates that these novel monoclonal antibodies provide valuable tools for characterization of vector stocks. (c) 2006 Elsevier B.V. All rights reserved.
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