Chapter title |
Assessment of Specificity of an Adenovirus Targeted to HER3/4
|
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Chapter number | 18 |
Book title |
ErbB Receptor Signaling
|
Published in |
Methods in molecular biology, January 2017
|
DOI | 10.1007/978-1-4939-7219-7_18 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7218-0, 978-1-4939-7219-7
|
Authors |
Sheena H. MacLeod, Kyle G. Potts, Shyambabu Chaurasiya, Mary M. Hitt |
Abstract |
Gene therapy with viral vectors, such as adenovirus (Ad), targeted to the human epidermal growth factor receptors 3 and 4 (HER3/4) are potentially useful for cancer therapy. Testing the expression of a reporter gene from these viruses in target cells is essential to determine functionality of the targeted virus. A competition assay with a relevant ligand (heregulin, HRG) can provide convincing evidence that blocking binding to the HER3/4 receptor results in decreased reporter gene expression. Labeling individual viruses with a fluorescent molecule allows examination of the targeted virus in specific steps in the infection. Virus internalization into cell lines can be determined using antibody-labeled receptors, and the virus colocalization with receptors can also be visualized. Characterization of a targeted virus in this fashion is important to demonstrate that the targeting of the virus functions in an expected manner, and provides support for larger-scale testing of the virus. Information acquired in these experiments may also be useful to inform and improve on the design of future targeted viruses. |
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Researcher | 3 | 75% |
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