The search textbox has an autosuggest feature. When you enter three or more characters,
a list of up to 10 suggestions will popup under the textbox. Use the arrow keys
to move through the suggestions. To select a suggestion, hit the enter key. Using
the escape key closes the listbox and puts you back at the textbox. The radio buttons
allow you to toggle between having all search items start with or contain the text
you entered in the search box.
![](https://webarchive.library.unt.edu/web/20121010194616im_/http://www.cancer.gov/images/spacer.gif)
ex vivo-expanded HER2-specific T cells
T cells specific for the human epidermal growth factor receptor 2 (HER2) with potential immunopotentiating activity. T cells directed against HER2, overexpressed on many tumor cells, are collected from HER2-expressing tumor tissue, expanded ex vivo and, then re-introduced in the patient. Re-introduction of ex vivo-expanded HER2-specific T cells may enhance the cytotoxic T cell response against tumor cells overexpressing HER2, resulting in inhibition of tumor growth. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
![](https://webarchive.library.unt.edu/web/20121010194616im_/http://www.cancer.gov/images/spacer.gif)