Cancer immunotherapies, which seek to arm the patient’s own immune system for personalized therapy, are a promising option for effective elimination of tumors. Focused ultrasound (FUS) is one propitious method for generating anti-tumor immunotherapy, advantageous in its capacity to deliver non-ionizing, non-invasive, tumor-localized treatment; this involves the transdermal deposition of sonic energy at a focal point in the tumor, which induces acute inflammation capable of activating an anti-tumor immune response. Here, we characterize, <em>in vivo</em>, the early (48 hours) adaptive anti-tumor immune responses induced by FUS treatment of tumors. Compared to untreated tumors, tumors treated with mechanical FUS (mFUS) demonstrated increased NF-κB activation in local and distant tumors. Additionally, a “responder” subset of mFUS-treated mice was identified and mFUS-treated tumors exhibited an increased percent of CD4+ T cells and an increased CD4+/CD8+ T cell ratio, as compared to untreated tumors. Immunohistochemical analysis of CD4+ T cells revealed a higher presence of immunostimulatory phenotypes in mFUS-treated tumors compared to untreated tumors. Taken together, these results suggested a FUS-induced shift towards anti-tumor immune activity.
| Identifer | oai:union.ndltd.org:VANDERBILT/oai:VANDERBILTETD:etd-11212016-145818 |
| Date | 23 November 2016 |
| Creators | Dockery, Mary Diana |
| Contributors | Todd D Giorgio, Charles F Caskey |
| Publisher | VANDERBILT |
| Source Sets | Vanderbilt University Theses |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.library.vanderbilt.edu/available/etd-11212016-145818/ |
| Rights | restricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Vanderbilt University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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