Hypo-fractionated radiation, magnetic nanoparticle hyperthermia and a viral immunotherapy treatment of spontaneous canine cancer

P. Jack Hoopes, Karen L. Moodie, Alicia A. Petryk, James D. Petryk, Shawntel Sechrist, David J. Gladstone, Nicole F. Steinmetz, Frank A. Veliz, Alicea A. Bursey, Robert J. Wagner, Ashish Rajan, Danielle Dugat, Margaret Crary-Burney, Steven N. Fiering

Research output: Chapter in Book/Report/Conference proceedingConference contribution

24 Scopus citations

Abstract

It has recently been shown that cancer treatments such as radiation and hyperthermia, which have conventionally been viewed to have modest immune based anti-cancer effects, may, if used appropriately stimulate a significant and potentially effective local and systemic anti-cancer immune effect (abscopal effect) and improved prognosis. Using eight spontaneous canine cancers (2 oral melanoma, 3 oral amelioblastomas and 1 carcinomas), we have shown that hypofractionated radiation (6 x 6 Gy) and/or magnetic nanoparticle hyperthermia (2 X 43°C / 45 minutes) and/or an immunogenic virus-like nanoparticle (VLP, 2 x 200 μg) are capable of delivering a highly effective cancer treatment that includes an immunogenic component. Two tumors received all three therapeutic modalities, one tumor received radiation and hyperthermia, two tumors received radiation and VLP, and three tumors received only mNP hyperthermia. The treatment regimen is conducted over a 14-day period. All patients tolerated the treatments without complication and have had local and distant tumor responses that significantly exceed responses observed following conventional therapy (surgery and/or radiation). The results suggest that both hypofractionated radiation and hyperthermia have effective immune responses that are enhanced by the intratumoral VLP treatment. Molecular data from these tumors suggest Heat Shock Protein (HSP) 70/90, calreticulin and CD47 are targets that can be exploited to enhance the local and systemic (abscopal effect) immune potential of radiation and hyperthermia cancer treatment.

Original languageEnglish (US)
Title of host publicationEnergy-Based Treatment of Tissue and Assessment IX
EditorsThomas P. Ryan
PublisherSPIE
ISBN (Electronic)9781510605732
DOIs
StatePublished - 2017
Externally publishedYes
EventEnergy-Based Treatment of Tissue and Assessment IX - San Francisco, United States
Duration: Jan 29 2017Jan 30 2017

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume10066
ISSN (Print)1605-7422

Conference

ConferenceEnergy-Based Treatment of Tissue and Assessment IX
Country/TerritoryUnited States
CitySan Francisco
Period1/29/171/30/17

Keywords

  • Abscopal effect
  • Cancer therapy
  • Hyperthermia
  • Hypo-fractionated radiation
  • Spontaneous canine cancer
  • Viral-like nanoparticle (VLP)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

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