Validation of a dual reporter system for in vivo heat-mediated HSP70 expression in prostate tumors

Minimally invasive thermal therapy is gaining ground as a new treatment modality of prostate tumors. However, further understanding of molecular events like HSP70 expression is required for treatment planning and coordination with chemotherapy and radiation. Metastatic prostate tumor (PC3 MM2) cells, transduced with reporter genes, were utilized to study the expression of HSP70 induced by normal and nanoshell-mediated heating. A correlation was noted between HSP70 expression, cellular viability and heating temperatures. This imaging paradigm can be developed into a PET-MR thermal treatment regimen, which would include dosimetry planning, real time temperature monitoring and post treatment assessment of tumor response at a cellular level.

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