The ultimate goal of this proposal is to understand the contribution of Vstat120 expressing oncolytic viruses on OV propagation, tumor biology and anti-tumor efficacy. These results will lead to a better understanding of OV therapy induced changes in tumor biology and will lead to the development of a dually armed cancer killing OV. The OV treatment of tumors relies on cancer-specific replication of the virus leading to tumor destruction with minimal toxicity to adjacent non-neoplastic tissue. Results from six clinical trials using replication competent OVs to treat patients with malignant glioma have shown the new modality to be relatively safe, but high expectations of efficacy remain unmet (1, 2). The tumor's microenvironment is increasingly recognized as an important determinant for its progression and its response to therapeutics. My laboratory has recently created two oncolytic viruses, armed with an anti-angiogenic gene. We now propose to elucidate the role of this angiostatic protein in viral propagation, glioma biology and OV efficacy.
The American Cancer Society predicts that there will be 12,740 deaths due to cancers of the brain/nervous system. Despite decades of research prognosis for patients suffering from malignant gliomas remains poor. Oncolytic viral therapy is an experimental treatment which is currently being evaluated in clinical trials for efficacy against brain tumors. The proposed research outlined in this grant is highly significant because it will elucidate the impact of an oncolytic virus armed with Vstat120 on tumor microenvironment, and OV efficacy. The results will help translate oncolytic viral therapy into an efficacious treatment for tumors.
|Kim, Yangjin; Yoo, Ji Young; Lee, Tae Jin et al. (2018) Complex role of NK cells in regulation of oncolytic virus-bortezomib therapy. Proc Natl Acad Sci U S A 115:4927-4932|
|Russell, Luke; Swanner, Jessica; Jaime-Ramirez, Alena Cristina et al. (2018) PTEN expression by an oncolytic herpesvirus directs T-cell mediated tumor clearance. Nat Commun 9:5006|
|Saini, Uksha; Naidu, Shan; ElNaggar, Adam C et al. (2017) Elevated STAT3 expression in ovarian cancer ascites promotes invasion and metastasis: a potential therapeutic target. Oncogene 36:168-181|
|Jaime-Ramirez, Alena C; Yu, Jun-Ge; Caserta, Enrico et al. (2017) Reolysin and Histone Deacetylase Inhibition in the Treatment of Head and Neck Squamous Cell Carcinoma. Mol Ther Oncolytics 5:87-96|
|Bolyard, Chelsea; Meisen, W Hans; Banasavadi-Siddegowda, Yeshavanth et al. (2017) BAI1 Orchestrates Macrophage Inflammatory Response to HSV Infection-Implications for Oncolytic Viral Therapy. Clin Cancer Res 23:1809-1819|
|Banasavadi-Siddegowda, Y K; Russell, L; Frair, E et al. (2017) PRMT5-PTEN molecular pathway regulates senescence and self-renewal of primary glioblastoma neurosphere cells. Oncogene 36:263-274|
|Jaime-Ramirez, Alena Cristina; Dmitrieva, Nina; Yoo, Ji Young et al. (2017) Humanized chondroitinase ABC sensitizes glioblastoma cells to temozolomide. J Gene Med 19:|
|Lee, Tae Jin; Yoo, Ji Young; Shu, Dan et al. (2017) RNA Nanoparticle-Based Targeted Therapy for Glioblastoma through Inhibition of Oncogenic miR-21. Mol Ther 25:1544-1555|
|Quispe Calla, N E; Vicetti Miguel, R D; Boyaka, P N et al. (2016) Medroxyprogesterone acetate and levonorgestrel increase genital mucosal permeability and enhance susceptibility to genital herpes simplex virus type 2 infection. Mucosal Immunol 9:1571-1583|
|Barth, Rolf F; Wu, Gong; Meisen, W Hans et al. (2016) Design, synthesis, and evaluation of cisplatin-containing EGFR targeting bioconjugates as potential therapeutic agents for brain tumors. Onco Targets Ther 9:2769-81|
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