NSCs are permissive to oncolytic Myxoma virus and provide a delivery method for targeted ovarian cancer therapy

Yvonne Cornejo, Min Li, Thanh H. Dellinger, Rachael Mooney, Masmudur M. Rahman, Grant McFadden, Karen S. Aboody, Mohamed Hammad

Research output: Contribution to journalArticlepeer-review

Abstract

Despite the development of many anticancer agents over the past 20 years, ovarian cancer remains the most lethal gynecologic malignancy. Due to a lack of effective screening, the majority of patients with ovarian cancer are diagnosed at an advanced stage, and only ~20% of patients are cured. Thus, in addition to improved screening methods, there is an urgent need for novel anticancer agents that are effective against late-stage, metastatic disease. Oncolytic virotherapy is a promising approach; unfortunately, systemic delivery of viruses to tumors remains a major challenge. In this regard, neural stem/progenitor cells (NSCs) with well-established tumor-homing properties may serve as an effective delivery platform for oncolytic viruses. In this study, we tested the efficacy of myxoma virus (MYXV), a rabbit-specific poxvirus that has demonstrated efficacy against a variety of tumors, using human and mouse ovarian cancer cell lines. We showed that MYXV effectively lysed ovarian cancer cells in vitro, reducing their viability. We also demonstrated that MYXV can infect human NSCs, specifically the clonal HB1.F3.CD21 NSC line. Taken together, these results suggest that NSC-mediated delivery of MYXV may be a promising strategy for achieving more selectively targeted anti-tumor efficacy.

Original languageEnglish (US)
Pages (from-to)4693-4698
Number of pages6
JournalOncotarget
Volume11
Issue number51
DOIs
StatePublished - Dec 22 2020

Keywords

  • Myxoma
  • NSCs
  • Oncolytic virotherapy
  • Ovarian cancer

ASJC Scopus subject areas

  • Oncology

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