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Lee TJ, Nair M, Banasavadi-Siddegowda Y, Liu J, Nallanagulagari T, Jaime-Ramirez AC, Guo JY, Quadri H, Zhang J, Bockhorst KH, Aghi MK, Carbonell WS, Kaur B, Yoo JY. Enhancing Therapeutic Efficacy of Oncolytic Herpes Simplex Virus-1 with Integrin β1 Blocking Antibody OS2966. Mol Cancer Ther 2019; 18:1127-1136. [PMID: 30926634 DOI: 10.1158/1535-7163.mct-18-0953] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/01/2018] [Accepted: 03/20/2019] [Indexed: 02/06/2023]
Abstract
Integrin β1 receptor, expressed on the surface of tumor cells and macrophages in the tumor microenvironment (TME), has been implicated in both tumor progression and resistance to multiple modalities of therapy. OS2966 is the first clinical-ready humanized monoclonal antibody to block integrin β1 and was recently orphan designated by the FDA Office of Orphan Products Development. Here, we tested therapeutic potential of OS2966-mediated integrin β1 blockade to enhance the efficacy of oncolytic herpes simplex virus-1 (oHSV) through evaluation of virus replication, tumor cell killing efficiency, effect on the antiviral signaling pathway, co-culture assays of oHSV-infected cells with macrophages, and in vivo bioluminescence imaging on mammary fat pad triple-negative breast cancer xenograft and subcutaneous and intracranial glioma xenografts. OS2966 treatment decreased interferon signaling and proinflammatory cytokine induction in oHSV-treated tumor cells and inhibited migration of macrophages, resulting in enhanced oHSV replication and cytotoxicity. OS2966 treatment also significantly enhanced oHSV replication and oHSV-mediated antitumor efficacy in orthotopic xenograft models, including triple-negative breast cancer and glioblastoma. The results demonstrated the synergistic potential of the combinatory treatment approach with OS2966 to improve antitumor efficacy of conventional oHSV therapy.
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Affiliation(s)
- Tae Jin Lee
- The Department of Neurosurgery, University of Texas Health Science Center at Houston, Houston, Texas
| | - Mitra Nair
- The Department of Neurosurgery, University of Texas Health Science Center at Houston, Houston, Texas
| | - Yeshavanth Banasavadi-Siddegowda
- The Department of Neurosurgery, University of Texas Health Science Center at Houston, Houston, Texas.,Surgical Neurology Branch, NINDS, National Institutes of Health, Bethesda, Maryland
| | - Joseph Liu
- Department of Neurological Surgery, James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Tejaswini Nallanagulagari
- Department of Neurological Surgery, James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, Ohio.,Biochemistry and Microbiology Majors, The Ohio State University, Columbus, Ohio
| | - Alena Cristina Jaime-Ramirez
- Department of Neurological Surgery, James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Jeffrey Yunhua Guo
- Department of Neurological Surgery, James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, Ohio.,Biology Major, The Ohio State University, Columbus, Ohio
| | | | - Jianying Zhang
- Center for Biostatistics, Department of Biomedical Informatics, James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Kurt H Bockhorst
- Department of Diagnostic and Interventional Imaging, University of Texas Health Science Center at Houston, Houston, Texas
| | - Manish K Aghi
- University of California at San Francisco, California
| | | | - Balveen Kaur
- The Department of Neurosurgery, University of Texas Health Science Center at Houston, Houston, Texas
| | - Ji Young Yoo
- The Department of Neurosurgery, University of Texas Health Science Center at Houston, Houston, Texas.
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