Article ; Online: Protocols to Manufacture an Oncolytic Measles Virus-Sensitive Immunocompetent Mouse Model of Medulloblastoma.
Methods in molecular biology (Clifton, N.J.)
2022 Volume 2423, Page(s) 165–177
Abstract: Oncolytic virotherapy translational research in the current era is heavily focused on the interaction of the immune system and tumor microenvironment with oncolytic viruses. Preclinical xenograft studies using human cells in immunodeficient mouse models ... ...
| Abstract | Oncolytic virotherapy translational research in the current era is heavily focused on the interaction of the immune system and tumor microenvironment with oncolytic viruses. Preclinical xenograft studies using human cells in immunodeficient mouse models does not serve this purpose. As a consequence, developing syngeneic immunocompetent murine cancer models sensitive to infection and growth of specific oncolytic viruses is required. The group 3 subtype of medulloblastoma, among the four molecular subgroups-WNT, SHH, Group 3, and Group 4, has the worst prognosis and the poorest outcome. Sadly, current treatments cause long-term toxicity and morbidity to survivors adversely affecting their quality of life. Alternate effective therapy with less side effects is urgently needed. We have shown that oncolytic measles virus (MV) is effective against localized as well as CSF-disseminated medulloblastoma in immunodeficient mouse models. To study the interaction of immune system with oncolytic measles virotherapy, we have developed a murine group 3 medulloblastoma cell line (CSCG) that is infectible by MV, is killed by MV, allows replication of MV, and is tumorigenic in the brain of syngeneic transgenic immune-competent mice. Intratumoral injection of MV results in significant prolongation of survival in mice bearing CSCG tumors in the brain. This model provides the first suitable platform to examine therapeutic regimens of MV therapy for MB tumors in the presence of intact immune system. Here, we describe our lab protocols to develop this cell line and the mouse model. |
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| MeSH term(s) | Animals ; Cell Line, Tumor ; Cerebellar Neoplasms/therapy ; Humans ; Measles/therapy ; Measles virus/genetics ; Medulloblastoma/pathology ; Medulloblastoma/therapy ; Mice ; Mice, Nude ; Oncolytic Virotherapy/methods ; Oncolytic Viruses/genetics ; Quality of Life ; Tumor Microenvironment ; Xenograft Model Antitumor Assays |
| Language | English |
| Publishing date | 2022-01-03 |
| Publishing country | United States |
| Document type | Journal Article |
| ISSN | 1940-6029 |
| ISSN (online) | 1940-6029 |
| DOI | 10.1007/978-1-0716-1952-0_16 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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