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Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
Published on: January 7, 2019
Cancer, stem cells, and oncolytic viruses
Camilla Ribacka1, Sari Pesonen, Akseli Hemminki
1Cancer Gene Therapy Group, Molecular Cancer Biology Program, University of Helsinki, Helsinki, Finland.
Annals of Medicine
|July 9, 2008
Summary
Cancer stem cells drive tumor growth and resist treatment. Oncolytic viruses, particularly adenoviruses, show promise for targeting these resilient cells, potentially improving patient survival in metastatic cancers.
Area of Science:
- Oncology
- Virology
- Stem Cell Biology
Background:
- Cancer stem cells (CSCs) possess self-renewal and pluripotency, driving tumor initiation and growth.
- CSCs exhibit resistance to conventional therapies like chemotherapy and radiation, contributing to tumor relapse.
- Targeting CSCs alongside bulk tumor cells is crucial for improving outcomes in metastatic cancers.
Purpose of the Study:
- To review the current literature supporting the existence and role of cancer stem cells.
- To explore the potential of oncolytic virotherapy as a strategy to eliminate CSCs.
- To discuss the specific application of oncolytic adenoviruses against CSCs.
Main Methods:
- Literature review of studies on cancer stem cells and oncolytic viruses.
- Analysis of CSC characteristics, including resistance mechanisms and therapeutic vulnerabilities.
- Evaluation of oncolytic adenovirus engineering strategies targeting CSC-specific markers or pathways.
Main Results:
- Cancer stem cells are implicated in tumor initiation, progression, and therapeutic resistance.
- Oncolytic viruses may evade CSC defense mechanisms due to their infection-based entry.
- Oncolytic adenoviruses can be engineered to target CSCs via specific markers, signaling pathways, or oncogenes.
Conclusions:
- Cancer stem cells represent a significant challenge in cancer treatment due to their resistance.
- Oncolytic virotherapy, especially with engineered adenoviruses, offers a novel approach to target and eliminate CSCs.
- This strategy holds potential for overcoming treatment resistance and improving survival rates for patients with metastatic tumors.
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