Oncolytic virus immunotherapy for melanoma.
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| Abstract |
Melanoma is a type of skin cancer arising from melanocytes and is increasing in incidence. Although complete surgical excision of early stage lesions may be curative, metastatic melanoma continues to be a major therapeutic challenge. Advances in understanding the molecular pathways that promote tumorigenesis and the interactions between melanoma cells and the immune system have resulted in the approval of several newly targeted agents and immunotherapy strategies for the treatment of advanced disease. Oncolytic virus immunotherapy is a new approach that uses native or attenuated live viruses to selectively kill melanoma cells and induce systemic tumor-specific immune responses. A variety of viruses are now in clinical development with the attenuated oncolytic herpesvirus encoding granulocyte-macrophage colony stimulating factor, known as talimogene laherparepvec, recently demonstrating an improvement in durable response rate in patients with advanced melanoma compared with granulocyte-macrophage colony stimulating factor alone. A major advantage of talimogene laherparepvec and related agents is the limited toxicity and ability to use each individual tumor as a source of antigen to generate a highly specific antitumor immune response. These agents are easily administered in the out-patient setting and may be a reasonable option for patients with limited metastatic tumor burden, those with a good performance status and without extensive prior treatment, and in those who cannot tolerate more difficult therapeutic regimens. Further investigation into the impact on overall survival as monotherapy and combination of oncolytic virus immunotherapy with other forms of immunotherapy merit high priority for further clinical application of these novel agents for the treatment of melanoma and perhaps other cancers as well.
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| Authors | Neal Dharmadhikari, Janice M Mehnert, Howard L Kaufman |
| Journal | Current treatment options in oncology (Curr Treat Options Oncol) Vol. 16 Issue 3 Pg. 326 (Mar 2015) ISSN: 1534-6277 [Electronic] United States |
| PMID | 25777572 (Publication Type: Journal Article, Review) |
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