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Published on: June 13, 2019
The universal character of the tumor-associated antigen survivin
Mads Hald Andersen1, Inge Marie Svane, Jürgen C Becker
1Center for Cancer Immunotherapy, Department of Hematology, Herlev University Hospital, Herlev, Denmark. mahaan01@heh.regionh.dk
Abstract:
Survivin is expressed in most human neoplasms, but is absent in normal, differentiated tissues. Survivin is a bifunctional inhibitor of apoptosis protein that has been implicated in protection from apoptosis and regulation of mitosis. Several clinical trials targeting survivin with a collection of different approaches from small molecule antagonists to immunotherapy are currently under way. With regard to the latter, spontaneous anti-survivin T-cell reactivity has been described in cancer patients suffering from a huge range of cancers of different origin, e.g., breast and colon cancer, lymphoma, leukemia, and melanoma. Thus, survivin may serve as a universal target antigen for anticancer immunotherapy. Accordingly, down-regulation of survivin as a means of immune escape would severely inflict the survival capacity of tumor cells, which highlights this protein as a prime target candidate for therapeutic vaccinations against cancer. Data from several ongoing phase I/II trials targeting survivin for patients with advanced cancer will provide further information about this idea.
Insights
Survivin, a protein found in most cancers but not normal tissues, shows promise as a universal target for cancer immunotherapy. Targeting survivin may enhance cancer treatments and therapeutic vaccinations.
Area of Science:
- Oncology
- Immunology
- Molecular Biology
Background:
- Survivin is a bifunctional apoptosis inhibitor protein.
- It is expressed in most human neoplasms but absent in normal tissues.
- Survivin plays roles in apoptosis protection and mitosis regulation.
Purpose of the Study:
- To evaluate survivin as a universal target antigen for anticancer immunotherapy.
- To explore the potential of targeting survivin for therapeutic cancer vaccinations.
Main Methods:
- Review of existing data on survivin expression in various cancers.
- Analysis of spontaneous anti-survivin T-cell reactivity in cancer patients.
- Consideration of ongoing clinical trials targeting survivin.
Main Results:
- Survivin is present in a wide range of cancers, including breast, colon, lymphoma, leukemia, and melanoma.
- Spontaneous anti-survivin T-cell reactivity is observed in cancer patients.
- Down-regulation of survivin impacts tumor cell survival capacity.
Conclusions:
- Survivin is a promising universal target antigen for anticancer immunotherapy.
- Targeting survivin may be a viable strategy for therapeutic cancer vaccinations.
- Ongoing clinical trials will provide further insights into survivin-targeted therapies.
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