Depletion of human regulatory T cells.
Regulatory T cells (Treg) have become increasingly relevant in the study of human disease including cancer. Treg cells have been shown to inhibit anti-tumor immune responses, and elevated Treg levels have been associated with certain types of cancer. Similarly, depletion of Tregs by various methods can also enhance anti-tumor immune responses. We have found a prevalence of Treg in cancer patients when compared to normal volunteers. In addition, we have shown that the depletion of Treg using the IL-2 fusion protein denileukin diftitox decreased Treg function and increased antigen-specific T cell response to a cancer vaccine. These results indicate the potential for combining Treg depletion with anti-cancer vaccines to enhance tumor antigen-specific immune responses and the need to explore the dose and schedule of Treg depletion strategies in optimizing vaccine efforts.
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Related Subject Headings
- T-Lymphocytes, Regulatory
- Recombinant Fusion Proteins
- Neoplasms
- Lymphocyte Depletion
- Interleukin-2
- Humans
- Diphtheria Toxin
- Developmental Biology
- Antigens, Neoplasm
- 3404 Medicinal and biomolecular chemistry
Citation
Published In
DOI
EISSN
Publication Date
Volume
Start / End Page
Location
Related Subject Headings
- T-Lymphocytes, Regulatory
- Recombinant Fusion Proteins
- Neoplasms
- Lymphocyte Depletion
- Interleukin-2
- Humans
- Diphtheria Toxin
- Developmental Biology
- Antigens, Neoplasm
- 3404 Medicinal and biomolecular chemistry