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Ex vivo Expansion of Tumor-reactive T Cells by Means of Bryostatin 1/Ionomycin and the Common Gamma Chain Cytokines Formulation
Published on: January 14, 2011
Immunotherapeutic applications of IL-15
Michela Croce1, Anna Maria Orengo, Bruno Azzarone
1IRCCS-AOU San-Martino-IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy.
Immunotherapy
|October 11, 2012
Summary
Interleukin-15 (IL-15) enhances immune responses by stimulating immune cells, showing promise for cancer immunotherapy and HIV infection treatment. Clinical trials are underway to confirm its potential benefits and risks.
Area of Science:
- Immunology
- Oncology
- Infectious Diseases
Background:
- Interleukin-15 (IL-15) is a cytokine crucial for innate and adaptive immunity.
- IL-15 promotes the proliferation, survival, and effector functions of Natural Killer (NK), T, and NKT cells.
Purpose of the Study:
- To review the potential applications of IL-15 in cancer immunotherapy.
- To update on the role of IL-15 in managing HIV infection.
Main Methods:
- Literature review of preclinical and clinical studies on IL-15.
- Analysis of IL-15's immune-enhancing activities and toxicity profile.
Main Results:
- IL-15 demonstrates significant potential in preclinical cancer models due to its immune-boosting properties and low toxicity.
- IL-15 may enhance immune responses in HIV infection, but further research is needed to assess risks and benefits.
Conclusions:
- IL-15 is a promising candidate for cancer immunotherapy.
- Clinical trials are ongoing to evaluate IL-15's efficacy and safety in cancer and HIV vaccination contexts.
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Tumor Immunotherapy
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
T Cell Types and Functions
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...

