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Studying the Effects of Tumor-Secreted Paracrine Ligands on Macrophage Activation using Co-Culture with Permeable Membrane Supports
Published on: November 28, 2019
Suppressive influences in the immune response to cancer
Vincenzo Bronte1, Simone Mocellin
1Istituto Oncologico Veneto, Fondazione IRCCS, Padova, Italy. enzo.bronte@unipd.it
Abstract:
Although much evidence has been gathered demonstrating that immune effectors can play a significant role in controlling tumor growth under natural conditions or in response to therapeutic manipulation, it is clear that malignant cells do evade immune surveillance in most cases. Considering that anticancer active specific immunotherapy seems to have reached a plateau of results and that currently no vaccination regimen is indicated as a standard anticancer therapy, the dissection of the molecular events underlying tumor immune escape is the necessary condition to make anticancer vaccines a therapeutic weapon effective enough to be implemented in the routine clinical setting. Recent years have witnessed significant advances in our understanding of the molecular mechanisms underlying tumor immune escape. These mechanistic insights are fostering the development of rationally designed therapeutics aimed to revert the immunosuppressive circuits that undermine an effective antitumor immune response. In this review, the best characterized mechanisms that allow cancer cells to evade immune surveillance are overviewed and the most debated controversies constellating this complex field are highlighted.
Insights
Cancer cells evade immune surveillance, hindering effective immunotherapy. Understanding tumor immune escape mechanisms is crucial for developing potent anticancer vaccines and therapies.
Area of Science:
- Immunology
- Oncology
- Cancer Research
Background:
- Immune effectors can control tumor growth, but cancer cells frequently evade immune surveillance.
- Anticancer immunotherapy has plateaued, with no current vaccination regimens as standard therapy.
- Understanding tumor immune escape is vital for advancing cancer vaccines.
Purpose of the Study:
- To review well-characterized mechanisms of tumor immune escape.
- To highlight key controversies in the field of tumor immune evasion.
- To inform the development of novel cancer immunotherapies.
Main Methods:
- Literature review of molecular mechanisms of tumor immune escape.
- Analysis of current advancements in understanding cancer immune evasion.
- Discussion of ongoing debates in tumor immunology.
Main Results:
- Malignant cells possess multiple strategies to evade immune surveillance.
- Advances in understanding immune escape are driving the development of new therapeutics.
- Targeting immunosuppressive circuits is a key strategy to enhance antitumor immune responses.
Conclusions:
- Dissecting molecular events of immune escape is essential for effective cancer vaccines.
- Mechanistic insights are paving the way for rationally designed immunotherapies.
- Further research into tumor immune evasion is critical for clinical applications.
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