Related Experiment Video
Updated: May 23, 2026

Preparation of Tumor Antigen-loaded Mature Dendritic Cells for Immunotherapy
Published on: August 1, 2013
Dendritic cells the tumor microenvironment and the challenges for an effective antitumor vaccination
Fabian Benencia1, Leslee Sprague, John McGinty
1Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, Athens, OH 45701-2979, USA. benencia@oucom.ohiou.edu
Abstract:
Many clinical trials have been carried out or are in progress to assess the therapeutic potential of dendritic-cell- (DC-) based vaccines on cancer patients, and recently the first DC-based vaccine for human cancer was approved by the FDA. Herewith, we describe the general characteristics of DCs and different strategies to generate effective antitumor DC vaccines. In recent years, the relevance of the tumor microenvironment in the progression of cancer has been highlighted. It has been shown that the tumor microenvironment is capable of inactivating various components of the immune system responsible for tumor clearance. In particular, the effect of the tumor microenvironment on antigen-presenting cells, such as DCs, does not only render these immune cells unable to induce specific immune responses, but also turns them into promoters of tumor growth. We also describe strategies likely to increase the efficacy of DC vaccines by reprogramming the immunosuppressive nature of the tumor microenvironment.
Insights
Dendritic-cell-based vaccines show therapeutic potential for cancer patients. Strategies are discussed to enhance these vaccines by overcoming the tumor microenvironment's immunosuppressive effects.
Area of Science:
- Immunology
- Oncology
- Vaccinology
Background:
- Dendritic cells (DCs) are crucial antigen-presenting cells in anti-tumor immunity.
- The tumor microenvironment (TME) often suppresses immune responses, including DC function.
- Recent FDA approval highlights the clinical relevance of DC-based cancer vaccines.
Purpose of the Study:
- To review DC characteristics and strategies for effective anti-tumor DC vaccine development.
- To discuss the impact of the TME on DC function and anti-tumor immunity.
- To explore methods for enhancing DC vaccine efficacy by modulating the TME.
Main Methods:
- Review of existing literature on dendritic cells and cancer vaccines.
- Analysis of the immunosuppressive mechanisms within the tumor microenvironment.
- Discussion of novel strategies for DC vaccine optimization.
Main Results:
- Dendritic cells play a key role in initiating anti-tumor immune responses.
- The TME actively impairs DC function, promoting tumor growth.
- Reprogramming the TME offers a promising approach to improve DC vaccine efficacy.
Conclusions:
- DC-based vaccines represent a significant advancement in cancer immunotherapy.
- Overcoming TME-mediated immunosuppression is critical for successful DC vaccination.
- Future strategies should focus on enhancing DC function within the tumor context.
Related Concept Videos
Tumor Immunotherapy
The Tumor Microenvironment
The Tumor Microenvironment
Cancer Vaccines
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
Cell-mediated Immune Responses

