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Updated: Jul 30, 2025

Flow Cytometry-based Assay for the Monitoring of NK Cell Functions
Published on: October 30, 2016
The Function of NK Cells in Tumor Metastasis and NK Cell-Based Immunotherapy
1Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
Abstract:
Metastatic tumors cause the most deaths in cancer patients. Treating metastasis remains the primary goal of current cancer research. Although the immune system prevents and kills the tumor cells, the function of the immune system in metastatic cancer has been unappreciated for decades because tumors are able to develop complex signaling pathways to suppress immune responses, leading them to escape detection and elimination. Studies showed NK cell-based therapies have many advantages and promise for fighting metastatic cancers. We here review the function of the immune system in tumor progression, specifically focusing on the ability of NK cells in antimetastasis, how metastatic tumors escape the NK cell attack, as well as the recent development of effective antimetastatic immunotherapies.
Insights
Natural killer (NK) cells are crucial for fighting metastatic cancer. This review explores how tumors evade NK cell attacks and discusses promising NK cell-based immunotherapies for cancer treatment.
Area of Science:
- Immunology
- Oncology
- Cancer Research
Background:
- Metastatic tumors are the leading cause of cancer-related deaths.
- The immune system's role in combating metastasis has been historically underestimated.
- Tumors develop sophisticated mechanisms to evade immune surveillance and elimination.
Purpose of the Study:
- To review the immune system's function in tumor progression.
- To focus on the role of natural killer (NK) cells in combating metastasis.
- To examine how metastatic tumors escape NK cell-mediated immunity and discuss emerging immunotherapies.
Main Methods:
- Literature review of immunological and oncological studies.
- Analysis of NK cell functions in the context of cancer metastasis.
- Synthesis of current research on tumor immune evasion strategies.
Main Results:
- NK cells possess significant potential in preventing and treating metastatic cancers.
- Metastatic tumors employ complex signaling to suppress immune responses, including NK cell activity.
- Recent advancements highlight effective antimetastatic immunotherapies.
Conclusions:
- NK cell-based therapies offer a promising strategy against metastatic cancers.
- Understanding tumor evasion mechanisms is key to developing effective immunotherapies.
- Targeting NK cell function is a critical area for future cancer treatment research.
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