Related Experiment Video
Updated: Feb 21, 2026
Measurement of Natural Killer Cell-Mediated Cytotoxicity and Migration in the Context of Hepatic Tumor Cells
Published on: February 22, 2020
Natural Killer Cells - Their Role in Tumour Immunosurveillance
Preeti Sharma1, Pradeep Kumar2, Rachna Sharma3
1Associate Professor, Department of Biochemistry, Santosh Medical University, Ghaziabad, Uttar Pradesh, India.
Abstract:
An important component of the innate immune system, the natural killer cells that originate from the lymphoid cell lineage, hold tremendous potential as an effective therapeutic tool to combat a variety of cancers. Their vast capability to kill altered cells such as opsonized cells (antibody coated), tumour cells, genotoxically changed cells without affecting the healthy cells of the body, make them an effective therapeutic agent for various types of cancers. Besides, through interplay and molecular crosstalk via several cytokines, they also augment the adaptive immune response by, promoting the differentiation, activation and recruitment of component cells of the system. With the current advance knowledge of Natural Killer (NK) cells, their receptor-ligand interactions involved in functional regulation, various mechanistic approaches involving the role of cytokines led to desired modulation of NK cell activity in a tailor-made manner, for triggering clinically relevant responces. Several strategies have been adopted by researchers, to augment the efficacy of NK cells. Still many challenges exist for increasing the therapeutic relevance of these cells.
Insights
Natural killer (NK) cells, a part of the innate immune system, show great promise for cancer therapy. Researchers are exploring strategies to enhance NK cell efficacy against various cancers, despite existing challenges.
Area of Science:
- Immunology
- Oncology
- Cell Biology
Background:
- Natural killer (NK) cells are crucial components of the innate immune system originating from the lymphoid lineage.
- NK cells possess the unique ability to eliminate cancerous and virally infected cells while sparing healthy ones.
- They also play a role in augmenting adaptive immunity through cytokine-mediated interactions.
Purpose of the Study:
- To explore the therapeutic potential of Natural Killer (NK) cells in cancer treatment.
- To review the mechanisms by which NK cells combat cancer and modulate immune responses.
- To discuss current strategies and challenges in enhancing NK cell-based cancer therapies.
Main Methods:
- Review of scientific literature on NK cell biology and function.
- Analysis of NK cell receptor-ligand interactions and cytokine signaling pathways.
- Examination of various strategies employed to augment NK cell activity for therapeutic purposes.
Main Results:
- NK cells demonstrate potent cytotoxic activity against diverse cancer types, including antibody-coated, tumor, and genotoxically damaged cells.
- NK cells enhance adaptive immunity by promoting the differentiation, activation, and recruitment of other immune cells.
- Advances in understanding NK cell mechanisms allow for tailored modulation of their activity to achieve clinically relevant responses.
Conclusions:
- NK cells represent a promising therapeutic avenue for various cancers due to their targeted cytotoxicity and immune-modulating capabilities.
- Current research focuses on optimizing NK cell-based strategies through understanding their intricate regulatory mechanisms.
- Further research is needed to overcome existing challenges and fully realize the therapeutic potential of NK cells in oncology.
Related Concept Videos
01:25Immune Surveillance by NK Cells and Phagocytes
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
01:28Cells of the Innate Immune Response
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
01:27Cytotoxic T Cells-mediated Immune Response
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
01:27Tumor Immunotherapy
01:29Immune Response Against Viral Pathogens
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
01:40Cell-mediated Immune Responses