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Updated: Aug 24, 2026

Artificial Antigen Presenting Cell (aAPC) Mediated Activation and Expansion of Natural Killer T Cells
Published on: December 29, 2012
Regulation of antitumour immunity by CD1d-restricted NKT cells
Jeremy Swann1, Nadine Y Crowe, Yoshihiro Hayakawa
1Cancer Immunology Program, Trescowthick Laboratories, Peter MacCallum Cancer Centre, St. Andrews Place, East Melbourne, Victoria 3002, Australia.
Abstract:
An understanding of the complex interactions occurring between tumours and the immune system is a prerequisite for the rational design of effective cancer immunotherapies. To date, attention has focused mainly on the role the adaptive immune system plays in controlling tumourigenesis, with conventional T cells, which recognize peptide antigens presented by classical MHC molecules, coming under close scrutiny. Accumulating reports now suggest that an additional T-cell subset, known as CD1d-restricted natural killer T (NKT) cells, also plays a pivotal role in modulating antitumour responses. Found in both humans and mice, CD1d-restricted NKT cells are a highly specialized cell type that, in contrast to conventional T cells, recognize lipid/glycolipid antigens presented by the non-classical MHC molecule CD1d. Several features of NKT cells, including their ability to rapidly produce large quantities of cytokines upon primary stimulation, make them ideal targets for developing anticancer immunotherapies. This intriguing cell type is the focus of this review.
Insights
Natural killer T (NKT) cells, a specialized T-cell subset, play a crucial role in modulating anticancer immune responses. Their unique ability to recognize lipid antigens and rapidly produce cytokines makes them promising targets for novel cancer immunotherapies.
Area of Science:
- Immunology
- Oncology
- Cell Biology
Background:
- Effective cancer immunotherapies rely on understanding tumor-immune system interactions.
- Conventional T cells, recognizing peptide antigens via MHC molecules, have been the primary focus.
- Emerging evidence highlights the significant role of CD1d-restricted natural killer T (NKT) cells in antitumor responses.
Purpose of the Study:
- To review the pivotal role of CD1d-restricted NKT cells in modulating antitumor immunity.
- To explore the unique characteristics of NKT cells relevant to cancer immunotherapy development.
Main Methods:
- Review of existing literature on NKT cells and their interaction with tumors.
- Analysis of NKT cell antigen recognition and cytokine production capabilities.
Main Results:
- NKT cells recognize lipid/glycolipid antigens presented by the CD1d molecule, distinct from conventional T cells.
- NKT cells are capable of rapid, high-volume cytokine production upon initial stimulation.
- These features position NKT cells as promising candidates for cancer immunotherapy strategies.
Conclusions:
- CD1d-restricted NKT cells represent a critical, yet often overlooked, component of the immune system's control over tumors.
- The unique properties of NKT cells offer novel avenues for the rational design of next-generation cancer immunotherapies.
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