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Updated: Jun 21, 2026

Purification and Expansion of Mouse Invariant Natural Killer T Cells for in vitro and in vivo Studies
Published on: February 15, 2021
Human invariant natural killer T cells: implications for immunotherapy
Tsuyoshi Takahashi1, Mineo Kurokawa2
1Department of Hematology and Oncology, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
Human invariant natural killer T cells (iNKTs) are crucial immune cells recognizing glycolipids. Their potent anti-tumor and regulatory functions highlight their potential for innovative immune-cell therapies.
Area of Science:
- Immunology
- Cell Biology
- Cancer Research
Background:
- Invariant natural killer T cells (iNKTs) possess a unique T-cell receptor.
- iNKTs recognize glycolipids presented by CD1d molecules, distinct from conventional peptide recognition.
- These cells are implicated in diverse immunological processes, including anti-tumor, transplantation, allergic, autoimmune, and microbial immunity.
Purpose of the Study:
- To review the immune responses mediated by human iNKTs.
- To focus on the roles of iNKTs in tumor and transplantation immunity.
- To discuss the clinical application potential of iNKTs.
Main Methods:
- Literature review of immunological studies.
- Analysis of iNKT cell functions in various immune contexts.
- Evaluation of iNKT cell-based therapeutic strategies.
Main Results:
- Human iNKTs exhibit significant biological activities, including potent cytokine production and anti-tumor effects.
- iNKTs play a regulatory role, similar to regulatory T cells.
- Their high biological activity suggests therapeutic utility.
Conclusions:
- Human iNKTs are promising candidates for immune-cell therapy due to their potent effector functions.
- Further research into iNKT-mediated responses in tumor and transplantation immunity can inform clinical strategies.
- iNKTs represent a valuable tool for developing novel immunotherapies.
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