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Updated: May 1, 2026

Isolation and Expansion of Cytotoxic Cytokine-induced Killer T Cells for Cancer Treatment
Published on: January 24, 2020
An update on new adoptive immunotherapy strategies for solid tumors with cytokine-induced killer cells
Clara E Jäkel1, Ingo G H Schmidt-Wolf
1University Hospital Bonn, Center for Integrated Oncology (CIO) , Bonn , Germany.
Introduction:
Cytokine-induced killer (CIK) cells are mainly CD3(+)CD56(+) NKT cells exhibiting non-MHC-restricted cytotoxicity against a broad range of tumors. Much research is going on to improve CIK cell effectivity and to evaluate the clinical benefit of different combinations with conventional therapies.
Areas Covered:
This review provides an update on in vitro/in vivo studies and clinical trials applying CIK cells for the treatment of solid tumors. This comprises attempts using additional cytokines, genetic engineering and combinations with different conventional and modern therapies.
Expert Opinion:
Since our last review, much effort has been made to improve CIK cell cytotoxicity and clinical effectivity. Targeted CIK cell therapy and combinations of CIK cells with antiangiogenic drugs or oncolytic viruses are examples of recent outstanding achievements in the field of adoptive CIK cell therapy. The clinical application of CIK cells in combination with conventional therapies, especially, obtained promising results. However, the best combination and the optimal therapy schedule have yet to be defined.
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