Redirecting iNKT Cell Antitumor Immunity with α-GalCer/CD1d-scFv Fusion Proteins.

Invariant natural killer T (iNKT) cells display important properties that could bridge the innate and adaptive immunity, and they have been shown to play key roles in cancer immunotherapy. However, administration of iNKT cell agonist αGalCer fails to induce sustained antitumor immunity due to the rapid anergy induction after an initial strong activation. To this end, we have designed a recombinant CD1d protein that is fused to an anti-TAA scFv, which is able to recruit iNKT cells to the tumor site and induce tumor regression. Importantly, recombinant CD1d fusion proteins loaded with α-GalCer demonstrated sustained activation of iNKT cells upon repeated injections and superior tumor control, as compared to α-GalCer treatment.© 2021. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.

Citation

Lianjun Zhang, Alena Donda. Redirecting iNKT Cell Antitumor Immunity with α-GalCer/CD1d-scFv Fusion Proteins. Methods in molecular biology (Clifton, N.J.). 2021;2388:175-180

PMID: 34524672

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