Interferon-α-inducible Dendritic Cells Matured with OK-432 Exhibit TRAIL and Fas Ligand Pathway-mediated Killer Activity
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Active human dendritic cells (DCs), which efficiently induce immune responses through their functions as antigen-presenting cells, exhibit direct anti-tumour killing activity in response to some pathogens and cytokines. These antigen-presenting and tumour killing abilities may provide a breakthrough in cancer immunotherapy. However, the mechanisms underlying this killer DC activity have not been fully proven, despite the establishment of interferon-α (IFN-α)-generated killer DCs (IFN-DCs). Here mature IFN-DCs (mIFN-DCs), generated from IFN-DCs primed with OK-432 (streptococcal preparation), exhibited elevated expression of CD86 and human leukocyte antigen-DR (minimum criteria for DC vaccine clinical trials) as well as antigen-presenting abilities comparable with those of mature IL-4-DCs (mIL-4-DCs). Interestingly, the killing activity of mIFN-DCs, which correlated with the expression of CD56 (natural killer cell marker) and was activated via the tumour necrosis factor-related apoptosis-inducing ligand (TRAIL) and Fas ligand pathway, was stronger than that of IFN-DCs and remarkably stronger than that of mIL-4-DCs. Therefore, mIFN-DCs exhibit great potential as an anti-cancer vaccine that would promote both acquired immunity and direct tumour killing.
Koya T, Yoshida K, Togi M, Niida Y, Togi S, Ura H Cancers (Basel). 2023; 15(14).
PMID: 37509288 PMC: 10377585. DOI: 10.3390/cancers15143627.
Torow N, Li R, Hitch T, Mingels C, Al Bounny S, van Best N Immunity. 2023; 56(6):1220-1238.e7.
PMID: 37130522 PMC: 10262694. DOI: 10.1016/j.immuni.2023.04.002.
Zheng X, Ma Y, Bai Y, Huang T, Lv X, Deng J Front Immunol. 2022; 13:984480.
PMID: 36389763 PMC: 9650243. DOI: 10.3389/fimmu.2022.984480.
Microbial-Derived Toll-like Receptor Agonism in Cancer Treatment and Progression.
Giurini E, Madonna M, Zloza A, Gupta K Cancers (Basel). 2022; 14(12).
PMID: 35740589 PMC: 9221178. DOI: 10.3390/cancers14122923.
Huang R, Pan J, Zhang Y, Qin Q, Chao N, Huang T J Healthc Eng. 2022; 2022:2518847.
PMID: 35070229 PMC: 8767371. DOI: 10.1155/2022/2518847.