Natural Adjuvants (PC and G2) Induce Activated Natural Killer Cells with NKG2D Expression and Cytotoxic Properties in Colorectal Cancer
Gastroenterology and Hepatology from Bed to Bench,
Vol. 15 No. 1 (2022),
30 January 2022
https://doi.org/10.22037/ghfbb.vi.2291
Abstract
Colorectal cancer is one of the most commonly reported cancers. Cell and gene therapies of cancer have received much attention in the past decade. Natural killer (NK) cells are an element of the innate immune system that can recognize and kill cancer cells and provide hope for cancer therapy. One of the current methods in tumor immunotherapy is NK cell therapy. Here, it was proposed that PC and G2 adjuvants can function as NK activator to convert these cells into the cytotoxic natural killer cell for further cytotoxicity effect.
For this purpose, 12 Patients with colorectal cancer were qualified for this study. Peripheral blood mononuclear cell (PBMC) of each patient with two distinctive concentrations ( and 5 Cells/well) was treated with Interleukin2 (IL2), PC, and G2 adjuvant separately. The NK cell's surface marker, including CD16, CD56, and NKG2D, was evaluated by flow cytometry. The cytotoxicity of treated PBMCs as effector cells against NK sensitive cells line (K562) was evaluated with the LDH assay method.
The results showed that the PC and G2 adjuvants could induce cytotoxic NK cells with high expression of NKG2D. Besides, the PC and G2 adjuvants could induce cytotoxic natural killer cells with cytotoxicity against K562 cells.
Finally, it can be stated that the PC and G2 adjuvants could be a candidate to induce cytotoxic killer cell.
- Colorectal cancer, natural killer cells, PC adjuvant, G2 adjuvant, NKG2D, Cytotoxicity
How to Cite
References
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