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Investigating the Effect of Cgrp78 Vaccine Against Different Cancer Cells and Its Role in Reducing Melanoma Metastasis Publisher



Zare H1 ; Bakherad H2, 3 ; Esfahani AN2 ; Aghamollaei H4 ; Gargari SLM5 ; Aliomrani M6 ; Ebrahimizadeh W7
Authors

Source: Research in Pharmaceutical Sciences Published:2024


Abstract

Background and purpose: Treatment of malignancies with chemotherapy and surgery is often associated with disease recurrence and metastasis. Immunotherapy improves cancer treatment by creating an active response against tumor antigens. Various cancer cells express a large amount of glucose-regulated protein 78 (GRP78) protein on their surface. Stimulating the immune system against this antigen can expose cancer cells to the immune system. Herein, we investigated the effectiveness of a cGRP78-based vaccine against different cancer cells. Experimental approach: BALB/c mice were immunized with the cGRP78. The humoral immune response against different cancer cells was assessed by Cell-ELISA. The cellular immunity response was determined by splenocyte proliferation assay with different cancer antigens. The effect of vaccination on metastasis was investigated in vaccinated mice by injecting melanoma cancer cells into the tail of mice. Findings/Results: These results indicated that the cGRP78 has acceptable antigenicity and stimulates the immune system to produce antibodies. After three injections, the amount of produced antibody was significantly different from the control group. Compared to the other three cell types, Hela and HepG2 showed the highest reaction to the serum of vaccinated mice. Cellular immunity against the B16F10 cell line had the best results compared to other cells. The metastasis results showed that after 30 days, the growth of B16F10 melanoma cancer cells was not noticeable in the lung tissue of vaccinated mice. Conclusion and implications: Considering the resistance of vaccinated mice to metastasis, this vaccine offers a promising prospect for cancer treatment by inhibiting the spread of cancer cells. © 2024 Wolters Kluwer Medknow Publications. All rights reserved.
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