Iranian
Biomedical Journal
Volume 30, Issue 2 (Supplementary 2026)
IBJ 2026, 30(2): 1-1 |
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Bousaeedi F, Rafiei A, Rostami Z. Integrative Modulation of Angiogenesis and Oxidative Stress by Cold Atmospheric Plasma Combined with Anti-PD-1 Therapy in a Mouse Model of Melanoma. IBJ 2026; 30 (2) :1-1
URL: http://ibj.pasteur.ac.ir/article-1-5488-en.html
URL: http://ibj.pasteur.ac.ir/article-1-5488-en.html
Abstract:
Introduction: Melanoma is a highly aggressive form of skin cancer. While immune checkpoint inhibitors, such as anti-PD-1, are effective, the responses among patients vary significantly. Therefore, complementary therapeutic strategies are needed. Cold atmospheric plasma (CAP), which generates reactive species, can influence the tumor microenvironment, oxidative stress, and angiogenesis. This study examined the effects of CAP, alone and in combination with anti-PD-1, on the expression of EGFR and GJA1 in a murine melanoma model.
Materials and Methods: B16-F10 melanoma cells were injected subcutaneously into female C57BL/6 mice. After tumor formation, the animals were divided into five treatment groups: control, CAP, anti-PD-1, CAP + anti-PD-1, and dacarbazine. At the endpoint, tumor tissues were collected, and the mRNA levels of EGFR and GJA1 were quantified using RT-qPCR.
Results and Discussion: The CAP + anti-PD-1 combination resulted in a significantly greater downregulation of EGFR and GJA1expression compared to the monotherapies, indicating a synergistic effect between the two treatments. Considering that EGFR promotes angiogenesis and GJA1 modulates cellular redox signaling and intercellular communication, the combination therapy appears to exert a strong inhibitory effect on these pathways.
Conclusion: Our findings suggest that CAP-based combination therapy could serve as a promising strategy for enhancing the efficacy of immunotherapy in melanoma.
Materials and Methods: B16-F10 melanoma cells were injected subcutaneously into female C57BL/6 mice. After tumor formation, the animals were divided into five treatment groups: control, CAP, anti-PD-1, CAP + anti-PD-1, and dacarbazine. At the endpoint, tumor tissues were collected, and the mRNA levels of EGFR and GJA1 were quantified using RT-qPCR.
Results and Discussion: The CAP + anti-PD-1 combination resulted in a significantly greater downregulation of EGFR and GJA1expression compared to the monotherapies, indicating a synergistic effect between the two treatments. Considering that EGFR promotes angiogenesis and GJA1 modulates cellular redox signaling and intercellular communication, the combination therapy appears to exert a strong inhibitory effect on these pathways.
Conclusion: Our findings suggest that CAP-based combination therapy could serve as a promising strategy for enhancing the efficacy of immunotherapy in melanoma.
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