Chernets Natalie, Kurpad Deepa S, Alexeev Vitali, Rodrigues Dario B, Freeman Theresa A
Department of Orthopaedic Surgery, Thomas Jefferson, University, 1015 Walnut Street, Philadelphia, Pennsylvania 19107.
Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107.
Plasma Process Polym. 2015 Dec;12(12):1400-1409. doi: 10.1002/ppap.201500140. Epub 2015 Oct 12.
Melanoma is one of the most aggressive metastatic cancers with resistance to radiation and most chemotherapy agents. This study highlights an alternative treatment for melanoma based on nanosecond pulsed dielectric barrier discharge (nsP DBD). We show that a single nsP DBD treatment, directly applied to a 5 mm orthotopic mouse melanoma tumor, completely eradicates it 66% ( = 6; ≤ 0.05) of the time. It was determined that reactive oxygen and nitrogen species produced by nsP DBD are the main cause of tumor eradication, while nsP electric field and heat generated by the discharge are not sufficient to kill the tumor. However, we do not discount that potential synergy between each plasma generated component (temperature, electric field and reactive species) can enhance the killing efficacy.
黑色素瘤是最具侵袭性的转移性癌症之一,对放疗和大多数化疗药物具有抗性。本研究重点介绍了一种基于纳秒脉冲介质阻挡放电(nsP DBD)的黑色素瘤替代治疗方法。我们发现,直接对5毫米原位小鼠黑色素瘤肿瘤进行单次nsP DBD治疗,有66%(n = 6;P≤0.05)的概率能将其完全根除。研究确定,nsP DBD产生的活性氧和氮物种是肿瘤根除的主要原因,而放电产生的nsP电场和热量不足以杀死肿瘤。然而,我们并不排除各等离子体产生成分(温度、电场和活性物种)之间的潜在协同作用可提高杀伤效果。