Manchester Medical School, The University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, United Kingdom.
Cancer Treat Rev. 2013 Dec;39(8):833-8. doi: 10.1016/j.ctrv.2013.06.004. Epub 2013 Jul 9.
The development of brain metastases is common in patients with metastatic melanoma and heralds a particularly poor prognosis. The development of the immunological agent ipilimumab and targeted treatments such as the selective BRAF inhibitor vemurafenib have revolutionised the treatment of metastatic disease. Evidence from clinical trials suggest these drugs may be effective in the treatment of brain metastases from melanoma. However efficacy may be limited by a lack of penetration of the blood brain barrier (BBB) and by multi substrate efflux pumps expressed on the BBB. The role and sequencing of radiotherapy, both whole brain and stereotactic radiotherapy, is yet to be determined but combinations of radiotherapy and systemic therapies may further increase the effects of these drugs on brain metastases. Considering the impact of brain metastases on morbidity and mortality in metastatic melanoma, future research into systemic drug therapy for the treatment of brain metastases and improvements in BBB penetrance should be a priority.
脑转移是转移性黑色素瘤患者中常见的情况,预示着预后特别差。免疫药物伊匹单抗和针对选择性 BRAF 抑制剂维莫非尼等靶向治疗的发展彻底改变了转移性疾病的治疗方法。临床试验的证据表明,这些药物可能对黑色素瘤脑转移有效。然而,由于血脑屏障 (BBB) 的通透性不足以及 BBB 上表达的多底物外排泵的存在,疗效可能受到限制。放疗的作用和顺序,包括全脑放疗和立体定向放疗,仍有待确定,但放疗与全身治疗相结合可能会进一步提高这些药物对脑转移的疗效。考虑到脑转移对转移性黑色素瘤发病率和死亡率的影响,未来应优先研究系统药物治疗脑转移以及提高 BBB 通透性的方法。