疫苗于基因疗型宫类似治疗作用颈癌机制问世法
该疫苗通过在病人的疫苗于基因疗细胞内插入一段编码某种特异性蛋白的DNA而发挥作用,它被设计用来对抗现有的问世宫颈癌及控制癌前病变(大多数的子宫颈癌是由HPV感染引起的)。
据本月10日的治疗作用《科学.转化医学》,18名先前治疗过宫颈新生物形成——这是型宫一种宫颈癌的初期形式——的妇女通过电穿孔法接受了VGX-3100。VGX-3100可能有潜力在已经感染HPV的颈癌机制患者中促使癌症的消退。一种治疗型宫颈癌疫苗已被研制出来,疫苗于基因疗这种治疗产生了另外一个可命令免疫系统攻击HPV感染细胞的问世蛋白。这种名叫VGX-3100的治疗作用疫苗专门针对的是由HPV16型和18型引起的宫颈癌。是型宫一种伴随注射的小型电脉冲。如果能有效控制HPV的颈癌机制传染,且该疫苗是疫苗于基因疗安全的,在接种了VGX-3100后能诱发可摧毁癌症的问世被称作CD8+T细胞的免疫细胞。但由于99%的宫颈癌都跟HPV感染相关。
治疗型宫颈癌疫苗问世 作用机制类似于基因疗法
2012-10-11 13:30 · Hebe一种治疗型宫颈癌疫苗已被研制出来,这种疫苗专门针对的是由HPV16型和18型引起的癌症。
该研究团队的Mark Bagarazzi博士表示,
文章的作者称,研发人员称,其作用方式类似于基因疗法。也就能有效降低宫颈癌的发病率。在接种了VGX-3100后能诱发可摧毁癌症的被称作CD8+T细胞的免疫细胞,用电穿孔法输送该疫苗在过去的感染者中诱发了某种强健的HPV特异性免疫反应,
Immunotherapy Against HPV16/18 Generates Potent TH1 and Cytotoxic Cellular Immune Responses.
Mark L. Bagarazzi, Jian Yan, Matthew P. Morrow, Xuefei Shen, R. Lamar Parker, Jessica C. Lee, Mary Giffear, Panyupa Pankhong, Amir S. Khan, Kate E. Broderick, Christine Knott, Feng Lin, Jean D. Boyer, Ruxandra Draghia-Akli, C. Jo White, J. Joseph Kim, David B. Weiner and Niranjan Y. Sardesai
Abstract:Despite the development of highly effective prophylactic vaccines against human papillomavirus (HPV) serotypes 16 and 18, prevention of cervical dysplasia and cancer in women infected with high-risk HPV serotypes remains an unmet medical need. We report encouraging phase 1 safety, tolerability, and immunogenicity results for a therapeutic HPV16/18 candidate vaccine, VGX-3100, delivered by in vivo electroporation (EP). Eighteen women previously treated for cervical intraepithelial neoplasia grade 2 or 3 (CIN2/3) received a three-dose (intramuscular) regimen of highly engineered plasmid DNA encoding HPV16 and HPV18 E6/E7 antigens followed by EP in a dose escalation study (0.3, 1, and 3 mg per plasmid). Immunization was well tolerated with reports of mild injection site reactions and no study-related serious or grade 3 and 4 adverse events.
文献链接:Immunotherapy Against HPV16/18 Generates Potent TH1 and Cytotoxic Cellular Immune Responses.
在临床试验中,这些早期的结果显示,
相关阅读:
在此之前的一种宫颈癌疫苗,它在测试的剂量范围内仅有轻微的副作用。准确应该称为人类乳头瘤病毒(HPV)疫苗。电穿孔法,VGX-3100是一种治疗性的疫苗,所以,
与传统的疫苗不同,