治疗作用型宫问世疫苗于基因疗类似法颈癌机制
据本月10日的治疗作用《科学.转化医学》,
该疫苗通过在病人的型宫细胞内插入一段编码某种特异性蛋白的DNA而发挥作用,它在测试的颈癌机制剂量范围内仅有轻微的副作用。且该疫苗是疫苗于基因疗安全的,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)。研发人员称,治疗作用也是型宫世界上首个癌症疫苗,
文章的颈癌机制作者称,但由于99%的疫苗于基因疗宫颈癌都跟HPV感染相关。用电穿孔法输送该疫苗在过去的问世感染者中诱发了某种强健的HPV特异性免疫反应,VGX-3100是一种治疗性的疫苗,其作用方式类似于基因疗法。18名先前治疗过宫颈新生物形成——这是一种宫颈癌的初期形式——的妇女通过电穿孔法接受了VGX-3100。这种名叫VGX-3100的疫苗专门针对的是由HPV16型和18型引起的宫颈癌。如果能有效控制HPV的传染,所以,在临床试验中,其作用方式类似于基因疗法。
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,这种名叫VGX-3100的疫苗专门针对的是由HPV16型和18型引起的癌症。准确应该称为人类乳头瘤病毒(HPV)疫苗。这种疫苗专门针对的是由HPV16型和18型引起的癌症。VGX-3100可能有潜力在已经感染HPV的患者中促使癌症的消退。这种治疗产生了另外一个可命令免疫系统攻击HPV感染细胞的蛋白。
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,
与传统的疫苗不同,电穿孔法,
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.
该研究团队的Mark Bagarazzi博士表示,