高级检索

疟疾疫苗的研发进展

Progress in the development of malaria vaccines

  • 摘要: 疟疾是一种通过雌蚊叮咬、由疟原虫引起的传染病,对全球公共卫生构成重大威胁。2000年以来人类通过各种手段来防控疟疾,但受到COVID-19的影响,疟疾病例不降反升,因此疟疾疫苗成为了控制疟疾的重点之一。感染人类的疟原虫主要包括恶性疟原虫和间日疟原虫等。疟原虫的生命周期包括红前期、血液期和蚊期。已通过世界卫生组织预认证的两款疫苗RTS,S/AS01E和R21/Matrix-M以恶性疟原虫红前期蛋白为靶点,临床试验数据显示降低了儿童疟疾的病死率,目前已在非洲进行大规模接种。而针对其他阶段和靶点的疟疾疫苗还没有一个进入Ⅲ期临床试验。本文描述了疟疾的危害及防控,总结了近几年针对红外期、血液期、蚊期疟原虫生命周期及间日疟原虫设计的疟疾疫苗,并展示了疟疾疫苗研发领域的挑战及思路,为新型疟疾疫苗的研发提供参考。

     

    Abstract: Malaria is an infectious disease caused by Plasmodium through the bite of female mosquitoes, posing a significant threat to global public health. Since 2000, humans have adopted various measures to prevent and control malaria, but due to the impact of COVID-19, the number of malaria cases has increased rather than decreased, making malaria vaccines one of the focal points for controlling the disease. The Plasmodium that infects humans mainly includes Plasmodium falciparum and Plasmodium vivax. The life cycle of Plasmodium includes the pre-erythrocytic stage, the blood stage, and the mosquito stage. Two vaccines, RTS,S/AS01E, and R21/Matrix-M, which have been pre-qualified by the World Health Organization to target the pre-erythrocytic proteins of Plasmodium falciparum. The clinical trial data show reduction in malaria mortality rates among children, and mass vaccination is currently underway in Africa. However, no malaria vaccines targeting other stages or antigens have yet entered phase III clinical trials. This article describes the hazards and prevention of malaria, summarizes malaria vaccines designed in recent years for the three stages of the Plasmodium life cycle: the pre-erythrocytic stage, the blood stage, and the mosquito stage, and demonstrates the challenges and ideas in the field of malaria vaccine research and development, aiming to provide some reference for the development of novel malaria vaccines.

     

/

返回文章
返回