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    • 6. 发明授权
    • Malarial immunogen
    • 疟疾免疫原
    • US4886782A
    • 1989-12-12
    • US19000
    • 1987-02-26
    • Michael A. GoodJay BerzofskyLouis H. Miller
    • Michael A. GoodJay BerzofskyLouis H. Miller
    • A61K39/00C07K14/445
    • C07K14/445A61K39/00Y10S514/895
    • The circumsporozoite (CS) protein of Plasmodium falciparum has been analyzed to develop a new anti-sporozoite malarial vaccine. Localization of sites for T-cell recognition on this molecule is critical for vaccine design. By using an algorithm designed to predict T-cell sites and a large panel of H-2 congenic mice, a major nonrepetitive T-cell was located. When a synthetic peptide corresponding to this site was covalently linked to the major B-cell site on the molecule, an immunogen capable of eliciting a high titer antibody response was formed. This peptide sequence is capable of priming helper T-cells for a secondary response to the intact CS protein. This site represents the first helper T-cell site described for the CS molecule outside of the repetitive region, and is a major immunodominant T-site on the molecule. The approach described herein is useful in the rational design and construction of more efficacious vaccines.
    • 已分析恶性疟原虫的环孢子(CS)蛋白,开发出新的抗孢子疟原虫疫苗。 该分子上T细胞识别位点的定位对疫苗设计至关重要。 通过使用设计用于预测T细胞位点和大面积H-2同系小鼠的算法,定位了一个主要的无应答T细胞。 当对应于该位点的合成肽与分子上的主要B细胞位点共价连接时,形成能够产生高效价抗体应答的免疫原。 该肽序列能够引发辅助性T细胞用于对完整的CS蛋白的二次应答。 该位点代表了重复区域以外的CS分子描述的第一个辅助T细胞位点,并且是该分子上主要的免疫显性T位点。 本文描述的方法在合理设计和构建更有效的疫苗中是有用的。