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    • 6. 发明公开
    • Expanding the t cell repertoire to include subdominant epitopes by vaccination with antigens delivered as protein fragments or peptide cocktails
    • T细胞组库的膨胀为包括通过接种亚优势表位与输送抗原蛋白质片段或肽的鸡尾酒
    • EP2402024A1
    • 2012-01-04
    • EP11182885.1
    • 2007-06-26
    • Statens Serum Institut
    • Aagaard, ClausDietrich, JesAndersen, Peter
    • A61K39/04A61K39/02A61K39/12A61K39/002
    • A61K39/00A61K39/04A61K2039/55511A61K2039/5555Y02A50/412
    • The present invention teaches a way of inducing a broad recognition of dominant and subdominant responses to epitopes of any given antigen of importance for prophylaxis or treatment of a chronic disease by immunizing with pools of overlapping fragments (synthetic peptides e.g. 10-30 mers with 2-20 aa overlap) of the desired antigen in appropriate adjuvants. The T cell repertoire is primed to include not only the immunodominant epitope recognized when the intact molecule is used for immunization and induced by the chronic infection itself, but induce a much broader and balanced response to a number of the subdominant epitopes as well. The resulting T-cell response to subdominant epitopes is important for protection against chronic diseases that on their own induces a response focused only towards immunodominant epitopes. The present invention requires no prior knowledge of the precise localisation and identity of the subdominant epitopes and their recognition in a human population, but expands the T-cell repertoire and thereby the total number of epitopes recognized by specific T cells primed by vaccination from a few immunodominant epitopes to multiple of epitopes of vaccine relevance. For chronic disease controlled by humoral immunity the T helper cell response primed by the peptide mix may be boosted by the full size protein for maximum induction of an antibody response as well.
    • 本发明通过用重叠片段的池进行免疫(合成肽,例如10-30聚体与2-教导诱导的显性和亚优势响应的广泛认识到用于预防或治疗慢性疾病的重要性的任何给定的抗原表位的一种方式 在适当的佐剂所需抗原的20个氨基酸重叠)。 的T细胞库被起动为不仅包括识别当完整的分子被用于免疫和由慢性感染本身引起的,但诱导了许多的优势表位的更广泛的和平衡的反应以及免疫优势表位。 亚优势抗原表位所产生的T细胞反应是针对慢性疾病对她们自己做了保护重要的诱导只注重对免疫表位的响应。 本发明要求的优势表位以及它们在人类群体识别的精确定位和身份的先验知识,但扩展T细胞所有组成成分,并通过从数由疫苗接种引发特异性T细胞识别的表位的从而总数 免疫抗原表位疫苗相关的多个表位。 对于慢性疾病由体液免疫控制由所述肽混合引发T辅助细胞应答可以通过全尺寸为蛋白质的抗体应答的诱导最大被升压为好。