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    • 4. 发明申请
    • EXPANDING THE T CELL REPERTOIRE TO INCLUDE SUBDOMINANT EPITOPES BY VACCINATION WITH ANTIGENS DELIVERED AS PROTEIN FRAGMENTS OR PEPTIDE COCKTAILS
    • 通过用作为蛋白质片段或肽蛋白质递送的抗原进行疫苗扩增细胞代谢物来包含亚群体外周血单核细胞
    • WO2008000261A2
    • 2008-01-03
    • PCT/DK2007/000312
    • 2007-06-26
    • STATENS SERUM INSTITUTAAGAARD, ClausDIETRICH, JesANDERSEN, Peter
    • AAGAARD, ClausDIETRICH, JesANDERSEN, Peter
    • A61K39/00A61K39/02
    • A61K39/00A61K39/04A61K2039/55511A61K2039/5555Y02A50/412
    • The present invention teaches a convenient 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 major advantage of the present invention is that it 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 conveniently be boosted by the full size protein for maximum induction of an antibody response as well.
    • 本发明教导了一种方便的方法,通过用重叠片段的集合(例如10-30个细胞与2个(例如10-30个细胞)免疫)来诱导对预防或治疗慢性疾病具有重要意义的任何给定抗原的表位的显性和亚显性反应的广泛认识 -20 aa重叠)所需抗原在适当的佐剂中。 引导T细胞谱不仅包括当完整分子用于免疫并由慢性感染本身诱导时识别的免疫显性表位,而且还诱导对多个亚显性表位的更广泛和平衡的响应。 所产生的对亚显性抗原决定簇的T细胞应答对于防止慢性疾病是重要的,所述慢性疾病本身诱导仅针对免疫显性表位的反应。 本发明的主要优点在于,它不需要在人群中亚显性表位的精确定位和鉴定的先验知识,而且扩展了T细胞谱,从而扩展了特定T识别的表位总数 通过从少数免疫显性表位接种到多种疫苗相关表位的疫苗引发的细胞。 对于通过体液免疫控制的慢性疾病,通过肽混合物引发的T辅助细胞应答可以方便地由全尺寸蛋白质加强以最大限度地诱导抗体应答。