发明名称 |
Multiple variants of meningococcal protein NBM1870 |
摘要 |
Meningococcal protein NMB 1870 has been described in the prior art. The inventors have found that NMB 1870 is an effective antigen for eliciting anti-meningococcal antibody responses, and that it is expressed across all meningococcal serogroups. Forty-two different NMB 1870 sequences have been identified, and these group into three variants. Serum raised against a given variant is bactericidal within the same variant group, but is not active against strains which express one of the other two variants i.e. there is intra-variant cross-protection, but not inter-variant cross-protection. For maximum cross-strain efficacy, therefore, the invention uses mixture comprising different variants of NMB 1870. |
申请公布号 |
US8980286(B2) |
申请公布日期 |
2015.03.17 |
申请号 |
US201213364264 |
申请日期 |
2012.02.01 |
申请人 |
Novartis AG |
发明人 |
Comanducci Maurizio;Pizza Mariagrazia |
分类号 |
A61K39/095;C07K14/22 |
主分类号 |
A61K39/095 |
代理机构 |
Morrison & Foerster LLP |
代理人 |
Morrison & Foerster LLP |
主权项 |
1. A composition comprising an aluminum salt adjuvant, a histidine buffer, and at least two of the following isolated antigens:
(a) a first isolated protein, comprising an amino acid sequence having at least 85% sequence identity to SEQ ID NO: 24; (b) a second isolated protein, comprising an amino acid sequence having at least 85% sequence identity to SEQ ID NO: 33; and (c) a third isolated protein, comprising an amino acid sequence having at least 85% identity to SEQ ID NO: 41, wherein: isolated protein (a) has less than 70% sequence identity to isolated protein (b); isolated protein (a) has less than 70% sequence identity to isolated protein (c); and isolated protein (b) has less than 70% sequence identity to isolated protein (c). |
地址 |
Basel CH |