发明名称 |
Combined Biomarker Measurement of Fibrosis |
摘要 |
Provided herein is a sandwich immunoassay for detecting cross-linked PIIINP that has at least two strands of PIIINP joined together by inter-strand cross-linking each having a C-terminal neo-epitope of PIIINP that is generated by N-protease cleavage of intact type III procollagen. A biological sample having the cross-linked PIIINP is contacted with a first surface-bound monoclonal antibody and then by a second monoclonal antibody, both specifically reactive with a neoepitope in the C-terminal sequence of PIIINP, and then binding of the second monoclonal antibody is determined. Also provided is a method for evaluating the efficacy of an antagonist drug targeting lysyl oxidases via the immunoassay and a kit containing a solid support binding the first monoclonal antibody and containing the second monoclonal antibody. |
申请公布号 |
US2016223568(A1) |
申请公布日期 |
2016.08.04 |
申请号 |
US201615014241 |
申请日期 |
2016.02.03 |
申请人 |
Genovese Federica;Nielsen Mette Juul;Larsen Lise;Oersnes-Leeming Diana Julie;Karsdal Morten |
发明人 |
Genovese Federica;Nielsen Mette Juul;Larsen Lise;Oersnes-Leeming Diana Julie;Karsdal Morten |
分类号 |
G01N33/68;G01N33/577 |
主分类号 |
G01N33/68 |
代理机构 |
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代理人 |
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主权项 |
1. A sandwich immunoassay for detecting in a biological sample cross-linked PIIINP, said cross-linked PIIINP comprising at least two strands of PIIINP joined together by inter-strand cross-linking, said method comprising:
contacting said biological sample comprising said cross-linked PIIINP with a first monoclonal antibody bound to a surface, wherein each strand of PIIINP comprised in the cross-linked PIIINP comprises a C-terminal neo-epitope of PIIINP generated by N-protease cleavage of intact type III procollagen; adding a second monoclonal antibody; and determining the amount of binding of said second monoclonal antibody; wherein both said first monoclonal antibody and said second monoclonal antibody are specifically reactive with said C-terminal neo-epitope of PIIINP, said neo-epitope being comprised in a C-terminal amino acid sequence CPTGXQNYSP-COOH, wherein X is Gly or Pro. |
地址 |
Frederiksberg DK |