Meprin A and meprin alpha generate biologically functional IL-1beta from pro-IL-1beta.
Meprin A and meprin alpha generate biologically functional IL-1beta from pro-IL-1beta.
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DOI:
10.1016/j.bbrc.2008.12.161
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发表时间:
2009-02-20
影响因子:
3.1
通讯作者:
Kaushal, Gur P.
中科院分区:
文献类型:
--
作者:
Herzog, Christian;Haun, Randy S.;Kaushal, Varsha;Mayeux, Philip R.;Shah, Sudhir V.;Kaushal, Gur P.
关键词:
The present study demonstrates that the oligomeric metalloendopeptidase meprin A purified from kidney cortex and recombinant meprin α are capable of generating biologically active IL-1β from its precursor pro-IL-1β. Amino-acid sequencing analysis reveals that meprin A and meprin α cleave pro-IL-1β at the His115-Asp116 bond, which is one amino acid N-terminal to the caspase-1 cleavage site and five amino acids C-terminal to the meprin β site. The biological activity of the pro-IL-1β cleaved product produced by meprin A, determined by proliferative response of helper T-cells, was 3-fold higher to that of the IL-1β product produced by meprin β or caspase-1. In a mouse model of sepsis induced by cecal ligation puncture that results in elevated levels of serum IL-1β, meprin inhibitor actinonin significantly reduces levels of serum IL-1β. Meprin A and meprin α may therefore play a critical role in the production of active IL-1β during inflammation and tissue injury.
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影响因子:
3.1
作者:
Jean-Baptiste, Eddy
通讯作者:
Jean-Baptiste, Eddy
影响因子:
3.7
作者:
Bylander, John E.;Bertenshaw, Greg P.;Bond, Judith S.
通讯作者:
Bond, Judith S.
影响因子:
4.8
作者:
Bertenshaw, GP;Turk, BE;Bond, JS
通讯作者:
Bond, JS
影响因子:
6.5
作者:
Becker-Pauly, Christoph;Hoewel, Markus;Stoecker, Walter
通讯作者:
Stoecker, Walter
DOI:
10.1046/j.1432-1327.1999.00071.x
发表时间:
1999-01-01
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
--
作者:
Lottaz, D;Hahn, D;Sterchi, EE
通讯作者:
Sterchi, EE