DNA-dependent protein kinase is one of a subset of autoantigens specifically cleaved early during apoptosis.
DNA-dependent protein kinase is one of a subset of autoantigens specifically cleaved early during apoptosis.
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DOI:
10.1084/jem.182.6.1625
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发表时间:
1995-12-01
期刊:
影响因子:
--
通讯作者:
Rosen A
中科院分区:
文献类型:
--
作者:
Casciola-Rosen LA;Anhalt GJ;Rosen A
Proteolytic cleavage of key substrates appears to be an important biochemical mechanism underlying the apoptotic process, and the centrality of interleukin 1 beta-converting enzyme (ICE)-like proteases as mediators of apoptosis has been suggested. The identification of the relevant substrates of the ICE protease family during apoptosis therefore constitutes a major challenge. Using human autoantibodies, we demonstrate here that a subset of autoantigens is specifically cleaved early during apoptosis. One of these cleaved molecules is identified as the catalytic subunit of the DNA-dependent protein kinase. The time courses of all proteolytic cleavages are identical and coincide with the onset of morphologic apoptosis. Furthermore, all cleavages share the same inhibition characteristics, which implicate an ICE-like activity(ies). We propose that cleavage of these autoantigens targets these molecules for an autoimmune response by revealing immunocryptic fragments in a proimmune apoptotic setting. Study of the immunogenicity of these fragments may yield insights into the autoimmune targeting of molecules. Moreover, the autoantibodies described will be valuable tools for the elucidation of mechanistically important proteolytic steps along the apoptotic pathway.
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DOI:
10.1084/jem.177.2.567
发表时间:
1993-02-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Mamula MJ
通讯作者:
Mamula MJ
DOI:
10.1084/jem.181.6.2049
发表时间:
1995-06-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Ajmani AK;Satoh M;Reap E;Cohen PL;Reeves WH
通讯作者:
Reeves WH
影响因子:
56.9
作者:
KIRCHGESSNER, CU;PATIL, CK;BROWN, JM
通讯作者:
BROWN, JM
DOI:
10.1073/pnas.85.8.2543
发表时间:
1988-04-01
影响因子:
11.1
作者:
DARPA, P;MACHLIN, PS;EARNSHAW, WC
通讯作者:
EARNSHAW, WC
影响因子:
10.5
作者:
KUMAR, S;KINOSHITA, M;JENKINS, NA
通讯作者:
JENKINS, NA