The publication detail shows the title, authors (with indicators showing other profiled authors), information on the publishing organization, abstract and a link to the article in PubMed. This abstract is what is used to create the fingerprint of the publication. If any grants are referenced by the publication, they will be listed here as well.
Early processing of Bid and caspase-6, -8, -10, -14 in the canine brain during cardiac arrest and resuscitation.
Maryla Krajewska; Robert E Rosenthal; Jowita Mikolajczyk; Henning R Stennicke; Thomas Wiesenthal; Juergen Mai; Mikihiko Naito; Guy S Salvesen; John C Reed; Gary Fiskum; et al. (Profiled Authors: Gary M Fiskum; Robert E Rosenthal)
The Burnham Institute, La Jolla, CA 92037, USA.
Experimental neurology 2004;189(2):261-79.
A clinically relevant model of transient global brain ischemia involving cardiac arrest followed by resuscitation in dogs was utilized to study the expression and proteolytic processing of apoptosis-regulatory proteins. In the hippocampus, an increase in pro-apoptotic Bcl-2 family proteins Bcl-XS and Bak was detected, concomitant with proteolysis of Bcl-XL and Bcl-2, following ischemia-reperfusion injury. Also, biphasic cleavage of Bid was found in this region of the brain, with early generation of tBid-p11 within 10 min of cardiac arrest, followed by generation of tBid-p15 within 30-min reperfusion, consistent with activation of this pro-apoptotic protein. In addition, cardiac arrest and resuscitation induced early, reperfusion-dependent proteolytic processing of pro-caspase-6, -8, -10, and -14, which preceded caspase-3 activation. Immunohistochemical analysis using antibodies, which preferentially recognize processed caspase-3, -6, -8, and -10, provided evidence of time-dependent activation of these proteases in both neurons and glia in ischemia-sensitive regions of the brain. In conclusion, extremely rapid, cell-selective processing of apoptosis-regulatory proteins occurs in a clinically relevant model of ischemic brain injury caused by cardiac arrest and resuscitation. The early cleavage of Bid and rapid depletion of 32-kDa pro-caspase-14 from the canine hippocampus after induction of ischemia suggests the involvement of calpains in the processing of these proteins. Demonstration of in vitro cleavage of recombinant mouse caspase-14 by calpain I in the present study lends support to this hypothesis, further implicating cross-talk between different protease families in the pathophysiology of ischemic neural cell death.
1 Originating Grant
1 May 1995 - 31 December 2008
NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE
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