Mitochondrial therapy improves limb perfusion and myopathy following hindlimb ischemia.
Mitochondrial therapy improves limb perfusion and myopathy following hindlimb ischemia.
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线粒体治疗可改善后肢缺血后的肢体灌注和肌病。
DOI:
10.1016/j.yjmcc.2016.05.015
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发表时间:
2016
影响因子:
5
通讯作者:
McClung,JosephM
中科院分区:
文献类型:
--
作者:
Ryan,TerenceE;Schmidt,CameronA;Alleman,RickJ;Tsang,AlvinM;Green,ThomasD;Neufer,PDarrell;Brown,DavidA;McClung,JosephM
Critical limb ischemia is a devastating manifestation of peripheral arterial disease with no effective strategies for improving morbidity and mortality outcomes. We tested the hypothesis that cellular mitochondrial function is a key component of limb pathology and that improving mitochondrial function represents a novel paradigm for therapy. BALB/c mice were treated with a therapeutic mitochondrial-targeting peptide (MTP-131) and subjected to limb ischemia (HLI). Compared to vehicle control, MTP-131 rescued limb muscle capillary density and blood flow (64.7 ± 11% of contralateral vs. 39.9 ± 4%), and improved muscle regeneration. MTP-131 also increased electron transport system flux across all conditions at HLI day-7. In vitro, primary muscle cells exposed to experimental ischemia demonstrated markedly reduced (~ 75%) cellular respiration, which was rescued by MTP-131 during a recovery period. Compared to muscle cells, endothelial cell (HUVEC) respiration was inherently protected from ischemia (~ 30% reduction), but was also enhanced by MTP-131. These findings demonstrate an important link between ischemic tissue bioenergetics and limb blood flow and indicate that the mitochondria may be a pharmaceutical target for therapeutic intervention during critical limb ischemia.
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影响因子:
9
作者:
Thompson,JR;Swanson,SA;Haynatzki,G;Koutakis,P;Johanning,JM;Reppert,PR;Papoutsi,E;Miserlis,D;Zhu,Z;Casale,GP;Pipinos,II
通讯作者:
Pipinos,II
影响因子:
24
作者:
Jain A;Liu K;Ferrucci L;Criqui MH;Tian L;Guralnik JM;Tao H;McDermott MM
通讯作者:
McDermott MM
影响因子:
6
作者:
McClung, Joseph M.;McCord, Timothy J.;Kontos, Christopher D.
通讯作者:
Kontos, Christopher D.
影响因子:
5.8
作者:
Zhao, KS;Luo, GX;Szeto, HH
通讯作者:
Szeto, HH
影响因子:
5.2
作者:
Spence M. Taylor;D. Cull;C. Kalbaugh;H. Senter;E. Langan;C. Carsten;J. York;B. Snyder;B. Gray;Mark P. Androes;D. Blackhurst
通讯作者:
D. Blackhurst