Targeting Calpain for Heart Failure Therapy: Implications From Multiple Murine Models.

Targeting Calpain for Heart Failure Therapy: Implications From Multiple Murine Models.
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靶向钙蛋白酶治疗心力衰竭

DOI:
10.1016/j.jacbts.2018.05.004
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发表时间:
2018-08
期刊:
JACC. Basic to translational science
影响因子:
--
通讯作者:
Song LS
Song LS
中科院分区:
其他
文献类型:
--
作者:
Wang Y;Chen B;Huang CK;Guo A;Wu J;Zhang X;Chen R;Chen C;Kutschke W;Weiss RM;Boudreau RL;Margulies KB;Hong J;Song LS

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钙蛋白酶在人类心力衰竭和不同病因的啮齿动物心力衰竭模型中被过度激活。MDL-28170抑制钙蛋白酶活性可通过保留心力衰竭小鼠模型中JP 2表达和T-小管超微结构的完整性来预防心功能障碍。JP 2的过表达延迟了由钙蛋白酶过度激活引起的早期心脏性猝死和心力衰竭的发生。心力衰竭仍然是发达国家发病率和死亡率的主要原因。仍然强烈需要设计新的基于机制的心力衰竭治疗方法。许多研究表明钙依赖性蛋白酶钙蛋白酶在心脏生理和病理中的重要性。然而,目前没有药物正在开发或在人类患者中测试以靶向钙蛋白酶用于心力衰竭治疗。本文中的数据表明,抑制钙蛋白酶活性在多种心力衰竭啮齿动物模型中保护免受有害的超微结构重塑和心脏功能障碍,提供了令人信服的证据,证明钙蛋白酶抑制是心力衰竭治疗的有希望的治疗策略。
Calpain is hyperactivated in human failing hearts and rodent heart failure models of different etiologies. Inhibition of calpain activity with MDL-28170 protects against cardiac dysfunction by preserving JP2 expression and T-tubule ultrastructural integrity in murine models of heart failure. Overexpression of JP2 delays the onset of early cardiac sudden death and heart failure, induced by calpain overactivation. Heart failure remains a major cause of morbidity and mortality in developed countries. There is still a strong need to devise new mechanism-based treatments for heart failure. Numerous studies have suggested the importance of the Ca2+-dependent protease calpain in cardiac physiology and pathology. However, no drugs are currently under development or testing in human patients to target calpain for heart failure treatment. Herein the data demonstrate that inhibition of calpain activity protects against deleterious ultrastructural remodeling and cardiac dysfunction in multiple rodent models of heart failure, providing compelling evidence that calpain inhibition is a promising therapeutic strategy for heart failure treatment.
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