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洛斯马皮莫德通过减弱衰老和炎症通路来改善多克索鲁比诱导的心脏毒性
Mohamed S Dabour1, Ibrahim Y Abdelgawad2, Bushra Sadaf3
1Department of Experimental and Clinical Pharmacology, University of Minnesota College of Pharmacy, Minneapolis, MN 55455, USA; Department of Clinical Pharmacy, Faculty of Pharmacy, Tanta University, Egypt.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie
|August 15, 2024
概括
洛斯马皮莫德 (LOSM) 治疗通过抑制p38 MAPK激活,衰老和炎症来减少多克索鲁比 (DOX) 诱导的心脏损伤. 这项研究强调p38 MAPK抑制是预防DOX心脏毒性的有希望的策略.
科学领域:
- 药理学 药理学是指药理学的学科.
- 心脏病学 心脏病学
- 分子生物学分子生物学
背景情况:
- 多克索鲁比 (DOX) 化疗导致不可逆转的心脏毒性,限制了其临床使用.
- 由DOX引起的心脏毒性与细胞衰老和p38 MAPK通路激活有关.
- 洛斯马皮莫德 (LOSM) 是一种p38 MAPK抑制剂,已显示出心脏保护和抗炎作用.
研究的目的:
- 研究LOSM在预防小鼠中多克索鲁比辛诱导的慢性心脏毒性的疗效.
- 在DOX治疗的背景下,评估LOSM对p38 MAPK激活,衰老,炎症和线粒体功能的影响.
主要方法:
- C57BL/6N小鼠接受了LOSM或对照饮食,随后注射了多克索鲁比 (DOX) 或盐水.
- 评估心脏功能使用心声回声学.
- 分析了p38 MAPK,JNK和ERK1/2的激活,衰老标记 (p21Cip1),炎症标记 (IL-1α,IL-6) 和线粒体基因表达 (mitofusin2).
主要成果:
- LOSM显著减弱了DOX诱导的p38 MAPK激活和心脏功能障碍.
- LOSM取消了老化标记物p21Cip1.1的DOX诱导的表达.
- LOSM显示出抗炎作用,降低心脏IL-1α和IL-6以及全身IL-6和CXCL1水平. 它还增加了线粒素2的表达.
结论:
- 洛斯马皮莫德 (LOSM) 有效地改善了小鼠的多克索鲁比 (DOX) 诱导的心脏毒性,衰老和炎症.
- 用LOSM抑制p38 MAPK通路代表了减轻DOX相关心脏损伤的潜在治疗策略.
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