通过激活NF-κB信号通路,KAT7通过促进内皮衰老和炎症反应来促进波纳替尼诱导的高血压
Liang-Liang Tang1, Xin-Yu Xu1, Mei Zhang2,3
1Department of Pharmacy and Cardiology, Harbin Medical University (HMU) Cancer Hospital, Institute of Metabolic Disease, Heilongjiang Academy of Medical Science, Heilongjiang Key Laboratory for Metabolic Disorders and Cancer related Cardiovascular Diseases.
Journal of hypertension
|March 14, 2025
概括
波纳提尼布诱导的高血压与KAT7的增加有关,通过H3K14乙化和NF-κB信号传递引起内皮细胞衰老和炎症. 用WM-3835抑制KAT7改善了高血压和内皮功能障碍.
科学领域:
- 心血管生物学 心血管生物学
- 分子医学是分子医学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 已知Ponatinib是一种氨酸激酶抑制剂 (TKI),通过尚未完全理解的机制引起高血压.
- 氨酸乙基转移酶7 (KAT7) 是细胞衰老的调节剂,与心血管疾病有关.
研究的目的:
- 为了研究KAT7在波纳提尼布诱导的高血压中的作用.
- 阐明将波纳替尼治疗与高血压联系起来的分子机制.
主要方法:
- 对斯普拉格-道利大鼠给予波纳替尼和KAT7抑制剂 (WM-3835).
- 测量血压,血管扩张和内皮功能.
- 分析KAT7表达,H3K14乙化和NF-κB信号在内皮细胞和老鼠介质动脉中的分析.
主要成果:
- 在老鼠中,ponatinib治疗增加了血压,损害了内皮依赖放松,并诱导了内皮细胞损伤.
- 在接受波纳替尼治疗后,KAT7表达在老鼠中枢动脉内皮细胞 (MAEC) 中被上调.
- 用WM-3835抑制KAT7改善了波纳替尼诱导的高血压和内皮功能障碍.
- 在MAEC中过度表达KAT7诱导细胞衰老和炎症,模仿ponatinib的作用.
- 波纳替尼和KAT7过度表达促进了H3K14乙化和激活NF-κB信号,导致IL-6和IL-8的增加,这些IL-6和IL-8被WM-3835和BAY 11-7085缓解.
结论:
- 波纳提尼布诱导的高血压是由KAT7升高的介导,导致内皮细胞衰老和炎症.
- 该机制涉及H3K14的乙化和NF-κB信号通路的激活.
- 向KAT7可能为管理波纳替尼诱导的高血压提供治疗策略.
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