在治疗动脉静脉形形时,针对微环境
Caroline T Seebauer1, Benedikt Wiens2, Constantin A Hintschich2
1Department of Otorhinolaryngology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany. caroline.seebauer@ukr.de.
Angiogenesis
|September 21, 2023
概括
机械压力增加了动脉静脉形形 (AVMs) 中的VEGF. 作为VEGF抑制剂的贝瓦齐祖马布 (bevacizumab) 降低了AVM细胞生长和网络形成,显示为AVM治疗的前景.
科学领域:
- 血管生物学 血管生物学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 外动脉静脉形 (AVM) 是一种罕见的血管异常.
- 由于高血管压力和内皮细胞的机械压力,AVM会引起疼痛,出血和不受控制的生长.
- 除了手术和干预性放射学外,还需要新的药理疗法.
研究的目的:
- 研究机械应激对AVM内皮细胞的作用.
- 评估VEGF抑制剂的thalidomide和bevacizumab在控制AVM细胞增殖和网络形成方面的疗效.
- 评估贝瓦齐祖马布在无法切除的AVMs患者的临床有效性和安全性.
主要方法:
- 三名患者的AVM细胞经历了循环的机械拉伸.
- thalidomide和bevacizumab对它们对细胞增殖和循环网络形成的影响进行了测试.
- 测量了VEGF基因和蛋白质的表达.
- 贝瓦西祖马布被给予了三名无法切除的AVM患者.
主要成果:
- 机械应激增加了AVM内皮细胞中的VEGF基因和蛋白质表达.
- thalidomide和bevacizumab都降低了内皮AVM细胞的增殖.
- 贝瓦齐祖马布在机械应力下抑制了循环网络的形成,并降低了VEGF的表达.
- 在八个月以上的患者中,使用贝瓦齐祖马布的临床治疗控制了出血,脉动和疼痛,没有报告的副作用.
结论:
- 机械应力加剧了AVM中的VEGF表达.
- 贝瓦西祖马布在体外有效地抑制AVM内皮细胞的增殖和网络形成.
- 贝瓦西祖马布在治疗无法切除的AVM症状方面表现出临床疗效,具有良好的安全性.
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