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CTS全国呼吸病学学术会议:应颂敏:哮喘靶向治疗研究进展

2017-09-25 罗嫚 呼吸界

在中华医学会呼吸病学年会-2017第十八次全国呼吸病学学术会议上,浙江大学呼吸疾病研究所/浙江大学医学院附属第二医院应颂敏教授总结了重度哮喘的靶向治疗方案,包括已经应用于临床的单克隆抗体及其团队近期发现的BCL2抑制剂ABT-737/199。

在中华医学会呼吸病学年会-2017第十八次全国呼吸病学学术会议上,浙江大学呼吸疾病研究所/浙江大学医学院附属第二医院应颂敏教授总结了重度哮喘的靶向治疗方案,包括已经应用于临床的单克隆抗体及其团队近期发现的BCL2抑制剂ABT-737/199。

应颂敏教授介绍,全世界大约有3亿哮喘患者,中国约有3千万哮喘患者,是全球哮喘病死率最高的国家之一。有规律的吸入低剂量激素治疗是目前控制哮喘最理想的一线治疗方法,重症哮喘患者虽然只占哮喘群体的5%-10%,但其所花费的医疗资源占50%左右,急诊就医率和住院率分别是轻中度哮喘患者的15倍和20倍;是导致哮喘治疗费用增加的主要原因之一。气道中以中性粒细胞募集为主的患者,往往存在激素治疗效果不佳的情况。目前针对重症哮喘的治疗除了常规的激素疗法,IgE单克隆抗体奥马珠单抗及IL5单克隆抗体美泊利单抗也可能成为患者的选择。

应颂敏教授所在研究团队发现,哮喘的持续状态与炎症细胞上处于高表达水平的凋亡抑制蛋白Bcl-2密切相关。因此,靶向诱导炎症细胞凋亡/死亡或是哮喘治疗的一个值得探索的策略。在哮喘动物模型中,以Bcl-2的抑制剂ABT-737或ABT-199气道局部给药能够靶向诱导炎症细胞凋亡,进而有效抑制气道炎症与气道高反应性,特别是对于激素治疗无效或抵抗的中性粒细胞型哮喘有着理想的治疗效果,而且并未引起药物相关的损害。而且将Bcl-2抑制剂制备成为纳米颗粒药物,达到了更为优化的治疗目的。这一研究为激素不敏感/抵抗哮喘的治疗探索出了新的方法与思路。

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    2017-09-27 docwu2019

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