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JACC:一种可以治疗肺动脉高压的疫苗研发

2019-05-28 不详 MedSci原创

肺动脉高压(PAH)是一种致死性的慢性疾病,而其治疗方法尚不理想。疫苗的预防接种为PAH的治疗带来了新希望。本研究的目的旨在寻找一种可以抑制内皮素-1(ET-1)受体A型(ETAR)的疫苗以治疗PAH。本研究研发了一种特异性结合ETAR细胞外抗原表位ETR-002的抗体,并对该抗体对Ca2+信号通路的影响进行了检测。在体内,本研究将ETRQβ-002疫苗接种至野百合碱(MCT)和缺氧诱导的PAH动

肺动脉高压(PAH)是一种致死性的慢性疾病,而其治疗方法尚不理想。疫苗的预防接种为PAH的治疗带来了新希望。本研究的目的旨在寻找一种可以抑制内皮素-1(ET-1)受体A型(ETAR)的疫苗以治疗PAH。

本研究研发了一种特异性结合ETAR细胞外抗原表位ETR-002的抗体,并对该抗体对Ca2+信号通路的影响进行了检测。在体内,本研究将ETRQβ-002疫苗接种至野百合碱(MCT)和缺氧诱导的PAH动物模型,同时,结合ETR-002的单克隆抗体(mAb)也注射至PAH动物。分析结果显示,ETR-002有很好的免疫原性,ETRQβ-002疫苗可以使动物产生大量抗体。在体外实验中,ETR-002抗体可以结合ETAR,并抑制Ca2+信号转导通路。在体内动物模型中,ETRQβ-002疫苗和ETR-002抗体均可以减少PAH大鼠的右室压力,并且可以改善肺动脉的病理性重塑和右室肥厚程度。另外,疫苗没有引起明显的免疫损伤。

研究结果显示,ETRQβ-002疫苗和ETR-002抗体可以改善肺动脉高压大鼠的肺动脉的病理性重塑和右室肥厚程度,降低右室压力。

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    2020-02-29 hbwxf
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    2019-05-30 lqvr
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    2019-05-30 爆笑小医
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    2019-05-28 明天jing

    肺动脉高压表面是罕见病,事实上临床上并不少见,治疗药物虽然有一些,但是整体仍然不理解,可能未来需要采用综合治疗措施。

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