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一种新的抗病毒策略,通过对人类呼吸道上皮细胞的pH值调节来向人类甲肺病毒

Ivana A Daniels, Benjamin Gaston, Jessica Saunders

bioRxiv : the preprint server for biology

|February 23, 2026

概括

一种吸入的性缓冲剂,PHOH-001通过改变pH依赖的病毒过程,有效地抑制人类甲肺病毒 (hMPV). 这种新的策略显示出治疗hMPV呼吸道感染的前景.

科学领域:

病毒学病毒学
呼吸系统医学呼吸系统医学
药理学药理学是指药理学的学科.

背景情况:

人类甲肺病毒 (hMPV) 导致严重的呼吸系统疾病,目前没有疫苗或抗病毒治疗.
对于hMPV感染至关重要的是pH调节的机制,包括病毒的进入和传播.

研究的目的:

调查PHOH-001,一个吸入的性缓冲剂,作为对hMPV的治疗剂.
评估pH调节对呼吸道上皮细胞hMPV感染的影响.

主要方法:

重组hMPV表达GFP (rhMPV-GFP) 用于人类呼吸道原发性上皮细胞 (HAECs).
用GFP表达和TCID50测定来测量病毒复制.
在Vero E6细胞中进行了机制研究,以评估pH值变化和病毒蛋白位址.

主要成果:

在HAEC中,PHOH-001显著降低了hMPV复制和GFP表达.
该化合物增加了Vero E6细胞中的细胞外和细胞内pH值,抑制了感染.
PHOH-001 抑制了 syncytium 形成和改变了融合 (F) 蛋白的局部化,损害了病毒的传播.

结论:

使用PHOH-001调节气道pH值是对抗hMPV的可行策略.
PHOH-001针对hMPV生命周期中的多个pH依赖的步骤.
对吸入性缓冲剂的进一步研究对于hMPV治疗是有必要的.

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