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一种异环化合物通过诱导细胞表面BST2/Tetherin/CD317/HM1.24的作用来抑制病毒的释放

Perpetual Nyame¹, Akihiro Togami², Tomofumi Yoshida¹

¹Department of Microbiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.

The Journal of biological chemistry

|August 22, 2024

概括

一种新的化合物HT-7通过增加细胞表面BST2表达,有效地减少人体免疫缺陷病毒1型 (HIV-1) 释放. 这一发现为针对病毒释放机制的HIV-1治疗提供了一个有希望的新途径.

科学领域:

病毒学病毒学
药物发现药物发现药物发现
免疫学免疫学免疫学

背景情况:

联合抗逆转录病毒疗法 (cART) 改善了HIV-1患者的生活质量,但完全治愈仍然难以捉摸.
针对晚期HIV-1蛋白或宿主限制因子的新型抗病毒药物对于治愈性HIV-1疗法至关重要.
骨髓 stromal抗原2 (BST2),一个捕捉后代病毒的宿主限制因子,是HIV-1感染的有前途的治疗标.

研究的目的:

建立一种新的药物查系统,以识别抑制HIV-1释放的化合物.
合成和评估一种新型异环化合物HT-7,其在减少HIV-1释放和其细胞毒性的有效性.
阐明HT-7减少病毒释放的机制,特别是其对BST2表达的影响.

主要方法:

使用Jurkat/Vpr-HiBiT T细胞开发了一种药物查系统,以间接量化HIV-1释放.
从奥诺制药公司的化合物库中选了候选化合物,并使用抑制病毒释放的化合物合成HT-7.
评估了HT-7对HIV-1释放,BST2表达和细胞毒性的影响,在Jurkat和BST2淘汰的Jurkat细胞中进行了评估.

主要成果:

HT-7显著减少了HIV-1的释放,细胞毒性最小.
HT-7治疗增加了细胞表面的BST2表达,与Jurkat细胞中HIV-1释放的减少相关,但不是BST2-淘汰细胞.
此外,HT-7还对猿类免疫缺陷病毒 (SIV) 和SARS-CoV-2的释放产生抑制作用.

结论:

新型化合物HT-7通过调节细胞表面BST2表达,有效地减少HIV-1的释放.
通过向病毒释放,HT-7代表了HIV-1感染的有希望的治疗候选者.
这些发现表明HT-7对其他病毒,包括SIV和SARS-CoV-2的潜在适用性,需要进一步调查.

关键词:

在 BST2 中, BST2 是艾滋病病毒-1 艾滋病病毒-1 这就是SARS-CoV-2病毒.这是SIVmac2399.在 Vpu Vpu 里面,你会看到.药物查对药物进行查.在Tetherin中使用.

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