自噬促进巨噬细胞对缓释纳米制剂抗逆转录病毒药物的储存。

Autophagy facilitates macrophage depots of sustained-release nanoformulated antiretroviral drugs.

作者信息

Gnanadhas Divya Prakash, Dash Prasanta K, Sillman Brady, Bade Aditya N, Lin Zhiyi, Palandri Diana L, Gautam Nagsen, Alnouti Yazen, Gelbard Harris A, McMillan JoEllyn, Mosley R Lee, Edagwa Benson, Gendelman Howard E, Gorantla Santhi

出版信息

J Clin Invest. 2017 Mar 1;127(3):857-873. doi: 10.1172/JCI90025. Epub 2017 Jan 30.

Abstract

Long-acting anti-HIV products can substantively change the standard of care for patients with HIV/AIDS. To this end, hydrophobic antiretroviral drugs (ARVs) were recently developed for parenteral administration at monthly or longer intervals. While shorter-acting hydrophilic drugs can be made into nanocarrier-encased prodrugs, the nanocarrier encasement must be boosted to establish long-acting ARV depots. The mixed-lineage kinase 3 (MLK-3) inhibitor URMC-099 provides this function by affecting autophagy. Here, we have shown that URMC-099 facilitates ARV sequestration and its antiretroviral responses by promoting the nuclear translocation of the transcription factor EB (TFEB). In monocyte-derived macrophages, URMC-099 induction of autophagy led to retention of nanoparticles containing the antiretroviral protease inhibitor atazanavir. These nanoparticles were localized within macrophage autophagosomes, leading to a 4-fold enhancement of mitochondrial and cell vitality. In rodents, URMC-099 activation of autophagy led to 50-fold increases in the plasma drug concentration of the viral integrase inhibitor dolutegravir. These data paralleled URMC-099-mediated induction of autophagy and the previously reported antiretroviral responses in HIV-1-infected humanized mice. We conclude that pharmacologic induction of autophagy provides a means to extend the action of a long-acting, slow, effective release of antiretroviral therapy.

摘要

长效抗HIV产品可实质性改变HIV/AIDS患者的护理标准。为此,近期研发了疏水性抗逆转录病毒药物(ARVs)用于每月或更长间隔的肠胃外给药。虽然短效亲水性药物可制成纳米载体包裹的前药,但必须增强纳米载体包裹以建立长效ARV储存库。混合谱系激酶3(MLK-3)抑制剂URMC-099通过影响自噬发挥这一功能。在此,我们表明URMC-099通过促进转录因子EB(TFEB)的核转位来促进ARV隔离及其抗逆转录病毒反应。在单核细胞衍生的巨噬细胞中,URMC-099诱导自噬导致含有抗逆转录病毒蛋白酶抑制剂阿扎那韦的纳米颗粒滞留。这些纳米颗粒定位于巨噬细胞自噬体内,导致线粒体和细胞活力增强4倍。在啮齿动物中,URMC-099激活自噬导致病毒整合酶抑制剂多替拉韦的血浆药物浓度增加50倍。这些数据与URMC-099介导的自噬诱导以及先前报道的在HIV-1感染的人源化小鼠中的抗逆转录病毒反应相符。我们得出结论,自噬的药理学诱导提供了一种延长长效、缓慢、有效释放抗逆转录病毒疗法作用的方法。

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