IFITM proteins assist cellular uptake of diverse linked chemotypes.

IFITM proteins assist cellular uptake of diverse linked chemotypes.
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IFITM蛋白有助于细胞摄取各种连接的化学型。

DOI:
10.1126/science.abl5829
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发表时间:
2022-12-09
期刊:
Science (New York, N.Y.)
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对细胞渗透性药物的研究通常集中在低分子量、非极性和刚性化学结构上。然而,新兴的治疗策略打破了传统的药物设计规则,采用灵活连接的化学实体组成的一个以上的配体。使用互补的基因组规模的化学遗传学方法,我们确定了一个内源性的化学吸收途径,涉及干扰素诱导的跨膜蛋白(IFITM),调节细胞的渗透性的原型biopic抑制剂MTOR(RapaLink-1,MW:1784 g/mol)。我们设计了靶向BCR-ABL1(DasatiLink-1,MW:1518 g/mol)和EIF4A1(BisRoc-1,MW:1466 g/mol)的其他连接抑制剂,其摄取由IFITM促进。我们还发现,IFITMs适度协助一些蛋白水解靶向嵌合体(PROTAC),并检查了参与这一摄取途径的理化要求。化学遗传学方法阐明了突破传统药物设计规则的分子的摄取途径。
The search for cell permeable drugs has conventionally focused on low molecular weight, non-polar, and rigid chemical structures. However, emerging therapeutic strategies break traditional drug design rules by employing flexibly linked chemical entities composed of more than one ligand. Using complementary genome-scale chemical-genetic approaches we identified an endogenous chemical uptake pathway involving interferon induced transmembrane proteins (IFITMs) that modulates the cell permeability of a prototypical biopic inhibitor of MTOR (RapaLink-1, MW: 1784 g/mol). We devised additional linked inhibitors targeting BCR-ABL1 (DasatiLink-1, MW: 1518 g/mol) and EIF4A1 (BisRoc-1, MW: 1466 g/mol) whose uptake was facilitated by IFITMs. We also found that IFITMs moderately assisted some proteolysis targeting chimeras (PROTACs) and examined the physicochemical requirements for involvement of this uptake pathway. Chemical-genetic approaches elucidate uptake pathway for molecules breaking traditional drug design rules.
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