Tran Thu T, Eltzschig Holger K, Yuan Xiaoyi
Department of Pediatrics, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA.
Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA.
J Physiol. 2024 Nov;602(21):5745-5756. doi: 10.1113/JP284599. Epub 2023 Nov 30.
Acute respiratory distress syndrome (ARDS) is characterized by bilateral chest infiltration and acute hypoxic respiratory failure. ARDS carries significant morbidity and mortality despite advancements in medical management, calling for the development of novel therapeutic targets. Hypoxia-inducible factor (HIF) is a heterodimeric protein involved in various essential pathways, including metabolic reprogramming, immune modulation, angiogenesis and cell cycle regulation. HIF is routinely degraded in homeostasis conditions via the prolyl hydroxylase domain/von Hippel-Lindau protein pathway. However, HIF is stabilized in ARDS via various mechanisms (oxygen-dependent and independent) as an endogenous protective pathway and plays multifaceted roles in different cell populations. This review focuses on the functional role of HIF and its target genes during ARDS, as well as how HIF has evolved as a therapeutic target in current medical management.
急性呼吸窘迫综合征(ARDS)的特征是双侧肺部浸润和急性低氧性呼吸衰竭。尽管在医疗管理方面取得了进展,但ARDS仍具有显著的发病率和死亡率,这就需要开发新的治疗靶点。缺氧诱导因子(HIF)是一种异二聚体蛋白,参与多种重要途径,包括代谢重编程、免疫调节、血管生成和细胞周期调控。在稳态条件下,HIF通常通过脯氨酰羟化酶结构域/冯·希佩尔-林道蛋白途径被降解。然而,在ARDS中,HIF通过多种机制(氧依赖性和非依赖性)作为一种内源性保护途径而被稳定,并在不同细胞群体中发挥多方面作用。本综述重点关注HIF及其靶基因在ARDS期间的功能作用,以及HIF如何在当前医疗管理中发展成为一个治疗靶点。