Zrufkó Réka, Pajtók Csenge, Szebeni Beáta, Veres-Székely Apor, Bernáth Mária, Szász Csenge, Bokrossy Péter, Szabó Attila J, Vannay Ádám, Pap Domonkos
Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary.
HUN-REN-SU Pediatrics and Nephrology Research Group, 1052 Budapest, Hungary.
Antioxidants (Basel). 2025 Jun 12;14(6):719. doi: 10.3390/antiox14060719.
Although sepsis-induced acute kidney injury (AKI) is associated with significant morbidity and mortality, its treatment remains unresolved. Oxidative stress and inflammation are key elements in the pathomechanism of AKI. Therefore, in the present study, we investigated the role of DJ-1 protein, known for its antioxidant and anti-inflammatory properties in an animal model of lipopolysaccharide (LPS)-induced AKI. The presence of DJ-1 was detected by immunofluorescence staining in mice kidney samples, human embryonic kidney cells (HEK-293), and peripheral blood mononuclear cells (PBMCs). To investigate DJ-1 functions, Compound-23, a specific DJ-1-binding and preserving compound (CAS: 724737-74-0), was used in vitro and in vivo. Compound-23 reduced the HO-induced reactive oxygen species (ROS) production of the HEK-293 cells, and their LPS- or HO-induced death, as well. In accordance, Compound-23 decreased the mRNA expression of the oxidative stress markers NAD(P)H quinone dehydrogenase 1 () and glutamate-cysteine ligase () in the LPS-treated, and in the HO-treated cells. Moreover, Compound-23 reduced the HO- and LPS-induced mRNA expression of inflammatory cytokine interleukin 6 () in both HEK-293 and PBMCs. Using the mice model of LPS-induced AKI, we demonstrated that Compound-23 treatment improved the renal functions of the mice. In addition, Compound-23 decreased the renal mRNA expression of kidney injury molecule 1 (), neutrophil gelatinase-associated lipocalin (), , , and in the LPS-treated mice. Our study revealed that compounds protecting DJ-1 functions may protect the kidney from LPS-induced damage, suggesting that DJ-1 could be a potential drug target for sepsis-induced AKI therapy.
尽管脓毒症诱导的急性肾损伤(AKI)与显著的发病率和死亡率相关,但其治疗方法仍未得到解决。氧化应激和炎症是AKI发病机制中的关键因素。因此,在本研究中,我们在脂多糖(LPS)诱导的AKI动物模型中研究了以其抗氧化和抗炎特性而闻名的DJ-1蛋白的作用。通过免疫荧光染色在小鼠肾脏样本、人胚肾细胞(HEK-293)和外周血单核细胞(PBMC)中检测到DJ-1的存在。为了研究DJ-1的功能,在体外和体内使用了化合物23,一种特异性结合并保留DJ-1的化合物(CAS:724737-74-0)。化合物23降低了HO诱导的HEK-293细胞活性氧(ROS)的产生,以及它们由LPS或HO诱导的死亡。相应地,化合物23降低了LPS处理细胞中氧化应激标志物NAD(P)H醌脱氢酶1()和谷氨酸-半胱氨酸连接酶()的mRNA表达,以及HO处理细胞中的上述表达。此外,化合物23降低了HEK-293和PBMC中HO和LPS诱导的炎性细胞因子白细胞介素6()的mRNA表达。利用LPS诱导的AKI小鼠模型,我们证明化合物23治疗改善了小鼠的肾功能。此外,化合物23降低了LPS处理小鼠中肾损伤分子1()、中性粒细胞明胶酶相关脂质运载蛋白()、、和的肾mRNA表达。我们的研究表明,保护DJ-1功能的化合物可能保护肾脏免受LPS诱导的损伤,这表明DJ-1可能是脓毒症诱导的AKI治疗的潜在药物靶点。
J Trauma Acute Care Surg. 2025-7-1
Front Pharmacol. 2022-9-15
Int J Mol Sci. 2022-6-14
Nat Rev Dis Primers. 2021-7-15
Redox Biol. 2021-5
Oxid Med Cell Longev. 2020-9-5