Hepatitis B virus X mediates podocyte pyroptosis by regulating the ROS/NLRP3 signaling pathway in hepatitis B virus-associated glomerulonephritis | ||
| Iranian Journal of Basic Medical Sciences | ||
| مقاله 14، دوره 25، شماره 1، فروردین 2022، صفحه 103-109 اصل مقاله (596.67 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22038/ijbms.2022.61105.13520 | ||
| نویسندگان | ||
| Yani Yu1؛ Hui Dong2؛ Jingyi Sun1؛ Baoshuang Li1؛ Yueqi Chen1؛ Moxuan Feng1؛ Xiaoqian Yang1؛ Wei Jiang* 1 | ||
| 1Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong, China | ||
| 2Health Management Center, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong, China | ||
| چکیده | ||
| Objective(s): This study was designed to investigate whether HBx-induced podocyte injury is related to the nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome and the specific mechanism of the oxidative stress pathway in hepatitis B virus-associated glomerulonephritis (HBV-GN). Materials and Methods: The HBx gene was overexpressed in renal podocytes to mimic HBV-GN. Podocyte morphology was observed under a scanning electron microscope. Reactive oxygen species (ROS) generation was detected by dichlorodihydrofluorescein diacetate (DCFH-DA) assay. The podocytes in each group were treated with Hoechst 33342 and subjected to immunofluorescence staining. Caspase-1 activity and LDH levels were assessed with a Caspase-1 Activity Assay Kit and an LDH ELISA Kit, respectively. The expression of all pyroptosis-related proteins was examined by Western blot analysis. Results: Pyroptosis-related proteins, including NLRP3, apoptosis-associated speck-like protein containing card (ASC), caspase-1, IL-1β, and IL-18 (P<0.05), were up-regulated upon HBx overexpression, and caspase-1 enzyme activity and LDH and Desmin expression were also enhanced (P<0.05). NLRP3 knockdown attenuated the increased expression of pyroptosis-related proteins upon HBx overexpression (P<0.05), which was also achieved by the addition of an ROS inhibitor (P<0.05). Conclusion: HBx regulates podocyte pyroptosis in HBV-GN by targeting the NLRP3 inflammasome, and mitochondrial oxidative stress plays an important role in this process. | ||
| کلیدواژهها | ||
| Glomerulonephritis؛ HBx؛ NLRP3؛ Pyroptosis؛ ROS | ||
| مراجع | ||
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