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Inhibition of cysteine-serine-rich nuclear protein 1 ameliorates ischemia-reperfusion injury during liver transplantation in an MAPK-dependent manner.
- Source :
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Molecular biomedicine [Mol Biomed] 2024 Jun 21; Vol. 5 (1), pp. 22. Date of Electronic Publication: 2024 Jun 21. - Publication Year :
- 2024
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Abstract
- Hepatic ischemia-reperfusion injury (HIRI) is a critical pathophysiological process during liver transplantation (LT). Multiple genes and signal pathways are dysregulated during HIRI. This study aims to identify genes as potential therapeutic targets for ameliorating HIRI. Datasets containing samples from the human donor liver (GSE151648) and mouse HIRI model (GSE117066) were analyzed to determine differentially expressed genes (DEGs). The selected DEGs were confirmed by real-time PCR and western blot in the hepatocyte hypoxia-reoxygenation (HR) model, mouse HIRI model, and human liver samples after transplantation. Genetic inhibition was used to further clarify the underlying mechanism of the gene in vitro and in vivo. Among the DEGs, CSRNP1 was significantly upregulated (|log FC|= 2.08, P < 0.001), and was positively correlated with the MAPK signal pathway (R = 0.67, P < 0.001). CSRNP1 inhibition by siRNA significantly suppressed apoptosis in the AML-12 cell line after HR (mean Annexin <superscript>+</superscript> ratio = 60.62% vs 42.47%, P = 0.0019), but the protective effect was eliminated with an additional MAPK activator. Knocking down CSRNP1 gene expression by intravenous injection of AAV-shRNA markedly reduced liver injury in mouse HIRI model (ALT: AAV-NC vs AAV-shCsrnp1 = 26,673.5 ± 2761.2 vs 3839.7 ± 1432.8, P < 0.001; AST: AAV-NC vs AAV-shCsrnp1 = 8640.5 ± 1450.3 vs 1786.8 ± 518.3, P < 0.001). Liver-targeted delivery of siRNA by nanoparticles effectively inhibited intra-hepatic genetic expression of Csrnp1 and alleviated IRI by reducing tissue inflammation and hepatocyte apoptosis. Furthermore, CSRNP1 inhibition was associated with reduced activation of the MAPK pathway both in vitro and in vivo. In conclusion, our results demonstrated that CSRNP1 could be a potential therapeutic target to ameliorate HIRI in an MAPK-dependent manner.<br /> (© 2024. The Author(s).)
- Subjects :
- Animals
Humans
Mice
MAP Kinase Signaling System drug effects
Male
Cell Line
Liver metabolism
Liver pathology
Hepatocytes metabolism
Hepatocytes drug effects
Disease Models, Animal
Mice, Inbred C57BL
Reperfusion Injury metabolism
Reperfusion Injury prevention & control
Reperfusion Injury genetics
Liver Transplantation adverse effects
Apoptosis drug effects
Subjects
Details
- Language :
- English
- ISSN :
- 2662-8651
- Volume :
- 5
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Molecular biomedicine
- Publication Type :
- Academic Journal
- Accession number :
- 38902590
- Full Text :
- https://doi.org/10.1186/s43556-024-00185-z