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Eldafashi N, Waaz S, Ali TFS, Zaki MYW, Nazmy MH, Fathy M. The protective role of two oxindole derivatives is mediated by modulating NLRP3/caspase-1 and PI3K/AKT pathways in a preclinical animal model of hepatic ischemia reperfusion injury. Life Sci 2024; 352:122872. [PMID: 38942361 DOI: 10.1016/j.lfs.2024.122872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/05/2024] [Accepted: 06/23/2024] [Indexed: 06/30/2024]
Abstract
Aim Hepatic ischemia reperfusion injury (HIRI) is a leading cause of mortality post liver transplantation, hypovolemic shock and trauma. In this study, we tested, on molecular bases, the possible protective role of two different derivatives of 2-oxindole in a preclinical model of HIRI in rats. MAIN METHODS HIRI was operated in male Wistar albino rats and prophylactic treatment with oxindole-curcumin (Coxi) or oxindole-vanillin (Voxi) was carried out before the operation. The biochemical and histopathological investigations, in addition to the mechanistic characterizations of the effect of the tested drugs were performed. KEY FINDINGS HIRI was assured with elevated liver enzymes and marked changes in histopathological features, inflammatory response and oxidative stress. Pretreatment with Coxi and Voxi improved the hepatic histopathological alterations, reduced the elevated serum liver enzymes level and hepatic Malondialdehyde (MDA) content, increased the hepatic Superoxide Dismutase (SOD) activity and reduced Glutathione (GSH) content, downregulated the expression of TNF-α, IL-6, Nod-Like Receptor p3 (NLRP3), Cleaved caspase1, Cleaved caspase 3 proteins, alongside the expression level of IL-1β, ICAM-1, VCAM-1 and BAX genes, attenuated NF-кB p-P65 Ser536 and Myeloperoxidase (MPO)-positive neutrophils, and activated the PI3K/AKT pathway. SIGNIFICANCE Coxi and Voxi have promising hepatoprotective activity against HIRI in rats through ameliorating the biochemical and histopathological alterations, attenuating inflammatory and oxidative stress status by modulating the inflammatory TNF-α/ICAM-1, the pyroptosis NLRP3/Caspase-1, and the antioxidant PI3K/AKT pathways.
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Affiliation(s)
- Nardeen Eldafashi
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
| | - Shaimaa Waaz
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
| | - Taha F S Ali
- Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
| | - Marco Y W Zaki
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
| | - Maiiada Hassan Nazmy
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
| | - Moustafa Fathy
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia 61519, Egypt.
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Li Y, Liu T, Zheng R, Lai J, Su J, Li J, Zhu B, Chen T. Translational selenium nanoparticles boost GPx1 activation to reverse HAdV-14 virus-induced oxidative damage. Bioact Mater 2024; 38:276-291. [PMID: 38745588 PMCID: PMC11091461 DOI: 10.1016/j.bioactmat.2024.04.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/18/2024] [Accepted: 04/29/2024] [Indexed: 05/16/2024] Open
Abstract
Human adenovirus (HAdV) can cause severe respiratory infections in immunocompromised patients, but its clinical treatment is seriously limited by side effects of drugs such as poor efficacy, low bioavailability and severe nephrotoxicity. Trace element selenium (Se) has been found will affect the disease progression of pneumonia, but its antivirus efficacy could be improved by speciation optimization. Therefore, herein we performed anti-HAdV effects of different Se speciation and found that lentinan (LNT)-decorated selenium nanoparticles (SeNPs) exhibited low cytotoxicity and excellent anti-HAdV antiviral activity. Furthermore, SeNPs@LNT reduced the HAdV infection-induced mitochondrial damage and excessive production of reactive oxygen species (ROS). It was also involved in the repair of host cell DNA damage and inhibition of viral DNA replication. SeNPs@LNT inhibited HAdV-induced apoptosis mainly by modulating the p53/Bcl-2 apoptosis signaling pathway. In vivo, SeNPs@LNT replenished Se by targeting the infected site through the circulatory system and was involved in the synthesis of Glutathione peroxidase 1 (GPx1). More importantly, GPx1 played an antioxidant and immunomodulatory role in alleviating HAdV-induced inflammatory cytokine storm and alleviating adenovirus pneumonia in Se-deficient mice. Collectively, this study provides a Se speciation of SeNPs@LNT with anti-HAdV activity, and demonstrate that SeNPs@LNT is a promising pharmaceutical candidate for the treatment of HAdV.
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Affiliation(s)
- Yinghua Li
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ting Liu
- Department of Chemistry, Jinan University, China
| | - Ruilin Zheng
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jia Lai
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jingyao Su
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jiali Li
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Bing Zhu
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Tianfeng Chen
- Department of Chemistry, Jinan University, China
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control (Jinan University), Ministry of Education, China
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Chen M, Ji T, Liu YY, Liu WL, Yan XT, Jiang HX, Zhang ZZ, He XH. Emodin alleviates intestinal ischemia/reperfusion-induced lung injury by upregulating HO-1 expression via PI3K/AkT pathway. Surgery 2024; 176:499-510. [PMID: 38811326 DOI: 10.1016/j.surg.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/16/2024] [Accepted: 04/06/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND Emodin, a natural anthraquinone derivative found in various Chinese medicinal herbs, has been proved to be an effective therapeutic agent in the treatment of many diseases. However, its effect on lung injury after intestinal ischemia/reperfusion injury remains unknown. This research was designed to investigate whether emodin protects against intestinal ischemia/reperfusion-induced lung injury and to elucidate the underlying molecular mechanisms in vivo and in vitro. METHODS Intestinal ischemia/reperfusion injury was induced by occluding the superior mesenteric artery in mice, and mouse lung epithelial-12 cells were subjected to oxygen-glucose deprivation and reoxygenation to establish an in vitro model. RESULTS Our data indicated that emodin treatment reduced intestinal ischemia/reperfusion-induced oxidative stress, inflammation and apoptosis in lung tissues and alleviated lung injury. However, the protective effects of emodin on intestinal ischemia/reperfusion-induced lung injury were reversed by the protein kinase B inhibitor triciribine or the heme oxygenase-1 inhibitor tin protoporphyrin IX. The protein kinase inhibitor triciribine also downregulated the expression of heme oxygenase-1. CONCLUSION In conclusion, our data suggest that emodin treatment protects against intestinal ischemia/reperfusion-induced lung injury by enhancing heme oxygenase-1 expression via activation of the PI3K/protein kinase pathway. Emodin may act as a potential therapeutic agent for the prevention and treatment of lung injury induced by intestinal ischemia/reperfusion.
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Affiliation(s)
- Meng Chen
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei, China; Department of Anesthesiology, Maternal and Child Health Hospital of Hubei Province, Wuhan, Hubei, China
| | - Tuo Ji
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei, China; Department of Anesthesiology, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Yin-Yin Liu
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei, China
| | - Wan-Li Liu
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei, China
| | - Xue-Tao Yan
- Department of Anesthesiology, Shenzhen Bao'an Maternity and Child Health Hospital, China
| | - Hai-Xing Jiang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei, China
| | - Zong-Ze Zhang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei, China
| | - Xiang-Hu He
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei, China.
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Zhang F, Ma G, Chaung W, Jacob A, Brenner M, Wang P. TAG-FREE GLYCOSYLATED RHMFG-E8 AS A THERAPY FOR ACUTE KIDNEY INJURY. Shock 2024; 62:286-293. [PMID: 38691106 DOI: 10.1097/shk.0000000000002382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
ABSTRACT Background: Acute kidney injury (AKI) can result from renal ischemia and reperfusion (I/R) and often occurs during surgical procedures in cardiac, liver, kidney transplantation, and trauma-hemorrhage. Milk fat globule epidermal growth factor-factor VIII (MFG-E8) functions as a bridging molecule to promote the removal of dying cells by professional phagocytes. Because MFG-E8 promotes clearance of apoptotic cells, we have explored its therapeutic potential in various organ injury conditions. To develop human MFG-E8 as a potential therapy, we have generated a human cell-expressed, and thus glycosylated, tag-free recombinant human (rh) MFG-E8 and tested its safety and biological activity in vitro . We hypothesize that the tag-free glycosylated rhMFG-E8 is protective in I/R-induced AKI and it can be developed as an effective therapy for AKI. Methods: To assess the pharmacokinetic properties of the tag-free rhMFG-E8, Sprague-Dawley rats were either untreated or treated with a bolus dose of the tag-free rhMFG-E8, blood collected at various time points and the recovery of human MFG-E8 in the blood were measured by ELISA. Adult male C57BL6 mice underwent bilateral renal ischemia for 30 min, and immediately upon reperfusion, mice were treated intraperitoneally with either normal saline (vehicle) or 20 μg/kg human cell expressed, glycosylated tag-free rhMFG-E8. At either 24 h or 48 h after I/R, blood and kidneys were harvested for further analysis. In separate cohorts of mice after I/R and treatment, mice were observed for 10 days, and survival recorded. Results: AKI rats treated with the tag-free rhMFG-E8 had similar half-life as those in the treated control rats. At 48 h after I/R-induced AKI, renal function markers, blood urea nitrogen, and creatinine were increased and treatment with the tag-free rhMFG-E8 significantly decreased these markers. At both 24 h and 48 h after AKI, inflammatory cytokines, TNF-α, IL-6, and IL-1β were increased and treatment decreased these levels. The kidney mRNA expressions of these cytokines were also increased at 24 h after AKI and treatment significantly decreased those mRNA expressions. Histologically, at 48 h after AKI, tubular damage, and the number of TUNEL staining cells were increased and treatment markedly decreased these measurements. Administration of tag-free rhMFG-E8 at the time of reperfusion improved survival in a 10-day survival study. Conclusion: Our new human cell-expressed tag-free rhMFG-E8 is protective in I/R-induced AKI and it may have the potential to be further developed as a safe and effective therapy for AKI.
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Qin XJ, Hu WJ, Xu XJ. Exploring the mechanism of Corbrin capsules in the intervention of AKI-COVID-19 based on network pharmacology combined with GEO dataset. Gene 2024; 916:148438. [PMID: 38579905 DOI: 10.1016/j.gene.2024.148438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
AIM of the study: This study used network pharmacology and the Gene Expression Omnibus (GEO) database to investigate the therapeutic effects of Corbrin capsules on acute kidney injury (AKI)-COVID-19 (coronavirus disease 2019). MATERIALS AND METHODS The active constituents and specific molecular targets of Corbrin capsules were obtained from the Traditional Chinese Medicine Systems Pharmacology (TCMSP) and Swiss Target Prediction databases. The targets related to AKI and COVID-19 disease were obtained from the Online Mendelian Inheritance in Man (OMIM), GeneCards, and GEO databases. A protein-protein interaction (PPI) network was constructed by utilizing Cytoscape. To enhance the analysis of pathways associated with the pathogenesis of AKI-COVID-19, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed. Furthermore, immune infiltration analysis was performed by using single-sample gene set enrichment analysis (ssGSEA) and CIBERSORT. Molecular docking was used to assess interactions between differentially expressed genes and active ingredients. Verification was performed by utilizing GEO databases and in vivo assays. RESULTS This study revealed an overlap of 18 significantly differentially expressed genes between the Corbrin capsules group and the AKI-COVID-19 target group. Analysis of the PPI network identified TP53, JAK2, PIK3CA, PTGS2, KEAP1, and MCL1 as the top six core protein targets with the highest degrees. The results obtained from GO and KEGG analyses demonstrated that the target genes were primarily enriched in the apoptosis and JAK-STAT signaling pathways. Moreover, the analysis of immune infiltration revealed a notable disparity in the percentage of quiescent memory CD4 + T cells. Western blot analyses provided compelling evidence suggesting that the dysregulation of 6 core protein targets could be effectively reversed by Corbrin capsules. CONCLUSION This study revealed the key components, targets, and pathways involved in treating AKI-related COVID-19 using Corbrin capsules. This study also provided a new understanding of the molecular mechanisms underlying this treatment.
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Affiliation(s)
- Xiu-Juan Qin
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China, 230031; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui, China, 230012
| | - Wen-Jie Hu
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China, 230031
| | - Xian-Jin Xu
- Hefei Ion Medical Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China, 230088.
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Oliveira FRMB, Sousa Soares E, Pillmann Ramos H, Lättig-Tünnemann G, Harms C, Cimarosti H, Sordi R. Renal protection after hemorrhagic shock in rats: Possible involvement of SUMOylation. Biochem Pharmacol 2024; 227:116425. [PMID: 39004233 DOI: 10.1016/j.bcp.2024.116425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 07/08/2024] [Accepted: 07/11/2024] [Indexed: 07/16/2024]
Abstract
Hemorrhagic shock (HS), a leading cause of preventable death, is characterized by severe blood loss and inadequate tissue perfusion. Reoxygenation of ischemic tissues exacerbates organ damage through ischemia-reperfusion injury. SUMOylation has been shown to protect neurons after stroke and is upregulated in response to cellular stress. However, the role of SUMOylation in organ protection after HS is unknown. This study aimed to investigate SUMOylation-mediated organ protection following HS. Male Wistar rats were subjected to HS (blood pressure of 40 ± 2 mmHg, for 90 min) followed by reperfusion. Blood, kidney, and liver samples were collected at various time points after reperfusion to assess organ damage and investigate the profile of SUMO1 and SUMO2/3 conjugation. In addition, human kidney cells (HK-2), treated with the SUMOylation inhibitor TAK-981 or overexpressing SUMO proteins, were subjected to oxygen and glucose deprivation to investigate the role of SUMOylation in hypoxia/reoxygenation injury. The animals presented progressive multiorgan dysfunction, except for the renal system, which showed improvement over time. Compared to the liver, the kidneys displayed distinct patterns in terms of oxidative stress, apoptosis activation, and tissue damage. The global level of SUMO2/3 in renal tissue was also distinct, suggesting a differential role. Pharmacological inhibition of SUMOylation reduced cell viability after hypoxia-reoxygenation damage, while overexpression of SUMO1 or SUMO2 protected the cells. These findings suggest that SUMOylation might play a critical role in cellular protection during ischemia-reperfusion injury in the kidneys, a role not observed in the liver. This difference potentially explains the renal resilience observed in HS animals when compared to other systems.
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Affiliation(s)
- Filipe Rodolfo Moreira Borges Oliveira
- Department of Pharmacology, Biological Sciences Center, Universidade Federal de Santa Catarina (UFSC), SC, Brazil; Graduate Program in Pharmacology, UFSC, SC, Brazil
| | - Ericks Sousa Soares
- Department of Pharmacology, Biological Sciences Center, Universidade Federal de Santa Catarina (UFSC), SC, Brazil; Graduate Program in Pharmacology, UFSC, SC, Brazil
| | - Hanna Pillmann Ramos
- Department of Pharmacology, Biological Sciences Center, Universidade Federal de Santa Catarina (UFSC), SC, Brazil
| | - Gisela Lättig-Tünnemann
- Klinik und Hochschulambulanz für Neurologie mit Experimenteller Neurologie, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
| | - Christoph Harms
- Klinik und Hochschulambulanz für Neurologie mit Experimenteller Neurologie, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Centre for Stroke Research, Berlin, Germany; Charité-Universitätsmedizin Berlin, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), partner site Berlin, Germany; Einstein Centre for Neuroscience, Berlin, Germany
| | - Helena Cimarosti
- Department of Pharmacology, Biological Sciences Center, Universidade Federal de Santa Catarina (UFSC), SC, Brazil; Graduate Program in Pharmacology, UFSC, SC, Brazil; Graduate Program in Neuroscience, UFSC, SC, Brazil
| | - Regina Sordi
- Department of Pharmacology, Biological Sciences Center, Universidade Federal de Santa Catarina (UFSC), SC, Brazil; Graduate Program in Pharmacology, UFSC, SC, Brazil.
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Liu Y, Ji T, Jiang H, Chen M, Liu W, Zhang Z, He X. Emodin alleviates intestinal ischemia-reperfusion injury through antioxidant stress, anti-inflammatory responses and anti-apoptosis effects via Akt-mediated HO-1 upregulation. J Inflamm (Lond) 2024; 21:25. [PMID: 38982499 PMCID: PMC11232135 DOI: 10.1186/s12950-024-00392-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 05/08/2024] [Indexed: 07/11/2024] Open
Abstract
BACKGROUND Intestinal ischemia-reperfusion (I/R) injury is a severe vascular emergency. Previous research indicated the protective effects of Emodin on I/R injury. Our study aims to explore the effect of Emodin on intestinal I/R (II/R) injury and elucidate the underlying mechanisms. METHODS C57BL/6 mice and Caco-2 cells were used for in vivo and in vitro studies. We established an animal model of II/R injury by temporarily occluding superior mesenteric artery. We constructed an oxygen-glucose deprivation/reoxygenation (OGD/R) cell model using a hypoxia-reoxygenation incubator. Different doses of Emodin were explored to determine the optimal therapeutic dose. Additionally, inhibitors targeting the protein kinase B (Akt) or Heme oxygenase-1 (HO-1) were administered to investigate their potential protective mechanisms. RESULTS Our results demonstrated that in animal experiments, Emodin mitigated barrier disruption, minimized inflammation, reduced oxidative stress, and inhibited apoptosis. When Akt or HO-1 was inhibited, the protective effect of Emodin was eliminated. Inhibiting Akt also reduced the level of HO-1. In cell experiments, Emodin reduced inflammation and apoptosis in the OGD/R cell model. Additionally, when Akt or HO-1 was inhibited, the protective effect of Emodin was weakened. CONCLUSIONS Our findings suggest that Emodin may protect the intestine against II/R injury through the Akt/HO-1 signaling pathway.
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Affiliation(s)
- Yinyin Liu
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, East Lake Road, Wuhan, Hubei, 430071, China
| | - Tuo Ji
- Department of Anesthesiology, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, 430079, China
| | - Haixing Jiang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, East Lake Road, Wuhan, Hubei, 430071, China
| | - Meng Chen
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, East Lake Road, Wuhan, Hubei, 430071, China
- Department of Anesthesiology, Hubei Maternal and Child Health Hospital, Wuhan, Hubei, 430070, China
| | - Wanli Liu
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, East Lake Road, Wuhan, Hubei, 430071, China
| | - Zongze Zhang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, East Lake Road, Wuhan, Hubei, 430071, China.
| | - Xianghu He
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, East Lake Road, Wuhan, Hubei, 430071, China.
- Department of Anesthesiology, Jiayu Hospital, Zhongnan Hospital of Wuhan University, Xianning, Hubei, 437200, China.
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Ding X, Gao X, Ren A, Xu J, Jiang X, Liang X, Xie K, Zhou Y, Hu C, Huang D. Sevoflurane enhances autophagy via Rac1 to attenuate lung ischaemia‒reperfusion injury. Chem Biol Interact 2024; 397:111078. [PMID: 38815668 DOI: 10.1016/j.cbi.2024.111078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
Sevoflurane can attenuate lung ischaemia‒reperfusion injury (LIRI). However, the protective mechanism is unclear. In this study, we developed a LIRI model in vivo that animals (SD, n = 15) were subjected to the administration of 2.2 % sevoflurane 30 min before the onset of left pulmonary artery clamping for 45 min, which was then followed by 60 min of reperfusion treatment. Then, transcriptome sequencing was used to analyse lung tissues. Autophagy inhibition (3-MA) and Rac1-overexpression transfection plasmids were used in BEAS-2B cells, and BEAS-2B cells were subjected to hypoxia reoxygenation (H/R) and sevoflurane treatment. In both animal tissue and cells, inflammatory cytokines and apoptotic and autophagy molecules were measured by quantitative real-time PCR, western blotting and immunostaining. As a result, decreased arterial partial oxygen and damage to the histological structure of lung tissues were observed in LIRI model rats, and these effects were reversed by sevoflurane treatment. Activation of inflammation (elevated IL-1β, IL-6, and TNF-α) and apoptosis (elevated cleaved caspase3/caspase3 and Bax, degraded expression of Bcl2) and inhibition of autophagy (elevated P62, degraded expression of Beclin1 and LC3-II/LC3I) in the model group were ameliorated by sevoflurane. Transcriptome sequencing indicated that the PI3K/Akt pathway regulated by Rac1 plays an important role in LIRI. Furthermore, overexpression of Rac1 in a cell line inhibited the protective effect of sevoflurane in LIRI. Autophagy inhibition (3-MA) also prevented the protective effect of sevoflurane on inflammation and apoptosis. As shown in the present study, sevoflurane enhances autophagy via Rac1/PI3K/AKT signalling to attenuate lung ischaemia‒reperfusion injury.
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Affiliation(s)
- Xian Ding
- Department of Anesthesiology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214000, China
| | - Xiang Gao
- Department of Anesthesiology, The Affiliated Fujian Maternity and Child Health Hospital of Fujian Medical University, 350001, China
| | - Aolin Ren
- Department of Anesthesiology and Pain Medicine, Jiangnan University Medical Center, Wuxi No.2 People's Hospital, 214002, China
| | - Jingjing Xu
- Department of Anesthesiology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, 214023, China
| | - Xuliang Jiang
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, 200030, China
| | - Xiao Liang
- Department of Anesthesiology and Pain Medicine, Jiangnan University Medical Center, Wuxi No.2 People's Hospital, 214002, China
| | - Kangjie Xie
- Department of Anesthesiology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Research Center for Neuro-Oncology Interaction, Institute of Basic Medicine and Cancer, Chinese Academy of Sciences, China
| | - Yan Zhou
- Department of Anesthesiology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, 214023, China
| | - Chunxiao Hu
- Department of Anesthesiology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, 214023, China
| | - Dongxiao Huang
- Department of Anesthesiology and Pain Medicine, Jiangnan University Medical Center, Wuxi No.2 People's Hospital, 214002, China.
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Liu J, Fu J, Fu P, Liu M, Liu Z, Song B. Pitavastatin sensitizes the EGFR-TKI associated resistance in lung cancer by inhibiting YAP/AKT/BAD-BCL-2 pathway. Cancer Cell Int 2024; 24:224. [PMID: 38943199 PMCID: PMC11214206 DOI: 10.1186/s12935-024-03416-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 06/22/2024] [Indexed: 07/01/2024] Open
Abstract
BACKGROUND Despite effective strategies, resistance in EGFR mutated lung cancer remains a challenge. Metabolic reprogramming is one of the main mechanisms of tumor drug resistance. A class of drugs known as "statins" inhibit lipid cholesterol metabolism and are widely used in patients with cardiovascular diseases. Previous studies have also documented its ability to improve the therapeutic impact in lung cancer patients who receive EGFR-TKI therapy. Therefore, the effect of statins on targeted drug resistance to lung cancer remains to be investigated. METHODS Prolonged exposure to gefitinib resulted in the emergence of a resistant lung cancer cell line (PC9GR) from the parental sensitive cell line (PC9), which exhibited a traditional EGFR mutation. The CCK-8 assay was employed to assess the impact of various concentrations of pitavastatin on cellular proliferation. RNA sequencing was conducted to detect differentially expressed genes and their correlated pathways. For the detection of protein expression, Western blot was performed. The antitumor activity of pitavastatin was evaluated in vivo via a xenograft mouse model. RESULTS PC9 gefitinib resistant strains were induced by low-dose maintenance. Cell culture and animal-related studies validated that the application of pitavastatin inhibited the proliferation of lung cancer cells, promoted cell apoptosis, and restrained the acquired resistance to EGFR-TKIs. KEGG pathway analysis showed that the hippo/YAP signaling pathway was activated in PC9GR cells relative to PC9 cells, and the YAP expression was inhibited by pitavastatin administration. With YAP RNA interference, pAKT, pBAD and BCL-2 expression was decreased, while BAX expression as increased. Accordingly, YAP down-regulated significantly increased apoptosis and decreased the survival rate of gefitinib-resistant lung cancer cells. After pAKT was increased by SC79, apoptosis of YAP down-regulated cells induced by gefitinib was decreased, and the cell survival rate was increased. Mechanistically, these effects of pitavastatin are associated with the YAP pathway, thereby inhibiting the downstream AKT/BAD-BCL-2 signaling pathway. CONCLUSION Our study provides a molecular basis for the clinical application of the lipid-lowering drug pitavastatin enhances the susceptibility of lung cancer to EGFR-TKI drugs and alleviates drug resistance.
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Affiliation(s)
- Jie Liu
- Cancer Center, Shandong Public Health Clinical Center, Shandong University, Jinan, China
| | - Jialei Fu
- Shandong Academy of Chinese Medicine, Jinan, China
| | - Ping Fu
- Department of Chemotherapy, Jinan Zhangqiu District People's Hospital, Jinan, China
| | - Menghan Liu
- Clinical Medical College, Shandong First Medical University, Jinan, China
| | - Zining Liu
- Department of Nuclear Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, The Third Affiliated Hospital of Shandong First Medical University, Jinan, China.
| | - Bao Song
- Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China.
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Deng RM, Zhou J. Targeting NF-κB in Hepatic Ischemia-Reperfusion Alleviation: from Signaling Networks to Therapeutic Targeting. Mol Neurobiol 2024; 61:3409-3426. [PMID: 37991700 DOI: 10.1007/s12035-023-03787-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023]
Abstract
Hepatic ischemia-reperfusion injury (HIRI) is a major complication of liver trauma, resection, and transplantation that can lead to liver dysfunction and failure. Scholars have proposed a variety of liver protection methods aimed at reducing ischemia-reperfusion damage, but there is still a lack of effective treatment methods, which urgently needs to find new effective treatment methods for patients. Many studies have reported that signaling pathway plays a key role in HIRI pathological process and liver function recovery mechanism, among which nuclear transfer factor-κB (NF-κB) signaling pathway is one of the signal transduction closely related to disease. NF-κB pathway is closely related to HIRI pathologic process, and inhibition of this pathway can delay oxidative stress, inflammatory response, cell death, and mitochondrial dysfunction. In addition, NF-κB can also interact with PI3K/Akt, MAPK, and Nrf2 signaling pathways to participate in HIRI regulation. Based on the role of NF-κB pathway in HIRI, it may be a potential target pathway for HIRI. This review emphasizes the role of inhibiting the NF-κB signaling pathway in oxidative stress, inflammatory response, cell death, and mitochondrial dysfunction in HIRI, as well as the effects of related drugs or inhibitors targeting NF-κB on HIRI. The objective of this review is to elucidate the role and mechanism of NF-κB pathway in HIRI, emphasize the important role of NF-κB pathway in the prevention and treatment of HIRI, and provide a theoretical basis for the target NF-κB pathway as a therapy for HIRI.
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Affiliation(s)
- Rui-Ming Deng
- Department of Anesthesiology, Ganzhou People's Hospital, 16 Meiguan Avenue, Ganzhou, Jiangxi Province, 341000, People's Republic of China
- The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), 16 Meiguan Avenue, Ganzhou, Jiangxi Province, 341000, People's Republic of China
| | - Juan Zhou
- The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), 16 Meiguan Avenue, Ganzhou, Jiangxi Province, 341000, People's Republic of China.
- Department of Thyroid and Breast Surgery, Ganzhou People's Hospital, 16 Meiguan Avenue, Ganzhou, Jiangxi Province, 341000, People's Republic of China.
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11
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Chen G, Li X, Zhou X, Li Y, Yu H, Peng X, Bai X, Zhang C, Feng Z, Mei Y, Li L, Liu Y, Gou X, Jiang Y. Extracellular vesicles secreted from mesenchymal stem cells ameliorate renal ischemia reperfusion injury by delivering miR-100-5p targeting FKBP5/AKT axis. Sci Rep 2024; 14:6720. [PMID: 38509215 PMCID: PMC10954733 DOI: 10.1038/s41598-024-56950-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 03/13/2024] [Indexed: 03/22/2024] Open
Abstract
The incidence of acute kidney injury (AKI) due to ischemia-reperfusion (IR) injury is increasing. There is no effective treatment for AKI, and because of this clinical challenge, AKI often progresses to chronic kidney disease, which is closely associated with poor patient outcomes and high mortality rates. Small extracellular vesicles from human umbilical cord mesenchymal stem cells (hUCMSC-sEVs) play increasingly vital roles in protecting tissue function from the effects of various harmful stimuli owing to their specific biological features. In this study, we found that miR-100-5p was enriched in hUCMSC-sEVs, and miR-100-5p targeted FKBP5 and inhibited HK-2 cell apoptosis by activating the AKT pathway. HK-2 cells that were exposed to IR injury were cocultured with hUCMSC-sEVs, leading to an increase in miR-100-5p levels, a decrease in FKBP5 levels, and an increase in AKT phosphorylation at Ser 473 (AKT-473 phosphorylation). Notably, these effects were significantly reversed by transfecting hUCMSCs with an miR-100-5p inhibitor. Moreover, miR-100-5p targeted FKBP5, as confirmed by a dual luciferase reporter assay. In vivo, intravenous infusion of hUCMSC-sEVs into mice suffering from IR injury resulted in significant apoptosis inhibition, functional maintenance and renal histological protection, which in turn decreased FKBP5 expression levels. Overall, this study revealed an effect of hUCMSC-sEVs on inhibiting apoptosis; hUCMSC-sEVs reduced renal IR injury by delivering miR-100-5p to HK-2 cells, targeting FKBP5 and thereby promoting AKT-473 phosphorylation to activate the AKT pathway. This study provides novel insights into the role of hUCMSC-sEVs in the treatment of AKI.
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Affiliation(s)
- Guo Chen
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Xinyuan Li
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Xiang Zhou
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Yang Li
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Haitao Yu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Xiang Peng
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Xuesong Bai
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Chunlin Zhang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Zhenwei Feng
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Yuhua Mei
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Li Li
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Yu Liu
- Department of Urology, Chongqing Traditional Chinese Medicine Hospital, No.6, Panxi Road(Branch7), Jiangbei, Chongqing, 400021, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Xin Gou
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400000, China
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China
| | - Yuanbin Jiang
- Department of Urology, Chongqing Traditional Chinese Medicine Hospital, No.6, Panxi Road(Branch7), Jiangbei, Chongqing, 400021, China.
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, 400000, China.
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12
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Du M, Zhang S, Wang X, Liu C, Pan L, Chen X, Qi Y. Specific knockout of macrophage SHP2 promotes macrophage M2 polarization and alleviates renal ischemia-reperfusion injury. iScience 2024; 27:109048. [PMID: 38464592 PMCID: PMC10924133 DOI: 10.1016/j.isci.2024.109048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/28/2023] [Accepted: 01/23/2024] [Indexed: 03/12/2024] Open
Abstract
To investigate the effect of specific knockout of SHP2 in mononuclear macrophages on renal ischemia-reperfusion injury and its molecular mechanism. The structural, functional, and pathological changes in the mouse kidney were detected by ultrasound testing. The relative fluorescence intensity of α-SMA, Col1, Col3, and Vim was measured by immunofluorescence staining, and ELISA was performed to detect the concentrations of blood urea nitrogen (BUN), creatinine (Crea), and uric acid (UA). The relative protein expressions of relevant proteins in the mouse kidney tissue were detected by western blotting. Specific knockout of SHP2 could improve both renal function and structure, reduce the relative fluorescence intensity of α-SMA, Col1, Col3 and Vim, lower the concentrations of BUN, Crea, and UA and the expressions of TNF-α, IFNγ, p-NFκB, and p-MyD88, and increase the expressions of p-MerTK, p-FAK, p-PI3K, and p-IκB. The above results illustrate that specific knockdown of macrophage SHP2 promotes macrophage M2 polarization and alleviates renal ischemia-reperfusion injury. The above results illustrate that specific knockdown of macrophage SHP2 promotes macrophage M2 polarization and attenuatesll renal ischemia-reperfusion injury. Specific knockout of macrophage SHP2 promotes macrophage M2 polarization and alleviates renal ischemia-reperfusion injury.
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Affiliation(s)
- Meilian Du
- Department of Nephrology, Pudong New District Punan Hospital, Shanghai 200125, China
| | - Shanbao Zhang
- Department of Nephrology, Pudong New District Punan Hospital, Shanghai 200125, China
| | - Xiaoyu Wang
- Department of Nephrology, Pudong New District Punan Hospital, Shanghai 200125, China
| | - Chen Liu
- Department of Nephrology, Pudong New District Punan Hospital, Shanghai 200125, China
| | - Linrong Pan
- Department of Nephrology, Pudong New District Punan Hospital, Shanghai 200125, China
| | - Xiao Chen
- Department of Nephrology, Pudong New District Punan Hospital, Shanghai 200125, China
| | - Yinghui Qi
- Department of Nephrology, Pudong New District Punan Hospital, Shanghai 200125, China
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13
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Zhang H, Sun K, Gao M, Xu S. Zinc Inhibits Lead-Induced Oxidative Stress and Apoptosis of ST Cells Through ROS/PTEN/PI3K/AKT Axis. Biol Trace Elem Res 2024; 202:980-989. [PMID: 37269454 DOI: 10.1007/s12011-023-03721-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 05/28/2023] [Indexed: 06/05/2023]
Abstract
Lead (Pb) is a widely distributed toxic heavy metal element known to have strong male reproductive toxicity, which can result in issues such as abnormal count and morphology of sperm. Zinc (Zn) is an essential trace element for the human body that can antagonize the activity of Pb in some physiological environments, and it also possesses antioxidant and anti-inflammatory effects. However, the specific mechanism of Zn's antagonism against Pb remains largely unclear. In our study, we conducted research using swine testis cells (ST cells) and confirmed that the half maximal inhibitory concentration of Pb on ST cells was 994.4 μM, and the optimal antagonistic concentration of Zn was 10 μM. Based on this information, we treated ST cells with Pb and Zn and detected related indices such as apoptosis, oxidative stress, and the PTEN/PI3K/AKT pathway using flow cytometry, DCFH-DA staining, RT-PCR, and Western blot. Our results demonstrated that Pb exposure can generate excessive reactive oxygen species (ROS), disrupt the antioxidant system, upregulate PTEN expression, and inhibit the PI3K/AKT pathway in ST cells. In contrast, Zn significantly inhibited the overproduction of ROS, improved oxidative stress, and decreased PTEN expression, thus protecting the PI3K/AKT pathway compared to Pb-exposed ST cells. Furthermore, we found that Pb exposure exacerbated the expression of genes related to the apoptosis pathway and reduced the expression of anti-apoptotic genes. Furthermore, this situation was significantly improved when co-cultured with Pb and Zn. In summary, our study demonstrated that Zn alleviated Pb-induced oxidative stress and apoptosis through the ROS/PTEN/PI3K/AKT axis in ST cells.
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Affiliation(s)
- Haoyu Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Kexin Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Meichen Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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14
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Pan J, Yu Q, Song Y, Cui Z, He Q, Cui M, Mei C, Cui H, Wang H, Li H, Chen S. Histone deacetylase 6 deficiency protects the liver against ischemia/reperfusion injury by activating PI3K/AKT/mTOR signaling. FASEB J 2024; 38:e23477. [PMID: 38334424 DOI: 10.1096/fj.202301445rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 01/14/2024] [Accepted: 01/26/2024] [Indexed: 02/10/2024]
Abstract
Liver transplantation (LT) is the only effective method to treat end-stage liver disease. Hepatic ischemia-reperfusion injury (IRI) continues to limit the prognosis of patients receiving LT. Histone deacetylase 6 (HDAC6) is a unique HDAC member involved in inflammation and apoptosis. However, its role and mechanism in hepatic IRI have not yet been reported. We examined HDAC6 levels in liver tissue from LT patients, mice challenged with liver IRI, and hepatocytes subjected to hypoxia/reoxygenation (H/R). In addition, HDAC6 global-knockout (HDAC6-KO) mice, adeno-associated virus-mediated liver-specific HDAC6 overexpressing (HDAC6-LTG) mice, and their corresponding controls were used to construct hepatic IRI models. Hepatic histology, inflammatory responses, and apoptosis were detected to assess liver injury. The molecular mechanisms of HDAC6 in hepatic IRI were explored in vivo and in vitro. Moreover, the HDAC6-selective inhibitor tubastatin A was used to detect the therapeutic effect of HDAC6 on liver IRI. Together, our results showed that HDAC6 expression was significantly upregulated in liver tissue from LT patients, mice subjected to hepatic I/R surgery, and hepatocytes challenged by hypoxia/reoxygenation (H/R) treatment. Compared with control mice, HDAC6 deficiency mitigated liver IRI by inhibiting inflammatory responses and apoptosis, whereas HDAC6-LTG mice displayed the opposite phenotype. Further molecular experiments show that HDAC6 bound to and deacetylated AKT and HDAC6 deficiency improved liver IRI by activating PI3K/AKT/mTOR signaling. In conclusion, HDAC6 is a key mediator of hepatic IRI that functions to promote inflammation and apoptosis via PI3K/AKT/mTOR signaling. Targeting hepatic HDAC6 inhibition may be a promising approach to attenuate liver IRI.
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Affiliation(s)
- Jie Pan
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qiwen Yu
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
| | - Yaodong Song
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
| | - Zongchao Cui
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
| | - Qianqian He
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
| | - Mengwei Cui
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
| | - Chaopeng Mei
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
| | - Huning Cui
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
| | - Haifeng Wang
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
| | - Huihui Li
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
| | - Sanyang Chen
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, Zhengzhou, China
- Henan Emergency and Trauma Medicine Engineering Research Center, Zhengzhou, China
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15
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Chang LY, Chao YL, Chiu CC, Chen PL, Lin HYH. Mitochondrial Signaling, the Mechanisms of AKI-to-CKD Transition and Potential Treatment Targets. Int J Mol Sci 2024; 25:1518. [PMID: 38338797 PMCID: PMC10855342 DOI: 10.3390/ijms25031518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/14/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
Acute kidney injury (AKI) is increasing in prevalence and causes a global health burden. AKI is associated with significant mortality and can subsequently develop into chronic kidney disease (CKD). The kidney is one of the most energy-demanding organs in the human body and has a role in active solute transport, maintenance of electrochemical gradients, and regulation of fluid balance. Renal proximal tubular cells (PTCs) are the primary segment to reabsorb and secrete various solutes and take part in AKI initiation. Mitochondria, which are enriched in PTCs, are the main source of adenosine triphosphate (ATP) in cells as generated through oxidative phosphorylation. Mitochondrial dysfunction may result in reactive oxygen species (ROS) production, impaired biogenesis, oxidative stress multiplication, and ultimately leading to cell death. Even though mitochondrial damage and malfunction have been observed in both human kidney disease and animal models of AKI and CKD, the mechanism of mitochondrial signaling in PTC for AKI-to-CKD transition remains unknown. We review the recent findings of the development of AKI-to-CKD transition with a focus on mitochondrial disorders in PTCs. We propose that mitochondrial signaling is a key mechanism of the progression of AKI to CKD and potential targeting for treatment.
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Affiliation(s)
- Li-Yun Chang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (L.-Y.C.); (Y.-L.C.)
| | - Yu-Lin Chao
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (L.-Y.C.); (Y.-L.C.)
| | - Chien-Chih Chiu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Phang-Lang Chen
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, CA 92697, USA;
| | - Hugo Y.-H. Lin
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (L.-Y.C.); (Y.-L.C.)
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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16
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Hu Y, Li Q, Wang Y. Serum ACSL4 levels in patients with ST-segment elevation myocardial infarction (STEMI) and its association with one-year major adverse cardiovascular events (MACE): A prospective cohort study. Medicine (Baltimore) 2024; 103:e36870. [PMID: 38215103 PMCID: PMC10783377 DOI: 10.1097/md.0000000000036870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 12/15/2023] [Indexed: 01/14/2024] Open
Abstract
In the present prospective cohort research, we aimed to explore the serum levels of Acyl-CoA synthetase long-chain family member 4 (ACSL4) in patients with ST-segment elevation myocardial infarction (STEMI) and its association with 1-year major adverse cardiovascular events (MACE). This prospective cohort study recruited 507 patients who underwent percutaneous coronary intervention for the treatment of STEMI at our hospital during August 2019 to July 2022. The serum ACSL4, tumor necrosis factor-α, interleukin (IL)-6, IL-1β, and C-reactive protein levels were measured by enzyme-linked immunosorbent assay. Demographic and clinical statistics were also collected. In addition, all patients were followed up for 1 year, and patients with MACE were defined as poor prognosis group. All data used SPSS 26.0 to statistical analyses. The poor prognosis group had significantly higher age and low-density leptin cholesterol (LDLC) levels compared to the favorable prognosis group (P < .05). STEMI patients exhibited significantly elevated serum levels of ACSL4, tumor necrosis factor-α, IL-6, IL-1β, and C-reactive protein (P < .05). Serum ACSL4 and IL-1β levels in the poor prognosis group were remarkably enhanced compared to the favorable prognosis group. Curvilinear regression analysis demonstrated that ACSL4 was associated with LDLC and IL-1β. Moreover, ACSL4 (B = 0.138, 95% CI 1.108-1.189, P < .001), LDLC (B = 2.317, 95% CI 5.253-19.603, P < .001), and IL-1β (B = 0.061, 95%CI 1.008-1.122, P = .025) levels were the risk factors for STEMI patients with 1-year MACE. This study showed that the serum ACSL4 levels was remarkably elevated in STEMI patients. This study might provide new targets and a comprehensive approach to cardiovascular protection in STEMI patients.
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Affiliation(s)
- Yun Hu
- Emergency Department, Wuhan Dongxihu District People’s Hospital, Wuhan, China
| | - Qingye Li
- Emergency Department, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
| | - Yinglin Wang
- Emergency Department, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
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17
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Xia X, Zeng Y, Li Z, Luo H, Wang W, He Y, Lu B, Guo J, Chen K, Xu X. Effect of GRK4 on renal gastrin receptor regulation in hypertension. Clin Exp Hypertens 2023; 45:2245580. [PMID: 37641972 DOI: 10.1080/10641963.2023.2245580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/27/2023] [Accepted: 08/02/2023] [Indexed: 08/31/2023]
Abstract
OBJECTIVE To investigate whether GRK4 regulates the phosphorylation and function of renal CCKBR. METHODS GRK4 A142V transgenic mice were used as an animal model of enhanced GRK4 activity, and siRNA was used to silence the GRK4 gene to investigate the regulatory effect of GRK4 on CCKBR phosphorylation and function. Finally, the co-localization and co-connection of GRK4 and CCKBR in RPT cells were observed by laser confocal microscopy and immunoprecipitation to explore the mechanism of GRK4 regulating CCKBR. RESULTS Gastrin infusion significantly increased urinary flow and sodium excretion rates in GRK4 WT mice (P < .05). GRK4 siRNA did not affect CCKBR protein expression in WKY RPT cells and SHR RPT cells, but remarkably reduced CCKBR phosphorylation in WKY and SHR RPT cells (P < .05). The inhibitory effect of gastrin on Na+-K+ -ATPase activity in WKY RPT cells was further enhanced by the reduction of GRK4 expression (P < .05), while GRK4 siRNA restored the inhibitory effect of gastrin on Na+-K+ -ATPase activity in SHR RPT cells. Laser confocal and Co-immunoprecipitation results showed that GRK4 and CCKBR co-localized in cultured RPT cells' cytoplasm. CONCLUSION GRK4 participates in the development of hypertension by regulating the phosphorylation of renal CCKBR leading to impaired CCKBR function and water and sodium retention. Knockdown of GRK4 restored the function of CCKBR. The enhanced co-connection between GRK4 and CCKBR may be an important reason for the hyperphosphorylation of GRK4 and CCKBR involved in the pathogenesis of hypertension.
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Affiliation(s)
- Xuewei Xia
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P.R. China
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Third Military Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Yongchun Zeng
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P.R. China
- Department of Cardiology, Raffles Hospital Chongqing, Chongqing, China
| | - Zhuxin Li
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P.R. China
| | - Hao Luo
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P.R. China
| | - Wei Wang
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P.R. China
| | - Yanji He
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P.R. China
| | - Bingjun Lu
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P.R. China
| | - Jingwen Guo
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P.R. China
| | - Ken Chen
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P.R. China
| | - Xiang Xu
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Third Military Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
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Sun Y, Jin D, Zhang Z, Ji H, An X, Zhang Y, Yang C, Sun W, Zhang Y, Duan Y, Kang X, Jiang L, Zhao X, Lian F. N6-methyladenosine (m6A) methylation in kidney diseases: Mechanisms and therapeutic potential. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2023; 1866:194967. [PMID: 37553065 DOI: 10.1016/j.bbagrm.2023.194967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/10/2023]
Abstract
The N6-methyladenosine (m6A) modification is regulated by methylases, commonly referred to as "writers," and demethylases, known as "erasers," leading to a dynamic and reversible process. Changes in m6A levels have been implicated in a wide range of cellular processes, including nuclear RNA export, mRNA metabolism, protein translation, and RNA splicing, establishing a strong correlation with various diseases. Both physiologically and pathologically, m6A methylation plays a critical role in the initiation and progression of kidney disease. The methylation of m6A may also facilitate the early diagnosis and treatment of kidney diseases, according to accumulating research. This review aims to provide a comprehensive overview of the potential role and mechanism of m6A methylation in kidney diseases, as well as its potential application in the treatment of such diseases. There will be a thorough examination of m6A methylation mechanisms, paying particular attention to the interplay between m6A writers, m6A erasers, and m6A readers. Furthermore, this paper will elucidate the interplay between various kidney diseases and m6A methylation, summarize the expression patterns of m6A in pathological kidney tissues, and discuss the potential therapeutic benefits of targeting m6A in the context of kidney diseases.
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Affiliation(s)
- Yuting Sun
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - De Jin
- Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Ziwei Zhang
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Hangyu Ji
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xuedong An
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuehong Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Cunqing Yang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wenjie Sun
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuqing Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yingying Duan
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiaomin Kang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Linlin Jiang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xuefei Zhao
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fengmei Lian
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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19
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Nery Neto JADO, Yariwake VY, Câmara NOS, Andrade-Oliveira V. Enteroendocrine cells and gut hormones as potential targets in the crossroad of the gut-kidney axis communication. Front Pharmacol 2023; 14:1248757. [PMID: 37927592 PMCID: PMC10620747 DOI: 10.3389/fphar.2023.1248757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/28/2023] [Indexed: 11/07/2023] Open
Abstract
Recent studies suggest that disruptions in intestinal homeostasis, such as changes in gut microbiota composition, infection, and inflammatory-related gut diseases, can be associated with kidney diseases. For instance, genomic investigations highlight how susceptibility genes linked to IgA nephropathy are also correlated with the risk of inflammatory bowel disease. Conversely, investigations demonstrate that the use of short-chain fatty acids, produced through fermentation by intestinal bacteria, protects kidney function in models of acute and chronic kidney diseases. Thus, the dialogue between the gut and kidney seems to be crucial in maintaining their proper function, although the factors governing this crosstalk are still emerging as the field evolves. In recent years, a series of studies have highlighted the significance of enteroendocrine cells (EECs) which are part of the secretory lineage of the gut epithelial cells, as important components in gut-kidney crosstalk. EECs are distributed throughout the epithelial layer and release more than 20 hormones in response to microenvironment stimuli. Interestingly, some of these hormones and/or their pathways such as Glucagon-Like Peptide 1 (GLP-1), GLP-2, gastrin, and somatostatin have been shown to exert renoprotective effects. Therefore, the present review explores the role of EECs and their hormones as regulators of gut-kidney crosstalk and their potential impact on kidney diseases. This comprehensive exploration underscores the substantial contribution of EEC hormones in mediating gut-kidney communication and their promising potential for the treatment of kidney diseases.
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Affiliation(s)
- José Arimatéa de Oliveira Nery Neto
- Bernardo’s Lab, Center for Natural and Human Sciences, Federal University of ABC, Santo André, Brazil
- Laboratory of Transplantation Immunobiology, Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Victor Yuji Yariwake
- Bernardo’s Lab, Center for Natural and Human Sciences, Federal University of ABC, Santo André, Brazil
- Laboratory of Transplantation Immunobiology, Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Niels Olsen Saraiva Câmara
- Laboratory of Transplantation Immunobiology, Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Vinicius Andrade-Oliveira
- Bernardo’s Lab, Center for Natural and Human Sciences, Federal University of ABC, Santo André, Brazil
- Laboratory of Transplantation Immunobiology, Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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20
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Wu G, Wu Y. Neuroprotective effect of Kurarinone against corticosterone-induced cytotoxicity on rat hippocampal neurons by targeting BACE1 to activate P13K-AKT signaling - A potential treatment in insomnia disorder. Pharmacol Res Perspect 2023; 11:e01132. [PMID: 37740616 PMCID: PMC10517343 DOI: 10.1002/prp2.1132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 09/24/2023] Open
Abstract
The hippocampus has been implicated in the pathogenesis of insomnia disorder (ID) and the purpose of this study was to investigate the neuroprotective mechanism of the natural flavone Kurarinone (Kur) on hippocampal neurotoxicity as a potential treatment of ID. The effect of Kur on hippocampal neuronal cell (HNC) viability and apoptosis were assessed by Cell counting kit-8 (CCK-8) assay and flow cytometry, respectively. Then, the effect of Kur on β-site amyloid precursor protein-cleaving enzyme 1 (BACE1), brain-derived neurotrophic factor (BDNF), and phosphatidylinositol-3-kinase (PI3K)/protein kinase B (AKT) phosphorylation level were measured by Western blot. Further, SwissTargetPrediction analysis and molecular docking experiments were used to detect a potential target of Kur. Then, the p-chlorophenylalanine (PCPA) model was established in vivo to further study the effect of BACE1 expression on Kur and HNC. As a result, HNC viability was only significantly decreased by 2 μM of Kur. Kur reversed the impacts of corticosterone upon inhibiting viability (0.25-1 μM), PI3K (0.5-1 μM)/AKT phosphorylation, and BDNF (1 μM) level, and enhancing the apoptosis (0.25-1 μM) and BACE1 expression (1 μM) in HNCs. BACE1 was a potential target of Kur. Notably, Kur (150 mg/kg) attenuated PCPA-induced upregulation of BACE1 expression in rat hippocampal tissues as ZRAS (0.8 g/kg). The effects of Kur (1 μM) on corticosterone-treated HNCs were reversed by BACE1 overexpression. Collectively, Kur downregulates BACE1 level to activate PI3K/AKT, thereby attenuating corticosterone-induced toxicity in HNCs, indicating that Kur possibly exerted a neuroprotective effect, which providing a new perspective for the treatment of insomnia disorders.
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Affiliation(s)
- Guoqing Wu
- Department of MedicineTongde Hospital of Zhejiang ProvinceHangzhouChina
- Zhejiang Institute of Traditional Chinese MedicineHangzhouChina
- Zhejiang Provincial Key Laboratory of New Chinese Medicine Research and DevelopmentHangzhouChina
| | - Yanyan Wu
- Department of MedicineTongde Hospital of Zhejiang ProvinceHangzhouChina
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21
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Yang C, Xu H, Yang D, Xie Y, Xiong M, Fan Y, Liu X, Zhang Y, Xiao Y, Chen Y, Zhou Y, Song L, Wang C, Peng A, Petersen RB, Chen H, Huang K, Zheng L. A renal YY1-KIM1-DR5 axis regulates the progression of acute kidney injury. Nat Commun 2023; 14:4261. [PMID: 37460623 PMCID: PMC10352345 DOI: 10.1038/s41467-023-40036-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 07/10/2023] [Indexed: 07/20/2023] Open
Abstract
Acute kidney injury (AKI) exhibits high morbidity and mortality. Kidney injury molecule-1 (KIM1) is dramatically upregulated in renal tubules upon injury, and acts as a biomarker for various renal diseases. However, the exact role and underlying mechanism of KIM1 in the progression of AKI remain elusive. Herein, we report that renal tubular specific knockout of Kim1 attenuates cisplatin- or ischemia/reperfusion-induced AKI in male mice. Mechanistically, transcription factor Yin Yang 1 (YY1), which is downregulated upon AKI, binds to the promoter of KIM1 and represses its expression. Injury-induced KIM1 binds to the ECD domain of death receptor 5 (DR5), which activates DR5 and the following caspase cascade by promoting its multimerization, thus induces renal cell apoptosis and exacerbates AKI. Blocking the KIM1-DR5 interaction with rationally designed peptides exhibit reno-protective effects against AKI. Here, we reveal a YY1-KIM1-DR5 axis in the progression of AKI, which warrants future exploration as therapeutic targets.
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Affiliation(s)
- Chen Yang
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Huidie Xu
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dong Yang
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Yunhao Xie
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Mingrui Xiong
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yu Fan
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - XiKai Liu
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Yu Zhang
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yushuo Xiao
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yuchen Chen
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yihao Zhou
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Liangliang Song
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Chen Wang
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Anlin Peng
- Department of Pharmacy, The Third Hospital of Wuhan, Tongren Hospital of Wuhan University, Wuhan, 430070, China
| | - Robert B Petersen
- Foundational Sciences, Central Michigan University College of Medicine, Mt. Pleasant, MI, 48859, USA
| | - Hong Chen
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Kun Huang
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Tongji-RongCheng Biomedical Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Ling Zheng
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
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Zhang L, Wang X, He S, Zhang F, Li Y. Gypenosides suppress fibrosis of the renal NRK-49F cells by targeting miR-378a-5p through the PI3K/AKT signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2023; 311:116466. [PMID: 37031821 DOI: 10.1016/j.jep.2023.116466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/20/2023] [Accepted: 04/03/2023] [Indexed: 06/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The incidence of renal fibrosis caused by chronic kidney disease is increasing year by year. Preventing the activation and conversion of kidney-intrinsic fibroblasts to a myofibroblast phenotype is an important target for blocking the development of renal interstitial fibrosis. Our team established a stable renal interstitial fibrosis cell model in the early stage, and the screening results showed that GPs has good anti-fibrosis potential. At this stage, only a few literatures have reported its anti-fibrosis effect, and the mechanism of action is still unclear. AIM OF THE STUDY The massive synthesis and secretion of extracellular-matrix (ECM) components by activated fibroblasts in the kidneys causes irreversible renal interstitial fibrosis. Gypenosides (GPs) have been shown to decelerate this process, in which micro RNAs (miRNAs) play an important regulatory role. This study aimed to evaluate the mechanism underlying the suppressive effect of GPs on renal fibrosis. MATERIALS AND METHODS This study used TGF-β1-stimulated NRK-49F renal cells as an in-vitro model of renal interstitial fibrosis. First, the concentration range of GPs that significantly affects the cytoactive was determined. Then, the anti-fibrotic effects of various concentrations of GPs in the in-vitro model were assessed via immunofluorescence, western blotting, and quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Non-coding-RNA sequencing combined with bioinformatics was used to predict the mechanistic basis of the anti-fibrotic effect of GPs, and qRT-PCR was used to verify the sequencing results and bioinformatic predictions. The identified relationships of the anti-fibrotic effect of GPs with miR-378a-5p and the PI3K/AKT signaling were evaluated using a miR-NC mimic and the PI3K inhibitor LY294002 as controls, respectively. RESULTS TGF-β1 stimulation up-regulated α-SMA, COL1, and COL3 in NRK-49F cells, and this effect was suppressed by GPs. Additionally, TGF-β1 stimulation significantly changed the expression levels of 151 miRNAs, and GPs significantly suppressed the effect of TGF-β1 on the levels of 18 of these miRNAs. Among them, miR-3588 and miR-378a-5p were down-regulated, and miR-135b-5p and miR-3068-5p were up-regulated upon TGF-β1 induction. Of these miRNAs, miR-378a-5p was predicted to target the mRNAs of numerous proteins mainly enriched in the PI3K/AKT signaling pathway. The miRNA transfection experiments with the miR-NC mimic and PI3K inhibitor as controls showed that miR-378a-5p overexpression could suppress the TGF-β1-induced up-regulation of α-SMA, COL1, PI3K, and AKT, including the phosphorylated form (p-AKT). CONCLUSION GPs inhibit the PI3K/AKT signaling by up-regulating miR-378a-5p in TGF-β1-stimulated NRK-49F cells and thereby reduce their massive secretion of ECM components. Given that this in-vitro model of renal interstitial fibrosis closely mimics the in-vivo pathogenesis, our results most likely apply to the in-vivo conditions.
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Affiliation(s)
- Lan Zhang
- Chinese Medicine School, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China.
| | - Xiting Wang
- Academy of Mathematics and Systems Science, Chinese Academy of Sciences, No. 55 Zhongguancun East Road, Beijing, 100190, China.
| | - Shuangshuang He
- Chinese Medicine School, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China.
| | - Fang Zhang
- Chinese Medicine School, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China.
| | - Yu Li
- Chinese Medicine School, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China.
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23
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Zhang B, Yang W, Chen L. Secreted phosphoprotein 1 exacerbates renal ischemia-reperfusion injury by inhibiting PI3K/AKT signaling pathway. Tissue Cell 2023; 83:102154. [PMID: 37429131 DOI: 10.1016/j.tice.2023.102154] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/02/2023] [Accepted: 06/30/2023] [Indexed: 07/12/2023]
Abstract
BACKGROUND Renal ischemia-reperfusion injury (IRI) is a prevalent reason for acute kidney injury and a key clinical issue for patients under anesthesia and about to have surgery. We aim to investigate the Secreted phosphoprotein 1 (SPP1) role in renal IRI and the underlying mechanisms. METHODS Using Gene Expression Omnibus (GEO) database helped in analyzing the SPP1 expression in renal IRI. We established two models, a mouse renal ischemia-reperfusion (I/R) besides a hypoxia-reoxygenation (H/R) HK-2 cell. Renal tubular lesions were measured using H&E staining. Depending on the TUNEL assay, immunohistochemistry, qRT-PCR, as well as western blot, we applied the assessment of apoptosis and apoptosis-associated protein levels. At the same time, a western blot was performed for assessing PI3K/AKT pathway-associated proteins. RESULTS GEO data and experimental validation revealed elevated SPP1 content in the kidney tissues of renal I/R mice more than in sham mice. In vitro and in vivo studies revealed an increase in cell apoptosis due to SPP1 overexpression, but the opposite is true when SPP1 is silenced. SPP1 downregulation led to high p-PI3K and p-AKT protein levels, and the LY294002 application inhibited SPP1 inhibition-mediated anti-apoptotic effect CONCLUSION: Taken together, SPP1 exacerbates renal IRI in vivo and in vitro via promoting programmed cell death by inhibiting PI3K/AKT signaling pathway.
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Affiliation(s)
- Bokang Zhang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, 230031, PR China
| | - Wan Yang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, 230031, PR China
| | - Lanren Chen
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, 230031, PR China.
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24
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Liu Y, Liu Q, Zhang Z, Yang Y, Zhou Y, Yan H, Wang X, Li X, Zhao J, Hu J, Yang S, Tian Y, Yao Y, Qiu Z, Song Y, Yang Y. The regulatory role of PI3K in ageing-related diseases. Ageing Res Rev 2023; 88:101963. [PMID: 37245633 DOI: 10.1016/j.arr.2023.101963] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 05/30/2023]
Abstract
Ageing is a physiological/pathological process accompanied by the progressive damage of cell function, triggering various ageing-related disorders. Phosphatidylinositol 3-kinase (PI3K), which serves as one of the central regulators of ageing, is closely associated with cellular characteristics or molecular features, such as genome instability, telomere erosion, epigenetic alterations, and mitochondrial dysfunction. In this review, the PI3K signalling pathway was firstly thoroughly explained. The link between ageing pathogenesis and the PI3K signalling pathway was then summarized. Finally, the key regulatory roles of PI3K in ageing-related illnesses were investigated and stressed. In summary, we revealed that drug development and clinical application targeting PI3K is one of the focal points for delaying ageing and treating ageing-related diseases in the future.
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Affiliation(s)
- Yanqing Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Qiong Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Zhe Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yaru Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yazhe Zhou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Huanle Yan
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Xin Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Xiaoru Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Jing Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Jingyan Hu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Shulin Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yifan Tian
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yu Yao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Zhenye Qiu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yanbin Song
- Department of Cardiology, Affiliated Hospital, Yan'an University, 43 North Street, Yan'an 716000, China.
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China.
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25
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Zheng Y, Wu S, Huang X, Luo L. Ferroptosis-Related lncRNAs Act as Novel Prognostic Biomarkers in the Gastric Adenocarcinoma Microenvironment, Immunotherapy, and Chemotherapy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:9598783. [PMID: 37251440 PMCID: PMC10219779 DOI: 10.1155/2023/9598783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 03/01/2023] [Accepted: 04/21/2023] [Indexed: 05/31/2023]
Abstract
Ferroptosis, a form of programmed cell death akin to necrosis, is managed by iron and is distinguished by lipid peroxidation. Gastric cancer is a highly aggressive form of cancer, responsible for the third highest number of cancer-related deaths globally. Despite this, the potential of ferroptosis to predict the occurrence of this cancer is yet to be determined. In this research, a comprehensive examination was conducted to explore the link between long noncoding RNAs (lncRNAs) and ferroptosis, in order to uncover an lncRNA signature that can predict drug susceptibility and tumor mutational burden (TMB) in gastric adenocarcinoma. We conducted an in-depth analysis of the GC immune microenvironment and immunotherapy, with a particular focus on ferroptosis-related lncRNA prognostic biomarkers, and further explored the correlation between these factors and prognosis, immune infiltration, single nucleotide variation (SNV), and drug sensitivity for gastric adenocarcinoma patients. Through our investigations, we have discovered five lncRNA signatures related to ferroptosis that can accurately forecast the prognosis of gastric adenocarcinoma patients and also regulate the proliferation, migration, and occurrence of ferroptosis in gastric adenocarcinoma cells. In conclusion, this lncRNA signature associated with ferroptosis may be employed as a prognostic indicator for gastric adenocarcinoma, thus presenting a potential solution.
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Affiliation(s)
- Yushi Zheng
- The First Clinical College, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Shanshan Wu
- Department of Biology, School of Basic Medical Science, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Xueshan Huang
- Department of Biology, School of Basic Medical Science, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong 524023, China
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26
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Sun X, Huang N, Li P, Dong X, Yang J, Zhang X, Zong WX, Gao S, Xin H. TRIM21 ubiquitylates GPX4 and promotes ferroptosis to aggravate ischemia/reperfusion-induced acute kidney injury. Life Sci 2023; 321:121608. [PMID: 36958437 DOI: 10.1016/j.lfs.2023.121608] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/16/2023] [Accepted: 03/16/2023] [Indexed: 03/25/2023]
Abstract
AIMS This study aims to verify the molecular mechanism that Tripartite motif containing 21 (TRIM21) promotes ubiquitination degradation of glutathione peroxidase 4 (GPX4) by regulating ferroptosis, and to discuss the feasibility of TRIM21 as a new therapeutic target for acute kidney injury (AKI). MATERIALS AND METHODS Ischemia-reperfusion (I/R)-AKI model was constructed using Trim21+/+ and Trim21-/- mice, and the expression of markers associated with kidney injury and ferroptosis were evaluated. HK-2 cells were treated by RSL3 and Erastin, and a hypoxia/reoxygenation (H/R) model was constructed to simulate I/R injury in vivo. KEY FINDINGS In vivo, TRIM21 is highly expressed in I/R kidney tissues. Loss of TRIM21 alleviated I/R-AKI and improved renal function. The upregulation of GPX4, a key ferroptosis regulator, and the mild mitochondrial damage suggested that loss of TRIM21 had a negative regulation of ferroptosis. In vitro, TRIM21 was highly expressed in H/R models, and overexpression of TRIM21 in HK-2 cells increased ROS production, promoted intracellular iron accumulation, and boosted cellular sensitivity to RSL3 and Erastin. Mechanistically, we confirmed that GPX4 is a substrate of TRIM21 and can be degraded by TRIM21-mediated ubiquitination, suggesting that inhibiting TRIM21 attenuates ferroptosis. A JAK2 inhibitor Fedratinib downregulated TRIM21 expression and reduced damage both in vivo and in vitro, which is correlated with the upregulation of GPX4. SIGNIFICANCE Our study showed that loss of TRIM21 could alleviate ferroptosis induced by I/R, revealed the mechanism of ubiquitination degradation of GPX4 by TRIM21 and suggested TRIM21 is a potential target for the treatment of AKI.
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Affiliation(s)
- Xiaolin Sun
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Ning Huang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Peng Li
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Xinyi Dong
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Jiahong Yang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Xuemei Zhang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Wei-Xing Zong
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Shenglan Gao
- Department of Cellular and Genetic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Hong Xin
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China.
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27
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Liraglutide Attenuates Myocardial Ischemia/Reperfusion Injury Through the Inhibition of Necroptosis by Activating GLP-1R/PI3K/Akt Pathway. Cardiovasc Toxicol 2023; 23:161-175. [PMID: 36934206 DOI: 10.1007/s12012-023-09789-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 03/03/2023] [Indexed: 03/20/2023]
Abstract
Necroptosis is a crucial programmed cell death that is tightly associated with myocardial ischemia/reperfusion injury (MI/RI). Liraglutide is an effective option for the treatment of type 2 diabetes and has recently been reported to exert cardioprotective effects on MI/RI. Researchers do not know whether the cardioprotective effect of liraglutide is involved in regulating necroptosis. This study aimed to explore the effect of liraglutide on MI/RI-induced necroptosis and its potential mechanisms. Hypoxia/reoxygenation (H/R) was performed on H9c2 cells in vitro to simulate ischemia/reperfusion (I/R) injury, and an MI/RI rat model was established in vivo by ligating the anterior descending branch of the left coronary artery. H/R or I/R damage was assessed by performing biochemical assay, Hoechst 33342/PI staining, H&E (hematoxylin and eosin) staining, and Annexin-V/PI staining. Our data revealed that liraglutide resulted in markedly increased cell viability and reduced cardiac enzyme release by protecting cardiomyocytes from a necrosis-like phenotype after H/R. The myocardial infarct size and cardiac enzyme release were reduced in the heart tissues from the liraglutide-treated group. The levels of necroptosis-associated proteins (receptor-interacting protein kinase 3 (RIPK3), p-RIPK3, and phosphorylated-mixed lineage kinase domain-like protein (p-MLKL)) were also reduced by the liraglutide treatment. Mechanistically, we revealed that liraglutide exerted cardioprotective effects through a glucagon-like peptide-1 receptor (GLP-1R) and phosphatidylinositol-3 kinase (PI3K)-dependent pathway. Both the GLP-1R inhibitor exendin (9-39) and the PI3K inhibitor LY294002 abrogated the protective effects of liraglutide in vitro. We found that liraglutide may attenuate MI/RI by inhibiting necroptosis, in part by enhancing the activity of the GLP-1R/PI3K/Akt pathway.
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28
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Blackberry-Loaded AgNPs Attenuate Hepatic Ischemia/Reperfusion Injury via PI3K/Akt/mTOR Pathway. Metabolites 2023; 13:metabo13030419. [PMID: 36984859 PMCID: PMC10051224 DOI: 10.3390/metabo13030419] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/14/2023] Open
Abstract
Liver ischemia-reperfusion injury (IRI) is a pathophysiological insult that often occurs during liver surgery. Blackberry leaves are known for their anti-inflammatory and antioxidant activities. Aims: To achieve site-specific delivery of blackberry leaves extract (BBE) loaded AgNPs to the hepatocyte in IRI and to verify possible molecular mechanisms. Methods: IRI was induced in male Wister rats. Liver injury, hepatic histology, oxidative stress markers, hepatic expression of apoptosis-related proteins were evaluated. Non-targeted metabolomics for chemical characterization of blackberry leaves extract was performed. Key findings: Pre-treatment with BBE protected against the deterioration caused by I/R, depicted by a significant improvement of liver functions and structure, as well as reduction of oxidative stress with a concomitant increase in antioxidants. Additionally, BBE promoted phosphorylation of antiapoptotic proteins; PI3K, Akt and mTOR, while apoptotic proteins; Bax, Casp-9 and cleaved Casp-3 expressions were decreased. LC-HRMS-based metabolomics identified a range of metabolites, mainly flavonoids and anthocyanins. Upon comprehensive virtual screening and molecular dynamics simulation, the major annotated anthocyanins, cyanidin and pelargonidin glucosides, were suggested to act as PLA2 inhibitors. Significance: BBE can ameliorate hepatic IRI augmented by BBE-AgNPs nano-formulation via suppressing, oxidative stress and apoptosis as well as stimulation of PI3K/Akt/mTOR signaling pathway.
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29
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Wang J, Zhang A, Huang F, Xu J, Zhao M. MSC-EXO and tempol ameliorate bronchopulmonary dysplasia in newborn rats by activating HIF-1α. Pediatr Pulmonol 2023; 58:1367-1379. [PMID: 36650825 DOI: 10.1002/ppul.26317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 12/25/2022] [Accepted: 01/15/2023] [Indexed: 01/19/2023]
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is a major complication of premature infants and an important cause of morbidity and mortality. This study investigates the effect of the combination of mesenchymal stem cells-derived exosomes (MSC-EXO) and tempol on BPD and analyzes its mechanism. METHODS MSC-EXO was extracted by centrifugation and identified by transmission electron microscopy (TEM), nanoparticle tracking analysis, and western blot analysis (WB). Tidal volume (TV), minute ventilation (MV), peak inspiratory flow (PIF), and dynamic pulmonary compliance (Cdyn) of rats were measured by BuxCo pulmonary function experimental platform. Hematoxylin-eosin staining was performed to observe the lung morphology and radical alveolar count (RAC) and mean linear intercept (MLI) were assessed. Immunofluorescence (IF) was conducted to detect the expression of CD31 and α-SMA in pulmonary blood vessels. The kits were used to calculate malondialdehyde (MDA), superoxide dismutase (SOD), and total antioxidant capacity (TAOC) concentration in lung tissue. Enzyme linked immunosorbent assay was applied to detect the levels of IL-1β, IL-17, IL-6, and IFN-γ in bronchoalveolar lavage fluid. In addition, the expressions of HIF-1α, vascular endothelial growth factor (VEGF), p-PI3K, and p-AKT were analyzed by WB and IF. RESULTS We successfully extracted and identified MSC-EXO. In BPD rats, TV, MV, PIF, and Cdyn decreased, alveoli were simplified, and the number of interalveoli small vessels, blood vessel density decreased. Moreover, RAC, CD31, TAOC, and SOD decreased, and MLI, α-SMA, MDA, IL-1β, IL-17, IL-6, and IFN-γ increased, which was reversed by the combination of MSC-EXO and tempol treatment after combined treatment. In addition, the expression levels of HIF-1α, VEGF, p-PI3K, and p-AKT were increased after combined treatment. CONCLUSIONS Combined treatment could improve lung tissue injury, promote pulmonary vascular remodeling, restore lung function, and inhibit oxidative stress in BPD rats. These effects were achieved through activation of HIF-1α.
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Affiliation(s)
- Juanmei Wang
- Department of Pediatrics, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China.,Hunan Provincial Key Laboratory of Pediatric Respirology, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Aimin Zhang
- Department of Pediatrics, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Furong Huang
- Department of Pediatrics, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Jun Xu
- Department of Pediatrics, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Menghua Zhao
- Department of Pediatrics, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
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Alaaeldin R, Bakkar SM, Mohyeldin RH, Ali FEM, Abdel-Maqsoud NMR, Fathy M. Azilsartan Modulates HMGB1/NF-κB/p38/ERK1/2/JNK and Apoptosis Pathways during Renal Ischemia Reperfusion Injury. Cells 2023; 12:cells12010185. [PMID: 36611978 PMCID: PMC9818604 DOI: 10.3390/cells12010185] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 01/03/2023] Open
Abstract
Renal ischemia/reperfusion (IR) injury is characterized by an unexpected impairment of blood flow to the kidney. Azilsartan is an angiotensin receptor blocker that is approved for the management of hypertension. The present study aimed to investigate, on molecular basics, the nephroprotective activity of azilsartan on renal IR injury in rats. Rats were assigned into four groups: (1) Sham group, (2) Azilsartan group, (3) IR group, and (4) IR/Azilsartan-treated group. Histological examination and renal function were evaluated. Levels of KIM-1, HMGB1, caspase 3, GPX, SOD, NF-κB, and p53 proteins were investigated using ELISA. mRNA levels of IL-1β, IL6, IL10, TNF-α, NF-κB, p53, and bax were assessed by qRT-PCR. Expression of p38, JNK, and ERK1/2 proteins was investigated by Western blotting. IR injury resulted in tissue damage, elevation of creatinine, BUN, KIM-1, HMGB1, caspase 3, NF-κB, and p53 levels, decreasing GPX and SOD activities, and up-regulation of NF-κB, IL-1β, IL6, TNF-α, p53, and bax genes. Furthermore, it up-regulated the expression of phosphorylated/total ratio of p38, ERK1/2, and JNK proteins. Interestingly, treatment of the injured rats with azilsartan significantly alleviated IR injury-induced histopathological and biochemical changes. It reduced the creatinine, BUN, KIM-1, HMGB1, caspase-3, NF-κB, and p53 levels, elevated GPX and SOD activities, down-regulated the expression of NF-κB, IL-1β, IL6, TNF-α, p53, and bax genes, and up-regulated IL10 gene expression. Furthermore, it decreased the phosphorylated/total ratio of p38, ERK1/2, and JNK proteins. Azilsartan exhibited nephroprotective activity in IR-injured rats via its antioxidant effect, suppression of inflammation, attenuation of apoptosis, and inhibition of HMGB1/NF-κB/p38/ERK1/2/JNK signaling pathway.
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Affiliation(s)
- Rania Alaaeldin
- Department of Biochemistry, Faculty of Pharmacy, Deraya University, Minia 61519, Egypt
| | - Sally M. Bakkar
- Department of Biochemistry, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Reham H. Mohyeldin
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Deraya University, Minia 61519, Egypt
| | - Fares E. M. Ali
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | | | - Moustafa Fathy
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia 61511, Egypt
- Department of Regenerative Medicine, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
- Correspondence:
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31
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Li DD, Li N, Cai C, Wei CM, Liu GH, Wang TH, Xu FR. A molecular network-based pharmacological study on the protective effect of Panax notoginseng rhizomes against renal ischemia-reperfusion injury. Front Pharmacol 2023; 14:1134408. [PMID: 37144215 PMCID: PMC10151715 DOI: 10.3389/fphar.2023.1134408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 04/03/2023] [Indexed: 05/06/2023] Open
Abstract
Objective: We aimed to explore the protective effect of Panax notoginseng rhizomes (PNR) on renal ischemia and reperfusion injury (RIRI) and the underlying molecular network mechanism based on network pharmacology and combined systemic experimental validation. Methods: A bilateral RIRI model was established, and Cr, SCr, and BUN levels were detected. Then, the PNR was pretreated 1 week before the RIRI model was prepared. To determine the effects of the PNR in RIRI, histopathological damage and the effect of PNRs to the kidney was assessed, using TTC, HE, and TUNEL staining. Furthermore, the underlying network pharmacology mechanism was detected by screening drug-disease intersection targets from PPI protein interactions and GO and KEGG analysis, and the hub genes were screened for molecular docking based on the Degree value. Finally, the expression of hub genes in kidney tissues was verified by qPCR, and the protein expression of related genes was further detected by Western blot (WB). Results: PNR pretreatment could effectively increase Cr level, decrease SCr and BUN levels, reduce renal infarct areas and renal tubular cell injury areas, and inhibit renal cell apoptosis. By using network pharmacology combined with bioinformatics, we screened co-targets both Panax notoginseng (Sanchi) and RIRI, acquired ten hub genes, and successfully performed molecular docking. Of these, pretreatment with the PNR reduced the mRNA levels of IL6 and MMP9 at postoperative day 1 and TP53 at postoperative day 7, and the protein expression of MMP9 at postoperative day 1 in IRI rats. These results showed that the PNR could decrease kidney pathological injury in IRI rats and inhibit apoptotic reaction and cell inflammation so as to improve renal injury effectively, and the core network mechanism is involved in the inhibition of MMP9, TP53, and IL-6. Conclusion: The PNR has a marked protective effect for RIRI, and the underlying mechanism is involved in inhibiting the expression of MMP9, TP53, and IL-6. This striking discovery not only provides fruitful evidence for the protective effect of the PNR in RIRI rats but also provides a novel mechanic explanation.
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Affiliation(s)
- Dan-Dan Li
- Yunnan Key Laboratory of Dai and Yi Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Na Li
- Department of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan, China
| | - Chui Cai
- Yunnan Key Laboratory of Dai and Yi Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Chun-Mian Wei
- Yunnan Key Laboratory of Dai and Yi Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Guang-Hua Liu
- Yunnan Key Laboratory of Dai and Yi Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Ting-Hua Wang
- Department of Laboratory Animal Science, Kunming Medical University, Kunming, Yunnan, China
- *Correspondence: Ting-Hua Wang, ; Fu-Rong Xu,
| | - Fu-Rong Xu
- Yunnan Key Laboratory of Dai and Yi Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- *Correspondence: Ting-Hua Wang, ; Fu-Rong Xu,
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32
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Zhou M, Zhang H, Chen H, Qi B. Adiponectin protects skeletal muscle from ischaemia–reperfusion injury in mice through
miR
‐21/
PI3K
/Akt signalling pathway. Int Wound J 2022; 20:1647-1661. [PMID: 36426910 PMCID: PMC10088838 DOI: 10.1111/iwj.14022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 11/26/2022] Open
Abstract
Previous studies have confirmed that adiponectin (APN) plays a protective role in myocardial ischaemia-reperfusion (IR) injury, and the aim of this study was to investigate its effect on skeletal muscle. ELISA was used to detect the levels of Creatinine Kinase (CK), LDH, SOD and MDA in the plasma of the lower limbs of mice, and the levels of IL-6, IL-1β and TNF-α in the gastrocnemius. Quantitative PCR was used to detect the expression level of miR-21. TUNEL staining was used to detect the apoptosis of the gastrocnemius. The expression levels of apoptosis proteins, autophagy marker proteins and downstream target genes of miR-21 in gastrocnemius were detected by Western Blot. The results of this study revealed that APN levels were significantly reduced in gastrocnemius of IR mice. The oxidative stress, inflammatory response, apoptosis and autophagy induced by IR were significantly ameliorated by APN injection. The above effects of APN may be achieved through miR-21/PI3K signalling pathway, as found by interfering gene expression levels with miRNA antagomir and lentiviral injection. Taken together, our study revealed that APN protects skeletal muscle from IR injury through miR-21 /PI3K/Akt signalling pathway through inhibiting inflammatory response, apoptosis and autophagy.
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Affiliation(s)
- Min Zhou
- Department of Orthopedics Trauma and Microsurgery Zhongnan Hospital of Wuhan University Wuhan China
| | - Hao Zhang
- Department of Orthopedics Trauma and Microsurgery Zhongnan Hospital of Wuhan University Wuhan China
| | - Hairen Chen
- Department of Orthopedics Trauma and Microsurgery Zhongnan Hospital of Wuhan University Wuhan China
| | - Baiwen Qi
- Department of Orthopedics Trauma and Microsurgery Zhongnan Hospital of Wuhan University Wuhan China
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33
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Wang Y, Han K, Li Z, Tang X, Wang C, Zhao Y, Zhang H, Geng Z, Kong J, Luan X, Xiong Y. Protective effect of hydroxysafflor yellow A on renal ischemia‑-reperfusion injury by targeting the Akt‑Nrf2 axis in mice. Exp Ther Med 2022; 24:741. [PMID: 36478883 PMCID: PMC9716340 DOI: 10.3892/etm.2022.11677] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 10/14/2022] [Indexed: 01/25/2023] Open
Abstract
Ischemic/reperfusion (I/R) injury is the primary cause of acute kidney injury (AKI). Hydroxysafflor yellow A (HSYA), a natural compound isolated from Carthamus tinctorius L., has been found to possess anti-inflammatory and antioxidant properties. However, the protective effects and potential mechanism of HSYA on I/R-induced AKI remains unclear. In the present study, the in vitro hypoxia/reoxygenation (H/R) and in vivo renal I/R models were employed to investigate the renal protective effects and molecular mechanisms of HSYA on I/R-induced AKI. The present results indicated that HSYA pretreatment significantly ameliorated renal damage and dysfunction in the I/R injury mice via enhancing the antioxidant capacity and suppressing the oxidative stress injury, inflammatory response, and apoptosis. Mechanistic studies showed that HSYA could upregulate Akt/GSK-3β/Fyn-Nrf2 axis-mediated antioxidant gene expression both in vitro and in vivo. Moreover, HSYA-mediated improvement in antioxidant, anti-inflammatory, and anti-apoptotic effects in H/R-treated HK-2 cells was abrogated by Akt inhibitor LY294002 supplementation. In summary, the present results demonstrated that HSYA attenuated kidney oxidative stress, inflammation response, and apoptosis induced by I/R, at least in part, via activating the Akt/GSK-3β/Fyn-Nrf2 axis pathway. These findings provided evidence that HSYA may be applied as a potential therapeutic agent in the treatment of I/R induced AKI.
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Affiliation(s)
- Yueming Wang
- Department of Pathogen Biology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China
| | - Kaiyue Han
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China
| | - Zile Li
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China
| | - Xiaoxuan Tang
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China
| | - Chen Wang
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China
| | - Yaxuan Zhao
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China
| | - Hengchao Zhang
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China
| | - Ziran Geng
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China
| | - Jie Kong
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China
| | - Xiying Luan
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China,Correspondence to: Professor Xiying Luan or Professor Yanlian Xiong, Department of Immunology, School of Basic Medicine, Binzhou Medical University, 346 Guanhai Road, Yantai, Shandong 264003, P.R. China
| | - Yanlian Xiong
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai 264003, P.R. China,Correspondence to: Professor Xiying Luan or Professor Yanlian Xiong, Department of Immunology, School of Basic Medicine, Binzhou Medical University, 346 Guanhai Road, Yantai, Shandong 264003, P.R. China
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Shan X, Zhang J, Wei X, Tao W, Peng K, Liu H, Wang Y, Liu H, Meng X, Ji F. Dexmedetomidine attenuates renal ischemia-reperfusion injury through activating PI3K/Akt-eNOS signaling via α 2 adrenoreceptors in renal microvascular endothelial cells. FASEB J 2022; 36:e22608. [PMID: 36250975 DOI: 10.1096/fj.202101626rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 08/24/2022] [Accepted: 09/29/2022] [Indexed: 11/11/2022]
Abstract
Renal microvascular endothelial cells (RMECs), which are closely related to regulation of vascular reactivity and modulation of inflammation, play a crucial role in the process of renal ischemia and reperfusion (I/R) injury. Previous studies have reported the protective effects of dexmedetomidine (DEX) against renal I/R injury, but little is known about the role of DEX on RMECs. This study aimed to investigate whether DEX alleviated renal I/R injury via acting on the RMECs. Mice underwent bilateral renal artery clamping for 45 min followed by reperfusion for 48 h, and the cultured neonatal mice RMECs were subjected to hypoxia for 1 h followed by reoxygenation (H/R) for 24 h. The results suggest that DEX alleviated renal I/R injury in vivo and improved cell viability of RMECs during H/R injury in vitro. Gene sequencing revealed that the PI3K/Akt was the top enriched signaling pathway and the endothelial cells were widely involved in renal I/R injury. DEX activated phosphorylation of PI3K and Akt, increased eNOS expression, and attenuated inflammatory responses. In addition, the results confirmed the distribution of α2 adrenoreceptor (α2 -AR) in RMECs. Furthermore, the protective effects of DEX against renal I/R injury were abolished by α2 -AR antagonist (atipamezole), which was partly reversed by the PI3K agonist (740 Y-P). These findings indicated that DEX protects against renal I/R injury by activating the PI3K/Akt-eNOS pathway and inhibiting inflammation responses via α2 -AR in RMECs.
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Affiliation(s)
- Xisheng Shan
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Anesthesiology, Soochow University, Suzhou, China
| | - Jiaxin Zhang
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiang Wei
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Wenhui Tao
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ke Peng
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Anesthesiology, Soochow University, Suzhou, China
| | - Huayue Liu
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Anesthesiology, Soochow University, Suzhou, China
| | - Yiqing Wang
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Hong Liu
- Department of Anesthesiology and Pain Medicine, University of California Davis Health, Sacramento, California, USA
| | - Xiaowen Meng
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Anesthesiology, Soochow University, Suzhou, China
| | - Fuhai Ji
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Anesthesiology, Soochow University, Suzhou, China
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35
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Huang L, Ye Q, Lan C, Wang X, Zhu Y. AZD6738 Inhibits fibrotic response of conjunctival fibroblasts by regulating checkpoint kinase 1/P53 and PI3K/AKT pathways. Front Pharmacol 2022; 13:990401. [PMID: 36204234 PMCID: PMC9530343 DOI: 10.3389/fphar.2022.990401] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Trabeculectomy can effectively reduce intraocular pressure (IOP) in glaucoma patients, the long-term surgical failure is due to the excessive proliferation and fibrotic response of conjunctival fibroblasts which causes the subconjunctival scar and non-functional filtering bleb. In this study, we demonstrated that AZD6738 (Ceralasertib), a novel potent ataxia telangiectasia and Rad3-related (ATR) kinase inhibitor, can inhibit the fibrotic response of conjunctival fibroblasts for the first time. Our in vitro study demonstrated that AZD6738 inhibited the level and the phosphorylation of checkpoint kinase 1 (CHK1), reduced TGF-β1-induced cell proliferation and migration, and induced apoptosis of human conjunctival fibroblasts (HConFs) in the high-dose group (5 μM). Low-dose AZD6738 (0.1 μM) inhibited the phosphorylation of CHK1 and reduce fibrotic response but did not promote apoptosis of HConFs. Further molecular research indicated that AZD6738 regulates survival and apoptosis of HConFs by balancing the CHK1/P53 and PI3K/AKT pathways, and inhibiting TGF-β1-induced fibrotic response including myofibroblast activation and relative extracellular matrix (ECM) protein synthesis such as fibronectin (FN), collagen Ⅰ (COL1) and collagen Ⅳ (COL4) through a dual pharmacological mechanism. Hence, our results show that AZD6738 inhibits fibrotic responses in cultured HConFs in vitro and may become a potential therapeutic option for anti-subconjunctival scarring after trabeculectomy.
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Affiliation(s)
- Longxiang Huang
- The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Qin Ye
- The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Chunlin Lan
- Fujian Medical University Union Hospital, Fuzhou, China
| | - Xiaohui Wang
- The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- *Correspondence: Yihua Zhu, ; Xiaohui Wang,
| | - Yihua Zhu
- The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- *Correspondence: Yihua Zhu, ; Xiaohui Wang,
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Feng YL, Yang Y, Chen H. Small molecules as a source for acute kidney injury therapy. Pharmacol Ther 2022; 237:108169. [DOI: 10.1016/j.pharmthera.2022.108169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/28/2022] [Accepted: 03/07/2022] [Indexed: 10/18/2022]
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A Chinese Medicine Compound Alleviates Cisplatin-Induced Acute Kidney Injury via Its Antiapoptosis and Anti-Inflammation Effects in Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:7841284. [PMID: 35815260 PMCID: PMC9259212 DOI: 10.1155/2022/7841284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 06/04/2022] [Accepted: 06/09/2022] [Indexed: 11/28/2022]
Abstract
Cisplatin, also known as cis-diamine dichloroplatinum (CDDP), is a widely used chemotherapeutic drug. However, its application is limited by the occurrence of serious nephrotoxicity. Currently, no effective therapy is available for combating CDDP-induced acute kidney injury (AKI). In the present study, we investigated the efficacy of Jianpi Yishen Tang (JPYST), a traditional Chinese medicine (TCM) compound commonly used to treat chronic kidney disease, against CDDP-induced AKI. In the CDDP + JPYST group, male mice were pretreated with JPYST (18.35 g/kg/day) for 5 consecutive days before receiving a single dose of CDDP (20 mg/kg), all mice were sacrificed 72 h after the CDDP injection. Results showed that JPYST suppressed CDDP-induced kidney dysfunction and tubular damage scores in the mice. Mechanistically, JPYST treatment attenuated CDDP-induced renal tubular cell apoptosis in AKI mice, as manifested by a marked decreased in TUNEL-positive cell counts, downregulation of the pro-apoptotic proteins Bax, Bad and caspase 3, and upregulation of the antiapoptotic protein Bcl-2 in kidney tissues. Meanwhile, JPYST decreased the expression of inflammatory cytokines TNF-α, IL-1β, and IL-6 in the serum and renal tissues of mice following CDDP administration. These factors are involved in suppressing the activation of phospho-NF-κB p65 in tubular epithelial cells. Taken together, these findings demonstrated that JPYST exerts renoprotective effects against CDDP-induced AKI through antiapoptosis and anti-inflammation effects, and these are associated with downregulation of NF-κB activation. Therefore, JPYST has potential for development of treatment therapies against CDDP-induced AKI.
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Tao WH, Shan XS, Zhang JX, Liu HY, Wang BY, Wei X, Zhang M, Peng K, Ding J, Xu SX, Li LG, Hu JK, Meng XW, Ji FH. Dexmedetomidine Attenuates Ferroptosis-Mediated Renal Ischemia/Reperfusion Injury and Inflammation by Inhibiting ACSL4 via α2-AR. Front Pharmacol 2022; 13:782466. [PMID: 35873574 PMCID: PMC9307125 DOI: 10.3389/fphar.2022.782466] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 05/23/2022] [Indexed: 12/23/2022] Open
Abstract
Ischemia-reperfusion (I/R) injury is a serious clinical pathology associated with acute kidney injury (AKI). Ferroptosis is non-apoptotic cell death that is known to contribute to renal I/R injury. Dexmedetomidine (Dex) has been shown to exert anti-inflammatory and organ protective effects. This study aimed to investigate the detailed molecular mechanism of Dex protects kidneys against I/R injury through inhibiting ferroptosis. We established the I/R-induced renal injury model in mice, and OGD/R induced HEK293T cells damage in vitro. RNA-seq analysis was performed for identifying the potential therapeutic targets. RNA-seq analysis for differentially expressed genes (DEGs) reported Acyl-CoA synthetase long-chain family member 4 (ACSL4) related to ferroptosis and inflammation in I/R mice renal, which was validated in rodent renal. Liproxstatin-1, the specific small-molecule inhibitor of ferroptosis, significantly attenuated ferroptosis-mediated renal I/R injury with decreased LPO, MDA, and LDH levels, and increased GSH level. Inhibiting the activity of ACSL4 by the Rosiglitazone (ROSI) resulted in the decreased ferroptosis and inflammation, as well as reduced renal tissue damage, with decreasing LPO, MDA and LDH level, increasing GSH level, reducing COX2 and increasing GPx4 protein expression, and suppressing the TNF-α mRNA and IL-6 mRNA levels. Dex as a α2-adrenergic receptor (α2-AR) agonist performed renal protective effects against I/R-induced injury. Our results also revealed that Dex administration mitigated tissue damage, inhibited ferroptosis, and downregulated inflammation response following renal I/R injury, which were associated with the suppression of ACSL4. In addition, ACSL4 overexpression abolishes Dex-mediated protective effects on OGD/R induced ferroptosis and inflammation in HEK293T cells, and promotion of ACSL4 expression by α2-AR inhibitor significantly reversed the effects on the protective role of Dex. This present study indicated that the Dex attenuates ferroptosis-mediated renal I/R injury and inflammation by inhibiting ACSL4 via α2-AR.
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Affiliation(s)
- Wen-hui Tao
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Xi-sheng Shan
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Jia-xin Zhang
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Hua-yue Liu
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Bi-ying Wang
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Xiang Wei
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Mian Zhang
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Ke Peng
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Jun Ding
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Shang-xian Xu
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Lin-gui Li
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Jun-kai Hu
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Xiao-wen Meng
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
- *Correspondence:Xiao-wen Meng, ; Fu-hai Ji,
| | - Fu-hai Ji
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
- *Correspondence:Xiao-wen Meng, ; Fu-hai Ji,
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Liu C, Sun Z, Wang M, Yang Z, Zhang W, Ren Y, Han X, Zhang B, Yao M, Nie S. Mitoquinone mitigates paraquat-induced A549 lung epithelial cell injury by promoting MFN1/MFN2-mediated mitochondrial fusion. J Biochem Mol Toxicol 2022; 36:e23127. [PMID: 35686354 DOI: 10.1002/jbt.23127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 04/16/2022] [Accepted: 05/29/2022] [Indexed: 12/21/2022]
Abstract
Paraquat (PQ) poisoning often leads to severe lung injuries, in which the mitochondria damage plays a critical role. Mitoquinone (MitoQ), a newly designed mitochondria-targeted antioxidant, has been proved for its benefit in mitochondria protection. However, the role of MitoQ in PQ-induced lung injury remains unclear. Thus, this study was performed to investigate the effect of MitoQ on PQ-induced lung injury and its underlying mechanisms. Our work showed that PQ caused the inhibition of A549 lung epithelial cell viability in a dose-dependent manner, while MitoQ remarkably mitigated the PQ-induced cell viability suppression. Besides this, PQ-mediated apoptosis of A549 cells was significantly attenuated by MitoQ, as indicated by the TUNEL assay and mitochondria membrane potential assay. Moreover, the intracellular reactive oxygen species (ROS) production was also dramatically suppressed when cotreated MitoQ with PQ. This could be ascribed to enhanced mitochondrial fusion mediated by Mitofusin 1 (MFN1)/Mitofusin 2 (MFN2), because MitoQ preserved mitochondrial network integrity, as reflected by MitoTracker staining, and MitoQ also increased the expression of MFN1/MFN2 in A549 cells after PQ treatment. Our data suggested MitoQ mitigated PQ-induced lung epithelial cell injury by promoting MFN1/MFN2-mediated mitochondrial fusion, and MitoQ might be a potential candidate drug for the treatment of PQ-induced lung injury.
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Affiliation(s)
- Chao Liu
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
| | - Zhaorui Sun
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
| | - Mengmeng Wang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
| | - Zhizhou Yang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
| | - Wei Zhang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
| | - Yi Ren
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
| | - Xiaoqin Han
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
| | - Bo Zhang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
| | - Mengya Yao
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
| | - Shinan Nie
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China
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Wang L, Liu X, Kang Q, Pan C, Zhang T, Feng C, Chen L, Wei S, Wang J. Nrf2 Overexpression Decreases Vincristine Chemotherapy Sensitivity Through the PI3K-AKT Pathway in Adult B-Cell Acute Lymphoblastic Leukemia. Front Oncol 2022; 12:876556. [PMID: 35646695 PMCID: PMC9134735 DOI: 10.3389/fonc.2022.876556] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/19/2022] [Indexed: 01/08/2023] Open
Abstract
Uncontrolled proliferation is an important cancer cell biomarker, which plays a critical role in carcinogenesis, progression and development of resistance to chemotherapy. An improved understanding of novel genes modulating cancer cell proliferation and mechanism will help develop new therapeutic strategies. The nuclear factor erythroid 2-related factor 2 (Nrf2), a transcription factor, decreases apoptosis when its expression is upregulated. However, the relationship between Nrf2 and Vincristine (VCR) chemotherapy resistance in B-cell acute lymphoblastic leukemia (B-ALL) is not yet established. Our results showed that Nrf2 levels could sufficiently modulate the sensitivity of B-ALL cells to VCRby regulating an apoptotic protein, i.e., the Bcl-2 agonist of cell death (BAD). Chemotherapeutic agents used for the treatment of B-ALL induced Nrf2 overactivation and PI3K-AKT pathway activation in the cells, independent of the resistance to chemotherapy; thus, a potential resistance loop during treatment for B-ALL with a drug combination is established. Therefore, B-ALL patients with a high expression of Nrf2 might mean induction chemotherapy with VCR effective little.
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Affiliation(s)
- Li Wang
- Clinical Medical College, Guizhou Medical University, Guiyang, China
| | - Xin Liu
- Clinical Medical College, Guizhou Medical University, Guiyang, China
| | - Qian Kang
- Department of Hematology, Guizhou Province Institute of Hematology, Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Centre, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Chengyun Pan
- Department of Hematology, Guizhou Province Institute of Hematology, Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Centre, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Tianzhuo Zhang
- Clinical Medical College, Guizhou Medical University, Guiyang, China
| | - Cheng Feng
- Clinical Medical College, Guizhou Medical University, Guiyang, China
| | - Lu Chen
- Clinical Medical College, Guizhou Medical University, Guiyang, China
| | - Sixi Wei
- Center for Clinical Laboratories, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jishi Wang
- Department of Hematology, Guizhou Province Institute of Hematology, Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Centre, Affiliated Hospital of Guizhou Medical University, Guiyang, China.,National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu, China
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41
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Liu Z, Wang W, Li X, Tang S, Meng D, Xia W, Wang H, Wu Y, Zhou X, Zhang J. Capsaicin ameliorates renal fibrosis by inhibiting TGF-β1-Smad2/3 signaling. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 100:154067. [PMID: 35349832 DOI: 10.1016/j.phymed.2022.154067] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 03/14/2022] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND AND PURPOSE Chronic kidney disease (CKD), characterized by renal fibrosis, is a global refractory disease with few effective therapeutic strategies. It has been reported that capsaicin exerts many pharmacological effects including liver and cardiac fibrosis. However, whether capsaicin plays a therapeutic role in renal fibrosis remains unclear. METHODS We investigated antifibrotic effects of capsaicin in two mouse renal fibrosis models as follows: C57BL/6J mice were subjected to unilateral ureteral obstruction (UUO) and fed with an adenine-rich diet. We uncovered and verified the mechanisms of capsaicin in human proximal tubular epithelial cells (HK2). We mainly used histochemistry, immunohistochemistry and immunofluorescence staining, western blot assay, biochemical examination and other tools to examine the effects of capsaicin on renal fibrosis and the underlying mechanisms. RESULTS Capsaicin treatment significantly alleviated fibronectin and collagen depositions in the tubulointerstitium of the injured kidneys from UUO and adenine-fed mice. Meanwhile, capsaicin treatment obviously reduced α-SMA expression. Moreover, capsaicin treatment dramatically protected against the phenotypic alteration of tubular epithelial cells by increasing E-cadherin expression and decreasing vimentin expression during renal fibrosis. Mechanistically, capsaicin treatment effectively suppressed α-SMA and vimentin expressions but promoted E-cadherin expression in HK2 cells mainly through the inhibition of TGF-β1-Smad2/3 signaling. CONCLUSION Capsaicin significantly ameliorated renal fibrosis possibly by retarding the activation of myofibroblasts and protecting against the phenotypic alteration of tubular epithelial cells mainly through the inhibition of TGF-β1-Smad2/3 signaling. Thus, our findings may provide a new insight into the clinical application of capsaicin in renal fibrosis.
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Affiliation(s)
- Zhenyu Liu
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, PR China
| | - Weili Wang
- School of Medicine, Chongqing University, Chongqing 400030, PR China; College of Bioengineering, Chongqing University, Chongqing 400044, PR China
| | - Xueqin Li
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, PR China
| | - Sha Tang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, PR China
| | - Dongwei Meng
- Institute of Immunology, College of Basic Medical Sciences, Third Military Medical University, Chongqing 400038, PR China
| | - Wenli Xia
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, PR China
| | - Hong Wang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, PR China
| | - Yuzhang Wu
- Institute of Immunology, College of Basic Medical Sciences, Third Military Medical University, Chongqing 400038, PR China
| | - Xinyuan Zhou
- Institute of Immunology, College of Basic Medical Sciences, Third Military Medical University, Chongqing 400038, PR China.
| | - Jingbo Zhang
- Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing 400037, PR China.
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42
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Zhang D, Ji P, Sun R, Zhou H, Huang L, Kong L, Li W, Li W. Ginsenoside Rg1 attenuates LPS-induced chronic renal injury by inhibiting NOX4-NLRP3 signaling in mice. Biomed Pharmacother 2022; 150:112936. [PMID: 35421784 DOI: 10.1016/j.biopha.2022.112936] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/27/2022] [Accepted: 04/06/2022] [Indexed: 11/22/2022] Open
Abstract
Chronic renal injury (CRI) is a common pathological damage in chronic renal disease, and the therapeutic options for preventing its progression are limited at present. Ginsenoside Rg1 (Rg1) is reported to have a protective effect on renal injury by improving oxidative stress and inflammation. Lipopolysaccharide (LPS) plays important roles in inducing inflammatory and high-dose LPS is often used to perform acute renal injury. However, little is known about the effect of low-dose LPS on CRI, and the protective effect of Rg1 against chronic LPS-induced CRI. Here, we reported the protective effect and mechanism of Rg1 against LPS-induced CRI in mice. In this study, the results demonstrated that low-dose LPS (0.25 mg/kg) exposure for 14 days significantly induced renal function impairment and renal injury and fibrosis. Meanwhile, LPS exposure significantly increased reactive oxygen species (ROS) generation, NADPH oxidase 4 (NOX4) and NLRP3 inflammasome expression in renal cortex. However, treatment with Rg1, tempol (a superoxide dismutase mimetic), and apocynin (a NOX inhibitor) significantly improved renal function impairment and renal fibrosis, and significantly decreased the levels of TGF-β, IL-1β, KIM-1, β-Gal, and collagen IV in the kidneys. And Rg1 treatment also significantly reduced ROS generation and inhibited the activation of NOX4 and NLRP3 inflammasome. Overall, these results suggest that Rg1 treatment can ameliorate LPS-induced chronic kidney injury and renal fibrosis, the mechanisms may be involved in reducing NOX2-mediated oxidative stress and inhibiting NLRP1 inflammasome.
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Affiliation(s)
- Duoduo Zhang
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Pengmin Ji
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Ran Sun
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Huimin Zhou
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Lei Huang
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Liangliang Kong
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Weiping Li
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China; Anqing Medical and Pharmaceutical College, Anqing 246052, Anhui, China.
| | - Weizu Li
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China.
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Zhang W, Liu C, Wang M, Yang Z, Yang J, Ren Y, Cao L, Han X, Huang L, Sun Z, Nie S. Phosphatidylserine-Specific Phospholipase A1 Alleviates Lipopolysaccharide-Induced Macrophage Inflammation by Inhibiting MAPKs Activation. Biol Pharm Bull 2022; 45:1061-1068. [PMID: 35650027 DOI: 10.1248/bpb.b22-00001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Macrophages are key in innate immune responses and play vital roles in homeostasis and inflammatory diseases. Phosphatidylserine-specific phospholipase A1 (PS-PLA1) is a specific phospholipase which hydrolyzes fatty acid from the sn-1 position of phosphatidylserine (PS) to produce lysophosphatidylserine (lysoPS). Both PS and lysoPS are associated with activation of immune cells including macrophages. However, the effect of PS-PLA1 on macrophage inflammation remains unclear. The purpose of this study is to evaluate the role of PS-PLA1 in lipopolysaccharide (LPS)-induced macrophage inflammation. Alterations of PS-PLA1 expression in LPS-stimulated RAW264.7 macrophages were investigated via Western blot. PS-PLA1 stable knockdown and overexpression RAW264.7 cell lines were generated by infecting cells with appropriate lentiviral vectors, respectively. PS-PLA1 expression was found to be dramatically upregulated in RAW264.7 macrophages after LPS stimulation. PS-PLA1 knockdown promotes while PS-PLA1 overexpression ameliorates the release of TNF-α, IL-1β and nitric oxide from RAW264.7 cells and M1 macrophage polarization. Additionally, PS-PLA1 knockdown facilitates phosphorylation of p38, ERK and JNK, while PS-PLA1 overexpression attenuates their phosphorylation. Moreover, mitogen-activated protein kinase (MAPK) inhibitors blocks the release of TNF-α and IL-1β in PS-PLA1 knockdown RAW264.7 cells after LPS stimulation. These findings suggest PS-PLA1 ameliorates LPS-induced macrophage inflammation by inhibiting MAPKs activation, and PS-PLA1 might be considered as a target for modulating macrophage inflammation.
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Affiliation(s)
- Wei Zhang
- Department of Emergency Medicine, Jinling Clinical Medical College of Nanjing Medical University.,Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
| | - Chao Liu
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
| | - Mengmeng Wang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
| | - Zhizhou Yang
- Department of Emergency Medicine, Jinling Clinical Medical College of Nanjing Medical University.,Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
| | - Jian Yang
- Department of Radiology, Zhongda Hospital, Jiangsu Key Laboratory of Molecular and Functional Imaging, Medical School of Southeast University
| | - Yi Ren
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
| | - Liping Cao
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
| | - Xiaoqin Han
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
| | - Limin Huang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
| | - Zhaorui Sun
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
| | - Shinan Nie
- Department of Emergency Medicine, Jinling Clinical Medical College of Nanjing Medical University.,Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University
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Luo W, Tao Y, Chen S, Luo H, Li X, Qu S, Chen K, Zeng C. Rosmarinic Acid Ameliorates Pulmonary Ischemia/Reperfusion Injury by Activating the PI3K/Akt Signaling Pathway. Front Pharmacol 2022; 13:860944. [PMID: 35645792 PMCID: PMC9132383 DOI: 10.3389/fphar.2022.860944] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/30/2022] [Indexed: 01/01/2023] Open
Abstract
Pulmonary ischemia/reperfusion (IR) injury is the leading cause of acute lung injury, which is mainly attributed to reactive oxygen species (ROS) induced cell injuries and apoptosis. Since rosmarinic acid (RA) has been identified as an antioxidant natural ester, this natural compound might protect against pulmonary IR injury. In this study, the mice were given RA daily (50, 75, or 100 mg/kg) by gavage for 7 days before the pulmonary IR injury. We found that hypoxemia, pulmonary edema, and serum inflammation cytokines were aggravated in pulmonary IR injury. RA pretreatment (75 and 100 mg/kg) effectively reversed these parameters, while 50 mg/kg RA pretreatment was less pronounced. Our data also indicated RA pretreatment mitigated the upregulation of pro-oxidant NADPH oxidases (NOX2 and NOX4) and the downregulation of anti-oxidant superoxide dismutases (SOD1 and SOD2) upon IR injury. In vitro studies showed RA preserved the viability of anoxia/reoxygenation (AR)-treated A549 cells (a human lung epithelial cell line), and the results showed the protective effect of RA started at 5 μM concentration, reached its maximum at 15 μM, and gradually decreased at 20–25 μM. Besides, RA pretreatment (15 μM) greatly reduced the lactate dehydrogenase release levels subjected to AR treatment. Moreover, the results of our research revealed that RA eliminated ROS production and reduced alveolar epithelial cell apoptosis through activating the phosphatidylinositol 3 kinase (PI3K)/protein kinase B (Akt) signaling pathway, which was supported by using wortmannin, because in the presence of wortmannin, the RA-mediated protection was blocked. Meanwhile, wortmannin also reversed the protective effects of RA in mice. Together, our results demonstrate the beneficial role of RA in pulmonary IR injury via PI3K/Akt-mediated anti-oxidation and anti-apoptosis, which could be a promising therapeutic intervention for pulmonary IR injury.
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Affiliation(s)
- Wenbin Luo
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Yu Tao
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Shengnan Chen
- Cardiovascular Research Center of Chongqing College, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Chongqing, China
- Department of Cardiology, Chongqing General Hospital, Chongqing, China
| | - Hao Luo
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Xiaoping Li
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Shuang Qu
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Ken Chen
- Cardiovascular Research Center of Chongqing College, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Chongqing, China
- *Correspondence: Ken Chen, ; Chunyu Zeng,
| | - Chunyu Zeng
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
- Cardiovascular Research Center of Chongqing College, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Chongqing, China
- Department of Cardiology, Chongqing General Hospital, Chongqing, China
- Heart Center of Fujian Province, Union Hospital, Fujian Medical University, Fuzhou, China
- *Correspondence: Ken Chen, ; Chunyu Zeng,
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Analysis of microRNA Expression after Glutamine Intervention in Acute Renal Ischemia-Reperfusion Injury. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:2401152. [PMID: 35035815 PMCID: PMC8754598 DOI: 10.1155/2022/2401152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 12/27/2021] [Indexed: 11/17/2022]
Abstract
Background Ischemia-reperfusion acute kidney injury (I/R AKI) is a severe kidney disease with high mortality and morbidity. This study aimed to explore the protective mechanism of glutamine (GLN) against I/R AKI. Methods The I/R AKI rat model was established, and HE staining of kidney tissue and serum creatinine (SCr) and blood urea nitrogen (BUN) detection were performed. The miRNAs were sequenced by high throughput in rat kidney tissue samples. Differentially expressed miRNAs (DEmiRs) between the I/R group and I/R + GLN group were screened, and enrichment analysis for target genes of DEmiRs was performed. Meanwhile, human HK-2 cells were cultured, and an I/R model was established to verify the expression of DEmiRs. Results Compared with the I/R group, the SCr and BUN levels at each time point were lower in the I/R + GLN group. Vacuolar degeneration of renal tubules in the I/R + GLN group was significantly reduced. In the 104 DEmiRs, we selected miR-132-5p, miR-205, and miR-615 as key miRNAs. KEGG analysis showed that the Notch signaling pathway, PI3K-Akt signaling pathway, and cGMP signaling pathway were mainly related to the GLN against I/R. qRT-PCR verified the downregulation of miR-205 in the I/R group, compared to the sham and I/R + GLN group. The I/R model was established with HK-2 cells, and the expression of miR-132-5p and miR-205 was decreased. Conclusion GLN reduced I/R-induced AKI. There were significant differences between miRNAs expression in I/R after GLN treatment. The process of GLN against I/R-induced AKI may be related to the Notch and PI3K-Akt signaling pathway.
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El-Maadawy WH, Hassan M, Hafiz E, Badawy MH, Eldahshan S, AbuSeada A, El-Shazly MAM, Ghareeb MA. Co-treatment with Esculin and erythropoietin protects against renal ischemia-reperfusion injury via P2X7 receptor inhibition and PI3K/Akt activation. Sci Rep 2022; 12:6239. [PMID: 35422072 PMCID: PMC9010483 DOI: 10.1038/s41598-022-09970-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 03/30/2022] [Indexed: 12/17/2022] Open
Abstract
Renal ischemia/reperfusion (RI/R) is a critical clinical outcome with slightly reported improvement in mortality and morbidity. Effective therapies are still crucially required. Accordingly, the therapeutic effects of esculin (ESC, LCESI-MS/MS-isolated compound from Vachellia farnesiana flowers extract, with reported P2X7 receptor inhibitor activity) alone and in combination with erythropoietin (EPO) were investigated against RI/R injury and the possible underlying mechanisms were delineated. ESC and EPO were administered for 7 days and 30 min prior to RI, respectively. Twenty-four hour following reperfusion, blood and kidney samples were collected. Results revealed that pretreatment with either ESC or EPO reduced serum nephrotoxicity indices, renal oxidative stress, inflammatory, and apoptosis markers. They also ameliorated the renal histopathological injury on both endothelial and tubular epithelial levels. Notably, ESC markedly inhibited P2X7 receptors and NLRP3 inflammasome signaling (downregulated NLRP3 and Caspase-1 gene expressions), whereas EPO significantly upregulated PI3K and Akt gene expressions, also p-PI3K and p-Akt levels in renal tissues. ESC, for the first time, demonstrated effective protection against RI/R-injury and its combination with EPO exerted maximal renoprotection when compared to each monotherapy, thereby representing an effective therapeutic approach via inhibiting oxidative stress, inflammation, renal tubular and endothelial injury, apoptosis, and P2X7 receptors expression, and activating PI3K/Akt pathway.
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Affiliation(s)
- Walaa H El-Maadawy
- Pharmacology Department, Theodor Bilharz Research Institute, Kornaish El Nile, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt.
| | - Marwa Hassan
- Immunology Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Ehab Hafiz
- Electron Microscopy Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Mohamed H Badawy
- Urology Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Samir Eldahshan
- Urology Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - AbdulRahman AbuSeada
- Anesthesia Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Maha A M El-Shazly
- Medicinal Chemistry Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Mosad A Ghareeb
- Medicinal Chemistry Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
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Fractalkine deficiency attenuates LPS-induced acute kidney injury and podocyte apoptosis by targeting the PI3K/Akt signal pathway. Clin Exp Nephrol 2022; 26:741-749. [PMID: 35394554 DOI: 10.1007/s10157-022-02218-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 03/22/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Podocyte injury is a major biomarker of primary glomerular disease, which leads to massive proteinuria and kidney failure. The increased production of the chemokine, fractalkine (FKN, CX3CL1), is a hallmark of multiple inflammatory diseases. However, the underlying mechanism of FKN in podocyte injury remains unknown. METHODS In this study, we performed an LPS infusion model in FKN knockout (FKN-/-, FKN-KO) mice. In cultured podocytes, we used plasmids to knockdown FKN and treated the podocytes with PI3K/Akt inhibitor (LY294002). Haematoxylin and eosin (HE) staining, Western Bolt, Co-immunoprecipitation (Co-IP), Immunofluorescence staining and flow cytometric analysis were employed to establish the role of FKN in podocyte injury. RESULTS LPS stimulation resulted in kidney damage, increased the expression of the Bcl-2 family apoptosis protein, and decreased podocyte marker protein (nephrin, podocin and WT1) abundance compared with the WT mice. LPS-induced FKN-KO mice exhibited reduced lethality and inflammatory cell infiltration, podocyte apoptosis, and PI3K/Akt signal pathway inhibition compared to WT mice. In cultured podocytes, the interaction between FKN and the PI3K/Akt signalling pathway was well confirmed. FKN knockdown reduced podocyte apoptosis by regulating the Bcl-2 family; however, this protective effect was reversed by the co-administration of a PI3K/Akt inhibitor (LY294002). CONCLUSION Overall, these findings reveal a novel mechanistic property of FKN, PI3K/Akt signalling, and podocyte apoptosis.
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Liu JH, Liu DY, Yuan YF, Sun XJ, Shan SM. Comparison of the performance of MS enteroscope series and Japanese double- and single-balloon enteroscopes. World J Gastroenterol 2022; 28:1329-1337. [PMID: 35645541 PMCID: PMC9099188 DOI: 10.3748/wjg.v28.i13.1329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/29/2021] [Accepted: 02/23/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Small intestine disease endangers human health and is not easy to locate and diagnose.
AIM To observe the effect of the MS series of small intestine endoscopes on the gastrointestinal tract, the changes in serum gastrin levels and intestinal tissue, and the time required for the examination.
METHODS In vivo experiments in 20 Living pigs were conducted, Bowel preparation was routinely performed, Intravenous anesthesia with propofol and ketamine was applied, the condition of the small intestine was observed and the detection time of the MS series of small intestine endoscopes were recorded, The changes in intestinal tissue using the MS series of small intestine endoscopes observed and compared before and after the examination, Venous blood (3-5 mL) from pigs was collected before and after the experiment; changes in intestinal tissue after use of the MS series of small intestine endoscopes observed after examination. After completion of each type of small intestine endoscope experiment, the pigs were allowed to rest and the next type of small intestine endoscope experiment was performed after 15 days of normal feeding. The detection time data of the single-balloon small intestine endoscope and double-balloon small intestine endoscope were collected from four hospitals.
RESULTS One case of Ascarislumbricoides, one of suspected Crohn's disease, one small intestinal diverticulum and one anesthesia accident were observed in pigs. The small intestine showed no differences in the MS series of small intestine endoscopes and there were no differences in serum gastrin between the groups (P > 0.05). The time required for inspection was recorded, and the overall detection time for the Japanese small intestine endoscopes was approximately 1.68 ± 0.16 h.
CONCLUSION Intestinal ascariasis is a common disease in pigs. Some pigs have abnormal intestinal variation. After continuous upgrade and improvement, the MS-3 and MS-4 small intestine endoscope appear superior in terms of detection time.
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Affiliation(s)
- Jin-Hua Liu
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
- Department of General Surgery, Affiliated Dalian Municipal Friendship Hospital of Dalian Medical University, Dalian 116001, Liaoning Province, China
| | - Dan-Yang Liu
- Department of Endocrinology, Affiliated Dalian Municipal Friendship Hospital of Dalian Medical University, Dalian 116001, Liaoning Province, China
| | - Yong-Feng Yuan
- College of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China
| | - Xue-Jun Sun
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Shu-Mei Shan
- General Manager Office, Dalian Ming Sheng Technology Development Co., Ltd., Dalian 116001, Liaoning Province, China
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Lin F, Xu L, Yuan R, Han S, Xie J, Jiang K, Li B, Yu W, Rao T, Zhou X, Cheng F. Identification of inflammatory response and alternative splicing in acute kidney injury and experimental verification of the involvement of RNA‑binding protein RBFOX1 in this disease. Int J Mol Med 2022; 49:32. [PMID: 35059728 PMCID: PMC8788925 DOI: 10.3892/ijmm.2022.5087] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 12/22/2021] [Indexed: 12/12/2022] Open
Abstract
An increasing number of inflammatory responses and alternative splicing (AS) have been recently reported to be associated with various kidney diseases. The effect of inflammatory response on acute kidney injury (AKI) has not been fully clarified. In the present study, a mouse model of AKI induced by cisplatin and ischemia-reperfusion (IR) was established and genome-wide profiling analysis and identification of differentially expressed genes (DEGs) in kidney tissue was conducted by Gene Ontology (GO) functional analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis, protein-protein interaction (PPI) network analysis and RT-qPCR. The results revealed that common DEGs in AKI induced by cisplatin and IR were enriched in the inflammatory response pathway, including hub genes CSF-1, CXCL1, CXCL10, IL-1β, IL-34, IL-6 and TLR2. AS in AKI was initially reported. Cisplatin-induced AS was enriched in the phosphorylation pathway, involving regulated AS genes CSNK1A1, PAK2, CRK, ADK and IKBKB. IR-induced AS was enriched in apoptosis and proliferation pathways, including DEGs ZDHHC16, BCL2L1 and FGF1 regulated by AS. The ability of RNA-binding proteins (RBPs) to regulate AS was coordinated with the function of context-dependent genetic mechanisms. A total of 49 common differentially expressed RBP genes were screened. RNA binding fox-1 homolog 1 (RBFOX1) was revealed to be the top downregulated gene. The relative levels of RBFOX1 in the nuclei of mouse renal tubular epithelial cells in mRNA and proteins were downregulated by cisplatin and IR. Moreover, the biological functions of RBFOX1 were investigated in human renal proximal tubular epithelial cells (HK-2 cells). Results of in vitro experiments revealed that exogenous RBFOX1 inhibited inflammation and oxidative stress to reduce hypoxia/reoxygenation-induced apoptosis of HK-2 cells. This phenomenon may be related to the inhibition of NF-κB and the activation of the NRF2/HO-1 signaling pathway. In conclusion, the inflammatory cytokines, AS and RBPs in AKI were analyzed in the present study via whole transcriptome sequencing. It was revealed that the RBP gene RBFOX1 was involved in the pathogenesis of AKI. Thus, the present study provided novel insights into the mechanism of AKI pathogenesis.
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Affiliation(s)
- Fangyou Lin
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Lei Xu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Run Yuan
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Shangting Han
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jinna Xie
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Kun Jiang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Bojun Li
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Weimin Yu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Ting Rao
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiangjun Zhou
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Fan Cheng
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Alamandine alleviates hypertension and renal damage via oxidative-stress attenuation in Dahl rats. Cell Death Dis 2022; 8:22. [PMID: 35022384 PMCID: PMC8755846 DOI: 10.1038/s41420-022-00822-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/09/2021] [Accepted: 01/04/2022] [Indexed: 11/08/2022]
Abstract
Alamandine (Ala) is a novel member of the renin-angiotensin-system (RAS) family. The present study aimed to explore the effects of Ala on hypertension and renal damage of Dahl salt-sensitive (SS) rats high-salt diet-induced, and the mechanisms of Ala on renal-damage alleviation. Dahl rats were fed with high-salt diets to induce hypertension and renal damage in vivo, and HK-2 cells were treated with sodium chloride (NaCl) to induce renal injury in vitro. Ala administration alleviated the high-salt diet-induced hypertension, renal dysfunction, and renal fibrosis and apoptosis in Dahl SS rats. The HK-2 cells' damage, and the increases in the levels of cleaved (c)-caspase3, c-caspase8, and c-poly(ADP-ribose) polymerase (PARP) induced by NaCl were inhibited by Ala. Ala attenuated the NaCl-induced oxidative stress in the kidney and HK-2 cells. DETC, an inhibitor of SOD, reversed the inhibitory effect of Ala on the apoptosis of HK-2 cells induced by NaCl. The NaCl-induced increase in the PKC level was suppressed by Ala in HK-2 cells. Notably, PKC overexpression reversed the moderating effects of Ala on the NaCl-induced apoptosis of HK-2 cells. These results show that Ala alleviates high-salt diet-induced hypertension and renal dysfunction. Ala attenuates the renal damage via inhibiting the PKC/reactive oxygen species (ROS) signaling pathway, thereby suppressing the apoptosis in renal tubular cells.
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