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Lai G, De Grossi F, Catusi I, Pesce E, Manfrini N. Dissecting the Puzzling Roles of FAM46C: A Multifaceted Pan-Cancer Tumour Suppressor with Increasing Clinical Relevance. Cancers (Basel) 2024; 16:1706. [PMID: 38730656 PMCID: PMC11083040 DOI: 10.3390/cancers16091706] [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: 03/22/2024] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
FAM46C is a well-established tumour suppressor with a role that is not completely defined or universally accepted. Although FAM46C expression is down-modulated in several tumours, significant mutations in the FAM46C gene are only found in multiple myeloma (MM). Consequently, its tumour suppressor activity has primarily been studied in the MM context. However, emerging evidence suggests that FAM46C is involved also in other cancer types, namely colorectal, prostate and gastric cancer and squamous cell and hepatocellular carcinoma, where FAM46C expression was found to be significantly reduced in tumoural versus non-tumoural tissues and where FAM46C was shown to possess anti-proliferative properties. Accordingly, FAM46C was recently proposed to function as a pan-cancer prognostic marker, bringing FAM46C under the spotlight and attracting growing interest from the scientific community in the pathways modulated by FAM46C and in its mechanistic activity. Here, we will provide the first comprehensive review regarding FAM46C by covering (1) the intracellular pathways regulated by FAM46C, namely the MAPK/ERK, PI3K/AKT, β-catenin and TGF-β/SMAD pathways; (2) the models regarding its mode of action, specifically the poly(A) polymerase, intracellular trafficking modulator and inhibitor of centriole duplication models, focusing on connections and interdependencies; (3) the regulation of FAM46C expression in different environments by interferons, IL-4, TLR engagement or transcriptional modulators; and, lastly, (4) how FAM46C expression levels associate with increased/decreased tumour cell sensitivity to anticancer agents, such as bortezomib, dexamethasone, lenalidomide, pomalidomide, doxorubicin, melphalan, SK1-I, docetaxel and norcantharidin.
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Affiliation(s)
- Giancarlo Lai
- INGM, Istituto Nazionale Genetica Molecolare Romeo ed Enrica Invernizzi, 20122 Milan, Italy; (G.L.); (F.D.G.); (E.P.)
- Department of Biosciences, University of Milan, 20133 Milan, Italy
| | - Federica De Grossi
- INGM, Istituto Nazionale Genetica Molecolare Romeo ed Enrica Invernizzi, 20122 Milan, Italy; (G.L.); (F.D.G.); (E.P.)
- Department of Biosciences, University of Milan, 20133 Milan, Italy
| | - Ilaria Catusi
- SC Clinical Pathology, SS Medical Genetics Laboratory, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy;
| | - Elisa Pesce
- INGM, Istituto Nazionale Genetica Molecolare Romeo ed Enrica Invernizzi, 20122 Milan, Italy; (G.L.); (F.D.G.); (E.P.)
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Nicola Manfrini
- INGM, Istituto Nazionale Genetica Molecolare Romeo ed Enrica Invernizzi, 20122 Milan, Italy; (G.L.); (F.D.G.); (E.P.)
- Department of Biosciences, University of Milan, 20133 Milan, Italy
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Elahimanesh M, Shokri N, Mahdinia E, Mohammadi P, Parvaz N, Najafi M. Differential gene expression patterns in ST-elevation Myocardial Infarction and Non-ST-elevation Myocardial Infarction. Sci Rep 2024; 14:3424. [PMID: 38341440 PMCID: PMC10858964 DOI: 10.1038/s41598-024-54086-w] [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: 11/01/2023] [Accepted: 02/08/2024] [Indexed: 02/12/2024] Open
Abstract
The ST-elevation Myocardial Infarction (STEMI) and Non-ST-elevation Myocardial Infarction (NSTEMI) might occur because of coronary artery stenosis. The gene biomarkers apply to the clinical diagnosis and therapeutic decisions in Myocardial Infarction. The aim of this study was to introduce, enrich and estimate timely the blood gene profiles based on the high-throughput data for the molecular distinction of STEMI and NSTEMI. The text mining data (50 genes) annotated with DisGeNET data (144 genes) were merged with the GEO gene expression data (5 datasets) using R software. Then, the STEMI and NSTEMI networks were primarily created using the STRING server, and improved using the Cytoscape software. The high-score genes were enriched using the KEGG signaling pathways and Gene Ontology (GO). Furthermore, the genes were categorized to determine the NSTEMI and STEMI gene profiles. The time cut-off points were identified statistically by monitoring the gene profiles up to 30 days after Myocardial Infarction (MI). The gene heatmaps were clearly created for the STEMI (high-fold genes 69, low-fold genes 45) and NSTEMI (high-fold genes 68, low-fold genes 36). The STEMI and NSTEMI networks suggested the high-score gene profiles. Furthermore, the gene enrichment suggested the different biological conditions for STEMI and NSTEMI. The time cut-off points for the NSTEMI (4 genes) and STEMI (13 genes) gene profiles were established up to three days after Myocardial Infarction. The study showed the different pathophysiologic conditions for STEMI and NSTEMI. Furthermore, the high-score gene profiles are suggested to measure up to 3 days after MI to distinguish the STEMI and NSTEMI.
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Affiliation(s)
- Mohammad Elahimanesh
- Clinical Biochemistry Department, Faculty of Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Nafiseh Shokri
- Clinical Biochemistry Department, Faculty of Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Elmira Mahdinia
- Clinical Biochemistry Department, Faculty of Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Payam Mohammadi
- Clinical Biochemistry Department, Faculty of Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Najmeh Parvaz
- Clinical Biochemistry Department, Faculty of Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Najafi
- Clinical Biochemistry Department, Faculty of Medical Sciences, Iran University of Medical Sciences, Tehran, Iran.
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Yang C, Ni B, Li C, Sun W, Wang Z, Wang H, Hou X, Yan S, Wang X, Xu D. circRNA_17725 Promotes Macrophage Polarization towards M2 by Targeting FAM46C to Alleviate Arthritis. Mediators Inflamm 2023; 2023:6818524. [PMID: 37035757 PMCID: PMC10081909 DOI: 10.1155/2023/6818524] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 11/09/2022] [Accepted: 11/24/2022] [Indexed: 04/03/2023] Open
Abstract
Accumulating studies have implicated that circular RNAs (circRNAs) play vital roles in the pathogenesis of rheumatoid arthritis (RA). Dysregulation of macrophage polarization leads to immune homeostatic imbalance in RA. However, the altering effects and mechanisms of circRNAs on macrophages polarization and immune homeostatic balance remain largely unclear. We aimed to investigate the potential role of circRNA_17725 in RA. The high-throughput sequence was performed to identify the dysregulated circRNAs in RA. We confirmed the data by CCK-8, EdU, and Annexin V/PI staining to elucidate the proliferation and apoptosis. The expressions of M1/M2-associated markers were confirmed using real-time PCR and flow cytometry analysis. Luciferase reporter assay and RNA Binding Protein Immunoprecipitation (RIP) were used to demonstrate the underlying mechanism of circRNA_17725. The altering effect of circRNA_17725 on macrophages in vivo was evaluated using collagen-induced arthritis (CIA) mouse model. circRNA_17725 was demonstrated to be downregulated in peripheral blood mononuclear cells and CD14+ monocytes from RA cases in contrast to healthy controls. The negative association between circRNA_17725 and the disease activity indexes (CRP, ESR, and DAS28) was observed, suggesting a vital role of circRNA_17725 in RA disease activity. Besides, after a coexpression analysis based on high-input sequencing and the bioinformatics analysis in MiRanda and TargetScan databases, a circRNA_17725-miR-4668-5p-FAM46C competing endogenous RNA (ceRNA) network was hypothesized. A series of cytology experiments in vitro have implicated that circRNA_17725 could inhibit the proliferation but enhance the apoptosis of macrophages. Decreased expression of TNF-α, IL-1β, and MMP-9 were observed in the supernatant of circRNA_17725-overexpressed Raw264.7 macrophages, implicating the inhibitory effect of circRNA_17725 on macrophage inflammatory mediators. Furthermore, circRNA_17725 could promote macrophage polarization towards M2 by targeting miR-4668-5p/FAM46C as a miRNA sponge. Additionally, circRNA_17725-overexpressed macrophages alleviated arthritis and protected against joint injuries and bone destruction by inducing macrophage polarization towards M2 in collagen-induced arthritis (CIA) mice. This study has suggested that circRNA_17725 regulated macrophage proliferation, apoptosis, inflammation, and polarization by sponging miR-4668-5p and upregulating FAM46C in RA.
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Affiliation(s)
- Chunjuan Yang
- Department of Rheumatology of the First Affiliated Hospital & the First Clinical College, Weifang Medical University, Weifang 261000, China
| | - Biao Ni
- Central Laboratory of the First Affiliated Hospital & the First Clinical College, Weifang Medical University, Weifang 261000, China
| | - Chaoran Li
- Department of Rheumatology of the First Affiliated Hospital & the First Clinical College, Weifang Medical University, Weifang 261000, China
| | - Wenchang Sun
- Central Laboratory of the First Affiliated Hospital & the First Clinical College, Weifang Medical University, Weifang 261000, China
| | - Zhangxue Wang
- Department of Rheumatology of the First Affiliated Hospital & the First Clinical College, Weifang Medical University, Weifang 261000, China
| | - Hui Wang
- Central Laboratory of the First Affiliated Hospital & the First Clinical College, Weifang Medical University, Weifang 261000, China
| | - Xinyue Hou
- Central Laboratory of the First Affiliated Hospital & the First Clinical College, Weifang Medical University, Weifang 261000, China
| | - Shushan Yan
- Department of Gastrointestinal and Anal Diseases Surgery of the Affiliated Hospital, Weifang Medical University, Weifang 261000, China
| | - Xiaodong Wang
- Department of Rheumatology of the Affiliated Hospital, Weifang Medical University, Weifang 261000, China
| | - Donghua Xu
- Department of Rheumatology of the First Affiliated Hospital & the First Clinical College, Weifang Medical University, Weifang 261000, China
- Central Laboratory of the First Affiliated Hospital & the First Clinical College, Weifang Medical University, Weifang 261000, China
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Yu Y, Hu LL, Liu L, Yu LL, Li JP, Rao JA, Zhu LJ, Bao HH, Cheng XS. Hsp22 ameliorates lipopolysaccharide-induced myocardial injury by inhibiting inflammation, oxidative stress, and apoptosis. Bioengineered 2021; 12:12544-12554. [PMID: 34839787 PMCID: PMC8810130 DOI: 10.1080/21655979.2021.2010315] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 01/02/2023] Open
Abstract
Sepsis-induced myocardial dysfunction (SIMD) is ubiquitous in septic shock patients and is associated with high morbidity and mortality rates. Heat shock protein 22 (Hsp22), which belongs to the small HSP family of proteins, is involved in several biological functions. However, the function of Hsp22 in lipopolysaccharide (LPS)-induced myocardial injury is not yet established. This study was aimed at investigating the underlying mechanistic aspects of Hsp22 in myocardial injury induced by LPS. In this study, following the random assignment of male C57BL/6 mice into control, LPS-treated, and LPS + Hsp22 treated groups, relevant echocardiograms and staining were performed to scrutinize the cardiac pathology. Plausible mechanisms were proposed based on the findings of the enzyme-linked immunosorbent assay and Western blotting assay. A protective role of Hsp22 against LPS-induced myocardial injury emerged, as evidenced from decreased levels of creatinine kinase-MB (CK-MB), lactate dehydrogenase (LDH), and enhanced cardiac function. The post-LPS administration-caused spike in inflammatory cytokines (IL-1β, IL-6, TNF-α and NLRP3) was attenuated by the Hsp22 pre-treatment. In addition, superoxide dismutase (SOD) activity and B-cell lymphoma-2 (Bcl2) levels were augmented by Hsp22 treatment resulting in lowering of LPS-induced oxidative stress and cardiomyocyte apoptosis. In summary, the suppression of LPS-induced myocardial injury by Hsp22 overexpression via targeting of inflammation, oxidative stress, and apoptosis in cardiomyocytes paves the way for this protein to be employed in the therapy of SIMD.
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Affiliation(s)
- Yun Yu
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Long-Long Hu
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Liang Liu
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ling-Ling Yu
- Department of Rehabilitation, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jun-Pei Li
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing-an Rao
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ling-Juan Zhu
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hui-Hui Bao
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiao-Shu Cheng
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
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Chen W, Gao G, Yan M, Yu M, Shi K, Yang P. Long noncoding RNA MAPKAPK5-AS1 promoted lipopolysaccharide-induced inflammatory damage in the myocardium by sponging microRNA-124-3p/E2F3. Mol Med 2021; 27:131. [PMID: 34666672 PMCID: PMC8524853 DOI: 10.1186/s10020-021-00385-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 09/22/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Myocardial dysfunction caused by sepsis (SIMD) leads to high mortality in critically ill patients. We investigated the function and mechanism of long non-coding RNA MAPKAPK5-AS1 (lncRNA MAPKAPK-AS1) on lipopolysaccharide (LPS)-induced inflammation response in vivo and in vitro. METHOD Male SD rats were utilized for in vivo experiments. Rat cardiomyocytes (H9C2) were employed for in vitro experiments. Western blotting was employed to measure protein expression, and RT-PCR was performed to measure mRNA expression of inflammation factors. TUNEL and flow cytometry were carried out to evulate cell apoptosis. RESULT The results showed that the expression of MAPKAPK5-AS1 was increased, while the expression of miR-124-3p was decreased in the inflammatory damage induced by LPS in vivo and in vitro. Knockdown of MAPKAPK5-AS1 reduced LPS-induced cell apoptosis and inflammation response, while overexpression of miR-124-3p weakened the effects of MAPKAPK5-AS1 knockdown on LPS-induced cell apoptosis and inflammation response. Moreover, miR-124-3p was identified as a downstream miRNA of MAPKAPK5-AS1, and E2F3 was a target of miR-214-3p. MAPKAPK5-AS1 knockdown increased the expression of miR-124-3p, while miR-124-3p overexpression reduced the expression of MAPKAPK5-AS1. In addition, miR-124-3p was found to downregulate E2F3 expression in H9C2 cells. CONCLUSION MAPKAPK5-AS1/miR-124-3p/E2F3 axis regulates LPS-related H9C2 cell apoptosis and inflammatory response.
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Affiliation(s)
- Weiwei Chen
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun City, 130033, Jilin Province, People's Republic of China
- Jilin Provincial Key Laboratory for Genetic Diagnosis of Cardiovascular Disease, Changchun City, 130033, Jilin Province, People's Republic of China
| | - Guangyuan Gao
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun City, 130033, Jilin Province, People's Republic of China
- Jilin Provincial Key Laboratory for Genetic Diagnosis of Cardiovascular Disease, Changchun City, 130033, Jilin Province, People's Republic of China
| | - Mengjie Yan
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun City, 130033, Jilin Province, People's Republic of China
- Jilin Provincial Key Laboratory for Genetic Diagnosis of Cardiovascular Disease, Changchun City, 130033, Jilin Province, People's Republic of China
| | - Ming Yu
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun City, 130033, Jilin Province, People's Republic of China
- Jilin Provincial Key Laboratory for Genetic Diagnosis of Cardiovascular Disease, Changchun City, 130033, Jilin Province, People's Republic of China
| | - Kaiyao Shi
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun City, 130033, Jilin Province, People's Republic of China
- Jilin Provincial Key Laboratory for Genetic Diagnosis of Cardiovascular Disease, Changchun City, 130033, Jilin Province, People's Republic of China
| | - Ping Yang
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun City, 130033, Jilin Province, People's Republic of China.
- Jilin Provincial Key Laboratory for Genetic Diagnosis of Cardiovascular Disease, Changchun City, 130033, Jilin Province, People's Republic of China.
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6
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Long non-coding RNA DLX6-AS1 accelerates lipopolysaccharides-induced human AC16 cardiomyocytes apoptosis by regulating miR-497/CaSR axis. Mol Cell Toxicol 2021. [DOI: 10.1007/s13273-021-00147-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chen D, Hou Y, Cai X. MiR-210-3p Enhances Cardiomyocyte Apoptosis and Mitochondrial Dysfunction by Targeting the NDUFA4 Gene in Sepsis-Induced Myocardial Dysfunction. Int Heart J 2021; 62:636-646. [PMID: 33994501 DOI: 10.1536/ihj.20-512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Sepsis-induced myocardial dysfunction (SIMD) is a common complication with high incidence rates in sepsis patients. This study aimed to investigate the roles of miR-210-3p in regulating cardiomyocyte apoptosis and mitochondrial dysfunction associated with SIMD pathogenesis.A rat sepsis model was established by cecal ligation and puncture. Serum inflammatory factors, myocardial tissue apoptosis, and expression of miR-210-3p were evaluated. In vitro, miR-210-3p expression in H9C2 cells was altered by transfection with its mimics or inhibitors. H9C2 viability was assessed via CCK-8 assay, and reactive oxygen species (ROS) production and apoptosis were detected through flow cytometry. The targeting regulatory relations between miR-210-3p and NADH dehydrogenase (ubiquinone) 1 alpha subcomplex 4 (NDUFA4) were validated by dual luciferase reporter assay.The rat sepsis model showed increased serum TNF-α and IL-6 levels, significant myocardial tissue injuries and apoptosis with decreased Bcl-2 and increased Caspase-1 protein levels. In vitro, septic rat serum suppressed viability, promoted ROS production and apoptosis, impaired COX IV activities and increased cytochrome release in H9C2 cells. The expression of miR-210-3p was greatly increased in myocardial tissues of septic rats and septic serum-treated H9C2 cells. miR-210-3p directly binds to the 3' UTR of the NDUFA4 gene. Septic rat serum suppressed NDUFA4 and Iron-Sulfur Cluster Assembly Protein U gene expressions in H9C2 cells. The above cellular and molecular alterations in H9C2 cells induced by septic serum were enhanced by miR-210-3p mimics and abrogated by miR-210-3p inhibitors.miR-210-3p promoted SIMD pathogenesis by targeting NDUFA4 to enhance cardiomyocyte apoptosis and impair mitochondrial function.
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Affiliation(s)
- Dandan Chen
- Department of Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University
| | - Yu Hou
- Department of Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University
| | - Xingjun Cai
- Department of Pulmonary and Critical Care Medicine, Hainan General Hospital
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Liu L, Yan M, Yang R, Qin X, Chen L, Li L, Si J, Li X, Ma K. Adiponectin Attenuates Lipopolysaccharide-induced Apoptosis by Regulating the Cx43/PI3K/AKT Pathway. Front Pharmacol 2021; 12:644225. [PMID: 34084134 PMCID: PMC8167433 DOI: 10.3389/fphar.2021.644225] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 03/31/2021] [Indexed: 12/30/2022] Open
Abstract
Cardiomyocyte apoptosis is a crucial factor leading to myocardial dysfunction. Adiponectin (APN) has a cardiomyocyte-protective impact. Studies have shown that the connexin43 (Cx43) and phosphatidylinositol-3-kinase (PI3K)/protein kinase B (AKT) signaling pathways play an important role in the heart, but whether APN plays a protective role by regulating these pathways is unclear. Our study aimed to confirm whether APN protects against lipopolysaccharide (LPS)-induced cardiomyocyte apoptosis and to explore whether it plays an important role through regulating the Cx43 and PI3K/AKT signaling pathways. In addition, our research aimed to explore the relationship between the Cx43 and PI3K/AKT signaling pathways. In vitro experiments: Before H9c2 cells were treated with LPS for 24 h, they were pre-treated with APN for 2 h. The cytotoxic effect of APN on H9c2 cells was evaluated by a CCK-8 assay. The protein levels of Bax, Bcl2, cleaved caspase-3, cleaved caspase-9, Cx43, PI3K, p-PI3K, AKT and p-AKT were evaluated by Western blot analysis, and the apoptosis rate was evaluated by flow cytometry. APN attenuated the cytotoxicity induced by LPS. LPS upregulated Bax, cleaved caspase-3 and cleaved caspase-9 and downregulated Bcl2 in H9c2 cells; however, these effects were attenuated by APN. In addition, LPS upregulated Cx43 expression, and APN downregulated Cx43 expression and activated the PI3K/AKT signaling pathway. LPS induced apoptosis and inhibited PI3K/AKT signaling pathway in H9c2 cells, and these effects were attenuated by Gap26 (a Cx43 inhibitor). Moreover, the preservation of APN expression was reversed by LY294002 (a PI3K/AKT signaling pathway inhibitor). In vivo experiments: In C57BL/6J mice, a sepsis model was established by intraperitoneal injection of LPS, and APN was injected into enterocoelia. The protein levels of Bax, Bcl2, cleaved caspase-3, and Cx43 were evaluated by Western blot analysis, and immunohistochemistry was used to detect Cx43 expression and localization in myocardial tissue. LPS upregulated Bax and cleaved caspase-3 and downregulated Bcl2 in sepsis; however, these effects were attenuated by APN. In addition, the expression of Cx43 was upregulated in septic myocardial tissue, and APN downregulated Cx43 expression in septic myocardial tissue. In conclusion, both in vitro and in vivo, the data demonstrated that APN can protect against LPS-induced apoptosis during sepsis by modifying the Cx43 and PI3K/AKT signaling pathways.
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Affiliation(s)
- Luqian Liu
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.,NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China.,Department of Pathophysiology, Shihezi University School of Medicine, Shihezi, China
| | - Meijuan Yan
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.,NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China.,Department of Pathophysiology, Shihezi University School of Medicine, Shihezi, China
| | - Rui Yang
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.,NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China.,Department of Physiology, Shihezi University School of Medicine, Shihezi, China
| | - Xuqing Qin
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.,NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China.,Department of Physiology, Shihezi University School of Medicine, Shihezi, China
| | - Ling Chen
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.,NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China
| | - Li Li
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.,NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China
| | - Junqiang Si
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.,NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China.,Department of Physiology, Shihezi University School of Medicine, Shihezi, China
| | - Xinzhi Li
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.,NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China.,Department of Pathophysiology, Shihezi University School of Medicine, Shihezi, China
| | - Ketao Ma
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.,NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China.,Department of Physiology, Shihezi University School of Medicine, Shihezi, China
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Wang H, Li X, Dong G, Yan F, Zhang J, Shi H, Ning Z, Gao M, Cheng D, Ma Q, Wang C, Zhao M, Dai J, Li C, Li Z, Zhang H, Xiong H. Toll-like Receptor 4 Inhibitor TAK-242 Improves Fulminant Hepatitis by Regulating Accumulation of Myeloid-Derived Suppressor Cell. Inflammation 2020; 44:671-681. [PMID: 33083887 DOI: 10.1007/s10753-020-01366-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/16/2020] [Accepted: 10/13/2020] [Indexed: 12/11/2022]
Abstract
Fulminant hepatitis (FH) is an acute clinical disease with a poor prognosis and high mortality rate. The purpose of this study was to determine the protective effect of the Toll-like receptor 4 (TLR4) inhibitor TAK-242 on lipopolysaccharide (LPS)/D-galactosamine (D-GalN)-induced explosive hepatitis and explore in vivo and in vitro mechanisms. Mice were pretreated with TAK-242 for 3 h prior to LPS (10 μg/kg)/D-GalN (250 mg/kg) administration. Compared to the LPS/D-GalN group, the TAK-242 pretreatment group showed significantly prolonged survival, reduced serum alanine aminotransferase and aspartate aminotransferase levels, relieved oxidative stress, and reduced inflammatory interleukin (IL)-6, IL-12, and tumor necrosis factor-α levels. In addition, TAK-242 increased the accumulation of myeloid-derived suppressor cells (MDSCs). Next, mice were treated with an anti-Gr-1 antibody to deplete MDSCs, and adoptive transfer experiments were performed. We found that TAK-242 protected against FH by regulating MDSCs. In the in vitro studies, TAK-242 regulated the accumulation of MDSCs and promoted the release of immunosuppressive inflammatory cytokines. In addition, TAK-242 inhibited protein expression of nuclear factor-κB and mitogen-activated protein kinases. In summary, TAK-242 had a hepatoprotective effect against LPS/D-GalN-induced explosive hepatitis in mice. Its protective effect may be involved in suppressing inflammation, reducing oxidative stress, and increasing the proportion of MDSCs.
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Affiliation(s)
- Haiyan Wang
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xuehui Li
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guanjun Dong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Fenglian Yan
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Junfeng Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Hui Shi
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Zhaochen Ning
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Min Gao
- Clinical Laboratory, Jining First People's Hospital, Shandong Province, Jining, 272011, China
| | - Dalei Cheng
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qun Ma
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Changying Wang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Mingsheng Zhao
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Jun Dai
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Chunxia Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Zhihua Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Hui Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China.
| | - Huabao Xiong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China.
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10
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Hu H, Fu Y, Li M, Xia H, Liu Y, Sun X, Hu Y, Song F, Cheng X, Li P, Wu Y. Interleukin-35 pretreatment attenuates lipopolysaccharide-induced heart injury by inhibition of inflammation, apoptosis and fibrotic reactions. Int Immunopharmacol 2020; 86:106725. [PMID: 32679538 DOI: 10.1016/j.intimp.2020.106725] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/07/2020] [Accepted: 06/17/2020] [Indexed: 12/14/2022]
Abstract
Previous studies have demonstrated that targeting inflammation is a promising strategy for treating lipopolysaccharide (LPS)-induced sepsis and related heart injury. Interleukin-35 (IL-35), which consists of two subunits, Epstein-Barr virus-induced gene 3 (EBI3) and p35, is an immunosuppressive cytokine of the IL-12 family and exhibits strong anti-inflammatory activity. However, the role of IL-35 in LPS-induced heart injury reains obscure. In this study, we explored the role of IL-35 in heart injury induced by LPS and its potential mechanisms. Mice were treated with a plasmid encoding IL-35 (pIL-35) and then injected intraperitoneally (ip) with LPS (10 mg/kg). Cardiac function was assessed by echocardiography 12 h later. LPS apparently decreased the expression of EBI3 and p35 and caused cardiac dysfunction and pathological changes, which were significantly improved by pIL-35 pretreatment. Moreover, pIL-35 pretreatment significantly decreased the levels of cardiac proinflammatory cytokines including TNF-α, IL-6, and IL-1β, and the NLRP3 inflammasome. Furthermore, decreased number of apoptotic myocardial cells, increased BCL-2 levels and decreased BAX levels inhibited apoptosis, and LPS-induced upregulation of the expression of cardiac pro-fibrotic genes (MMP2 and MMP9) and fibrotic factor (Collagen type I) was inhibited. Further investigation indicated that pIL-35 pretreatment might suppressed the activation of the cardiac NF-κBp65 and TGF-β1/Smad2/3 signaling pathways in LPS-treated mice. Similar cardioprotective effects of IL-35 pretreatment were observed in mouse myocardial fibroblasts challenged with LPS in vitro. In summary, IL-35 pretreatment can attenuate cardiac inflammation, apoptosis, and fibrotic reactions induced by LPS, implicating IL-35 as a promising therapeutic target in sepsis-related cardiac injury.
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Affiliation(s)
- Huan Hu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Yang Fu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Meng Li
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Huasong Xia
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Yue Liu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Xiaopei Sun
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Yang Hu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Fulin Song
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Xiaoshu Cheng
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Ping Li
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Yanqing Wu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China.
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