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Gao FF, Chen DQ, Jiang YT, Han CF, Lin BY, Yang Z, Quan JH, Xiong YH, Chen XT. Functional roles of circular RNAs in lung injury. Front Pharmacol 2024; 15:1354806. [PMID: 38601461 PMCID: PMC11004487 DOI: 10.3389/fphar.2024.1354806] [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: 12/13/2023] [Accepted: 01/16/2024] [Indexed: 04/12/2024] Open
Abstract
Lung injury leads to respiratory dysfunction, low quality of life, and even life-threatening conditions. Circular RNAs (circRNAs) are endogenous RNAs produced by selective RNA splicing. Studies have reported their involvement in the progression of lung injury. Understanding the roles of circRNAs in lung injury may aid in elucidating the underlying mechanisms and provide new therapeutic targets. Thus, in this review, we aimed to summarize and discuss the characteristics and biological functions of circRNAs, and their roles in lung injury from existing research, to provide a theoretical basis for the use of circRNAs as a diagnostic and therapeutic target for lung injury.
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Affiliation(s)
- Fei-Fei Gao
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Dian-Qing Chen
- Department of Hand and Foot Surgery, Armed Police Corps Hospital of Hebei, Shijiazhuang, Hebei, China
| | - Yue-Tong Jiang
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Cui-Fei Han
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Bi-Yun Lin
- Biotissue Repository, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Zhan Yang
- Biotissue Repository, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Juan-Hua Quan
- Laboratory of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Ying-Huan Xiong
- Biotissue Repository, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Xin-Tian Chen
- Laboratory of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
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Li YM, He HW, Zhang N. Targeting Protein Phosphatases for the Treatment of Chronic Liver Disease. Curr Drug Targets 2024; 25:171-189. [PMID: 38213163 DOI: 10.2174/0113894501278886231221092522] [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: 10/12/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 01/13/2024]
Abstract
There exists a huge number of patients suffering from chronic liver disease worldwide. As a disease with high incidence and mortality worldwide, strengthening the research on the pathogenesis of chronic liver disease and the development of novel drugs is an important issue related to the health of all human beings. Phosphorylation modification of proteins plays a crucial role in cellular signal transduction, and phosphatases are involved in the development of liver diseases. Therefore, this article summarized the important role of protein phosphatases in chronic liver disease with the aim of facilitating the development of drugs targeting protein phosphatases for the treatment of chronic liver disease.
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Affiliation(s)
- Yi-Ming Li
- NHC Key Laboratory of Biotechnology for Microbial Drugs, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Hong-Wei He
- NHC Key Laboratory of Biotechnology for Microbial Drugs, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Na Zhang
- NHC Key Laboratory of Biotechnology for Microbial Drugs, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
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Li G, Xu X, Yang L, Cai Y, Sun Y, Guo J, Lin Y, Hu Y, Chen M, Li H, Wu S. Exploring the association between circRNA expression and pediatric obesity based on a case-control study and related bioinformatics analysis. BMC Pediatr 2023; 23:561. [PMID: 37957626 PMCID: PMC10642011 DOI: 10.1186/s12887-023-04261-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 08/21/2023] [Indexed: 11/15/2023] Open
Abstract
OBJECTIVE Our present study utilized case-control research to explore the relationship between specific circRNAs and pediatric obesity through a literature review and bioinformatics and to predict their possible biological functions, providing ideas for epigenetic mechanism studies of pediatric obesity. METHODS CircRNAs related to pediatric obesity were preliminarily screened by a literature review and qRT-PCR. CircRNA expression in children with obesity (n = 75) and control individuals (n = 75) was confirmed with qRT-PCR in a case-control study. This was followed by bioinformatics analyses, such as GO analysis, KEGG pathway analysis, and ceRNA network construction. Multivariate logistic regression was utilized to analyze the effects of circRNAs on obesity. A receiver operating characteristic (ROC) curve was also drawn to explore the clinical application value of circRNAs in pediatric obesity. RESULTS Has_circ_0046367 and hsa_circ_0000284 were separately validated to be statistically downregulated and upregulated, respectively, in the peripheral blood mononuclear cells of children with obesity and revealed as independent indicators of increased CHD risk [hsa_circ_0046367 (OR = 0.681, 95% CI: 0.480 ~ 0.967) and hsa_circ_0000284 (OR = 1.218, 95% CI: 1.041 ~ 1.424)]. The area under the ROC curve in the combined analysis of hsa_circ_0046367 and hsa_circ_0000284 was 0.706 (95% CI: 0.623 ~ 0.789). Enrichment analyses revealed that these circRNAs were actively involved in neural plasticity mechanisms, cell secretion and signal regulation. CONCLUSION The present research revealed that low expression of hsa_circ_0046367 and high expression of hsa_circ_0000284 are risk factors for pediatric obesity and that neural plasticity mechanisms are closely related to obesity.
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Affiliation(s)
- Guobo Li
- Department of Child Healthcare Centre, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Maternity and Child Health Hospital, Fujian Medical University, Fuzhou, 350001, China
| | - Xingyan Xu
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Minhou County, Fuzhou, 350122, China
| | - Le Yang
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Minhou County, Fuzhou, 350122, China
| | - Yingying Cai
- Department of Developmental and Behavioral Pediatrics, Fujian Children's Hospital, Fujian, 350014, China
| | - Yi Sun
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Minhou County, Fuzhou, 350122, China
| | - Jianhui Guo
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Minhou County, Fuzhou, 350122, China
| | - Yawen Lin
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Minhou County, Fuzhou, 350122, China
| | - Yuduan Hu
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Minhou County, Fuzhou, 350122, China
| | - Mingjun Chen
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Minhou County, Fuzhou, 350122, China
| | - Huangyuan Li
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Minhou County, Fuzhou, 350122, China.
| | - Siying Wu
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Minhou County, Fuzhou, 350122, China.
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Novi S, Vestuto V, Campiglia P, Tecce N, Bertamino A, Tecce MF. Anti-Angiogenic Effects of Natural Compounds in Diet-Associated Hepatic Inflammation. Nutrients 2023; 15:2748. [PMID: 37375652 DOI: 10.3390/nu15122748] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Alcoholic liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD) are the most common causes of chronic liver disease and are increasingly emerging as a global health problem. Such disorders can lead to liver damage, resulting in the release of pro-inflammatory cytokines and the activation of infiltrating immune cells. These are some of the common features of ALD progression in ASH (alcoholic steatohepatitis) and NAFLD to NASH (non-alcoholic steatohepatitis). Hepatic steatosis, followed by fibrosis, lead to a continuous progression accompanied by angiogenesis. This process creates hypoxia, which activates vascular factors, initiating pathological angiogenesis and further fibrosis. This forms a vicious cycle of ongoing damage and progression. This condition further exacerbates liver injury and may contribute to the development of comorbidities, such as metabolic syndrome as well as hepatocellular carcinoma. Increasing evidence suggests that anti-angiogenic therapy may have beneficial effects on these hepatic disorders and their exacerbation. Therefore, there is a great interest to deepen the knowledge of the molecular mechanisms of natural anti-angiogenic products that could both prevent and control liver diseases. In this review, we focus on the role of major natural anti-angiogenic compounds against steatohepatitis and determine their potential therapeutic benefits in the treatment of liver inflammation caused by an imbalanced diet.
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Affiliation(s)
- Sara Novi
- Department of Pharmacy, University of Salerno, Via G. Paolo II, 84084 Fisciano, Italy
| | - Vincenzo Vestuto
- Department of Pharmacy, University of Salerno, Via G. Paolo II, 84084 Fisciano, Italy
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, Via G. Paolo II, 84084 Fisciano, Italy
| | - Nicola Tecce
- Unit of Endocrinology, Department of Clinical Medicine and Surgery, Medical School of Naples, Federico II University, Via Sergio Pansini 5, 80131 Napoli, Italy
| | - Alessia Bertamino
- Department of Pharmacy, University of Salerno, Via G. Paolo II, 84084 Fisciano, Italy
| | - Mario Felice Tecce
- Department of Pharmacy, University of Salerno, Via G. Paolo II, 84084 Fisciano, Italy
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Monkfish ( Lophius litulon) Peptides Ameliorate High-Fat-Diet-Induced Nephrotoxicity by Reducing Oxidative Stress and Inflammation via Regulation of Intestinal Flora. Molecules 2022; 28:molecules28010245. [PMID: 36615439 PMCID: PMC9822466 DOI: 10.3390/molecules28010245] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/15/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Renal damage and intestinal flora imbalance due to lipotoxicity are particularly significant in terms of oxidative stress and inflammation, which can be alleviated with bioactive peptides. The monkfish (Lophius litulon) is rich in proteins, which can be used as a source of quality bioactive peptides. This study aimed to examine the protective effect of monkfish peptides on renal injury and their potential role in regulating gut microbiota. METHODS Monkfish meat was hydrolyzed using neutral protease and filtered, and the component with the highest elimination rate of 2,2-diphenyl-1-picrylhydrazyl was named lophius litulon peptides (LPs). Lipid nephrotoxicity was induced via high-fat diet (HFD) feeding for 8 weeks and then treated with LPs. Oxidative stress, inflammatory factors, and intestinal flora were evaluated. RESULTS LP (200 mg/kg) therapy reduced serum creatinine, uric acid, and blood urea nitrogen levels by 49.5%, 31.6%, and 31.6%, respectively. Renal vesicles and tubules were considerably improved with this treatment. Moreover, the activities of superoxide dismutase, glutathione peroxidase, and total antioxidant capacity increased significantly by 198.7%, 167.9%, 61.5%, and 89.4%, respectively. LPs attenuated the upregulation of HFD-induced Toll-like receptor 4 and phospho-nuclear factor-kappa B and increased the protein levels of heme oxygenase 1, nicotinamide quinone oxidoreductase 1, and nuclear factor erythroid 2-related factor 2. The dysbiosis of intestinal microbiota improved after LP treatment. CONCLUSIONS LPs significantly improve antioxidant activity, reduce inflammatory cytokine levels, and regulate intestinal dysbiosis. Thus, LPs are potential compounds that can alleviate HFD-induced renal lipotoxicity.
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Lan T, Jiang S, Zhang J, Weng Q, Yu Y, Li H, Tian S, Ding X, Hu S, Yang Y, Wang W, Wang L, Luo D, Xiao X, Piao S, Zhu Q, Rong X, Guo J. Breviscapine alleviates NASH by inhibiting TGF-β-activated kinase 1-dependent signaling. Hepatology 2022; 76:155-171. [PMID: 34717002 PMCID: PMC9299589 DOI: 10.1002/hep.32221] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 10/01/2021] [Accepted: 10/13/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS NAFLD is a key component of metabolic syndrome, ranging from nonalcoholic fatty liver to NASH, and is now becoming the leading cause of cirrhosis and HCC worldwide. However, due to the complex and unclear pathophysiological mechanism, there are no specific approved agents for treating NASH. Breviscapine, a natural flavonoid prescription drug isolated from the traditional Chinese herb Erigeron breviscapus, exhibits a wide range of pharmacological properties, including effects on metabolism. However, the anti-NASH efficacy and mechanisms of breviscapine have not yet been characterized. APPROACH AND RESULTS We evaluated the effects of breviscapine on the development of hepatic steatosis, inflammation, and fibrosis in vivo and in vitro under metabolic stress. Breviscapine treatment significantly reduced lipid accumulation, inflammatory cell infiltration, liver injury, and fibrosis in mice fed a high-fat diet, a high-fat/high-cholesterol diet, or a methionine- and choline-deficient diet. In addition, breviscapine attenuated lipid accumulation, inflammation, and lipotoxicity in hepatocytes undergoing metabolic stress. RNA-sequencing and multiomics analyses further indicated that the key mechanism linking the anti-NASH effects of breviscapine was inhibition of TGF-β-activated kinase 1 (TAK1) phosphorylation and the subsequent mitogen-activated protein kinase signaling cascade. Treatment with the TAK1 inhibitor 5Z-7-oxozeaenol abrogated breviscapine-mediated hepatoprotection under metabolic stress. Molecular docking illustrated that breviscapine directly bound to TAK1. CONCLUSION Breviscapine prevents metabolic stress-induced NASH progression through direct inhibition of TAK1 signaling. Breviscapine might be a therapeutic candidate for the treatment of NASH.
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Affiliation(s)
- Tian Lan
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Shuo Jiang
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Jing Zhang
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Qiqing Weng
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Yang Yu
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Haonan Li
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Song Tian
- Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Xin Ding
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Sha Hu
- Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Yiqi Yang
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Weixuan Wang
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Lexun Wang
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Duosheng Luo
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Xue Xiao
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Shenghua Piao
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Qing Zhu
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Xianglu Rong
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
| | - Jiao Guo
- Institute of Chinese MedicineGuangdong Pharmaceutical UniversityGuangzhouChina,Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineGuangzhouChina,Key Laboratory of Glucolipid Metabolic DisorderMinistry of EducationGuangzhouChina,Guangdong TCM Key Laboratory for Metabolic DiseasesGuangzhouChina
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Qian Q, Li Y, Fu J, Leng D, Dong Z, Shi J, Shi H, Cao D, Cheng X, Hu Y, Luo Q, Hu M, Ran Y, Tang H, Liu H, Liu J. Switch-associated protein 70 protects against nonalcoholic fatty liver disease through suppression of TAK1. Hepatology 2022; 75:1507-1522. [PMID: 34689362 PMCID: PMC9321549 DOI: 10.1002/hep.32213] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/22/2021] [Accepted: 09/29/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND AIMS NAFLD is a progressive disease without known effective drug treatments. Switch-associated protein 70 (SWAP70) is a guanine nucleotide exchange factor that participates in the regulation of many cellular processes. However, the role of SWAP70 in NAFLD remains unclear. This study aimed to identify the function and mechanism of SWAP70 in NAFLD. APPROACH AND RESULTS The results showed that the expression of SWAP70 was significantly increased in mice and hepatocytes after metabolic stimulation. Overexpression of SWAP70 in hepatocytes suppressed lipid deposition and inflammation, and SWAP70 knockdown created the inverse effect. Using hepatocyte-specific Swap70 knockout and overexpression mice fed a high-fat, high-cholesterol diet, we demonstrated that SWAP70 suppressed the progression of nonalcoholic steatohepatitis by inhibiting lipid accumulation, inflammatory response, and fibrosis. Mechanically, RNA sequencing analysis and immunoprecipitation assays revealed that SWAP70 inhibited the interaction between transforming growth factor β-activated kinase 1 (TAK1) binding protein 1 and TAK1 and sequentially suppressed the phosphorylation of TAK1 and subsequent c-Jun N-terminal kinase/P38 signaling. Inhibition of TAK1 activation blocked hepatocyte lipid deposition and inflammation caused by SWAP70 knockdown. CONCLUSIONS SWAP70 is a protective molecule that can suppress the progression of NAFLD by inhibiting hepatic steatosis and inflammation. SWAP70 may be important for mitigating the progression of NAFLD.
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Affiliation(s)
- Qiaofeng Qian
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Yang Li
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Jiajun Fu
- Medical Science Research CentreZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Dewen Leng
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Zhe Dong
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Jiajun Shi
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Hongjie Shi
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Dengwei Cao
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Xu Cheng
- Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Yufeng Hu
- Medical Science Research CentreZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Qiujie Luo
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Manli Hu
- Medical Science Research CentreZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Yong Ran
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Hao Tang
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Hui Liu
- Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanChina
- Institute of Model Animal of Wuhan UniversityWuhanChina
| | - Jinping Liu
- Department of Cardiovascular SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
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Zhu J, Zhong F, Chen F, Yang Y, Liao Y, Cao L, Zhou Y, Bai Q. circRNA_0001679/miR-338-3p/DUSP16 axis aggravates acute lung injury. Open Med (Wars) 2022; 17:403-413. [PMID: 35291714 PMCID: PMC8886607 DOI: 10.1515/med-2022-0417] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/25/2021] [Accepted: 11/24/2021] [Indexed: 12/15/2022] Open
Abstract
Acute lung injury (ALI) is a respiratory disorder characterized by acute respiratory failure. circRNA mus musculus (mmu)-circ_0001679 was reported overexpressed in septic mouse models of ALI. Here the function of circ_0001679 in sepsis-induced ALI was investigated. In vitro models and animal models with ALI were, respectively, established in mouse lung epithelial (MLE)-12 cells and C57BL/6 mice. Pulmonary specimens were harvested for examination of the pathological changes. The pulmonary permeability was examined by wet-dry weight (W/D) ratio and lung permeability index. The levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-1β in the bronchoalveolar lavage fluid (BALF), the lung tissues, and the supernatant of MLE-12 cells were measured by enzyme linked immunosorbent assay . Apoptosis was determined by flow cytometry. Bioinformatics analysis and luciferase reporter assay were used to assess the interactions between genes. We found that circ_0001679 was overexpressed in lipopolysaccharide (LPS)-stimulated MLE-12 cells. circ_0001679 knockdown suppressed apoptosis and proinflammatory cytokine production induced by LPS. Moreover, circ_0001679 bound to mmu-miR-338-3p and miR-338-3p targeted dual-specificity phosphatases 16 (DUSP16). DUSP16 overexpression reversed the effect of circ_0001679 knockdown in LPS-stimulated MLE-12 cells. Furthermore, circ_0001679 knockdown attenuated lung pathological changes, reduced pulmonary microvascular permeability, and suppressed inflammation in ALI mice. Overall, circ_0001679 knockdown inhibits sepsis-induced ALI progression through the miR-338-3p/DUSP16 axis.
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Affiliation(s)
- Jiang Zhu
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Fukuan Zhong
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Futao Chen
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Yang Yang
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Yingying Liao
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Lifeng Cao
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Yong Zhou
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Qiaohong Bai
- Department of Respiratory, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Zhongfu Road 1, Gulou District, Nanjing 210003, Jiangsu, China
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9
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Khoubai FZ, Grosset CF. DUSP9, a Dual-Specificity Phosphatase with a Key Role in Cell Biology and Human Diseases. Int J Mol Sci 2021; 22:ijms222111538. [PMID: 34768967 PMCID: PMC8583968 DOI: 10.3390/ijms222111538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/14/2022] Open
Abstract
Mitogen-activated protein kinases (MAPKs) are essential for proper cell functioning as they regulate many molecular effectors. Careful regulation of MAPKs is therefore required to avoid MAPK pathway dysfunctions and pathologies. The mammalian genome encodes about 200 phosphatases, many of which dephosphorylate the MAPKs and bring them back to an inactive state. In this review, we focus on the normal and pathological functions of dual-specificity phosphatase 9 (DUSP9)/MAP kinase phosphatases-4 (MKP-4). This cytoplasmic phosphatase, which belongs to the threonine/tyrosine dual-specific phosphatase family and was first described in 1997, is known to dephosphorylate ERK1/2, p38, JNK and ASK1, and thereby to control various MAPK pathway cascades. As a consequence, DUSP9 plays a major role in human pathologies and more specifically in cardiac dysfunction, liver metabolic syndromes, diabetes, obesity and cancer including drug response and cell stemness. Here, we recapitulate the mechanism of action of DUSP9 in the cell, its levels of regulation and its roles in the most frequent human diseases, and discuss its potential as a therapeutic target.
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10
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NR4A1 enhances MKP7 expression to diminish JNK activation induced by ROS or ER-stress in pancreatic β cells for surviving. Cell Death Discov 2021; 7:133. [PMID: 34088892 PMCID: PMC8178316 DOI: 10.1038/s41420-021-00521-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/18/2021] [Accepted: 05/13/2021] [Indexed: 12/03/2022] Open
Abstract
Under adverse conditions, such as sustained or chronic hyperglycemia or hyperlipidemia, ROS (reactive oxygen species) or/and ER-stress (endoplasmic reticulum stress) will be induced in pancreatic β cells. ROS or ER-stress damages β-cells even leads to apoptosis. Previously we found ROS or ER-stress resulted in JNK activation in β cells and overexpressing NR4A1 in MIN6 cells reduced JNK activation via modulating cbl-b expression and subsequent degrading the upstream JNK kinase (MKK4). To search other possible mechanisms, we found the mRNA level and protein level of MKP7 (a phosphatase for phospho-JNK) were dramatic reduced in pancreatic β cells in the islets from NR4A1 KO mice compared with that from wild type mice. To confirm what we found in animals, we applied pancreatic β cells (MIN6 cells) and found that the expression of MKP7 was increased in NR4A1-overexpression MIN6 cells. We further found that knocking down the expression of MKP7 increased the p-JNK level in pancreatic β cells upon treatment with TG or H2O2. After that, we figured out that NR4A1 did enhance the transactivation of the MKP7 promoter by physical association with two putative binding sites. In sum, NR4A1 attenuates JNK phosphorylation incurred by ER-stress or ROS partially via enhancing MKP7 expression, potentially decreases pancreatic β cell apoptosis induced by ROS or ER-stress. Our finding provides a clue for diabetes prevention.
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Ma X, Huang Y, Ding Y, Shi L, Zhong X, Kang M, Li C. Analysis of piRNA expression spectra in a non-alcoholic fatty liver disease mouse model induced by a methionine- and choline-deficient diet. Exp Ther Med 2020; 19:3829-3839. [PMID: 32346447 PMCID: PMC7185076 DOI: 10.3892/etm.2020.8653] [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: 08/22/2019] [Accepted: 03/19/2020] [Indexed: 11/28/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become a common health issue worldwide, and P-element-induced wimpy testis (PIWI)-interacting RNAs (piRNAs) have been shown to be differentially expressed in a variety of diseases. The aim of the present study was to investigate the potential relationship between piRNA and NAFLD. A NAFLD mouse model was established using a methionine- and choline-deficient (MCD) diet and methionine- and choline-sufficient (MCS) diet. Following this, mouse liver tissues were removed and stained with hematoxylin and eosin, and the levels of alanine aminotransferase, aspartate aminotransferase, total cholesterol and triglyceride were measured. Moreover, the liver tissues of the control and model groups were selected for piRNA gene chip analysis to identify piRNAs with differential expression in NAFLD. In addition, the differentially expressed piRNAs screened from the microarray were assessed by reverse transcription-quantitative PCR (RT-qPCR). piRNAs with potential research value were also selected for further analysis of target genes, using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathways. The present study identified a total of 1,285 piRNAs with differential expression levels. The results indicated that in the model group, 641 piRNAs were upregulated, while 644 piRNAs were downregulated. Furthermore, piRNAs were enriched in ‘cancer’, ‘Hippo signaling’, ‘Wnt signaling’ and ‘Mitogen-activated protein kinase signaling’ pathways. The RT-qPCR results demonstrated that piRNA DQ566704 and piRNA DQ723301 were significantly upregulated in the model group, which was largely consistent with the analysis results of the piRNA arrays. Therefore, the results of the piRNA arrays and the further analyses in the present study were considered reliable. Collectively, the present results suggest that differentially expressed piRNAs exist in NAFLD and may affect the development of NAFLD via related pathways.
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Affiliation(s)
- Xuyang Ma
- Department of Gastroenterology, Luzhou People's Hospital, Luzhou, Sichuan 646000, P.R. China
| | - Yumei Huang
- Department of Gastroenterology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Ying Ding
- Technology Education Training Department, Luzhou People's Hospital, Luzhou, Sichuan 646000, P.R. China
| | - Lei Shi
- Department of Gastroenterology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xiaoling Zhong
- Department of Gastroenterology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Ming Kang
- Department of Gastroenterology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Changping Li
- Department of Gastroenterology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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