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LYu P, Pan H, Hu K, Xue Y, Li Q, Lin R, Zheng S, Guo Z, Guo K. The LEPIS-HuR-TMOD4 axis regulates hepatic cholesterol homeostasis and accelerates atherosclerosis. Atherosclerosis 2024; 393:117554. [PMID: 38663275 DOI: 10.1016/j.atherosclerosis.2024.117554] [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: 09/13/2022] [Revised: 04/12/2024] [Accepted: 04/12/2024] [Indexed: 06/11/2024]
Abstract
BACKGROUND AND AIMS Long noncoding RNAs (lncRNAs) play important roles in the progression of atherosclerosis. In this study, we identified an uncharacterized lncRNA, Liver Expressions by PSRC1 Induced Specifically (LEPIS). This study aimed to clarify the mechanism though which LEPIS affects atherosclerosis (AS). METHODS The expression of LEPIS and its potential target, tropomodulin 4 (TMOD4), was increased in the livers of ApoE-/- mice fed a high-fat diet (HFD). An ApoE-/- mouse model in which LEPIS or TMOD4 was overexpressed in the liver was established. The plaque load in the aorta was assessed, plasma was collected to measure blood lipid levels, and the liver was collected to study cholesterol metabolism. RESULTS We found that both LEPIS and TMOD4 increased the AS burden and reduced hepatic cholesterol levels. A further study revealed that LEPIS and TMOD4 affected the expression of genes related to hepatic cholesterol homeostasis, including proprotein convertase subtilisin/kexin type 9 (PCSK9) and low-density lipoprotein receptor (LDLR), which are closely related to hypercholesterolemia. Mechanistically, human antigen R (HuR), an RNA-binding protein (RBP), was shown to be critical for the regulation of TMOD4 by LEPIS. Furthermore, we found that verexpression of LEPIS promoted the shuttling of HuR from the nucleus to the cytoplasm, enhanced the stability of TMOD4 mRNA, and in turn promoted the expression of TMOD4. In addition, TMOD4 was found to affect intracellular cholesterol levels through PCSK9. CONCLUSIONS These results suggest that the LEPIS-HuR-TMOD4 axis is a potential intervention target for dysregulated hepatic cholesterol homeostasis and AS and may provide the basis for further reductions in the circulating LDL-C concentration and arterial plaque burden.
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MESH Headings
- Animals
- Humans
- Male
- Mice
- Aortic Diseases/metabolism
- Aortic Diseases/genetics
- Aortic Diseases/pathology
- Atherosclerosis/metabolism
- Atherosclerosis/genetics
- Atherosclerosis/pathology
- Cholesterol/metabolism
- Cholesterol/blood
- Diet, High-Fat
- Disease Models, Animal
- ELAV-Like Protein 1/metabolism
- ELAV-Like Protein 1/genetics
- Homeostasis
- Liver/metabolism
- Mice, Inbred C57BL
- Mice, Knockout, ApoE
- Plaque, Atherosclerotic
- Proprotein Convertase 9/metabolism
- Proprotein Convertase 9/genetics
- Receptors, LDL/genetics
- Receptors, LDL/metabolism
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
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Affiliation(s)
- Ping LYu
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hangyu Pan
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Kexin Hu
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yazhi Xue
- Department of General Practice, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qinxian Li
- Department of Cardiology, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Rongzhan Lin
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shaoyi Zheng
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Zhigang Guo
- Huiqiao Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Kai Guo
- Department of Cardiology, The Seventh Affiliated Hospital of Southern Medical University, Southern Medical University, Foshan, China.
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Wang X, Yu H, Gao R, Liu M, Xie W. A comprehensive review of the family of very-long-chain fatty acid elongases: structure, function, and implications in physiology and pathology. Eur J Med Res 2023; 28:532. [PMID: 37981715 PMCID: PMC10659008 DOI: 10.1186/s40001-023-01523-7] [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: 07/28/2023] [Accepted: 11/10/2023] [Indexed: 11/21/2023] Open
Abstract
BACKGROUND The very-long-chain fatty acid elongase (ELOVL) family plays essential roles in lipid metabolism and cellular functions. This comprehensive review explores the structural characteristics, functional properties, and physiological significance of individual ELOVL isoforms, providing insights into lipid biosynthesis, cell membrane dynamics, and signaling pathways. AIM OF REVIEW This review aims to highlight the significance of the ELOVL family in normal physiology and disease development. By synthesizing current knowledge, we underscore the relevance of ELOVLs as potential therapeutic targets. KEY SCIENTIFIC CONCEPTS OF REVIEW We emphasize the association between dysregulated ELOVL expression and diseases, including metabolic disorders, skin diseases, neurodegenerative conditions, and cancer. The intricate involvement of ELOVLs in cancer biology, from tumor initiation to metastasis, highlights their potential as targets for anticancer therapies. Additionally, we discuss the prospects of using isoform-specific inhibitors and activators for metabolic disorders and cancer treatment. The identification of ELOVL-based biomarkers may advance diagnostics and personalized medicine. CONCLUSION The ELOVL family's multifaceted roles in lipid metabolism and cellular physiology underscore its importance in health and disease. Understanding their functions offers potential therapeutic avenues and personalized treatments.
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Affiliation(s)
- Xiangyu Wang
- Department of Gynecological Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, People's Republic of China
| | - Hao Yu
- Department of Gynecological Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, People's Republic of China
| | - Rong Gao
- Department of Gynecological Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, People's Republic of China
| | - Ming Liu
- Department of Gynecological Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, People's Republic of China
| | - Wenli Xie
- Department of Gynecology, The Second Hospital of Shandong University, Jinan, Shandong, 250033, People's Republic of China.
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Association between Genetic Variants of CELSR2-PSRC1-SORT1 and Cardiovascular Diseases: A Systematic Review and Meta-Analysis. J Cardiovasc Dev Dis 2023; 10:jcdd10030091. [PMID: 36975855 PMCID: PMC10056735 DOI: 10.3390/jcdd10030091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 02/11/2023] [Accepted: 02/15/2023] [Indexed: 02/24/2023] Open
Abstract
A cluster of three genes CELSR2, PSRC1, and SORT1 has been associated with cardiovascular diseases. Thus, the aim of this study was (i) to perform a systematic review and updated meta-analysis of the association of three polymorphisms (rs646776, rs599839, and rs464218) of this cluster with cardiovascular diseases, and (ii) to explore by PheWAS signals of the three SNPs in cardiovascular diseases and to evaluate the effect of rs599839 with tissue expression by in silico tools. Three electronic databases were searched to identify eligible studies. The meta-analysis showed that the rs599839 (allelic OR 1.19, 95% CI 1.13–1.26, dominant OR 1.22, 95% CI 1.06–1.39, recessive OR 1.23, 95% CI 1.15–1.32), rs646776 (allelic OR 1.46, 95% CI 1.17–1.82) polymorphisms showed an increased risk for cardiovascular diseases. PheWas analysis showed associations with coronary artery disease and total cholesterol. Our results suggest a possible involvement of the CELSR2-PSRC1-SORT1 cluster variants in the risk association of cardiovascular diseases, particularly coronary artery disease.
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Tan J, Che Y, Liu Y, Hu J, Wang W, Hu L, Zhou Q, Wang H, Li J. CELSR2 deficiency suppresses lipid accumulation in hepatocyte by impairing the UPR and elevating ROS level. FASEB J 2021; 35:e21908. [PMID: 34478580 DOI: 10.1096/fj.202100786rr] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 01/06/2023]
Abstract
Cadherin EGF LAG seven-pass G-type receptor 2 (CELSR2), a mammalian orthologue of drosophila flamingo, belongs to the cadherin subfamily. CELSR2 mainly function in neural development and cilium polarity. Recent studies showed that the CELSR2 gene is related to many human diseases, including coronary artery disease, idiopathic scoliosis, and cancer. Genome-Wide Association Studies data showed that SNP in the CELSR2-PSRC1-SORT1 gene loci has a strong association with circulating lipid levels and coronary artery disease. However, the function and underlying mechanism of CELSR2 in hepatic lipid metabolism remain unknown. Here, we found that CELSR2 expression is decreased in the liver of NAFLD/NASH patients and db/db mice. Depletion of CELSR2 significantly decreased the lipid accumulation in hepatocytes by suppressing the expression of lipid synthesis enzymes. Moreover, CELSR2 deficiency impaired the physiological unfolded protein response (UPR), which damages the ER homeostasis, and elevates the reactive oxygen species (ROS) level by decreasing the antioxidant expression. Scavenging of ROS by N-acetylcysteine treatment could restore the decreased lipid accumulation of CELSR2 knockdown cells. Furthermore, CELSR2 loss impaired cell survival by suppressing cell proliferation and promoting apoptosis. Our results uncovered a new role of CELSR2 in regulating lipid homeostasis and UPR, suggesting CELSR2 may be a new therapeutic target for non-alcoholic fatty liver disease.
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Affiliation(s)
- Junyang Tan
- Zhuhai Institute of Translational Medicine Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, China.,The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, China
| | - Yaping Che
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, China
| | - Yanyan Liu
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, China
| | - Jiaqiao Hu
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, China
| | - Wenjun Wang
- Zhuhai Institute of Translational Medicine Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, China.,The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, China.,The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Liubing Hu
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, China
| | - Qinghua Zhou
- Zhuhai Institute of Translational Medicine Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, China.,The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, China.,The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Hao Wang
- The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Jianshuang Li
- Zhuhai Institute of Translational Medicine Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, China.,The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, China
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Tian X, Qin Y, Tian Y, Ge X, Cui J, Han H, Liu L, Yu H. Identification of vascular dementia and Alzheimer's disease hub genes expressed in the frontal lobe and temporal cortex by weighted co-expression network analysis and construction of a protein-protein interaction. Int J Neurosci 2021; 132:1049-1060. [PMID: 33401985 DOI: 10.1080/00207454.2020.1860966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Background: It is difficult to distinguish cognitive decline due to AD from that sustained by cerebrovascular disease in view of the great overlap. It is uncertain in the molecular biological pathway behind AD and VaD.Objective: Our study aimed to explore the hub molecules and their associations with each other to identify potential biomarkers and therapeutic targets for the AD and VaD.Methods: We screened the differentially expressed genes of AD and VaD, used weighted gene co-expression network analysis and then constructed a VaD-AD-specific protein-protein interaction network with functional annotation to their related metabolic pathways. Finally, we performed a ROC curve analysis of hub proteins to get an idea about their diagnostic value.Results: In the frontal lobe and temporal cortex, hub genes were identified. With regard to VaD, there were only three hub genes which encoded the neuropeptides, SST, NMU and TAC1. The AUC of these genes were 0.804, 0.768 and 0.779, respectively. One signature was established for these three hub genes with AUC of 0.990. For the identification of AD and VaD, all hub genes were receptors. These genes included SH3GL2, PROK2, TAC3, HTR2A, MET, TF, PTH2R CNR1, CHRM4, PTPN3 and CRH. The AUC of these genes were 0.853, 0.859, 0.796, 0.775, 0.706, 0.677, 0.696, 0.668 and 0.652, respectively. The other signature was built for eleven hub genes with AUC of 0.990.Conclusion: In the frontal lobe and temporal cortex regions, hub genes are used as diagnostic markers, which may provide insight into personalized potential biomarkers and therapeutic targets for patients with VaD and AD.
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Affiliation(s)
- Xiaodou Tian
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan, P.R. China
| | - Yao Qin
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan, P.R. China
| | - Yuling Tian
- Department of Neurology, First Hospital of Shanxi Medical University, Taiyuan, P.R. China
| | - Xiaoyan Ge
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan, P.R. China
| | - Jing Cui
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan, P.R. China
| | - Hongjuan Han
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan, P.R. China
| | - Long Liu
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan, P.R. China
| | - Hongmei Yu
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan, P.R. China.,Shanxi Provincial Key Laboratory of Major Diseases Risk Assessment, Shanxi Medical University, Taiyuan, P.R. China
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Zhou L, Xing C, Zhou D, Yang R, Cai M. Downregulation of lncRNA FGF12-AS2 suppresses the tumorigenesis of NSCLC via sponging miR-188-3p. Open Med (Wars) 2020; 15:986-996. [PMID: 33344773 PMCID: PMC7724005 DOI: 10.1515/med-2020-0219] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 07/08/2020] [Accepted: 07/13/2020] [Indexed: 12/12/2022] Open
Abstract
Background Non-small-cell lung carcinoma (NSCLC) seriously threatens the health of human beings. Aberrant expression of lncRNAs has been confirmed to be related with the progression of multiple malignant tumors, including NSCLC. LncRNA FGF12-AS2 has been considered to be upregulated in NSCLC. However, the mechanism by which FGF12-AS2 promotes the tumorigenesis of NSCLC remains elusive. Methods Gene and protein expressions in NSCLC cells were measured by q-PCR and western blot, respectively. CCK-8 and immunofluorescence staining were performed to detect the cell proliferation. Cell apoptosis was tested by flow cytometry. Transwell assay was used to detect the cell migration and invasion. Finally, the dual luciferase report assay was used to verify the relation among FGF12-AS2, miR-188-3p, and NCAPG2. Results Downregulation of FGF12-AS2 significantly inhibited the proliferation of NSCLC cells via inducing apoptosis. In addition, FGF12-AS2 silencing notably suppressed the migration and invasion of A549 cells. Meanwhile, FGF12-AS2 modulated the progression of NSCLC via regulation of miR-188-3p/NCAPG2 axis. Finally, knockdown of FGF12-AS2 inhibited the tumorigenesis of NSCLC via suppressing the EMT process of NSCLC. Conclusion Downregulation of lncRNA FGF12-AS2 suppressed the tumorigenesis of NSCLC via sponging miR-188-3p. Thus, FGF12-AS2 may serve as a potential target for the treatment of NSCLC.
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Affiliation(s)
- Lili Zhou
- Department of Oncology, Yancheng Second People’s Hospital, No. 135 Kaifang Avenue, Yancheng 224003, Jiangsu, China
| | - Chen Xing
- Department of Oncology, Yancheng Second People’s Hospital, No. 135 Kaifang Avenue, Yancheng 224003, Jiangsu, China
| | - Dongxia Zhou
- Department of Oncology, Yancheng Second People’s Hospital, No. 135 Kaifang Avenue, Yancheng 224003, Jiangsu, China
| | - Rong Yang
- Department of Oncology, Yancheng Second People’s Hospital, No. 135 Kaifang Avenue, Yancheng 224003, Jiangsu, China
| | - Maohuai Cai
- Department of Oncology, Yancheng Second People’s Hospital, No. 135 Kaifang Avenue, Yancheng 224003, Jiangsu, China
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