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Wang L, Wang M, Niu H, Zhi Y, Li S, He X, Ren Z, Wen S, Wu L, Wen S, Zhang R, Wen Z, Yang J, Zhang X, Chen Y, Qian X, Shi G. Cholesterol-induced HRD1 reduction accelerates vascular smooth muscle cell senescence via stimulation of endoplasmic reticulum stress-induced reactive oxygen species. J Mol Cell Cardiol 2024; 187:51-64. [PMID: 38171043 DOI: 10.1016/j.yjmcc.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/28/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024]
Abstract
Senescence of vascular smooth muscle cells (VSMCs) is a key contributor to plaque vulnerability in atherosclerosis (AS), which is affected by endoplasmic reticulum (ER) stress and reactive oxygen species (ROS) production. However, the crosstalk between ER stress and ROS production in the pathogenesis of VSMC senescence remains to be elucidated. ER-associated degradation (ERAD) is a complex process that clears unfolded or misfolded proteins to maintain ER homeostasis. HRD1 is the major E3 ligase in mammalian ERAD machineries that catalyzes ubiquitin conjugation to the unfolded or misfolded proteins for degradation. Our results showed that HRD1 protein levels were reduced in human AS plaques and aortic roots from ApoE-/- mice fed with high-fat diet (HFD), along with the increased ER stress response. Exposure to cholesterol in VSMCs activated inflammatory signaling and induced senescence, while reduced HRD1 protein expression. CRISPR Cas9-mediated HRD1 knockout (KO) exacerbated cholesterol- and thapsigargin-induced cell senescence. Inhibiting ER stress with 4-PBA (4-Phenylbutyric acid) partially reversed the ROS production and cell senescence induced by HRD1 deficiency in VSMCs, suggesting that ER stress alone could be sufficient to induce ROS production and senescence in VSMCs. Besides, HRD1 deficiency led to mitochondrial dysfunction, and reducing ROS production from impaired mitochondria partly reversed HRD1 deficiency-induced cell senescence. Finally, we showed that the overexpression of HDR1 reversed cholesterol-induced ER stress, ROS production, and cellular senescence in VSMCs. Our findings indicate that HRD1 protects against senescence by maintaining ER homeostasis and mitochondrial functionality. Thus, targeting HRD1 function may help to mitigate VSMC senescence and prevent vascular aging related diseases. TRIAL REGISTRATION: A real-world study based on the discussion of primary and secondary prevention strategies for coronary heart disease, URL:https://www.clinicaltrials.gov, the trial registration number is [2022]-02-121-01.
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Affiliation(s)
- Linli Wang
- Department of Cardiology, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China; Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Min Wang
- Department of Cardiology, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Haiming Niu
- Department of Critical Care Medicine, Zhongshan People's Hospital, Zhongshan, Guangdong, China.
| | - Yaping Zhi
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Shasha Li
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Xuemin He
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Zhitao Ren
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Shiyi Wen
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Lin Wu
- Department of Cardiology, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Siying Wen
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Rui Zhang
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Zheyao Wen
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Jing Yang
- Department of Endocrinology and Metabolism, The Eighth affiliated hospital of Sun Yat-sen University, Shenzhen, Guangdong, China.
| | - Ximei Zhang
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Yanming Chen
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Xiaoxian Qian
- Department of Cardiology, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Guojun Shi
- Department of Endocrinology and Metabolism, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, Third affiliated hospital of Sun Yat-sen University, Guangzhou, Guangdong, China; State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou, China.
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Gao G, Li X, Wu H, Huang LL, Lin YX, Huo Z, Xiang ZY, Zhou X. LncRNA SNHG6 Upregulates KPNA5 to Overcome Gemcitabine Resistance in Pancreatic Cancer via Sponging miR-944. Pharmaceuticals (Basel) 2023; 16:184. [PMID: 37259332 PMCID: PMC9961296 DOI: 10.3390/ph16020184] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 08/27/2023] Open
Abstract
Gemcitabine (GEM) is the gold-standard therapeutic regimen for patients with pancreatic cancer (PC); however, patients may receive limited benefits due to the drug resistance of GEM. LncRNA SNHG6 is reported to play key roles in drug resistance, but its role and molecular mechanism in PC remain incompletely understood. We found that LncRNA SNHG6 is drastically downregulated in GEM-resistant PC and is positively correlated with the survival of PC patients. With the help of bioinformatic analysis and molecular approaches, we show that LncRNA SNHG6 can sponge miR-944, therefore causing the upregulation of the target gene KPNA5. In vitro experiments showed that LncRNA SNHG6 and KPNA5 suppress PC cell proliferation and colony formation. The Upregulation of LncRNA SNHG6 and KPNA5 increases the response of GEM-resistant PANC-1 cells to GEM. We also show that the expression of KPNA5 is higher in patients without GEM resistance than in those who developed GEM resistance. In summary, our findings indicate that the LncRNA SNHG6/miR944/KPNA5 axis plays a pivotal role in overcoming GEM resistance, and targeting this axis may contribute to an increasing of the benefits of PC patients from GEM treatment.
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Affiliation(s)
- Ge Gao
- Department of Clinical Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Xin Li
- Department of Clinical Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Hui Wu
- Department of Clinical Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Ling-li Huang
- Department of Clinical Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yu-xin Lin
- Department of Clinical Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Zhi Huo
- School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Zhong-yuan Xiang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Xiao Zhou
- Department of Clinical Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
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Adhikari UK, Sakiz E, Habiba U, Mikhael M, Senesi M, David MA, Guillemin GJ, Ooi L, Karl T, Collins S, Tayebi M. Treatment of microglia with Anti-PrP monoclonal antibodies induces neuronal apoptosis in vitro. Heliyon 2021; 7:e08644. [PMID: 35005289 PMCID: PMC8715334 DOI: 10.1016/j.heliyon.2021.e08644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/23/2021] [Accepted: 12/16/2021] [Indexed: 11/04/2022] Open
Abstract
Previous reports highlighted the neurotoxic effects caused by some motif-specific anti-PrPC antibodies in vivo and in vitro. In the current study, we investigated the detailed alterations of the proteome with liquid chromatography–mass spectrometry following direct application of anti-PrPC antibodies on mouse neuroblastoma cells (N2a) and mouse primary neuronal (MPN) cells or by cross-linking microglial PrPC with anti-PrPC antibodies prior to co-culture with the N2a/MPN cells. Here, we identified 4 (3 upregulated and 1 downregulated) and 17 (11 upregulated and 6 downregulated) neuronal apoptosis-related proteins following treatment of the N2a and N11 cell lines respectively when compared with untreated cells. In contrast, we identified 1 (upregulated) and 4 (2 upregulated and 2 downregulated) neuronal apoptosis-related proteins following treatment of MPN cells and N11 when compared with untreated cells. Furthermore, we also identified 3 (2 upregulated and 1 downregulated) and 2 (1 upregulated and 1 downregulated) neuronal apoptosis-related related proteins following treatment of MPN cells and N11 when compared to treatment with an anti-PrP antibody that lacks binding specificity for mouse PrP. The apoptotic effect of the anti-PrP antibodies was confirmed with flow cytometry following labelling of Annexin V-FITC. The toxic effects of the anti-PrP antibodies was more intense when antibody-treated N11 were co-cultured with the N2a and the identified apoptosis proteome was shown to be part of the PrPC-interactome. Our observations provide a new insight into the prominent role played by microglia in causing neurotoxic effects following treatment with anti-PrPC antibodies and might be relevant to explain the antibody mediated toxicity observed in other related neurodegenerative diseases such as Alzheimer. Antibody cross-linking neuronal PrPC induces apoptosis. Antibody cross-linking microglial PrPC induces neuronal apoptosis. Different apoptotic pathways were triggered by specific anti-PrP antibody treatments.
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Shen L, Zhang Y, Zhou W, Peng Z, Hong X, Zhang Y. Circular RNA expression in ovarian endometriosis. Epigenomics 2018; 10:559-572. [PMID: 29334789 DOI: 10.2217/epi-2017-0079] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AIM Circular RNAs (circRNAs) with miRNA response elements (MREs) could function as competing endogenous RNA (ceRNA) in regulating gene expression. This study was carried out to identify the expression profile and role of circRNAs in endometriosis. MATERIALS & METHODS Microarray assay was performed in four paired ovarian endometriomas and eutopic endometrium, followed by quantitative real-time RT-PCR in 24 paired samples. Bioinformatical algorithms were used to predict MREs, as well as ceRNA and KEGG pathway analysis. RESULTS We identified 262 upregulated and 291 downregulated circRNAs, binding with 1225 MREs. The ceRNA network included 122 miRNAs and 137 mRNAs, which are involed in nine pathways. CONCLUSION CircRNAs are differentially expressed in endometriosis, which might be related with pathogenesis of endometriosis.
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Affiliation(s)
- Licong Shen
- Department of Obstetrics & Gynecology, Xiangya Hospital, Central South University, No 87 Xiangya Road, Changsha Hunan 410008, PR China
| | - Yu Zhang
- Department of Obstetrics & Gynecology, Xiangya Hospital, Central South University, No 87 Xiangya Road, Changsha Hunan 410008, PR China
| | - Wenjun Zhou
- Department of Obstetrics & Gynecology, Xiangya Hospital, Central South University, No 87 Xiangya Road, Changsha Hunan 410008, PR China
| | - Zheng Peng
- Department of Obstetrics & Gynecology, Xiangya Hospital, Central South University, No 87 Xiangya Road, Changsha Hunan 410008, PR China
| | - Xiaxia Hong
- Department of Obstetrics & Gynecology, Xiangya Hospital, Central South University, No 87 Xiangya Road, Changsha Hunan 410008, PR China
| | - Yi Zhang
- Department of Obstetrics & Gynecology, Xiangya Hospital, Central South University, No 87 Xiangya Road, Changsha Hunan 410008, PR China
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Ma L, Zhao W, Zheng Q, Chen T, Qi J, Li G, Tong T. Ribosomal L1 domain and lysine-rich region are essential for CSIG/ RSL1D1 to regulate proliferation and senescence. Biochem Biophys Res Commun 2015; 469:593-8. [PMID: 26686419 DOI: 10.1016/j.bbrc.2015.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 12/01/2015] [Indexed: 12/14/2022]
Abstract
The expression change of cellular senescence-associated genes is underlying the genetic foundation of cellular senescence. Using a suppressive subtractive hybridization system, we identified CSIG (cellular senescence-inhibited gene protein; RSL1D1) as a novel senescence-associated gene. CSIG is implicated in various process including cell cycle regulation, apoptosis, and tumor metastasis. We previously showed that CSIG plays an important role in regulating cell proliferation and cellular senescence progression through inhibiting PTEN, however, which domain or region of CSIG contributes to this function? To clarify this question, we investigated the functional importance of ribosomal L1 domain and lysine (Lys) -rich region of CSIG. The data showed that expression of CSIG potently reduced PTEN expression, increased cell proliferation rates, and reduced the senescent phenotype (lower SA-β-gal activity). By contrast, neither the expression of CSIG N- terminal (NT) fragment containing the ribosomal L1 domain nor C-terminal (CT) fragment containing Lys-rich region could significantly altered the levels of PTEN; instead of promoting cell proliferation and delaying cellular senescence, expression of CSIG-NT or CSIG-CT inhibited cell proliferation and accelerated cell senescence (increased SA-β-gal activity) compared to either CSIG over-expressing or control (empty vector transfected) cells. The further immunofluorescence analysis showed that CSIG-CT and CSIG-NT truncated proteins exhibited different subcellular distribution with that of wild-type CSIG. Conclusively, both ribosomal L1 domain and Lys-rich region of CSIG are critical for CSIG to act as a regulator of cell proliferation and cellular senescence.
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Affiliation(s)
- Liwei Ma
- Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, 38 Xueyuan Road, Beijing 100191, PR China
| | - Wenting Zhao
- Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, 38 Xueyuan Road, Beijing 100191, PR China
| | - Quanhui Zheng
- Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, 38 Xueyuan Road, Beijing 100191, PR China
| | - Tianda Chen
- Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, 38 Xueyuan Road, Beijing 100191, PR China
| | - Ji Qi
- Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, 38 Xueyuan Road, Beijing 100191, PR China
| | - Guodong Li
- Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, 38 Xueyuan Road, Beijing 100191, PR China
| | - Tanjun Tong
- Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, 38 Xueyuan Road, Beijing 100191, PR China.
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Zhou W. Editorial: Transcriptional Regulation in Cancers and Metabolic Diseases. Front Endocrinol (Lausanne) 2015; 6:173. [PMID: 26594199 PMCID: PMC4633520 DOI: 10.3389/fendo.2015.00173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/26/2015] [Indexed: 11/16/2022] Open
Affiliation(s)
- Wen Zhou
- Department of Biological Sciences, Columbia University, New York, NY, USA
- Braman Family Breast Cancer Institute, University of Miami Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
- Molecular Oncology Research Program, Division of Surgical Oncology, Dewitt Daughtry Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
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