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Wang H, Liu L, Gong H, Li H. Upregulation of FAM134B inhibits endoplasmic reticulum stress-related degradation protein expression and promotes hepatocellular carcinogenesis. J Cell Mol Med 2024; 28:e17964. [PMID: 37728036 PMCID: PMC10902567 DOI: 10.1111/jcmm.17964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/21/2023] Open
Abstract
Endoplasmic reticulum (ER) stress can stimulate the proliferation and metastasis of hepatocellular carcinoma (HCC) cells while hindering apoptosis and immune system function, but the molecular mechanism of ER stress in HCC has yet to be fully studied. We aim to investigate the molecular mechanism by which FAM134B inhibits autophagy of HCC cells by reducing the expression of ER stress-related degradation proteins. Clinical samples were collected for this study. Normal liver cell lines HL7702 and Hep3B and Huh7 HCC cell lines were cultured. Construction of FAM134B knockdown cell line. Cell proliferation was measured using the CCK-8 assay, while cell migration and invasion capabilities were detected using the plate colony formation assay. Flow cytometry was used to detect the apoptosis rate. Transmission electron microscopy was used to observe the formation of autophagosomes. qRT-PCR and WB detective expression changes related to autophagy proteins. Finally, the expression of the relevant proteins was observed by immunohistochemistry. The expression of FAM134B was significantly increased in human liver cancer tissue and HCC cell lines Hep3B and Huh7. After the lentiviral vector was transfected into Hep3B cells with sh-FAM134B, results showed that sh-FAM134B could effectively inhibit Hep3B cell proliferation and promote HCC cell apoptosis. Meanwhile, sh-FAM134B could effectively induce the autophagy of Hep3B liver cancer cells. Immunohistochemistry results showed that sh-FAM134B could effectively induce ER stress. FAM134B inhibits HCC cell autophagy and promotes the progression of liver cancer by inhibiting the expression of ER stress-related degradation factors such as DERL2, EDEM1, SEL1L and HRD1.
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Affiliation(s)
- Houhong Wang
- Department of General SurgeryThe Affiliated Bozhou Hospital of Anhui Medical UniversityBozhouChina
| | - Lu Liu
- Department of Endocrine DepartmentThe Affiliated Nantong Hospital of Shanghai Jiao Tong UniversityNantongChina
| | - Huihui Gong
- Faculty of Health and Life SciencesOxford Brookes UniversityOxfordEnglandUK
| | - Heng Li
- Department of Comprehensive Surgery, Anhui Provincial Cancer HospitalWest District of The First Affiliated Hospital of USTCHefeiChina
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2
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Liu M, Zhang Y, Li Y, Shi T, Yan Y. LncRNA Zfas1 boosts cell apoptosis and autophagy in myocardial injury induced by hypoxia via miR-383-5p/ATG10 axis. Heliyon 2024; 10:e24578. [PMID: 38327458 PMCID: PMC10847611 DOI: 10.1016/j.heliyon.2024.e24578] [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: 02/14/2023] [Revised: 12/29/2023] [Accepted: 01/10/2024] [Indexed: 02/09/2024] Open
Abstract
Background Myocardial injury has been regarded as a major cause of several heart diseases. Long non-coding RNA (lncRNA) has emerged as a key regulator in a wide array of diseases. Aim of the study This study aims to explore the role of Zfas1 in myocardial injury. Methods 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was adopted to evaluate the proliferative capability of H9c2 cells. Terminal deoxynucleotidyltransferase dUTP nick end labeling (TUNEL) and flow cytometry assays were employed to measure cell apoptosis. The expression of proteins related to apoptosis and autophagy was examined by Western blot. Immunofluorescence (IF) assay was performed to monitor the process of autophagy. Real-time reverse-transcription polymerase chain reaction (RT-qPCR) was employed to determine the expressions of autophagy-related gene 10 (ATG10), miR-383-5p and Zfas1. The interacting relationship between miR-383-5p and ATG10 (or Zfas1) was assessed by luciferase reporter and RNA-binding protein immunoprecipitation (RIP) assays. Results The treatment of hypoxia hindered cell proliferation but accelerated cell apoptosis and autophagy. ATG10 exhibited higher mRNA and protein expression in H9c2 cells induced by hypoxia. MiR-383-5p was revealed to be the upstream gene of ATG10 and could interact with ATG10. Zfas1 was validated to sponge miR-383-5p and positively regulated ATG10 expression. Zfas1 knockdown-mediated cellular proliferation, apoptosis and autophagy phenotypes were counteracted by ATG10 abundance. Conclusions LncRNA Zfas1 boosts cell apoptosis and autophagy in myocardial injury induced by hypoxia via miR-383-5p/ATG10 axis, indicating that Zfas1 may be utilized as a therapeutic target for myocardial injury.
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Affiliation(s)
- Miaomiao Liu
- Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - Ying Zhang
- Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - Yongxin Li
- Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - Tao Shi
- Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - Yang Yan
- Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
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Bartoszewska S, Collawn JF, Bartoszewski R. The Role of the Hypoxia-Related Unfolded Protein Response (UPR) in the Tumor Microenvironment. Cancers (Basel) 2022; 14:4870. [PMID: 36230792 PMCID: PMC9562011 DOI: 10.3390/cancers14194870] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/29/2022] [Accepted: 10/03/2022] [Indexed: 11/19/2022] Open
Abstract
Despite our understanding of the unfolded protein response (UPR) pathways, the crosstalk between the UPR and the complex signaling networks that different cancers utilize for cell survival remains to be, in most cases, a difficult research barrier. A major problem is the constant variability of different cancer types and the different stages of cancer as well as the complexity of the tumor microenvironments (TME). This complexity often leads to apparently contradictory results. Furthermore, the majority of the studies that have been conducted have utilized two-dimensional in vitro cultures of cancer cells that were exposed to continuous hypoxia, and this approach may not mimic the dynamic and cyclic conditions that are found in solid tumors. Here, we discuss the role of intermittent hypoxia, one of inducers of the UPR in the cellular component of TME, and the way in which intermittent hypoxia induces high levels of reactive oxygen species, the activation of the UPR, and the way in which cancer cells modulate the UPR to aid in their survival. Although the past decade has resulted in defining the complex, novel non-coding RNA-based regulatory networks that modulate the means by which hypoxia influences the UPR, we are now just to beginning to understand some of the connections between hypoxia, the UPR, and the TME.
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Affiliation(s)
- Sylwia Bartoszewska
- Department of Inorganic Chemistry, Medical University of Gdansk, 80-416 Gdansk, Poland
| | - James F. Collawn
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Rafal Bartoszewski
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, F. Joliot-Curie 14a Street, 50-383 Wroclaw, Poland
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4
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Zhou Y, Li H, Wang L. Mechanism of miR-34a in the metabolism of extracellular matrix in fibroblasts of stress urinary incontinence via Nampt-mediated autophagy. Cell Stress Chaperones 2022; 27:369-381. [PMID: 35666377 PMCID: PMC9346036 DOI: 10.1007/s12192-022-01278-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/12/2022] [Accepted: 05/15/2022] [Indexed: 01/03/2023] Open
Abstract
Stress urinary incontinence (SUI) is a troublesome hygienic problem that afflicts the female population and is associated with extracellular matrix (ECM). Herein, we investigated the effects of microRNA (miR)-34a on ECM metabolism in fibroblasts of SUI via mediating nicotinamide phosphoribosyl transferase (Nampt/NAmPRTase) and hope to find novel insights in the treatment of SUI. Firstly, the anterior vaginal wall tissues of SUI patients and the female vaginal wall fibroblasts (FVWFs) of non-SUI subjects were collected and identified. Then, FVWFs were treated with 10 ng/mL of interleukin 1 beta (IL-1β) to establish SUI cell models. Subsequently, miR-34a and Nampt expressions in both types of cells were detected via RT-qPCR. It was found that miR-34a was poorly expressed, while Nampt was highly expressed in SUI. Subsequently, IL-1β-treated FVWFs were transfected with miR-34a-mimic and pcDNA3.1-Nampt, respectively. Thereafter, RT-qPCR and Western blot detected that miR-34a overexpression increased COL1A, ACAN, and TIMP-1; decreased MMP-2 and MMP-9; and elevated LC3 II/I ratio, Beclin-1 expression, and the autophagosome number in IL-1β-treated FVWFs, while Nampt upregulation reversed the above outcomes. Then, dual-luciferase reporter gene assay detected that Nampt is a downstream target of miR-34a. Together, miR-34a overexpression promoted autophagy, inhibited ECM degradation in IL-1β-treated FVWFs, and ameliorated SUI via suppressing Nampt.
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Affiliation(s)
- Ying Zhou
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China
| | - Hongjuan Li
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China.
| | - Lu Wang
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China.
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Quercetin Improves Cardiomyocyte Vulnerability to Hypoxia by Regulating SIRT1/TMBIM6-Related Mitophagy and Endoplasmic Reticulum Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5529913. [PMID: 33859776 PMCID: PMC8024107 DOI: 10.1155/2021/5529913] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/21/2021] [Accepted: 03/01/2021] [Indexed: 12/30/2022]
Abstract
Cardiomyocyte apoptosis is an important pathological mechanism underlying cardiovascular diseases and is commonly caused by hypoxia. Moreover, hypoxic injury occurs not only in common cardiovascular diseases but also following various treatments of heart-related conditions. One of the major mechanisms underlying hypoxic injury is oxidative stress. Quercetin has been shown to exert antioxidant stress and vascular protective effects, making it a promising candidate for treating cardiovascular diseases. Therefore, we examined the protective effect of quercetin on human cardiomyocytes subjected to hypoxia-induced oxidative stress damage and its underlying mechanism. Human cardiomyocytes were subjected to hypoxia/reoxygenation (H/R) in vitro with or without quercetin pretreatment; thereafter, flow cytometry, Cell Counting Kit-8 assay, laser scanning confocal microscopy, quantitative PCR, western blotting, and enzyme-linked immunosorbent assay were performed to analyze the effects of quercetin on cardiomyocytes. We found that H/R induced reactive oxygen species overproduction and endoplasmic reticulum stress, as well as inhibited the function of the mitochondria/endoplasmic reticulum and mitophagy, eventually leading to apoptosis and decreasing the viability of human cardiomyocytes. Quercetin pretreatment inhibited H/R-mediated overproduction of reactive oxygen species and damage caused by oxidative stress, increased mitophagy, regulated mRNA and protein expression of transmembrane BAX inhibitor-1 motif-containing 6 (TMBIM6), regulated endoplasmic reticulum stress, and improved the vulnerability of human cardiomyocytes to H/R. Furthermore, transfection with short interfering RNA against silent information regulator protein 1 (SIRT1) counteracted the protective effects of quercetin on cardiomyocytes. Thus, quercetin was predicted to regulate mitophagy and endoplasmic reticulum stress through SIRT1/TMBIM6 and inhibit H/R-induced oxidative stress damage. These findings may be useful for developing treatments for hypoxic injury-induced cardiovascular diseases and further highlight the potential of quercetin for regulating mitochondrial quality control and endoplasmic reticulum function.
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Chen J, Li L, Bai X, Xiao L, Shangguan J, Zhang W, Zhang X, Wang S, Liu G. Inhibition of Autophagy Prevents Panax Notoginseng Saponins (PNS) Protection on Cardiac Myocytes Against Endoplasmic Reticulum (ER) Stress-Induced Mitochondrial Injury, Ca 2+ Homeostasis and Associated Apoptosis. Front Pharmacol 2021; 12:620812. [PMID: 33762943 PMCID: PMC7982947 DOI: 10.3389/fphar.2021.620812] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/18/2021] [Indexed: 12/20/2022] Open
Abstract
Endoplasmic reticulum (ER) stress is often closely linked to autophagy, hypoxia signaling, mitochondrial biogenesis and reactive oxygen species (ROS) responses. Understanding the interaction between ER stress, mitochondrial function and autophagy is of great importance to provide new mechanisms for the pathology, prevention and treatment of cardiovascular diseases. Our previous study has reported that Panax notoginseng saponins (PNS) protection against thapsigargin (TG)-induced ER stress response and associated cell apoptosis in cardiac myocytes is calcium dependent and mediated by ER Ca2+ release through RyR2. However, whether its protection upon ER stress and associated apoptosis is related to mitochondrial function and autophagy remains largely unknown. Here, we investigated the roles of PNS played in TG-induced mitochondrial function, ROS accumulation and autophagy. We also assessed its effects on Ca2+ homeostasis, ER stress response and associated cell death in the presence of autophagy inhibition. PNS-pretreated primary cultured neonatal rat cardiomyocytes were stimulated with TG to induce ER stress response. Mitochondrial potential (Δψm) was measured by JC-1. The general and mitochondrial ROS were measured by DCFH-DA and MitoSOX Red, respectively. Autophagy was evaluated by immunofluorescence of LC3, and immunoblots of LC3, p62, ATG7 and PINK1. In addition, mRFP-GFP-LC3 labeling was used to assess the autophagic influx. SiATG7 transfected H9c2 cells were generated to inhibit autophagy. Cytosolic and ER Ca2+ dynamics were investigated by calcium imaging. RyR2 oxidation was tested by oxyblot. Cell viability was examined by TUNEL assay. ER stress response and cell apoptosis were detected by immunoblots of BiP, CHOP, Cleaved Caspase-3 and Caspase-12. The results demonstrated that firstly, PNS protects against TG-induced mitochondrial injury and ROS accumulation. Secondly, PNS enhances autophagy in TG-induced cardiac myocytes. Thirdly, inhibition of autophagy diminishes PNS prevention of TG-induced mitochondrial injury, ROS accumulation and disruption of Ca2+ homeostasis. Last but not least, inhibition of autophagy abolishes PNS protection against TG-induced ER stress response and associated apoptosis. In summary, PNS protection against ER stress response and associated apoptosis is related to the regulation of mitochondrial injury and ROS overproduction via modulation of autophagy. These data provide new insights for molecular mechanisms of PNS as a potential preventive approach to the management of cardiovascular diseases.
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Affiliation(s)
- Jun Chen
- Vasculocardiology Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Li Li
- Vasculocardiology Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xueyang Bai
- Vasculocardiology Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lili Xiao
- Vasculocardiology Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiahong Shangguan
- Vasculocardiology Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wenjing Zhang
- Vasculocardiology Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiangqin Zhang
- Vasculocardiology Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shen Wang
- Vasculocardiology Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Gangqiong Liu
- Vasculocardiology Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Shan X, Lv ZY, Yin MJ, Chen J, Wang J, Wu QN. The Protective Effect of Cyanidin-3-Glucoside on Myocardial Ischemia-Reperfusion Injury through Ferroptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8880141. [PMID: 33628391 PMCID: PMC7884153 DOI: 10.1155/2021/8880141] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/20/2021] [Accepted: 01/25/2021] [Indexed: 12/15/2022]
Abstract
This study was conducted to estimate the protective effect of Cyanidin-3-glucoside (C3G) on myocardial ischemia-reperfusion (IR) injury and to explore its mechanism. The rats were subjected to left anterior descending ligation and perfusion surgery. In vitro experiments were performed on H9c2 cells using the oxygen-glucose deprivation/reoxygenation (OGD/R) model. The results showed the administration of C3G reduced the infarction area, mitigated pathological alterations, inhibited ST segment elevation, and attenuated oxidative stress and ferroptosis-related protein expression. C3G also suppressed the expressions of USP19, Beclin1, NCOA4, and LC3II/LC3I. In addition, treatment with C3G relieved oxidative stress, downregulated LC3II/LC3I, reduced autophagosome number, downregulated TfR1 expression, and upregulated the expressions of FTH1 and GPX4 in OGD/R-induced H9c2 cells. C3G could inhibit the protein levels of USP19 and LC3II. C3G promoted K11-linked ubiquitination of Beclin1. Further evidence that C3G reduced ferroptosis and ameliorated myocardial I/R injury was demonstrated with the ferroptosis promoter RSL3. Taken together, C3G could be a potential agent to protect myocardium from myocardial I/R injury.
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Affiliation(s)
- Xin Shan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023 Jiangsu, China
- Hanlin College, Nanjing University of Chinese Medicine, Taizhou, 225300 Jiangsu, China
| | - Zhi-Yang Lv
- Hanlin College, Nanjing University of Chinese Medicine, Taizhou, 225300 Jiangsu, China
| | - Meng-Jiao Yin
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023 Jiangsu, China
| | - Jing Chen
- Hanlin College, Nanjing University of Chinese Medicine, Taizhou, 225300 Jiangsu, China
| | - Jie Wang
- Hanlin College, Nanjing University of Chinese Medicine, Taizhou, 225300 Jiangsu, China
| | - Qi-Nan Wu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023 Jiangsu, China
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Yu Q, Yang S, Li Z, Zhu Y, Li Z, Zhang J, Li C, Feng F, Wang W, Zhang Q. The relationship between endoplasmic reticulum stress and autophagy in apoptosis of BEAS-2B cells induced by cigarette smoke condensate. Toxicol Res (Camb) 2021; 10:18-28. [PMID: 33613969 DOI: 10.1093/toxres/tfaa095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 11/02/2020] [Accepted: 11/16/2020] [Indexed: 12/23/2022] Open
Abstract
Cigarette smoke (CS) is one of the severe risk factors for the development of the pulmonary disease. However, the underlying mechanisms, especially the CS-induced the human bronchial epithelial cells (BEAS-2B) apoptosis related to endoplasmic reticulum stress (ERS) and autophagy, remains to be studied. This study aims to investigate the relationship between ERS and autophagy in apoptosis induced by CS condensate (CSC). BEAS-2B cells were stimulated with 0.02, 0.04 and 0.08 mg/ml CSC for 24 h to detect the ERS, autophagy and apoptosis. Then, ERS and autophagy of BEAS-2B cells were inhibited, respectively, by using 4-PBA and 3-MA, and followed by CSC treatment. The results showed that CSC decreased cell viability, increased cell apoptosis, elevated cleaved-caspase 3/pro-caspase 3 ratio and Bax expressions, but decreased Bcl-2 expressions. The GRP78 and CHOP expressions and LC3-II/LC3-I ratio were dose-dependently increased. The structure of the endoplasmic reticulum was abnormal and the number of autolysosomes was increased in BEAS-2B cells after CSC stimulation. The LC3-II/LC3-I ratio was decreased after ERS inhibition with 4-PBA, but GRP78 and CHOP expressions were enhanced after autophagy inhibition with 3-MA. CSC-induced apoptosis was further increased, Bax expressions and cleaved-caspase 3/pro-caspase 3 ratio were improved, but Bcl-2 expressions were decreased after 3-MA or 4-PBA treatment. In conclusion, the study indicates that ERS may repress apoptosis of BEAS-2B cells induced by CSC via activating autophagy, but autophagy relieves ERS in a negative feedback. This study provides better understanding and experimental support on the underlying mechanisms of pulmonary disease stimulated by CS.
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Affiliation(s)
- Qi Yu
- Department of Toxicology, College of Public Health, Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
| | - Sa Yang
- Department of Toxicology, College of Public Health, Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
| | - Zhongqiu Li
- Department of Toxicology, College of Public Health, Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
| | - Yonghang Zhu
- Department of Toxicology, College of Public Health, Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
| | - Zhenkai Li
- Department of Toxicology, College of Public Health, Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
| | - Jiatong Zhang
- Department of Disease Control and Prevention, Hospital of Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
| | - Chunyang Li
- Department of Toxicology, College of Public Health, Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
| | - Feifei Feng
- Department of Toxicology, College of Public Health, Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
| | - Wei Wang
- Department of Occupational and Environmental Health, College of Public Health, Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
| | - Qiao Zhang
- Department of Toxicology, College of Public Health, Zhengzhou University, 100 Kexue Ave, Zhongyuan District, Zhengzhou 450001, China
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Barancik M, Kura B, LeBaron TW, Bolli R, Buday J, Slezak J. Molecular and Cellular Mechanisms Associated with Effects of Molecular Hydrogen in Cardiovascular and Central Nervous Systems. Antioxidants (Basel) 2020; 9:antiox9121281. [PMID: 33333951 PMCID: PMC7765453 DOI: 10.3390/antiox9121281] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/12/2020] [Accepted: 12/13/2020] [Indexed: 02/06/2023] Open
Abstract
The increased production of reactive oxygen species and oxidative stress are important factors contributing to the development of diseases of the cardiovascular and central nervous systems. Molecular hydrogen is recognized as an emerging therapeutic, and its positive effects in the treatment of pathologies have been documented in both experimental and clinical studies. The therapeutic potential of hydrogen is attributed to several major molecular mechanisms. This review focuses on the effects of hydrogen on the cardiovascular and central nervous systems, and summarizes current knowledge about its actions, including the regulation of redox and intracellular signaling, alterations in gene expressions, and modulation of cellular responses (e.g., autophagy, apoptosis, and tissue remodeling). We summarize the functions of hydrogen as a regulator of nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated redox signaling and the association of hydrogen with mitochondria as an important target of its therapeutic action. The antioxidant functions of hydrogen are closely associated with protein kinase signaling pathways, and we discuss possible roles of the phosphoinositide 3-kinase/protein kinase B (PI3K/Akt) and Wnt/β-catenin pathways, which are mediated through glycogen synthase kinase 3β and its involvement in the regulation of cellular apoptosis. Additionally, current knowledge about the role of molecular hydrogen in the modulation of autophagy and matrix metalloproteinases-mediated tissue remodeling, which are other responses to cellular stress, is summarized in this review.
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Affiliation(s)
- Miroslav Barancik
- Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.B.); (B.K.); (T.W.L.)
| | - Branislav Kura
- Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.B.); (B.K.); (T.W.L.)
- Faculty of Medicine, Institute of Physiology, Comenius University in Bratislava, 84215 Bratislava, Slovakia
| | - Tyler W. LeBaron
- Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.B.); (B.K.); (T.W.L.)
- Molecular Hydrogen Institute, Enoch, UT 84721, USA
- Department of Kinesiology and Outdoor Recreation, Southern Utah University, Cedar City, UT 84720, USA
| | - Roberto Bolli
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY 40292, USA;
| | - Jozef Buday
- Department of Psychiatry, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, 12108 Prague, Czech Republic;
| | - Jan Slezak
- Centre of Experimental Medicine, Slovak Academy of Sciences, 84104 Bratislava, Slovakia; (M.B.); (B.K.); (T.W.L.)
- Correspondence: ; Tel.: +42-19-03-620-181
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Shi X, Liu Z, Li J. Protective effects of dexmedetomidine on hypoxia/reoxygenation injury in cardiomyocytes by regulating the CHOP signaling pathway. Mol Med Rep 2020; 22:3307-3315. [PMID: 32945482 PMCID: PMC7453597 DOI: 10.3892/mmr.2020.11442] [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: 09/10/2019] [Accepted: 03/02/2020] [Indexed: 12/20/2022] Open
Abstract
Hypoxia/reoxygenation (H/R) injury in myocardial cells occurs frequently during cardiac surgery and affects the prognosis of patients. The present study aimed to investigate the protective effects of dexmedetomidine (Dex) on H/R injury and its association with the C/EBP-homologous protein (CHOP) signaling pathway. An H/R model was constructed in H9C2 cells to investigate the effects of Dex on H/R injury. Cell viability, apoptosis and lactate dehydrogenase (LDH) levels were determined by MTT, flow cytometry and 2,4-dinitrophenylhydrazine colorimetric assays, respectively. The expression levels of inflammatory factors were measured by reverse transcription-quantitative PCR (RT-qPCR), and CHOP and glucose-regulated protein-78 (Grp78) expression levels were detected by RT-qPCR and western blotting. CHOP was overexpressed or knocked down to detect the cell viability, apoptosis, LDH level and the expression levels of inflammatory factors and Grp78. The results demonstrated that in the H/R group, cell viability was lower and apoptosis was higher, and that higher levels of LDH and inflammatory factors were present compared with those in the Dex+H/R group. Silencing of CHOP significantly reversed the H/R-reduced cell viability, high apoptotic rate and LDH levels, as well as the elevated expression levels of inflammatory factors and Grp78 caused by H/R injury, whereas the overexpression of CHOP inhibited cell viability and promoted apoptosis, elevated LDH level and expression of inflammatory factors and Grp78 compared with the negative control. Additionally, pretreatment with Dex significantly alleviated the H/R injury; thus, Dex may protect H9C2 cells against H/R induced cell injury, possibly by suppressing the CHOP signaling pathway.
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Affiliation(s)
- Xiaoqiao Shi
- Department of Anesthesiology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Zhiwen Liu
- Department of Anesthesiology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Junwei Li
- Department of Anesthesiology, The Second Affiliated Hospital of Hunan University of Traditional Chinese Medicine, Changsha, Hunan 410005, P.R. China
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Bartoszewska S, Collawn JF. Unfolded protein response (UPR) integrated signaling networks determine cell fate during hypoxia. Cell Mol Biol Lett 2020; 25:18. [PMID: 32190062 PMCID: PMC7071609 DOI: 10.1186/s11658-020-00212-1] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 02/26/2020] [Indexed: 02/06/2023] Open
Abstract
During hypoxic conditions, cells undergo critical adaptive responses that include the up-regulation of hypoxia-inducible proteins (HIFs) and the induction of the unfolded protein response (UPR). While their induced signaling pathways have many distinct targets, there are some important connections as well. Despite the extensive studies on both of these signaling pathways, the exact mechanisms involved that determine survival versus apoptosis remain largely unexplained and therefore beyond therapeutic control. Here we discuss the complex relationship between the HIF and UPR signaling pathways and the importance of understanding how these pathways differ between normal and cancer cell models.
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Affiliation(s)
- Sylwia Bartoszewska
- Department of Inorganic Chemistry, Medical University of Gdansk, Gdansk, Poland
| | - James F. Collawn
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, USA
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Díaz-Bulnes P, Saiz ML, López-Larrea C, Rodríguez RM. Crosstalk Between Hypoxia and ER Stress Response: A Key Regulator of Macrophage Polarization. Front Immunol 2020; 10:2951. [PMID: 31998288 PMCID: PMC6961549 DOI: 10.3389/fimmu.2019.02951] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 12/02/2019] [Indexed: 12/29/2022] Open
Abstract
Macrophage activation and polarization are closely linked with metabolic rewiring, which is required to sustain their biological functions. These metabolic alterations allow the macrophages to adapt to the microenvironment changes associated with inflammation or tissue damage (hypoxia, nutrient imbalance, oxidative stress, etc.) and to fulfill their highly energy-demanding proinflammatory and anti-microbial functions. This response is integrated via metabolic sensors that coordinate these metabolic fluxes with their functional requirements. Here we review how the metabolic and phenotypic plasticity of macrophages are intrinsically connected with the hypoxia stress sensors and the unfolded protein response in the endoplasmic reticulum, and how these molecular pathways participate in the maladaptive polarization of macrophages in human pathology and chronic inflammation.
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Affiliation(s)
- Paula Díaz-Bulnes
- Translational Immunology Laboratory, Health Research Institute of the Principality of Asturias, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - María Laura Saiz
- Translational Immunology Laboratory, Health Research Institute of the Principality of Asturias, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Carlos López-Larrea
- Translational Immunology Laboratory, Health Research Institute of the Principality of Asturias, Hospital Universitario Central de Asturias, Oviedo, Spain.,Immunology Service, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Ramón M Rodríguez
- Translational Immunology Laboratory, Health Research Institute of the Principality of Asturias, Hospital Universitario Central de Asturias, Oviedo, Spain
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