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Gao D, Ma T, Gao L, Zhang J, Zhang H, Zhang L, Dong H, Li Y, Zhao L, Liu W, Zhao H, Li D, Zhou D, Wang A, Jin Y, Chen H. Autophagy activation attenuates the circadian clock oscillators in U2OS cells via the ATG5 pathway. Cell Signal 2023; 101:110502. [PMID: 36280090 DOI: 10.1016/j.cellsig.2022.110502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/30/2022] [Accepted: 10/17/2022] [Indexed: 11/28/2022]
Abstract
The circadian clock and autophagy are essential biological mechanisms involved in regulating many physiological processes. Accumulating evidence has revealed that autophagic activity is regulated by the circadian clock system. However, whether autophagy regulates the circadian clock system remains unclear. In this study, rapamycin and AICAR, two classical activators of autophagy, were used to create autophagy activation models in BMAL1-dLuc U2OS cell line. The results showed that the mRNA expression of MAP1LC3B and ATG5 were significantly upregulated after autophagy activation, whereas the mRNA expression of circadian clock genes (BMAL1, PER2, REV-ERBα, and DBP) were significantly decreased. Consistent with these data, the relative ratio of LC3-II/LC3-I and the protein level of ATG5 were increased after rapamycin or AICAR treatment. In contrast, BMAL1 and REV-ERBα levels were decreased. Notably, the mRNA expression of circadian clock genes (BMAL1, PER2, REV-ERBα, and DBP) and autophagy-related genes (MAP1LC3B and ATG5) showed rhythmic expression patterns in both untreated and rapamycin/AICAR-treated U2OS cells. Moreover, the autophagy inhibitor 3-methyladenine partially reversed the inhibitory effects of autophagy on circadian clock genes expression and BMAL1-Luc oscillations. Another critical finding was that ATG5 knockout alleviates the inhibitory effect of rapamycin-mediated autophagy activation on the circadian clock oscillators in U2OS cells. Collectively, our data indicate that autophagy activation attenuates the circadian clock oscillators in U2OS cells via the ATG5 pathway.
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Affiliation(s)
- Dengke Gao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Tiantian Ma
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Lei Gao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China; College of Agriculture and Animal Husbandry, Qing Hai University, Xining, Qinghai, China
| | - Jing Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Haisen Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Linlin Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Hao Dong
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yating Li
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Lijia Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Wei Liu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Hongcong Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Dan Li
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Dong Zhou
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Aihua Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China; Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yaping Jin
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Huatao Chen
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Role of PI3K/Akt signaling pathway in cardiac fibrosis. Mol Cell Biochem 2021; 476:4045-4059. [PMID: 34244974 DOI: 10.1007/s11010-021-04219-w] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/29/2021] [Indexed: 12/26/2022]
Abstract
Heart failure (HF) is considered as a severe health problem worldwide, while cardiac fibrosis is one of the main driving factors for the progress of HF. Cardiac fibrosis was characterized by changes in cardiomyocytes, cardiac fibroblasts, ratio of collagen (COL) I/III, and the excessive production and deposition of extracellular matrix (ECM), thus forming a scar tissue, which leads to pathological process of cardiac structural changes and systolic as well as diastolic dysfunction. Cardiac fibrosis is a common pathological change of many advanced cardiovascular diseases including ischemic heart disease, hypertension, and HF. Accumulated studies have proven that phosphoinositol-3 kinase (PI3K)/Akt signaling pathway is involved in regulating the occurrence, progression and pathological formation of cardiac fibrosis via regulating cell survival, apoptosis, growth, cardiac contractility and even the transcription of related genes through a series of molecules including mammalian target of rapamycin (mTOR), glycogen synthase kinase 3 (GSK-3), forkhead box proteins O1/3 (FoxO1/3), and nitric oxide synthase (NOS). Thus, the review focuses on the role of PI3K/Akt signaling pathway in the cardiac fibrosis. The information reviewed here should be significant in understanding the role of PI3K/Akt in cardiac fibrosis and contribute to the design of further studies related to PI3K/Akt and the cardiac fibrotic response, as well as sought to shed light on a potential treatment for cardiac fibrosis.
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Guo Z, Yu B, Li X, Yang X, Wang C, Fan L. Circadian misalignment promotes vascular smooth muscle cell apoptosis via defective autophagy. J Mol Histol 2021; 52:799-808. [PMID: 34131827 DOI: 10.1007/s10735-021-10000-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 06/12/2021] [Indexed: 01/28/2023]
Abstract
Defective autophagy in vascular smooth muscle cells (VSMCs) in response to oxidative stress can lead to cellular apoptosis and plaque instability. Previous studies have revealed that the circadian clock system is involved in autophagic regulation and plaque progression. However, the mechanism by which circadian rhythmicity influences VSMC autophagy and plaque stability remains unclear. Our study described the circadian profiles in atheromatous plaques and verified the role of circadian misalignment in VSMC autophagy and apoptosis. We found that the mRNA expression levels of circadian locomotor output cycles protein kaput (CLOCK) and Beclin 1 were significantly decreased in unstable plaques compared with stable plaques. No significant differences were observed in other circadian rhythm genes. VSMCs treated with oxidized low-density lipoprotein (ox-LDL, 80 μg/ml) exhibited abnormal circadian rhythmicity and impaired autophagy, as evidenced by consistent decreases in CLOCK and Beclin 1 expression, suggesting a correlation between CLOCK and autophagy. CLOCK protein expression was inhibited by ox-LDL, accompanied by defective autophagy and an increased apoptosis rates (P < 0.05). Administration of rapamycin (10 nM) reversed the effect of ox-LDL on VSMC autophagy and apoptosis. Finally, CLOCK silencing led to a considerable decrease in autophagy. VSMCs with stable CLOCK silencing also showed an increased apoptosis rate. In addition, gene silencing of CLOCK in VSMCs counteracted the effects of moderate rapamycin concentrations on autophagy and apoptosis. In conclusion, these findings suggested that the CLOCK-dependent rapamycin signaling pathway is a critical mediator in ox-LDL-induced VSMCs with defective autophagy that exacerbates plaque destabilization.
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Affiliation(s)
- Zhenyu Guo
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, 1158 Park Road, Qingpu, Shanghai, 201700, China
| | - Baixue Yu
- Biomedical Research Centre, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Xu Li
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, 1158 Park Road, Qingpu, Shanghai, 201700, China
| | - Xiaohu Yang
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, 1158 Park Road, Qingpu, Shanghai, 201700, China
| | - Chen Wang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Longhua Fan
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, 1158 Park Road, Qingpu, Shanghai, 201700, China. .,Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
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Hasuoka PE, Iglesias JP, Teves M, Kaplan MM, Ferrúa NH, Pacheco PH. Selenomethionine administration decreases the oxidative stress induced by post mortem ischemia in the heart, liver and kidneys of rats. Biometals 2021; 34:831-840. [PMID: 33913063 DOI: 10.1007/s10534-021-00310-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/19/2021] [Indexed: 11/28/2022]
Abstract
Selenium is an essential element in human and animal metabolism integrated into the catalytic site of glutathione peroxidase (GPX1), an antioxidant enzyme that protects cells from damage caused by reactive oxygen species (ROS). Oxidative stress refers the imbalance between ROS and antioxidant defense systems. It generates alterations of DNA, proteins and lipid peroxidation. The imbalance occurs particularly during ischemia and lack of postmortem perfusion. This mechanism is of relevance in transplant organs, affecting their survival. The aim of this research is to evaluate the effect of seleno-methionine (SeMet) as a protective agent against postmortem ischemia injury in transplant organs. Wistar rats were orally administered with SeMet. After sacrifice, liver, heart and kidney samples were collected at different postmortem intervals (PMIs). SeMet administration produced a significant increase of Se concentration in the liver (65%, p < 0.001), heart (40%, p < 0.01) and kidneys (45%, p < 0.05). Levels of the oxidative stress marker malondialdehyde (MDA) decreased significantly compared to control in the heart (0.21 ± 0.04 vs. 0.12 ± 0.02 mmol g-1) and kidneys (0.41 ± 0.02 vs. 0.24 ± 0.03 mmol g-1) in a PMI of 1-12 h (p < 0.01). After SeMet administration for 21 days, a significant increase in GPX1 activity was observed in the liver (80%, p < 0.001), kidneys (74%, p < 0.01) and heart (35%, p < 0.05). SeMet administration to rats significantly decreased the oxidative stress in the heart, liver and kidneys of rats generated by postmortem ischemia.
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Affiliation(s)
- Paul E Hasuoka
- Instituto de Química San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, 5700, San Luis, Argentina
| | - Juan P Iglesias
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700, San Luis, Argentina
| | - Mauricio Teves
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700, San Luis, Argentina
| | - Marcos M Kaplan
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700, San Luis, Argentina
| | - Nelson H Ferrúa
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700, San Luis, Argentina
| | - Pablo H Pacheco
- Instituto de Química San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, 5700, San Luis, Argentina.
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Xu J, Jiang JK, Li XL, Yu XP, Xu YG, Lu YQ. Comparative transcriptomic analysis of vascular endothelial cells after hypoxia/re-oxygenation induction based on microarray technology. J Zhejiang Univ Sci B 2021; 21:291-304. [PMID: 32253839 DOI: 10.1631/jzus.b2000043] [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: 11/11/2022]
Abstract
OBJECTIVE To provide comprehensive data to understand mechanisms of vascular endothelial cell (VEC) response to hypoxia/re-oxygenation. METHODS Human umbilical vein endothelial cells (HUVECs) were employed to construct hypoxia/re-oxygenation-induced VEC transcriptome profiling. Cells incubated under 5% O2, 5% CO2, and 90% N2 for 3 h followed by 95% air and 5% CO2 for 1 h were used in the hypoxia/re-oxygenation group. Those incubated only under 95% air and 5% CO2 were used in the normoxia control group. RESULTS By using a well-established microarray chip consisting of 58 339 probes, the study identified 372 differentially expressed genes. While part of the genes are known to be VEC hypoxia/re-oxygenation-related, serving as a good control, a large number of genes related to VEC hypoxia/re-oxygenation were identified for the first time. Through bioinformatic analysis of these genes, we identified that multiple pathways were involved in the reaction. Subsequently, we applied real-time polymerase chain reaction (PCR) and western blot techniques to validate the microarray data. It was found that the expression of apoptosis-related proteins, like pleckstrin homology-like domain family A member 1 (PHLDA1), was also consistently up-regulated in the hypoxia/re-oxygenation group. STRING analysis found that significantly differentially expressed genes SLC38A3, SLC5A5, Lnc-SLC36A4-1, and Lnc-PLEKHJ1-1 may have physical or/and functional protein-protein interactions with PHLDA1. CONCLUSIONS The data from this study have built a foundation to develop many hypotheses to further explore the hypoxia/re-oxygenation mechanisms, an area with great clinical significance for multiple diseases.
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Affiliation(s)
- Jia Xu
- Department of Emergency Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Department of Geriatric Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jiu-Kun Jiang
- Department of Emergency Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Department of Geriatric Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Xiao-Lin Li
- Department of Emergency Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Department of Geriatric Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Xiao-Peng Yu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Ying-Ge Xu
- Department of Emergency Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Department of Geriatric Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Yuan-Qiang Lu
- Department of Emergency Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Department of Geriatric Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
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Cherubini JM, Cheng JL, Williams JS, MacDonald MJ. Sleep deprivation and endothelial function: reconciling seminal evidence with recent perspectives. Am J Physiol Heart Circ Physiol 2020; 320:H29-H35. [PMID: 33064569 DOI: 10.1152/ajpheart.00607.2020] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Sleep is critical for the maintenance of physiological homeostasis and, as such, inadequate sleep beckons a myriad of pathologies. Sleep deprivation is a growing health concern in contemporary society since short sleep durations are associated with increased cardiovascular disease risk and atherosclerotic plaque development. Vascular endothelial dysfunction is an antecedent to atherosclerosis and cardiovascular disease. Herein, we review seminal literature indicating that short sleep durations attenuate endothelial function and explore more recent evidence indicating that sleep deprivation perturbs autonomic balance and the circadian rhythmicity of peripheral vascular clock components. We further examine literature that indicates a mechanistic link between short sleep duration and endothelial dysfunction and subsequent morbidity. Understanding the mechanisms that regulate endothelial function in the context of sleep deprivation facilitates the development and optimization of interventions, such as exercise, that mitigate the ramifications of inadequate sleep on vascular function and cardiovascular health.Listen to this article's corresponding podcast at https://ajpheart.podbean.com/e/sleep-deprivation-and-endothelial-function/.
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Affiliation(s)
| | - Jem L Cheng
- Vascular Dynamics Lab, McMaster University, Hamilton, Ontario, Canada
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7
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Sánchez-Martín P, Komatsu M. Physiological Stress Response by Selective Autophagy. J Mol Biol 2020; 432:53-62. [DOI: 10.1016/j.jmb.2019.06.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/05/2019] [Accepted: 06/09/2019] [Indexed: 01/06/2023]
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8
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Zhao YL, Zhang X, Liu WW, Yang YT, Gao ZK, Liu XL, Liu W, Hayashi T, Yamato M, Fujisaki H, Hattori S, Mizuno K, Atsuzawa Y, Tashiro SI, Onodera S, Ikejima T. Reactive oxygen species are responsible for the cell aggregation and production of pro-inflammatory mediators in phorbol ester (PMA)-treated U937 cells on gelatin-coated dishes through upregulation of autophagy. Connect Tissue Res 2019; 60:323-334. [PMID: 30277081 DOI: 10.1080/03008207.2018.1530770] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Purpose: Our previous studies indicate that phorbol 12-myristate 13-acetate (PMA)-treated U937 cells cultured on collagen I-coated dishes express lowered production of pro-inflammatory mediators in parallel through reduced reactive oxygen species (ROS) levels. By contrast, PMA-treated U937 cells on gelatin, the denatured collagen, show enhanced production of pro-inflammatory mediators, mediated by up-regulating autophagy levels. The present study is aimed to investigate the effect of ROS levels in PMA-treated U937 cells cultured on gelatin-coated surface. Material and methods: MTT assay, flow cytometric analysis of ROS and autophagy, biochemical detection of antioxidant levels, enzyme-linked immunosorbent assay, and western blot were used. Results: Gelatin-coating increased ROS levels in PMA-treated U937 cells. Increased ROS levels are involved in the regulation of cell aggregation and the release of pro-inflammatory mediators in gelatin-coated culture. These results lead to the query about the crosstalk between the two positive regulators, the autophagy and ROS. Autophagy induction is attenuated by N-acetyl-L-cysteine treatment, but the treatment with autophagy inhibitor, 3-methyladenine, does not affect ROS levels, suggesting ROS are upstream of autophagy in the regulation axis of differentiated U937 cells on gelatin-coated surface. Further study confirmed that upregulation of autophagy was responsible for ROS-induced cell aggregation and production of pro-inflammatory mediators. Conclusion: The results suggest that gelatin-coating promotes the aggregation of PMA-treated U937 cells and the production of pro-inflammatory mediators by ROS-autophagy signaling pathway.
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Affiliation(s)
- Ye-Li Zhao
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Xuan Zhang
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Wei-Wei Liu
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Yu-Ting Yang
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Zhuo-Kun Gao
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Xiao-Ling Liu
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Wei Liu
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Toshihiko Hayashi
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
| | - Masayuki Yamato
- b Institute of Advanced Biomedical Engineering and Science , Tokyo Women's Medical University , Tokyo , Japan
| | - Hitomi Fujisaki
- c Nippi Research Institute of Biomatrix , Toride, Ibaraki , Japan
| | - Shunji Hattori
- c Nippi Research Institute of Biomatrix , Toride, Ibaraki , Japan
| | - Kazunori Mizuno
- c Nippi Research Institute of Biomatrix , Toride, Ibaraki , Japan
| | - Yuji Atsuzawa
- c Nippi Research Institute of Biomatrix , Toride, Ibaraki , Japan
| | - Shin-Ichi Tashiro
- d Department of Medical Education and Primary Care , Kyoto Prefectural University of Medicine , Kyoto , Japan
| | - Satoshi Onodera
- e Department of Clinical and Pharmaceutical Sciences , Showa Pharmaceutical University , Tokyo , Japan
| | - Takashi Ikejima
- a China-Japan Research Institute of Medical and Pharmaceutical Sciences , Shenyang Pharmaceutical University , Shenyang , China
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Qi F, Li X, Peng B, Hou W, Yu H, Li X, Yang S, Jiang Z, Cheng S, Liu Y, Wang Y, Xiao J, Guo H, Wang Z. The impaction of clock-knockdown on autophagy in 4T1 breast cancer cells. BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2018.1548879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Fang Qi
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Xiaoxue Li
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Bo Peng
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Wang Hou
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Hang Yu
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Xuepei Li
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Shuhong Yang
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Zhou Jiang
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Shuting Cheng
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Yanyou Liu
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Yuhui Wang
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Jing Xiao
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Huiling Guo
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Zhengrong Wang
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
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10
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Bhogal RH, Weston CJ, Velduis S, G D Leuvenink H, Reynolds GM, Davies S, Nyguet-Thin L, Alfaifi M, Shepard EL, Boteon Y, Wallace L, Oo YH, Adams DH, Mirza DF, Mergental H, Muirhead G, Stephenson BTF, Afford SC. The Reactive Oxygen Species-Mitophagy Signaling Pathway Regulates Liver Endothelial Cell Survival During Ischemia/Reperfusion Injury. Liver Transpl 2018; 24:1437-1452. [PMID: 30040176 DOI: 10.1002/lt.25313] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 04/29/2018] [Accepted: 06/04/2018] [Indexed: 12/12/2022]
Abstract
Ischemia/reperfusion injury (IRI) is the main cause of complications following liver transplantation. Reactive oxygen species (ROS) were thought to be the main regulators of IRI. However, recent studies demonstrate that ROS activate the cytoprotective mechanism of autophagy promoting cell survival. Liver IRI initially damages the liver endothelial cells (LEC), but whether ROS-autophagy promotes cell survival in LEC during IRI is not known. Primary human LEC were isolated from human liver tissue and exposed to an in vitro model of IRI to assess the role of autophagy in LEC. The role of autophagy during liver IRI in vivo was assessed using a murine model of partial liver IRI. During IRI, ROS specifically activate autophagy-related protein (ATG) 7 promoting autophagic flux and the formation of LC3B-positive puncta around mitochondria in primary human LEC. Inhibition of ROS reduces autophagic flux in LEC during IRI inducing necrosis. In addition, small interfering RNA knockdown of ATG7 sensitized LEC to necrosis during IRI. In vivo murine livers in uninjured liver lobes demonstrate autophagy within LEC that is reduced following IRI with concomitant reduction in autophagic flux and increased cell death. In conclusion, these findings demonstrate that during liver IRI ROS-dependent autophagy promotes the survival of LEC, and therapeutic targeting of this signaling pathway may reduce liver IRI following transplantation.
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Affiliation(s)
- Ricky H Bhogal
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
- The Liver Unit, University Hospitals of Birmingham, New Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Christopher J Weston
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Susanne Velduis
- University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Henri G D Leuvenink
- University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Gary M Reynolds
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Scott Davies
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Luu Nyguet-Thin
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Mohammed Alfaifi
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Emma L Shepard
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Yuri Boteon
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Lorraine Wallace
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Ye H Oo
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - David H Adams
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Darius F Mirza
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
- The Liver Unit, University Hospitals of Birmingham, New Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Hynek Mergental
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
- The Liver Unit, University Hospitals of Birmingham, New Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Gillian Muirhead
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Barnaby T F Stephenson
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
| | - Simon C Afford
- Centre for Liver Research, School of Infection and Immunity, Institute for Biomedical Research, The Medical School, Birmingham, United Kingdom
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11
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A Positive Feedback Loop of Profilin-1 and RhoA/ROCK1 Promotes Endothelial Dysfunction and Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:4169575. [PMID: 29849894 PMCID: PMC5904805 DOI: 10.1155/2018/4169575] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 02/12/2018] [Indexed: 12/11/2022]
Abstract
Vascular endothelial dysfunction is considered critical development in the progression of cardiovascular events and is associated with vascular damage and oxidative stress. Previous studies have shown that profilin-1 could be induced by advanced glycation end products (AGEs) and contributes to vascular hyperpermeability; however, the mechanisms are not fully understood. In this study, we sought to assess whether reactive oxygen species (ROS) were involved in profilin-1-mediated RhoA/ROCK1 signaling. Treatment with AGEs significantly induced the expression of profilin-1 and ROS production in human umbilical vein endothelial cells (HUVECs), whereas knockdown of profilin-1 diminished AGE-induced RhoA and ROCK1 activation and ROS production. Moreover, ectopic overexpression of profilin-1 also increased RhoA and ROCK1 activation and ROS production under low AGE concentration. Furthermore, blockage of RhoA/ROCK1 with the inhibitors CT04 and Y27632 significantly attenuated the profilin-1-mediated cell damage and ROS production. Additionally, ROS inhibition resulted in a significant decrease in profilin-1-mediated RhoA/ROCK1 expression, suggesting that the regulation of RhoA/ROCK1 signaling was partly independent of ROS. Taken together, these results suggested that the RhoA/ROCK1 pathway activated by excessive ROS is responsible for profilin-1-mediated endothelial damage.
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12
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Zhao YL, Liu WW, Liu W, Lu ZY, Xuan DH, Zhang X, Liu XL, Hayashi T, Yamato M, Ogura T, Fujisaki H, Hattori S, Tashiro SI, Onodera S, Ikejima T. Phorbol ester (PMA)-treated U937 cells cultured on type I collagen-coated dish express a lower production of pro-inflammatory cytokines through lowered ROS levels in parallel with cell aggregate formation. Int Immunopharmacol 2017; 55:158-164. [PMID: 29253822 DOI: 10.1016/j.intimp.2017.12.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 12/10/2017] [Accepted: 12/12/2017] [Indexed: 01/20/2023]
Abstract
The present study is aimed to investigate the effect of collagen I on U937 cells, human monocyte-like histiocytic lymphoma cell line. Differentiation of U937 cells was induced by phorbol ester (PMA) treatment. The cells were cultured on the collagen I-coated plate. PMA-stimulated U937 cells formed multicellular aggregates on collagen I-coated surface, whereas PMA-unstimulated cells kept themselves away off each other. Moreover, the levels of reactive oxygen species (ROS) and productions of pro-inflammatory cytokines such as IL-1β, TNFα and PGE2, pro-inflammatory mediator, were down-regulated in differentiated U937 cells cultured on collagen I-coated dishes. However, collagen I did not influence the capacity of E. coli phagocytosis. Cell aggregation as well as the down-regulation of IL-1β, TNFα and PGE2 caused by the culture on collagen I-coated surface were suppressed by ROS donor, tert-butylhydroperoxide (tBHP). The sizes of cell aggregates became bigger in differentiated U937 cells by treatment with ROS scavengers such as N-acetylcysteine (NAC), superoxide dismutase (SOD), catalase (CAT) and glutathione (GSH). In conclusion, collagen I-coated culture induces the differentiated U937 cells to form cell aggregates and decreases the production of pro-inflammatory cytokines through down-regulating ROS generation.
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Affiliation(s)
- Ye-Li Zhao
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Wei-Wei Liu
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Wei Liu
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhuo-Yu Lu
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Di-Hong Xuan
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xuan Zhang
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiao-Ling Liu
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Toshihiko Hayashi
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Masayuki Yamato
- Waseda University Joint Institution for Advanced Biomedical Sciences, Tokyo Women's Medical University, Tokyo 162-8666, Japan
| | - Takaaki Ogura
- Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Hitomi Fujisaki
- Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Shunji Hattori
- Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Shin-Ichi Tashiro
- Department of Medical Education and Primary Care, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Satoshi Onodera
- Department of Clinical and Pharmaceutical Sciences, Showa Pharmaceutical University, Tokyo 194-8543, Japan
| | - Takashi Ikejima
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China.
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13
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Li D, Zhao K, Yang X, Xiao X, Tang S. TCS2 Increases Olaquindox-Induced Apoptosis by Upregulation of ROS Production and Downregulation of Autophagy in HEK293 Cells. Molecules 2017; 22:E595. [PMID: 28387735 PMCID: PMC6154664 DOI: 10.3390/molecules22040595] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 03/31/2017] [Accepted: 04/06/2017] [Indexed: 11/16/2022] Open
Abstract
Olaquindox, a feed additive, has drawn public attention due to its potential mutagenicity, genotoxicity, hepatoxicity and nephrotoxicity. The purpose of this study was to investigate the role of tuberous sclerosis complex (TSC2) pathways in olaquindox-induced autophagy in human embryonic kidney 293 (HEK293) cells. The results revealed that olaquindox treatment reduced the cell viability of HEK293 cells and downregulated the expression of TSC2 in a dose- and time-dependent manner. Meanwhile, olaquindox treatment markedly induced the production of reactive oxygen species (ROS), cascaded to autophagy, oxidative stress, and apoptotic cell death, which was effectively eliminated by the antioxidant N-acetylcysteine (NAC). Furthermore, overexpression of TSC2 attenuated olaquindox-induced autophagy in contrast to inducing the production of ROS, oxidative stress and apoptosis. Consistently, knockdown of TSC2 upregulated autophagy, and decreased olaquindox-induced cell apoptosis. In conclusion, our findings indicate that TSC2 partly participates in olaquindox-induced autophagy, oxidative stress and apoptosis, and demonstrate that TSC2 has a negative regulation role in olaquindox-induced autophagy in HEK293 cells.
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Affiliation(s)
- Daowen Li
- College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China.
| | - Kena Zhao
- College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China.
| | - Xiayun Yang
- College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China.
| | - Xilong Xiao
- College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China.
| | - Shusheng Tang
- College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China.
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