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Sun F, Wang J, Meng L, Zhou Z, Xu Y, Yang M, Li Y, Jiang T, Liu B, Yan H. AdipoRon promotes amyloid-β clearance through enhancing autophagy via nuclear GAPDH-induced sirtuin 1 activation in Alzheimer's disease. Br J Pharmacol 2024. [PMID: 38679474 DOI: 10.1111/bph.16400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 02/28/2024] [Accepted: 03/21/2024] [Indexed: 05/01/2024] Open
Abstract
BACKGROUND AND PURPOSE Amyloid-β (Aβ) peptide is one of the more important pathological markers in Alzheimer's disease (AD). The development of AD impairs autophagy, which results in an imbalanced clearance of Aβ. Our previous research demonstrated that AdipoRon, an agonist of adiponectin receptors, decreased the deposition of Aβ and enhanced cognitive function in AD. However, the exact mechanisms by which AdipoRon affects Aβ clearance remain unclear. EXPERIMENTAL APPROACH We studied how AdipoRon affects autophagy in HT22 cells and APP/PS1 transgenic mice. We also investigated the signalling pathway involved and used pharmacological inhibitors to examine the role of autophagy in this process. KEY RESULTS AdipoRon promotes Aβ clearance by activating neuronal autophagy in the APP/PS1 transgenic mice. Interestingly, we found that AdipoRon induces the nuclear translocation of GAPDH, where it interacts with the SIRT1/DBC1 complex. This interaction then leads to the release of DBC1 and the activation of SIRT1, which in turn activates autophagy. Importantly, we found that inhibiting either GAPDH or SIRT1 to suppress the activity of SIRT1 counteracts the elevated autophagy and decreased Aβ deposition caused by AdipoRon. This suggests that SIRT1 plays a critical role in the effect of AdipoRon on autophagic induction in AD. CONCLUSION AND IMPLICATIONS AdipoRon promotes the clearance of Aβ by enhancing autophagy through the AdipoR1/AMPK-dependent nuclear translocation of GAPDH and subsequent activation of SIRT1. This novel molecular pathway sheds light on the modulation of autophagy in AD and may lead to the development of new therapeutic strategies targeting this pathway.
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Affiliation(s)
- Fengjiao Sun
- Medical Research Center, Binzhou Medical University Hospital, Binzhou, China
- Department of Pharmacology, School of Basic Medicine, Binzhou Medical University, Yantai, China
| | - Jiangong Wang
- Medical Research Center, Binzhou Medical University Hospital, Binzhou, China
- Department of Pharmacology, School of Basic Medicine, Binzhou Medical University, Yantai, China
| | - Lingbin Meng
- Department of Pharmacology, School of Basic Medicine, Binzhou Medical University, Yantai, China
| | - Zhenyu Zhou
- Department of Pharmacology, School of Basic Medicine, Binzhou Medical University, Yantai, China
| | - Yong Xu
- Department of Pharmacology, School of Basic Medicine, Binzhou Medical University, Yantai, China
| | - Meizi Yang
- Department of Pharmacology, School of Basic Medicine, Binzhou Medical University, Yantai, China
| | - Yixin Li
- Department of Pharmacology, School of Basic Medicine, Binzhou Medical University, Yantai, China
| | - Tianrui Jiang
- Department of Pharmacology, School of Basic Medicine, Binzhou Medical University, Yantai, China
| | - Bin Liu
- Medical Research Center, Binzhou Medical University Hospital, Binzhou, China
| | - Haijing Yan
- Medical Research Center, Binzhou Medical University Hospital, Binzhou, China
- Department of Pharmacology, School of Basic Medicine, Binzhou Medical University, Yantai, China
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Sung HK, Tang J, Jahng JWS, Song E, Chan YK, Lone AH, Peterson J, Abdul‐Sater A, Sweeney G. Ischemia-induced cardiac dysfunction is exacerbated in adiponectin-knockout mice due to impaired autophagy flux. Clin Transl Sci 2024; 17:e13758. [PMID: 38515365 PMCID: PMC10958170 DOI: 10.1111/cts.13758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/23/2024] [Accepted: 02/14/2024] [Indexed: 03/23/2024] Open
Abstract
Strategies to enhance autophagy flux have been suggested to improve outcomes in cardiac ischemic models. We explored the role of adiponectin in mediating cardiac autophagy under ischemic conditions induced by permanent coronary artery ligation. We studied the molecular mechanisms underlying adiponectin's cardio-protective effects in adiponectin knockout (Ad-KO) compared with wild-type (WT) mice subjected to ischemia by coronary artery ligation and H9c2 cardiomyocyte cell line exposed to hypoxia. Systemic infusion of a cathepsin-B activatable near-infrared probe as a biomarker for autophagy and detection via noninvasive three-dimensional fluorescence molecular tomography combined with computerized tomography to quantitate temporal changes, indicated increased activity in the myocardium of WT mice after myocardial infarction which was attenuated in Ad-KO. Seven days of ischemia increased myocardial adiponectin accumulation and elevated ULK1/AMPK phosphorylation and autophagy assessed by Western blotting for LC3 and p62, an outcome not observed in Ad-KO mice. Cell death, assessed by TUNEL analysis and the ratio of Bcl-2:Bax, plus cardiac dysfunction, measured using echocardiography with strain analysis, were exacerbated in Ad-KO mice. Using cellular models, we observed that adiponectin stimulated autophagy flux in isolated primary adult cardiomyocytes and increased basal and hypoxia-induced autophagy in H9c2 cells. Real-time temporal analysis of caspase-3/7 activation and caspase-3 Western blot indicated that adiponectin suppressed activation by hypoxia. Hypoxia-induced mitochondrial reactive oxygen species production and cell death were also attenuated by adiponectin. Importantly, the ability of adiponectin to reduce caspase-3/7 activation and cell death was not observed in autophagy-deficient cells generated by CRISPR-mediated deletion of Atg7. Collectively, our data indicate that adiponectin acts in an autophagy-dependent manner to attenuate cardiomyocyte caspase-3/7 activation and cell death in response to hypoxia in vitro and ischemia in mice.
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Affiliation(s)
| | - Jialing Tang
- Department of BiologyYork UniversityTorontoOntarioCanada
| | | | - Erfei Song
- Department of BiologyYork UniversityTorontoOntarioCanada
| | - Yee Kwan Chan
- Department of BiologyYork UniversityTorontoOntarioCanada
| | | | | | - Ali Abdul‐Sater
- School of Kinesiology and Health ScienceYork UniversityTorontoOntarioCanada
| | - Gary Sweeney
- Department of BiologyYork UniversityTorontoOntarioCanada
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3
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Liao W, Wen Y, Zeng C, Yang S, Duan Y, He C, Liu Z. Integrative analyses and validation of ferroptosis-related genes and mechanisms associated with cerebrovascular and cardiovascular ischemic diseases. BMC Genomics 2023; 24:731. [PMID: 38049739 PMCID: PMC10694919 DOI: 10.1186/s12864-023-09829-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/22/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND There has been a gradual increase in the occurrence of cardiovascular and cerebrovascular ischemic diseases, particularly as comorbidities. Yet, the mechanisms underlying these diseases remain unclear. Ferroptosis has emerged as a potential contributor to cardio-cerebral ischemic processes. Therefore, this study investigated the shared biological mechanisms between the two processes, as well as the role of ferroptosis genes in cardio-cerebral ischemic damage, by constructing co-expression modules for myocardial ischemia (MI) and ischemic stroke (IS) and a network of protein-protein interactions, mRNA-miRNA, mRNA-transcription factors (TFs), mRNA-RNA-binding proteins (RBPs), and mRNA-drug interactions. RESULTS The study identified seven key genes, specifically ACSL1, TLR4, ADIPOR1, G0S2, PDK4, HP, PTGS2, and subjected them to functional enrichment analysis during ischemia. The predicted miRNAs were found to interact with 35 hub genes, and interactions were observed between 11 hub genes and 30 TF transcription factors. Additionally, 10 RBPs corresponding to 16 hub genes and 163 molecular compounds corresponding to 30 hub genes were identified. This study also clarified the levels of immune infiltration between MI and IS and different subtypes. Finally, we identified four hub genes, including TLR4, by using a diagnostic model constructed by Least Absolute Shrinkage and Selection Operator (LASSO) regression analysis; ADIPOR1, G0S2, and HP were shown to have diagnostic value for the co-pathogenesis of MI and cerebral ischemia by both validation test data and RT-qPCR assay. CONCLUSIONS To the best our knowledge, this study is the first to utilize multiple algorithms to comprehensively analyze the biological processes of MI and IS from various perspectives. The four hub genes, TLR4, ADIPOR1, G0S2, and HP, have proven valuable in offering insights for the investigation of shared injury pathways in cardio-cerebral injuries. Therefore, these genes may serve as diagnostic markers for cardio-cerebral ischemic diseases.
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Affiliation(s)
- Wei Liao
- Department of Neurosurgery, First Affiliated of Gannan Medical University, Ganzhou, Jiangxi, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Yuehui Wen
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuan Zeng
- Gannan Medical University, Ganzhou, Jiangxi, China
| | - Shaochun Yang
- Department of Neurosurgery, First Affiliated of Gannan Medical University, Ganzhou, Jiangxi, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Yanyu Duan
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi, China
- Heart Medical Centre, First Affiliated of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Chunming He
- Department of Neurosurgery, First Affiliated of Gannan Medical University, Ganzhou, Jiangxi, China.
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi, China.
| | - Ziyou Liu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi, China.
- Heart Medical Centre, First Affiliated of Gannan Medical University, Ganzhou, Jiangxi, China.
- Department of Cardiac Surgery, First Affiliated of Gannan Medical University, Ganzhou, Jiangxi, China.
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Zhan H, Zhang Q, Zhang C, Cheng J, Yang Y, Liu C, Li S, Wang C, Yang J, Ge H, Zhou D, Li B, Wei H, Hu C. Targeted Activation of HNF4α by AMPK Inhibits Apoptosis and Ameliorates Neurological Injury Caused by Cardiac Arrest in Rats. Neurochem Res 2023; 48:3129-3145. [PMID: 37338793 PMCID: PMC10471732 DOI: 10.1007/s11064-023-03957-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 05/18/2023] [Accepted: 05/21/2023] [Indexed: 06/21/2023]
Abstract
Previous studies have shown that AMPK plays an important role in cerebral ischemia-reperfusion injury by participating in apoptosis, but the exact mechanism and target of action remains unclear. This study aimed to investigate the protective mechanism of AMPK activation on brain injury secondary to cardiac arrest. HE, Nills and TUNEL assays were used to evaluate neuronal damage and apoptosis. The relationships between AMPK, HNF4α and apoptotic genes were verified by ChIP-seq, dual-luciferase and WB assays. The results showed that AMPK improved the 7-day memory function of rats, and reduced neuronal cell injury and apoptosis in the hippocampal CA1 region after ROSC, while the use of HNF4α inhibitor weakened the protective effect of AMPK. Further research found that AMPK positively regulated the expression of HNF4α, and AMPK could promote the expression of Bcl-2 and inhibit the expression of Bax and Cleaved-Caspase 3. In vitro experiments showed that AMPK ameliorated neuronal injury by inhibiting apoptosis through the activation of HNF4α. Combined with ChIP-seq, JASPAR analysis and Dual-luciferase assay, the binding site of HNF4α to the upstream promoter of Bcl-2 was found. Taken together, AMPK attenuates brain injury after CA by activating HNF4α to target Bcl-2 to inhibit apoptosis.
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Affiliation(s)
- Haohong Zhan
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Qiang Zhang
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Chenyu Zhang
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Jingge Cheng
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Yilin Yang
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Cong Liu
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Shuhao Li
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Chuyue Wang
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Junqin Yang
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hanmei Ge
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Dawang Zhou
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Bo Li
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Hongyan Wei
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Chunlin Hu
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
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5
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Zhang Q, Zhan H, Liu C, Zhang C, Wei H, Li B, Zhou D, Lu Y, Huang S, Cheng J, Li S, Wang C, Hu C, Liao X. Neuroprotective Effect of miR-483-5p Against Cardiac Arrest-Induced Mitochondrial Dysfunction Mediated Through the TNFSF8/AMPK/JNK Signaling Pathway. Cell Mol Neurobiol 2022:10.1007/s10571-022-01296-3. [PMID: 36266523 DOI: 10.1007/s10571-022-01296-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 10/02/2022] [Indexed: 11/26/2022]
Abstract
Substantial morbidity and mortality are associated with postcardiac arrest brain injury (PCABI). MicroRNAs(miRNAs) are essential regulators of neuronal metabolism processes and have been shown to contribute to alleviated neurological injury after cardiac arrest. In this study, we identified miRNAs related to the prognosis of patients with neurological dysfunction after cardiopulmonary resuscitation based on data obtained from the Gene Expression Omnibus (GEO) database. Then, we explored the effects of miR-483-5p on mitochondrial biogenesis, mitochondrial-dependent apoptosis, and oxidative stress levels after ischemia‒reperfusion injury in vitro and in vivo. MiR-483-5p was downregulated in PC12 cells and hippocampal samples compared with that in normal group cells and hippocampi. Overexpression of miR-483-5p increased the viability of PC12 cells after ischemia‒reperfusion injury and reduced the proportion of dead cells. A western blot analysis showed that miR-483-5p increased the protein expression of PCG-1, NRF1, and TFAM and reduced the protein expression of Bax and cleaved caspase 3, inhibiting the release of cytochrome c from mitochondria and alleviating oxidative stress injury by inhibiting the production of ROS and reducing MDA activity. We confirmed that miR-483-5p targeted TNFSF8 to regulate the AMPK/JNK pathway, thereby playing a neuroprotective role after cardiopulmonary resuscitation. Hence, this study provides further insights into strategies for inhibiting neurological impairment after cardiopulmonary resuscitation and suggests a potential therapeutic target for PCABI.
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Affiliation(s)
- Qiang Zhang
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Haohong Zhan
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Cong Liu
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Chenyu Zhang
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
- National Health Council (NHC) Key Laboratory of Assisted Circulation, Guangzhou, 510080, China
| | - Hongyan Wei
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bo Li
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Dawang Zhou
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Yuanzheng Lu
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Shaomin Huang
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Jingge Cheng
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Shuhao Li
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Chuyue Wang
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Chunlin Hu
- Department of Emergency Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Xiaoxing Liao
- Department of Emergency Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China.
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Jian Y, Yuan S, Yang J, Lei Y, Li X, Liu W. Aerobic Exercise Alleviates Abnormal Autophagy in Brain Cells of APP/PS1 Mice by Upregulating AdipoR1 Levels. Int J Mol Sci 2022; 23:ijms23179921. [PMID: 36077318 PMCID: PMC9456508 DOI: 10.3390/ijms23179921] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/23/2022] [Accepted: 08/30/2022] [Indexed: 01/18/2023] Open
Abstract
Abnormalities in autophagy are associated with Alzheimer’s disease (AD)-like lesions. Studies have shown that exercise can significantly improve AD autophagy abnormalities, but the mechanism underlying this phenomenon remains unclear. APN not only has an important regulatory effect on AD autophagy abnormalities, but also is affected by exercise. Therefore, this study aims to reveal the pathway by which exercise regulates abnormal autophagy in AD using the APN–AdipoR1 signaling pathway as an entry point. The results of the study showed that APP/PS1 double transgenic AD model mice (24 weeks) showed decreased AdipoR1 levels in the brain, abnormal autophagy, increased Aβ deposition, and increased cell apoptosis, and dendritic spines and cognitive function were reduced. Twelve weeks of aerobic exercise enhanced lysosomes and alleviated abnormal autophagy by activating the AdipoR1/AMPK/TFEB signaling pathway in the brains of AD mice, thereby alleviating Aβ deposition and its associated AD-like abnormalities. These findings suggest that the AdipoR1 plays an important role in aerobic exercise’s alleviation of abnormal autophagy in AD brain cells and alleviation of AD-like lesions.
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Affiliation(s)
- Ye Jian
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha 410012, China
| | - Shunling Yuan
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha 410012, China
| | - Jialun Yang
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha 410012, China
| | - Yong Lei
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha 410012, China
| | - Xuan Li
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha 410012, China
| | - Wenfeng Liu
- Hunan Provincial Key Laboratory of Physical Fitness and Sports Rehabilitation, Hunan Normal University, Changsha 410012, China
- Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, Hunan Normal University, Changsha 410081, China
- Correspondence:
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7
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Lin SR, Lin QM, Lin YJ, Qian X, Wang XP, Gong Z, Chen F, Song B. Bradykinin postconditioning protects rat hippocampal neurons after restoration of spontaneous circulation following cardiac arrest via activation of the AMPK/mTOR signaling pathway. Neural Regen Res 2022; 17:2232-2237. [PMID: 35259843 PMCID: PMC9083139 DOI: 10.4103/1673-5374.337049] [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] [Indexed: 11/11/2022] Open
Abstract
Bradykinin (BK) is an active component of the kallikrein-kinin system that has been shown to have cardioprotective and neuroprotective effects. We previously showed that BK postconditioning strongly protects rat hippocampal neurons upon restoration of spontaneous circulation (ROSC) after cardiac arrest. However, the precise mechanism underlying this process remains poorly understood. In this study, we treated a rat model of ROSC after cardiac arrest (induced by asphyxiation) with 150 μg/kg BK via intraperitoneal injection 48 hours after ROSC following cardiac arrest. We found that BK postconditioning effectively promoted the recovery of rat neurological function after ROSC following cardiac arrest, increased the amount of autophagosomes in the hippocampal tissue, inhibited neuronal cell apoptosis, up-regulated the expression of autophagy-related proteins LC3 and NBR1 and down-regulated p62, inhibited the expression of the brain injury marker S100β and apoptosis-related protein caspase-3, and affected the expression of adenosine monophosphate-activated protein kinase/mechanistic target of rapamycin pathway-related proteins. Adenosine monophosphate-activated protein kinase inhibitor compound C clearly inhibited BK-mediated activation of autophagy in rats after ROSC following cardiac arrest, which aggravated the injury caused by ROSC. The mechanistic target of rapamycin inhibitor rapamycin enhanced the protective effects of BK by stimulating autophagy. Our findings suggest that BK postconditioning protects against injury caused by ROSC through activating the adenosine monophosphate-activated protein kinase/mechanistic target of the rapamycin pathway.
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Affiliation(s)
- Shi-Rong Lin
- Provincial College of Clinical Medicine, Fujian Medical University; Department of Emergency, Fujian Provincial Hospital South Branch; Department of Emergency, Fujian Provincial Hospital; Fujian Emergency Medical Center; Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Qing-Ming Lin
- Provincial College of Clinical Medicine, Fujian Medical University; Department of Emergency, Fujian Provincial Hospital; Fujian Emergency Medical Center; Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Yu-Jia Lin
- Provincial College of Clinical Medicine, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Xin Qian
- Provincial College of Clinical Medicine, Fujian Medical University; Department of Emergency, Fujian Provincial Hospital; Fujian Emergency Medical Center; Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Xiao-Ping Wang
- Provincial College of Clinical Medicine, Fujian Medical University; Department of Emergency, Fujian Provincial Hospital; Fujian Emergency Medical Center; Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Zheng Gong
- Provincial College of Clinical Medicine, Fujian Medical University; Department of Emergency, Fujian Provincial Hospital; Fujian Emergency Medical Center; Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Feng Chen
- Provincial College of Clinical Medicine, Fujian Medical University; Department of Emergency, Fujian Provincial Hospital; Fujian Emergency Medical Center; Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, Fujian Province, China
| | - Bin Song
- Department of Human Anatomy, School of Basic Medical Sciences, Fujian Medical University; Key Laboratory of Brain Aging and Neurodegenerative Diseases of Fujian Province; Laboratory of Clinical Applied Anatomy, Fujian Medical University, Fuzhou, Fujian Province, China
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8
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Hou M, Ren YP, Wang R, Lu LX. Early cardiopulmonary resuscitation on serum levels of myeloperoxidase, soluble ST2, and hypersensitive C-reactive protein in acute myocardial infarction patients. World J Clin Cases 2021; 9:10585-10594. [PMID: 35004990 PMCID: PMC8686132 DOI: 10.12998/wjcc.v9.i34.10585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/22/2021] [Accepted: 10/14/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Prompt and effective cardiopulmonary resuscitation (CPR) can promote the recovery of spontaneous circulation to some extent and can save patients’ lives. The minimum target of cardiac resuscitation is the restoration of spontaneous circulation (ROSC). However, owing to prolonged sudden cardiac arrest, there is relatively high mortality within 24 h after cardiac resuscitation. Moreover, severe cerebral anoxia can deteriorate the prognosis of patients. Therefore, it is important to adopt an effective clinical evaluation of acute myocardial infarct (AMI) patients’ prognosis after cardiac resuscitation for the purpose of prevention and management.
AIM To investigate early CPR effects on human myeloperoxidase (MPO), soluble ST2 (sST2), and hypersensitive C-reactive protein (hs-CRP) levels in AMI patients.
METHODS In total, 54 patients with cardiac arrest caused by AMI in our hospital were selected as the observation group, and 50 other patients with AMI were selected as the control group. The differences in serum levels of MPO, sST2, and hs-CRP between the observation group and the control group were tested, and the differences in the serum levels of MPO, sST2, and hs-CRP in ROSC and non-ROSC patients, and in patients who died and in those who survived, were analyzed.
RESULTS Serum levels of MPO, sST2, hs-CRP, lactic acid, creatine kinase isoenzyme (CK-MB), and cardiac troponin I (cTnI) were significantly higher in the observation group than in the control group (P < 0.05). Serum levels of MPO, sST2, hs-CRP, lactic acid, CK-MB, and cTnI in the observation group were lower after CPR than before CPR (P < 0.05). In the observation group, MPO, sST2, hs-CRP, lactic acid, CK-MB, and cTnI serum levels were lower in ROSC patients than in non-ROSC patients (P < 0.05). MPO, sST2, hs-CRP, and lactic acid serum levels of patients who died in the observation group were higher than those of patients who survived (P < 0.05). The areas under receiver operating characteristic curve predicted by MPO, sST2, hs-CRP, lactic acid, CK-MB, and cTnI were 0.616, 0.681, 0.705, 0.704, 0.702, and 0.656, respectively (P < 0.05). The areas under receiver operating characteristic curve for MPO, SST2, hs-CRP, and lactic acid to predict death were 0.724, 0.800, 0.689, and 0.691, respectively (P < 0.05). Logistic regression analysis showed that MPO, sST2, and hs-CRP were the influencing factors of ROSC [odds ratios = 1.667, 1.589, and 1.409, P < 0.05], while MPO, sST2, hs-CRP, and lactic acid were the influencing factors of death (odds ratios = 1.624, 1.525, 1.451, and 1.365, P < 0.05).
CONCLUSION Serum levels of MPO, sST2, hs-CRP, and lactic acid have a certain value in predicting recovery and prognosis of patients with ROSC.
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Affiliation(s)
- Min Hou
- Department of Emergency, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, Shanxi Province, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Ya-Ping Ren
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Department of Cardiology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, Shanxi Province, China
| | - Rui Wang
- Department of Emergency, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, Shanxi Province, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Lin-Xin Lu
- Department of Emergency, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, Shanxi Province, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
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Adiponectin Exerts Peripheral Inhibitory Effects on the Mouse Gastric Smooth Muscle through the AMPK Pathway. Int J Mol Sci 2020; 21:ijms21249617. [PMID: 33348652 PMCID: PMC7767160 DOI: 10.3390/ijms21249617] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/10/2020] [Accepted: 12/15/2020] [Indexed: 12/17/2022] Open
Abstract
Some adipokines, such as adiponectin (ADPN), other than being implicated in the central regulation of feeding behavior, may influence gastric motor responses, which are a source of peripheral signals that also influence food intake. The present study aims to elucidate the signaling pathways through which ADPN exerts its actions in the mouse gastric fundus. To this purpose, we used a multidisciplinary approach. The mechanical results showed that ADPN caused a decay of the strip basal tension, which was abolished by the nitric oxide (NO) synthesis inhibitor, L-NG-nitro arginine (L-NNA). The electrophysiological experiments confirmed that all ADPN effects were abolished by L-NNA, except for the reduction of Ca2+ current, which was instead prevented by the inhibitor of AMP-activated protein kinase (AMPK), dorsomorphin. The activation of the AMPK signaling by ADPN was confirmed by immunofluorescence analysis, which also revealed the ADPN R1 receptor (AdipoR1) expression in glial cells of the myenteric plexus. In conclusion, our results indicate that ADPN exerts an inhibitory action on the gastric smooth muscle by acting on AdipoR1 and involving the AMPK signaling pathway at the peripheral level. These findings provide novel bases for considering AMPK as a possible pharmacologic target for the potential treatment of obesity and eating disorders.
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