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Chen C, Xia Z, Zhang M, Cao Y, Chen Q, Cao Q, Li X, Jiang F. Molecular mechanism of HDAC6-mediated pyroptosis in neurological function recovery after cardiopulmonary resuscitation in rats. Brain Res 2024; 1843:149121. [PMID: 38997102 DOI: 10.1016/j.brainres.2024.149121] [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: 04/16/2024] [Revised: 07/05/2024] [Accepted: 07/08/2024] [Indexed: 07/14/2024]
Abstract
Brain injury after cardiac arrest (CA) and cardiopulmonary resuscitation (CPR) is the leading cause of neurological dysfunction and death. This study aimed to explore the mechanism of histone deacetylase 6 (HDAC6) in neurofunctional recovery following CA/CPR in rats. A rat model was established by CA/CPR treatment. Adenovirus-packaged sh-HDAC6 was injected into the tail vein. To evaluate the neurofunction of rats, survival time, neurofunctional scores, serum NSE/S100B, and brain water content were measured and Morris water maze test was performed. HDAC6, microRNA (miR)-138-5p, Nod-like receptor protein 3 (NLRP3), and pyroptotic factor levels were determined by real-time quantitative polymerase chain reaction or Western blot assay. HDAC6 and H3K9ac enrichment on miR-138-5p promoter were examined by chromatin immunoprecipitation. miR-138-5p-NLRP3 binding was analyzed by dual-luciferase reporter assay. NLRP3 inflammasome was activated with nigericin sodium salt. After CPR treatment, HDAC6 was highly expressed, while miR-138-5p was downregulated. HDAC6 downregulation improved neurofunction and reduced pyroptosis. HDAC6 enrichment on the miR-138-5p promoter deacetylated H3K9ac, inhibiting miR-138-5p, and promoting NLRP3-mediated pyroptosis. Downregulating miR-138-5p partially reversed the protective effect of HDAC6 inhibition after CPR. In Conclusion, HDAC6 enrichment on miR-138-5p promoter deacetylated H3K9ac, inhibiting miR-138-5p expression and promoting NLRP3-mediated pyroptosis, worsening neurological dysfunction in rats after CPR.
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Affiliation(s)
- Chunyan Chen
- Department of Infectious Diseases, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Zhuye Xia
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Min Zhang
- Department of Pathology, Gansu Provincial Hospital, Lanzhou 730000, China
| | - Yunshan Cao
- Department of Cardiology, Gansu Provincial Hospital, Lanzhou 730000, China
| | - Qingling Chen
- Department of Emergency Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Qinglian Cao
- Department of Emergency Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Xiang Li
- Department of Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Fan Jiang
- Department of Emergency Medicine, Minhang Hospital, Fudan University, Shanghai 201199, China.
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Wang X, Tian X, Shen H, Zhang X, Xie L, Chen M. Moderate Hyperkalemia Regulates Autophagy to Reduce Cerebral Ischemia-Reperfusion Injury in a CA/CPR Rat Model. Brain Sci 2023; 13:1285. [PMID: 37759886 PMCID: PMC10526941 DOI: 10.3390/brainsci13091285] [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: 08/08/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Cerebral ischemia-reperfusion injury (CIRI) can cause irreversible brain damage and autophagy has been implicated in the pathophysiology. Increasing serum potassium (K+) levels reduces CIRI, but the relationship between its protective mechanism and autophagy is unclear. In this study, we aimed to find the optimal degree of raising serum (K+) and to investigate the relationship between high (K+) and autophagy and the underlying mechanisms in a cardiac arrest/cardiopulmonary resuscitation (CA/CPR) rat model. METHODS Sprague Dawley (SD) rats were divided into four groups: S group, N group, P group, and Q group. The rats S group and N group were administered saline. The rats P group and Q group were administered 640 mg/kg of potassium chloride (KCl) continuously pumped at 4 mL/h (21.3 mg/(kg·min) and divided according to the electrocardiogram (ECG) changes during the administration of KCl. After 24-h of resuscitation, neural damage was assessed by measuring neurological deficit score (NDS), oxidative stress markers, and pathological staining of the cerebral cortex. The level of autophagy and the expression of mTOR-ULK1-Beclin1 pathway-related proteins were evaluated using transmission electron microscopy (TEM), immunostaining, and western blotting. RESULTS Our results revealed that high (K+) improved NDS and decreased the oxidative stress markers. The autophagosomes, autolysosomes, and lysosomes were decreased following treatment KCl. Furthermore, the levels of micro-tubule-associated protein 1 light chain 3 (LC3) Ⅱ/Ⅰ, Unc-51-like kinase 1 (ULK1), and Beclin1 were decreased, whereas mTOR expression was increased in the cortex. CONCLUSION The results demonstrated that moderate hyperkalemia could alleviate autophagy after CIRI via regulating the mTOR-ULK1-Beclin1 pathway.
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Affiliation(s)
- Xiaoqin Wang
- The Intensive Care Unit, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China; (X.W.); (X.T.); (H.S.)
| | - Xinyue Tian
- The Intensive Care Unit, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China; (X.W.); (X.T.); (H.S.)
| | - Haiying Shen
- The Intensive Care Unit, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China; (X.W.); (X.T.); (H.S.)
| | - Xiaohua Zhang
- The Department of Physiology, Guangxi Medical University, Nanning 530021, China; (X.Z.); (L.X.)
| | - Lu Xie
- The Department of Physiology, Guangxi Medical University, Nanning 530021, China; (X.Z.); (L.X.)
| | - Menghua Chen
- The Intensive Care Unit, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China; (X.W.); (X.T.); (H.S.)
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Swiderski J, Sakkal S, Apostolopoulos V, Zulli A, Gadanec LK. Combination of Taurine and Black Pepper Extract as a Treatment for Cardiovascular and Coronary Artery Diseases. Nutrients 2023; 15:nu15112562. [PMID: 37299525 DOI: 10.3390/nu15112562] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/21/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
The shift in modern dietary regimens to "Western style" and sedentary lifestyles are believed to be partly responsible for the increase in the global burden of cardiovascular diseases. Natural products have been used throughout human history as treatments for a plethora of pathological conditions. Taurine and, more recently, black pepper have gained attention for their beneficial health effects while remaining non-toxic even when ingested in excess. Taurine, black pepper, and the major terpene constituents found in black pepper (i.e., β-caryophyllene; α-pinene; β-pinene; α-humulene; limonene; and sabinene) that are present in PhytoCann BP® have been shown to have cardioprotective effects based on anti-inflammatory, antioxidative, anti-hypertensive and anti-atherosclerotic mechanisms. This comprehensive review of the literature focuses on determining whether the combination of taurine and black pepper extract is an effective natural treatment for reducing cardiovascular diseases risk factors (i.e., hypertension and hyperhomocysteinemia) and for driving anti-inflammatory, antioxidative and anti-atherosclerotic mechanisms to combat coronary artery disease, heart failure, myocardial infarction, and atherosclerotic disease.
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Affiliation(s)
- Jordan Swiderski
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia
| | - Samy Sakkal
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia
- Immunology Program, Australian Institute for Musculoskeletal Science, Melbourne, VIC 3021, Australia
| | - Anthony Zulli
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia
| | - Laura Kate Gadanec
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia
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Pomelo Peel Essential Oil Ameliorates Cerebral Ischemia-Reperfusion Injury through Regulating Redox Homeostasis in Rats and SH-SY5Y Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8279851. [PMID: 35571242 PMCID: PMC9098344 DOI: 10.1155/2022/8279851] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/28/2022] [Accepted: 03/05/2022] [Indexed: 01/01/2023]
Abstract
Background In cardiac accident/cardiopulmonary resuscitation (CA/CPR) rat model, oxidative stress occurs during cerebral ischemia/reperfusion injury (CIRI), and antioxidative treatment has a neuroprotective effect. The antioxidant capabilities of pomelo peel essential oil (PPEO) have mostly been investigated in vitro, with little convincing data in vivo, particularly whether PPEO has a neuroprotective role against CIRI. Methods In this investigation, a CA/CPR SD rat model and an oxygen-glucose deprivation/reperfusion (OGD/R) SH-SY5Y cell model were used to imitate the CIRI, and the neuroprotective role of PPEO was discovered in both. The morphological changes of neurons after PPEO treatment were observed using Nissl staining and transmission electron microscopy, while biochemical markers such as MDA, GSH, and Fe2+ were evaluated. Furthermore, western blot, immunofluorescence, and immunohistochemistry were used to examine the proteins GPX4, SLC7A11, ACSL4, and Nrf2. Results Significant morphological alterations were identified during the pathological progression of CIRI. The neurologic deficit scores improved after PPEO therapy, and the expression of GPX4 and SLC7A11 increased, while the levels of intracellular Fe2+, ROS, and ACSL4 declined. PPEO also prevented CIRI caused by erastin (a specific inhibitor of SLC7A11) or RSL3 (inhibitor of GPX4). Furthermore, PPEO-induced increases in SLC7A11 and GPX4 may be related to Nrf2 translocation to the nucleus. Conclusions In vitro and in vivo, we verified and investigated the neuroprotective effects of PPEO on CIRI. The underlying process may be connected to redox homeostasis regulation, which enhances antioxidative capacity through upmodulation of SLC7A11 and GPX4. It implies that PPEO will be considered as a source of potential adjuvant therapeutic agents for improving CIRI outcomes.
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Lyu H, Ni H, Huang J, Yu G, Zhang Z, Zhang Q. VX-765 prevents intestinal ischemia-reperfusion injury by inhibiting NLRP3 inflammasome. Tissue Cell 2022; 75:101718. [PMID: 35131633 DOI: 10.1016/j.tice.2021.101718] [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: 09/16/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Intestinal ischemia-reperfusion injury (IIRI) is a common clinical event that can cause serious consequences. The study aimed to investigated the effect of VX-765 in IIRI and its mechanism. METHODS The hypoxia-reoxygenation (H/R) cell model and IIRI mouse model were generated to examine the in vitro and in vivo effects of VX-765 on IIRI. IIRI was evaluated by histological assessment. ELISA was performed to determine the levels of IL-6, TNF-α, IL-1β, caspase-1, and GSDMD in intestinal tissues as well as the levels of MDA, SOD, CAT, caspase-1, and GSDMD in Caco-2 cells. Relative protein levels of NLRP3, ASC, IL-18, IL-1β, cleaved Caspase1, and GSDMD-N were analyzed by Western blotting. CCK-8 Assay was conducted to determine the optimal concentration of VX-765 for the in vitro studies. Flow cytometry, fluorescence microscopy and real-time PCR (RT-PCR) were used to assess ROS levels and the mRNA levels of IL-18 and IL-1β, respectively. Immunofluorescence staining was performed to examine the subcellular localization of P65 and NLRP3. RESULTS VX-765 reduced IIRI-induced oxidative stress and inflammatory response both in vivo and in vitro, while it decreased the levels of TNF-α, IL-6, IL-1β as well as the modified Park/Chiu scores. The optimal concentration of VX-765 for the in vitro studies was 10 μM. Moreover, VX-765 inhibited the nuclear translocation of P65, reduced oxidative stress and down-regulated the activation of NLRP3 inflammasome. CONCLUSION VX-765 prevents IIRI presumably by inhibiting the activation of NLRP3 inflammasome.
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Affiliation(s)
- Heping Lyu
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Haizhen Ni
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Jingyong Huang
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Guanfeng Yu
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Zhongjing Zhang
- Department of Vascular Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China
| | - Qiyu Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, PR China.
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Yan WT, Yang YD, Hu XM, Ning WY, Liao LS, Lu S, Zhao WJ, Zhang Q, Xiong K. Do pyroptosis, apoptosis, and necroptosis (PANoptosis) exist in cerebral ischemia? Evidence from cell and rodent studies. Neural Regen Res 2022; 17:1761-1768. [PMID: 35017436 PMCID: PMC8820688 DOI: 10.4103/1673-5374.331539] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Some scholars have recently developed the concept of PANoptosis in the study of infectious diseases where pyroptosis, apoptosis and necroptosis act in consort in a multimeric protein complex, PANoptosome. This allows all the components of PANoptosis to be regulated simultaneously. PANoptosis provides a new way to study the regulation of cell death, in that different types of cell death may be regulated at the same time. To test whether PANoptosis exists in diseases other than infectious diseases, we chose cerebral ischemia/reperfusion injury as the research model, collected articles researching cerebral ischemia/reperfusion from three major databases, obtained the original research data from these articles by bibliometrics, data mining and other methods, then integrated and analyzed these data. We selected papers that investigated at least two of the components of PANoptosis to check its occurrence in ischemia/reperfusion. In the cell model simulating ischemic brain injury, pyroptosis, apoptosis and necroptosis occur together and this phenomenon exists widely in different passage cell lines or primary neurons. Pyroptosis, apoptosis and necroptosis also occurred in rat and mouse models of ischemia/reperfusion injury. This confirms that PANoptosis is observed in ischemic brain injury and indicates that PANoptosis can be a target in the regulation of various central nervous system diseases.
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Affiliation(s)
- Wei-Tao Yan
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan Province, China
| | - Yan-Di Yang
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan Province, China
| | - Xi-Min Hu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Wen-Ya Ning
- Department of Human Resources, Third Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Lyu-Shuang Liao
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan Province, China
| | - Shuang Lu
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan Province, China
| | - Wen-Juan Zhao
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan Province, China
| | - Qi Zhang
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan Province, China
| | - Kun Xiong
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University; Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
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