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Chen YY, Gong ZC, Zhang MM, Huang ZH. Brain-Targeting Emodin Mitigates Ischemic Stroke via Inhibiting AQP4-Mediated Swelling and Neuroinflammation. Transl Stroke Res 2024; 15:818-830. [PMID: 37380800 DOI: 10.1007/s12975-023-01170-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 05/26/2023] [Accepted: 06/20/2023] [Indexed: 06/30/2023]
Abstract
Failure to achieve target-specific delivery to ischemic brain sites has hampered the clinical efficacy of newly developed therapies for ischemic stroke. Emodin, an active ingredient isolated from traditional Chinese medicine, has been indicated to alleviate ischemic stroke; however, the underlying mechanism remains unclear. In this study, we aimed to achieve brain-targeted delivery of emodin to maximize its therapeutic efficacy and elucidate the mechanisms by which emodin alleviates ischemic stroke. A polyethylene glycol (PEG)/cyclic Arg-Gly-Asp (cRGD)-modified liposome was used to encapsulate emodin. TTC, HE, Nissl staining, and immunofluorescence staining were employed to evaluate the therapeutic efficacy of brain-targeting emodin in MCAO and OGD/R models. Inflammatory cytokine levels were determined using ELISA. Immunoprecipitation, immunoblotting, and RT-qPCR were utilized for clarifying the changes in key downstream signaling. Lentivirus-mediated gene restoration was employed to verify the core effector of emodin for relieving ischemic stroke. Encapsulating emodin in a PEG/cRGD-modified liposome enhanced its accumulation in the infarct region and substantially raised its therapeutic efficacy. Furthermore, we demonstrated that AQP4, the most abundant water transporter subunit expressed in astrocytes, plays a crucial role in mediating the mechanisms by which emodin inhibits astrocyte swelling, neuroinflammatory blood-brain barrier (BBB) breakdown in vivo and in vitro, and brain edema in general. Our study unveiled the critical target of emodin responsible for alleviating ischemic stroke and a localizable drug delivery vehicle in the therapeutic strategy for ischemic stroke and other brain injuries.
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Affiliation(s)
- Yan-Yan Chen
- Wuxi Cancer Institute, and Wuxi Institute of Integrated Chinese and Western Medicine, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China.
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, 712046, Shaanxi, China.
| | - Zhi-Cheng Gong
- Wuxi Cancer Institute, and Wuxi Institute of Integrated Chinese and Western Medicine, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Mei-Mei Zhang
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, 712046, Shaanxi, China
| | - Zhao-Hui Huang
- Wuxi Cancer Institute, and Wuxi Institute of Integrated Chinese and Western Medicine, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China.
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2
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Liu C, Gao Q, Dong J, Cai H. Usf2 Deficiency Promotes Autophagy to Alleviate Cerebral Ischemia-Reperfusion Injury Through Suppressing YTHDF1-m6A-Mediated Cdc25A Translation. Mol Neurobiol 2024; 61:2556-2568. [PMID: 37914905 DOI: 10.1007/s12035-023-03735-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/20/2023] [Indexed: 11/03/2023]
Abstract
Autophagy has been involved in protection of ischemia/reperfusion (I/R)-induced injury in many tissues including the brain. The upstream stimulatory factor 2 (Usf2) was proposed as a regulator in aging and degenerative brain diseases; however, the its role in autophagy during cerebral I/R injury remains unclear. Here, the middle cerebral artery occlusion (MCAO) operation was applied to establish an I/R mouse model. We showed that Usf2 was significantly upregulated in I/R-injured brain, accompanied by decreased levels of autophagy. Then, oxygen-glucose deprivation/recovery (OGD/R) treatment was used to establish a cellular I/R model in HT22 neurons, and lentiviral interference vector against Usf2 (LV-sh-Usf2) was used to infect the neurons. Our results showed that Usf2 was significantly upregulated in OGD/R-treated HT22 neurons that displayed an increased level in cell apoptosis and decreased levels in cell viability and autophagy, and interference of Usf2 largely rescued the effects of OGD/R on cell viability, apoptosis, and autophagy, suggesting an important role of Usf2 in neuron autophagy. In the mechanism exploration, we found that, as a transcription factor, Usf2 bound to the promoter of YTHDF1, a famous reader of N6-Methyladenosine (m6A), also induced by OGD/R, and promoted its transcription. Overexpression of YTHDF1 was able to reverse the improvement of Usf2 interference on viability and autophagy of HT22 neurons. Moreover, YTHDF1 suppressed autophagy to induce HT22 cell apoptosis through increasing m6A-mediated stability of Cdc25A, a newly identified autophagy inhibitor. Finally, we demonstrated that interference of Usf2 markedly improved autophagy and alleviated I/R-induced injury in MCAO mice.
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Affiliation(s)
- Chao Liu
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, 710061, China
| | - Qing Gao
- Department of Anesthesia Operation, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, 710061, China
| | - Jian Dong
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, 710061, China
| | - Hui Cai
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an, 710061, China.
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3
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Cheng H, Long J, Su J, Chu J, Wang M, Li Q. Mechanism of Paris polyphylla saponin II inducing autophagic to inhibit angiogenesis of cervical cancer. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:3179-3194. [PMID: 37906274 DOI: 10.1007/s00210-023-02794-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 10/13/2023] [Indexed: 11/02/2023]
Abstract
Paris polyphylla saponin II (PPII) has good biological activity in inhibiting tumor angiogenesis. However, the mechanism of its action is still unclear. This study first observed the inhibitory effect of PPII on cervical cancer cells (Hela) through the establishment of MTT and nude mouse subcutaneous transplantation tumor models. Afterwards, then, we collected Hela cell supernatant for culturing HUVEC cells and treated it with PPII. Observe the invasion, migration, and lumen formation ability of drugs through Transwell, cell scratch test, and angiogenesis experiment. MDC staining was used to observe positive staining in the perinuclear area, AO staining was used to observe acidic areas, and transmission electron microscopy staining was used to observe ultrastructure and autophagy. In addition, the effects of PPII on autophagy- and angiogenesis-related protein expression were detected by Western blotting and quantitative reverse transcriptase polymerase chain reaction. Finally, HUVECs were treated with autophagy inhibitors 3-MA, CQ, and PI3K inhibitor LY294002, respectively. The results showed that the autophagy level of cells treated with PPII was significantly increased. In addition, adding autophagy inhibitors can effectively inhibit angiogenesis in cervical cancer. Further research suggests that PPII induces autophagy in HUVEC cells by regulating the PI3K/AKT/mTOR signaling pathway, thereby affecting angiogenesis and inhibiting Hela cell proliferation, lumen formation, invasion, and migration.
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Affiliation(s)
- Hui Cheng
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Meishan Road, Shushan District, Hefei, 230038, China.
- Department of Experimental Center for Scientific Research, Anhui University of Chinese Medicine, Hefei, 230038, China.
| | - Jiao Long
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Meishan Road, Shushan District, Hefei, 230038, China
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Jingjing Su
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Meishan Road, Shushan District, Hefei, 230038, China
| | - Jing Chu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Meishan Road, Shushan District, Hefei, 230038, China
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Meng Wang
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Meishan Road, Shushan District, Hefei, 230038, China
| | - Qinglin Li
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Meishan Road, Shushan District, Hefei, 230038, China.
- Department of Experimental Center for Scientific Research, Anhui University of Chinese Medicine, Hefei, 230038, China.
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4
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Lee J, Hong S, Ahn M, Kim J, Moon C, Matsuda H, Tanaka A, Nomura Y, Jung K, Shin T. Eugenol alleviates the symptoms of experimental autoimmune encephalomyelitis in mice by suppressing inflammatory responses. Int Immunopharmacol 2024; 128:111479. [PMID: 38215654 DOI: 10.1016/j.intimp.2023.111479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/20/2023] [Accepted: 12/29/2023] [Indexed: 01/14/2024]
Abstract
Eugenol is a principal compound in essential clove oil, known for its anti-inflammatory and antioxidant properties. While recent studies have demonstrated its neuroprotective effects on central nervous system (CNS) injuries, such as brain ischemia/reperfusion injuries, but its potential impact on multiple sclerosis (MS), an autoimmune disease of the CNS, has not yet been explored. We evaluated the therapeutic effects of eugenol on experimental autoimmune encephalomyelitis (EAE), an established animal model of MS. EAE was induced in C57BL/6 mice using the myelin oligodendrocyte glycoprotein (MOG)35-55 peptide. Clinical symptoms, including paralysis, were monitored daily, and levels of pro-inflammatory mediators were evaluated using real-time quantitative polymerase chain reaction, Western blot analyses, and immunohistochemistry. Daily oral administration of eugenol to MOG-induced EAE mice led to a notable decline in the severity of clinical symptoms. Eugenol inhibited EAE-related immune cell infiltration and the production of pro-inflammatory mediators. Histological examinations confirmed its ability to mitigate inflammation and demyelination in the spinal cord post-EAE induction. Eugenol alleviates neuroinflammation in the spinal cords of EAE-induced mice, primarily through anti-inflammatory action.
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Affiliation(s)
- Jihye Lee
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 181 Ipsin-gil, Jeongeup-si, Jeonbuk 56212, Republic of Korea
| | - Sungmoo Hong
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Meejung Ahn
- Department of Animal Science, College of Life Science, Sangji University, Wonju 26339, Republic of Korea
| | - Jeongtae Kim
- Department of Anatomy, Kosin University College of Medicine, Busan 49267, Republic of Korea
| | - Changjong Moon
- Department of Veterinary Anatomy and Animal Behavior, College of Veterinary Medicine and BK21 Plus Project Team, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hiroshi Matsuda
- Laboratory of Comparative Animal Medicine, Division of Animal Life Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Akane Tanaka
- Cooperative Major in Advanced Health Science, Graduate School of Bio-Applications and System Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Yoshihiro Nomura
- Scleroprotein and Leather Research Institute, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Kyungsook Jung
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 181 Ipsin-gil, Jeongeup-si, Jeonbuk 56212, Republic of Korea.
| | - Taekyun Shin
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea.
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Nagaraju PG, S A, Rao PJ, Priyadarshini P. Assessment of acute and subacute toxicity, pharmacokinetics, and biodistribution of eugenol nanoparticles after oral exposure in Wistar rats. Nanotoxicology 2024; 18:87-105. [PMID: 38349196 DOI: 10.1080/17435390.2024.2314483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 02/01/2024] [Indexed: 03/27/2024]
Abstract
The present study aimed to assess the safety, toxicity, biodistribution, and pharmacokinetics of eugenol nanoparticles (EONs) following oral administration in Wistar rat models. In the acute toxicity study, the rats were given a fixed dose of 50, 300, and 2000 mg/kg body weight per group orally and screened for 2 weeks after administration. In the subacute study, three different doses (500, 1000, and 2000 mg/kg BW) of EON were administered for 28 days. The results indicated no significant differences in food and water consumption, bodyweight change, hematological and biochemical parameters, relative organ weights, gross findings, or histopathology compared to the control. Additionally, no significant changes were observed in the expression profiles of inflammatory cytokines such as IL-1, IL-6, and TNFα in the plasma, confirming the absence of systemic inflammation. Biodistribution analysis revealed rapid absorption of eugenol and improved bioavailability due to gradual and sustained release, leading to a maximum eugenol concentration of 15.05 μg/mL (Cmax) at approximately 8 h (Tmax) in the blood plasma. Thus, the study provides valuable insights into the utilization of EON for enhancing the stability, solubility, and sustained release of eugenol and highlights its promising safety profile in vivo.
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Affiliation(s)
- Pramod G Nagaraju
- Department of Molecular Nutrition, CSIR - Central Food Technological Research Institute, Mysuru, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Ashwini S
- Department of Molecular Nutrition, CSIR - Central Food Technological Research Institute, Mysuru, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Pooja J Rao
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Plantation Products, Spices and Flavour Technology, CSIR Central Food Technological Research Institute, Mysuru, India
| | - Poornima Priyadarshini
- Department of Molecular Nutrition, CSIR - Central Food Technological Research Institute, Mysuru, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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El-Sayyad SM, El-Ella DMA, Hafez MM, Al-Mokaddem AK, Ali BM, Awny MM, El-Emam SZ. Sesamol defends neuronal damage following cerebral ischemia/reperfusion: a crosstalk of autophagy and Notch1/NLRP3 inflammasome signaling. Inflammopharmacology 2024; 32:629-642. [PMID: 37848698 PMCID: PMC10907497 DOI: 10.1007/s10787-023-01355-1] [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: 04/16/2023] [Accepted: 09/25/2023] [Indexed: 10/19/2023]
Abstract
OBJECTIVE Sesamol (SES) is a phenolic compound found in sesame seed oil. Several studies have revealed its anti-inflammatory and antioxidant properties. However, its complete underlying mechanistic perspective about cerebral ischemia/reperfusion (I/R) lesions has not yet been disclosed. Consequently, we aimed to scrutinize its neuroprotective mechanism against cerebral injury during a global cerebral I/R in a rat model, considering its impact on autophagy and Notch1/NLRP3 inflammasome signaling regulation. METHODS To affirm our purpose, adult Wistar rats were allotted into five groups: sham and the other four groups in which transient global cerebral ischemia was induced by bilateral common ligation (2VO) for 1 h, then reperfusion for either 24 h or 5 days: I/R (1/24), I/R (1/5), SES + I/R (1/24), and SES + I/R (1/5). In treated groups, SES (100 mg/kg, p.o., for 21 days) was administered before cerebral I/R induction. The assessment of histopathological changes in brain tissues, immunohistochemistry, biochemical assays, ELISA, and qRT-PCR were utilized to investigate our hypothesis. RESULTS Advantageously, SES halted the structural neuronal damage with lessened demyelination induced by cerebral I/R injury. Restoring oxidant/antioxidant balance was evident by boosting the total antioxidant capacity and waning lipid peroxidation. Furthermore, SES reduced inflammatory and apoptosis markers. Additionally, SES recovered GFAP, Cx43, and autophagy signaling, which in turn switched off the Notch-1/NLRP3 inflammasome trajectory. CONCLUSIONS Our results revealed the neuroprotective effect of SES against cerebral I/R injury through alleviating injurious events and boosting autophagy, consequently abolishing Notch1/NLRP3 inflammasome signaling.
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Affiliation(s)
- Shorouk Mohamed El-Sayyad
- Faculty of Pharmacy, Pharmacology and Toxicology Department, October 6 University, Giza, 12585, Egypt
| | - Dina M Abo El-Ella
- Faculty of Pharmacy, Pharmacology and Toxicology Department, October 6 University, Giza, 12585, Egypt
| | - Mohamed M Hafez
- Faculty of Pharmacy, Biochemistry Department, Ahram Canadian University (ACU), Giza, Egypt
| | - Asmaa K Al-Mokaddem
- Faculty of Veterinary Medicine, Department of Pathology, Cairo University, Giza, 12211, Egypt
| | - Bassam Mohamed Ali
- Faculty of Pharmacy, Department of Biochemistry, October 6 University, Giza, 12585, Egypt
| | - Magdy M Awny
- Faculty of Pharmacy, Pharmacology and Toxicology Department, October 6 University, Giza, 12585, Egypt
| | - Soad Z El-Emam
- Faculty of Pharmacy, Pharmacology and Toxicology Department, October 6 University, Giza, 12585, Egypt.
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7
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Saleh DO, Baraka SM, Jaleel GAA, Hassan A, Ahmed-Farid OA. Eugenol alleviates acrylamide-induced rat testicular toxicity by modulating AMPK/p-AKT/mTOR signaling pathway and blood-testis barrier remodeling. Sci Rep 2024; 14:1910. [PMID: 38253778 PMCID: PMC10803763 DOI: 10.1038/s41598-024-52259-1] [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: 10/11/2023] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
This study aimed to investigate the effects of eugenol treatment on reproductive parameters in acrylamide (ACR)-intoxicated rats. The study evaluated alterations in relative testes and epididymides weights, sperm quality, serum hormonal status, seminal plasma amino acids, testicular cell energy and phospholipids content, oxidative and nitrosative stress parameters, adenosine monophosphate-activated protein kinase/ phosphoinositide 3-kinase/phosphor-protein kinase B/mammalian target of rapamycin (AMPK/PI3K/p-AKT/mTOR) signaling pathway, blood-testis barrier (BTB) remodeling markers, testicular autophagy and apoptotic markers, as well as histopathological alterations in testicular tissues. The results revealed that eugenol treatment demonstrated a significant improvement in sperm quality parameters, with increased sperm cell concentration, progressive motility live sperm, and a reduction in abnormal sperm, compared to the ACR-intoxicated group. Furthermore, eugenol administration increased the levels of seminal plasma amino acids in a dose-dependent manner. In addition, eugenol treatment dose-dependently improved testicular oxidative/nitrosative stress biomarkers by increasing oxidized and reduced glutathione levels and reducing malondialdehyde and nitric oxide contents as compared to ACRgroup. However, eugenol treatment at a high dose restored the expression of AMPK, PI3K, and mTOR genes, to levels comparable to the control group, while significantly increasing p-AKT content compared to the ACRgroup. In conclusion, the obtained findings suggest the potential of eugenol as a therapeutic agent in mitigating ACR-induced detrimental effects on the male reproductive system via amelioration of ROS-mediated autophagy, apoptosis, AMPK/p-AKT/mTOR signaling pathways and BTB remodeling.
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Affiliation(s)
- Dalia O Saleh
- Pharmacology Department, National Research Centre, Giza, 12622, Egypt.
| | - Sara M Baraka
- Chemistry of Natural Compounds Department, National Research Centre, Giza, 12622, Egypt
| | | | - Azza Hassan
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Omar A Ahmed-Farid
- Physiology Department, National Organization for Drug Control and Research, Giza, Egypt
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Hong S, Jung K, Ahn M, Kim J, Moon C, Shin T. Eugenol ameliorates uveitis in mice with experimental autoimmune encephalomyelitis through the suppression of key inflammatory genes. Anim Cells Syst (Seoul) 2024; 28:37-44. [PMID: 38249123 PMCID: PMC10798281 DOI: 10.1080/19768354.2024.2304557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 01/08/2024] [Indexed: 01/23/2024] Open
Abstract
Visual impairment associated with uveitis is among the potential complications in multiple sclerosis (MS) and its animal model, experimental autoimmune encephalomyelitis (EAE). Bioinformatics analyses have shown that some hub genes are closely associated with the molecular mechanisms underlying uveitis in EAE. This study evaluated whether 4-allyl-2-methoxyphenol (eugenol) can mitigate the pathogenesis of uveitis in EAE through the interruption of key uveitogenic gene expression. Myelin oligodendrocyte glycoprotein35-55 (MOG) peptide-immunized C57BL/6 mice were injected intraperitoneally with eugenol. The eyeballs and spinal cords of EAE mice with or without eugenol treatment were collected simultaneously and immunohistochemical and molecular biological analyses were conducted. Eugenol treatment significantly ameliorated hindlimb paralysis. Ionized calcium-binding adapter molecule 1 (Iba-1) immunohistochemistry showed that the inflammatory response was significantly reduced in the uvea of eugenol-treated EAE mice compared with vehicle-treated controls. Eugenol also significantly reduced the expression of key uveitogenic genes including C1qb and Tyrobp. The suppressive effect of eugenol on inflammation was also observed in the spinal cord, as determined by the suppression of Iba-1-positive microglial cells. Together, these results suggest that the ameliorative effect of eugenol against EAE uveitis is associated with the suppression of key proinflammatory genes, which may represent targets for the treatment of uveitis.
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Affiliation(s)
- Sungmoo Hong
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, Republic of Korea
| | - Kyungsook Jung
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Republic of Korea
| | - Meejung Ahn
- Department of Animal Science, College of Life Science, Sangji University, Wonju, Republic of Korea
| | - Jeongtae Kim
- Department of Anatomy, Kosin University College of Medicine, Busan, Republic of Korea
| | - Changjong Moon
- Department of Veterinary Anatomy and Animal Behavior, College of Veterinary Medicine and BK21 Plus Project Team, Chonnam National University, Gwangju, Republic of Korea
| | - Taekyun Shin
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, Republic of Korea
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Shen J, Zhang Y, Wu X. Rapamycin promotes hematoma resorption and enhances endothelial cell function by suppressing the mTOR/STAT3 signaling in chronic subdural hematoma. Exp Cell Res 2023; 433:113829. [PMID: 37879548 DOI: 10.1016/j.yexcr.2023.113829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 10/22/2023] [Indexed: 10/27/2023]
Abstract
Chronic subdural hematoma (CSDH) remains a neurosurgical condition and a healthy burden especially in elderly patients. This study focuses on the functions of rapamycin and its related molecular mechanisms in CSDH management. A rat model of CSDH was induced, which developed significant hematoma on day 5 after operation. The rats were treated with rapamycin or atorvastatin, a drug with known effect on hematoma alleviation, or treated with rapamycin and atorvastatin in combination. The atorvastatin or rapamycin treatment reduced the hematoma development, blood-brain barrier permeability, neurological dysfunction in CSDH rats, and the combination treatment showed more pronounced effects. Human brain microvascular endothelial cells hCMEC/D3 were stimulated by hematoma samples to mimic a CSDH condition in vitro. The drug treatments elevated the cell junction-related factors and reduced the pro-inflammatory cytokines both in rat hematoma tissues and in hCMEC/D3 cells. Rapamycin suppressed the mTOR and STAT3 signaling pathways. Overexpression of mTOR or the STAT3 agonist suppressed the alleviating effects of rapamycin on CSDH. In summary, this study demonstrates that rapamycin promotes hematoma resorption and enhances endothelial cell function by suppressing the mTOR/STAT3 signaling.
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Affiliation(s)
- Jie Shen
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, PR China.
| | - Yile Zhang
- Department of Neurosurgery, Xijing Hospital, Xi'an, 710000, Shaanxi, PR China
| | - Xiaoqiang Wu
- Department of Neurosurgery, The People's Hospital of Sixian County, Suzhou, 234399, Anhui, PR China
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10
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Zhu X, An X, Chen M, Guo D, Xie P, Wang B, Huang Z, Yu W. Seipin overexpression attenuates cerebral ischemia-reperfusion injury via preventing apoptosis and autophagy. Brain Behav 2023; 13:e3195. [PMID: 37897134 PMCID: PMC10726895 DOI: 10.1002/brb3.3195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Ischemic cerebrovascular disease (ICVD) is one of three fatal diseases in humans, along with heart disease and malignant tumors. Cerebral ischemia/reperfusion injury (CI/RI) is the primary cause of ICVD. Recently, seipin was reported to be crucial for lipid droplet formation, hepatic steatosis, and axonal atrophy. However, the function and mechanism of seipin in CI/RI has not been explicitly stated. METHODS Oxygen-glucose deprivation/reoxygenation (OGD/R) hippocampal neuron cell line (HT-22) and middle cerebral artery occlusion (MCAO) in rats were established. The levels of apoptosis- and autophagy-related proteins and seipin were confirmed by western blot. Cell proliferation was assessed with CCK-8, and ischemic infarction and pathological structure were monitored by TTC and H&E staining, and tissue apoptosis was assessed through TUNEL assay. RESULTS The proliferative activity was decreased, and apoptosis and autophagy pathways could also be induced in the OGD/R HT-22 cells. Seipin overexpression accelerated viability and inhibited apoptosis and autophagy in the OGD/R HT-22 cells. Moreover, the data revealed that seipin overexpression could also attenuate cerebral infarction, apoptosis. Autophagy pathways could be repressed by seipin in the MCAO rats. CONCLUSION Seipin has a protective role against CI/RI in rats, and its mechanism might be relevant to the suppression of apoptosis and autophagy, suggesting that seipin might be a latent target for CI/RI.
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Affiliation(s)
- Xiaoxi Zhu
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
- Cell engineering LaboratoryAffiliated Hospital of Zunyi Medical UniversityZunyi CityChina
| | - Xiaoqiong An
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Ming Chen
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Dongfen Guo
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Peng Xie
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Bi Wang
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Zhi Huang
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Wenfeng Yu
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
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11
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Mohamed SK, Ahmed AAE, Elkhoely A. Sertraline Pre-Treatment Attenuates Hemorrhagic Transformation Induced in Rats after Cerebral Ischemia Reperfusion via Down Regulation of Neuronal CD163: Involvement of M1/M2 Polarization Interchange and Inhibiting Autophagy. J Neuroimmune Pharmacol 2023; 18:657-673. [PMID: 37955765 PMCID: PMC10770270 DOI: 10.1007/s11481-023-10093-8] [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: 07/01/2023] [Accepted: 10/17/2023] [Indexed: 11/14/2023]
Abstract
Cerebral ischemia reperfusion (I/R) is one of the neurovascular diseases which leads to severe brain deterioration. Haemorrhagic transformation (HT) is the main complication of ischemic stroke. It exacerbates by reperfusion, causing a more deleterious effect on the brain and death. The current study explored the protective effect of sertraline (Sert) against cerebral I/R in rats by inhibiting HT, together with the molecular pathways involved in this effect. Forty-eight wister male rats were divided into 4 groups: Sham, Sert + Sham, I/R, and Sert + I/R. The ischemic model was induced by bilateral occlusion of the common carotid artery for 20 min, then reperfusion for 24 h. Sertraline (20 mg/kg, p.o.) was administrated for 14 days before exposure to ischemia. Pre-treatment with Sert led to a significant attenuation of oxidative stress and inflammation. In addition, Sert attenuated phosphorylation of extracellular regulated kinases and nuclear factor kappa-p65 expression, consequently modulating microglial polarisation to M2 phenotype. Moreover, Sert prevented the hemorrhagic transformation of ischemic stroke as indicated by the notable decrease in neuronal expression of CD163, activity of Heme oxygenase-2 and matrix metalloproteinase-2 and 9 levels. In the same context, Sert decreased levels of autophagy and apoptotic markers. Furthermore, histological examination, Toluidine blue, and Prussian blue stain aligned with the results. In conclusion, Sert protected against cerebral I/R damage by attenuating oxidative stress, inflammation, autophagy, and apoptotic process. It is worth mentioning that our study was the first to show that Sert inhibited hemorrhagic transformation. The protective effect of sertraline against injury induced by cerebral ischemia reperfusion via inhibiting Hemorrhagic transformation.
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Affiliation(s)
- Shimaa K Mohamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, 11795, Egypt.
| | - Amany A E Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, 11795, Egypt
| | - Abeer Elkhoely
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, 11795, Egypt
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12
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Shi GS, Qin QL, Huang C, Li ZR, Wang ZH, Wang YY, He XY, Zhao XM. The Pathological Mechanism of Neuronal Autophagy-Lysosome Dysfunction After Ischemic Stroke. Cell Mol Neurobiol 2023; 43:3251-3263. [PMID: 37382853 DOI: 10.1007/s10571-023-01382-0] [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: 05/23/2023] [Accepted: 06/22/2023] [Indexed: 06/30/2023]
Abstract
The abnormal initiation of autophagy flux in neurons after ischemic stroke caused dysfunction of autophagy-lysosome, which not only led to autophagy flux blockage, but also resulted in autophagic death of neurons. However, the pathological mechanism of neuronal autophagy-lysosome dysfunction did not form a unified viewpoint until now. In this review, taking the autophagy lysosomal dysfunction of neurons as a starting point, we summarized the molecular mechanisms that led to neuronal autophagy lysosomal dysfunction after ischemic stroke, which would provide theoretical basis for the clinical treatment of ischemic stroke.
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Affiliation(s)
- Guang-Sen Shi
- Faculty of Medicine, Kunming University of Science and Technology, Kunming, 650500, China
| | - Qi-Lin Qin
- Faculty of Medicine, Kunming University of Science and Technology, Kunming, 650500, China
| | - Cheng Huang
- Faculty of Medicine, Kunming University of Science and Technology, Kunming, 650500, China
| | - Zi-Rong Li
- Faculty of Medicine, Kunming University of Science and Technology, Kunming, 650500, China
| | - Zi-Han Wang
- Faculty of Medicine, Kunming University of Science and Technology, Kunming, 650500, China
| | - Yong-Yan Wang
- Faculty of Medicine, Kunming University of Science and Technology, Kunming, 650500, China
| | - Xiu-Ying He
- Institute of Neurological Disease, Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China.
| | - Xiao-Ming Zhao
- Faculty of Medicine, Kunming University of Science and Technology, Kunming, 650500, China.
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13
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Pluta R. The Dual Role of Autophagy in Postischemic Brain Neurodegeneration of Alzheimer's Disease Proteinopathy. Int J Mol Sci 2023; 24:13793. [PMID: 37762096 PMCID: PMC10530906 DOI: 10.3390/ijms241813793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/02/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Autophagy is a self-defense and self-degrading intracellular system involved in the recycling and elimination of the payload of cytoplasmic redundant components, aggregated or misfolded proteins and intracellular pathogens to maintain cell homeostasis and physiological function. Autophagy is activated in response to metabolic stress or starvation to maintain homeostasis in cells by updating organelles and dysfunctional proteins. In neurodegenerative diseases, such as cerebral ischemia, autophagy is disturbed, e.g., as a result of the pathological accumulation of proteins associated with Alzheimer's disease and their structural changes. Postischemic brain neurodegeneration, such as Alzheimer's disease, is characterized by the accumulation of amyloid and tau protein. After cerebral ischemia, autophagy was found to be activated in neuronal, glial and vascular cells. Some studies have shown the protective properties of autophagy in postischemic brain, while other studies have shown completely opposite properties. Thus, autophagy is now presented as a double-edged sword with possible therapeutic potential in brain ischemia. The exact role and regulatory pathways of autophagy that are involved in cerebral ischemia have not been conclusively elucidated. This review aims to provide a comprehensive look at the advances in the study of autophagy behavior in neuronal, glial and vascular cells for ischemic brain injury. In addition, the importance of autophagy in neurodegeneration after cerebral ischemia has been highlighted. The review also presents the possibility of modulating the autophagy machinery through various compounds on the development of neurodegeneration after cerebral ischemia.
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Affiliation(s)
- Ryszard Pluta
- Department of Pathophysiology, Medical University of Lublin, 20-090 Lublin, Poland
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14
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Zheng T, Jiang T, Huang Z, Ma H, Wang M. Role of traditional Chinese medicine monomers in cerebral ischemia/reperfusion injury:a review of the mechanism. Front Pharmacol 2023; 14:1220862. [PMID: 37654609 PMCID: PMC10467294 DOI: 10.3389/fphar.2023.1220862] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/04/2023] [Indexed: 09/02/2023] Open
Abstract
Ischemia/reperfusion (I/R) injury is a pathological process wherein reperfusion of an ischemic organ or tissue exacerbates the injury, posing a significant health threat and economic burden to patients and their families. I/R triggers a multitude of physiological and pathological events, such as inflammatory responses, oxidative stress, neuronal cell death, and disruption of the blood-brain barrier (BBB). Hence, the development of effective therapeutic strategies targeting the pathological processes resulting from I/R is crucial for the rehabilitation and long-term enhancement of the quality of life in patients with cerebral ischemia/reperfusion injury (CIRI). Traditional Chinese medicine (TCM) monomers refer to bioactive compounds extracted from Chinese herbal medicine, possessing anti-inflammatory and antioxidative effects, and the ability to modulate programmed cell death (PCD). TCM monomers have emerged as promising candidates for the treatment of CIRI and its subsequent complications. Preclinical studies have demonstrated that TCM monomers can enhance the recovery of neurological function following CIRI by mitigating oxidative stress, suppressing inflammatory responses, reducing neuronal cell death and functional impairment, as well as minimizing cerebral infarction volume. The neuroprotective effects of TCM monomers on CIRI have been extensively investigated, and a comprehensive understanding of their mechanisms can pave the way for novel approaches to I/R treatment. This review aims to update and summarize evidence of the protective effects of TCMs in CIRI, with a focus on their role in modulating oxidative stress, inflammation, PCD, glutamate excitotoxicity, Ca2+ overload, as well as promoting blood-brain barrier repairment and angiogenesis. The main objective is to underscore the significant contribution of TCM monomers in alleviating CIRI.
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Affiliation(s)
| | | | | | | | - Manxia Wang
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, China
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Xu Q, Zhou D, Yu D. Bone Marrow Mesenchymal Stem Cells-derived Exosomal Long Non-coding RNA KLF3 antisense RNA 1 Enhances Autophagy to Protect Against Cerebral Ischemia/Reperfusion Injury Via ETS Variant Transcription Factor 4/Silent Information Regulator 1 Axis. Neuroscience 2023; 521:44-57. [PMID: 37080449 DOI: 10.1016/j.neuroscience.2023.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 02/23/2023] [Accepted: 02/28/2023] [Indexed: 04/22/2023]
Abstract
Mesenchymal stem cells (MSCs)-derived exosomes are demonstrated to exert neuroprotective effects in stroke. We aimed to explore the role and mechanism of long non-coding RNA (lncRNA) KLF3 antisense RNA 1 (KLF3-AS1) in bone marrow mesenchymal stem cells-derived exosomes (BMSCs-Exos) in cerebral ischemia/reperfusion (I/R) injury. Exosomes were isolated from the culture medium of BMSCs. A mouse model of middle cerebral artery occlusion (MCAO) in vivo and a BV-2 cell model of oxygen and glucose deprivation/reoxygenation (OGD/RX) in vitro were established. Cell viability and apoptosis were detected using MTT assay, TUNEL staining and flow cytometry, respectively. Related proteins were determined with western blot and immunohistochemistry, while related RNAs were analyzed by RT-qPCR. Neurological deficit and cerebral infarct volume were evaluated by the modified neurological severity score (mNSS) and TTC staining, respectively. Our observations indicate that exosomes derived from BMSCs-preconditioned medium exerted neuroprotective effects, as indicated by the increased cell viability and the suppressed apoptosis in OGD/RX-suffered BV-2 cells. KLF3-AS1 expression was upregulated in BMSCs-Exos. Furthermore, KLF3-AS1 knockdown antagonized the protective effects of BMSCs-Exos. Mechanistically, BMSCs-Exos carrying KLF3-AS1 inhibited apoptosis via enhancing autophagy. KLF3-AS1 was found to recruit ETS variant transcription factor 4 (ETV4), which upregulated Sirt1 expression. Knockdown of KLF3-AS1 neutralized the protective effects of BMSCs-Exos on MCAO-induced brain injury, which was then reversed by the treatment with Sirt1 inhibitor EX527. We concluded that KLF3-AS1 derived from BMSCs-Exos promoted autophagy to alleviate I/R injury via ETV4/Sirt1 axis.
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Affiliation(s)
- Qian Xu
- Department of Neurology, Haikou City People's Hospital, Xiangya School of Medicine, Central South University, Haikou 57020, Hainan Province, PR China
| | - Dingzhou Zhou
- Department of Neurosurgery, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), Changsha 410000, Hunan Province, PR China
| | - Dan Yu
- Department of Neurology, Haikou City People's Hospital, Xiangya School of Medicine, Central South University, Haikou 57020, Hainan Province, PR China.
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Xu S, Huang P, Yang J, Du H, Wan H, He Y. Calycosin alleviates cerebral ischemia/reperfusion injury by repressing autophagy via STAT3/FOXO3a signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 115:154845. [PMID: 37148714 DOI: 10.1016/j.phymed.2023.154845] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 04/08/2023] [Accepted: 04/27/2023] [Indexed: 05/08/2023]
Abstract
BACKGROUND As a common cerebrovascular disease (CVD) of the elderly, ischemic stroke (IS) is characterized by high disability and mortality. Excessive autophagy induced by IS is implicated in neuronal death, therefore, the inhibition of immoderate autophagy is viewed as a potential therapeutic avenue to treat IS. Calysoin (CA) is a bioactive component of Radix Astragali, which has been widely used to treat CVDs. However, the mechanism of the treatment of IS by CA is still problematic. PURPOSE Based on the result of network pharmacology, whether CA inhibited autophagy by regulating the STAT3/FOXO3a pathway to alleviate cerebral ischemia-reperfusion injury (CIRI) was investigated in vivo and in vitro for the first time. STUDY DESIGN Integrate computational prediction and experimental validation based on network pharmacology. METHODS In current study, network pharmacology was applied to predict the mechanism of the treatment of IS by CA, and it was shown that CA alleviated CIRI by inhibiting autophagy via STAT3/FOXO3a signaling pathway. One hundred and twenty adult male specific pathogen-free Sprague-Dawley rats in vivo and PC12 cells in vitro were used to verify the above prediction results. The rat middle cerebral artery occlusion/reperfusion (MCAO/R) model was established by suture method, and oxygen glucose deprivation/re-oxygenation (OGD/R) model was used to simulate cerebral ischemia in vivo. The content of MDA, TNF-α, ROS and TGF-β1 in rat serum were detected by ELISA kits. The mRNA and protein expressions in brain tissue were detected by RT-PCR and Western Blotting. The expressions of LC3 in brain were detected immunofluorescent staining. RESULTS The experimental results demonstrated that administration of CA dosage-dependently improved rat CIRI as evidenced by the reduction in the cerebral infarct volume, amelioration of the neurological deficits. HE staining and transmission electron microscopy results revealed that CA ameliorated cerebral histopathological damage, abnormal mitochondrial morphology, and damaged mitochondrial cristae structure in MCAO/R rats. CA treatment exerted protective effects in CIRI by inhibiting inflammation response, oxidative stress injury, and cell apoptosis in rat and PC12 cells. CA relieved excessive autophagy induced by MCAO/R or OGD/R through downregulating the LC3Ⅱ/LC3Ⅰ ratio and upregulating the SQSTM1 expression. CA treatment also decreased p-STAT3/STAT3 and p-FOXO3a/FOXO3a ratio in the cytoplasm and modulated the autophagy-related gene expression both in vivo and in vitro. CONCLUSION Treatment with CA attenuated CIRI by reducing excessive autophagy via STAT3/FOXO3a signal pathway in rat and PC12 cells.
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Affiliation(s)
- Shouchao Xu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Ping Huang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jiehong Yang
- School of Basic Medicine Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Haixia Du
- School of Basic Medicine Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Haitong Wan
- School of Basic Medicine Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Yu He
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
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17
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Chen X, Zhou X, Cheng X, Lin L, Wang Q, Zhan R, Wu Q, Liu S. Protective Effect of Ferulic Acid on Lipopolysaccharide-Induced BV2 Microglia Inflammation via AMPK/mTOR Signaling Pathway. Molecules 2023; 28:molecules28083482. [PMID: 37110714 DOI: 10.3390/molecules28083482] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
In neurodegenerative diseases, microglial activation and neuroinflammation are essential for the control and progression of neurodegenerative diseases. Mitigating microglium-induced inflammation is one strategy for hindering the progression of neurodegenerative diseases. Ferulic acid (FA) is an effective anti-inflammatory agent, but its potential role and regulation mechanism in neuroinflammatory reactions have not been fully studied. In this study, the neuroinflammation model was established by lipopolysaccharide (LPS), and the inhibitory effect of FA on neuroinflammation of BV2 microglia was studied. The results showed that FA significantly reduced the production and expression of reactive oxygen species (ROS), tumor necrosis factor-α (TNF-α), leukocyte-6 (IL-6) and interleukin-1β (IL-1β). We further studied the mechanism of FA's regulation of LPS-induced BV2 neuroinflammation and found that FA can significantly reduce the expression of mTOR in BV2 microglia induced by LPS, and significantly increase the expression of AMPK, indicating that FA may have an anti-inflammatory effect by activating the AMPK/mTOR signaling pathway to regulate the release of inflammatory mediators (such as NLRP3, caspase-1 p20 and IL-1β). We further added an autophagy inhibitor (3-MA) and an AMPK inhibitor (compound C, CC) for reverse verification. The results showed that FA's inhibitory effects on TNF-α, IL-6 and IL-1β and its regulatory effect on AMPK/mTOR were destroyed by 3-MA and CC, which further indicated that FA's inhibitory effect on neuroinflammation is related to its activation of the AMPK/mTOR autophagy signaling pathway. In a word, our experimental results show that FA can inhibit LPS-induced neuroinflammation of BV2 microglia by activating the AMPK/mTOR signaling pathway, and FA may be a potential drug for treating neuroinflammatory diseases.
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Affiliation(s)
- Xingru Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiaolan Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiaoqing Cheng
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Liting Lin
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Qi Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Ruoting Zhan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Guangzhou University of Chinese Medicine, Ministry of Education, Guangzhou 510006, China
| | - Qingguang Wu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Sijun Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
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18
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Zhu J, Park S, Kim CH, Jeong KH, Kim WJ. Eugenol alleviates neuronal damage via inhibiting inflammatory process against pilocarpine-induced status epilepticus. Exp Biol Med (Maywood) 2023; 248:722-731. [PMID: 36802956 PMCID: PMC10408549 DOI: 10.1177/15353702231151976] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 12/25/2022] [Indexed: 02/22/2023] Open
Abstract
Neuroinflammation is one of the most common pathological outcomes in various neurological diseases. A growing body of evidence suggests that neuroinflammation plays a pivotal role in the pathogenesis of epileptic seizures. Eugenol is the major phytoconstituent of essential oils extracted from several plants and possesses protective and anticonvulsant properties. However, it remains unclear whether eugenol exerts an anti-inflammatory effect to protect against severe neuronal damage induced by epileptic seizures. In this study, we investigated the anti-inflammatory action of eugenol in an experimental epilepsy model of pilocarpine-induced status epilepticus (SE). To examine the protective effect of eugenol via anti-inflammatory mechanisms, eugenol (200 mg/kg) was administrated daily for three days after pilocarpine-induced SE onset. The anti-inflammatory action of eugenol was evaluated by examining the expression of reactive gliosis, pro-inflammatory cytokines, nuclear factor-κB (NF-κB), and the nucleotide-binding domain leucine-rich repeat with a pyrin-domain containing 3 (NLRP3) inflammasome. Our results showed that eugenol reduced SE-induced apoptotic neuronal cell death, mitigated the activation of astrocytes and microglia, and attenuated the expression of interleukin-1β and tumor necrosis factor α in the hippocampus after SE onset. Furthermore, eugenol inhibited NF-κB activation and the formation of the NLRP3 inflammasome in the hippocampus after SE. These results suggest that eugenol is a potential phytoconstituent that suppresses the neuroinflammatory processes induced by epileptic seizures. Therefore, these findings provide evidence that eugenol has therapeutic potential for epileptic seizures.
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Affiliation(s)
- Jing Zhu
- Department of Neurology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Soojin Park
- Department of Neurology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Chul Hoon Kim
- Department of Pharmacology, Brain Korea 21 Project, Brain Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Kyoung Hoon Jeong
- Epilepsy Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Won-Joo Kim
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Republic of Korea
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Tang B, Luo Z, Zhang R, Zhang D, Nie G, Li M, Dai Y. An update on the molecular mechanism and pharmacological interventions for Ischemia-reperfusion injury by regulating AMPK/mTOR signaling pathway in autophagy. Cell Signal 2023; 107:110665. [PMID: 37004834 DOI: 10.1016/j.cellsig.2023.110665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023]
Abstract
AMP-activated protein kinase (5'-adenosine monophosphate-activated protein kinase, AMPK)/mammalian target of rapamycin (mTOR) is an important signaling pathway maintaining normal cell function and homeostasis in vivo. The AMPK/mTOR pathway regulates cellular proliferation, autophagy, and apoptosis. Ischemia-reperfusion injury (IRI) is secondary damage that frequently occurs clinically in various disease processes and treatments, and the exacerbated injury during tissue reperfusion increases disease-associated morbidity and mortality. IRI arises from multiple complex pathological mechanisms, among which cell autophagy is a focus of recent research and a new therapeutic target. The activation of AMPK/mTOR signaling in IRI can modulate cellular metabolism and regulate cell proliferation and immune cell differentiation by adjusting gene transcription and protein synthesis. Thus, the AMPK/mTOR signaling pathway has been intensively investigated in studies focused on IRI prevention and treatment. In recent years, AMPK/mTOR pathway-mediated autophagy has been found to play a crucial role in IRI treatment. This article aims to elaborate the action mechanisms of AMPK/mTOR signaling pathway activation in IRI and summarize the progress of AMPK/mTOR-mediated autophagy research in the field of IRI therapy.
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Affiliation(s)
- Bin Tang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Zhijian Luo
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Rong Zhang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Dongmei Zhang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Guojun Nie
- The First Outpatient Department of People's Liberation Army Western Theater General Hospital, Cheng Du, Sichuan Province 61000, China
| | - Mingxing Li
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China.
| | - Yan Dai
- Department of pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China.
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20
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Myricetin improves apoptosis after ischemic stroke via inhibiting MAPK-ERK pathway. Mol Biol Rep 2023; 50:2545-2557. [PMID: 36611117 DOI: 10.1007/s11033-022-08238-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/22/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND Neuronal apoptosis is the main cause for the disabilities and deaths of patients suffered with stroke. Neuroprotectants are clinically used to reduce neuronal apoptosis in ischemic stroke. However, the current neuroprotectants have multiple limitations. Myricetin is beneficial for multiple neurodegenerative diseases, but the role of myricetin as a neuroprotective agent in ischemic stroke is still not fully understood. METHODS AND RESULTS Middle cerebral artery occlusion, Terminal deoxynucleotidyl transferase dUTP nick-end labeling staining and Western blots were used to explore the anti-apoptotic effects of myricetin in vivo. Flow cytometry, Western blots and Ca2+ staining were used to study the neuroprotective effects of myricetin in vitro. In this study, we first demonstrated that myricetin reduced neuronal apoptosis after ischemia in vivo and in vitro. And, among the factors of apoptosis after ischemic stroke, excitotoxicity, oxidative stress and inflammation-induced apoptosis can be alleviated by myricetin. Moreover, we further demonstrated that myricetin was able to improve neuronal intrinsic apoptosis by inhibiting the phosphorylation of extracellular signal-regulated kinase in the oxygen and glucose deprivation in vitro. CONCLUSIONS Summarily, our results support myricetin as a novel neuroprotectant for the prevention or treatment of ischemic stroke via MAPK-ERK signaling pathway.
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21
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Truzzi F, Whittaker A, D’Amen E, Valerii MC, Abduazizova V, Spisni E, Dinelli G. Spermidine-Eugenol Supplement Preserved Inflammation-Challenged Intestinal Cells by Stimulating Autophagy. Int J Mol Sci 2023; 24:ijms24044131. [PMID: 36835540 PMCID: PMC9964041 DOI: 10.3390/ijms24044131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Increases in non-communicable and auto-immune diseases, with a shared etiology of defective autophagy and chronic inflammation, have motivated research both on natural products in drug discovery fields and on the interrelationship between autophagy and inflammation. Within this framework, the tolerability and protective effects of a wheat-germ spermidine (SPD) and clove eugenol (EUG) combination supplement (SUPPL) were investigated on inflammation status (after the administration of lipopolysaccharide (LPS)) and on autophagy using human Caco-2 and NCM460 cell lines. In comparison to the LPS treatment alone, the SUPPL + LPS significantly attenuated ROS levels and midkine expression in monocultures, as well as occludin expression and mucus production in reconstituted intestinal equivalents. Over a timeline of 2-4 h, the SUPPL and SUPPL + LPS treatments stimulated autophagy LC3-11 steady state expression and turnover, as well as P62 turnover. After completely blocking autophagy with dorsomorphin, inflammatory midkine was significantly reduced in the SUPPL + LPS treatment in a non-autophagy-dependent manner. After a 24 h timeline, preliminary results showed that mitophagy receptor BNIP3L expression was significantly downregulated in the SUPPL + LPS treatment compared to the LPS alone, whereas conventional autophagy protein expression was significantly higher. The SUPPL shows promise in reducing inflammation and increasing autophagy to improve intestinal health.
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Affiliation(s)
- Francesca Truzzi
- Department of Agricultural and Food Sciences, Alma Mater Studiorum—University of Bologna, 40127 Bologna, Italy
- Correspondence: ; Tel.: +39-051-2096674
| | - Anne Whittaker
- Department of Agricultural and Food Sciences, Alma Mater Studiorum—University of Bologna, 40127 Bologna, Italy
| | - Eros D’Amen
- Department of Agricultural and Food Sciences, Alma Mater Studiorum—University of Bologna, 40127 Bologna, Italy
| | - Maria Chiara Valerii
- Department of Biological, Geological, and Environmental Sciences, Alma Mater Studiorum—University of Bologna, 40127 Bologna, Italy
| | | | - Enzo Spisni
- Department of Biological, Geological, and Environmental Sciences, Alma Mater Studiorum—University of Bologna, 40127 Bologna, Italy
| | - Giovanni Dinelli
- Department of Agricultural and Food Sciences, Alma Mater Studiorum—University of Bologna, 40127 Bologna, Italy
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22
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Makievskaya CI, Popkov VA, Andrianova NV, Liao X, Zorov DB, Plotnikov EY. Ketogenic Diet and Ketone Bodies against Ischemic Injury: Targets, Mechanisms, and Therapeutic Potential. Int J Mol Sci 2023; 24:2576. [PMID: 36768899 PMCID: PMC9916612 DOI: 10.3390/ijms24032576] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/17/2023] [Accepted: 01/25/2023] [Indexed: 02/03/2023] Open
Abstract
The ketogenic diet (KD) has been used as a treatment for epilepsy since the 1920s, and its role in the prevention of many other diseases is now being considered. In recent years, there has been an intensive investigation on using the KD as a therapeutic approach to treat acute pathologies, including ischemic ones. However, contradictory data are observed for the effects of the KD on various organs after ischemic injury. In this review, we provide the first systematic analysis of studies conducted from 1980 to 2022 investigating the effects and main mechanisms of the KD and its mimetics on ischemia-reperfusion injury of the brain, heart, kidneys, liver, gut, and eyes. Our analysis demonstrated a high diversity of both the composition of the used KD and the protocols for the treatment of animals, which could be the reason for contradictory effects in different studies. It can be concluded that a true KD or its mimetics, such as β-hydroxybutyrate, can be considered as positive exposure, protecting the organ from ischemia and its negative consequences, whereas the shift to a rather similar high-calorie or high-fat diet leads to the opposite effect.
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Affiliation(s)
- Ciara I. Makievskaya
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Vasily A. Popkov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Nadezda V. Andrianova
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Xinyu Liao
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Dmitry B. Zorov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Egor Y. Plotnikov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
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Wang YH, Long HP, Zhang SX, Liu J, Zhao HQ, Yi J, Linga J. Network pharmacology-based and pharmacological evaluation of the effects of Curcumae Radix on cerebral ischemia–Reperfusion injury. WORLD JOURNAL OF TRADITIONAL CHINESE MEDICINE 2023. [DOI: 10.4103/2311-8571.370154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
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Li B, Wang W, Li Y, Wang S, Liu H, Xia Z, Gao W, Zhao B. cGAS-STING pathway aggravates early cerebral ischemia-reperfusion injury in mice by activating NCOA4-mediated ferritinophagy. Exp Neurol 2023; 359:114269. [PMID: 36343680 DOI: 10.1016/j.expneurol.2022.114269] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/24/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022]
Abstract
Stroke patients are often complicated by cerebral ischemia-reperfusion injury (CIRI) after the restoration of cerebral perfusion, and how to prevent CIRI at an early stage has received close attention. The imbalance of iron metabolism is one of the essential factors in the aggravation of CIRI, and NCOA4-mediated ferritinophagy, as a critical pathway to regulate iron metabolism, is expected to be an effective intervention target. We established a mouse model of cerebral ischemia-reperfusion (CIR) with NCOA4 silencing. We found that activation of NCOA4-mediated ferritinophagy atthe early stage of CIR mediated the onset of oxidative stress and contributed to autophagy and apoptosis, and eventually resulted in increased brain injury. This suggests that NCOA4-mediated ferritinophagy plays a vital role in early CIR and can be an effective target to prevent and treat CIRI. We next explored the upstream regulatory targets of NCOA4-mediated ferritinophagy. The previous evidence for the cGAS-STING pathway's importance during CIR and its strong relationship with autophagy attracted our attention. To investigate whether the cGAS-STING pathway regulates NCOA4-mediated ferritinophagy, we further administered a cGAS inhibitor to mice with CIR and overexpressed NCOA4. Along with the inhibition of the cGAS-STING pathway, ferritinophagy, oxidative stress, autophagy, and apoptosis were inhibited, and CIRI was ameliorated, which was attenuated by NCOA4 overexpression. In conclusion, our results suggest that activation of the cGAS-STING pathway exacerbates CIRI at the early stage of CIR, which may be achieved by mediating NCOA4-mediated ferritinophagy.
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Affiliation(s)
- Bingyu Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Wei Wang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yanan Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Su Wang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Hengjuan Liu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Wenwei Gao
- Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Bo Zhao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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Li C, Chi J, Dai H, Liang M, Wang Y, Tian S, Zhu H, Xu H. Salidroside attenuates cerebral ischemia/reperfusion injury by regulating TSC2-induced autophagy. Exp Brain Res 2023; 241:113-125. [PMID: 36374318 DOI: 10.1007/s00221-022-06493-6] [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: 06/28/2022] [Accepted: 10/19/2022] [Indexed: 11/16/2022]
Abstract
Salidroside (SAL), an antioxidant derived from Rhodiola rosea, exerts neuroprotective effects in cerebral ischemia/reperfusion (I/R) injury; however, the mechanisms have not been fully elucidated. The present study established a rat model of middle cerebral artery occlusion/reperfusion (MCAO/R) and a cellular model of oxygen-glucose deprivation/reoxygenation (OGD/R) to explore the roles and mechanisms of SAL in cerebral I/R injury. The rat model of MCAO/R was established and rats were treated with different doses of SAL. The Zea-Longa scoring system and 2,3,5-triphenyltetrazolium chloride (TTC) staining showed that SAL reduced neurological deficit scores and cerebral infarct volumes in MCAO/R rats. The results of Morris water maze (MWM) test showed that SAL reduced memory impairment in MCAO/R rats. In addition, SAL significantly reduced oxidative stress and suppressed inflammatory response. Next, the OGD/R model was established with PC12 cells and treated with SAL. The results of flow cytometry and 3-(4, 5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide (MTT) assays showed that SAL reduced apoptosis, enhanced cell viability and protected neuronal cells from damage by decreasing lactate dehydrogenase (LDH) activity. SAL increased the expression of TSC complex subunit 2 (TSC2), and activated the 5'-AMP-activated protein kinase (AMPK) and inhibited the mammalian target of rapamycin (mTOR) signaling pathways. It was verified that SAL alleviated cerebral I/R injury by regulating the AMPK/TSC2/mTOR pathway to induce autophagy. In conclusion, SAL reduces the inflammatory response and oxidative stress in a concentration-dependent manner, and protects against cerebral I/R injury by modulating TSC2-induced autophagy. These findings suggest SAL may prove to be a potential therapeutic agent for ischemic stroke.
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Affiliation(s)
- Chunli Li
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91, Tianchi Road, Tianshan District, Ürümqi, 830001, Xinjiang, China
| | - Jiejun Chi
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91, Tianchi Road, Tianshan District, Ürümqi, 830001, Xinjiang, China
| | - Hongyan Dai
- Function Center School of Basic Medical Sciences, Xinjiang Medical University, Ürümqi, 830054, Xinjiang, China
| | - Ming Liang
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91, Tianchi Road, Tianshan District, Ürümqi, 830001, Xinjiang, China
| | - Yangyang Wang
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91, Tianchi Road, Tianshan District, Ürümqi, 830001, Xinjiang, China
| | - Songxin Tian
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91, Tianchi Road, Tianshan District, Ürümqi, 830001, Xinjiang, China
| | - Huiyan Zhu
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91, Tianchi Road, Tianshan District, Ürümqi, 830001, Xinjiang, China
| | - Hai Xu
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, No. 91, Tianchi Road, Tianshan District, Ürümqi, 830001, Xinjiang, China.
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Deng J, Zhang X, Yin M, Cao W, Zhang B, Liu Q, Hou X, Wang H, Shi C. Modified CFBP-bFGF targeting to ischemic brain promoted the functional recovery of cerebral ischemia. J Control Release 2023; 353:462-474. [PMID: 36493946 DOI: 10.1016/j.jconrel.2022.12.007] [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: 08/21/2022] [Revised: 11/11/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022]
Abstract
The cerebral ischemia was one of the most common causes of disability and death worldwide. Basic fibroblast growth factor (bFGF) was reported to have neuroprotective function as well as promoting angiogenesis in the ischemic brain, but the targeting delivery of bFGF to ischemic brain was still difficult. In present study, a specific peptide was used to modify bFGF to construct recombinant CFBP-bFGF, and CFBP-bFGF could specifically deliver to ischemic brain through binding with the upregulated protein-connective tissue growth factor (CTGF). When CFBP-bFGF was used in rats with cerebral ischemia by intravenous injection, local concentration of the bFGF in ischemic brain was significantly increased. In addition, enhanced neurons survival, increased angiogenesis, decreased neuroinflammation were observed, that improved the motor functional recovery of cerebral ischemic injury. These results demonstrated that the targeting delivery of CFBP-bFGF would be a potential therapeutic approach for cerebral ischemia.
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Affiliation(s)
- Jin Deng
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao 266071, China; Department of Neurology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266000, Shandong, China
| | - Xiaojing Zhang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao 266071, China
| | - Mengmeng Yin
- The Second Department of Neurology, Qingdao Central Hospital, 127 South Siliu Road, Qingdao 266042, Shandong, China
| | - Wenxuan Cao
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao 266071, China
| | - Bing Zhang
- Department of Neurology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266000, Shandong, China
| | - Qi Liu
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao 266071, China; Department of Neurology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266000, Shandong, China
| | - Xianglin Hou
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100190, China..
| | - Haiping Wang
- Department of Neurology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266000, Shandong, China.
| | - Chunying Shi
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao 266071, China.
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Wei S, Leng B, Yan G. Targeting autophagy process in center nervous trauma. Front Neurosci 2023; 17:1128087. [PMID: 36950126 PMCID: PMC10025323 DOI: 10.3389/fnins.2023.1128087] [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: 12/20/2022] [Accepted: 02/20/2023] [Indexed: 03/08/2023] Open
Abstract
The central nervous system (CNS) is the primary regulator of physiological activity, and when CNS is compromised, its physical functions are affected. Spinal cord injury (SCI) and traumatic brain injury (TBI) are common trauma in CNS that are difficult to recover from, with a higher global disability and mortality rate. Autophagy is familiar to almost all researchers due to its role in regulating the degradation and recycling of cellular defective or incorrect proteins and toxic components, maintaining body balance and regulating cell health and function. Emerging evidence suggests it has a broad and long-lasting impact on pathophysiological process such as oxidative stress, inflammation, apoptosis, and angiogenesis, involving the alteration of autophagy marker expression and function recovery. Changes in autophagy level are considered a potential therapeutic strategy and have shown promising results in preclinical studies for neuroprotection following traumatic brain injury. However, the relationship between upward or downward autophagy and functional recovery following SCI or TBI is debatable. This article reviews the regulation and role of autophagy in repairing CNS trauma and the intervention effects of autophagy-targeted therapeutic agents to find more and better treatment options for SCI and TBI patients.
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Affiliation(s)
- Shanshan Wei
- Department of Graduate, Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, China
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Bing Leng
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Genquan Yan
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Genquan Yan,
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Randhawa PK, Rajakumar A, Futuro de Lima IB, Gupta MK. Eugenol attenuates ischemia-mediated oxidative stress in cardiomyocytes via acetylation of histone at H3K27. Free Radic Biol Med 2023; 194:326-336. [PMID: 36526244 PMCID: PMC10074330 DOI: 10.1016/j.freeradbiomed.2022.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022]
Abstract
Despite clinical advances, ischemia-induced cardiac diseases remain an underlying cause of death worldwide. Epigenetic modifications, especially alterations in the acetylation of histone proteins play a pivotal role in counteracting stressful conditions, including ischemia. In our study, we found that histone active mark H3K27ac was significantly reduced and histone repressive mark H3K27me3 was significantly upregulated in the cardiomyocytes exposed to the ischemic condition. Then, we performed a high throughput drug screening assay using rat ventricular cardiomyocytes during the ischemic condition and screened an antioxidant compound library comprising of 84 drugs for H3K27ac by fluorescence microscopy. Our data revealed that most of the phenolic compounds like eugenol, apigenin, resveratrol, bis-demethoxy curcumin, D-gamma-tocopherol, ambroxol, and non-phenolic compounds like l-Ergothioneine, ciclopirox ethanolamine, and Tanshinone IIA have a crucial role in maintaining the cellular H3K27ac histone marks during the ischemic condition. Further, we tested the role of eugenol on cellular protection during ischemia. Our study shows that ischemia significantly reduces cellular viability and increases total reactive oxygen species (ROS), and mitochondrial ROS in the cells. Interestingly, eugenol treatment significantly restores the cellular acetylation at H3K27, decreases cellular ROS, and improves cellular viability. To explore the mechanism of eugenol-medicated inhibition of deacetylation, we performed a RNAseq experiment. Analysis of transcriptome data using IPA indicated that eugenol regulates several cellular functions associated with cardiovascular diseases, and metabolic processes. Further, we found that eugenol regulates the expression of HMGN1, CD151 and Ppp2ca genes during ischemia. Furthermore, we found that eugenol might protect the cells from ischemia through modulation of HMGN1 protein expression, which plays an active role in regulation of histone acetylation and cellular protection during stress. Thus, our study indicated that eugenol can be exploited as an agent to protect the ischemic cells and also could be used to develop a novel drug for treating cardiac disease.
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Affiliation(s)
- Puneet Kaur Randhawa
- Division of Metabolic and Cardiovascular Sciences, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Aishwarya Rajakumar
- Division of Metabolic and Cardiovascular Sciences, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Isabela Beatriz Futuro de Lima
- Division of Metabolic and Cardiovascular Sciences, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Manish K Gupta
- Division of Metabolic and Cardiovascular Sciences, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA.
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Cheng KI, Chang YC, Chu LW, Hsieh SL, An LM, Dai ZK, Wu BN. The Iridoid Glycoside Loganin Modulates Autophagic Flux Following Chronic Constriction Injury-Induced Neuropathic Pain. Int J Mol Sci 2022; 23:ijms232415873. [PMID: 36555516 PMCID: PMC9786894 DOI: 10.3390/ijms232415873] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/28/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022] Open
Abstract
Autophagy facilitates the degradation of organelles and cytoplasmic proteins in a lysosome-dependent manner. It also plays a crucial role in cell damage. Whether loganin affects autophagy in chronic constriction injury (CCI)-induced neuropathic pain remains unclear. We investigated the neuroprotective effect of loganin on the autophagic-lysosomal pathway in the rat CCI model. Sprague-Dawley rats were divided into sham, CCI, sham + loganin, and CCI + loganin. Loganin (5 mg/kg/day) was intraperitoneally injected once daily, and rats were sacrificed on day 7 after CCI. This study focused on the mechanism by which loganin modulates autophagic flux after CCI. CCI enhanced the autophagic marker LC3B-II in the ipsilateral spinal cord. The ubiquitin-binding protein p62 binds to LC3B-II and integrates into autophagosomes, which are degraded by autophagy. CCI caused the accumulation of p62, indicating the interruption of autophagosome turnover. Loganin significantly attenuated the expression of Beclin-1, LC3B-II, and p62. Double immunofluorescence staining was used to confirm that LC3B-II and p62 were reduced by loganin in the spinal microglia and astrocytes. Loganin also lessened the CCI-increased colocalization of both proteins. Enhanced lysosome-associated membrane protein 2 (LAMP2) and pro-cathepsin D (pro-CTSD) in CCI rats were also attenuated by loganin, suggesting that loganin improves impaired lysosomal function and autophagic flux. Loganin also attenuated the CCI-increased apoptosis protein Bax and cleaved caspase-3. Loganin prevents CCI-induced neuropathic pain, which could be attributed to the regulation of neuroinflammation, neuronal autophagy, and associated cell death. These data suggest autophagy could be a potential target for preventing neuropathic pain.
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Affiliation(s)
- Kuang-I Cheng
- Department of Anesthesiology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Yu-Chin Chang
- Department of Pharmacology, Graduate Institute of Medicine, College of Medicine, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Li-Wen Chu
- Department of Cosmetic Application and Management, Department of Nursing, Yuh-Ing Junior College of Health Care and Management, Kaohsiung 80776, Taiwan
| | - Su-Ling Hsieh
- Department of Pharmacy, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Li-Mei An
- Department of Pharmacology, Graduate Institute of Medicine, College of Medicine, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Zen-Kong Dai
- Department of Pediatrics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Pediatrics, Division of Pediatric Cardiology and Pulmonology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Correspondence: (Z.-K.D.); (B.-N.W.); Fax: +886-7-3208316 (Z.-K.D.); +886-7-3234686 (B.-N.W.)
| | - Bin-Nan Wu
- Department of Pharmacology, Graduate Institute of Medicine, College of Medicine, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Correspondence: (Z.-K.D.); (B.-N.W.); Fax: +886-7-3208316 (Z.-K.D.); +886-7-3234686 (B.-N.W.)
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Neuroprotective Mechanism of Icariin on Hypoxic Ischemic Brain Damage in Neonatal Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1330928. [DOI: 10.1155/2022/1330928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/07/2022] [Accepted: 10/27/2022] [Indexed: 11/16/2022]
Abstract
Objective. Our previous results showed that icariin (ICA) could inhibit apoptosis and provide neuroprotection against hypoxic-ischemic brain damage (HIBD) in neonatal mice, but the specific mechanism of its neuroprotective effect remains unknown. This study aims at exploring whether ICA plays a neuroprotective role in apoptosis inhibition by regulating autophagy through the estrogen receptor α (ERα)/estrogen receptor β (ERβ) pathway in neonatal mice with HIBD. Methods. A neonatal mouse model of HIBD was constructed in vivo, and an oxygen and glucose deprivation (OGD) model in HT22 cells from the hippocampal neuronal system was constructed in vitro. The effects of ICA pretreatment on autophagy and the expression of ERα and ERβ were detected in vitro and in vivo, respectively. ICA pretreatment was also supplemented with the autophagy inhibitor 3-methyladenine (3-MA), ERα inhibitor methylpiperidino pyrazole (MPP), and ERβ inhibitor 4-(2-phenyl-5,7-bis (trifluoromethyl) pyrazolo [1,5-a] pyramidin-3-yl) phenol (PHTPP) to further detect whether ICA pretreatment can activate the ERα/ERβ pathway to promote autophagy and reduce HIBD-induced apoptosis to play a neuroprotective role against HIBD in neonatal mice. Results. ICA pretreatment significantly promoted autophagy in HIBD mice. Treatment with 3-MA significantly inhibited the increase in autophagy induced by ICA pretreatment, reversed the neuroprotective effect of ICA pretreatment, and promoted apoptosis. Moreover, ICA pretreatment significantly increased the expression levels of the ERα and ERβ proteins in HIBD newborn mice. Both MPP and PHTPP administration significantly inhibited the expression levels of the ERα and ERβ proteins activated by ICA pretreatment, reversed the neuroprotective effects of ICA pretreatment, inhibited the increase in autophagy induced by ICA pretreatment, and promoted apoptosis. Conclusion. ICA pretreatment may promote autophagy by activating the ERα and ERβ pathways, thus reducing the apoptosis induced by HIBD and exerting a neuroprotective effect on neonatal mice with HIBD.
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Mechanistic Insights into the Neuroprotective Potential of Sacred Ficus Trees. Nutrients 2022; 14:nu14224731. [PMID: 36432418 PMCID: PMC9695857 DOI: 10.3390/nu14224731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/16/2022] [Accepted: 11/05/2022] [Indexed: 11/11/2022] Open
Abstract
Ficus religiosa (Bo tree or sacred fig) and Ficus benghalensis (Indian banyan) are of immense spiritual and therapeutic importance. Various parts of these trees have been investigated for their antioxidant, antimicrobial, anticonvulsant, antidiabetic, anti-inflammatory, analgesic, hepatoprotective, dermoprotective, and nephroprotective properties. Previous reviews of Ficus mostly discussed traditional usages, photochemistry, and pharmacological activities, though comprehensive reviews of the neuroprotective potential of these Ficus species extracts and/or their important phytocompounds are lacking. The interesting phytocompounds from these trees include many bengalenosides, carotenoids, flavonoids (leucopelargonidin-3-O-β-d-glucopyranoside, leucopelargonidin-3-O-α-l-rhamnopyranoside, lupeol, cetyl behenate, and α-amyrin acetate), flavonols (kaempferol, quercetin, myricetin), leucocyanidin, phytosterols (bergapten, bergaptol, lanosterol, β-sitosterol, stigmasterol), terpenes (α-thujene, α-pinene, β-pinene, α-terpinene, limonene, β-ocimene, β-bourbonene, β-caryophyllene, α-trans-bergamotene, α-copaene, aromadendrene, α-humulene, alloaromadendrene, germacrene, γ-cadinene, and δ-cadinene), and diverse polyphenols (tannin, wax, saponin, leucoanthocyanin), contributing significantly to their pharmacological effects, ranging from antimicrobial action to neuroprotection. This review presents extensive mechanistic insights into the neuroprotective potential, especially important phytochemicals from F. religiosa and F. benghalensis. Owing to the complex pathophysiology of neurodegenerative disorders (NDDs), the currently existing drugs merely alleviate the symptoms. Hence, bioactive compounds with potent neuroprotective effects through a multitarget approach would be of great interest in developing pharmacophores for the treatment of NDDs.
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Kostiuchenko O, Lushnikova I, Kowalczyk M, Skibo G. mTOR/α-ketoglutarate-mediated signaling pathways in the context of brain neurodegeneration and neuroprotection. BBA ADVANCES 2022; 2:100066. [PMID: 37082603 PMCID: PMC10074856 DOI: 10.1016/j.bbadva.2022.100066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022] Open
Abstract
Cerebral disorders are largely associated with impaired cellular metabolism, despite the regulatory mechanisms designed to ensure cell viability and adequate brain function. Mechanistic target of rapamycin (mTOR) signaling is one of the most crucial factors in the regulation of energy homeostasis and its imbalance is linked with a variety of neurodegenerative diseases. Recent advances in the metabolic pathways' modulation indicate the role of α-ketoglutarate (AKG) as a major signaling hub, additionally highlighting its anti-aging and neuroprotective properties, but the mechanisms of its action are not entirely clear. In this review, we analyzed the physiological and pathophysiological aspects of mTOR in the brain. We also discussed AKG's multifunctional properties, as well as mTOR/AKG-mediated functional communications in cellular metabolism. Thus, this article provides a broad overview of the mTOR/AKG-mediated signaling pathways, in the context of neurodegeneration and endogenous neuroprotection, with the aim to find novel therapeutic strategies.
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Fangma Y, Wan H, Shao C, Jin L, He Y. Research Progress on the Role of Sirtuin 1 in Cerebral Ischemia. Cell Mol Neurobiol 2022:10.1007/s10571-022-01288-3. [DOI: 10.1007/s10571-022-01288-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 09/15/2022] [Indexed: 11/29/2022]
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Zhao F, Peng C, Sun Y, Li H, Du K, Liu F. Potential application of traditional Chinese medicine in cerebral ischemia—Focusing on ferroptosis. Front Pharmacol 2022; 13:963179. [PMID: 36210857 PMCID: PMC9539431 DOI: 10.3389/fphar.2022.963179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 07/26/2022] [Indexed: 11/30/2022] Open
Abstract
Traditional Chinese medicine (TCM) has attracted a great deal of attention in the treatment of cerebral ischemia is credited with the remarkable neuroprotective effects. However, the imperfect functional mechanism of TCM is a major obstacle to their application. Many studies have been conducted to illustrate the pathophysiology of post-ischemic cerebral ischemia by elucidating the neuronal cell death pathway. Meanwhile, a new type of cell death, ferroptosis, is gradually being recognized in various diseases and is becoming a new pathway of therapeutic intervention strategy to solve many health problems. Especially since ferroptosis has been found to be closely involved into the pathogenesis of cerebral ischemia, it has been considered as a key target in the treatment of cerebral ischemia. Therefore, this paper reviews the latest research findings about the treatment of cerebral ischemia with TCM focused on ferroptosis as a target. Also, in order to explores the possibility of a new approach to treat cerebral ischemia with TCM, we discusses the correlation between ferroptosis and other cell death pathways such as apoptosis and autophagy, which would provide references for the following researches.
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Affiliation(s)
- Fengyan Zhao
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, China
| | - Caiwang Peng
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, China
| | - Yang Sun
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, China
| | - Hengli Li
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, China
| | - Ke Du
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Fang Liu
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, China
- *Correspondence: Fang Liu,
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Gao Y, Wang C, Jiang D, An G, Jin F, Zhang J, Han G, Cui C, Jiang P. New insights into the interplay between autophagy and oxidative and endoplasmic reticulum stress in neuronal cell death and survival. Front Cell Dev Biol 2022; 10:994037. [PMID: 36187470 PMCID: PMC9524158 DOI: 10.3389/fcell.2022.994037] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/30/2022] [Indexed: 12/03/2022] Open
Abstract
Autophagy is a dynamic process that maintains the normal homeostasis of cells by digesting and degrading aging proteins and damaged organelles. The effect of autophagy on neural tissue is still a matter of debate. Some authors suggest that autophagy has a protective effect on nerve cells, whereas others suggest that autophagy also induces the death of nerve cells and aggravates nerve injury. In mammals, oxidative stress, autophagy and endoplasmic reticulum stress (ERS) constitute important defense mechanisms to help cells adapt to and survive the stress conditions caused by physiological and pathological stimuli. Under many pathophysiological conditions, oxidative stress, autophagy and ERS are integrated and amplified in cells to promote the progress of diseases. Over the past few decades, oxidative stress, autophagy and ERS and their interactions have been a hot topic in biomedical research. In this review, we summarize recent advances in understanding the interactions between oxidative stress, autophagy and ERS in neuronal cell death and survival.
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Affiliation(s)
- Yahao Gao
- Clinical Medical School, Jining Medical University, Jining, China
| | - Changshui Wang
- Department of Neurosurgery, Affiliated Hospital of Jining Medical University, Jining, China
| | - Di Jiang
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Gang An
- Clinical Medical School, Jining Medical University, Jining, China
| | - Feng Jin
- Department of Neurosurgery, Affiliated Hospital of Jining Medical University, Jining, China
| | - Junchen Zhang
- Department of Neurosurgery, Affiliated Hospital of Jining Medical University, Jining, China
| | - Guangkui Han
- Department of Neurosurgery, Affiliated Hospital of Jining Medical University, Jining, China
| | - Changmeng Cui
- Department of Neurosurgery, Affiliated Hospital of Jining Medical University, Jining, China
- *Correspondence: Changmeng Cui, ; Pei Jiang,
| | - Pei Jiang
- Department of Clinical Pharmacy, Jining First People’s Hospital, Jining Medical University, Jining, China
- *Correspondence: Changmeng Cui, ; Pei Jiang,
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Xie J, Zhang T, Li P, Wang D, Liu T, Xu S. Dihydromyricetin Attenuates Cerebral Ischemia Reperfusion Injury by Inhibiting SPHK1/mTOR Signaling and Targeting Ferroptosis. Drug Des Devel Ther 2022; 16:3071-3085. [PMID: 36118165 PMCID: PMC9477154 DOI: 10.2147/dddt.s378786] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/31/2022] [Indexed: 11/23/2022] Open
Abstract
Background Dihydromyricetin (DHM) exerts protective effects in various brain diseases. The aim of this research was to investigate the biological role of DHM in cerebral ischemia reperfusion (I/R) injury. Methods We generated a rat model of cerebral I/R injury by performing middle cerebral artery occlusion/reperfusion (MCAO/R). The neurological score and brain water content of the experimental rats was then evaluated. The infarct volume and extent of apoptosis in brain tissues was then assessed by 2,3,5-triphenyltetrazolium (TTC) and TdT-mediated dUTP nick end labeling (TUNEL) staining. Hippocampal neuronal cells (HT22) were subjected to oxygen-glucose deprivation/reperfusion (OGD/R) and cell counting kit-8 (CCK-8) assays and flow cytometry were performed to detect cell viability and apoptosis. The levels of lipid reactive oxygen species (ROS) and iron were detected and the expression levels of key proteins were assessed by Western blotting. Results DHM obviously reduced neurological deficits, brain water content, infarct volume and cell apoptosis in the brain tissues of MCAO/R rats. DHM repressed ferroptosis and inhibited the sphingosine kinase 1 (SPHK1)/mammalian target of rapamycin (mTOR) pathway in MCAO/R rats. In addition, DHM promoted cell viability and repressed apoptosis in OGD/R-treated HT22 cells. DHM also suppressed the levels of lipid ROS and intracellular iron in OGD/R-treated HT22 cells. The expression levels of glutathione peroxidase 4 (GPX4) was enhanced while the levels of acyl-CoA synthetase long-chain family member 4 (ACSL4) and phosphatidylethanolamine binding protein 1 (PEBP1) were reduced in OGD/R-treated HT22 cells in the presence of DHM. Moreover, the influence conferred by DHM was abrogated by the overexpression of SPHK1 or treatment with MHY1485 (an activator of mTOR). Conclusion This research demonstrated that DHM repressed ferroptosis by inhibiting the SPHK1/mTOR signaling pathway, thereby alleviating cerebral I/R injury. Our findings suggest that DHM may be a candidate drug for cerebral I/R injury treatment.
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Affiliation(s)
- Jiangbo Xie
- Department of Neurology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
- Department of Neurology, Weifang Traditional Chinese Hospital, Weifang, People’s Republic of China
| | - Tingting Zhang
- Department of Rehabilitation Medicine, Weifang Traditional Chinese Hospital, Weifang, People’s Republic of China
| | - Peichun Li
- Department of Rehabilitation Medicine, Weifang Traditional Chinese Hospital, Weifang, People’s Republic of China
| | - Dong Wang
- Department of Neurology, Weifang Traditional Chinese Hospital, Weifang, People’s Republic of China
| | - Tao Liu
- Department of Neurology, Weifang Traditional Chinese Hospital, Weifang, People’s Republic of China
| | - Shunliang Xu
- Department of Neurology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
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Wang L, Dai M, Ge Y, Chen J, Wang C, Yao C, Lin Y. EGCG protects the mouse brain against cerebral ischemia/reperfusion injury by suppressing autophagy via the AKT/AMPK/mTOR phosphorylation pathway. Front Pharmacol 2022; 13:921394. [PMID: 36147330 PMCID: PMC9489224 DOI: 10.3389/fphar.2022.921394] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
Stroke remains one of the leading reasons of mortality and physical disability worldwide. The treatment of cerebral ischemic stroke faces challenges, partly due to a lack of effective treatments. In this study, we demonstrated that autophagy was stimulated by transient middle cerebral artery occlusion/reperfusion (MCAO/R) and oxygen-glucose deprivation/reoxygenation (OGD/R). Treatment with (−)-epigallocatechin-3-gallate (EGCG), a bioactive ingredient in green tea, was able to mitigate cerebral ischemia/reperfusion injury (CIRI), given the evidence that EGCG administration could reduce the infarct volume and protect poststroke neuronal loss in MCAO/R mice in vivo and attenuate cell loss in OGD/R-challenged HT22 cells in vitro through suppressing autophagy activity. Mechanistically, EGCG inhibited autophagy via modulating the AKT/AMPK/mTOR phosphorylation pathway both in vivo and in vitro models of stroke, which was further confirmed by the results that the administration of GSK690693, an AKT/AMPK inhibitor, and rapamycin, an inhibitor of mTOR, reversed aforementioned changes in autophagy and AKT/AMPK/mTOR signaling pathway. Overall, the application of EGCG relieved CIRI by suppressing autophagy via the AKT/AMPK/mTOR phosphorylation pathway.
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Affiliation(s)
- Li Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Maosha Dai
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yangyang Ge
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiayi Chen
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chenchen Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chengye Yao
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Chengye Yao, ; Yun Lin,
| | - Yun Lin
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Chengye Yao, ; Yun Lin,
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Wang T, Liu C. Role of hypoxia inducible factor 1α/Bcl-2/adenovirus E1B 19-kDa interacting protein 3 in alleviating effect of interleukin-4 on cerebral ischemia reperfusion injury in mice. Afr Health Sci 2022; 22:369-374. [PMID: 36910409 PMCID: PMC9993290 DOI: 10.4314/ahs.v22i3.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Cerebral ischemia reperfusion injury (CIRI) is the pathophysiological basis of various cerebrovascular diseases. The aim of this study was to explore the role of HIF-1α/BNIP3 in the alleviating effect of IL-4 on CIRI in mice. Methodology Mice were randomly divided into sham operation (Sham), ischemia reperfusion (IR), IL-4, HIF-1α inhibitor 2ME2 and IL-4+2ME2 groups. Middle cerebral artery occlusion model was established. After 24-h reperfusion, neurologic deficit score (NDS) was given. Cerebral infarction volume and brain water content were measured by 2,3,5-triphenyltetrazolium chloride staining and dry-wet weights, respectively. Apoptosis was detected by TUNEL staining. SOD, MDA and ROS levels, and HIF-1α, BNIP3, LC3II and Beclin-1 expressions were detected through colorimetry and Western blotting, respectively. Results Compared with IR group, NDS, cerebral infarction volume, brain water content, apoptosis rate, and MDA and ROS levels decreased, while SOD, HIF-1α, BNIP3, LC3-II and Beclin-1 levels increased in IL-4 group (P<0.05). 2ME2 and IL-4+2ME2 groups had decreased NDS, cerebral infarction volume, brain water content, apoptosis rate and MDA, ROS, HIF-1α, BNIP3, LC3-II and Beclin-1 levels, but increased SOD level compared with those of IL-4 group (P<0.05). Conclusion IL-4 reduces apoptosis and oxidative stress through activating the HIF-1α/BNIP3 pathway, thereby alleviating mouse CIRI.
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Affiliation(s)
- Tianjing Wang
- Department of Geriatrics, Daqing Oilfield General Hospital, Daqing 163001, Heilongjiang Province, China
| | - Chang Liu
- Department of Neurology, Daqing Oilfield General Hospital, Daqing 163001, Heilongjiang Province, China
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Fu Z, Pang Z, He L, Zhang L, Fan Y, Zhao C, Yang J. Dexmedetomidine Confers Protection Against Neuronal Oxygen Glucose Deprivation-Reperfusion by Regulating SIRT3 Mediated Autophagy. Neurochem Res 2022; 47:3490-3505. [PMID: 36042140 DOI: 10.1007/s11064-022-03712-y] [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: 04/29/2021] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 12/01/2022]
Abstract
Dexmedetomidine (Dex) plays protective effects on brain ischemia-reperfusion (I/R) injury, but its mechanism remains unclear. In this study, we aimed to investigate whether Dex protects neurons against I/R injury by activating SIRT3 mediated autophagy. The oxygen glucose deprivation-reperfusion (OGD/R) model was constructed in HT22 cells. Different doses of Dex (50 ng/mL, 100 ng/mL and 500 ng/mL) were treated to observe the changes of autophagy and SIRT3 expression. Further, the mimic of SIRT3 and SIRT3 inhibitor were used to analyze the effects of Dex on the SIRT3 expression in HT22 cells. Additionally, the autophagy inhibitor and AMPK inhibitor were used to analyze the effects of Dex on SIRT3 mediated autophagy. The cells viability, oxidative stress and ATP were observed using assay kits. The mitochondrial membrane potential (MMP) and death were analyzed by flow cytometry. The degree of autophagy was observed by acridine orange staining. Western blotting was used to analyze the expression of autophagy related proteins and AMPK/mTOR pathway related proteins. After Dex treatment, the OGD/R induced cell injury was significantly improved through decreasing the levels of LDH and H2O2, increasing levels of ATP and MMP. Furthermore, Dex increased the degree of autophagy and expression of SIRT3 in OGD/R injured cells. Through overexpression of SIRT3, the OGD/R induced cell injury was also clearly improved. But the SIRT3 inhibitor or autophagy inhibitor covered the roles of Dex. Additionally, AMPK inhibitor played an opposite role compared with the effects of Dex treatment. From this study, the protection mechanism of Dex on neurons I/R injury might related to the activation of SIRT3 mediated autophagy.
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Affiliation(s)
- Zhijie Fu
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1, Longhu Central Ring Road, Zhengzhou, 450000, Henan Province, China
| | - Zhilu Pang
- Department of Anesthesiology, Pain and Perioperative Medicine, Henan Provincial People's Hospital, Zhengzhou, 450000, China
| | - Long He
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1, Longhu Central Ring Road, Zhengzhou, 450000, Henan Province, China
| | - Le Zhang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1, Longhu Central Ring Road, Zhengzhou, 450000, Henan Province, China
| | - Yuning Fan
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1, Longhu Central Ring Road, Zhengzhou, 450000, Henan Province, China
| | - Can Zhao
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1, Longhu Central Ring Road, Zhengzhou, 450000, Henan Province, China
| | - Jianjun Yang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1, Longhu Central Ring Road, Zhengzhou, 450000, Henan Province, China.
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Islam F, Bepary S, Nafady MH, Islam MR, Emran TB, Sultana S, Huq MA, Mitra S, Chopra H, Sharma R, Sweilam SH, Khandaker MU, Idris AM. Polyphenols Targeting Oxidative Stress in Spinal Cord Injury: Current Status and Future Vision. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8741787. [PMID: 36046682 PMCID: PMC9423984 DOI: 10.1155/2022/8741787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/03/2022] [Accepted: 08/03/2022] [Indexed: 02/07/2023]
Abstract
A spinal cord injury (SCI) occurs when the spinal cord is deteriorated or traumatized, leading to motor and sensory functions lost even totally or partially. An imbalance within the generation of reactive oxygen species and antioxidant defense levels results in oxidative stress (OS) and neuroinflammation. After SCI, OS and occurring pathways of inflammations are significant strenuous drivers of cross-linked dysregulated pathways. It emphasizes the significance of multitarget therapy in combating SCI consequences. Polyphenols, which are secondary metabolites originating from plants, have the promise to be used as alternative therapeutic agents to treat SCI. Secondary metabolites have activity on neuroinflammatory, neuronal OS, and extrinsic axonal dysregulated pathways during the early stages of SCI. Experimental and clinical investigations have noted the possible importance of phenolic compounds as important phytochemicals in moderating upstream dysregulated OS/inflammatory signaling mediators and axonal regeneration's extrinsic pathways after the SCI probable significance of phenolic compounds as important phytochemicals in mediating upstream dysregulated OS/inflammatory signaling mediators. Furthermore, combining polyphenols could be a way to lessen the effects of SCI.
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Affiliation(s)
- Fahadul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Sristy Bepary
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Mohamed H. Nafady
- Faculty of Applied Health Science Technology, Misr University for Science and Technology, Giza, Egypt
| | - Md. Rezaul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
| | - Sharifa Sultana
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Md. Amdadul Huq
- Department of Food and Nutrition, Chung Ang University, Anseong-Si, Gyeonggi-Do 17546, Republic of Korea
| | - Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India
| | - Rohit Sharma
- Department of Rasashastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Sherouk Hussein Sweilam
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Egyptian Russian University, Cairo-Suez Road, Badr City 11829, Egypt
| | - Mayeen Uddin Khandaker
- Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500 Bandar Sunway, Selangor, Malaysia
| | - Abubakr M. Idris
- Department of Chemistry, College of Science, King Khalid University, Abha 62529, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 62529, Saudi Arabia
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The role of AMPK-Sirt1-autophagy pathway in the intestinal protection process by propofol against regional ischemia/reperfusion injury in rats. Int Immunopharmacol 2022; 111:109114. [PMID: 35933747 DOI: 10.1016/j.intimp.2022.109114] [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: 05/05/2022] [Revised: 07/21/2022] [Accepted: 07/28/2022] [Indexed: 11/05/2022]
Abstract
Intestinal ischemia/reperfusion (II/R) is a clinical event associated with high morbidity and mortality. AMP-activated protein kinase (AMPK), a central cellular energy sensor, is associated with oxidative stress and inflammation. However, whether the AMPK is involved in the II/R-induced intestinal injury and the underlying mechanism is yet to be elucidated. Propofol has a protective effect on organs; yet, its specific mechanism of action remains unclear. This study explored the role of the AMPK-Sirt1-autophagy pathway in intestinal injury, and whether propofol could reduce intestinal injury and investigated the mechanisms in a rat model of II/R injury as well as a cell model (IEC-6 cells) of hypoxia/reoxygenation (H/R). Propofol, AMPK agonist (AICAR) and AMPK inhibitor (Compound C) were then administered, respectively. The histopathological changes, cell viability and apoptosis were detected. Furthermore, the levels of proinflammatory factors, the activities of oxidative stress, diamine oxidase, and signaling pathway were also analyzed. The results demonstrated that the AMPK-Sirt1-autophagy pathway of intestine was activated after II/R or H/R. Propofol could further activate the pathway, which reduced intestinal injury, inhibited apoptosis, reversed inflammation and oxidative stress, and improved the 24-hour survival rate in II/R rats in vivo, and attenuated H/R-induced IEC-6 cell injury, oxidative stress, and apoptosis in vitro, as fine as changes in AICAR treatment. Compound C abrogated the protective effect of propofol on II/R and H/R-induced injury. These results suggested a crucial effect of AMPK on the mechanism of intestinal injury and might provide a new insight into the mechanism of propofol reducing II/R injury.
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Ding L, Ye H, Gu LD, Du AQ, Yuan XL. Echinacoside Alleviates Cognitive Impairment in Cerebral Ischemia Rats through α 7nAChR-Induced Autophagy. Chin J Integr Med 2022; 28:809-816. [PMID: 35799084 DOI: 10.1007/s11655-022-2893-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To evaluate the effect of echinacoside (ECH) on cognitive dysfunction in post cerebral stroke model rats. METHODS The post stroke cognitive impairment rat model was created by occlusion of the transient middle cerebral artery (MCAO). The rats were randomly divided into 3 groups by a random number table: the sham group (sham operation), the MCAO group (received operation for focal cerebral ischemia), and the ECH group (received operation for focal cerebral ischemia and ECH 50 mg/kg per day), with 6 rats in each group. The infarct volume and spatial learning were evaluated by triphenyl tetrazolium chloride staining and Morris water maze. The expression of α7nAChR in the hippocampus was detected by immunohistochemistry. The contents of acetylcholine (ACh), malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD), activities of choline acetyltransferase (ChAT), acetylcholinesterase (AChE), and catalase (CAT) were evaluated by enzyme linked immunosorbent assay. The neural apoptosis and autophagy were determined by TUNEL staining and LC3 staining, respectively. RESULTS ECH significantly lessened the brain infarct volume and ameliorated neurological deficit in infarct volume and water content (both P<0.01). Compared with MCAO rats, administration of ECH revealed shorter escape latency and long retention time at 7, 14 and 28 days (all P<0.01), increased the α7nAChR protein expression, ACh content, and ChAT activity, and decreased AChE activity in MCAO rats (all P<0.01). ECH significantly decreased MDA content and increased the GSH content, SOD, and CAT activities compared with MCAO rats (all P<0.05). ECH suppressed neuronal apoptosis by reducing TUNEL-positive cells and also enhanced autophagy in MCAO rats (all P<0.01). CONCLUSION ECH treatment helped improve cognitive impairment by attenuating neurological damage and enhancing autophagy in MCAO rats.
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Affiliation(s)
- Ling Ding
- Department of Endocrinology and Metabolic Diseases, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Hong Ye
- Department of Endocrinology and Metabolic Diseases, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Long-Dian Gu
- Department of Endocrinology and Metabolic Diseases, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - An-Qing Du
- Department of Endocrinology and Metabolic Diseases, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Xin-Lu Yuan
- Department of Endocrinology and Metabolic Diseases, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China.
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He L, Tong J. Resveratrol Protects Against Nicotine-Induced Apoptosis by Enhancing Autophagy in BEAS-2B Lung Epithelial Cells. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221109410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
Background: Nicotine (Nic), the major component of tobacco products, can induce apoptosis in lung epithelial cells, and the resulting damage contributes to chronic obstructive pulmonary disease. Apoptosis is closely related to autophagy. Resveratrol (Res) can induce autophagy and inhibit apoptosis. Therefore, the present study investigated whether Nic induces apoptosis of lung epithelial cells by regulating autophagy and the effect of Res on apoptosis of Nic-exposed lung epithelial cells. Methods: The BEAS-2B lung epithelial cell line was used to study the harmful effects of Nic and the potential benefits of Res as well as the underlying mechanisms. Viability and apoptosis were examined using the Cell Counting Kit-8 and annexin V-propidium iodide staining, respectively. The expression of levels of apoptosis-related proteins, autophagy-related proteins, and members of the PI3K/Akt/mTOR pathway was measured by western blotting. Autophagic flux was detected via mRFP-GFP-LC3 double-labeled adenovirus transfection and transmission electron microscopy. Results: Nic significantly reduce the viability and increased the apoptosis of BEAS-2B cells in a concentration-dependent manner. Nic treatment also increased the numbers of autophagosomes in BEAS-2B cells and upregulated LC3II and p62 expression. Moreover, Res at concentration of 2, 10, and 50 μM protected BEAS-2B cells from Nic apoptosis, and the expression of LC3II increased further and p62 decreased in Res pretreatment group. Apart from this, Res reduced Akt and mTOR phosphorylation. Subsequently, upon inhibiting PI3K phosphorylation by PI3K inhibitors, BEAS-2B cell autophagy induced by Res was obviously abolished. Conclusions: Nic-induced BEAS-2B cell apoptosis by inhibiting the late-stage autophagic flux, but Res could protect BEAS-2B cells from the detrimental effects of nicotine by enhancing autophagy via the PI3K/Akt/mTOR pathway. These results will provide an experimental basis for the prevention and treatment of COPD.
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Affiliation(s)
- Li He
- Department of Critical Care Medicine, The Central Hospital of Dazhou, Dazhou, Sichuan, China
| | - Jin Tong
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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Gao J, Liu J, Yao M, Zhang W, Yang B, Wang G. Panax notoginseng Saponins Stimulates Neurogenesis and Neurological Restoration After Microsphere-Induced Cerebral Embolism in Rats Partially Via mTOR Signaling. Front Pharmacol 2022; 13:889404. [PMID: 35770087 PMCID: PMC9236302 DOI: 10.3389/fphar.2022.889404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/23/2022] [Indexed: 11/30/2022] Open
Abstract
P. Notoginseng Saponins (PNS), the main active component of herbal medicine Panax notoginseng, has been widely used to treat cerebrovascular diseases. It has been acknowledged that PNS exerted protection on nerve injuries induced by ischemic stroke, however, the long-term impacts of PNS on the restoration of neurological defects and neuroregeneration after stroke have not been thoroughly studied and the underlying molecular mechanism of stimulating neurogenesis is difficult to precisely clarify, much more in-depth researches are badly needed. In the present study, cerebral ischemia injury was induced by microsphere embolism (ME) in rats. After 14 days, PNS administration relieved cerebral ischemia injury as evidenced by alleviating neurological deficits and reducing hippocampal pathological damage. What’s more, PNS stimulated hippocampal neurogenesis by promoting cell proliferation, migration and differentiation activity and modulated synaptic plasticity. Increased number of BrdU/Nestin, BrdU/DCX and NeuroD1-positive cells and upregulated synapse-related GAP43, SYP, and PSD95 expression were observed in the hippocampus. We hypothesized that upregulation of brain-derived neurotrophic factor (BDNF) expression and activation of Akt/mTOR/p70S6K signaling after ME could partially underlie the neuroprotective effects of PNS against cerebral ischemia injury. Our findings offer some new viewpoints into the beneficial roles of PNS against ischemic stroke.
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Affiliation(s)
- Jiale Gao
- Beijing Key Laboratory of Pharmacology of Chinese Materia Medica, Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jianxun Liu
- Beijing Key Laboratory of Pharmacology of Chinese Materia Medica, Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Jianxun Liu,
| | - Mingjiang Yao
- Beijing Key Laboratory of Pharmacology of Chinese Materia Medica, Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wei Zhang
- Department of Pathology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Bin Yang
- Department of Pathology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Guangrui Wang
- Beijing Key Laboratory of Pharmacology of Chinese Materia Medica, Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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Truzzi F, Whittaker A, D’Amen E, Tibaldi C, Abate A, Valerii MC, Spisni E, Dinelli G. Wheat Germ Spermidine and Clove Eugenol in Combination Stimulate Autophagy In Vitro Showing Potential in Supporting the Immune System against Viral Infections. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27113425. [PMID: 35684363 PMCID: PMC9182079 DOI: 10.3390/molecules27113425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/21/2022] [Accepted: 05/23/2022] [Indexed: 12/02/2022]
Abstract
Impaired autophagy, responsible for increased inflammation, constitutes a risk factor for the more severe COVID-19 outcomes. Spermidine (SPD) is a known autophagy modulator and supplementation for COVID-19 risk groups (including the elderly) is recommended. However, information on the modulatory effects of eugenol (EUG) is scarce. Therefore, the effects of SPD and EUG, both singularly and in combination, on autophagy were investigated using different cell lines (HBEpiC, SHSY5Y, HUVEC, Caco-2, L929 and U937). SPD (0.3 mM), EUG (0.2 mM) and 0.3 mM SPD + 0.2 mM EUG, significantly increased autophagy using the hallmark measure of LC3-II protein accumulation in the cell lines without cytotoxic effects. Using Caco-2 cells as a model, several crucial autophagy proteins were upregulated at all stages of autophagic flux in response to the treatments. This effect was verified by the activation/differentiation and migration of U937 monocytes in a three-dimensional reconstituted intestinal model (Caco-2, L929 and U937 cells). Comparable benefits of SPD, EUG and SPD + EUG in inducing autophagy were shown by the protection of Caco-2 and L929 cells against lipopolysaccharide-induced inflammation. SPD + EUG is an innovative dual therapy capable of stimulating autophagy and reducing inflammation in vitro and could show promise for COVID-19 risk groups.
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Affiliation(s)
- Francesca Truzzi
- Department of Agricultural and Food Sciences, Alma Mater Studiorum-University of Bologna, 40127 Bologna, Italy; (A.W.); (E.D.); (C.T.); (A.A.); (G.D.)
- Correspondence: ; Tel.: +39-051-2096674
| | - Anne Whittaker
- Department of Agricultural and Food Sciences, Alma Mater Studiorum-University of Bologna, 40127 Bologna, Italy; (A.W.); (E.D.); (C.T.); (A.A.); (G.D.)
| | - Eros D’Amen
- Department of Agricultural and Food Sciences, Alma Mater Studiorum-University of Bologna, 40127 Bologna, Italy; (A.W.); (E.D.); (C.T.); (A.A.); (G.D.)
| | - Camilla Tibaldi
- Department of Agricultural and Food Sciences, Alma Mater Studiorum-University of Bologna, 40127 Bologna, Italy; (A.W.); (E.D.); (C.T.); (A.A.); (G.D.)
| | - Antonella Abate
- Department of Agricultural and Food Sciences, Alma Mater Studiorum-University of Bologna, 40127 Bologna, Italy; (A.W.); (E.D.); (C.T.); (A.A.); (G.D.)
| | - Maria Chiara Valerii
- Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum-University of Bologna, 40127 Bologna, Italy; (M.C.V.); (E.S.)
| | - Enzo Spisni
- Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum-University of Bologna, 40127 Bologna, Italy; (M.C.V.); (E.S.)
| | - Giovanni Dinelli
- Department of Agricultural and Food Sciences, Alma Mater Studiorum-University of Bologna, 40127 Bologna, Italy; (A.W.); (E.D.); (C.T.); (A.A.); (G.D.)
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Yuan Y, Xia F, Gao R, Chen Y, Zhang Y, Cheng Z, Zhao H, Xu L. Kaempferol Mediated AMPK/mTOR Signal Pathway Has a Protective Effect on Cerebral Ischemic-Reperfusion Injury in Rats by Inducing Autophagy. Neurochem Res 2022; 47:2187-2197. [PMID: 35524892 DOI: 10.1007/s11064-022-03604-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 11/30/2022]
Abstract
Ischemia/reperfusion (I/R) caused by ischemic stroke treatments leads to brain injury and its pathological mechanism is related to autophagy. The underlying mechanism of kaempferol on cerebral I/R injury needs to be explored. To establish I/R injury, we used a middle cerebral artery occlusion-reperfusion (MCAO) model in rats. MCAO rats were treated with the same amount of saline (I/R group); Treatment group rats were treated orally with kaempferol (50, 100, 200 mg/kg) for 7 days before surgery. After reperfusion for 24 h, the scores of neurological deficits and infarct volume in each group were evaluated. LC3, Beclin-1 p62, AMPK and mTOR protein expression levels were examined by TTC staining, immunofluorescence staining, qRT-PCR and western blotting assay. H&E and TTC staining showed that compared with model group, the infarction size of rats in kaempferol group was markedly reduced. Meanwhile, the results showed that kaempferol had a dose-dependent nerve function repairability. Nissl and TUNEL staining showed that kaempferol could reduce neuronal apoptosis and ameliorate neuronal impairment after I/R. Western blotting and qRT-PCR results showed that kaempferol could protect the brain from ischemia reperfusion by activating autophagy. In addition, add AMPK inhibitor, western blotting and immumohistochemical staining showed that kaempferol mediated AMPK/mTOR signal pathway in MCAO rats. Kaempferol could mediate the AMPK signal pathway to regulate autophagy and inhibit apoptosis to protect brain against I/R injury.
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Affiliation(s)
- Yajing Yuan
- Department of Anesthesia, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300052, People's Republic of China
| | - Fei Xia
- Department of Anesthesia, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300052, People's Republic of China
| | - Rong Gao
- Department of Pathology, Gansu Medical College, Lanzhou, 730050, Gansu, People's Republic of China
| | - Yang Chen
- Department of Radiation Oncology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China
| | - Yu Zhang
- Department of Anesthesia, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300052, People's Republic of China
| | - Zhongping Cheng
- Department of Anesthesia, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300052, People's Republic of China
| | - Hongwei Zhao
- Department of Anesthesia, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300052, People's Republic of China
| | - Liming Xu
- Department of Radiation Oncology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China.
- Tianjin Medical University Cancer Institute & Hospital, HuanhuXi Road, TiYuanBei, He Xi District, Tianjin, 300060, China.
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Dai Y, Yan M, Wan J, Xiao T. Maf1 mitigates sevoflurane-induced microglial inflammatory damage and attenuates microglia-mediated neurotoxicity in HT-22 cells by activating the AMPK/Nrf2 signaling. Neurotoxicology 2022; 90:237-245. [PMID: 35430185 DOI: 10.1016/j.neuro.2022.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 02/26/2022] [Accepted: 04/11/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Maf1 has been found to play protective function against neuroinflammation and neuroapoptosis. This study seeks to explore whether and how Maf1 is involved in sevoflurane (Sev)-induced neuroinflammation and microglia-mediated neurotoxicity. METHODS qRT-PCR and western blot were used to detect the gene expression. ELISA was used to detect inflammatory factors. Cell viability was evaluated by using the Cell Counting Kit-8 kit. Neuroapoptosis was assessed with trhe Caspase-3 Assay Kit and the terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick-end labeling (TUNEL) technique. RESULTS Maf1 expression was downregulated in Sev-stimulated BV2 microglial cells. Maf1 overexpression down-regulates the expression of pro-inflammatory M1-type markers (CD86, iNOS, IFN-γ) and up-regulates the expression of anti-inflammatory M2-type markers (CD206, TGF-β, Arg-1), and Maf1 reduces the Sev-induced inflammatory response in BV2 cells. After Maf1 overexpression, the relative expression of p-AMPK/AMPK and nucleus-Nrf2 increased significantly in BV2 cells treated with Sev. Inhibition of AMPK/Nrf2 pathway by compound C reverses anti-inflammatory effect of Maf1 in Sev-stimulated BV2 cells. Compound C reverses the effect of Maf1 on microglia-mediated neurotoxicity in HT-22 hippocampal neuronal cells. CONCLUSIONS Maf1 mitigates Sev-induced microglial inflammatory damage and attenuates microglia-mediated neurotoxicity by activating the AMPK/Nrf2 signaling.
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Affiliation(s)
- Yunyi Dai
- Department of Neurology, The First People's Hospital of Shangqiu, China
| | - Mingguang Yan
- Department of Laboratory Medicine, The First People's Hospital of Shangqiu, China
| | - Juan Wan
- Department of Neurology, The First Affiliated Hospital, Hengyang Medical School, University of South China, China
| | - Tao Xiao
- Department of Neurosurgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, China.
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Zhao X, Liu J, Yang L, Niu Y, Ren R, Su C, Wang Y, Chen J, Ma X. Beneficial effects of mijianchangpu decoction on ischemic stroke through components accessing to the brain based on network pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114882. [PMID: 34848358 DOI: 10.1016/j.jep.2021.114882] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE To explore the effective components, potential targets and neuroprotective related mechanisms of Mijianchangpu decoction (MJCPD), a well-known TCM used by the Chinese Hui minorities to treat stroke, on the prevention and treatment of ischemic stroke (IS) by using experimental models combined with network pharmacology. MATERIALS AND METHODS The neuroprotective efficacy of MJCPD was estimated by applying the middle cerebral artery occlusion (MCAO) induced cerebral ischemia rats, and the neurological deficits score, TTC and HE staining as well as behavioral evaluation tests were employed to evaluate the beneficial effects. Meanwhile, the bioactive components of MJCPD responsible for the neuroprotective effects were identified by detecting the constituents in the brain of the MCAO rats with UHPLC-QTOF-MS/MS techniques, and these compounds were then underwent for network pharmacology analysis. Firstly, the targets of the bioactive compounds of MJCPD were predicted using Pharmmapper database, and simultaneously, the targets of IS disease were obtained from disease databases including DisGenet, OMIM, and GeneCards. Secondly, the protein-protein interaction (PPI) network between the targets and diseases were established to give the possible therapeutic targets for IS. Thirdly, the go function and KEGG pathway enrichment analysis were carried out and the compound-target-pathway network was constructed by Cytoscape software. Finally, the effective compounds, core targets and possible pathways were obtained by analyzing the connectivity of the network. More importantly, the core targets were verified by western blot experiments to validate the reliability of this study. RESULTS MJCPD exhibited significant neuroprotective effect on IS, and 16 bioactive components of MJCPD were identified in the brain of the MCAO rats. 59 and 1982 targets related with IS disease were explored from Pharmapper and disease databases, respectively, and 32 intersecting targets were obtained as hypothetical therapeutic targets. Based on the results of the compound-target-pathway and PPI network with the degree was greater than the median, 8 effective compounds (suberic acid, epishyobunone, crocetin monomethyl ester, sfaranal, (Z)-6-octadccenoic acid, nerolidol and gurjunene) and 5 hub targets (SRC, MAPK8, MAPK14, EGFR and MAPK1) as well as 12 pathways were predicted. Western blot results showed that EGFR, p38, ERK and SRC proteins were expressed significantly different after MJCPD treatment as compared with the model group. CONCLUSION The present study employed network pharmacology, pharmacodynamics and molecular biology techniques to predict and validate the core potential targets and signaling pathways as well as the bioactive components of MJCPD responsible for the treatment of IS. All of which are very helpful to clarify the neuroprotective mechanism of MJCPD, and obviously, the active compounds and targets in this study can also provide clues for the treatment of IS.
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Affiliation(s)
- Xiaojun Zhao
- Department of Pharmaceutical analysis, School of Pharmacy, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China.
| | - Jingjing Liu
- Department of Pharmaceutical analysis, School of Pharmacy, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China; School of Pharmacy, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China.
| | - Lingling Yang
- Department of Pharmaceutical analysis, School of Pharmacy, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China.
| | - Yang Niu
- Department of Pharmaceutical analysis, School of Pharmacy, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China.
| | - Ruru Ren
- Department of Pharmaceutical analysis, School of Pharmacy, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China.
| | - Chao Su
- Department of Pharmaceutical analysis, School of Pharmacy, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China.
| | - Yingli Wang
- Department of Pharmaceutical analysis, School of Pharmacy, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China.
| | - Jianyu Chen
- Fujian University of Traditional Chinese Medicine, No. 1, Huatuo Road, Minhoushangjie, Fuzhou, 350122, China.
| | - Xueqin Ma
- Department of Pharmaceutical analysis, School of Pharmacy, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China.
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Platonin protects against cerebral ischemia/reperfusion injury in rats by inhibiting NLRP3 inflammasomes via BNIP3/LC3 signaling mediated autophagy. Brain Res Bull 2022; 180:12-23. [DOI: 10.1016/j.brainresbull.2021.12.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/04/2021] [Accepted: 12/20/2021] [Indexed: 12/26/2022]
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Yang X, Wang M, Zhou Q, Bai Y, Liu J, Yang J, Li L, Li G, Luo L. Macamide B Pretreatment Attenuates Neonatal Hypoxic-Ischemic Brain Damage of Mice Induced Apoptosis and Regulates Autophagy via the PI3K/AKT Signaling Pathway. Mol Neurobiol 2022; 59:2776-2798. [PMID: 35190953 DOI: 10.1007/s12035-022-02751-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/16/2022] [Indexed: 01/19/2023]
Abstract
Lepidium meyenii (maca) is an annual or biennial herb from South America that is a member of the genus Lepidium L. in the family Cruciferae. This herb possesses antioxidant and antiapoptotic activities, enhances autophagy functions, prevents cell death, and protects neurons from ischemic damage. Macamide B, an effective active ingredient of maca, exerts a neuroprotective effect on neonatal hypoxic-ischemic brain damage (HIBD), but the mechanism underlying its neuroprotective effect is not yet known. The purpose of this study was to explore the effect of macamide B on HIBD-induced autophagy and apoptosis and its potential neuroprotective mechanism. The modified Rice-Vannucci method was used to induce HIBD in 7-day-old (P7) macamide B- and vehicle-pretreated pups. TTC staining was performed to evaluate the cerebral infarct volume in pups, the brain water content was measured to evaluate the neurological function of pups, neurobehavioural testing was conducted to assess functional recovery after HIBD, TUNEL and FJC staining was performed to detect cellular autophagy and apoptosis, and Western blot analysis was used to detect the levels of proteins in the pro-survival phosphatidylinositol-3-kinase/protein kinase B (PI3K/AKT) signaling pathway and autophagy and apoptosis-related proteins. Macamide B pretreatment significantly decreases brain damage and improves the recovery of neural function after HIBD. At the same time, macamide B pretreatment activates the PI3K/AKT signaling pathway after HIBD, enhances autophagy, and reduces hypoxic-ischemic (HI)-induced apoptosis. In addition, 3-methyladenine (3-MA), an inhibitor of the PI3K/AKT signaling pathway, significantly inhibits the increase in autophagy levels, aggravates HI-induced apoptosis, and reverses the neuroprotective effect of macamide B on HIBD. Our data indicate that a macamide B pretreatment might regulate autophagy through the PI3K/AKT signaling pathway, thereby reducing HIBD-induced apoptosis and exerting neuroprotective effects on neonatal HIBD. Macamide B may become a new drug for the prevention and treatment of HIBD.
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Affiliation(s)
- Xiaoxia Yang
- School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Mengxia Wang
- Intensive Care Unit, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong, People's Republic of China
| | - Qian Zhou
- School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Yanxian Bai
- School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Jing Liu
- School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Junhua Yang
- School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Lixia Li
- School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Guoying Li
- School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China. .,Guangdong Medical Association, Guangzhou, 510180, Guangdong, People's Republic of China.
| | - Li Luo
- School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, People's Republic of China. .,Guangdong Medical Association, Guangzhou, 510180, Guangdong, People's Republic of China.
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