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Chen M, Wang X, Bao S, Wang D, Zhao J, Wang Q, Liu C, Zhao H, Zhang C. Orchestrating AMPK/mTOR signaling to initiate melittin-induced mitophagy: A neuroprotective strategy against Parkinson's disease. Int J Biol Macromol 2024; 281:136119. [PMID: 39343259 DOI: 10.1016/j.ijbiomac.2024.136119] [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: 06/22/2024] [Revised: 08/24/2024] [Accepted: 09/26/2024] [Indexed: 10/01/2024]
Abstract
Apitherapy has a long history in treating Parkinson's disease (PD) in humans, with evidence suggesting that bee venom (BV) can mitigate Parkinson's symptoms. Central to BV's effects is melittin (MLT), a principal peptide whose neuroprotective mechanisms in PD are not fully understood. The study investigated the effects of MLT on an experimental PD model in mice and dopaminergic neuron cells, induced by MPTP or MPP+. We concentrate on the autophagic response elicited by MLT during PD pathogenesis. The findings showed that MLT was shown to protect against MPP+/MPTP cytotoxicity and preserve tyrosine hydroxylase (TH) levels, indicating neuronal safeguarding. Remarkably, MLT instigated mitophagy, enhancing mitochondrial homeostasis in MPP+-exposed SH-SY5Y cells. Further, MLT's promotion of mitophagy was confirmed to be AMPK/mTOR signaling-dependent. Validation using Bafilomycin A1, an autophagy inhibitor, confirmed MLT's neuroprotective role, with autophagy inhibition negating MLT's benefits and reducing TH preservation. These findings illuminate MLT's therapeutic potential, particularly its modulation of mitochondrial dysfunction in PD pathology. Our research advances the understanding of MLT's mechanistic action, emphasizing its role in mitochondrial autophagy and AMPK/mTOR signaling, offering a novel perspective beyond the symptomatic relief associated with BV.
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Affiliation(s)
- Mingran Chen
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Xue Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Shuangyan Bao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Dexiao Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Jie Zhao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Qian Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Chaojie Liu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Haiong Zhao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China.
| | - Chenggui Zhang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China.
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Wang Q, Liu C, Chen M, Zhao J, Wang D, Gao P, Zhang C, Zhao H. Mastoparan M promotes functional recovery in stroke mice by activating autophagy and inhibiting ferroptosis. Biomed Pharmacother 2024; 174:116560. [PMID: 38583338 DOI: 10.1016/j.biopha.2024.116560] [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: 12/20/2023] [Revised: 03/20/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024] Open
Abstract
Neuronal ferroptosis and autophagy are crucial in the pathogenesis of cerebral ischemia-reperfusion injury (CIRI). Mastoparan M (Mast-M), extracted from the crude venom of Vespa magnifica (Smith), comprises 14 amino acid residues. Previous studies suggested that Mast-M reduces neuronal damage following global CIRI, but its protective mechanisms remain unclear. The present study examined the effect of Mast-M on middle cerebral artery occlusion/reperfusion (MCAO/R) induced neurological deficits using Grip, Rotarod, Longa test, and TTC staining, followed by treating the mice for three days with Mast-M (20, 40, and 80 μg/kg, subcutaneously). The results demonstrate that Mast-M promotes functional recovery in mice post-ischemic stroke, evidenced by improved neurological impairment, reduced infarct volume and neuronal damage. Meanwhile, the level of iron (Fe2+) and malonyldialdehyde was decreased in the ischemic hemisphere of MCAO/R mice at 24 hours or 48 hours by Mast-M (80 μg/kg) treatment, while the expression of NRF2, x-CT, GPX4, and LC3B protein was increased. Furthermore, these findings were validated in three models-oxygen-glucose deprivation/ reoxygenation, H2O2-induced peroxidation, and erastin-induced ferroptosis-in hippocampal neuron HT22 cells or primary neurons. These data suggested that Mast-M activates autophagy as well as inhibits ferroptosis. Finally, autophagy inhibitors were introduced to determine the relationship between the autophagy and ferroptosis, indicating that Mast-M alleviates ferroptosis by activating autophagy. Taken together, this study described that Mast-M alleviates cerebral infarction, neurologic impairment, and neuronal damage by activating autophagy and inhibiting ferroptosis, presenting a potential therapeutic approach for CIRI.
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Affiliation(s)
- Qian Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Chaojie Liu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Mingran Chen
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Jie Zhao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Dexiao Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China
| | - Pengfei Gao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China
| | - Chenggui Zhang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China.
| | - Hairong Zhao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China.
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Yan Y, Yu L, Chen B, Cao C, Zhao H, Wang Q, Xie D, Xi Y, Zhang C, Cheng J. Mastoparan M Suppressed NLRP3 Inflammasome Activation by Inhibiting MAPK/NF-κB and Oxidative Stress in Gouty Arthritis. J Inflamm Res 2023; 16:6179-6193. [PMID: 38116368 PMCID: PMC10730329 DOI: 10.2147/jir.s434587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/28/2023] [Indexed: 12/21/2023] Open
Abstract
Background Gouty arthritis is characterized by the accumulation of monosodium urate crystals (MSU) in the synovial joints and surrounding tissues. Mastoparan M (Mast-M) is a biologically active peptide composed of 14 amino acids, extracted from wasp venom. This study aims to assess the impact of Mast-M on in vitro and in vivo gouty arthritis induced by lipolyaccharide (LPS) plus MSU crystal stimulation. Methods PMA-differentiated THP-1 macrophages were pre-treated with Mast-M or left untreated, followed by stimulation with LPS and MSU crystals. Cell lysates were collected to assess the expression of the NLRP3 inflammasome, inflammatory signaling pathways, and oxidative stress. Furthermore, to evaluate the in vivo anti-inflammatory effect of Mast-M, an experimental acute gouty arthritis mouse model was established through intra-articular injection of MSU crystals. Results Mast-M treatment demonstrated significant inhibition of the phosphorylation of MAPKs/NF-κB signaling pathways and reduction in oxidative stress expression in LPS and MSU-induced THP-1 macrophages. This resulted in the suppression of downstream NLRP3 inflammasome activation and IL-1β release. In vivo, Mast-M effectively attenuated the inflammation induced by MSU in mice with gouty arthritis. Specifically, Mast-M reduced swelling in the paws, inhibited the infiltration of neutrophils and macrophages into periarticular tissue, and decreased the activation of the NLRP3 inflammasome and IL-1β production. Conclusion Mast-M significantly improves gouty arthritis, and its potential mechanism may be achieved by inhibiting the MAPK/NF-κB pathway and alleviating oxidative stress, thus suppressing the activation of NLRP3 inflammasomes.
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Affiliation(s)
- Yunbo Yan
- Department of Internal Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China
| | - Linqian Yu
- Department of Internal Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China
| | - Binyang Chen
- Department of Internal Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China
| | - Chang’an Cao
- Department of Internal Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China
| | - Hairong Zhao
- Department of Internal Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, People’s Republic of China
| | - Qiang Wang
- Department of Internal Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China
| | - De Xie
- Department of Internal Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China
| | - Yuemei Xi
- Department of Internal Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China
| | - Chenggui Zhang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, People’s Republic of China
| | - Jidong Cheng
- Department of Internal Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, People’s Republic of China
- Xiamen Key Laboratory of Translational Medicine for Nucleic Acid Metabolism and Regulation, Xiamen, People’s Republic of China
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Ji L, Jin RJ, Li L. Platelet-rich Plasma Improves Radiotherapy-induced Emotional Disorder and Cognitive Dysfunction, Neuroinflammation in Aged Rats by Inhibiting the Activation of NLRP3 Inflammasomes. Neurochem Res 2023:10.1007/s11064-023-03933-9. [PMID: 37043084 DOI: 10.1007/s11064-023-03933-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/01/2023] [Accepted: 03/31/2023] [Indexed: 04/13/2023]
Abstract
Although radiotherapy (RT) is the preferred treatment for elderly patients with brain tumors, certain negative effects can't be ignored. Fortunately, platelet-rich plasma (PRP) presents with a promising potential for the treatment of neurological diseases. Therefore, this study aimed to explore the effect of PRP on neuroinflammation, emotional disorder and cognitive dysfunction induced by RT in aged rats. Firstly, whole brain RT (WBRT) model was established by whole brain irradiation with 10 Gy of 6-MeV electron beam in rats. Next, twenty 20-month-old female SD rats were divided into four groups (sham group, PRP group, WBRT group, and WBRT + PRP group) according different treatments. After that, the cognitive dysfunction and depression-like behavior of rats were examined by novel object recognition test (NORT), Morris water maze test (MWM), open field test (OFT) and elevated plus maze test (EPM). Besides, immunohistochemistry was used to detect the expression of microglial marker protein Iba-1 in rat hippocampus; enzyme linked immunosorbent assay (ELISA) to examine the levels of pro-inflammatory cytokines tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1 beta (IL-1β), IL-18, and monocyte chemoattractant protein 1 (MCP-1) in rat hippocampus; real-time quantitative reverse transcription PCR (qRT-PCR) and western blot to measure the levels of neurotrophic factors brain-derived neurotrophic factor (BDNF), tropomyosin-related kinase B receptor (TrkB), and nerve growth factor (NGF) in rat hippocampus; and western blot also to observe the protein expression levels of NOD-like receptor protein 3 (NLRP3), caspase-1, apoptosis-associated speck-like protein containing a CARD (ASC), and IL-1β in rat hippocampus. After experiments, some results obtained were shown as follows. PRP could significantly improve learning and memory ability and depression-like behavior, increase the level of neurotrophic factors, inhibit the activation of microglia and decrease the level of pro-inflammatory factors in WBRT rats. In addition, PRP significantly inhibited the activation of NLRP3 inflammasomes. To sum up, PRP can ameliorate neuroinflammation, emotional disorder and cognitive dysfunction induced by RT in aged rats, and the mechanism may be related to its inhibitory effect on NLRP3 inflammasome activation.
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Affiliation(s)
- Lu Ji
- Department of Radiology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, 121000, China
| | - Rong-Jie Jin
- Department of security, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, 121000, China
| | - Lin Li
- Respiratory department, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, 121000, China.
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Jin FM, Wang M, Wu XM, Xiao H, Wang DX, Wang GM, Zhang CG, Zhao HR. Effects of wasp venom on venous thrombosis in rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2022; 25:822-826. [PMID: 36033945 PMCID: PMC9392573 DOI: 10.22038/ijbms.2022.63219.13962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 06/21/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVES This study aimed to investigate the potential effects of wasp venom (WV) from Vespa magnifica on antithrombosis in rats with inferior vena cava (IVC) thrombosis. MATERIALS AND METHODS The thrombosis rat model was established by improving the IVC stenosis, in which rats were subjected to IVC ligation for 75 min. Rats were administered argatroban (IP) or WV (s.c.) for 4 hr after IVC thrombosis. The weight, inhibition rate, and pathological morphology of the thrombosis induced by IVC ligation and the variation in four coagulation parameters, coagulation factors, and CD61+CD62P+ were simultaneously determined in IVC rats. RESULTS The thrombus formed as a result of IVC ligation was stable. Compared with the control group, the weight of the thrombus was significantly reduced in the argatroban group. Thrombus weight was reduced by treatment with 0.6, 0.2, and 0.05 mg/kg WV, with inhibition rates of 52.19%, 35.32%, and 28.98%, respectively. Inflammatory cells adhered to and infiltrated the vessel wall in the IVC group more than in the sham group. However, the pathological morphology and CD61+CD62P+ of the WV treatment groups tended to be normal. CONCLUSION We improved the model of IVC thrombosis to be suitable for evaluation of antithrombotic drugs. Our findings demonstrated that WV could inhibit IVC thrombosis associated with reducing coagulation factors V and CD61+CD62p expression in rats.
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Affiliation(s)
- Fan-mao Jin
- Lishui City People’s Hospital, Lishui, Zhejiang 323000, People’s Republic of China,These authors contributed equally to this work
| | - Mei Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China,National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, China,These authors contributed equally to this work
| | - Xiu-mei Wu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China,National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, China
| | - Huai Xiao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China
| | - De-xiao Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China,Genetic Testing Center, The First Affiliated Hospital of Dali University, Dali University, Dali, China
| | - Guang-ming Wang
- Genetic Testing Center, The First Affiliated Hospital of Dali University, Dali University, Dali, China
| | - Cheng-gui Zhang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China,National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, China,Corresponding authors: Cheng-gui Zhang. Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China; National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, China. ; Hai-rong Zhao. Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China; Genetic Testing Center, The First Affiliated Hospital of Dali University, Dali University, Dali, China; National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, China.
| | - Hai-rong Zhao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China,National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, China,Genetic Testing Center, The First Affiliated Hospital of Dali University, Dali University, Dali, China,Corresponding authors: Cheng-gui Zhang. Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China; National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, China. ; Hai-rong Zhao. Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, China; Genetic Testing Center, The First Affiliated Hospital of Dali University, Dali University, Dali, China; National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, China.
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