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Zheng ZJ, Zhu LZ, Qiu H, Zheng WYX, You PT, Chen SH, Hu CL, Huang JR, Zhou YJ. Neferine inhibits BMECs pyroptosis and maintains blood-brain barrier integrity in ischemic stroke by triggering a cascade reaction of PGC-1α. Sci Rep 2024; 14:14438. [PMID: 38910141 PMCID: PMC11194274 DOI: 10.1038/s41598-024-64815-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 06/13/2024] [Indexed: 06/25/2024] Open
Abstract
Blood-brain barrier disruption is a critical pathological event in the progression of ischemic stroke (IS). Most studies regarding the therapeutic potential of neferine (Nef) on IS have focused on neuroprotective effect. However, whether Nef attenuates BBB disruption during IS is unclear. We here used mice underwent transient middle cerebral artery occlusion (tMCAO) in vivo and bEnd.3 cells exposed to oxygen-glucose deprivation/reoxygenation (OGD/R) injury in vitro to simulate cerebral ischemia. We showed that Nef reduced neurobehavioral dysfunction and protected brain microvascular endothelial cells and BBB integrity. Molecular docking, short interfering (Si) RNA and plasmid transfection results showed us that PGC-1α was the most binding affinity of biological activity protein for Nef. And verification experiments were showed that Nef upregulated PGC-1α expression to reduce mitochondrial oxidative stress and promote TJ proteins expression, further improves the integrity of BBB in mice. Intriguingly, our study showed that neferine is a natural PGC-1α activator and illustrated the mechanism of specific binding site. Furthermore, we have demonstrated Nef reduced mitochondria oxidative damage and ameliorates endothelial inflammation by inhibiting pyroptosis to improve BBB permeability through triggering a cascade reaction of PGC-1α via regulation of PGC-1α/NLRP3/GSDMD signaling pathway to maintain the integrity of BBB in ischemia/reperfusion injury.
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Affiliation(s)
- Zi-Jian Zheng
- Department of Pharmacy, Gongan Hospital of Traditional Chinese Medicine, Jingzhou, 434300, China
- Hubei University of Chinese Medicine, Wuhan, 430061, China
| | - Li-Zhi Zhu
- Department of Pharmacy, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Shenzhen, 518055, China
| | - Han Qiu
- Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, 3002 West Sungang Rd, Shenzhen, 518020, China
| | - Wu-Yin-Xiao Zheng
- Department of Pharmacy, Gongan Hospital of Traditional Chinese Medicine, Jingzhou, 434300, China
- Hubei University of Chinese Medicine, Wuhan, 430061, China
| | - Peng-Tao You
- Hubei University of Chinese Medicine, Wuhan, 430061, China
| | - Shu-He Chen
- Department of Pharmacy, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, 430061, China
- Hubei Shizhen Laboratory, Wuhan, 430061, China
| | - Chun-Ling Hu
- Hubei University of Chinese Medicine, Wuhan, 430061, China
| | - Jun-Rong Huang
- Department of Pharmacy, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Shenzhen, 518055, China
| | - Ya-Jun Zhou
- Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, 3002 West Sungang Rd, Shenzhen, 518020, China.
- Department of Pharmacy, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, 430061, China.
- Hubei Shizhen Laboratory, Wuhan, 430061, China.
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Wang H, An Y, Rajput SA, Qi D. Resveratrol and (-)-Epigallocatechin-3-gallate Regulate Lipid Metabolism by Activating the AMPK Pathway in Hepatocytes. BIOLOGY 2024; 13:368. [PMID: 38927248 PMCID: PMC11201192 DOI: 10.3390/biology13060368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/28/2024]
Abstract
The purpose of this study was to explore the effects of Res and EGCG on cell growth, cellular antioxidant levels, and cellular lipid metabolism in hepatocytes. In this experiment, leghorn male hepatoma (LMH) cells were used as hepatocytes. The results showed that 6.25-25 μM Res and EGCG had no adverse effects on cell viability and growth. Meanwhile, with the increasing dosage of Res and EGCG, the contents of total cholesterol (TC), total glyceride (TG), and malondialdehyde (MDA) in hepatocytes decreased significantly (p < 0.05), while the contents of glutathione peroxidase (GSH-Px), total superoxide dismutase (T-SOD), and catalase (CAT) increased significantly (p < 0.05). In addition, western blot results showed that Res and EGCG could significantly increase the expression of p-AMPK protein and reduce the expression of 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR) protein in hepatocytes (p < 0.05). Moreover, q-PCR results showed that with the increase in Res and EGCG, the expression of cholesterol- and fatty acid synthesis-related genes decreased significantly (p < 0.05). In conclusion, Res and EGCG can increase the antioxidant capacity of hepatocytes and reduce the synthesis of TC and TG in hepatocytes by activating AMPK, thereby regulating lipid metabolism in hepatocytes.
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Affiliation(s)
- Huanbin Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (H.W.); (Y.A.)
| | - Yu An
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (H.W.); (Y.A.)
| | - Shahid Ali Rajput
- Department of Animal and Dairy Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan 60000, Pakistan;
| | - Desheng Qi
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (H.W.); (Y.A.)
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Liang J, Bao D, Ye Z, Cao B, Lu Z, Chen J. Neferine alleviates ovariectomy-induced osteoporosis by enhancing osteogenic differentiation of bone marrow mesenchymal stem cells via regulation of the p38MAPK pathway. Connect Tissue Res 2024; 65:253-264. [PMID: 38753365 DOI: 10.1080/03008207.2024.2351097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 04/29/2024] [Indexed: 05/31/2024]
Abstract
OBJECTIVE Osteoporosis, a skeletal ailment marked by bone metabolism imbalance and disruption of bone microarchitecture, Neferine, a bisbenzylisoquinoline alkaloid with diverse pharmacological activities, has received limited attention in the context of osteoporosis treatment. METHODS We employed a bilateral ovariectomy (OVX) rat model to induce osteoporosis and subsequently administered Neferine treatment for four weeks following successful model establishment. Throughout the modeling and treatment phases, we closely monitored rat body weights. We assessed alterations in bone tissue microstructure through micro-CT, HE staining, and safranin O-fast green staining. Levels of bone formation and resorption markers in serum were evaluated using ELISA assay. Western blot analysis was employed to determine the expression levels of p38MAPK, p-p38MAPK, and bone formation-related genes in bone tissue. We isolated and cultured OVX rat BMSCs (OVX-BMSCs) and induced osteogenic differentiation while simultaneously introducing Neferine and the p38MAPK inhibitor SB203580 for intervention. RESULTS Neferine treatment effectively curbed the rapid weight gain in OVX rats, ameliorated bone loss, and decreased serum levels of TRAP, CTX-I, PINP, and BALP. Most notably, Neferine promoted the expression of bone formation-related factors in bone tissue of OVX rats, while concurrently activating the p38MAPK signaling pathway. In in vitro experiments, Neferine facilitated the expression of bone formation-related factors in OVX-BMSCs, increased the osteogenic differentiation potential of OVX-BMSCs, and activated the p38MAPK signaling pathway. Nevertheless, SB203580 partially reversed Neferine's promotive effect. CONCLUSION Neferine can boost the osteoblastic differentiation of BMSCs and alleviate OVX-induced osteoporosis in rats by activating the p38MAPK signaling pathway.
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Affiliation(s)
- Jianwei Liang
- Department of Orthopedics, Taizhou First People's Hospital, Taizhou, China
| | - Dandan Bao
- Department of Pharmacy, Taizhou First People's Hospital, Taizhou, China
| | - Zhan Ye
- Department of Orthopedics, Taizhou First People's Hospital, Taizhou, China
| | - Binhao Cao
- Department of Orthopedics, Taizhou First People's Hospital, Taizhou, China
| | - Zhenyu Lu
- Department of Orthopedics, Taizhou First People's Hospital, Taizhou, China
| | - Jianjun Chen
- Department of Orthopedics, Taizhou First People's Hospital, Taizhou, China
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Xiong Y, Zhong J, Chen W, Li X, Liu H, Li Y, Xiong W, Li H. Neferine alleviates acute kidney injury by regulating the PPAR-α/NF-κB pathway. Clin Exp Nephrol 2024:10.1007/s10157-024-02504-8. [PMID: 38658442 DOI: 10.1007/s10157-024-02504-8] [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: 07/15/2023] [Accepted: 04/07/2024] [Indexed: 04/26/2024]
Abstract
Acute kidney injury (AKI) is a cluster of clinical syndromes with diverse etiologies that ultimately result in a swift decline in kidney function. Regrettably, AKI lacks effective therapeutic agents at present. Neferine, a bioactive alkaloid derived from Lotus Plumule, has been reported to alleviate AKI triggered by cisplatin, ischemia/reperfusion (I/R), and sepsis by inhibiting inflammatory pathways. However, the precise molecular mechanisms underpinning its renoprotective effects remain elusive. Peroxisome proliferator-activated receptor alpha (PPAR-α), a regulator of lipid metabolism with anti-inflammatory properties, was investigated in this study to examine its role in neferine's renoprotective effects in cellular and mouse models of AKI. We found that neferine pretreatment in both I/R- or lipopolysaccharide (LPS)-induced AKI models inhibited the activation of the NF-κB inflammatory pathway and reversed PPAR-α deficiency. In NRK-52E cells exposed to hypoxia/reoxygenation (H/R) or LPS, overexpression of PPAR-α resulted in inhibition of the NF-κB pathway and TNF-α production, while PPAR-α silencing via siRNA transfection negated neferine's anti-inflammatory effects. Furthermore, pretreatment with neferine not only reduced lipid accumulation but also reversed the downregulation of FAO-related enzymes induced by LPS. Our findings suggest that neferine's renoprotective effects against AKI are partially mediated through the reversal of renal PPAR-α deficiency and subsequent inhibition of the inflammatory NF-κB pathway. Therefore, regulating renal PPAR-α expression by neferine could represent a promising therapeutic strategy for AKI.
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Affiliation(s)
- Yanying Xiong
- Department of Nephropathy, Chongqing Hospital of Traditional Chinese Medicine, Jiangbei District, Chongqing, China
| | - Jin Zhong
- Department of Nephropathy, Chongqing Hospital of Traditional Chinese Medicine, Jiangbei District, Chongqing, China
| | - Wenhang Chen
- Department of Nephropathy, Xiangya Hospital Central-South University, Changsha, Hunan, China
| | - Xuan Li
- Department of Nephropathy, Chongqing Hospital of Traditional Chinese Medicine, Jiangbei District, Chongqing, China
| | - Hong Liu
- Department of Nephropathy, Chongqing Hospital of Traditional Chinese Medicine, Jiangbei District, Chongqing, China
| | - Ying Li
- Department of Nephropathy, Chongqing Hospital of Traditional Chinese Medicine, Jiangbei District, Chongqing, China
| | - Weijian Xiong
- Department of Nephropathy, Chongqing Hospital of Traditional Chinese Medicine, Jiangbei District, Chongqing, China
| | - Huihui Li
- Department of Nephropathy, Chongqing Hospital of Traditional Chinese Medicine, Jiangbei District, Chongqing, China.
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Liu Y, Sun Z, Dong R, Liu P, Zhang X, Li Y, Lai X, Cheong HF, Wu Y, Wang Y, Zhou H, Gui D, Xu Y. Rutin ameliorated lipid metabolism dysfunction of diabetic NAFLD via AMPK/SREBP1 pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 126:155437. [PMID: 38394735 DOI: 10.1016/j.phymed.2024.155437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/25/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND In diabetic liver injury, nonalcoholic fatty liver disease (NAFLD) is the most prevalent chronic liver disease. Rutin is a bioflavonoid produced by the hydrolysis of glucosidases to quercetin. Its biological activities include lowering blood glucose, regulating insulin secretion, regulating dyslipidemia, and exerting anti-inflammatory effects have been demonstrated. However, its effect on diabetic NAFLD is rarely reported. PURPOSE Our study aimed to investigate the protective effects of Rutin on diabetic NAFLD and potential pharmacological mechanism. METHODS We used db/db mice as the animal model to investigate diabetic NAFLD. Oleic acid-treated (OA) HeLa cells were examined whether Rutin had the ability to ameliorate lipid accumulation. HepG2 cells treated with 30 mM/l d-glucose and palmitic acid (PA) were used as diabetic NAFLD in vitro models. Total cholesterol (TC) and Triglycerides (TG) levels were determined. Oil red O staining and BODIPY 493/503 were used to detect lipid deposition within cells. The indicators of inflammation and oxidative stress were detected. The mechanism of Rutin in diabetic liver injury with NAFLD was analyzed using RNA-sequence and 16S rRNA, and the expression of fat-synthesizing proteins in the 5' adenosine monophosphate-activated protein kinase (AMPK) pathway was investigated. Compound C inhibitors were used to further verify the relationship between AMPK and Rutin in diabetic NAFLD. RESULTS Rutin ameliorated lipid accumulation in OA-treated HeLa. In in vitro and in vivo models of diabetic NAFLD, Rutin alleviated lipid accumulation, inflammation, and oxidative stress. 16S analysis showed that Rutin could reduce gut microbiota dysregulation, such as the ratio of Firmicutes to Bacteroidetes. RNA-seq showed that the significantly differentially genes were mainly related to liver lipid metabolism. And the ameliorating effect of Rutin on diabetic NAFLD was through AMPK/SREBP1 pathway and the related lipid synthesis proteins was involved in this process. CONCLUSION Rutin ameliorated diabetic NAFLD by activating the AMPK pathway and Rutin might be a potential new drug ingredient for diabetic NAFLD.
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Affiliation(s)
- Yadi Liu
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, PR China
| | - Zhongyan Sun
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, PR China
| | - Ruixue Dong
- Faculty of Pharmacy, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, PR China
| | - Peiyu Liu
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, PR China
| | - Xi Zhang
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, PR China
| | - Yiran Li
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, PR China
| | - Xiaoshan Lai
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, PR China
| | - Hio-Fai Cheong
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, PR China
| | - Yuwei Wu
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, PR China
| | - Yilin Wang
- Department of Metabolic Diseases of Integrated Chinese and Western Medicine, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Hua Zhou
- State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Dingkun Gui
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, PR China
| | - Youhua Xu
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, PR China; Faculty of Pharmacy, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, PR China; Macau University of Science and Technology Zhuhai MUST Science and Technology Research Institute, Hengqin, Zhuhai, PR China.
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Liu R, Tu M, Xue J, Xiao B, Li J, Liang L. Oleic acid induces lipogenesis and NLRP3 inflammasome activation in organotypic mouse meibomian gland and human meibomian gland epithelial cells. Exp Eye Res 2024; 241:109851. [PMID: 38453039 DOI: 10.1016/j.exer.2024.109851] [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: 08/08/2023] [Revised: 02/29/2024] [Accepted: 03/03/2024] [Indexed: 03/09/2024]
Abstract
The accumulation of oleic acid (OA) in the meibum from patients with meibomian gland dysfunction (MGD) suggests that it may contribute to meibomian gland (MG) functional disorder, as it is a potent stimulator of acne-related lipogenesis and inflammation in sebaceous gland. Therefore, we investigate whether OA induces lipogenesis and inflammasome activation in organotypic cultured mouse MG and human meibomian gland epithelial cells (HMGECs). Organotypic cultured mouse MG and HMGECs were exposed to OA or combinations with specific AMPK agonists 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR). Lipogenic status, ductal keratinization, squamous metaplasia, NLRP3/ASC/Caspase-1 inflammasome activation, proinflammatory cytokine IL-1β production, and AMPK pathway phosphorylation in MG were subsequently examined by lipid staining, immunofluorescence staining, immunohistochemical staining, ELISA assay, and Western blot analyses. We found that OA significantly induced lipid accumulation, ductal keratinization, and squamous metaplasia in organotypic cultured MG, as evidenced by increased lipids deposition within acini and duct, upregulated expression of lipogenic proteins (SREBP-1 and HMGCR), and elevation of K10/Sprr1b. Additionally, OA induced NLRP3/ASC/Caspase-1 inflammasome activation, cleavage of Caspase-1, and production of downstream proinflammatory cytokine IL-1β. The findings of lipogenesis and NLRP3-related proinflammatory response in OA-stimulated HMGECs were consistent with those in organotypic cultured MG. OA exposure downregulated phospho-AMPK in two models, while AICAR treatment alleviated lipogenesis by improving AMPK/ACC phosphorylation and SREBP-1/HMGCR expression. Furthermore, AMPK amelioration inhibited activation of the NLRP3/ASC/Caspase-1 axis and secretion of IL-1β, thereby relieving the OA-induced proinflammatory response. These results demonstrated that OA induced lipogenic disorder and NLRP3 inflammasome activation in organotypic cultured mouse MG and HMGECs by suppressing the AMPK signaling pathway, indicating OA may play an etiological role in MGD.
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Affiliation(s)
- Ren Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Mengqian Tu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Jianwen Xue
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Bing Xiao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Jing Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China.
| | - Lingyi Liang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China.
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Zhang X, Li J, Cao C, Liu Z, Chen Q, Gu Z, Wang W, Fang D, Ge Q, Ding L, Pang C, Wang X. Nrf2 activation by neferine mitigates microglial neuroinflammation after subarachnoid hemorrhage through inhibiting TAK1-NF-κB signaling. Int Immunopharmacol 2024; 130:111693. [PMID: 38428144 DOI: 10.1016/j.intimp.2024.111693] [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: 09/07/2023] [Revised: 02/02/2024] [Accepted: 02/12/2024] [Indexed: 03/03/2024]
Abstract
Oxidative stress and neuroinflammation are two major causes leading to early brain injury after subarachnoid hemorrhage (SAH). Nuclear factor E2-related factor 2 (Nrf2) is a critical transcription factor that contributes to antioxidant responses. Additionally, Nrf2 could inhibit transforming growth factor beta-activated kinase 1 (TAK1), which plays a vital role in microglial activation-mediated neuroinflammation. Neferine (NE) exhibits considerable protective effects in diverse disease models. However, the detailed effect and mechanism of NE on SAH remain unknown. Our data showed that NE treatment significantly reduced behavior and cognitive impairment, and brain edema in the early period after SAH. In addition, NE mitigated SAH-induced oxidative damage, neuroinflammation, and neural death. Moreover, NE inhibited M1 microglial polarization and enhanced M2 phenotype microglia both in vivo and in vitro. Further investigations revealed that NE enhanced the Nrf2-antioxidant response element (ARE) signaling pathway and suppressed TAK1-NF-κB signaling. In contrast, depletion of Nrf2 by ML385 suppressed Nrf2-ARE signaling, induced TAK1-NF-κB activation, and further promoted M1 microglial polarization. Additionally, ML385 abated the neuroprotective effects of NE against SAH. Notably, LPS also aggravated TAK1-NF-κB activation and reversed the beneficial effects of NE after SAH. In summary, NE provides protection after SAH by inhibiting oxidative stress and modulating microglial polarization through Nrf2 activation and TAK1-NF-κB suppression.
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Affiliation(s)
- Xiaotian Zhang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Jun Li
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Changchun Cao
- Department of Pharmacy, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Zhichao Liu
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Qiushi Chen
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Zhijiang Gu
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Weijie Wang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Dazhao Fang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - QianQian Ge
- Department of Gynecology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China
| | - Lianshu Ding
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China.
| | - Cong Pang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China.
| | - Xiaodong Wang
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, No. 1 Huanghe Road West, Huaian, Jiangsu 223300, China.
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