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Li X, Fu J, Guan M, Shi H, Pan W, Lou X. Biochanin A attenuates spinal cord injury in rats during early stages by inhibiting oxidative stress and inflammasome activation. Neural Regen Res 2024; 19:2050-2056. [PMID: 38227535 DOI: 10.4103/1673-5374.390953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 10/10/2023] [Indexed: 01/17/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202409000-00038/figure1/v/2024-01-16T170235Z/r/image-tiff Previous studies have shown that Biochanin A, a flavonoid compound with estrogenic effects, can serve as a neuroprotective agent in the context of cerebral ischemia/reperfusion injury; however, its effect on spinal cord injury is still unclear. In this study, a rat model of spinal cord injury was established using the heavy object impact method, and the rats were then treated with Biochanin A (40 mg/kg) via intraperitoneal injection for 14 consecutive days. The results showed that Biochanin A effectively alleviated spinal cord neuronal injury and spinal cord tissue injury, reduced inflammation and oxidative stress in spinal cord neurons, and reduced apoptosis and pyroptosis. In addition, Biochanin A inhibited the expression of inflammasome-related proteins (ASC, NLRP3, and GSDMD) and the Toll-like receptor 4/nuclear factor-κB pathway, activated the Nrf2/heme oxygenase 1 signaling pathway, and increased the expression of the autophagy markers LC3 II, Beclin-1, and P62. Moreover, the therapeutic effects of Biochanin A on early post-spinal cord injury were similar to those of methylprednisolone. These findings suggest that Biochanin A protected neurons in the injured spinal cord through the Toll-like receptor 4/nuclear factor κB and Nrf2/heme oxygenase 1 signaling pathways. These findings suggest that Biochanin A can alleviate post-spinal cord injury at an early stage.
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Affiliation(s)
- Xigong Li
- Department of Orthopedics, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jing Fu
- Department of Stomatology, Xixi Hospital, Hangzhou, Zhejiang Province, China
| | - Ming Guan
- Department of Orthopedics, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Haifei Shi
- Department of Orthopedics, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Wenming Pan
- Department of Orthopedics, and Spine Surgery, the Affiliated Hospital of Xuzhou Medical School, the Second People's Hospital of Changshu, Changshu, Jiangsu Province, China
| | - Xianfeng Lou
- Department of Orthopedics, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
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Zhou Z, Li W, Ni L, Wang T, Huang Y, Yu Y, Hu M, Liu Y, Wang J, Huang X, Wang Y. Icariin improves oxidative stress injury during ischemic stroke via inhibiting mPTP opening. Mol Med 2024; 30:77. [PMID: 38840035 PMCID: PMC11155182 DOI: 10.1186/s10020-024-00847-2] [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: 03/22/2024] [Accepted: 05/27/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND Ischemic stroke presents a significant threat to human health due to its high disability rate and mortality. Currently, the clinical treatment drug, rt-PA, has a narrow therapeutic window and carries a high risk of bleeding. There is an urgent need to find new effective therapeutic drugs for ischemic stroke. Icariin (ICA), a key ingredient in the traditional Chinese medicine Epimedium, undergoes metabolism in vivo to produce Icaritin (ICT). While ICA has been reported to inhibit neuronal apoptosis after cerebral ischemia-reperfusion (I/R), yet its underlying mechanism remains unclear. METHODS PC-12 cells were treated with 200 µM H2O2 for 8 h to establish a vitro model of oxidative damage. After administration of ICT, cell viability was detected by Thiazolyl blue tetrazolium Bromide (MTT) assay, reactive oxygen species (ROS) and apoptosis level, mPTP status and mitochondrial membrane potential (MMP) were detected by flow cytometry and immunofluorescence. Apoptosis and mitochondrial permeability transition pore (mPTP) related proteins were assessed by Western blotting. Middle cerebral artery occlusion (MCAO) model was used to establish I/R injury in vivo. After the treatment of ICA, the neurological function was scored by ZeaLonga socres; the infarct volume was observed by 2,3,5-Triphenyltetrazolium chloride (TTC) staining; HE and Nissl staining were used to detect the pathological state of the ischemic cortex; the expression changes of mPTP and apoptosis related proteins were detected by Western blotting. RESULTS In vitro: ICT effectively improved H2O2-induced oxidative injury through decreasing the ROS level, inhibiting mPTP opening and apoptosis. In addition, the protective effects of ICT were not enhanced when it was co-treated with mPTP inhibitor Cyclosporin A (CsA), but reversed when combined with mPTP activator Lonidamine (LND). In vivo: Rats after MCAO shown cortical infarct volume of 32-40%, severe neurological impairment, while mPTP opening and apoptosis were obviously increased. Those damage caused was improved by the administration of ICA and CsA. CONCLUSIONS ICA improves cerebral ischemia-reperfusion injury by inhibiting mPTP opening, making it a potential candidate drug for the treatment of ischemic stroke.
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Affiliation(s)
- Zhiyong Zhou
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China
- College of Medicine and Health Sciences, China Three Gorges University, Yichang, 443002, P. R. China
| | - Weili Li
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China
- College of Medicine and Health Sciences, China Three Gorges University, Yichang, 443002, P. R. China
| | - Lu Ni
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China
- College of Medicine and Health Sciences, China Three Gorges University, Yichang, 443002, P. R. China
| | - Tianlun Wang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China
- College of Medicine and Health Sciences, China Three Gorges University, Yichang, 443002, P. R. China
| | - Yan Huang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China
- College of Medicine and Health Sciences, China Three Gorges University, Yichang, 443002, P. R. China
| | - Yuanqi Yu
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China
- College of Medicine and Health Sciences, China Three Gorges University, Yichang, 443002, P. R. China
| | - Mingxin Hu
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China
- College of Medicine and Health Sciences, China Three Gorges University, Yichang, 443002, P. R. China
| | - Yinling Liu
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China
- College of Medicine and Health Sciences, China Three Gorges University, Yichang, 443002, P. R. China
| | - Jin'e Wang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China
- College of Basic Medical Sciences, China Three Gorges University, Yichang, 443002, P. R. China
| | - Xiaofei Huang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Yichang, 443002, P. R. China.
- College of Medicine and Health Sciences, China Three Gorges University, Yichang, 443002, P. R. China.
| | - Yanyan Wang
- The First College of Clinical Medical Science, China Three Gorges University, Yichang, 443000, P. R. China.
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Wang LL, Kang ML, Liu CW, Liu L, Tang B. Panax notoginseng Saponins Activate Nuclear Factor Erythroid 2-Related Factor 2 to Inhibit Ferroptosis and Attenuate Inflammatory Injury in Cerebral Ischemia-Reperfusion. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2024; 52:821-839. [PMID: 38699996 DOI: 10.1142/s0192415x24500332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Panax notoginseng saponins (PNS), the primary medicinal ingredient of Panax notoginseng, mitigates cerebral ischemia-reperfusion injury (CIRI) by inhibiting inflammation, regulating oxidative stress, promoting angiogenesis, and improving microcirculation. Moreover, PNS activates nuclear factor erythroid 2-related factor 2 (Nrf2), which is known to inhibit ferroptosis and reduce inflammation in the rat brain. However, the molecular regulatory roles of PNS in CIRI-induced ferroptosis remain unclear. In this study, we aimed to investigate the effects of PNS on ferroptosis and inflammation in CIRI. We induced ferroptosis in SH-SY5Y cells via erastin stimulation and oxygen glucose deprivation/re-oxygenation (OGD/R) in vitro. Furthermore, we determined the effect of PNS treatment in a rat model of middle cerebral artery occlusion/reperfusion and assessed the underlying mechanism. We also analyzed the changes in the expression of ferroptosis-related proteins and inflammatory factors in the established rat model. OGD/R led to an increase in the levels of ferroptosis markers in SH-SY5Y cells, which were reduced by PNS treatment. In the rat model, combined treatment with an Nrf2 agonist, Nrf2 inhibitor, and PNS-Nrf2 inhibitor confirmed that PNS promotes Nrf2 nuclear localization and reduces ferroptosis and inflammatory responses, thereby mitigating brain injury. Mechanistically, PNS treatment facilitated Nrf2 activation, thereby regulating the expression of iron overload and lipid peroxidation-related proteins and the activities of anti-oxidant enzymes. This cascade inhibited ferroptosis and mitigated CIRI. Altogether, these results suggest that the ferroptosis-mediated activation of Nrf2 by PNS reduces inflammation and is a promising therapeutic approach for CIRI.
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Affiliation(s)
- Lin-Lin Wang
- Key Laboratory of Vascular Biology and Translational Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, P. R. China
| | - Man-Lin Kang
- Key Laboratory of Vascular Biology and Translational Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, P. R. China
| | - Can-Wen Liu
- Key Laboratory of Vascular Biology and Translational Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, P. R. China
| | - Liang Liu
- People's Hospital of Ningxiang City, Hunan University of Chinese Medicine, Changsha, Hunan 410600, P. R. China
| | - Biao Tang
- Key Laboratory of Vascular Biology and Translational Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, P. R. China
- National Key Laboratory Cultivation Base of Chinese Medicinal Powder & Innovative Medicinal Jointly Established by Province and Ministry, Hunan University of Chinese Medicine, Changsha, Hunan 410208, P. R. China
- People's Hospital of Ningxiang City, Hunan University of Chinese Medicine, Changsha, Hunan 410600, P. R. China
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Shi M, Pei H, Sun L, Chen W, Zong Y, Zhao Y, Du R, He Z. Optimization of the Flavonoid Extraction Process from the Stem and Leaves of Epimedium Brevicornum and Its Effects on Cyclophosphamide-Induced Renal Injury. Molecules 2023; 29:207. [PMID: 38202790 PMCID: PMC10780727 DOI: 10.3390/molecules29010207] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/09/2023] [Accepted: 11/27/2023] [Indexed: 01/12/2024] Open
Abstract
Cyclophosphamide (CTX) is a broad-spectrum alkylated antitumor drug. It is clinically used in the treatment of a variety of cancers, and renal toxicity is one of the adverse reactions after long-term or repeated use, which not only limits the therapeutic effect of CTX, but also increases the probability of kidney lesions. The total flavonoids of Epimedium stem and leaf (EBF) and Icariin (ICA) are the main medicinal components of Epimedium, and ICA is one of the main active substances in EBF. Modern pharmacological studies have shown that EBF has a variety of biological activities such as improving osteoporosis, promoting cell proliferation, antioxidant and anti-inflammatory properties, etc. However, few studies have been conducted on the nephrotoxicity caused by optimized CTX extraction, and protein-ligand binding has not been involved. This research, through the response surface optimization extraction of EBF, obtained the best extraction conditions: ethanol concentration was 60%, solid-liquid ratio of 25:1, ultrasonic time was about 25 min. Combined with mass spectrometry (MS) analysis, EBF contained ICA, ichopidin A, ichopidin B, ichopidin C, and other components. In this study, we adopted a computational chemistry method called molecular docking, and the results show that Icariin was well bound to the antioxidant target proteins KEAP1 and NRF2, and the anti-inflammatory target proteins COX-2 and NF-κB, with free binding energies of -9.8 kcal/mol, -11.0 kcal/mol, -10.0 kcal/mol, and -8.1 kcal/mol, respectively. To study the protective effect of EBF on the nephrotoxicity of CTX, 40 male Kunming mice (weight 18 ± 22) were injected with CTX (80 mg/kg) for 7 days to establish the nephrotoxicity model and were treated with EBF (50 mg/kg, 100 mg/kg) for 8 days by gavage. After CTX administration, MDA, BUN, Cre, and IL-6 levels in serum increased, MDA increased in kidney, GPT/ALT and IL-6 increased in liver, and IL-6 increased in spleen and was significant ((p < 0.05 or (p < 0.01)). Histopathological observation showed that renal cortex glomerular atrophy necrosis, medullary inflammatory cell infiltration, and other lesions. After administration of EBF, CTX-induced increase in serum level of related indexes was reduced, and MDA in kidney, GPT/ALT and IL-6 in liver, and IL-6 in spleen were increased. At the same time, histopathological findings showed that the necrosis of medullary and corticorenal tubular epithelium was relieved at EBF (50 mg/kg) dose compared with the CTX group, and the glomerular tubular necrosis gradually became normal at EBF (100 mg/kg) dose. Western blot analysis of Keap1 and Nrf2 protein expression in kidney tissue showed that compared with model CTX group, the drug administration group could alleviate the high expression of Keap1 protein and low expression of Nrf2 protein in kidney tissue. Conclusion: After the optimal extraction of total flavonoids from the stems and leaves of Epimedium, the molecular docking technique combined with animal experiments suggested that the effective component of the total flavonoids of Epimedium might activate the Keap1-Nrf2 signaling pathway after treatment to reduce the inflammation and oxidative stress of kidney tissue, so as to reduce kidney damage and improve kidney function. Therefore, EBF may become a new natural protective agent for CTX chemotherapy in the future.
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Affiliation(s)
- Meiling Shi
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (M.S.); (H.P.); (L.S.); (W.C.); (Y.Z.); (Y.Z.); (R.D.)
| | - Hongyan Pei
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (M.S.); (H.P.); (L.S.); (W.C.); (Y.Z.); (Y.Z.); (R.D.)
| | - Li Sun
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (M.S.); (H.P.); (L.S.); (W.C.); (Y.Z.); (Y.Z.); (R.D.)
| | - Weijia Chen
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (M.S.); (H.P.); (L.S.); (W.C.); (Y.Z.); (Y.Z.); (R.D.)
| | - Ying Zong
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (M.S.); (H.P.); (L.S.); (W.C.); (Y.Z.); (Y.Z.); (R.D.)
| | - Yan Zhao
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (M.S.); (H.P.); (L.S.); (W.C.); (Y.Z.); (Y.Z.); (R.D.)
- Engineering Research Center for Efficient Breeding and Product Development of Sika Deer, Changchun 130118, China
| | - Rui Du
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (M.S.); (H.P.); (L.S.); (W.C.); (Y.Z.); (Y.Z.); (R.D.)
- Engineering Research Center for Efficient Breeding and Product Development of Sika Deer, Changchun 130118, China
| | - Zhongmei He
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (M.S.); (H.P.); (L.S.); (W.C.); (Y.Z.); (Y.Z.); (R.D.)
- Engineering Research Center for Efficient Breeding and Product Development of Sika Deer, Changchun 130118, China
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Huong NT, Son NT. Icaritin: A phytomolecule with enormous pharmacological values. PHYTOCHEMISTRY 2023:113772. [PMID: 37356700 DOI: 10.1016/j.phytochem.2023.113772] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 05/24/2023] [Accepted: 06/10/2023] [Indexed: 06/27/2023]
Abstract
Pharmacological studies on flavonoids have always drawn much interest for many years. Icaritin (ICT), a representative flavone containing an 8-prenyl group, is a principal compound detected in medicinal plants of the genus Epimedum, the family Berberidaceae. Experimental results in the phytochemistry and pharmacology of this molecule are abundant now, but a deep overview has not been carried out. The goal of this review is to provide an insight into the natural observation, biosynthesis, biotransformation, synthesis, pharmacology, and pharmacokinetics of prenyl flavone ICT. The relevant data on ICT was collected from bibliographic sources, like Google Scholar, Web of Science, Sci-Finder, and various published journals. "Icaritin" alone or in combination is the main keyword to seek for references, and references have been updated till now. ICT is among the characteristic phytomolecules of Epimedum plants. Bacteria monitored its biosynthesis and biotransformation, while this agent was rapidly synthesized from phloroglucinol by microwave-assistance Claisen rearrangement. ICT is a potential agent in numerous in vitro and in vivo pharmacological records, which demonstrated its role in cancer treatments via apoptotic-related mechanisms. It also brings in various health benefits since it reduced harmful effects on the liver, lung, heart, bone, blood, and skin, and improved immune responses. Pharmacokinetic outcomes indicated that its metabolic pathway involved hydration, hydroxylation, dehydrogenation, glycosylation, and glucuronidation. Molecule mechanisms of action at a cellular level are predominant, but clinical studies are expected to get more. Structure-activity relationship records seem insufficient, and the studies on nano-combined approaches to improve its soluble property in living bodied medium are needed.
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Affiliation(s)
- Nguyen Thi Huong
- Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Viet Nam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam.
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Zhang Y, Ma S, Zhang J, Lou L, Liu W, Gao C, Miao L, Sun F, Chen W, Cao X, Wei J. MicroRNA-142-3p promotes renal cell carcinoma progression by targeting RhoBTB3 to regulate HIF-1 signaling and GGT/GSH pathways. Sci Rep 2023; 13:5935. [PMID: 37045834 PMCID: PMC10097650 DOI: 10.1038/s41598-022-21447-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 09/27/2022] [Indexed: 04/14/2023] Open
Abstract
MicroRNAs play a critical regulatory role in different cancers, but their functions in renal cell carcinoma (RCC) have not been elucidated. Reportedly, miR-142-3p is involved in the tumorigenesis and the development of RCC in vitro and is clinically correlated with the poor prognosis of RCC patients. However, the molecular target of miR-142-3p and the underlying mechanism are unclear. In this study, we found that miR-142-3p was upregulated in RCC tumor tissues and downregulated in exosomes compared to normal tissues. The expression of miR-142-3p was inversely associated with the survival of patients with kidney renal clear cell carcinoma (KIRC). RhoBTB3 was reduced in RCC, and miR-142-3p plays an inverse function with RhoBTB3 in KIRC. The direct interaction between RhoBTB3 and miR-142-3p was demonstrated by a dual luciferase reporter assay. miR-142-3p promoted metastasis in the xenograft model, and the suppression of miR-142-3p upregulated RhoBTB3 protein expression and inhibited the mRNAs and proteins of HIF1A, VEGFA, and GGT1. Also, the miR-142-3p overexpression upregulated the mRNA of HIF1A, VEGFA, and GGT1. In conclusion, miR-142-3p functions as an oncogene in RCC, especially in KIRC, by targeting RhoBTB3 to regulate HIF-1 signaling and GGT/GSH pathways, which needs further exploration.
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Affiliation(s)
- Yijing Zhang
- Department of Urology, China University of Mining and Technology, Xuzhou No.1 People's Hospital, Xuzhou, China
| | - Sha Ma
- Department of Hematopathology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Jun Zhang
- Department of Pulmonary and Critical Care Medicine, Yantaishan Hospital, Yantai, China
| | - Lu Lou
- Department of Urology, China University of Mining and Technology, Xuzhou No.1 People's Hospital, Xuzhou, China
| | - Wanqi Liu
- Department of Urology, China University of Mining and Technology, Xuzhou No.1 People's Hospital, Xuzhou, China
| | - Chao Gao
- Department of Urology, China University of Mining and Technology, Xuzhou No.1 People's Hospital, Xuzhou, China
| | - Long Miao
- Department of Urology, China University of Mining and Technology, Xuzhou No.1 People's Hospital, Xuzhou, China
| | - Fanghao Sun
- Department of Urology, China University of Mining and Technology, Xuzhou No.1 People's Hospital, Xuzhou, China
| | - Wei Chen
- Department of Urology, China University of Mining and Technology, Xuzhou No.1 People's Hospital, Xuzhou, China
| | - Xiliang Cao
- Department of Urology, China University of Mining and Technology, Xuzhou No.1 People's Hospital, Xuzhou, China.
| | - Jin Wei
- Department of Urology, China University of Mining and Technology, Xuzhou No.1 People's Hospital, Xuzhou, China.
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Astragaloside IV mitigates cerebral ischaemia-reperfusion injury via inhibition of P62/Keap1/Nrf2 pathway-mediated ferroptosis. Eur J Pharmacol 2023; 944:175516. [PMID: 36758783 DOI: 10.1016/j.ejphar.2023.175516] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/22/2022] [Accepted: 01/16/2023] [Indexed: 02/09/2023]
Abstract
Cerebral ischaemia-reperfusion injury (CIRI) is a critical component of ischaemic stroke pathogenesis. Ferroptosis contributes to and aggravates CIRI, whereas the P62/Kelch-like ECH-associated protein 1 (Keap1)/NF-E2-related factor 2 (Nrf2) pathway exerts neuroprotective effects. Astragaloside IV (AST IV) is the primary active ingredient of Astragalus, an herb with anti-CIRI properties used in traditional Chinese medicine. However, the mechanism of its anti-CIRI action is unclear. This study examined the mechanisms underlying the anti-CIRI action of AST IV using a combination of in vitro and in vivo approaches. We established an erastin-induced ferroptosis model, oxygen and glucose deprivation/reoxygenation (OGD/R)-induced model in SH-SY5Y cells, and middle cerebral artery occlusion-reperfusion (MCAO/R) model using Sprague-Dawley rats. The extent of cell damage and brain damage in rats, ferroptosis indicator changes, and expression of P62, Keap1, and Nrf2 were investigated. AST IV inhibited erastin-induced ferroptosis, attenuated OGD/R-induced cell damage, and ameliorated sensorimotor dysfunction and injury in the MCAO/R model. Further, AST IV promoted Nrf2 activation, inhibited ferroptosis, and reduced cell damage. Notably, these effects were inhibited by ML385, an Nrf2 inhibitor. AST IV increased the P62 and Nrf2 levels and decreased the Keap1 levels. P62 silencing reduced the effects of AST IV on the P62/Keap1/Nrf2 pathway and ferroptosis. Our findings suggest that AST IV mitigates CIRI by inhibiting ferroptosis via activation of the P62/Keap1/Nrf2 pathway. This study provides an important scientific basis and direction for the application and research of AST IV and provides new potential targets and ideas for the study of the pathological mechanism of CIRI.
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Tang Y, Sun L, Zhao Y, Yao J, Feng Z, Liu Z, Zhang G, Sun C. UHPLC-ESI-QE-Orbitrap-MS based metabolomics reveals the antioxidant mechanism of icaritin on mice with cerebral ischemic reperfusion. PeerJ 2023; 11:e14483. [PMID: 36643627 PMCID: PMC9838208 DOI: 10.7717/peerj.14483] [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: 09/29/2022] [Accepted: 11/08/2022] [Indexed: 01/12/2023] Open
Abstract
Background Icaritin (ICT) has been previously demonstrated to display protective effects against cerebral ischemic reperfusion (I/R) by inhibiting oxidative stress, but the mechanism remains unclear. This study aimed to explore the mechanism from the perspective of metabolomics. Methods A mice cerebral artery occlusion/reperfusion (MCAO/R) model was explored to mimic cerebral ischemic reperfusion and protective effect of ICT was assessed by neurologic deficit scoring, infarct volume and brain water content. Ultra-high-performance liquid chromatography electrospray ionization orbitrap tandem mass spectrometry (UHPLC-ESI-QE-Orbitrap-MS) based metabolomic was performed to explore potential biomarkers. Brain tissue metabolic profiles were analyzed and metabolic biomarkers were identified through multivariate data analysis. The protein levels of Nrf2, HO-1 and HQO1 were assayed by western blot. The release of malondialdehyde (MDA) and the activity of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT) were detected using corresponding assay kits. Results The results showed that after ICT treatment, the neurological deficit, cerebral infarction area, brain edema and the level of MDA in brain tissue of MCAO/R mice were significantly reduced. Meanwhile, ICT enhanced the activity of SOD, CAT and GSH-Px. Western blot results confirmed that ICT up-regulated the protein levels of antioxidant-related protein including Nrf2, HO-1 and NQO1. According to the metabolomic profiling of brain tissues, clear separations were observed among the Sham, Model and ICT groups. A total of 44 biomarkers were identified, and the identified biomarkers were mainly related to linoleic acid metabolism, arachidonic acid metabolism, alanine, aspartate and glutamate metabolism, arginine biosynthesis, arginine and proline metabolism, D-glutamine and D-glutamate metabolism, taurine and hypotaurine metabolism and purine metabolism, respectively. At the same time, the inhibitory effect of ICT on arachidonic acid and linoleic acid in brain tissue, as well as the promoting effect on taurine, GABA, NAAG, may be the key factors for the anti-neurooxidative function of mice after MCAO/R injury. Conclusion Our results demonstrate that ICT has benefits for MCAO/R injury, which are partially related to the suppression of oxidative stress via stimulating the Nrf2 signaling and regulating the production of arachidonic acid, linoleic acid, taurine, GABA, NAAG in brain tissue.
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Affiliation(s)
- Yunfeng Tang
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, Shandong Province, China
| | - Lixin Sun
- Linyi Traditional Chinese Medicine Hospital, Linyi, Shandong Province, China
| | - Yun Zhao
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, Shandong Province, China
| | - Jingchun Yao
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, Shandong Province, China
| | - Zhong Feng
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, Shandong Province, China,School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong Province, China
| | - Zhong Liu
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, Shandong Province, China
| | - Guimin Zhang
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, Shandong Province, China
| | - Chenghong Sun
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, Shandong Province, China
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Wu CT, Yang TH, Chen MC, Guan SS, Chen CM, Liu SH. Therapeutic Effect of Icaritin on Cerebral Ischemia-Reperfusion-Induced Senescence and Apoptosis in an Acute Ischemic Stroke Mouse Model. Molecules 2022; 27:molecules27185783. [PMID: 36144517 PMCID: PMC9500895 DOI: 10.3390/molecules27185783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/03/2022] [Accepted: 09/05/2022] [Indexed: 12/02/2022] Open
Abstract
An ischemic stroke is brain damage caused by interruption of blood supply to the brain that can cause death and long-term disability. New medical strategies or therapies are urgently needed for ischemic stroke. Icaritin (ICT) is a metabolite of icariin (ICA), which are two active flavonoid components extracted from Herba epimedii and considered neuroprotective agents in animal models of Alzheimer’s disease and ischemic stroke. The therapeutic effect of ICT on ischemic still remains to be clarified. The aim of this study was to investigate the therapeutic effect of ICT on cerebral ischemia-reperfusion-associated senescence and apoptosis in a middle cerebral artery occlusion (MCAO) mouse model (ischemia for 50 min and reperfusion for 24 h). Administration of ICT after ischemia significantly reduced MCAO-induced neurological damage, infarct volume, and histopathological changes in the brain of acute ischemic stroke mice. ICT treatment could also reduce neuronal apoptosis and senescence and reversed the expression of apoptosis- and senescence-related signaling proteins. These findings suggest that ICT may have therapeutic potential to ameliorate acute ischemic stroke.
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Affiliation(s)
- Cheng-Tien Wu
- Department of Nutrition, China Medical University, Taichung 406040, Taiwan
- Master Program for Food and Drug Safety, China Medical University, Taichung 406040, Taiwan
| | - Ting-Hua Yang
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10051, Taiwan
| | - Man-Chih Chen
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Siao-Syun Guan
- Institute of Nuclear Energy Research, Atomic Energy Council, Taoyuan 32546, Taiwan
| | - Chang-Mu Chen
- Division of Neurosurgery, Department of Surgery, College of Medicine and Hospital, National Taiwan University, Taipei 10051, Taiwan
- Correspondence: (C.-M.C.); (S.-H.L.)
| | - Shing-Hwa Liu
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 406040, Taiwan
- Department of Pediatrics, College of Medicine and Hospital, National Taiwan University, Taipei 10051, Taiwan
- Correspondence: (C.-M.C.); (S.-H.L.)
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10
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Luo Z, Dong J, Wu J. Impact of Icariin and its derivatives on inflammatory diseases and relevant signaling pathways. Int Immunopharmacol 2022; 108:108861. [PMID: 35597118 DOI: 10.1016/j.intimp.2022.108861] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/05/2022] [Accepted: 05/10/2022] [Indexed: 02/06/2023]
Abstract
Herba Epimedii is a famous herb collected from China and Korea. It has been used for impotency, osteoporosis, and amnestic treatment for thousands of years. Icariin, a typical flavonoid compound isolated from Herba Epimedii, was reported as a potential anti-inflammatory drug. Icariside and icaritin are the two metabolites of icariin. Icariin and its metabolites have been used to treat a wide range of inflammatory diseases, such as atherosclerosis, Alzheimer's disease, depression, osteoarthritis, and asthma. They exert powerful suppression of proinflammatory signaling, such as NF-κB and MAPKs. More importantly, they can upregulate anti-inflammatory signaling, such as GR and Nrf2. In this study, we review the therapeutic effects and mechanisms of icariin and its metabolites in inflammatory diseases and provide novel insights into these potential anti-inflammatory drugs.
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Affiliation(s)
- Zhuyu Luo
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, PR China
| | - Jingcheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, PR China.
| | - Jinfeng Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, PR China.
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11
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Zhang HT, Wang XZ, Zhang QM, Zhao H. Neuroprotection of chromobox 7 knockout in the mouse after cerebral ischemia-reperfusion injury via nuclear factor E2-related factor 2/hemeoxygenase-1 signaling pathway. Hum Exp Toxicol 2022; 41:9603271221094660. [PMID: 35435747 DOI: 10.1177/09603271221094660] [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] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To explore the mechanism of chromobox 7 (CBX7)-mediated nuclear factor E2-related factor 2 (Nrf2)/hemeoxygenase-1 (HO-1) signaling pathway in the cerebral ischemia/reperfusion (I/R) injury. METHODS The experimental wild-type (WT) and CBX7-/- mice were used to establish cerebral I/R models using the middle cerebral artery occlusion (MCAO) surgery to determine CBX7 levels at different time points after MCAO injury. For all mice, neurological behavior, infarct size, water content, and oxidative stress-related indicators were determined, and transferase (TdT)-mediated dUTP-biotin nick-end labeling (terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick-end labeling (TUNEL)) staining method was employed to observe cell apoptosis, while Western blot to measure the expression of CBX7 and Nrf/HO-1 pathway-related proteins. RESULTS At 6 h, 12 h, 24 h, 3 days, and 7 days after mice with MCAO, CBX7 expression was gradually up-regulated and the peak level was reached at 24 h. Mice in the WT + MCAO group had increased infarct size, with significant increases in the modified neurological severity scores and water content in the brain, as well as the quantity of TUNEL-positive cells. For the oxidative stress-indicators, an increase was seen in the content of MDA (malondial dehyde), but the activity of SOD (superoxide dismutase) and content of GSH-PX (glutathione peroxidase) and CAT (catalase) were decreased; meanwhile, the protein expression of CBX7, HO-1, and nuclear Nrf2 was up-regulated, while the cytoplasmic Nrf2 was down-regulated. Moreover, CBX7 knockout attenuated I/R injury in mice. CONCLUSION Knockout of CBX7 may protect mice from cerebral I/R injury by reducing cell apoptosis and oxidative stress, possibly via activating the Nrf2/HO-1 pathway.
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Affiliation(s)
- Hai-Tao Zhang
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, China
| | - Xi-Zeng Wang
- The Third Department of Surgery, Xintai Hospital of Traditional Chinese Medicine, Xintai, China
| | - Qing-Mei Zhang
- Department of Nursing, Shandong Liaocheng Veteran Hospital, Liaocheng City, China
| | - Han Zhao
- Department of Neurosurgery, 230965Taian Central Hospital, Taian, China
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12
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Soriano-Castell D, Liang Z, Maher P, Currais A. Profiling the chemical nature of anti-oxytotic/ferroptotic compounds with phenotypic screening. Free Radic Biol Med 2021; 177:313-325. [PMID: 34748909 PMCID: PMC8639737 DOI: 10.1016/j.freeradbiomed.2021.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/29/2021] [Accepted: 11/03/2021] [Indexed: 12/26/2022]
Abstract
Because old age is the greatest risk factor for Alzheimer's disease (AD), it is critical to target the pathological events that link aging to AD in order to develop an efficient treatment that acts upon the primary causes of the disease. One such event might be the activation of oxytosis/ferroptosis, a unique cell death mechanism characterized by mitochondrial dysfunction and lethal lipid peroxidation. Here, a comprehensive library of >900 natural compounds was screened for protection against oxytosis/ferroptosis in nerve cells with the goal of better understanding the chemical nature of inhibitors of oxytosis/ferroptosis. Although the compounds tested spanned structurally diverse chemical classes from animal, microbial, plant and synthetic origins, a small set of very potent anti-oxytotic/ferroptotic compounds was identified that was highly enriched in plant quinones. The ability of these compounds to protect against oxytosis/ferroptosis strongly correlated with their ability to protect against in vitro ischemia and intracellular amyloid-beta toxicity in nerve cells, indicating that aspects of oxytosis/ferroptosis also underly other toxicities that are relevant to AD. Importantly, the anti-oxytotic/ferroptotic character of the quinone compounds relied on their capacity to target and directly prevent lipid peroxidation in a manner that required the reducing activity of cellular redox enzymes, such as NAD(P)H:quinone oxidoreductase 1 (NQO1) and ferroptosis suppressor protein 1 (FSP1). Because some of the compounds increased the production of total reactive oxygen species while decreasing lipid peroxidation, it appears that the pro-oxidant character of a compound can coexist with an inhibitory effect on lipid peroxidation and, consequently, still prevent oxytosis/ferroptosis. These findings have significant implications for the understanding of oxytosis/ferroptosis and open new approaches to the development of future neurotherapies.
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Affiliation(s)
- David Soriano-Castell
- Cellular Neurobiology Laboratory, The Salk Institute for Biological Studies, 10010 N. Torrey Pines Rd. La Jolla, CA, 92037, USA.
| | - Zhibin Liang
- Cellular Neurobiology Laboratory, The Salk Institute for Biological Studies, 10010 N. Torrey Pines Rd. La Jolla, CA, 92037, USA
| | - Pamela Maher
- Cellular Neurobiology Laboratory, The Salk Institute for Biological Studies, 10010 N. Torrey Pines Rd. La Jolla, CA, 92037, USA
| | - Antonio Currais
- Cellular Neurobiology Laboratory, The Salk Institute for Biological Studies, 10010 N. Torrey Pines Rd. La Jolla, CA, 92037, USA.
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Bioactive Flavonoids Icaritin and Icariin Protect against Cerebral Ischemia-Reperfusion-Associated Apoptosis and Extracellular Matrix Accumulation in an Ischemic Stroke Mouse Model. Biomedicines 2021; 9:biomedicines9111719. [PMID: 34829948 PMCID: PMC8615444 DOI: 10.3390/biomedicines9111719] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 01/01/2023] Open
Abstract
Stroke, which is the second leading cause of mortality in the world, is urgently needed to explore the medical strategies for ischemic stroke treatment. Both icariin (ICA) and icaritin (ICT) are the major active flavonoids extracted from Herba epimedii that have been regarded as the neuroprotective agents in disease models. In this study, we aimed to investigate and compare the neuroprotective effects of ICA and ICT in a middle cerebral artery occlusion (MCAO) mouse model. Male ICR mice were pretreated with both ICA and ICT, which ameliorated body weight loss, neurological injury, infarct volume, and pathological change in acute ischemic stroke mice. Furthermore, administration of both ICA and ICT could also protect against neuronal cell apoptotic death, oxidative and nitrosative stress, lipid peroxidation, and extracellular matrix (ECM) accumulation in the brains. The neuroprotective effects of ICT are slightly better than that of ICA in acute cerebral ischemic stroke mice. These results suggest that pretreatment with both ICA and ICT improves the neuronal cell apoptosis and responses of oxidative/nitrosative stress and counteracts the ECM accumulation in the brains of acute cerebral ischemic stroke mice. Both ICA and ICT treatment may serve as a useful therapeutic strategy for acute ischemic stroke.
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Hou Y, Kuang W, Min W, Liu Z, Zhang F, Yuan K, Wang X, Sun C, Cheng H, Wang L, Xiao Y, Pu S, Xin GZ, Yang P. Design, Synthesis, and Biological Evaluation of Icaritin Derivatives as Novel Putative DEPTOR Inhibitors for Multiple Myeloma Treatment. J Med Chem 2021; 64:14942-14954. [PMID: 34644502 DOI: 10.1021/acs.jmedchem.1c00087] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Icaritin is an active ingredient in Epimedium, which has a variety of pharmacological activities. However, the low activity of Icaritin and the unclear target greatly limit its application. Therefore, based on the structure of Icaritin, we adopted the strategy of replacing toxic groups and introducing active groups to design and synthesize a series of new analogues. The top compound C3 exhibited better antimultiple myeloma activity with an IC50 of 1.09 μM for RPMI 8226 cells, induced RPMI 8226 apoptosis, and blocked the cell cycle in the S phase. Importantly, transcriptome analysis, cellular thermal shift assay, and microscale thermophoresis assay confirmed that DEPTOR was the target of C3. Moreover, we explored its binding mode with C3. Especially, C3 displayed satisfactory inhibition of tumor growth in RPMI 8226 xenografts without obvious side effects. In summary, C3 was discovered as a novel putative inhibitor of DEPTOR for the treatment of multiple myeloma.
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Affiliation(s)
- Yi Hou
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,State Key Laboratory of Natural Medicines, Department of Chinese Medicines Analysis, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.,Department of Chinese Medicine Resources, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Wenbin Kuang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Wenjian Min
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Ziwen Liu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
| | - Fang Zhang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Kai Yuan
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Xiao Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Chengliang Sun
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Hao Cheng
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Liping Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yibei Xiao
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
| | - Sheban Pu
- Department of Chinese Medicine Resources, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Gui-Zhong Xin
- State Key Laboratory of Natural Medicines, Department of Chinese Medicines Analysis, China Pharmaceutical University, Nanjing 210009, China.,Department of Chinese Medicine Resources, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Peng Yang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
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15
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Zhou Y, Huang N, Li Y, Ba Z, Zhou Y, Luo Y. Icaritin protects SH-SY5Y cells transfected with TDP-43 by alleviating mitochondrial damage and oxidative stress. PeerJ 2021; 9:e11978. [PMID: 34434670 PMCID: PMC8362678 DOI: 10.7717/peerj.11978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 07/24/2021] [Indexed: 12/31/2022] Open
Abstract
Background The aim of this study was to investigate the effect of icaritin (ICT) on TAR DNA-binding protein 43 (TDP-43)-induced neuroblastoma (SH-SY5Y) cell damage and to further explore its underlying mechanisms. Methods To investigate the possible mechanism, TDP-43 was used to induce SH-SY5Y cell injury. Cell viability was evaluated by the CCK-8 assay. The mitochondrial membrane potential (MMP) was determined with JC-1. The expression levels of TDP-43 and cytochrome C (CytC) were measuring by Western blotting. Changes in adenosine 5′-triphosphate (ATP) content, total antioxidative capacity (T-AOC), glutathione peroxidase (GSH-Px) activity, superoxide dismutase (SOD) activity and malondialdehyde (MDA) content were detected with specific kits. Results The results showed that ICT reduced the cell damage induced by TDP-43. ICT reduced the expression level of TDP-43; increased ATP content and the MMP; decreased CytC expression; increased T-AOC and GSH-Px, total SOD (T-SOD), copper/zinc SOD (CuZn-SOD), and manganese SOD (Mn-SOD) activity; and decreased MDA content. Conclusions The results suggest that ICT has a protective effect on TDP-43-transfected SH-SY5Y cells that is related to reductions in TDP-43 expression and mitochondrial damage and alleviation of oxidative stress.
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Affiliation(s)
- Yongjian Zhou
- Department of Neurology, Xiangtan Central Hospital, Xiangtan, Hunan, China.,Department of Neurology, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Nanqu Huang
- National Drug Clinical Trial Institution, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Yuanyuan Li
- National Drug Clinical Trial Institution, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Zhisheng Ba
- National Drug Clinical Trial Institution, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Yanjun Zhou
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Yong Luo
- Department of Neurology, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
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16
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Zhang HT, Wang XZ, Zhang QM, Zhao H. Neuroprotection of chromobox 7 knockout in the mouse after cerebral ischemia-reperfusion injury via nuclear factor E2-related factor 2/hemeoxygenase-1 signaling pathway. Hum Exp Toxicol 2021; 40:S178-S186. [PMID: 34353139 DOI: 10.1177/09603271211036122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To explore the mechanism of chromobox 7 (CBX7)-mediated nuclear factor E2-related factor 2 (Nrf2)/hemeoxygenase-1 (HO-1) signaling pathway in the cerebral ischemia/reperfusion (I/R) injury. METHODS The experimental wild-type (WT) and CBX7-/- mice were used to establish cerebral I/R models using the middle cerebral artery occlusion (MCAO) surgery to determine CBX7 levels at different time points after MCAO injury. For all mice, neurological behavior, infarct size, water content, and oxidative stress-related indicators were determined, and transferase (TdT)-mediated dUTP-biotin nick-end labeling (terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick-end labeling (TUNEL)) staining method was employed to observe cell apoptosis, while Western blot to measure the expression of CBX7 and Nrf/HO-1 pathway-related proteins. RESULTS At 6 h, 12 h, 24 h, 3 days, and 7 days after mice with MCAO, CBX7 expression was gradually up-regulated and the peak level was reached at 24 h. Mice in the WT + MCAO group had increased infarct size, with significant increases in the modified neurological severity scores and water content in the brain, as well as the quantity of TUNEL-positive cells. For the oxidative stress-indicators, an increase was seen in the content of MDA (malondial dehyde), but the activity of SOD (superoxide dismutase) and content of GSH-PX (glutathione peroxidase) and CAT (catalase) were decreased; meanwhile, the protein expression of CBX7, HO-1, and nuclear Nrf2 was up-regulated, while the cytoplasmic Nrf2 was down-regulated. Moreover, CBX7 knockout attenuated I/R injury in mice. CONCLUSION Knockout of CBX7 may protect mice from cerebral I/R injury by reducing cell apoptosis and oxidative stress, possibly via activating the Nrf2/HO-1 pathway.
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Affiliation(s)
- Hai-Tao Zhang
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, China
| | - Xi-Zeng Wang
- The Third Department of Surgery, Xintai Hospital of Traditional Chinese Medicine, Xintai, China
| | - Qing-Mei Zhang
- Department of Nursing, Shandong Liaocheng Veteran Hospital, Liaocheng City, China
| | - Han Zhao
- Department of Neurosurgery, 230965Taian Central Hospital, Taian, China
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Wu H, Liu X, Gao ZY, Lin M, Zhao X, Sun Y, Pu XP. Icaritin Provides Neuroprotection in Parkinson's Disease by Attenuating Neuroinflammation, Oxidative Stress, and Energy Deficiency. Antioxidants (Basel) 2021; 10:antiox10040529. [PMID: 33805302 PMCID: PMC8066334 DOI: 10.3390/antiox10040529] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 03/24/2021] [Accepted: 03/26/2021] [Indexed: 12/17/2022] Open
Abstract
Neuroinflammation, oxidative stress, and mitochondrial dysfunction are all important pathogenic mechanisms underlying motor dysfunction and dopaminergic neuronal damage observed in patients with Parkinson’s disease (PD). However, despite extensive efforts, targeting inflammation and oxidative stress using various approaches has not led to meaningful clinical outcomes, and mitochondrial enhancers have also failed to convincingly achieve disease-modifying effects. We tested our hypothesis that treatment approaches in PD should simultaneously reduce neuroinflammation, oxidative stress, and improve alterations in neuronal energy metabolism using the flavonoid icaritin in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of PD. Using matrix-assisted laser desorption/ionization–mass spectrometry imaging (MALDI-MSI), coupled with biochemical analyses and behavioral tests, we demonstrate that icaritin improves PD by attenuating the the NOD-like receptor family pyrin domain-containing protein 3 (NLRP3) inflammasome activity and stabilizing mitochondrial function, based on our extensive analyses showing the inhibition of NLRP3 inflammasome, reduction of NLRP3-mediated IL-1β secretion, and improvements in the levels of antioxidant molecules. Our data also indicated that icaritin stabilized the levels of proteins related to mitochondrial function, such as voltage-dependent anion channel (VDAC) and ATP synthase subunit beta (ATP5B), as well as those of molecules related to energy metabolism, such as ATP and ADP, ultimately improving mitochondrial dysfunction. By employing molecular docking, we also discovered that icaritin can interact with NLRP3, VDAC, ATP5B, and several blood–brain barrier (BBB)-related proteins. These data provide insights into the promising therapeutic potential of icaritin in PD.
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Affiliation(s)
- Hao Wu
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China; (H.W.); (X.L.); (Z.-Y.G.); (M.L.); (X.Z.); (Y.S.)
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xi Liu
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China; (H.W.); (X.L.); (Z.-Y.G.); (M.L.); (X.Z.); (Y.S.)
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ze-Yu Gao
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China; (H.W.); (X.L.); (Z.-Y.G.); (M.L.); (X.Z.); (Y.S.)
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ming Lin
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China; (H.W.); (X.L.); (Z.-Y.G.); (M.L.); (X.Z.); (Y.S.)
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xin Zhao
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China; (H.W.); (X.L.); (Z.-Y.G.); (M.L.); (X.Z.); (Y.S.)
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yi Sun
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China; (H.W.); (X.L.); (Z.-Y.G.); (M.L.); (X.Z.); (Y.S.)
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiao-Ping Pu
- National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China; (H.W.); (X.L.); (Z.-Y.G.); (M.L.); (X.Z.); (Y.S.)
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- Correspondence: ; Tel.: +86-10-8280-2431
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18
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Qin W, Zhao X, Tai J, Qin G, Yu S. Combination of Dendrobium Mixture and Metformin Curbs the Development and Progression of Diabetic Cardiomyopathy by Targeting the lncRNA NEAT1. Clinics (Sao Paulo) 2021; 76:e2669. [PMID: 34231706 PMCID: PMC8240788 DOI: 10.6061/clinics/2021/e2669] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 05/21/2021] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES This study aimed to explore the efficacy of combination treatment with dendrobium mixture and metformin (Met) in diabetic cardiomyopathy (DCM) and its effects on NEAT1 and the Nrf2 signaling pathway. METHODS H9c2 cells were maintained in medium supplemented with either low (5.5 mmol/L) or high (50 mmol/L) glucose. Male Sprague-Dawley rats were fed a high-glucose diet and administered a single, low dose of streptozotocin (35 mg/kg) via intraperitoneal injection to induce the development of DM. After induction of DM, the rats were treated with dendrobium mixture (10 g/kg) and Met (0.18 g/kg) daily for 4 weeks. Next, quantitative reverse transcription (qRT)-PCR and western blotting were performed to evaluate the expression levels of target genes and proteins. Flow cytometry was performed to assess apoptosis, and hematoxylin and eosin staining was performed to evaluate the morphological changes in rat cardiac tissue. RESULTS In patients with diabetes mellitus (DM) and myocardial cells and heart tissues from rats with high glucose-induced DM, NEAT1 was downregulated, and the expression levels of Nrf2 were decreased (p<0.01, p<0.001). The combination of dendrobium mixture and Met upregulated the expression of NEAT1 which upregulated Nrf2 by targeting miR-23a-3p, resulting in reduced apoptosis and improved cardiac tissue morphology (p<0.01, p<0.001). CONCLUSION Dendrobium mixture and Met upregulated the expression of NEAT1 in DCM, thereby inhibiting apoptosis of myocardial cells.
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Affiliation(s)
- Wenmin Qin
- Department of Pharmacy, The Second People's Hospital of Dongying, Dongying, Shandong 257335, China
| | - Xing Zhao
- Department of Pharmacy, The Fifth Central Hospital of Tianjin, Tianjin 300450, China
| | - Jie Tai
- Department of Rehabilitation Medicine, The Second People's Hospital of Liaocheng, Liaocheng, Shandong 252000, China
| | - Guoyun Qin
- Department of Pharmacy, Yidu Central Hospital of Weifang, Qingzhou, Shandong 262500, China
| | - Shanshan Yu
- Department of Pharmacy, The Second People's Hospital of Dongying, Dongying, Shandong 257335, China
- Corresponding author. E-mail:
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