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Xiao J, Luo C, Li A, Cai F, Wang Y, Pan X, Xu L, Wang Z, Xing Z, Yu L, Chen Y, Tian M. Icariin inhibits chondrocyte ferroptosis and alleviates osteoarthritis by enhancing the SLC7A11/GPX4 signaling. Int Immunopharmacol 2024; 133:112010. [PMID: 38636375 DOI: 10.1016/j.intimp.2024.112010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Chondrocyte ferroptosis plays a critical role in the pathogenesis of osteoarthritis (OA), regulated by the SLC7A11/GPX4 signaling pathway. Icariin (ICA), a flavonoid glycoside, exhibits strong anti-inflammatory and antioxidant activities. This study investigated whether ICA could modulate the SLC7A11/GPX4 signaling to inhibit chondrocyte ferroptosis and alleviate OA. PURPOSE The objective was to explore the impact of ICA on chondrocyte ferroptosis in OA and its modulation of the SLC7A11/GPX4 signaling pathway. METHODS The anti-ferroptosis effects of ICA were evaluated in an interleukin-1β (IL-1β)-treated SW1353 cell model, using Ferrostatin-1 (Fer-1) and Erastin (Era) as ferroptosis inhibitor and inducer, respectively, along with GPX4 knockdown via lentivirus-based shRNA. Additionally, the therapeutic efficacy of ICA on OA-related articular cartilage damage was assessed in rats through histopathology and immunohistochemistry (IHC). RESULTS IL-1β treatment upregulated the expression of OA-associated matrix metalloproteinases (MMP3 and MMP1), a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS-5), and increased intracellular ROS, lipid ROS, and MDA levels while downregulating collagen II and SOX9 expression in SW1353 cells. ICA treatment countered the IL-1β-induced upregulation of MMPs and ADAMTS-5, restored collagen II and SOX9 expression, and reduced intracellular ROS, lipid ROS, and MDA levels. Furthermore, IL-1β upregulated P53 but downregulated SLC7A11 and GPX4 expression in SW1353 cells, effects that were mitigated by ICA or Fer-1 treatment. Significantly, ICA also alleviated Era-induced ferroptosis, whereas it had no effect on GPX4-silenced SW1353 cells. In vivo, ICA treatment reduced articular cartilage damage in OA rats by partially restoring collagen II and GPX4 expression, inhibiting cartilage extracellular matrix (ECM) degradation and chondrocyte ferroptosis. CONCLUSION ICA treatment mitigated chondrocyte ferroptosis and articular cartilage damage by enhancing the SLC7A11/GPX4 signaling, suggesting its potential as a therapeutic agent for OA interventions.
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Affiliation(s)
- Juan Xiao
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China; Department of Nephrology and Rheumatology, Guizhou Moutai Hospital, Renhuai 564500, China
| | - Chenggen Luo
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Anmao Li
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Fanglan Cai
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Yu Wang
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Xiaoli Pan
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Liu Xu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - Zihong Wang
- Morphology Laboratory, Zunyi Medical University, Zunyi 563000, China
| | - Zhouxiong Xing
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Limei Yu
- Key Laboratory of Cell Engineering in Guizhou Province, The Affiliated Hospital of Zunyi Medical University, Guizhou, Zunyi 563000, China.
| | - Yong Chen
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China.
| | - Mei Tian
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China.
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Mo X, Hu D, Yuan K, Luo J, Huang C, Xu M. Tetrandrine citrate suppresses lung adenocarcinoma growth via SLC7A11/GPX4-mediated ferroptosis. Discov Oncol 2023; 14:85. [PMID: 37266741 DOI: 10.1007/s12672-023-00691-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/11/2023] [Indexed: 06/03/2023] Open
Abstract
Ferroptosis is a mode of programmed cell death that plays a crucial role in tumor biology processes. Although tetrandrine citrate (TetC) has been demonstrated to exert anti-tumor effects, it is still unclear whether TetC inhibits lung adenocarcinoma (LUAD) progression by inducing ferroptosis. The study showcased the inhibitory effect of TetC on the viability and progression of tumor cells, including intracellular iron overload, accumulation of reactive oxygen species (ROS), over-expression of malondial-dehyde (MDA), and depletion of glutathione (GSH). Notably, TetC-induced cell death was clearly reversed by three different ferroptosis-related inhibitors. TetC also induced changes in the mitochondrial morphology of LUAD cells, similar to those observed in typical ferroptosis. Further analysis through Western blot (WB) and Immunofluorescence (IF) assays identified that TetC inhibited the expression and fluorescence intensity of both solute carrier family 7 (SLC7A11) and glutathione peroxidase-4 (GPX4). More importantly, over-expression of SLC7A11 could rescue the TetC-induced ferroptosis. Finally, in our vivo experiment, we discovered that TetC significantly slowed the growth rate of subcutaneous transplanted A549 cells, ultimately proving to be biosafe. In conclusion, our study first identified the mechanism by which TetC-induced ferroptosis in LUAD via SLC7A11/GPX4 signaling.
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Affiliation(s)
- Xiaocong Mo
- Department of Oncology, the First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510000, Guangdong, China
| | - Di Hu
- Department of Neurology and Stroke Centre, the First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510000, Guangdong, China
| | - Kaisheng Yuan
- Department of Metabolic and Bariatric Surgery, the First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510000, Guangdong, China
| | - Juyu Luo
- Department of Neurology and Stroke Centre, the First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510000, Guangdong, China
| | - Cheng Huang
- Department of Neurology and Stroke Centre, the First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510000, Guangdong, China
| | - Meng Xu
- Department of Oncology, the First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510000, Guangdong, China.
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Fu C, Wu Y, Liu S, Luo C, Lu Y, Liu M, Wang L, Zhang Y, Liu X. Rehmannioside A improves cognitive impairment and alleviates ferroptosis via activating PI3K/AKT/Nrf2 and SLC7A11/GPX4 signaling pathway after ischemia. J Ethnopharmacol 2022; 289:115021. [PMID: 35091012 DOI: 10.1016/j.jep.2022.115021] [Citation(s) in RCA: 77] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/07/2022] [Accepted: 01/17/2022] [Indexed: 05/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rehmannioside A is derived from Rehmannia glutinosa Libosch, which is widely used as an important ingredient in diverse traditional Chinese medicines to treat diseases caused by "kidney deficiency" such as cerebral arteriosclerosis, aging-related stroke and dementia in China. Recent studies have proved that Rehmannia glutinosa Libosch and Rehmannioside A can improve memory capability and recover nerve damage. AIM OF THE STUDY To investigate the effect of Rehmannioside A on cognitive impairment after ischemia in rats and SH-SY5Y cells, and further evaluate the anti-oxidative and anti-ferroptosis mechanisms. MATERIALS AND METHODS Differentially expressed proteins (DEPs) in patients after cerebral ischemic stroke were revealed by a RayBio protein array. Cognitive impairment model was established by middle cerebral artery occlusion and reperfusion (MCAO) 14 days in rats. Rehmannioside A was administered intraperitoneally injection at dose of 80 mg/kg. The SH-SY5Y cells were exposed to H2O2 for 24 h and treated with Rehmannioside A (80 μM) for 24 h. The neuroprotecion of Rehmannioside A were evaluated by infarct volume (TTC), neurological defects (Garcia score) and learning memory (Morris water maze test) in vivo, and cell viability (CCK-8 or LDH) in vitro. Superoxide dismutase (SOD), malondialdehyde (MDA) and myeloperoxidase (MPO) activity of rats, glutathione (GSH), oxidized glutathione (GSSG) and nicotinamide adenine dinucleotide phosphate (NADPH) of cells were detected by biochemical assay. Intracellular reactive oxygen species (ROS) were measured by DCFH-DA assay. Myeloperoxidase (MPO), PI3 kinase (PI3K), p-PI3K, Akt, p-Akt, heme oxygenase-1 (HO-1), nuclear factor-E2-related factor 2 (Nrf2), SLC7A11, glutathione peroxidase 4 (GPX4) of the cerebral cortex in rats or SH-SY5Y cells were examined by western blotting. RESULTS Compared with model group, the cognitive impairment and neurological deficits of Rehmannioside A group were significantly improved, and the cerebral infarction was reduced in MCAO rats. Moreover, the cell viability obviously increased and the H2O2-induced toxicity was reduced in Rehmannioside A group. Further research indicated that the expression of p-PI3K, p-Akt, nuclear Nrf2, HO-1 and SLC7A11 in Rehmannioside A group was significantly higher than model group. CONCLUSION Rehmannioside A has neuroprotection effect and improves cognitive impairment after cerebral ischemia by inhibiting ferroptosis and activating PI3K/AKT/Nrf2 and SLC7A11/GPX4 signaling pathway. These findings provide valuable insight into the pathogenesis and therapeutic target of ischemic stroke.
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Affiliation(s)
- Chen Fu
- Central Laboratory, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, 100078, China.
| | - Yifan Wu
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Shaojiao Liu
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Chaoqin Luo
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Yuqiao Lu
- Office of Academic Research, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, 100078, China.
| | - Menghan Liu
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Lingfeng Wang
- Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Yunling Zhang
- Central Laboratory, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, 100078, China; Department of Neurology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Xuemei Liu
- Central Laboratory, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, 100078, China.
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