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Du Y, Jiang X, Zhang Y, Ying J, Yi Q. Epigenetic mechanism of SET7/9-mediated histone methylation modification in high glucose-induced ferroptosis in retinal pigment epithelial cells. J Bioenerg Biomembr 2024; 56:297-309. [PMID: 38602631 DOI: 10.1007/s10863-024-10016-z] [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: 12/26/2023] [Accepted: 03/19/2024] [Indexed: 04/12/2024]
Abstract
Ferroptosis of the retinal pigment epithelial (RPE) cells leads to retinal neuron injury and even visual loss. Our study aims to investigate the role of the SET domain with lysine methyltransferase 7/9 (SET7/9) in regulating high glucose (HG)-induced ferroptosis in RPE cells. The cell model was established by HG treatment. The levels of SET7/9 and Sirtuin 6 (SIRT6) were inhibited and Runt-related transcription factor 1 (RUNX1) was overexpressed through cell transfection, and then their levels in ARPE-19 cells were detected. Cell viability and apoptosis was detected. The levels of reactive oxygen species, malondialdehyde, glutathione, ferrous ion, glutathione peroxidase 4, and acyl-CoA synthetase long-chain family member 4 were detected. SET7/9 and trimethylation of histone H3 at lysine 4 (H3K4me3) levels in the RUNX1 promoter region and RUNX1 level in the SIRT6 promoter region were measured. The relationship between RUNX1 and SIRT6 was verified. SET7/9 and RUNX1 were highly expressed while SIRT6 was poorly expressed in HG-induced ARPE-19 cells. SET7/9 inhibition increased cell viability and inhibited cell apoptosis and ferroptosis. Mechanistically, SET7/9 increased H3K4me3 on the RUNX1 promoter to promote RUNX1, and RUNX1 repressed SIRT6 expression. Overexpression of RUNX1 or silencing SIRT6 partially reversed the inhibitory effect of SET7/9 silencing on HG-induced ferroptosis. In conclusion, SET7/9 promoted ferroptosis of RPE cells through the SIRT6/RUNX1 pathway.
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Affiliation(s)
- Yue Du
- Pharmacy Department of Ningbo Eye Hospital, Wenzhou Medical University, Ningbo, China
| | - Xue Jiang
- Ophthalmology Department of Ningbo Eye Hospital, Wenzhou Medical University, No. 599 Beimingcheng Road, 315042, Ningbo, Zhejiang Province, China
| | - Yanyan Zhang
- Ophthalmology Department of Ningbo Eye Hospital, Wenzhou Medical University, No. 599 Beimingcheng Road, 315042, Ningbo, Zhejiang Province, China
| | - Jianing Ying
- Ophthalmology Department of Ningbo Eye Hospital, Wenzhou Medical University, No. 599 Beimingcheng Road, 315042, Ningbo, Zhejiang Province, China
- Health Science Center, Ningbo University, Ningbo, China
| | - Quanyong Yi
- Ophthalmology Department of Ningbo Eye Hospital, Wenzhou Medical University, No. 599 Beimingcheng Road, 315042, Ningbo, Zhejiang Province, China.
- Health Science Center, Ningbo University, Ningbo, China.
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Tian B, Li X, Li W, Shi Z, He X, Wang S, Zhu X, Shi N, Li Y, Wan P, Zhu C. CRYAB suppresses ferroptosis and promotes osteogenic differentiation of human bone marrow stem cells via binding and stabilizing FTH1. Aging (Albany NY) 2024; 16:8965-8979. [PMID: 38787373 PMCID: PMC11164484 DOI: 10.18632/aging.205851] [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: 10/24/2023] [Accepted: 03/25/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Bone formation and homeostasis are greatly dependent on the osteogenic differentiation of human bone marrow stem cells (BMSCs). Therefore, revealing the mechanisms underlying osteogenic differentiation of BMSCs will provide new candidate therapeutic targets for osteoporosis. METHODS The osteogenic differentiation of BMSCs was measured by analyzing ALP activity and expression levels of osteogenic markers. Cellular Fe and ROS levels and cell viability were applied to evaluate the ferroptosis of BMSCs. qRT-PCR, Western blotting, and co-immunoprecipitation assays were harnessed to study the molecular mechanism. RESULTS The mRNA level of CRYAB was decreased in the plasma of osteoporosis patients. Overexpression of CRYAB increased the expression of osteogenic markers including OCN, OPN, RUNX2, and COLI, and also augmented the ALP activity in BMSCs, on the contrary, knockdown of CRYAB had opposite effects. IP-MS technology identified CRYAB-interacted proteins and further found that CRYAB interacted with ferritin heavy chain 1 (FTH1) and maintained the stability of FTH1 via the proteasome mechanism. Mechanically, we unraveled that CRYAB regulated FTH1 protein stability in a lactylation-dependent manner. Knockdown of FTH1 suppressed the osteogenic differentiation of BMSCs, and increased the cellular Fe and ROS levels, and eventually promoted ferroptosis. Rescue experiments revealed that CRYAB suppressed ferroptosis and promoted osteogenic differentiation of BMSCs via regulating FTH1. The mRNA level of FTH1 was decreased in the plasma of osteoporosis patients. CONCLUSIONS Downregulation of CRYAB boosted FTH1 degradation and increased cellular Fe and ROS levels, and finally improved the ferroptosis and lessened the osteogenic differentiation of BMSCs.
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Affiliation(s)
- Bo Tian
- Scientific Research Section, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Xiaolu Li
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Weiyuan Li
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Zhizhou Shi
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Xu He
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Shengyu Wang
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Xun Zhu
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Na Shi
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Yan Li
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Ping Wan
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Chongtao Zhu
- Laser Medical Center, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
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Yuan T, Liu H, Abudoukadier M, Yang Z, Zhou Z, Cui Y. YTHDF2-Mediated m6A methylation inhibition by miR27a as a protective mechanism against hormonal osteonecrosis in BMSCs. BMC Musculoskelet Disord 2024; 25:359. [PMID: 38711079 PMCID: PMC11071322 DOI: 10.1186/s12891-024-07481-3] [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: 02/21/2024] [Accepted: 04/28/2024] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND With the increasing incidence of steroid-induced necrosis of the femoral head (SNFH), numerous scholars have investigated its pathogenesis. Current evidence suggests that the imbalance between lipogenesis and osteoblast differentiation in bone marrow mesenchymal stem cells (BMSCs) is a key pathological feature of SNFH. MicroRNAs (miRNAs) have strong gene regulatory effects and can influence the direction of cell differentiation. N6-methyladenosine (m6A) is a prevalent epigenetic modification involved in diverse pathophysiological processes. However, knowledge of how miRNAs regulate m6A-related factors that affect BMSC differentiation is limited. OBJECTIVE We aimed to investigate the role of miR27a in regulating the expression of YTHDF2 in BMSCs. METHODS We compared miR27a, YTHDF2, and total m6A mRNA levels in SNFH-affected and control BMSCs. CCK-8 and TUNEL assays were used to assess BMSC proliferation and apoptosis. Western blotting and qRT‒PCR were used to measure the expression of osteogenic (ALP, RUNX2, and OCN) and lipogenic (PPARγ and C/EBPα) markers. Alizarin Red and Oil Red O staining were used to quantify osteogenic and lipogenic differentiation, respectively. miR27a was knocked down or overexpressed to evaluate its impact on BMSC differentiation and its relationship with YTHDF2. Bioinformatics analyses identified YTHDF2 as a differentially expressed gene in SNFH (ROC analysis) and revealed potential signaling pathways through GSEA. The effects of YTHDF2 silencing on the lipogenic and osteogenic functions of BMSCs were assessed. RESULTS miR27a downregulation and YTHDF2 upregulation were observed in the SNFH BMSCs. miR27a knockdown/overexpression modulated YTHDF2 expression, impacting BMSC differentiation. miR27a silencing decreased m6A methylation and promoted osteogenic differentiation, while YTHDF2 silencing exerted similar effects. GSEA suggested potential signaling pathways associated with YTHDF2 in SNFH. CONCLUSION miR27a regulates BMSC differentiation through YTHDF2, affecting m6A methylation and promoting osteogenesis. This finding suggests a potential therapeutic target for SNFH.
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Affiliation(s)
- Tianyi Yuan
- The Fifth Clinical Medical College of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, 830011, China
| | - Hongjiang Liu
- The Fifth Clinical Medical College of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, 830011, China
| | - Maimaitiyibubaji Abudoukadier
- The Fifth Clinical Medical College of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, 830011, China
| | - Zengqiang Yang
- The Fifth Clinical Medical College of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, 830011, China
| | - Zhiheng Zhou
- The Fifth Clinical Medical College of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, 830011, China
| | - Yong Cui
- Department of Orthopedic Center, The Fifth Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, 830011, China.
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Cui H, Wang Y, Ma J, Zhou L, Li G, Li Y, Sun Y, Shen J, Ma T, Wang Q, Feng X, Dong B, Yang P, Li Y, Ma X. Advances in exosome modulation of ferroptosis for the treatment of orthopedic diseases. Pathol Res Pract 2024; 257:155312. [PMID: 38663177 DOI: 10.1016/j.prp.2024.155312] [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: 03/09/2024] [Revised: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 05/12/2024]
Abstract
Current treatments for orthopaedic illnesses frequently result in poor prognosis, treatment failure, numerous relapses, and other unpleasant outcomes that have a significant impact on patients' quality of life. Cell-free therapy has emerged as one of the most promising options in recent decades for improving the status quo. As a result, using exosomes produced from various cells to modulate ferroptosis has been proposed as a therapeutic method for the condition. Exosomes are extracellular vesicles that secrete various bioactive chemicals that influence disease treatment and play a role in the genesis and progression of orthopaedic illnesses. Ferroptosis is a recently defined kind of controlled cell death typified by large iron ion buildup and lipid peroxidation. An increasing number of studies indicate that ferroptosis plays a significant role in orthopaedic illnesses. Exosomes, as intercellular information transfer channels, have been found to play a significant role in the regulation of ferroptosis processes. Furthermore, accumulating research suggests that exosomes can influence the course of many diseases by regulating ferroptosis in injured cells. In order to better understand the processes by which exosomes govern ferroptosis in the therapy of orthopaedic illnesses. This review discusses the biogenesis, secretion, and uptake of exosomes, as well as the mechanisms of ferroptosis and exosomes in the therapy of orthopaedic illnesses. It focuses on recent research advances and exosome mechanisms in regulating iron death for the therapy of orthopaedic illnesses. The present state of review conducted both domestically and internationally is elucidated and anticipated as a viable avenue for future therapy in the field of orthopaedics.
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Affiliation(s)
- Hongwei Cui
- Tianjin Medical University Orthopedic Clinical College, Tianjin 300050, China; Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yan Wang
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Jianxiong Ma
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China.
| | - Liyun Zhou
- Tianjin Medical University Orthopedic Clinical College, Tianjin 300050, China; Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Guang Li
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yiyang Li
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yadi Sun
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Jiahui Shen
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Tiancheng Ma
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Qiyu Wang
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Xiaotian Feng
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Benchao Dong
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Peichuan Yang
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yan Li
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Xinlong Ma
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
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Shi J, Chen L, Wang X, Ma X. TRIM21 silencing inhibits the apoptosis and expedites the osteogenic differentiation of dexamethasone‑induced MC3T3‑E1 cells by activating the Keap1/Nrf2 pathway. Exp Ther Med 2024; 27:213. [PMID: 38590560 PMCID: PMC11000457 DOI: 10.3892/etm.2024.12502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/13/2024] [Indexed: 04/10/2024] Open
Abstract
Steroid-induced osteonecrosis of the femoral head (ONFH) is a serious complication caused by long-term or excessive use of glucocorticoids. The present study aimed to ascertain the effects of tripartite motif-containing protein 21 (TRIM21) on the process of steroid-induced ONFH and its hidden action mechanism. TRIM21 expression in dexamethasone (Dex)-treated mouse MC3T3-E1 preosteoblast cells was examined using reverse transcription-quantitative PCR and western blotting. The Cell Counting Kit-8 (CCK-8) method and lactate dehydrogenase release assay were used to respectively measure cell viability and injury. Flow cytometry analysis was used to assay cell apoptosis. Caspase 3 activity was evaluated using a specific assay, while alkaline phosphatase and Alizarin red S staining were used to evaluate osteogenesis. 2,7-dichloro-dihydrofluorescein diacetate fluorescence probe was used to estimate reactive oxygen species generation. Specific assay kits were used to appraise oxidative stress levels. In addition, the expression of apoptosis-, osteogenic differentiation- and Kelch-like ECH-associated protein 1 (Keap1)/nuclear factor erythroid 2-related factor 2 (Nrf2) signaling-associated proteins was assessed using western blotting. In Nrf2 inhibitor (ML385)-pretreated MC3T3-E1 cells exposed to Dex, cell apoptosis, osteogenesis and oxidative stress were detected again as aforementioned. Results revealed that TRIM21 expression was raised in Dex-induced MC3T3-E1 cells and TRIM21 deletion improved the viability and osteogenic differentiation, whereas it hampered the oxidative stress and apoptosis in MC3T3-E1 cells with Dex induction. In addition, silencing of TRIM21 activated Keap1/Nrf2 signaling. Moreover, ML385 partially abrogated the effects of TRIM21 depletion on the oxidative stress, apoptosis and osteogenic differentiation in MC3T3-E1 cells exposed to Dex. In conclusion, TRIM21 silencing might activate Keap1/Nrf2 signaling to protect against steroid-induced ONFH.
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Affiliation(s)
- Jiaqi Shi
- Department of Orthopedics, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, P.R. China
| | - Li Chen
- Department of Orthopedics, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, P.R. China
| | - Xu Wang
- Department of Orthopedics, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, P.R. China
| | - Xin Ma
- Department of Orthopedics, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, P.R. China
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Zhao Q, Dong J, Wang S, Wei B. Serum glutathione peroxidase 4 as a novel biomarker for nontraumatic osteonecrosis of the femoral head: A retrospective case-control study. Medicine (Baltimore) 2023; 102:e36202. [PMID: 38115372 PMCID: PMC10727552 DOI: 10.1097/md.0000000000036202] [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: 07/26/2023] [Revised: 10/18/2023] [Accepted: 10/27/2023] [Indexed: 12/21/2023] Open
Abstract
There are no serum biomarkers available in nontraumatic osteonecrosis of the femoral head in clinical practice. This study aimed to evaluate the clinical value of serum glutathione peroxidase 4 in nontraumatic osteonecrosis of the femoral head. This retrospective study analyzed serum glutathione peroxidase 4 levels and clinical data of 80 patients with nontraumatic osteonecrosis of the femoral head and 80 healthy controls between August 2021 and May 2022. Serum glutathione peroxidase 4 levels were analyzed using an enzyme-linked immunosorbent assay. The Association Research Circulation Osseous classification system determined disease progression. Clinical severity was assessed by Harris hip score and visual analogue scale. Correlations between serum glutathione peroxidase 4 and disease progression as well as clinical severity were evaluated statistically. The diagnostic accuracy of serum glutathione peroxidase 4 in nontraumatic osteonecrosis of the femoral head was determined using receiver operating characteristic analysis. The baseline characteristics of participants between 2 groups were comparable. Patients with nontraumatic osteonecrosis of the femoral head displayed a decreased glutathione peroxidase 4 level compared with healthy controls (11.87 ± 2.76 μU/mL vs 16.54 ± 4.89 μU/mL, P < .01). The levels of glutathione peroxidase 4 were inversely correlated with Association Research Circulation Osseous stage (P < .01) and visual analogue scale scores (P < .01), and positively correlated with Harris score (P < .01). Receiver operating characteristic analyses showed that area under curves of glutathione peroxidase 4 was 0.808 (95% CI 0.721-0.858) and 0.847 (95% CI 0.743-0.951) with regard to diagnosis and collapse prediction in nontraumatic osteonecrosis of the femoral head, respectively. Serum glutathione peroxidase 4 could serve as a novel biomarker for diagnosing nontraumatic osteonecrosis of the femoral head and predicting collapse of the femoral head.
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Affiliation(s)
- Qiang Zhao
- Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Orthopedics, Linyi People’s Hospital, Linyi, China
| | - Jianhong Dong
- Department of Laboratory Medicine, Qingdao Women and Children’s Hospital, Qingdao, China
| | - Shiying Wang
- Department of Orthopedics, Linyi People’s Hospital, Linyi, China
| | - Biaofang Wei
- Department of Orthopedics, Linyi People’s Hospital, Linyi, China
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Cao N, Wang Z, Huang C, Chen B, Zhao P, Xu Y, Tian Y. Cmpk2 regulates mitochondrial function in glucocorticoid-induced osteoblast senescence and affects glucocorticoid-inhibited osteoblast differentiation. Arch Gerontol Geriatr 2023; 114:105080. [PMID: 37269696 DOI: 10.1016/j.archger.2023.105080] [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: 04/23/2023] [Revised: 05/21/2023] [Accepted: 05/24/2023] [Indexed: 06/05/2023]
Abstract
Mitochondrial dysfunction plays a crucial role in the development of glucocorticoid-induced osteoporosis (GIO). Cytidine monophosphate kinase 2 (Cmpk2), an essential mitochondria-associated gene, promotes the production of free mitochondrial DNA, which leads to the formation of inflammasome-mediated inflammatory factors. However, the specific role of Cmpk2 in GIO remains unclear. In this study, we report that glucocorticoids induce cellular senescence within the bone, particularly in bone marrow mesenchymal stem cells and preosteoblasts. We discovered that glucocorticoids cause mitochondrial dysfunction in preosteoblasts, increasing cellular senescence. Moreover, we observed elevated expression of Cmpk2 in preosteoblasts following glucocorticoid exposure. Inhibiting Cmpk2 expression alleviates glucocorticoid-induced cellular senescence and promotes osteogenic differentiation by improving mitochondrial function. Our study uncovers new mechanisms underlying glucocorticoid-induced senescence in stem cells and preosteoblasts, highlighting the potential of inhibiting the mitochondrial gene Cmpk2 to reduce senescence and enhance osteogenic differentiation. This finding offers a potential therapeutic approach for the treatment of GIO.
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Affiliation(s)
- Nianping Cao
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zhihang Wang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Chongjun Huang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bobo Chen
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Pengyu Zhao
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ying Xu
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ye Tian
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.
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Cao Y, Peng T, Ai C, Li Z, Lei X, Li G, Li T, Wang X, Cai S. Inhibition of SIRT6 aggravates p53-mediated ferroptosis in acute lung injury in mice. Heliyon 2023; 9:e22272. [PMID: 38034611 PMCID: PMC10685376 DOI: 10.1016/j.heliyon.2023.e22272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/04/2023] [Accepted: 11/08/2023] [Indexed: 12/02/2023] Open
Abstract
Although studies have shown that protein 53 (p53)-mediated ferroptosis is involved in acute lung injury (ALI), the mechanism of its regulation remains unclear. The protective effects of Sirtuin 6 (SIRT6), a histone deacetylase, have been demonstrated in multiple diseases; however, further studies are needed to elucidate the role of SIRT6 in ALI. In the present study, we hypothesize that SIRT6 protects against lipopolysaccharide (LPS)-induced ALI by regulating p53-mediated ferroptosis. We observed that the inhibition of ferroptosis prevented LPS-induced ALI. The knockout of p53 blocked LPS-induced ferroptosis and ALI, suggesting that p53 facilitated ALI by promoting ferroptosis. In addition, the inhibition of SIRT6 aggravated LPS-induced ferroptosis and ALI, while the depression of ferroptosis blocked the exacerbation of lung injury induced by SIRT6 inhibition. The results suggest that SIRT6 protects against ALI by regulating ferroptosis. Furthermore, the inhibition of SIRT6 reinforced the p53 acetylation and the deletion of p53 rescued the exacerbation of ferroptosis induced by SIRT6 inhibition. The findings indicate that SIRT6 regulates the acetylation of p53 and prevents p53-mediated ferroptosis. In conclusion, our results indicate that SIRT6 protects against LPS-induced ALI by regulating p53-mediated ferroptosis, thereby demonstrating that SIRT6 holds great promise as a therapeutic target for ALI.
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Affiliation(s)
- Yuanyuan Cao
- Department of Critical Care Medicine, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, PR China
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, The First Affiliated Hospital of Xiangnan University, Xiangnan University, Chenzhou, 423000, PR China
| | - Tian Peng
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, The First Affiliated Hospital of Xiangnan University, Xiangnan University, Chenzhou, 423000, PR China
| | - Chenmu Ai
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, The First Affiliated Hospital of Xiangnan University, Xiangnan University, Chenzhou, 423000, PR China
| | - Zhiwang Li
- Department of Anesthesiology, The First People's Hospital of Chenzhou, The First Affiliated Hospital of Xiangnan University, Xiangnan University, Chenzhou, 423000, PR China
| | - Xiaobao Lei
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, The First Affiliated Hospital of Xiangnan University, Xiangnan University, Chenzhou, 423000, PR China
| | - Guicheng Li
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, The First Affiliated Hospital of Xiangnan University, Xiangnan University, Chenzhou, 423000, PR China
| | - Tao Li
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, The First Affiliated Hospital of Xiangnan University, Xiangnan University, Chenzhou, 423000, PR China
| | - Xiang Wang
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, The First Affiliated Hospital of Xiangnan University, Xiangnan University, Chenzhou, 423000, PR China
| | - Shumin Cai
- Department of Critical Care Medicine, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, PR China
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Lu H, Fan Y, Yan Q, Chen Z, Wei Z, Liu Y, Zhang J, Huang Z, Fang H, Zhou C, Chen Z. Identification and validation of ferroptosis-related biomarkers in steroid-induced osteonecrosis of the femoral head. Int Immunopharmacol 2023; 124:110906. [PMID: 37690237 DOI: 10.1016/j.intimp.2023.110906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/24/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023]
Abstract
OBJECTIVES Treatment of steroid-induced osteonecrosis of the femoral head (SIONFH) is challenging. Due to the limited understanding of its molecular mechanisms, investigating the potential mechanisms of ferroptosis will shed light on SIONFH and provide directions for treating this disease. METHODS The GSE123568 dataset was utilized to apply various bioinformatics methodologies to identify ferroptosis-related hub genes (FRHGs). Subsequently, the importance of these genes and the reliability of the results were confirmed using protein data-independent acquisition (DIA) and cell experiments. Finally, we assessed the correlation between FRHG expression and immune cell infiltration. RESULTS Thirty-one hub genes were identified and validated by constructing a protein-protein interaction network and subsequent screening using experimentally determined interactions. These 31 hub genes were enriched in immunity, the AMPK signaling pathway, and the Toll-like receptor signaling pathway. Next, we identified a diagnostic marker comprising two ferroptosis-related genes, NCF2 and SLC2A1. The differential expression of these two genes in healthy and necrotic regions was confirmed by protein DIA analysis. Cell experiments verified the link between FRHGs and ferroptosis and preliminarily explored the potential mechanism of the antioxidant vitexin in promoting osteogenic differentiation in cells. The diagnostic efficiency of these two markers was confirmed by receiver operating characteristic curve (ROC) curves, yielding an area under the curve of 1.0. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) indicated enrichment of FRHGs in the superoxide anion and HIF-1 signaling pathways. A significant correlation was observed between FRHGs and various immune cell populations. CONCLUSION NCF2 and SLC2A1 are promising ferroptosis-related diagnostic biomarkers of SIONFH. Concurrently, we embarked on a preliminary investigation to elucidate the potential mechanism underlying the promotion of osteogenic differentiation by the antioxidant vitexin. Moreover, these biomarkers are associated with distinct immune cell populations.
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Affiliation(s)
- Hongduo Lu
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Yinuo Fan
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China; The Third Clinical Medical College, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Qian Yan
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Zhiwen Chen
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Zhiming Wei
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Yuhao Liu
- The Department of Orthopedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Jiahao Zhang
- The First Clinical Medical College, Guangzhou University of Chinese Medicine, 12 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Zeqing Huang
- The Department of Orthopedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Hanjun Fang
- The Department of Orthopedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Chi Zhou
- The Department of Orthopedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
| | - Zhenqiu Chen
- The Department of Orthopedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 16 Jichang Road, Baiyun District, Guangzhou 510405, Guangdong Province, China.
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Li W, Li W, Zhang W, Wang H, Yu L, Yang P, Qin Y, Gan M, Yang X, Huang L, Hao Y, Geng D. Exogenous melatonin ameliorates steroid-induced osteonecrosis of the femoral head by modulating ferroptosis through GDF15-mediated signaling. Stem Cell Res Ther 2023; 14:171. [PMID: 37400902 DOI: 10.1186/s13287-023-03371-y] [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: 11/03/2022] [Accepted: 05/04/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND Ferroptosis is an iron-related form of programmed cell death. Accumulating evidence has identified the pathogenic role of ferroptosis in multiple orthopedic disorders. However, the relationship between ferroptosis and SONFH is still unclear. In addition, despite being a common disease in orthopedics, there is still no effective treatment for SONFH. Therefore, clarifying the pathogenic mechanism of SONFH and investigating pharmacologic inhibitors from approved clinical drugs for SONFH is an effective strategy for clinical translation. Melatonin (MT), an endocrine hormone that has become a popular dietary supplement because of its excellent antioxidation, was supplemented from an external source to treat glucocorticoid-induced damage in this study. METHODS Methylprednisolone, a commonly used glucocorticoid in the clinic, was selected to simulate glucocorticoid-induced injury in the current study. Ferroptosis was observed through the detection of ferroptosis-associated genes, lipid peroxidation and mitochondrial function. Bioinformatics analysis was performed to explore the mechanism of SONFH. In addition, a melatonin receptor antagonist and shGDF15 were applied to block the therapeutic effect of MT to further confirm the mechanism. Finally, cell experiments and the SONFH rat model were used to detect the therapeutic effects of MT. RESULTS MT alleviated bone loss in SONFH rats by maintaining BMSC activity through suppression of ferroptosis. The results are further verified by the melatonin MT2 receptor antagonist that can block the therapeutic effects of MT. In addition, bioinformatic analysis and subsequent experiments confirmed that growth differentiation factor 15 (GDF15), a stress response cytokine, was downregulated in the process of SONFH. On the contrary, MT treatment increased the expression of GDF15 in bone marrow mesenchymal stem cells. Lastly, rescue experiments performed with shGDF15 confirmed that GDF15 plays a key role in the therapeutic effects of melatonin. CONCLUSIONS We proposed that MT attenuated SONFH by inhibiting ferroptosis through the regulation of GDF15, and supplementation with exogenous MT might be a promising method for the treatment of SONFH.
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Affiliation(s)
- Wenming Li
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, 215006, China
| | - Wenhao Li
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, 215006, China
| | - Wei Zhang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, 215006, China
| | - Hongzhi Wang
- Department of Orthopedics, Taizhou People's Hospital, Taizhou, 225300, China
| | - Lei Yu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, 215006, China
| | - Peng Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, 215006, China
| | - Yi Qin
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, 215006, China
| | - Minfeng Gan
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, 215006, China
| | - Xing Yang
- Orthopedics and Sports Medicine Center, The Affiliated Suzhou Hospital of Nanjing Medical University, 242 Guangji Road, Suzhou, 215006, China
| | - Lixin Huang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, 215006, China
| | - Yuefeng Hao
- Orthopedics and Sports Medicine Center, The Affiliated Suzhou Hospital of Nanjing Medical University, 242 Guangji Road, Suzhou, 215006, China.
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, 215006, China.
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Zeng J, Guo J, Huang S, Cheng Y, Luo F, Xu X, Chen R, Ma G, Wang Y. The roles of sirtuins in ferroptosis. Front Physiol 2023; 14:1131201. [PMID: 37153222 PMCID: PMC10157232 DOI: 10.3389/fphys.2023.1131201] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 04/10/2023] [Indexed: 05/09/2023] Open
Abstract
Ferroptosis represents a novel non-apoptotic form of regulated cell death that is driven by iron-dependent lipid peroxidation and plays vital roles in various diseases including cardiovascular diseases, neurodegenerative disorders and cancers. Plenty of iron metabolism-related proteins, regulators of lipid peroxidation, and oxidative stress-related molecules are engaged in ferroptosis and can regulate this complex biological process. Sirtuins have broad functional significance and are targets of many drugs in the clinic. Recently, a growing number of studies have revealed that sirtuins can participate in the occurrence of ferroptosis by affecting many aspects such as redox balance, iron metabolism, and lipid metabolism. This article reviewed the studies on the roles of sirtuins in ferroptosis and the related molecular mechanisms, highlighting valuable targets for the prevention and treatment of ferroptosis-associated diseases.
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Affiliation(s)
- Jieqing Zeng
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
| | - Junhao Guo
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
| | - Si Huang
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
| | - Yisen Cheng
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
| | - Fei Luo
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
| | - Xusan Xu
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
| | - Riling Chen
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
| | - Guoda Ma
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
- *Correspondence: Guoda Ma, ; Yajun Wang,
| | - Yajun Wang
- Institute of Respiratory, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
- *Correspondence: Guoda Ma, ; Yajun Wang,
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