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Ma Z, Liu T, Liu L, Pei Y, Wang T, Wang Z, Guan Y, Zhang X, Zhang Y, Chen X. Epidermal Neural Crest Stem Cell Conditioned Medium Enhances Spinal Cord Injury Recovery via PI3K/AKT-Mediated Neuronal Apoptosis Suppression. Neurochem Res 2024; 49:2854-2870. [PMID: 39023805 PMCID: PMC11365850 DOI: 10.1007/s11064-024-04207-8] [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: 09/23/2023] [Revised: 04/19/2024] [Accepted: 07/05/2024] [Indexed: 07/20/2024]
Abstract
This study aimed to assess the impact of conditioned medium from epidermal neural crest stem cells (EPI-NCSCs-CM) on functional recovery following spinal cord injury (SCI), while also exploring the involvement of the PI3K-AKT signaling pathway in regulating neuronal apoptosis. EPI-NCSCs were isolated from 10-day-old Sprague-Dawley rats and cultured for 48 h to obtain EPI-NCSC-CM. SHSY-5Y cells were subjected with H2O2 treatment to induce apoptosis. Cell viability and survival rates were evaluated using the CCK-8 assay and calcein-AM/PI staining. SCI contusion model was established in adult Sprague-Dawley rats to assess functional recovery, utilizing the Basso, Beattie and Bresnahan (BBB) scoring system, inclined test, and footprint observation. Neurological restoration after SCI was analyzed through electrophysiological recordings. Histological analysis included hematoxylin and eosin (H&E) staining and Nissl staining to evaluate tissue organization. Apoptosis and oxidative stress levels were assessed using TUNEL staining and ROS detection methods. Additionally, western blotting was performed to examine the expression of apoptotic markers and proteins related to the PI3K/AKT signaling pathway. EPI-NCSC-CM significantly facilitated functional and histological recovery in SCI rats by inhibiting neuronal apoptosis through modulation of the PI3K/AKT pathway. Administration of EPI-NCSCs-CM alleviated H2O2-induced neurotoxicity in SHSY-5Y cells in vitro. The use of LY294002, a PI3K inhibitor, underscored the crucial role of the PI3K/AKT signaling pathway in regulating neuronal apoptosis. This study contributes to the ongoing exploration of molecular pathways involved in spinal cord injury (SCI) repair, focusing on the therapeutic potential of EPI-NCSC-CM. The research findings indicate that EPI-NCSC-CM exerts a neuroprotective effect by suppressing neuronal apoptosis through activation of the PI3K/AKT pathway in SCI rats. These results highlight the promising role of EPI-NCSC-CM as a potential treatment strategy for SCI, emphasizing the significance of the PI3K/AKT pathway in mediating its beneficial effects.
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Affiliation(s)
- Ziqian Ma
- Department of Orthopedics Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, 8 Workers Stadium South Road, Chaoyang District, Beijing, China
| | - Tao Liu
- Department of Orthopedics Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Liang Liu
- Department of Orthopedics Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yilun Pei
- Department of Orthopedics Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Tianyi Wang
- Department of Orthopedics, 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, 067000, Hebei Province, P.R. China
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Yun Guan
- Department of Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
- Department of Neurological Surgery, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Xinwei Zhang
- Department of Orthopedics Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yan Zhang
- Department of Orthopedics Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
| | - Xueming Chen
- Department of Orthopedics Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
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Xu Q, Kong F, Zhao G, Jin J, Feng S, Li M. USP7 alleviates neuronal inflammation and apoptosis in spinal cord injury via deubiquitinating NRF1/KLF7 axis. Neurol Res 2024:1-10. [PMID: 39007840 DOI: 10.1080/01616412.2024.2376999] [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: 12/28/2023] [Accepted: 07/02/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND Ubiquitin-specific protease 7 (USP7) has been found to be associated with motor function recovery after spinal cord injury (SCI). Therefore, its role and mechanism in SCI process need further exploration. METHODS SCI rat models were established via performing laminectomy at the T9-T11 spinal vertebrae and cutting spinal cord tissues. SCI cell models were constructed by inducing PC12 cells with lipopolysaccharide (LPS). The protein levels of USP7, nuclear respiratory factor 1 (NRF1), Krüppel-like factor 7 (KLF7) and apoptosis-related markers were detected by western blot. Cell viability and apoptosis were tested by cell counting kit-8 assay and flow cytometry. The contents of inflammatory factors were examined using ELISA. The interaction between NRF1 and USP7 or KLF7 was analyzed by co-immunoprecipitation assay, chromatin immunoprecipitation assay and dual-luciferase reporter assay, respectively. RESULTS USP7 was downregulated in SCI rat models and LPS-induced PC12 cells. Overexpressed USP7 promoted viability, while repressed apoptosis and inflammation in LPS-induced PC12 cells. USP7 could stabilize NRF1 protein expression via deubiquitination, and NRF1 knockdown reversed the protective effect of USP7 against LPS-induced PC12 cell injury. NRF1 is bound to KLF7 promoter to enhance its transcription. NRF1 overexpression inhibited LPS-induced PC12 cell inflammation and apoptosis via increasing KLF7 expression. CONCLUSION USP7 alleviated inflammation and apoptosis in LPS-induced PC12 cells via NRF1/KLF7 axis, indicating that targeting of USP7/NRF1/KLF7 axis might be a promising treatment strategy for SCI.
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Affiliation(s)
- Qifei Xu
- Department of Orthopedics, The First People's Hospital of Pingdingshan, Pingdingshan, China
| | - Fanguo Kong
- Department of Orthopedics, Henan Provincial Orthopedic Hospital, Zhengzhou, China
| | - Guanghui Zhao
- Department of Orthopedics, The First People's Hospital of Pingdingshan, Pingdingshan, China
| | - Junwei Jin
- Department of Orthopedics, The First People's Hospital of Pingdingshan, Pingdingshan, China
| | - Shengkai Feng
- Department of Orthopedics, The First People's Hospital of Pingdingshan, Pingdingshan, China
| | - Ming Li
- Department of Orthopedics, The First People's Hospital of Pingdingshan, Pingdingshan, China
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Guan X, Wang Y, Yu W, Wei Y, Lu Y, Dai E, Dong X, Zhao B, Hu C, Yuan L, Luan X, Miao K, Chen B, Cheng X, Zhang W, Qin J. Blocking Ubiquitin-Specific Protease 7 Induces Ferroptosis in Gastric Cancer via Targeting Stearoyl-CoA Desaturase. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307899. [PMID: 38460164 PMCID: PMC11095140 DOI: 10.1002/advs.202307899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/21/2024] [Indexed: 03/11/2024]
Abstract
Gastric cancer (GC) presents a formidable global health challenge, and conventional therapies face efficacy limitations. Ubiquitin-specific protease 7 (USP7) plays pivotal roles in GC development, immune response, and chemo-resistance, making it a promising target. Various USP7 inhibitors have shown selectivity and efficacy in preclinical studies. However, the mechanistic role of USP7 has not been fully elucidated, and currently, no USP7 inhibitors have been approved for clinical use. In this study, DHPO is identified as a potent USP7 inhibitor for GC treatment through in silico screening. DHPO demonstrates significant anti-tumor activity in vitro, inhibiting cell viability and clonogenic ability, and preventing tumor migration and invasion. In vivo studies using orthotopic gastric tumor mouse models validate DHPO's efficacy in suppressing tumor growth and metastasis without significant toxicity. Mechanistically, DHPO inhibition triggers ferroptosis, evidenced by mitochondrial alterations, lipid Reactive Oxygen Species (ROS), Malondialdehyde (MDA) accumulation, and iron overload. Further investigations unveil USP7's regulation of Stearoyl-CoA Desaturase (SCD) through deubiquitination, linking USP7 inhibition to SCD degradation and ferroptosis induction. Overall, this study identifies USP7 as a key player in ferroptosis of GC, elucidates DHPO's inhibitory mechanisms, and highlights its potential for GC treatment by inducing ferroptosis through SCD regulation.
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Affiliation(s)
- Xiaoqing Guan
- Zhejiang Cancer HospitalHangzhou Institute of Medicine (HIM)Chinese Academy of SciencesHangzhouZhejiang310022China
- Key Laboratory of PreventionDiagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang ProvinceHangzhouZhejiang310022China
| | - Yichao Wang
- Zhejiang Cancer HospitalHangzhou Institute of Medicine (HIM)Chinese Academy of SciencesHangzhouZhejiang310022China
- College of Pharmaceutical SciencesZhejiang University of TechnologyHangzhouZhejiang310014China
| | - Wenkai Yu
- School of PharmacyZhejiang Chinese Medical UniversityHangzhouZhejiang310053China
| | - Yong Wei
- Zhejiang Cancer HospitalHangzhou Institute of Medicine (HIM)Chinese Academy of SciencesHangzhouZhejiang310022China
| | - Yang Lu
- Hangzhou Institute of Innovative MedicineInstitute of Drug Discovery and DesignCollege of Pharmaceutical SciencesZhejiang UniversityHangzhouZhejiang310058China
| | - Enyu Dai
- Department of Genomic MedicineThe University of Texas MD Anderson Cancer CenterHoustonTexas77030USA
| | - Xiaowu Dong
- Hangzhou Institute of Innovative MedicineInstitute of Drug Discovery and DesignCollege of Pharmaceutical SciencesZhejiang UniversityHangzhouZhejiang310058China
| | - Bing Zhao
- Zhejiang Cancer HospitalHangzhou Institute of Medicine (HIM)Chinese Academy of SciencesHangzhouZhejiang310022China
| | - Can Hu
- Zhejiang Cancer HospitalHangzhou Institute of Medicine (HIM)Chinese Academy of SciencesHangzhouZhejiang310022China
- Key Laboratory of PreventionDiagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang ProvinceHangzhouZhejiang310022China
| | - Li Yuan
- Zhejiang Cancer HospitalHangzhou Institute of Medicine (HIM)Chinese Academy of SciencesHangzhouZhejiang310022China
- Key Laboratory of PreventionDiagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang ProvinceHangzhouZhejiang310022China
| | - Xin Luan
- Institute of Interdisciplinary Integrative Medicine ResearchShanghai University of Traditional Chinese MedicineShanghai201203China
| | - Kai Miao
- MOE Frontier Science Centre for Precision OncologyUniversity of MacauMacau SAR999078China
| | - Bonan Chen
- Department of Anatomical and Cellular PathologyPrince of Wales HospitalThe Chinese University of Hong KongHong Kong999077China
| | - Xiang‐Dong Cheng
- Zhejiang Cancer HospitalHangzhou Institute of Medicine (HIM)Chinese Academy of SciencesHangzhouZhejiang310022China
- Key Laboratory of PreventionDiagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang ProvinceHangzhouZhejiang310022China
| | - Weidong Zhang
- Institute of Interdisciplinary Integrative Medicine ResearchShanghai University of Traditional Chinese MedicineShanghai201203China
- School of PharmacyNaval Medical UniversityShanghai200433China
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao‐di HerbsInstitute of Medicinal Plant DevelopmentChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100193China
| | - Jiang‐Jiang Qin
- Zhejiang Cancer HospitalHangzhou Institute of Medicine (HIM)Chinese Academy of SciencesHangzhouZhejiang310022China
- Key Laboratory of PreventionDiagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang ProvinceHangzhouZhejiang310022China
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Wang Y, Hu J, Wu S, Fleishman JS, Li Y, Xu Y, Zou W, Wang J, Feng Y, Chen J, Wang H. Targeting epigenetic and posttranslational modifications regulating ferroptosis for the treatment of diseases. Signal Transduct Target Ther 2023; 8:449. [PMID: 38072908 PMCID: PMC10711040 DOI: 10.1038/s41392-023-01720-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 09/16/2023] [Accepted: 11/18/2023] [Indexed: 12/18/2023] Open
Abstract
Ferroptosis, a unique modality of cell death with mechanistic and morphological differences from other cell death modes, plays a pivotal role in regulating tumorigenesis and offers a new opportunity for modulating anticancer drug resistance. Aberrant epigenetic modifications and posttranslational modifications (PTMs) promote anticancer drug resistance, cancer progression, and metastasis. Accumulating studies indicate that epigenetic modifications can transcriptionally and translationally determine cancer cell vulnerability to ferroptosis and that ferroptosis functions as a driver in nervous system diseases (NSDs), cardiovascular diseases (CVDs), liver diseases, lung diseases, and kidney diseases. In this review, we first summarize the core molecular mechanisms of ferroptosis. Then, the roles of epigenetic processes, including histone PTMs, DNA methylation, and noncoding RNA regulation and PTMs, such as phosphorylation, ubiquitination, SUMOylation, acetylation, methylation, and ADP-ribosylation, are concisely discussed. The roles of epigenetic modifications and PTMs in ferroptosis regulation in the genesis of diseases, including cancers, NSD, CVDs, liver diseases, lung diseases, and kidney diseases, as well as the application of epigenetic and PTM modulators in the therapy of these diseases, are then discussed in detail. Elucidating the mechanisms of ferroptosis regulation mediated by epigenetic modifications and PTMs in cancer and other diseases will facilitate the development of promising combination therapeutic regimens containing epigenetic or PTM-targeting agents and ferroptosis inducers that can be used to overcome chemotherapeutic resistance in cancer and could be used to prevent other diseases. In addition, these mechanisms highlight potential therapeutic approaches to overcome chemoresistance in cancer or halt the genesis of other diseases.
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Affiliation(s)
- Yumin Wang
- Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, 100049, PR China
| | - Jing Hu
- Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300060, PR China
| | - Shuang Wu
- Department of Neurology, Zhongnan Hospital of Wuhan University, Wuhan, 430000, PR China
| | - Joshua S Fleishman
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, 11439, USA
| | - Yulin Li
- Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, 100049, PR China
| | - Yinshi Xu
- Department of Outpatient, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, 100049, PR China
| | - Wailong Zou
- Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, 100049, PR China
| | - Jinhua Wang
- Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China.
| | - Yukuan Feng
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, PR China.
| | - Jichao Chen
- Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, 100049, PR China.
| | - Hongquan Wang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, PR China.
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Bejarano E, Whitcomb EA, Pfeiffer RL, Rose KL, Asensio MJ, Rodríguez-Navarro JA, Ponce-Mora A, Canto A, Almansa I, Schey KL, Jones BW, Taylor A, Rowan S. Unbalanced redox status network as an early pathological event in congenital cataracts. Redox Biol 2023; 66:102869. [PMID: 37677999 PMCID: PMC10495660 DOI: 10.1016/j.redox.2023.102869] [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: 06/21/2023] [Revised: 08/08/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023] Open
Abstract
The lens proteome undergoes dramatic composition changes during development and maturation. A defective developmental process leads to congenital cataracts that account for about 30% of cases of childhood blindness. Gene mutations are associated with approximately 50% of early-onset forms of lens opacity, with the remainder being of unknown etiology. To gain a better understanding of cataractogenesis, we utilized a transgenic mouse model expressing a mutant ubiquitin protein in the lens (K6W-Ub) that recapitulates most of the early pathological changes seen in human congenital cataracts. We performed mass spectrometry-based tandem-mass-tag quantitative proteomics in E15, P1, and P30 control or K6W-Ub lenses. Our analysis identified targets that are required for early normal differentiation steps and altered in cataractous lenses, particularly metabolic pathways involving glutathione and amino acids. Computational molecular phenotyping revealed that glutathione and taurine were spatially altered in the K6W-Ub cataractous lens. High-performance liquid chromatography revealed that both taurine and the ratio of reduced glutathione to oxidized glutathione, two indicators of redox status, were differentially compromised in lens biology. In sum, our research documents that dynamic proteome changes in a mouse model of congenital cataracts impact redox biology in lens. Our findings shed light on the molecular mechanisms associated with congenital cataracts and point out that unbalanced redox status due to reduced levels of taurine and glutathione, metabolites already linked to age-related cataract, could be a major underlying mechanism behind lens opacities that appear early in life.
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Affiliation(s)
- Eloy Bejarano
- JM-USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA; School of Health Sciences and Veterinary School, Universidad Cardenal Herrera-CEU, CEU Universities, Moncada, Valencia, Spain
| | - Elizabeth A Whitcomb
- JM-USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA
| | - Rebecca L Pfeiffer
- Moran Eye Center, The University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Kristie L Rose
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Maria José Asensio
- Servicio de Neurobiología, Departamento de Investigación, Hospital Ramón y Cajal, IRYCIS, Madrid, Spain
| | - José Antonio Rodríguez-Navarro
- Servicio de Neurobiología, Departamento de Investigación, Hospital Ramón y Cajal, IRYCIS, Madrid, Spain; Department of Cell Biology, Complutense University of Madrid, Madrid, Spain
| | - Alejandro Ponce-Mora
- School of Health Sciences and Veterinary School, Universidad Cardenal Herrera-CEU, CEU Universities, Moncada, Valencia, Spain
| | - Antolín Canto
- School of Health Sciences and Veterinary School, Universidad Cardenal Herrera-CEU, CEU Universities, Moncada, Valencia, Spain
| | - Inma Almansa
- School of Health Sciences and Veterinary School, Universidad Cardenal Herrera-CEU, CEU Universities, Moncada, Valencia, Spain
| | - Kevin L Schey
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Bryan W Jones
- Moran Eye Center, The University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Allen Taylor
- JM-USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA; Friedman School of Nutrition and Science Policy, Tufts University, Boston, MA, USA.
| | - Sheldon Rowan
- JM-USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA; Friedman School of Nutrition and Science Policy, Tufts University, Boston, MA, USA.
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