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Guo S, Tang Q, Gao X, Hu L, Hu K, Zhang H, Zhang Q, Lai Y, Liu Y, Wang Z, Chang S, Zhang Y, Hu H, An D, Peng Y, Cai H, Shi J. EZH2 inhibition induces senescence via ERK1/2 signaling pathway in multiple myeloma. Acta Biochim Biophys Sin (Shanghai) 2024; 56:1055-1064. [PMID: 38804044 PMCID: PMC11322866 DOI: 10.3724/abbs.2024077] [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: 11/29/2023] [Accepted: 02/04/2024] [Indexed: 05/29/2024] Open
Abstract
Epigenetic modifications play an important role in cellular senescence, and enhancer of zeste homolog 2 (EZH2) is a key methyltransferase involved in epigenetic remodeling in multiple myeloma (MM) cells. We have previously demonstrated that GSK126, a specific EZH2 inhibitor, exhibits anti-MM therapeutic efficacy and safety in vivo and in vitro; however, its specific mechanism remains unclear. This study shows that GSK126 induces cellular senescence in MM, which is characterized by the accumulation of senescence-associated heterochromatin foci (SAHF) and p21, and increased senescence-associated β galactosidase activity. Furthermore, EZH2 is inhibited in ribonucleotide reductase regulatory subunit M2 (RRM2)-overexpressing OCI-MY5 and RPMI-8226 cells. RRM2 overexpression inhibits the methyltransferase function of EZH2 and promotes its degradation through the ubiquitin-proteasome pathway, thereby inducing cellular senescence. In this senescence model, Lamin B1, a key component of the nuclear envelope and a marker of senescence, does not decrease but instead undergoes aberrant accumulation. Meanwhile, phosphorylation of extracellular signal-regulated protein kinase (ERK1/2) is significantly increased. The inhibition of ERK1/2 phosphorylation in turn partially restores Lamin B1 level and alleviates senescence. These findings suggest that EZH2 inhibition increases Lamin B1 level and induces senescence by promoting ERK1/2 phosphorylation. These data indicate that EZH2 plays an important role in MM cellular senescence and provide insights into the relationships among Lamin B1, p-ERK1/2, and cellular senescence.
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Affiliation(s)
- Shushan Guo
- Shanghai Clinical CollegeAnhui Medical UniversityShanghai200072China
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
- The Fifth Clinical Medical College of Anhui Medical UniversityHefei230022China
| | - Qiongwei Tang
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Xuejie Gao
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Liangning Hu
- Department of HematologySir Run Run Shaw HospitalZhejiang UniversityHangzhou310016China
| | - Ke Hu
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Hui Zhang
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Qikai Zhang
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Yue Lai
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Yujie Liu
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Zhuning Wang
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Shuaikang Chang
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Yifei Zhang
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Huifang Hu
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Dong An
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Yu Peng
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Haiyan Cai
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
| | - Jumei Shi
- Shanghai Clinical CollegeAnhui Medical UniversityShanghai200072China
- Department of HematologyShanghai East HospitalTongji University School of MedicineShanghai200120China
- The Fifth Clinical Medical College of Anhui Medical UniversityHefei230022China
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2
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Jin X, Min Q, Wang D, Wang Y, Li G, Wang Z, Guo Y, Zhou Y. FV-429 induces apoptosis by regulating nuclear translocation of PKM2 in pancreatic cancer cells. Heliyon 2024; 10:e29515. [PMID: 38638982 PMCID: PMC11024618 DOI: 10.1016/j.heliyon.2024.e29515] [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: 11/28/2023] [Revised: 04/09/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024] Open
Abstract
Of all malignancies, pancreatic ductal adenocarcinoma (PDAC), constituting 90% of pancreatic cancers, has the worst prognosis. Glycolysis is overactive in PDAC patients and is associated with poor prognosis. Drugs that inhibit glycolysis as well as induce cell death need to be identified. However, glycolysis inhibitors often fail to induce cell death. We here found that FV-429, a derivative of the natural flavonoid wogonin, can induce mitochondrial apoptosis and inhibit glycolysis in PDAC in vivo and in vitro. In vitro, FV-429 inhibited intracellular ATP content, glucose uptake, and lactate generation, consequently leading to mitochondrial dysfunction and apoptosis in PDAC cells. Furthermore, it decreased the expression of PKM2 (a specific form of pyruvate kinase) through the ERK signaling pathway and enhanced PKM2 nuclear translocation. TEPP-46, the activator of PKM2, reversed FV-429-induced glycolysis inhibition and mitochondrial apoptosis in the PDAC cells. In addition, FV-429 exhibited significant tumor suppressor activity and high safety in BxPC-3 cell xenotransplantation models. These results thus demonstrated that FV-429 decreases PKM2 expression through the ERK signaling pathway and enhances PKM2 nuclear translocation, thereby resulting in glycolysis inhibition and mitochondrial apoptosis in PDAC in vitro and in vivo, which makes FV-429 a promising candidate for pancreatic cancer treatment.
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Affiliation(s)
- Xifan Jin
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
| | - Qi Min
- Nanjing University of Chinese Medicine, China
- Department of Oncology, Huai'an Second People's Hospital, The Affiliated Huai'an Hospital of Xuzhou Medical University, China
| | - Dechao Wang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
| | - Yi Wang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
| | - Guangming Li
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
| | - Zhiying Wang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
| | - Yongjian Guo
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
| | - Yuxin Zhou
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
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3
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Yang Y, Ren J, Zhang J, Shi H, Wang J, Yan Y. FTO ameliorates doxorubicin-induced cardiotoxicity by inhibiting ferroptosis via P53-P21/Nrf2 activation in a HuR-dependent m6A manner. Redox Biol 2024; 70:103067. [PMID: 38316068 PMCID: PMC10862061 DOI: 10.1016/j.redox.2024.103067] [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: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/07/2024] Open
Abstract
Doxorubicin (DOX)-induced cardiotoxicity seriously limits its clinical applicability, and no therapeutic interventions are available. Ferroptosis, an iron-dependent regulated cell death characterised by lipid peroxidation, plays a pivotal role in DOX-induced cardiotoxicity. N6-methyladenosine (m6A) methylation is the most frequent type of RNA modification and involved in DOX-induced ferroptosis, however, its underlying mechanism remains unclear. P21 was recently found to inhibit ferroptosis by interacting with Nrf2 and is regulated in a P53-dependent or independent manner, such as through m6A modification. In the present study, we investigated the mechanism underlying m6A modification in DOX-induced ferroptosis by focusing on P21. Our results show that fat mass and obesity-associated protein (FTO) down-regulation was associated with DOX-induced cardiotoxicity. FTO over-expression significantly improved cardiac function and cell viability in DOX-treated mouse hearts and H9C2 cells. FTO over-expression significantly inhibited DOX-induced ferroptosis, and the Fer-1 inhibition of ferroptosis significantly reduced DOX-induced cardiotoxicity. P21 was significantly upregulated by FTO and activated Nrf2, playing a crucial role in the anti-ferroptotic effect. FTO upregulated P21/Nrf2 in a P53-dependent manner by mediating the demethylation of P53 or in a P53-independent manner by mediating P21/Nrf2 directly. Human antigen R (HuR) is crucial for FTO-mediated regulation of ferroptosis and P53-P21/Nrf2. Notably, we also found that P21 inhibition in turn inhibited HuR and P53 expression, while HuR inhibition further inhibited FTO expression. RNA immunoprecipitation assay showed that HuR binds to the transcripts of FTO and itself. Collectively, FTO inhibited DOX-induced ferroptosis via P21/Nrf2 activation by mediating the m6A demethylation of P53 or P21/Nrf2 in a HuR-dependent manner and constituted a positive feedback loop with HuR and P53-P21. Our findings provide novel insight into key functional mechanisms associated with DOX-induced cardiotoxicity and elucidate a possible therapeutic approach.
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Affiliation(s)
- Yunfan Yang
- Department of Cardiology, Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Jiajun Ren
- Department of Cardiology, Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Jifeng Zhang
- School of Pharmaceutical Sciences, Jilin University, No. 218 Xinmin Street, Changchun, 130041, China
| | - Henghe Shi
- Department of Cardiology, Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Junnan Wang
- Department of Cardiology, Second Hospital of Jilin University, Changchun, Jilin, 130041, China.
| | - Youyou Yan
- Department of Cardiology, Second Hospital of Jilin University, Changchun, Jilin, 130041, China.
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Melones-Herrero J, Alcalá S, Ruiz-Cañas L, Benítez-Buelga C, Batres-Ramos S, Calés C, Lorenzo O, Perona R, Quiroga AG, Sainz B, Sánchez-Pérez I. Platinum iodido drugs show potential anti-tumor activity, affecting cancer cell metabolism and inducing ROS and senescence in gastrointestinal cancer cells. Commun Biol 2024; 7:353. [PMID: 38519773 PMCID: PMC10959927 DOI: 10.1038/s42003-024-06052-5] [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: 05/24/2023] [Accepted: 03/14/2024] [Indexed: 03/25/2024] Open
Abstract
Cisplatin-based chemotherapy has associated clinical disadvantages, such as high toxicity and resistance. Thus, the development of new antitumor metallodrugs able to overcome different clinical barriers is a public healthcare priority. Here, we studied the mechanism of action of the isomers trans and cis-[PtI2(isopropylamine)2] (I5 and I6, respectively) against gastrointestinal cancer cells. We demonstrate that I5 and I6 modulate mitochondrial metabolism, decreasing OXPHOS activity and negatively affecting ATP-linked oxygen consumption rate. Consequently, I5 and I6 generated Reactive Oxygen Species (ROS), provoking oxidative damage and eventually the induction of senescence. Thus, herein we propose a loop with three interconnected processes modulated by these iodido agents: (i) mitochondrial dysfunction and metabolic disruptions; (ii) ROS generation and oxidative damage; and (iii) cellular senescence. Functionally, I5 reduces cancer cell clonogenicity and tumor growth in a pancreatic xenograft model without systemic toxicity, highlighting a potential anticancer complex that warrants additional pre-clinical studies.
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Affiliation(s)
- Jorge Melones-Herrero
- Department of Biochemistry. School of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Instituto de Investigaciones Biomédicas "Sols-Morreale" IIBM-CSIC-UAM, Madrid, Spain
- Biomarkers and Personalized Approach to Cancer (BioPAC) Group. Area 3 Cancer -Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Sonia Alcalá
- Department of Biochemistry. School of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Instituto de Investigaciones Biomédicas "Sols-Morreale" IIBM-CSIC-UAM, Madrid, Spain
- Biomarkers and Personalized Approach to Cancer (BioPAC) Group. Area 3 Cancer -Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Laura Ruiz-Cañas
- Department of Biochemistry. School of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Instituto de Investigaciones Biomédicas "Sols-Morreale" IIBM-CSIC-UAM, Madrid, Spain
- Biomarkers and Personalized Approach to Cancer (BioPAC) Group. Area 3 Cancer -Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Carlos Benítez-Buelga
- Instituto de Investigaciones Biomédicas "Sols-Morreale" IIBM-CSIC-UAM, Madrid, Spain
| | - Sandra Batres-Ramos
- Department of Biochemistry. School of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Instituto de Investigaciones Biomédicas "Sols-Morreale" IIBM-CSIC-UAM, Madrid, Spain
- Biomarkers and Personalized Approach to Cancer (BioPAC) Group. Area 3 Cancer -Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Carmela Calés
- Department of Biochemistry. School of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Instituto de Investigaciones Biomédicas "Sols-Morreale" IIBM-CSIC-UAM, Madrid, Spain
| | - Oscar Lorenzo
- Laboratory of Diabetes and Vascular Pathology, Instituto de Investigaciones Sanitarias-Fundación Jimenez Díaz, CIBERDEM, UAM, Madrid, Spain
| | - Rosario Perona
- Instituto de Investigaciones Biomédicas "Sols-Morreale" IIBM-CSIC-UAM, Madrid, Spain
- Centro de Investigación Biomédica en Red, Área Rare Diseases, CIBERER, ISCIII, Madrid, Spain
- Instituto de Salud Carlos III, Madrid, Spain
| | - Adoración G Quiroga
- Department of Inorganic Chemistry, School of Sciences, IAdChem, UAM, Madrid, Spain
| | - Bruno Sainz
- Instituto de Investigaciones Biomédicas "Sols-Morreale" IIBM-CSIC-UAM, Madrid, Spain.
- Biomarkers and Personalized Approach to Cancer (BioPAC) Group. Area 3 Cancer -Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.
- Centro de Investigación Biomédica en Red, Área Cáncer, CIBERONC, ISCIII, Madrid, Spain.
| | - Isabel Sánchez-Pérez
- Department of Biochemistry. School of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain.
- Instituto de Investigaciones Biomédicas "Sols-Morreale" IIBM-CSIC-UAM, Madrid, Spain.
- Biomarkers and Personalized Approach to Cancer (BioPAC) Group. Area 3 Cancer -Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.
- Centro de Investigación Biomédica en Red, Área Rare Diseases, CIBERER, ISCIII, Madrid, Spain.
- Unidad Asociada de Biomedicina UCLM-CSIC, Madrid, Spain.
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5
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Wang Y, He Z, Luo B, Wong H, Wu L, Zhou H. Human Mesenchymal Stem Cell-Derived Exosomes Promote the Proliferation and Melanogenesis of Primary Melanocytes by Attenuating the H 2O 2-Related Cytotoxicity in vitro. Clin Cosmet Investig Dermatol 2024; 17:683-695. [PMID: 38524392 PMCID: PMC10959324 DOI: 10.2147/ccid.s446676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/13/2024] [Indexed: 03/26/2024]
Abstract
Background Mesenchymal stem cell-derived exosomes (MSC-Exo) have therapeutic potential. However, the impact of MSC-Exo on the survival and melanogenesis of human primary melanocytes following H2O2-induced damage has not been clarified. We therefore investigated the effects of MSC-Exo on the H2O2-affected survival of human primary melanocytes and their proliferation, apoptosis, senescence, and melanogenesis in vitro. Methods MSC-Exo were prepared from human MSCs by sequential centrifugations and characterized by Transmission Electron Microscopy, Western blot and Nanoparticle Tracking Analysis. Human primary melanocytes were isolated and treated with different concentrations of MSC-Exo, followed by exposing to H2O2. Furthermore, the impact of pretreatment with MSC-Exo on the proliferation, apoptosis, senescence and melanogenesis of melanocytes were tested by CCK-8, flow cytometry, Western blot, L-Dopa staining, tyrosinase activity and RT-qPCR. Results Pretreatment with lower doses of MSC-Exo protected human primary melanocytes from the H2O2-triggered apoptosis, while pretreatment with higher doses of MSC-Exo enhanced the H2O2-induced melanocyte apoptosis. Compared with the untreated control, pretreatment with a lower dose (1 µg/mL) of MSC-Exo enhanced the proliferation of melanocytes, abrogated the H2O2-increased p53, p21, IL-1β, IL-6 and IL-8 expression and partially rescued the H2O2-decreased L-dopa staining reaction, tyrosinase activity, MITF and TRP1 expression in melanocytes. Conclusion Our findings indicate that treatment with a low dose of MSC-Exo promotes the proliferation and melanogenesis of human primary melanocytes by ameliorating the H2O2-induced apoptosis and senescence of melanocytes. MSC-Exo may be a promising therapeutic strategy of vitiligo.
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Affiliation(s)
- Yexiao Wang
- Department of Dermatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Zibin He
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Bingqin Luo
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Hioteng Wong
- Department of Dermatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Liangcai Wu
- Department of Dermatology, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Hui Zhou
- Department of Dermatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
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Yin F, Zhou Y, Xie D, Hu J, Luo X. Effects of nanomaterial exposure on telomere dysfunction, hallmarks of mammalian and zebrafish cell senescence, and zebrafish mortality. Ageing Res Rev 2023; 91:102062. [PMID: 37673133 DOI: 10.1016/j.arr.2023.102062] [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: 05/22/2023] [Revised: 08/21/2023] [Accepted: 09/01/2023] [Indexed: 09/08/2023]
Abstract
Environmental and occupational exposure to hazardous substances accelerates biological aging. However, the toxic effects of nanomaterials on telomere and cellular senescence (major hallmarks of the biological aging) remained controversial. This study was to synthesize all published evidence to explore the effects of nanomaterial exposure on the telomere change, cellular senescence and mortality of model animals. Thirty-five studies were included by searching electronic databases (PubMed, Embase and Web of Science). The pooled analysis by Stata 15.0 software showed that compared with the control, nanomaterial exposure could significantly shorten the telomere length [measured as kbp: standardized mean difference (SMD) = -1.88; 95% confidence interval (CI) = -3.13 - - 0.64; % of control: SMD = -1.26; 95%CI = -2.11- - 0.42; < 3 kbp %: SMD = 5.76; 95%CI = 2.92 - 8.60), increase the telomerase activity (SMD = -1.00; 95%CI = -1.74 to -0.26), senescence-associated β-galactosidase levels in cells (SMD = 8.20; 95%CI = 6.05 - 10.34) and zebrafish embryos (SMD = 7.32; 95%CI = 4.70 - 9.94) as well as the mortality of zebrafish (SMD = 3.83; 95%CI = 2.94 - 4.72)]. The expression levels of telomerase TERT, shelterin components (TRF1, TRF2 and POT1) and senescence biomarkers (p21, p16) were respectively identified to be decreased or increased in subgroup analyses. In conclusion, this meta-analysis demonstrates that nanomaterial exposure is associated with telomere attrition, cell senescence and organismal death.
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Affiliation(s)
- Fei Yin
- College of Textile and Clothing Engineering, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China
| | - Yang Zhou
- School of Textile Science and Engineering/State Key Laboratory of New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China.
| | - Dongli Xie
- College of Textile and Clothing Engineering, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China
| | - Jianchen Hu
- College of Textile and Clothing Engineering, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China
| | - Xiaogang Luo
- College of Textile and Clothing Engineering, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China.
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7
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Soleimani M, Baharnoori SM, Cheraqpour K, Momenaei B, Mirshahi R, Chow C, Shahjahan S, Nguyen T, Ashraf MJ, Huang X, Koganti R, Cheraghpour M, Ghassemi M, Djalilian AR. Cellular senescence implication in mustard keratopathy. Exp Eye Res 2023; 233:109565. [PMID: 37406956 PMCID: PMC10392783 DOI: 10.1016/j.exer.2023.109565] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/28/2023] [Accepted: 07/01/2023] [Indexed: 07/07/2023]
Abstract
Mustard agents are vesicants that were used in warfare multiple times. They are potent alkylating agents that activate cellular pathways of apoptosis, increase oxidative stress, and induce inflammation. Eyes are particularly susceptible to mustard exposure with a wide range of ocular surface damage. Three main categories of mustard-related eye injuries are acute, chronic, and delayed-onset manifestations. Mustard keratopathy (MK) is a known complication characterized by corneal opacification, ulceration, thinning, and neovascularization that can lead to severe vision loss and discomfort. Recently, a few reports demonstrated the role of senescence induction as a new pathological mechanism in mustard-related injuries that could affect wound healing. We ran the first murine model of delayed-onset MK and nitrogen mustard-induced senescence, evaluating the pathological signs of senescence in the cornea using beta-galactosidase staining. Our results suggest that nitrogen mustard exposure causes senescence in the corneal cells, which could be the underlying mechanism for chronic and late-onset ocular surface damage. We also found a significant correlation between the percentage of positive beta-galactosidase staining and the degree of fibrosis in the cornea. This provides valuable insight into the possible role of anti-senescence drugs in the near future for accelerating corneal healing and restricting fibrosis in patients with mustard keratopathy.
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Affiliation(s)
- Mohammad Soleimani
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA; Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Seyed Mahbod Baharnoori
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA; Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Kasra Cheraqpour
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Bita Momenaei
- Wills Eye Hospital, Mid Atlantic Retina, Thomas Jefferson University, Philadelphia, PA, USA.
| | - Reza Mirshahi
- Eye Research Center, The Five Senses Health Institute, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Collin Chow
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | | | - Tara Nguyen
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | - Mohammad Javad Ashraf
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | - Xiaoke Huang
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | - Raghuram Koganti
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | - Makan Cheraghpour
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mahmood Ghassemi
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | - Ali R Djalilian
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
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Sanada S, Maekawa M, Tate S, Nakaoka H, Fujisawa Y, Sayama K, Higashiyama S. SPOP is essential for DNA replication licensing through maintaining translation of CDT1 and CDC6 in HaCaT cells. Biochem Biophys Res Commun 2023; 651:30-38. [PMID: 36791496 DOI: 10.1016/j.bbrc.2023.02.012] [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: 01/20/2023] [Accepted: 02/03/2023] [Indexed: 02/05/2023]
Abstract
Speckle-type pox virus and zinc finger (POZ) protein (SPOP), a substrate recognition receptor for the cullin-3/RING ubiquitin E3 complex, leads to the ubiquitination of >40 of its target substrates. Since a variety of point mutations in the substrate-binding domain of SPOP have been identified in cancers, including prostate and endometrial cancers, the pathological roles of those cancer-associated SPOP mutants have been extensively elucidated. In this study, we evaluated the cellular functions of wild-type SPOP in non-cancerous human keratinocyte-derived HaCaT cells expressing wild-type SPOP gene. SPOP knockdown using siRNA in HaCaT cells dramatically reduced cell growth and arrested their cell cycles at G1/S phase. The expression of DNA replication licensing factors CDT1 and CDC6 in HaCaT cells drastically decreased on SPOP knockdown as their translation was inhibited. CDT1 and CDC6 downregulation induced p21 expression without p53 activation. Our results suggest that SPOP is essential for DNA replication licensing in non-cancerous keratinocyte HaCaT cells.
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Affiliation(s)
- Sayoko Sanada
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Masashi Maekawa
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan.
| | - Sota Tate
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan
| | - Hiroki Nakaoka
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Yasuhiro Fujisawa
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Koji Sayama
- Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Shigeki Higashiyama
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan; Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon, Ehime, 791-0295, Japan; Department of Oncogenesis and Tumor Regulation, Osaka International Cancer Institute, Chuo-ku, Osaka, 541-8567, Japan.
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Briones-Suarez L, Cifuentes M, Bravo-Sagua R. Secretory Factors from Calcium-Sensing Receptor-Activated SW872 Pre-Adipocytes Induce Cellular Senescence and A Mitochondrial Fragmentation-Mediated Inflammatory Response in HepG2 Cells. Int J Mol Sci 2023; 24:ijms24065217. [PMID: 36982291 PMCID: PMC10049719 DOI: 10.3390/ijms24065217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 03/11/2023] Open
Abstract
Adipose tissue inflammation in obesity has a deleterious impact on organs such as the liver, ultimately leading to their dysfunction. We have previously shown that activation of the calcium-sensing receptor (CaSR) in pre-adipocytes induces TNF-α and IL-1β expression and secretion; however, it is unknown whether these factors promote hepatocyte alterations, particularly promoting cell senescence and/or mitochondrial dysfunction. We generated conditioned medium (CM) from the pre-adipocyte cell line SW872 treated with either vehicle (CMveh) or the CaSR activator cinacalcet 2 µM (CMcin), in the absence or presence of the CaSR inhibitor calhex 231 10 µM (CMcin+cal). HepG2 cells were cultured with these CM for 120 h and then assessed for cell senescence and mitochondrial dysfunction. CMcin-treated cells showed increased SA-β-GAL staining, which was absent in TNF-α- and IL-1β-depleted CM. Compared to CMveh, CMcin arrested cell cycle, increased IL-1β and CCL2 mRNA, and induced p16 and p53 senescence markers, which was prevented by CMcin+cal. Crucial proteins for mitochondrial function, PGC-1α and OPA1, were decreased with CMcin treatment, concomitant with fragmentation of the mitochondrial network and decreased mitochondrial transmembrane potential. We conclude that pro-inflammatory cytokines TNF-α and IL-1β secreted by SW872 cells after CaSR activation promote cell senescence and mitochondrial dysfunction, which is mediated by mitochondrial fragmentation in HepG2 cells and whose effects were reversed with Mdivi-1. This investigation provides new evidence about the deleterious CaSR-induced communication between pre-adipocytes and liver cells, incorporating the mechanisms involved in cellular senescence.
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Affiliation(s)
- Lautaro Briones-Suarez
- Laboratory of Obesity and Metabolism (OMEGA), Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago 7830490, Chile
- Department of Nutrition and Public Health, Faculty of Health and Food Sciences, University of Bío-Bío, Chillán 3800708, Chile
| | - Mariana Cifuentes
- Laboratory of Obesity and Metabolism (OMEGA), Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago 7830490, Chile
- Center for Exercise, Metabolism and Cancer (CEMC), Faculty of Medicine, University of Chile, Santiago 8380453, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Santiago 8380492, Chile
- Correspondence: (M.C.); (R.B.-S.); Tel.: +56-229781428 (M.C.); +56-229781563 (R.B.-S.)
| | - Roberto Bravo-Sagua
- Laboratory of Obesity and Metabolism (OMEGA), Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago 7830490, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Santiago 8380492, Chile
- Interuniversity Center for Healthy Aging (CIES), Consortium of Universities of the State of Chile (CUECH), Santiago 8320216, Chile
- Correspondence: (M.C.); (R.B.-S.); Tel.: +56-229781428 (M.C.); +56-229781563 (R.B.-S.)
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Ren LK, Yang Y, Fan J, Ma CM, Bian X, Wang DF, Xu Y, Liu BX, Zhang N. Novel antioxidant peptide from broken rice resist H2O2-induced premature senescence in 2BS cells via PI3K/Akt and JNK/Bax signaling pathway. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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11
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Critical Role of Cathepsin L/V in Regulating Endothelial Cell Senescence. BIOLOGY 2022; 12:biology12010042. [PMID: 36671735 PMCID: PMC9855167 DOI: 10.3390/biology12010042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/22/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022]
Abstract
The senescence of vascular endothelial cells (ECs) is characterized as a hallmark of vascular aging, which leads to the initiation, progress, and advancement of cardiovascular diseases. However, the mechanism of the ECs senescence remains elusive. In this study, thoracic aortas were separated from young (8-week-old) and aged (18-month-old) mice. Decreased Ctsl expression and increased vascular remodeling were observed in senescent aorta. H2O2 was used to induce human umbilical vein endothelial cells (HUVECs) senescence, as shown by increased SA-β-gal positive cells and upregulated p21 level. CTSV significantly decreased after H2O2 treatment, while over-expression of CTSV by adenovirus reduced cellular senescence. RNA sequencing analysis was conducted subsequently, and ALDH1A2 was observed to significantly increased in H2O2 group and decreased after over-expression of CTSV. This result was further confirmed by RT-PCR and WB. Moreover, over-expression of CTSV reduced the increase of ERK1/2 and AKT phosphorylation induced by H2O2. Additionally, retinoic acid (RA), the major production of ALDH1A2, was added to CTSV over-expressed senescent HUVECs. Administration of RA activated AKT and ERK1/2, induced the expression of p21, and enhanced SA-β-gal positive cells, while not affecting the expression of CTSV and ALDH1A2. These results were further confirmed in doxorubicin (DOX)-induced senescent ECs. In conclude, we have identified that Ctsl/CTSV plays a key role in ECs senescence by regulating ALDH1A2 to activate AKT/ ERK1/2-P21 pathway. Therefore, targeting Ctsl/CTSV may be a potential therapeutic strategy in EC senescence.
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12
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Current Understanding of the Role of Senescent Melanocytes in Skin Ageing. Biomedicines 2022; 10:biomedicines10123111. [PMID: 36551868 PMCID: PMC9775966 DOI: 10.3390/biomedicines10123111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022] Open
Abstract
Melanocytes reside within the basal epidermis of human skin, and function to protect the skin from ultraviolet light through the production of melanin. Prolonged exposure of the skin to UV light can induce irreparable DNA damage and drive cells into senescence, a sustained cell cycle arrest that prevents the propagation of this damage. Senescent cells can also be detrimental and contribute to skin ageing phenotypes through their senescence-associated secretory phenotype. Senescent cells can act in both an autocrine and paracrine manner to produce widespread tissue inflammation and skin ageing. Recently, melanocytes have been identified as the main senescent cell population within the epidermis and have been linked to a variety of skin ageing phenotypes, such as epidermal thinning and the presence of wrinkles. However, the literature surrounding melanocyte senescence is limited and tends to focus on the role of senescence in the prevention of melanoma. Therefore, this review aims to explore the current understanding of the contribution of senescent melanocytes to human skin ageing.
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13
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de França E, dos Santos RVT, Baptista LC, Da Silva MAR, Fukushima AR, Hirota VB, Martins RA, Caperuto EC. Potential Role of Chronic Physical Exercise as a Treatment in the Development of Vitiligo. Front Physiol 2022; 13:843784. [PMID: 35360245 PMCID: PMC8960951 DOI: 10.3389/fphys.2022.843784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 02/08/2022] [Indexed: 02/04/2023] Open
Abstract
Vitiligo is an autoimmune disease characterized by progressive skin depigmentation and the appearance of white patches throughout the body caused by significant apoptosis of epidermal melanocytes. Despite not causing any physical pain, vitiligo can originate several psychosocial disorders, drastically reducing patients' quality of life. Emerging evidence has shown that vitiligo is associated with several genetic polymorphisms related to auto-reactivity from the immune system to melanocytes. Melanocytes from vitiligo patients suffer from excess reactive oxygen species (ROS) produced by defective mitochondria besides a poor endogenous antioxidant system (EAS). This redox imbalance results in dramatic melanocyte oxidative stress (OS), causing significant damage in proteins, lipid membranes, and DNA. The damaged melanocytes secret damage-associated molecular pattern (DAMPs), inducing and increasing inflammatory gene expression response that ultimately leads to melanocytes apoptosis. Vitiligo severity has been also associated with increasing the prevalence and incidence of metabolic syndrome (MetS) or associated disorders such as insulin resistance and hypercholesterolemia. Thus, suggesting that in genetically predisposed individuals, the environmental context that triggers MetS (i.e., sedentary lifestyle) may also be an important trigger for the development and severity of vitiligo disease. This paper will discuss the relationship between the immune system and epidermal melanocytes and their interplay with the redox system. Based on state-of-the-art evidence from the vitiligo research, physical exercise (PE) immunology, and redox system literature, we will also propose chronic PE as a potential therapeutic strategy to treat and prevent vitiligo disease progression. We will present evidence that chronic PE can change the balance of inflammatory to an anti-inflammatory state, improve both EAS and the mitochondrial structure and function (resulting in the decrease of OS). Finally, we will highlight clinically relevant markers that can be analyzed in a new research avenue to test the potential applicability of chronic PE in vitiligo disease.
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Affiliation(s)
- Elias de França
- Human Movement Laboratory, São Judas University, São Paulo, Brazil
- Departamento de Biociências, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Liliana C. Baptista
- Faculty of Sport, Research Centre in Physical Activity, Health and Leisure, University of Porto, Porto, Portugal
- Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, AL United States
- Targeted Exercise, Microbiome and Aging Laboratory, University of Alabama, Birmingham, AL United States
| | - Marco A. R. Da Silva
- Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
- Department of Physical Education, Universidade da Amazônia, Belém, Brazil
| | - André R. Fukushima
- Centro Universitário das Américas – FAM, São Paulo, Brazil
- Faculdade de Ciências da Saúde – IGESP – FASIG, São Paulo, Brazil
| | | | - Raul A. Martins
- Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
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