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Fang K, Gu Q, Zeng M, Huang Z, Qiu H, Miao J, Fang Y, Zhao Y, Xiao Y, Xu T, Golodok RP, Savich VV, Ilyushchenko AP, Ai F, Liu D, Wang R. Tannic acid-reinforced zwitterionic hydrogels with multi-functionalities for diabetic wound treatment. J Mater Chem B 2022; 10:4142-4152. [PMID: 35485376 DOI: 10.1039/d1tb02413b] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Diabetic wounds remain one of the most prevalent hard-to-heal wounds in the clinic. The causative factors impeding the wound healing process include not only the elevated oxidative stress and bacterial infections but also the high and repetitive plantar stress (including compressive pressure and shear stress). Conventional hydrogel dressings are mechanically weak and fragile, limiting their applications in the high stress-loading conditions of diabetic foot ulcers. As such, mechanically tough hydrogel dressings with appropriate bioactivities are highly desirable for diabetic wound treatment. In this study, a mechanically reinforced hydrogel with multiple biofunctionalities was developed via a facile and straightforward strategy of incorporation of tannic acid (TA) in zwitterionic poly(sulfobetaine methacrylate) (polySBMA) hydrogel. The polySBMA hydrogel reinforced by TA showed excellent mechanical property, with the tensile stress and compressive stress up to 93.7 kPa and 18.4 MPa, respectively, and it could resist cyclic compressive stress at ∼200 kPa (maximum in-shoe plantar pressure) for up to 3500 cycles. The TA-reinforced zwitterionic hydrogel exhibited strong adhesion to skin tissue (20.2 kPa), which was expected to reduce the shear stress on the foot. The plantar pressure on the foot was significantly reduced by the application of the resilient hydrogel. Attributed to the antioxidant and antibacterial properties of TA, the hydrogel showed rapid radical scavenging capability and strong bactericidal efficacy against Gram-positive and Gram-negative bacteria. In vitro and in vivo studies confirmed that the hydrogel has good cytocompatibility and negligible skin irritation, and promoted healing of diabetic wounds in mice. Such tough and effective hydrogel with a straightforward preparation strategy holds great promise as wound dressings for diabetic wound treatment.
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Affiliation(s)
- Kun Fang
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China. .,School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China.
| | - Qinwei Gu
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China. .,School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China.
| | - Mingzhu Zeng
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
| | - Zhimao Huang
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
| | - Haofeng Qiu
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jiru Miao
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
| | - Yue Fang
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
| | - Yinyu Zhao
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
| | - Ying Xiao
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
| | - Ting Xu
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
| | - Robert Petrovich Golodok
- SSI O V Roman Powder Metallurgy Institute, National Academy of Sciences of Belarus, Minsk, 220005, Belarus
| | - Vadim Victorovich Savich
- SSI O V Roman Powder Metallurgy Institute, National Academy of Sciences of Belarus, Minsk, 220005, Belarus
| | | | - Fanrong Ai
- School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China.
| | - Donglei Liu
- School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China.
| | - Rong Wang
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315300, China.
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Yuan J, Liang X, Zhou W, Feng J, Wang Z, Shen S, Guan X, Zhao L, Deng F. TRPA1 promotes cisplatin-induced nephrotoxicity through inflammation mediated by the MAPK/NF-κB signaling pathway. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1578. [PMID: 34790784 PMCID: PMC8576655 DOI: 10.21037/atm-21-5125] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/21/2021] [Indexed: 11/24/2022]
Abstract
Background The nephrotoxicity induced by cisplatin (DDP) has been a severe obstacle for its clinical use in anticancer treatment. The apoptosis and inflammation induced by DDP are the main causes of the nephrotoxicity. Transient receptor potential ankyrin 1 (TRPA1) is a non-selective cation ligand-gated channel that is involved in the inflammation progress. Methods The apoptosis, inflammation, MAPK/NF-κB signaling pathway, and TRPA1 expression were assessed after HEK293 cells had been induced by DDP, and the role of TRPA1 in apoptosis and inflammation of DDP-induced HEK293 cells treated with TRPA1 antagonist HC-030031 was also evaluated by quantitative reverse transcription-polymerase chain reaction (qRT-PCR), flow cytometry, and western blot assays. Results The cell viability was reduced by DDP in both a time-dependent and dose-dependent manner with a minimal cytotoxic concentration of 10 μM. Moreover, DDP induced an enhancement of the apoptosis and inflammation in a dose-dependent manner, as indicated by the increase of the relative protein level of cleaved-caspase3 (cleaved-cas3), the cleavage product of caspase-3 substrate poly-ADP-ribose polymerase (cleaved-PARP) and inducible nitric oxide synthase (iNOS), and the messenger RNA (mRNA) expression level of interleukin (IL)-1β, IL-6, tumor necrosis factor-α (TNF-α), and interferon-γ (INF-γ). Additionally, DDP treatment increased the protein phosphorylation expression of IKKβ, JNK, ERK, and p38 in a dose-dependent manner, which was antagonized by the treatment of NF-κB-specific inhibitor BAY 11-7082 and pan-MAPK inhibitor U0126. It was also found that DDP upregulated the expression of TRPA1 at both the mRNA and protein levels in a dose-dependent manner. Besides, block of TRPA1 with HC-030031 relieved the apoptosis, diminished the level of IL-1β, IL-6, TNF-α, and INF-γ, reduced the level of cleaved-cas3, cleaved-PARP, and iNOS, decreased the p-IKKβ, p-JNK, p-ERK, and p-p38 expression, and enhanced the expression of IκBα. Conclusions Taken together, these results indicate that TRPA1 regulates DDP-induced nephrotoxicity via inflammation mediated by the MAPK/NF-κB signaling pathway in HEK293 cells.
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Affiliation(s)
- Jinyan Yuan
- Department of Nephrology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiao Liang
- Department of Internal Medicine, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Wei Zhou
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Jing Feng
- Department of Traditional Chinese Medicine, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhenyang Wang
- Department of Nephrology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Shaoxian Shen
- Department of Nephrology, Jinniu Hospital of Sichuan Provincial People's Hospital and Chengdu Jinniu District People's Hospital, Chengdu, China
| | - Xin Guan
- Department of Nephrology, Jinniu Hospital of Sichuan Provincial People's Hospital and Chengdu Jinniu District People's Hospital, Chengdu, China
| | - Liangbin Zhao
- Department of Nephrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fei Deng
- Department of Nephrology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Department of Nephrology, Jinniu Hospital of Sichuan Provincial People's Hospital and Chengdu Jinniu District People's Hospital, Chengdu, China
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3
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Sun C, Janjic Rankovic M, Folwaczny M, Otto S, Wichelhaus A, Baumert U. Effect of Tension on Human Periodontal Ligament Cells: Systematic Review and Network Analysis. Front Bioeng Biotechnol 2021; 9:695053. [PMID: 34513810 PMCID: PMC8429507 DOI: 10.3389/fbioe.2021.695053] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 08/10/2021] [Indexed: 01/09/2023] Open
Abstract
Orthodontic tooth movement is based on the remodeling of tooth-surrounding tissues in response to mechanical stimuli. During this process, human periodontal ligament cells (hPDLCs) play a central role in mechanosensing and mechanotransduction. Various in vitro models have been introduced to investigate the effect of tension on hPDLCs. They provide a valuable body of knowledge on how tension influences relevant genes, proteins, and metabolites. However, no systematic review summarizing these findings has been conducted so far. Aim of this systematic review was to identify all related in vitro studies reporting tension application on hPDLCs and summarize their findings regarding force parameters, including magnitude, frequency and duration. Expression data of genes, proteins, and metabolites was extracted and summarized. Studies' risk of bias was assessed using tailored risk of bias tools. Signaling pathways were identified by protein-protein interaction (PPI) networks using STRING and GeneAnalytics. According to our results, Flexcell Strain Unit® and other silicone-plate or elastic membrane-based apparatuses were mainly adopted. Frequencies of 0.1 and 0.5 Hz were predominantly applied for dynamic equibiaxial and uniaxial tension, respectively. Magnitudes of 10 and 12% were mostly employed for dynamic tension and 2.5% for static tension. The 10 most commonly investigated genes, proteins and metabolites identified, were mainly involved in osteogenesis, osteoclastogenesis or inflammation. Gene-set enrichment analysis and PPI networks gave deeper insight into the involved signaling pathways. This review represents a brief summary of the massive body of knowledge in this field, and will also provide suggestions for future researches on this topic.
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Affiliation(s)
- Changyun Sun
- Department of Orthodontics and Dentofacial Orthopedics, University Hospital, LMU Munich, Munich, Germany
| | - Mila Janjic Rankovic
- Department of Orthodontics and Dentofacial Orthopedics, University Hospital, LMU Munich, Munich, Germany
| | - Matthias Folwaczny
- Department of Conservative Dentistry and Periodontology, University Hospital, LMU Munich, Munich, Germany
| | - Sven Otto
- Department of Oral and Maxillofacial Plastic Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Andrea Wichelhaus
- Department of Orthodontics and Dentofacial Orthopedics, University Hospital, LMU Munich, Munich, Germany
| | - Uwe Baumert
- Department of Orthodontics and Dentofacial Orthopedics, University Hospital, LMU Munich, Munich, Germany
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Wang L, Yang X, Wan L, Wang S, Pan J, Liu Y. ARHGAP17 inhibits pathological cyclic strain-induced apoptosis in human periodontal ligament fibroblasts via Rac1/Cdc42. Clin Exp Pharmacol Physiol 2020; 47:1591-1599. [PMID: 32391922 DOI: 10.1111/1440-1681.13336] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 04/28/2020] [Accepted: 05/04/2020] [Indexed: 11/29/2022]
Abstract
Rho GTPase-activating protein (Rho-GAP) and Rho GDP dissociation inhibitor (Rho- GDI) are two main negative regulators of Rho GTPase. Our previous work has found that Rho-GDI and Rho GTPase are involved in the response of human periodontal ligament (PDL) cells to mechanical stress. However, whether Rho-GAP also has a role in this process remains unknown. Here, we attempted to find the Rho-GAP gene that may be involved in pathological stretch-induced apoptosis of PDL cells. Human PDL fibroblasts were exposed to 20% cyclic strain for 6 hours or 24 hours, after which the expression levels of ARHGAP10, ARHGAP17, ARHGAP21, ARHGAP24 and ARHGAP28 were determined. Results showed that ARHGAP17 expression decreased the most obviously after treatment of stretch. In addition, ARHGAP17 overexpression abolished 20% cyclic strain-induced apoptosis. Therefore, ARHGAP17 has an important role in pathological stretch-induced apoptosis of human PDL fibroblasts. Moreover, we found that ARHGAP17 overexpression also alleviated cyclic strain-induced activation of Rac1/Cdc42, a major downstream target of ARHGAP17. Furthermore, two Rac1 inhibitors, NSC23766 and EHT 1864, both attenuated ARHGAP17 knockdown-mediated apoptosis in human PDL fibroblasts. Collectively, our data demonstrate that ARHGAP17 inhibits pathological cyclic strain-induced apoptosis in human PDL fibroblasts through inactivating Rac1/Cdc42. This study highlights the importance of Rho signalling in the response of human PDL fibroblasts to mechanical stress.
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Affiliation(s)
- Li Wang
- Department of Orthodontic, Shanghai Stomatological Hospital, Fudan University, Shanghai, China.,Dental Department, Shanghai 1st People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Xiaojie Yang
- Dental Department, Shanghai 1st People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Leilei Wan
- Dental Department, Shanghai 1st People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Shiwei Wang
- Dental Department, Shanghai 1st People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Jinsong Pan
- Dental Department, Shanghai 1st People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Yuehua Liu
- Department of Orthodontic, Shanghai Stomatological Hospital, Fudan University, Shanghai, China
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5
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Closer to Nature Through Dynamic Culture Systems. Cells 2019; 8:cells8090942. [PMID: 31438519 PMCID: PMC6769584 DOI: 10.3390/cells8090942] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/16/2019] [Accepted: 08/19/2019] [Indexed: 12/12/2022] Open
Abstract
Mechanics in the human body are required for normal cell function at a molecular level. It is now clear that mechanical stimulations play significant roles in cell growth, differentiation, and migration in normal and diseased cells. Recent studies have led to the discovery that normal and cancer cells have different mechanosensing properties. Here, we discuss the application and the physiological and pathological meaning of mechanical stimulations. To reveal the optimal conditions for mimicking an in vivo microenvironment, we must, therefore, discern the mechanotransduction occurring in cells.
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6
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Wei Z, Xu H, Zhang Y, Yi X, Yang X, Chen Y, Mao N, Li S, Xu D, Li S, Zhang H, Li D, Zhang G, Zhang B, Jin F, Gao X, Cai W, Zhang L, Wang R, Yang F. Rho GDP dissociation inhibitor α silencing attenuates silicosis by inhibiting RhoA/Rho kinase signalling. Exp Cell Res 2019; 380:131-140. [PMID: 31029634 DOI: 10.1016/j.yexcr.2019.04.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/21/2019] [Accepted: 04/23/2019] [Indexed: 02/01/2023]
Abstract
Transforming growth factor-β1 (TGF-β1) alters the fibroblast phenotype by promoting transdifferentiation into myofibroblasts, which exhibit the ability to promote collagen synthesis and extracellular matrix (ECM) deposition, thereby playing a significant role in the pathology of silicosis. In this study, we investigated the regulatory mechanisms involved in myofibroblast transdifferentiation. Two-dimensional gel electrophoresis showed that Rho GDP-dissociation inhibitor α (RhoGDIα) was upregulated following myofibroblast transdifferentiation stimulated by TGF-β1. We hypothesised that RhoGDIα may induce myofibroblast transdifferentiation and thus result in silicosis. Accordingly, the biological significance of RhoGDIα in cell proliferation and apoptosis was investigated by deletion of RhoGDIα in MRC-5 cells. In addition, a mechanistic study showed that fasudil, an inhibitor of the RhoA/Rho kinase (ROCK) signalling pathway, reduced the levels of RhoGDIα, RhoA, and phospho-myosin phosphatase (phospho-MYPT) in MRC-5 cells and silicosis model rats. Knockdown of RhoGDIα inhibited myofibroblast transdifferentiation and collagen deposition through RhoGDIα/RhoA/ROCK signalling in silicosis model mice. Overall, downregulation of RhoGDIα may significantly promote cell apoptosis and inhibit cell growth, resulting in reversal of myofibroblast transdifferentiation by RhoA/ROCK in vitro and in vivo. These data will facilitate further exploration of the potential use of RhoGDIα as a target for silicosis therapy.
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Affiliation(s)
- Zhongqiu Wei
- Basic Medical College, Hebei Medical University, Shijiazhuang, China
| | - Hong Xu
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yi Zhang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Xue Yi
- Key Laboratory of Functional and Clinical Translational Medicine, Fujian Province University, Department of Basic Medicine, Xiamen Medical College, Xiamen, China
| | - Xinyu Yang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yingying Chen
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Na Mao
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Shifeng Li
- Basic Medical College, Hebei Medical University, Shijiazhuang, China
| | - Dingjie Xu
- College of Traditional Chinese Medicine, North China University of Science and Technology, Tangshan, China
| | - Shumin Li
- Basic Medicine College, North China University of Science and Technology, Tangshan, China
| | - Hui Zhang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Dan Li
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Guizhen Zhang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Bonan Zhang
- Basic Medicine College, North China University of Science and Technology, Tangshan, China
| | - Fuyu Jin
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Xuemin Gao
- Basic Medical College, Hebei Medical University, Shijiazhuang, China
| | - Wenchen Cai
- College of Preventive Medicine, North China University of Science and Technology, Tangshan, China
| | - Lijuan Zhang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Ruimin Wang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Fang Yang
- Basic Medical College, Hebei Medical University, Shijiazhuang, China.
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Chukkapalli SS, Lele TP. Periodontal cell mechanotransduction. Open Biol 2019; 8:rsob.180053. [PMID: 30209038 PMCID: PMC6170509 DOI: 10.1098/rsob.180053] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 08/16/2018] [Indexed: 01/09/2023] Open
Abstract
The periodontium is a structurally and functionally complex tissue that facilitates the anchorage of teeth in jaws. The periodontium consists of various cell types including stem cells, fibroblasts and epithelial cells. Cells of the periodontium are constantly exposed to mechanical stresses generated by biological processes such as the chewing motions of teeth, by flows generated by tongue motions and by forces generated by implants. Mechanical stresses modulate the function of cells in the periodontium, and may play a significant role in the development of periodontal disease. Here, we review the literature on the effect of mechanical forces on periodontal cells in health and disease with an emphasis on molecular and cellular mechanisms.
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Affiliation(s)
- Sasanka S Chukkapalli
- Department of Oral Biology, University of Florida, College of Dentistry, Gainesville, FL 32610, USA.,Center for Molecular Microbiology, University of Florida, College of Dentistry, Gainesville, FL 32610, USA
| | - Tanmay P Lele
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
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Wu Y, Zhuang J, Zhao D, Xu C. Interaction between caspase-3 and caspase-5 in the stretch-induced programmed cell death in the human periodontal ligament cells. J Cell Physiol 2019; 234:13571-13581. [PMID: 30604868 DOI: 10.1002/jcp.28035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 11/30/2018] [Indexed: 12/22/2022]
Abstract
In our previous studies, programmed cell death (PCD) was induced in human periodontal ligament (PDL) cells, through activation of caspase-3 and upregulation of CASP5 gene (encoding caspase-5 protein), in response to mechanical stretch loading. The aim of this study is to explore the relationship between the inflammatory caspase, caspase-5, and the apoptotic executioner protein, caspase-3, in human PDL cells. Here, we found that cyclic stretching upregulated the activity and the protein expression level of caspase-3 and -5 and the addition of the caspase-3 inhibitor or caspase-5 inhibitor significantly inhibited the stretch-induced PCD. Meanwhile, the inhibition of caspase-5 inhibited the activation of caspase-3 and vice versa. The result of coimmunoprecipitation also demonstrated that the expression of caspase-3 was immunoprecipitated with caspase-5. Thus, our study revealed that the in vitro application of cyclic stretching induced PCD by activation of caspase-3 and -5 in human PDL cells, and these two caspases could interact with each other after mechanical stretch loading. The study may facilitate further studies on the mechanism of stretch-induced PCD and help us understand the force-related periodontal homeostasis and remodeling better.
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Affiliation(s)
- Yaqin Wu
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Jiabao Zhuang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Dan Zhao
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Chun Xu
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
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Liu X, Jiang S, Tian X, Jiang Y. Expression of cleaved caspase-3 predicts good chemotherapy response but poor survival for patients with advanced primary triple-negative breast cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:4363-4373. [PMID: 31949833 PMCID: PMC6962992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/14/2018] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To assess cleaved caspase-3 (CC3), Ki-67, and E-cadherin (E-cad) expression in relation to chemotherapy response and prognosis of patients with advanced primary triple-negative breast cancer (TNBC). METHODS CC3 expression was detected immunohistochemically in 67 pre-chemotherapy biopsy samples. Ki67 and E-cad levels were obtained from patients' medical records. RESULTS CC3-positivity (N = 32; 47.8%) was associated with a higher first-line chemotherapy overall response rate (ORR; P = 0.028) and second-line chemotherapy clinical benefit rate (CBR; P = 0.033). The Ki-67 high-risk group (N = 51; 76.1%) exhibited a reduced second-line chemotherapy CBR (P = 0.024). The E-cad negative group (N = 25; 37.3%) exhibited a lower first-line chemotherapy ORR (P = 0.044) and CBR (P<0.001), and a lower second-line chemotherapy CBR (P = 0.020). CC3, Ki-67, and E-cad were significant predictors of third-line chemotherapy ORR or CBR. Similar numbers of chemotherapy cycles were completed by the CC3-positive and -negative groups. The Ki-67 high-risk and E-cad negative groups completed fewer second-line chemotherapy cycles (P = 0.038) and fewer first-line chemotherapy cycles, respectively (P = 0.001). Kaplan-Meier analyses identified worse outcomes for the CC3-positive, Ki-67 high-risk, and E-cad negative groups than for their corresponding comparison groups (P<0.05). Multivariate Cox regression analysis identified CC3 expression and an absence of E-cad expression as independent survival factors (P<0.05). CONCLUSIONS Our CC3-positive group exhibited a better chemotherapy response, but a worse prognosis. The Ki-67 high-risk and E-cad negative groups exhibited both a worse chemotherapy response and worse prognosis.
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Affiliation(s)
- Xiaodan Liu
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical UniversityShenyang, Liaoning Province, China
- Department of General Surgery, Shenyang Military General HospitalShenyang, China
| | - Shenyi Jiang
- Department of General Medical Practice, The First Affiliated Hospital of China Medical UniversityShenyang, Liaoning Province, China
| | - Xin Tian
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical UniversityShenyang, Liaoning Province, China
| | - Youhong Jiang
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical UniversityShenyang, Liaoning Province, China
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Mechanical Stress Regulates Osteogenesis and Adipogenesis of Rat Mesenchymal Stem Cells through PI3K/Akt/GSK-3 β/ β-Catenin Signaling Pathway. BIOMED RESEARCH INTERNATIONAL 2017; 2017:6027402. [PMID: 28286769 PMCID: PMC5329655 DOI: 10.1155/2017/6027402] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 12/16/2016] [Accepted: 01/22/2017] [Indexed: 12/21/2022]
Abstract
Osteogenesis and adipogenesis of bone marrow mesenchymal stem cells (BMSCs) are regarded as being of great importance in the regulation of bone remodeling. In this study, rat BMSCs were exposed to different levels of cyclic mechanical stress generated by liquid drops and cultured in general medium or adipogenic medium. Markers of osteogenic (Runx2 and Collagen I) and adipogenic (C/EBPα, PPARγ, and lipid droplets) differentiation were detected using Western blot and histological staining. The protein levels of members of the phosphatidylinositol 3-kinase (PI3K)/Akt/glycogen synthase kinase 3β (GSK-3β)/β-catenin signaling pathway were also examined. Results showed that small-magnitude stress significantly upregulated Runx2 and Collagen I and downregulated PPARγ and C/EBPα expression in BMSCs cultured in adipogenic medium, while large-magnitude stress reversed the effect when compared with unloading groups. The PI3K/Akt signaling pathway could be strongly activated by mechanical stimulation; however, large-magnitude stress led to decreased activation of the signaling pathway when compared with small-magnitude stress. Activation of β-catenin with LiCl led to increased expression of Runx2 and Collagen I and reduction of C/EBPα and PPARγ expression in BMSCs. Inhibition of PI3K/Akt signaling partially blocked the expression of β-catenin. Taken together, our results indicate that mechanical stress-regulated osteogenesis and adipogenesis of rat BMSCs are mediated, at least in part, by the PI3K/Akt/GSK-3β/β-catenin signaling pathway.
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Wu Y, Zhao D, Zhuang J, Zhang F, Xu C. Caspase-8 and Caspase-9 Functioned Differently at Different Stages of the Cyclic Stretch-Induced Apoptosis in Human Periodontal Ligament Cells. PLoS One 2016; 11:e0168268. [PMID: 27942018 PMCID: PMC5152893 DOI: 10.1371/journal.pone.0168268] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Accepted: 11/29/2016] [Indexed: 11/19/2022] Open
Abstract
Background Human periodontal ligament (PDL) cells underwent apoptosis after mechanical stretch loading. However, the exact signalling pathway remains unknown. This study aimed to elucidate how the apoptotic caspases functioned in the cyclic stretch-induced apoptosis in human PDL cells. Materials and Methods In the present study, 20% cyclic stretch was selected to load the cells for 6 or 24 h. The following parameters were analyzed: apoptotic rates, the protein levels of caspase-3, -7, -8 and -9 and the activities of caspase-8 and -9. Subsequently, the influences of caspase-8 and caspase-9 inhibitors on the apoptotic rate and the protein level of the activated caspase-3 were assessed as well. Results The apoptotic rates increased in response to cyclic stretch, but the cells entered different apoptotic stages after 6 and 24 h stretches. Caspase-3, -7, -8 and -9 were all activated after stretch loading. The stretch-induced apoptosis and the protein level of the activated caspase-3 were inhibited after inhibiting both caspase-8 and caspase-9 in both 6 and 24 h stretched cells and after inhibiting caspase-9 in 24 h stretched cells. Conclusion Caspase-8 and -9 functioned differently at different apoptotic stages in human PDL cells after cyclic stretch.
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Affiliation(s)
- Yaqin Wu
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Dan Zhao
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jiabao Zhuang
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Fuqiang Zhang
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Chun Xu
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
- * E-mail:
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Cyclic Compressive Stress Regulates Apoptosis in Rat Osteoblasts: Involvement of PI3K/Akt and JNK MAPK Signaling Pathways. PLoS One 2016; 11:e0165845. [PMID: 27806136 PMCID: PMC5091858 DOI: 10.1371/journal.pone.0165845] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 10/18/2016] [Indexed: 12/25/2022] Open
Abstract
It is widely accepted that physiological mechanical stimulation suppresses apoptosis and induces synthesis of extracellular matrix by osteoblasts; however, the effect of stress overloading on osteoblasts has not been fully illustrated. In the present study, we investigated the effect of cyclic compressive stress on rat osteoblasts apoptosis, using a novel liquid drop method to generate mechanical stress on osteoblast monolayers. After treatment with different levels of mechanical stress, apoptosis of osteoblasts and activations of mitogen-activated protein kinases (MAPKs) and PI3-kinase (PI3K)/Akt signaling pathways were investigated. Osteoblasts apoptosis was observed after treated with specific inhibitors prior to mechanical stimulation. Protein levels of Bax/Bcl-2/caspase-3 signaling were determined using western blot with or without inhibitors of PI3K/Akt and phosphorylation of c-jun N-terminal kinase (JNK) MAPK. Results showed that mechanical stimulation led to osteoblasts apoptosis in a dose-dependent manner and a remarkable activation of MAPKs and PI3K/Akt signaling pathways. Activation of PI3K/Akt protected against apoptosis, whereas JNK MAPK increased apoptosis via regulation of Bax/Bcl-2/caspase-3 activation. In summary, the PI3K/Akt and JNK MAPK signaling pathways played opposing roles in osteoblasts apoptosis, resulting in inhibition of apoptosis upon small-magnitude stress and increased apoptosis upon large-magnitude stress.
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Chen J, Liu Z, Zhong G, Li Z, Qian L, Li X, Chen B, Lao L, Wang H. Cyclic stretch enhances apoptosis in human lumbar ligamentum flavum cells via the induction of reactive oxygen species generation. J Spinal Cord Med 2016; 39:450-4. [PMID: 26850884 PMCID: PMC5102289 DOI: 10.1080/10790268.2016.1141470] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE The lumbar ligamentum flavum (LF) is an important part of the spine to maintain the stability of the spine. In this study we aimed to examine whether mechanical force by cyclic stretch could induce apoptosis in human LF cells and investigate the underlying mechanism. METHODS LF cells were isolated from six young patients undergoing spinal surgery and then cultured in vitro. LF cells were subjected to cyclic stretch and the poptosis was detected by flow cytometry. The level of intracellular reactive oxygen species (ROS) and caspase-9 activity were measured. RESULTS Cyclic stretch at a frequency of 0.5 Hz with 20% elongation induced the apoptosis of human LF cells in vitro, and this was correlated with increased ROS generation and activation of caspase-9. CONCLUSION Our study suggests that cyclic stretch-induced apoptosis in human LF cells may be mediated by ROS generation and the activation of caspase-9.
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Affiliation(s)
| | - Zude Liu
- Correspondence to: Zude Liu, Department of Orthopedics, Renji Hospital, Shanghai JiaoTong University School of Medicine, 1630 DongFang Road, Shanghai 200127, People's Republic of China.
| | - Guibin Zhong
- Guibin Zhong, Department of Orthopedics, Renji Hospital, Shanghai JiaoTong University School of Medicine, 1630 DongFang Road, Shanghai 200127, People's Republic of China.
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Zhang K, Ding W, Sun W, Sun XJ, Xie YZ, Zhao CQ, Zhao J. Beta1 integrin inhibits apoptosis induced by cyclic stretch in annulus fibrosus cells via ERK1/2 MAPK pathway. Apoptosis 2015; 21:13-24. [DOI: 10.1007/s10495-015-1180-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Ma X, Dang C, Kang H, Dai Z, Lin S, Guan H, Liu X, Wang X, Hui W. Saikosaponin-D reduces cisplatin-induced nephrotoxicity by repressing ROS-mediated activation of MAPK and NF-κB signalling pathways. Int Immunopharmacol 2015; 28:399-408. [DOI: 10.1016/j.intimp.2015.06.020] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 05/25/2015] [Accepted: 06/15/2015] [Indexed: 11/25/2022]
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Liao YX, Fu ZZ, Zhou CH, Shan LC, Wang ZY, Yin F, Zheng LP, Hua YQ, Cai ZD. AMD3100 reduces CXCR4-mediated survival and metastasis of osteosarcoma by inhibiting JNK and Akt, but not p38 or Erk1/2, pathways in in vitro and mouse experiments. Oncol Rep 2015; 34:33-42. [PMID: 25997540 PMCID: PMC4484610 DOI: 10.3892/or.2015.3992] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 04/29/2015] [Indexed: 12/27/2022] Open
Abstract
Osteosarcoma (OS) has an unfavorable prognosis and tends to metastasize to lung tissue. Although the CXCL12-CXCR4 axis appears to affect progression and metastasis in numerous tumors, its mechanism and downstream pathways in OS remain unclear. We used western blotting and flow cytometry to detect CXCR4 and CXCR7 expression in two OS cell lines (LM8 and Dunn). An MTT assay was used to evaluate the effects of CXCL12 and AMD3100, a specific CXCR4 antagonist, on cell viability. Flow cytometry was utilized to analyze changes in apoptosis induced by serum deprivation following treatment with CXCL12 and AMD3100. A Transwell assay was used to assess cell migration in response to CXCL12 and AMD3100. Western blotting was performed to identify the phosphorylation of signaling molecules (JNK, c-Jun, Akt, p38 and Erk1/2) and expression of caspase-3 and -8, and PARP. Mouse models were employed to evaluate AMD3100 inhibition of primary OS growth and lung metastasis in vivo. CXCR4 expression was detected in LM8 but not Dunn cells, and neither cell line expressed CXCR7. The addition of CXCL12 induced the survival and migration of serum-starved CXCR4+ LM8 cells activating JNK and Akt pathways, which were abrogated by adding AMD3100. However, similar results were not observed in CXCR4− Dunn cells. CXCL12 protected LM8, but not Dunn cells, from apoptosis induced by serum deprivation by suppressing PARP cleavage, which was partly reversed by AMD3100. In a mouse model, AMD3100 reduced primary tumor growth and lung metastasis compared with the controls. Thus, the CXCL12-CXCR4 axis regulated OS survival and metastasis through the JNK and Akt pathways, and blocking them with AMD3100 was found to be a potential OS treatment.
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Affiliation(s)
- Yu-Xin Liao
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Ze-Ze Fu
- Department of Orthopaedics, Shanghai First People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Cheng-Hao Zhou
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Lian-Cheng Shan
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Zhuo-Ying Wang
- Department of Orthopaedics, Shanghai First People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Fei Yin
- Department of Orthopaedics, Shanghai First People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, P.R. China
| | - Long-Po Zheng
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Ying-Qi Hua
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Zheng-Dong Cai
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
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Bai J, Ma M, Cai M, Xu F, Chen J, Wang G, Shuai X, Tao K. Inhibition enhancer of zeste homologue 2 promotes senescence and apoptosis induced by doxorubicin in p53 mutant gastric cancer cells. Cell Prolif 2014; 47:211-8. [PMID: 24738879 DOI: 10.1111/cpr.12103] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 01/17/2014] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVES Enhancer of zeste homologue 2 (EZH2) is crucially involved in epigenetic silencing by acting as a histone methyltransferase. Although EZH2 is overexpressed in many cancers and is involved in malignant cell proliferation and invasion, the role of EZH2 in senescence induced by DNA damage has up to now remained largely unknown. In this study, we sought to explore the outcome of EZH2 depletion along with exposure of doxorubicin (DOX), and related mechanisms, in gastric cancer cells. MATERIALS AND METHODS Here, senescence induced by DNA damage was achieved in gastric cancer cells by DOX treatment. EZH2 was downregulated by transfection with siRNA or treated with (-)-epigallocatechin-3-gallate, a targeted inhibitor. Senescence-associated β galactosidase (SA-β-gal) and formation of senescence-associated heterochromatin foci were used to identify cell senescence. To investigate effects of EZH2 depletion on the cell cycle, apoptosis and proliferation, flow cytometry and MTT analysis were employed. Changes in p53-p21 axis activation were detected by Western blotting. RESULTS We found that cell proliferative arrest caused by DOX could be promoted by EZH2 depletion. Mechanistically, EZH2 depletion not only worked in coordination with DNA damage during the progression of cell senescence but also promoted apoptosis in p53 mutant cells. However, it had no cooperative relationship with DOX in p53 wild-type cells. CONCLUSIONS These data help unravel a crucial role for EZH2 in senescence and apoptosis in gastric cancer cells and that p53 genomic status was associated with different cell responses to EZH2 silencing.
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Affiliation(s)
- J Bai
- Department of Gastrointestinal Surgery II, Wuhan Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, China
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