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Jin P, Zhao LS, Zhang TQ, Di H, Guo W. Establishment of a Mouse Model of Mycoplasma pneumoniae-Induced Plastic Bronchitis. Microorganisms 2024; 12:1132. [PMID: 38930514 PMCID: PMC11205551 DOI: 10.3390/microorganisms12061132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
Plastic bronchitis (PB) constitutes a life-threatening pulmonary disorder, predominantly attributed to Mycoplasma pneumoniae (MP) infection. The pathogenic mechanisms involved remain largely unexplored, leading to the absence of reliable approaches for early diagnosis and clear treatment. Thus, the present investigation aimed to develop an MP-induced mouse model of PB, thereby enhancing our understanding of this complex condition. In the first stage, healthy BALB/c mice were utilized to investigate the optimal methods for establishing PB. This involved the application of nebulization (15-20 min) and intratracheal administration (6-50 μL) with 2-chloroethyl ethyl sulfide (CEES) concentrations ranging from 4.5% to 7.5%. Subsequently, the MP model was induced by administering an MP solution (2 mL/kg/day, 108 CFU/50 μL) via the intranasal route for a duration of five consecutive days. Ultimately, suitable techniques were employed to induce plastic bronchitis in the MP model. Pathological changes in lung tissue were analyzed, and immunohistochemistry was employed to ascertain the expression levels of vascular endothelial growth factor receptor 3 (VEGFR-3) and the PI3K/AKT/mTOR signaling pathway. The administration of 4.5% CEES via a 6 µL trachea was the optimal approach to establishing a PB model. This method primarily induced neutrophilic inflammation and fibrinous exudate. The MP-infected group manifested symptoms indicative of respiratory infection, including erect hair, oral and nasal secretions, and a decrease in body weight. Furthermore, the pathological score of the MP+CEES group surpassed that of the groups treated with MP or CEES independently. Notably, the MP+CEES group demonstrated significant activation of the VEGFR-3 and PI3K/AKT/mTOR signaling pathways, implying a substantial involvement of lymphatic vessel impairment in this pathology. This study successfully established a mouse model of PB induced by MP using a two-step method. Lymphatic vessel impairment is a pivotal element in the pathogenetic mechanisms underlying this disease entity. This accomplishment will aid in further research into treatment methods for patients with PB caused by MP.
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Affiliation(s)
- Peng Jin
- Department of Respiratory Medicine, Tianjin University Children’s Hospital (Tianjin Children’s Hospital), Tianjin 300134, China; (P.J.)
- Clinical School of Pediatrics, Tianjin Medical University, Tianjin 300070, China
| | - Lin-Sheng Zhao
- Department of Respiratory Medicine, Tianjin University Children’s Hospital (Tianjin Children’s Hospital), Tianjin 300134, China; (P.J.)
| | - Tong-Qiang Zhang
- Department of Respiratory Medicine, Tianjin University Children’s Hospital (Tianjin Children’s Hospital), Tianjin 300134, China; (P.J.)
| | - Han Di
- Department of Respiratory Medicine, Tianjin University Children’s Hospital (Tianjin Children’s Hospital), Tianjin 300134, China; (P.J.)
- Clinical School of Pediatrics, Tianjin Medical University, Tianjin 300070, China
| | - Wei Guo
- Department of Respiratory Medicine, Tianjin University Children’s Hospital (Tianjin Children’s Hospital), Tianjin 300134, China; (P.J.)
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Guo X, He L, Xu W, Wang W, Feng X, Fu Y, Zhang X, Ding RB, Qi X, Bao J, Luo S. αO-Conotoxin GeXIVA[1,2] Suppresses In Vivo Tumor Growth of Triple-Negative Breast Cancer by Inhibiting AKT-mTOR, STAT3 and NF-κB Signaling Mediated Proliferation and Inducing Apoptosis. Mar Drugs 2024; 22:252. [PMID: 38921563 PMCID: PMC11205035 DOI: 10.3390/md22060252] [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: 04/09/2024] [Revised: 05/10/2024] [Accepted: 05/28/2024] [Indexed: 06/27/2024] Open
Abstract
Breast cancer is one of the leading causes of cancer mortality worldwide, and triple-negative breast cancer (TNBC) is the most problematic subtype. There is an urgent need to develop novel drug candidates for TNBC. Marine toxins are a valuable source for drug discovery. We previously identified αO-conotoxin GeXIVA[1,2] from Conus generalis, which is a selective antagonist of α9 nicotinic acetylcholine receptors (nAChRs). Recent studies indicated that α9 nAChR expression is positively correlated with breast cancer development; thus, α9 nAChR could serve as a therapeutic target for breast cancer. In this study, we aimed to investigate the in vivo antitumor effects of GeXIVA[1,2] on TNBC and to elucidate its underlying anticancer mechanism. Our data showed that GeXIVA[1,2] effectively suppressed 4T1 tumor growth in vivo at a very low dose of 0.1 nmol per mouse. Our results uncovered that the antitumor mechanism of GeXIVA[1,2] simultaneously induced apoptosis and blocked proliferation. Further investigations revealed that GeXIVA[1,2]-induced Caspase-3-dependent apoptosis was achieved through regulating Bax/Bcl-2 balance, and GeXIVA[1,2]-inhibited proliferation was mediated by the downregulation of the AKT-mTOR, STAT3 and NF-κB signaling pathways. Our study provides valuable arguments to demonstrate the potential of GeXIVA[1,2] as a novel marine-derived anticancer drug candidate for the treatment of TNBC.
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Affiliation(s)
- Xijun Guo
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Leping He
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Weifeng Xu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Wanrong Wang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Xiaoli Feng
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Yuanfeng Fu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Xiaofan Zhang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Ren-Bo Ding
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Xingzhu Qi
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Jiaolin Bao
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Sulan Luo
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
- Guangxi Key Laboratory of Special Biomedicine, School of Medicine, Guangxi University, Nanning 530004, China
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3
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Ardizzone A, Bova V, Casili G, Repici A, Lanza M, Giuffrida R, Colarossi C, Mare M, Cuzzocrea S, Esposito E, Paterniti I. Role of Basic Fibroblast Growth Factor in Cancer: Biological Activity, Targeted Therapies, and Prognostic Value. Cells 2023; 12:cells12071002. [PMID: 37048074 PMCID: PMC10093572 DOI: 10.3390/cells12071002] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Cancer is the leading cause of death worldwide; thus, it is necessary to find successful strategies. Several growth factors, such as vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF, FGF2), and transforming growth factor beta (TGF-β), are involved in the main processes that fuel tumor growth, i.e., cell proliferation, angiogenesis, and metastasis, by activating important signaling pathways, including PLC-γ/PI3/Ca2+ signaling, leading to PKC activation. Here, we focused on bFGF, which, when secreted by tumor cells, mediates several signal transductions and plays an influential role in tumor cells and in the development of chemoresistance. The biological mechanism of bFGF is shown by its interaction with its four receptor subtypes: fibroblast growth factor receptor (FGFR) 1, FGFR2, FGFR3, and FGFR4. The bFGF–FGFR interaction stimulates tumor cell proliferation and invasion, resulting in an upregulation of pro-inflammatory and anti-apoptotic tumor cell proteins. Considering the involvement of the bFGF/FGFR axis in oncogenesis, preclinical and clinical studies have been conducted to develop new therapeutic strategies, alone and/or in combination, aimed at intervening on the bFGF/FGFR axis. Therefore, this review aimed to comprehensively examine the biological mechanisms underlying bFGF in the tumor microenvironment, the different anticancer therapies currently available that target the FGFRs, and the prognostic value of bFGF.
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Affiliation(s)
- Alessio Ardizzone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Valentina Bova
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Giovanna Casili
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Alberto Repici
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Marika Lanza
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | | | - Cristina Colarossi
- Istituto Oncologico del Mediterraneo, Via Penninazzo 7, 95029 Viagrande, Italy
| | - Marzia Mare
- Istituto Oncologico del Mediterraneo, Via Penninazzo 7, 95029 Viagrande, Italy
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
| | - Emanuela Esposito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
- Correspondence: ; Tel.: +39-090-6765208
| | - Irene Paterniti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 98166 Messina, Italy
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Zhang Q, Gao Y, Zhang Y, Jing M, Wang D, Wang Y, Khattak S, Qi H, Cai C, Zhang J, Ngowi EE, Khan NH, Li T, Ji A, Jiang Q, Ji X, Li Y, Wu D. Cystathionine γ-lyase mediates cell proliferation, migration, and invasion of nasopharyngeal carcinoma. Oncogene 2022; 41:5238-5252. [PMID: 36310322 DOI: 10.1038/s41388-022-02512-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 12/14/2022]
Abstract
Nasopharyngeal carcinoma (NPC) is an epithelia-derived malignancy with a distinctive geographic distribution. Cystathionine γ-lyase (CSE) is involved in cancer development and progression. Nevertheless, the role of CSE in the growth of NPC is unknown. In this study, we found that CSE levels in human NPC cells were higher than those in normal nasopharyngeal cells. CSE overexpression enhanced the proliferative, migrative, and invasive abilities of NPC cells and CSE downregulation exerted reverse effects. Overexpression of CSE decreased the expressions of cytochrome C, cleaved caspase (cas)-3, cleaved cas-9, and cleaved poly-ADP-ribose polymerase, whereas CSE knockdown exhibited reverse effects. CSE overexpression decreased reactive oxygen species (ROS) levels and the expressions of phospho (p)-extracellular signal-regulated protein kinase 1/2, p-c-Jun N-terminal kinase, and p-p38, but promoted the expressions of p-phosphatidylinositol 3-kinase (PI3K), p-AKT, and p-mammalian target of rapamycin (mTOR), whereas CSE knockdown showed oppose effects. In addition, CSE overexpression promoted NPC xenograft tumor growth and CSE knockdown decreased tumor growth by modulating proliferation, angiogenesis, cell cycle, and apoptosis. Furthermore, DL-propargylglycine (an inhibitor of CSE) dose-dependently inhibited NPC cell growth via ROS-mediated mitogen-activated protein kinase (MAPK) and PI3K/AKT/mTOR pathways without significant toxicity. In conclusion, CSE could regulate the growth of NPC cells through ROS-mediated MAPK and PI3K/AKT/mTOR cascades. CSE might be a novel tumor marker for the diagnosis and prognosis of NPC. Novel donors/drugs that inhibit the expression/activity of CSE can be developed in the treatment of NPC.
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Affiliation(s)
- Qianqian Zhang
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Yingran Gao
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Yanxia Zhang
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Mirong Jing
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Di Wang
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Yizhen Wang
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Saadullah Khattak
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China.,School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Huiwen Qi
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Chunbo Cai
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Jing Zhang
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Ebenezeri Erasto Ngowi
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China.,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, 475004, China.,Department of Biological Sciences, Faculty of Science, Dar es Salaam University College of Education, Dar es Salaam, 2329, Tanzania
| | - Nazeer Hussain Khan
- Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China.,School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Tao Li
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Ailing Ji
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Qiying Jiang
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China
| | - Xinying Ji
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China. .,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China. .,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, 475004, China.
| | - Yanzhang Li
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China. .,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China.
| | - Dongdong Wu
- School of Basic Medical Sciences, Henan University, Kaifeng, Henan, 475004, China. .,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, Henan, 475004, China. .,School of Stomatology, Henan University, Kaifeng, Henan, 475004, China.
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Cystathionine β-Synthase Regulates the Proliferation, Migration, and Invasion of Thyroid Carcinoma Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8678363. [PMID: 35795862 PMCID: PMC9252770 DOI: 10.1155/2022/8678363] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/17/2022] [Accepted: 05/24/2022] [Indexed: 12/04/2022]
Abstract
Thyroid cancer is considered to be one of the most common endocrine tumors worldwide. Cystathionine β-synthase (CBS) plays a crucial role in the occurrence of several types of malignancies. And yet, the mechanism of action of CBS in the growth of thyroid carcinoma cells is still unrevealed. We found that CBS level in thyroid carcinoma tissue was higher than that in adjacent normal tissue. The overexpression of CBS enhanced the proliferation, migration, and invasion of thyroid cancer cells, while the downregulation of CBS exerted reverse effects. CBS overexpression reduced the levels of cleaved caspase-3 and cleaved poly ADP-ribose polymerase in thyroid cancer cells, whereas CBS knockdown showed reverse trends. CBS overexpression decreased reactive oxygen species (ROS) levels but increased the levels of Wnt3a and phosphorylations of phosphatidylinositol 3-kinase (PI3K), protein kinase B (PKB/AKT), mammalian target of rapamycin (mTOR), β-catenin, and glycogen synthase kinase-3 beta, while CBS knockdown exerted opposite effects. In addition, CBS overexpression promoted the growth of xenografted thyroid carcinoma, whereas CBS knockdown decreased the tumor growth by modulating angiogenesis, cell cycle, and apoptosis. Furthermore, aminooxyacetic acid (an inhibitor of CBS) dose-dependently inhibited thyroid carcinoma cell growth. CBS can regulate the proliferation, migration, and invasion of human thyroid cancer cells via ROS-mediated PI3K/AKT/mTOR and Wnt/β-catenin pathways. CBS can be a potential biomarker for diagnosing or prognosing thyroid carcinoma. Novel donors that inhibit the expression of CBS can be developed in the treatment of thyroid carcinoma.
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Epigallocatechin-3-Gallate Alleviates High-Fat Diet-Induced Nonalcoholic Fatty Liver Disease via Inhibition of Apoptosis and Promotion of Autophagy through the ROS/MAPK Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5599997. [PMID: 33953830 PMCID: PMC8068552 DOI: 10.1155/2021/5599997] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/22/2021] [Accepted: 03/28/2021] [Indexed: 12/18/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) represents one of the most common chronic liver diseases in the world. It has been reported that epigallocatechin-3-gallate (EGCG) plays important biological and pharmacological roles in mammalian cells. Nevertheless, the mechanism underlying the beneficial effect of EGCG on the progression of NAFLD has not been fully elucidated. In the present study, the mechanisms of action of EGCG on the growth, apoptosis, and autophagy were examined using oleic acid- (OA-) treated liver cells and the high-fat diet- (HFD-) induced NAFLD mouse model. Administration of EGCG promoted the growth of OA-treated liver cells. EGCG could reduce mitochondrial-dependent apoptosis and increase autophagy possibly via the reactive oxygen species- (ROS-) mediated mitogen-activated protein kinase (MAPK) pathway in OA-treated liver cells. In line with in vitro findings, our in vivo study verified that treatment with EGCG attenuated HFD-induced NAFLD through reduction of apoptosis and promotion of autophagy. EGCG can alleviate HFD-induced NAFLD possibly by decreasing apoptosis and increasing autophagy via the ROS/MAPK pathway. EGCG may be a promising agent for the treatment of NAFLD.
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Wu D, Zhong P, Wang Y, Zhang Q, Li J, Liu Z, Ji A, Li Y. Hydrogen Sulfide Attenuates High-Fat Diet-Induced Non-Alcoholic Fatty Liver Disease by Inhibiting Apoptosis and Promoting Autophagy via Reactive Oxygen Species/Phosphatidylinositol 3-Kinase/AKT/Mammalian Target of Rapamycin Signaling Pathway. Front Pharmacol 2020; 11:585860. [PMID: 33390956 PMCID: PMC7774297 DOI: 10.3389/fphar.2020.585860] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/29/2020] [Indexed: 12/12/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a common chronic liver disease worldwide. Hydrogen sulfide (H2S) is involved in a wide range of physiological and pathological processes. Nevertheless, the mechanism of action of H2S in NAFLD development has not been fully clarified. Here, the reduced level of H2S was observed in liver cells treated with oleic acid (OA). Administration of H2S increased the proliferation of OA-treated cells. The results showed that H2S decreased apoptosis and promoted autophagy through reactive oxygen species (ROS)-mediated phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) cascade in OA-treated cells. In addition, administration of H2S relieved high-fat diet (HFD)-induced NAFLD via inhibition of apoptosis and promotion of autophagy. These findings suggest that H2S could ameliorate HFD-induced NAFLD by regulating apoptosis and autophagy through ROS/PI3K/AKT/mTOR signaling pathway. Novel H2S-releasing donors may have therapeutic potential for the treatment of NAFLD.
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Affiliation(s)
- Dongdong Wu
- School of Basic Medical Sciences, Henan University, Kaifeng, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China.,School of Stomatology, Henan University, Kaifeng, China
| | - Peiyu Zhong
- School of Basic Medical Sciences, Henan University, Kaifeng, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China
| | - Yizhen Wang
- School of Basic Medical Sciences, Henan University, Kaifeng, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China
| | - Qianqian Zhang
- School of Basic Medical Sciences, Henan University, Kaifeng, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China
| | - Jianmei Li
- School of Basic Medical Sciences, Henan University, Kaifeng, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China
| | - Zhengguo Liu
- School of Basic Medical Sciences, Henan University, Kaifeng, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China
| | - Ailing Ji
- School of Basic Medical Sciences, Henan University, Kaifeng, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China
| | - Yanzhang Li
- School of Basic Medical Sciences, Henan University, Kaifeng, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan University, Kaifeng, China
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