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Selected Kefir Water from Malaysia Attenuates Hydrogen Peroxide-Induced Oxidative Stress by Upregulating Endogenous Antioxidant Levels in SH-SY5Y Neuroblastoma Cells. Antioxidants (Basel) 2021; 10:antiox10060940. [PMID: 34200854 PMCID: PMC8230435 DOI: 10.3390/antiox10060940] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/03/2021] [Accepted: 06/08/2021] [Indexed: 01/27/2023] Open
Abstract
Kefir, a fermented probiotic drink was tested for its potential anti-oxidative, anti-apoptotic, and neuroprotective effects to attenuate cellular oxidative stress on human SH-SY5Y neuroblastoma cells. Here, the antioxidant potentials of the six different kefir water samples were analysed by total phenolic content (TPC), total flavonoid content (TFC), ferric reducing antioxidant power (FRAP), and 2,2'-diphenyl-1-picrylhydrazyl radical (DPPH) assays, whereas the anti-apoptotic activity on hydrogen peroxide (H2O2) induced SH-SY5Y cells was examined using MTT, AO/PI double staining, and PI/Annexin V-FITC assays. The surface and internal morphological features of SH-SY5Y cells were studied using scanning and transmission electron microscopy. The results indicate that Kefir B showed the higher TPC (1.96 ± 0.54 µg GAE/µL), TFC (1.09 ± 0.02 µg CAT eq/µL), FRAP (19.68 ± 0.11 mM FRAP eq/50 µL), and DPPH (0.45 ± 0.06 mg/mL) activities compared to the other kefir samples. The MTT and PI/Annexin V-FITC assays showed that Kefir B pre-treatment at 10 mg/mL for 48 h resulted in greater cytoprotection (97.04%), and a significantly lower percentage of necrotic cells (7.79%), respectively. The Kefir B pre-treatment also resulted in greater protection to cytoplasmic and cytoskeleton inclusion, along with the conservation of the surface morphological features and the overall integrity of SH-SY5Y cells. Our findings indicate that the anti-oxidative, anti-apoptosis, and neuroprotective effects of kefir were mediated via the upregulation of SOD and catalase, as well as the modulation of apoptotic genes (Tp73, Bax, and Bcl-2).
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Hu Y, Guo Z, Lu J, Wang P, Sun S, Zhang Y, Li J, Zheng Q, Guo K, Wang J, Jiang J, Liu P. sFRP1 has a biphasic effect on doxorubicin-induced cardiotoxicity in a cellular location-dependent manner in NRCMs and Rats. Arch Toxicol 2018; 93:533-546. [PMID: 30377735 DOI: 10.1007/s00204-018-2342-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 10/23/2018] [Indexed: 12/22/2022]
Abstract
Doxorubicin (Dox) is an effective anticancer drug, however, its clinical application is restricted by the life-threatening cardiotoxic effects. Secreted Frizzled-related protein 1 (sFRP1) has been reported to participate in both the cancer and cardiovascular diseases and was one of the differential expression genes in normal hearts compared with Dox-treated hearts. Thus, it is important to reveal the potential role of sFRP1 in Dox-induced cardiotoxicity. Here, we show that sFRP1 has a biphasic effect on Dox-induced cardiotoxicity in a location-dependent manner. The secretion of sFRP1 was significantly increased in Dox-treated neonatal rat cardiomyocytes (NRCMs) (1 µM) and SD rats (5 mg/kg/injection at day 1, 5, and 9, i.p.). Adding the anti-sFRP1 antibody (0.5 µg/ml) and inhibiting sFRP1 secretion by caffeine (5 mM) both relieved Dox-induced cardiotoxicity through activating Wnt/β-catenin signaling, whereas increasing the secretion of sFRP1 by heparin (100 µg/ml) had the opposite effect. The intracellular level of sFRP1 was significantly decreased after Dox treatment both in vitro and in vivo. Knockdown of sFRP1 by sgRNA aggravated Dox-induced cardiotoxicity, while moderate overexpression of sFRP1 by Ad-sFRP1 exhibited protective effect. Besides, poly(ADP-ribosyl) polymerase-1 (PARP1) was screened as an interacting partner of sFRP1 in NRCMs by mass spectrometry. Our results suggested that the intracellular sFRP1 protected NRCMs from Dox-induced cardiotoxicity by interacting with PARP1. Thus, our results provide a novel evidence that sFRP1 has a biphasic effect on Dox-induced cardiotoxicity. In addition, the oversecretion of sFRP1 might be used as a biomarker to indicate the occurrence of cardiotoxicity induced by Dox treatment.
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Affiliation(s)
- Yuehuai Hu
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China
| | - Zhen Guo
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China
| | - Jing Lu
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China.
| | - Panxia Wang
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China
| | - Shuya Sun
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, People's Republic of China
| | - Yiqiang Zhang
- Division of Cardiology, Department of Medicine, Center for Cardiovascular Biology, Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Jingyan Li
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China
| | - Qiyao Zheng
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China
| | - Kaiteng Guo
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China
| | - Junjian Wang
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China
| | - Jianmin Jiang
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China.
| | - Peiqing Liu
- School of Pharmaceutical Sciences, Guangzhou Higher Education Mega Center, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou, 510006, People's Republic of China.
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Rui J, Fang S, Wang Y, Lv B, Yu B, Li S. Inhibition of microRNA‑16 protects mesenchymal stem cells against apoptosis. Mol Med Rep 2018; 18:902-910. [PMID: 29767235 PMCID: PMC6059722 DOI: 10.3892/mmr.2018.9012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 04/13/2018] [Indexed: 11/23/2022] Open
Abstract
Bone marrow-derived mesenchymal stem cells (BM-MSCs) have been used in experimental research and clinical trials for heart function restoration and cardiomyocyte regeneration. However, due to a hostile microenvironment created by ischemia, hypoxia and pro-inflammatory factors, the survival rate of implanted BM-MSCs remains low. Therefore, strategies that can promote BM-MSC survival and prevent apoptosis are required. Previous studies have reported that microRNA-16 (miR-16) can inhibit cell proliferation by targeting several proteins and signal pathway, not only by inducing apoptosis. In the present study, it was investigated whether inhibition of miR-16 reduced BM-MSC apoptosis in a model of ischemia. Flow cytometry analysis revealed that BM-MSCs underwent apoptosis in response to hypoxia/serum deprivation (SD). Additionally, in hypoxic/SD conditions, miR-16 expression increased and B-cell lymphoma (Bcl)-2 protein expression decreased in BM-MSCs. miR-16 did not affect Bcl-2 mRNA expression but downregulated Bcl-2 protein expression. miR-16 inhibitor transfection significantly increased Bcl-2 protein expression and the percentage of apoptotic BM-MSCs was reduced. The pro-apoptotic effects of miR-16 were partially elevated by knocking down of Bcl-2. Furthermore, it was demonstrated that miR-16 exerted its pro-apoptotic effects by activating the mitochondrial pathway of apoptosis via apoptotic protease activating factor-1/caspase-9/poly (ADP ribose) polymerase. Taken together, the results indicated that miR-16 downregulated Bcl-2 expression and promoted BM-MSC apoptosis, indicating that therapies targeting miR-16 may improve the effectiveness of BM-MSC transplantation therapy.
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Affiliation(s)
- Jiang Rui
- General Practice Department, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Shaohong Fang
- Key Laboratory of the Education Ministry for Myocardial Ischemia Mechanism and Treatment, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Yongchen Wang
- General Practice Department, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Bo Lv
- Key Laboratory of the Education Ministry for Myocardial Ischemia Mechanism and Treatment, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Bo Yu
- Key Laboratory of the Education Ministry for Myocardial Ischemia Mechanism and Treatment, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Shufeng Li
- Key Laboratory of the Education Ministry for Myocardial Ischemia Mechanism and Treatment, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
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Jaafaru MS, Nordin N, Shaari K, Rosli R, Abdull Razis AF. Isothiocyanate from Moringa oleifera seeds mitigates hydrogen peroxide-induced cytotoxicity and preserved morphological features of human neuronal cells. PLoS One 2018; 13:e0196403. [PMID: 29723199 PMCID: PMC5933767 DOI: 10.1371/journal.pone.0196403] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 04/12/2018] [Indexed: 01/12/2023] Open
Abstract
Reactive oxygen species are well known for induction of oxidative stress conditions through oxidation of vital biomarkers leading to cellular death via apoptosis and other process, thereby causing devastative effects on the host organs. This effect is believed to be linked with pathological alterations seen in several neurodegenerative disease conditions. Many phytochemical compounds proved to have robust antioxidant activities that deterred cells against cytotoxic stress environment, thus protect apoptotic cell death. In view of that we studied the potential of glucomoringin-isothiocyanate (GMG-ITC) or moringin to mitigate the process that lead to neurodegeneration in various ways. Neuroprotective effect of GMG-ITC was performed on retinoic acid (RA) induced differentiated neuroblastoma cells (SHSY5Y) via cell viability assay, flow cytometry analysis and fluorescence microscopy by means of acridine orange and propidium iodide double staining, to evaluate the anti-apoptotic activity and morphology conservation ability of the compound. Additionally, neurite surface integrity and ultrastructural analysis were carried out by means of scanning and transmission electron microscopy to assess the orientation of surface and internal features of the treated neuronal cells. GMG-ITC pre-treated neuron cells showed significant resistance to H2O2-induced apoptotic cell death, revealing high level of protection by the compound. Increase of intracellular oxidative stress induced by H2O2 was mitigated by GMG-ITC. Thus, pre-treatment with the compound conferred significant protection to cytoskeleton and cytoplasmic inclusion coupled with conservation of surface morphological features and general integrity of neuronal cells. Therefore, the collective findings in the presence study indicated the potentials of GMG-ITC to protect the integrity of neuron cells against induced oxidative-stress related cytotoxic processes, the hallmark of neurodegenerative diseases.
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Affiliation(s)
- Mohammed Sani Jaafaru
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
- Department of Biochemistry, Kaduna State University, Main Campus, Kaduna, Nigeria
| | - Norshariza Nordin
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Khozirah Shaari
- Laboratory of Natural Product, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Rozita Rosli
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Ahmad Faizal Abdull Razis
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
- * E-mail:
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Liu J, Sun Q, Wang Y, Cui J, Zhang M, Li L, Jia H, Zhang L, Zhu B, Jiang M, Yu B, Zhang S. ERK1/2 pathway regulates coxsackie and adenovirus receptor expression in mouse cardiac stem cells. Exp Ther Med 2017; 13:3348-3354. [PMID: 28587412 PMCID: PMC5450675 DOI: 10.3892/etm.2017.4414] [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: 07/22/2015] [Accepted: 10/10/2016] [Indexed: 11/05/2022] Open
Abstract
Cardiac stem cells (CSCs) are the most promising and effective candidates for the therapy of cardiac regenerative diseases; however, they have marked limitations. For instance, the implantation of CSCs is hampered by factors such as their sustainability and long-term durability. Gene modification appears to be the most effective method of optimizing CSCs and gene therapy trials have demonstrated that efficient gene transfer is key to achieving therapeutic efficacy. However, the transduction ability of adenovirus (Ad) is limited. Previous studies have reported that low expression of coxsackie and adenovirus receptor (CAR) in target cells decreases the transduction efficiency. A promising method for improving Ad-mediated gene transfer is to increase CAR expression in target cells. The present study investigated the effect of the Raf-mitogen-associated protein kinase (MAPK) kinase (MEK)-extracellular signal-associated protein kinase (ERK) signaling pathway on the expression of CAR on CSCs, as this pathway decreases cell-cell adhesion via cell surface molecules. The results demonstrated that interference with the Raf-MEK-ERK signaling pathway by knockdown of ERK1/2 upregulated the expression of CAR. The entry of the Ad into the cells was increased following inhibition of ERK1/2. Moreover, following knockdown of CAR, the entry of Ad into cells was decreased. However, knockdown of c-Jun N-terminal kinase and p38 as other components of the MAPK pathway did not affect CAR expression. Therefore, CAR expression in CSCs may be mediated via the Raf-MEK-ERK signaling pathway. Upregulation of CAR by knockdown of ERK1/2 may significantly improve Ad-mediated genetic modification of CSCs in the treatment of cardiovascular diseases.
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Affiliation(s)
- Jingjin Liu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China.,Key Laboratories of Education, Ministry for Myocardial Ischemia Mechanism and Treatment (Harbin Medical University), Ministry of Education, Harbin, Heilongjiang 150086, P.R. China
| | - Qiang Sun
- Department of Cardiology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei 066000, P.R. China
| | - Yongshun Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China.,Key Laboratories of Education, Ministry for Myocardial Ischemia Mechanism and Treatment (Harbin Medical University), Ministry of Education, Harbin, Heilongjiang 150086, P.R. China
| | - Jinjin Cui
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China.,Key Laboratories of Education, Ministry for Myocardial Ischemia Mechanism and Treatment (Harbin Medical University), Ministry of Education, Harbin, Heilongjiang 150086, P.R. China
| | - Maomao Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China.,Key Laboratories of Education, Ministry for Myocardial Ischemia Mechanism and Treatment (Harbin Medical University), Ministry of Education, Harbin, Heilongjiang 150086, P.R. China
| | - Lili Li
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Haibo Jia
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Lulu Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Bin Zhu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Miaomiao Jiang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China.,Key Laboratories of Education, Ministry for Myocardial Ischemia Mechanism and Treatment (Harbin Medical University), Ministry of Education, Harbin, Heilongjiang 150086, P.R. China
| | - Shuo Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
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Liu J, Wang Y, Cui J, Sun M, Pu Z, Wang C, Du W, Liu X, Wu J, Hou J, Zhang S, Yu B. miR199a-3p regulates P53 by targeting CABLES1 in mouse cardiac c-kit + cells to promote proliferation and inhibit apoptosis through a negative feedback loop. Stem Cell Res Ther 2017; 8:127. [PMID: 28583208 PMCID: PMC5460483 DOI: 10.1186/s13287-017-0515-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 02/09/2017] [Accepted: 02/21/2017] [Indexed: 01/08/2023] Open
Abstract
Background MicroRNAs (miRNAs) have emerged as crucial factors that regulate proliferation and apoptosis of cardiac c-kit+ cells. Although much is known about their role in maintaining cardiac c-kit+ cell pluripotency, the mechanisms by which they affect cell fate decisions that are an essential part of the repair of heart failure remain poorly understood. Methods Cardiac c-kit+ cells were obtained from Balb/c mice and cultured in vitro. Lentiviral vectors of miR199a-3p, its corresponding anti-miRNA, or short hairpin RNA against Cables1 were transfected into cells. The proliferation of cardiac c-kit+ cells was evaluated using EdU and flow cytometry. Furthermore, we examined cell apoptosis by flow cytometry under treatment with 200nM angiotensin II for 48 h. The levels of miR199a-3p and Cables1 mRNA were measured by quantitative real-time polymerase chain reaction (qRT-PCR). Western blot was performed to examine the expression of Cables1 and P53 proteins. Results We demonstrated a significantly decreased expression of miR199a-3p in heart failure samples compared with healthy donors. Meanwhile, we identified miR199a-3p as a proliferation- and apoptosis-associated regulator impacted through Cdk5 and Abl enzyme substrate 1 (CABLES1) targeting, and also attributed their repression to P53 protein expression. We further demonstrated that P53 induced miR199a-3p expression and, in turn, miR199-3p decreased P53 activity. Conclusion Collectively, our findings uncover one new mechanism by which P53 induced miR199a-3p expression and, in turn, miR199-3p decreased P53 activity. Therefore, miR199a-3p and P53 are coupled through CABLES1 and comprise a novel negative feedback loop that likely contributes to cardiac c-kit+ cell proliferation and apoptosis.
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Affiliation(s)
- Jingjin Liu
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China.,Key Laboratories of the Education Ministry for Myocardial Ischemia Mechanisms and Treatment, Harbin, Heilongjiang Province, China
| | - Yongshun Wang
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China
| | - Jinjin Cui
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China
| | - Meng Sun
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China.,Key Laboratories of the Education Ministry for Myocardial Ischemia Mechanisms and Treatment, Harbin, Heilongjiang Province, China
| | - Zhongyue Pu
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China.,Key Laboratories of the Education Ministry for Myocardial Ischemia Mechanisms and Treatment, Harbin, Heilongjiang Province, China
| | - Chao Wang
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China.,Key Laboratories of the Education Ministry for Myocardial Ischemia Mechanisms and Treatment, Harbin, Heilongjiang Province, China
| | - Wenjuan Du
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China.,Key Laboratories of the Education Ministry for Myocardial Ischemia Mechanisms and Treatment, Harbin, Heilongjiang Province, China
| | - Xinxin Liu
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China.,Key Laboratories of the Education Ministry for Myocardial Ischemia Mechanisms and Treatment, Harbin, Heilongjiang Province, China
| | - Jian Wu
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China
| | - Jingbo Hou
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China
| | - Shuo Zhang
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China
| | - Bo Yu
- Cardiology Department, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, 150086, China. .,Key Laboratories of the Education Ministry for Myocardial Ischemia Mechanisms and Treatment, Harbin, Heilongjiang Province, China.
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Yang X, Tang S, Dai C, Li D, Zhang S, Deng S, Zhou Y, Xiao X. Quinocetone induces mitochondrial apoptosis in HepG2 cells through ROS-dependent promotion of VDAC1 oligomerization and suppression of Wnt1/β-catenin signaling pathway. Food Chem Toxicol 2017; 105:161-176. [PMID: 28343033 DOI: 10.1016/j.fct.2017.03.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/12/2017] [Accepted: 03/22/2017] [Indexed: 12/26/2022]
Abstract
Quinocetone (QCT) has been used as an animal feed additive in China since 2003. However, investigations indicate that QCT has potential toxicity due to the fact that it shows cytotoxicity, genotoxicity, hepatotoxicity, nephrotoxicity and immunotoxicity in vitro and animal models. Although QCT-induced mitochondrial apoptosis has been established, the molecular mechanism remains unclear. This study was aimed to investigate the role of voltage-dependent anion channel 1 (VDAC1) oligomerization and Wnt/β-catenin pathway in QCT-induced mitochondrial apoptosis. The results showed VDAC inhibitor 4, 4-diisothiocyano stilbene-2, 2-disulfonic acid (DIDS) partly compromised QCT-induced cell viability decrease (from 34.1% to 68.5%) and mitochondrial apoptosis accompanied by abating VDAC1 oligomerization, cytochrome c (Cyt c) release and the expression levels of cleaved caspase-9, -3 and poly (ADP-ribose) polymerase (PARP). Meanwhile, overexpression VDAC1 exacerbated QCT-induced VDAC1 oligomerization and Cyt c release. In addition, lithium chloride (LiCl), an activator of Wnt/β-catenin pathway, markedly attenuated QCT-induced mitochondrial apoptosis by partly restoring the expression levels of Wnt1 and β-catenin. Finally, reactive oxygen species (ROS) scavenger N-acetyl-l-cysteine (NAC) obviously blocked QCT-induced VDAC1 oligomerization and the inhibition of Wnt1/β-catenin pathway. Taken together, our results reveal that QCT induces mitochondrial apoptosis by ROS-dependent promotion of VDAC1 oligomerization and suppression of Wnt1/β-catenin pathway.
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Affiliation(s)
- Xiayun Yang
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Beijing, Haidian District 100193, China
| | - Shusheng Tang
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Beijing, Haidian District 100193, China
| | - Chongshan Dai
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Beijing, Haidian District 100193, China
| | - Daowen Li
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Beijing, Haidian District 100193, China
| | - Shen Zhang
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Beijing, Haidian District 100193, China
| | - Sijun Deng
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Beijing, Haidian District 100193, China
| | - Yan Zhou
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Beijing, Haidian District 100193, China
| | - Xilong Xiao
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No. 2, Beijing, Haidian District 100193, China.
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8
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Dong N, Wang W, Tian J, Xie Z, Lv B, Dai J, Jiang R, Huang D, Fang S, Tian J, Li H, Yu B. MicroRNA-182 prevents vascular smooth muscle cell dedifferentiation via FGF9/PDGFRβ signaling. Int J Mol Med 2017; 39:791-798. [PMID: 28259995 PMCID: PMC5360430 DOI: 10.3892/ijmm.2017.2905] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 01/20/2017] [Indexed: 11/06/2022] Open
Abstract
The abnormal phenotypic transformation of vascular smooth muscle cells (SMCs) causes various proliferative vascular diseases. MicroRNAs (miRNAs or miRs) have been established to play important roles in SMC biology and phenotypic modulation. This study revealed that the expression of miR‑182 was markedly altered during rat vascular SMC phenotypic transformation in vitro. We aimed to investigate the role of miR‑182 in the vascular SMC phenotypic switch and to determine the potential molecular mechanisms involved. The expression of miR‑182 gene was significantly downregulated in cultured SMCs during dedifferentiation from a contractile to a synthetic phenotype. Conversely, the upregulation of miR‑182 increased the expression of SMC-specific contractile genes, such as α-smooth muscle actin, smooth muscle 22α and calponin. Additionally, miR‑182 overexpression potently inhibited SMC proliferation and migration under both basal conditions and under platelet-derived growth factor-BB stimulation. Furthermore, we identified fibroblast growth factor 9 (FGF9) as the target gene of miR‑182 for the phenotypic modulation of SMCs mediated through platelet-derived growth factor receptor β (PDGFRβ) signaling. These data suggest that miR‑182 may be a novel SMC phenotypic marker and a modulator that may be used to prevent SMC dedifferentiation via FGF9/PDGFRβ signaling.
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Affiliation(s)
- Nana Dong
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Wei Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Jinwei Tian
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Zulong Xie
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Bo Lv
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Jiannan Dai
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Rui Jiang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Dan Huang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Shaohong Fang
- Key Laboratory of Myocardial Ischemia, Ministry of Education, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Jiangtian Tian
- Key Laboratory of Myocardial Ischemia, Ministry of Education, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Hulun Li
- Key Laboratory of Myocardial Ischemia, Ministry of Education, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
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9
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Is Hydrogen Peroxide a Suitable Apoptosis Inducer for All Cell Types? BIOMED RESEARCH INTERNATIONAL 2016; 2016:7343965. [PMID: 27595106 PMCID: PMC4993923 DOI: 10.1155/2016/7343965] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 07/11/2016] [Indexed: 11/17/2022]
Abstract
Hydrogen peroxide is currently the most widely used apoptosis inducer due to its broad cytotoxic efficacy against nearly all cell types. However, equivalent cytotoxicity is achieved over a wide range of doses, although the reasons for this differential sensitivity are not always clear. In this study, three kinds of cells, the 293T cell line, primary fibroblasts, and terminally differentiated myocardial cells, were treated with a wide range of H2O2 doses. Times to apoptosis initiation and end were measured cytochemically and the changes in expression of caspase-9, P53, NF-κB, and RIP were determined by RT-PCR. The 293T cell line was the most sensitive to H2O2, undergoing necroptosis and/or apoptosis at all concentrations from 0.1 to 1.6 mM. At > 0.4 mM, H2O2 also caused necroptosis in primary cells. At < 0.4 mM, however, primary cells exhibited classic signs of apoptosis, although they tended to survive for 36 hours in < 0.2 mM H2O2. Thus, H2O2 is a broadly effective apoptosis inducer, but the dose range differs by cell type. For cell lines, a low dose is required and the exposure time must be reduced compared to primary cells to avoid cell death primarily by necroptosis or necrosis.
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10
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Cui J, Zhang F, Wang Y, Liu J, Ming X, Hou J, Lv B, Fang S, Yu B. Macrophage migration inhibitory factor promotes cardiac stem cell proliferation and endothelial differentiation through the activation of the PI3K/Akt/mTOR and AMPK pathways. Int J Mol Med 2016; 37:1299-309. [PMID: 27035848 PMCID: PMC4829139 DOI: 10.3892/ijmm.2016.2542] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 03/16/2016] [Indexed: 01/05/2023] Open
Abstract
Macrophage migration inhibitory factor (MIF) has pleiotropic immune functions in a number of inflammatory diseases. Recent evidence from expression and functional studies has indicated that MIF is involved in various aspects of cardiovascular disease. In this study, we aimed to determine whether MIF supports in vitro c-kit+CD45− cardiac stem cell (CSC) survival, proliferation and differentiation into endothelial cells, as well as the possible mechanisms involved. We observed MIF receptor (CD74) expression in mouse CSCs (mCSCs) using PCR and immunofluorescence staining, and MIF secretion by mCSCs using PCR and ELISA in vitro. Increasing amounts of exogenous MIF did not affect CD74 expression, but promoted mCSC survival, proliferation and endothelial differentiation. By contrast, treatment with an MIF inhibitor (ISO-1) or siRNA targeting CD74 (CD74-siRNA) suppressed the biological changes induced by MIF in the mCSCs. Increasing amounts of MIF increased the phosphorylation of Akt and mammalian target of rapamycin (mTOR), which are known to support cell survival, proliferation and differentiation. These effects of MIF on the mCSCs were abolished by LY294002 [a phosphoinositide 3-kinase (PI3K) inhibitor] and MK-2206 (an Akt inhibitor). Moreover, adenosine monophosphate-activated protein kinase (AMPK) phosphorylation increased following treatment with MIF. The AMPK inhibitor, compound C, partly blocked the pro-proliferative effects of MIF on the mCSCs. In conclusion, our results suggest that MIF promotes mCSC survival, proliferation and endothelial differentiation through the activation of the PI3K/Akt/mTOR and AMPK signaling pathways. Thus, MIF may prove to be a potential therapeutic factor in the treatment of heart failure and myocardial infarction by activating CSCs.
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Affiliation(s)
- Jinjin Cui
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Fengyun Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Yongshun Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Jingjin Liu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Xing Ming
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Jingbo Hou
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Bo Lv
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Shaohong Fang
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, Heilongjiang 150081, P.R. China
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
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11
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MiR218 Modulates Wnt Signaling in Mouse Cardiac Stem Cells by Promoting Proliferation and Inhibiting Differentiation through a Positive Feedback Loop. Sci Rep 2016; 6:20968. [PMID: 26860887 PMCID: PMC4748271 DOI: 10.1038/srep20968] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 01/14/2016] [Indexed: 12/31/2022] Open
Abstract
MiRNA expression was determined in both proliferating and differentiated cardiac stem cells (CSCs) through a comprehensive miRNA microarray analysis. We selected miR218 for functional follow-up studies to examine its significance in CSCs. First, we observed that the expression of miR218 was altered in CSCs during differentiation into cardiomyocytes, and transfection of an miR218 mimic or miR218 inhibitor affected the myocardial differentiation of CSCs. Furthermore, we observed that a negative regulator of Wnt signaling, sFRP2, was a direct target of miR218, and the protein levels of sFRP2 were increased in cells transfected with the synthetic miR218 inhibitor. In contrast, transfection with the miR218 mimic decreased the expression of sFRP2 and potentiated Wnt signaling. The subsequent down-regulation of sFRP2 by shRNA potentiated Wnt signaling, contributing to a gene expression program that is important for CSC proliferation and cardiac differentiation. Specifically, canonical Wnt signaling induced miR218 transcription. Thus, miR218 and Wnt signaling were coupled through a feed-forward positive feedback loop, forming a biological regulatory circuit. Together, these results provide the first evidence that miR218 plays an important role in CSC proliferation and differentiation through the canonical Wnt signaling pathway.
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12
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Wang Y, Wan M, Zhou Q, Wang H, Wang Z, Zhong X, Zhang L, Tai S, Cui Y. The Prognostic Role of SOCS3 and A20 in Human Cholangiocarcinoma. PLoS One 2015; 10:e0141165. [PMID: 26485275 PMCID: PMC4612779 DOI: 10.1371/journal.pone.0141165] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 10/04/2015] [Indexed: 12/18/2022] Open
Abstract
As an antagonist of the JAK/STAT pathway, suppressor of cytokine signaling 3 (SOCS3) plays an integral role in shaping the inflammatory environment, tumorigenesis and disease progression in cholangiocarcinoma (CCA); however, its prognostic significance remains unclear. Although tumor necrosis factor α-induced protein 3 (TNFAIP3, also known as A20) can decrease SOCS3 expression and is involved in the regulation of tumorigenesis in certain malignancies, its role in CCA remains unknown. In this study, we investigated the expression of SOCS3 and A20 in human CCA tissues to assess the prognostic significance of these proteins. The expression of SOCS3 and A20 was initially detected by western blot in 22 cases of freshly frozen CCA tumors with corresponding peritumoral tissues and 22 control normal bile duct tissues. Then, these proteins were investigated in 86 CCA patients by immunohistochemistry (IHC) and were evaluated for their association with clinicopathological parameters in human CCA. The results indicated that SOCS3 expression was significantly lower in CCA tumor tissues than in corresponding peritumoral biliary tissues and normal bile duct tissues. Conversely, A20 was overexpressed in CCA tissues. Thus, an inverse correlation between the expression of SOCS3 and A20 was discovered. Furthermore, patients with low SOCS3 expression or high A20 expression showed a dramatically lower overall survival rate. These proteins were both associated with CCA lymph node metastasis, postoperative recurrence and overall survival rate. However, only A20 showed a significant association with the tumor node metastasis (TNM) stage, while SOCS3 showed a significant association with tumor differentiation. Multivariate Cox analysis revealed that SOCS3 and A20 were independent prognostic indicators for overall survival in CCA. Thus, our study demonstrated that SOCS3 and A20 represent novel prognostic factors for human CCA.
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MESH Headings
- Adenocarcinoma/metabolism
- Adenocarcinoma/mortality
- Adenocarcinoma/secondary
- Adenocarcinoma/therapy
- Adenocarcinoma, Mucinous/metabolism
- Adenocarcinoma, Mucinous/mortality
- Adenocarcinoma, Mucinous/secondary
- Adenocarcinoma, Mucinous/therapy
- Adenocarcinoma, Papillary/metabolism
- Adenocarcinoma, Papillary/mortality
- Adenocarcinoma, Papillary/secondary
- Adenocarcinoma, Papillary/therapy
- Adult
- Aged
- Aged, 80 and over
- Bile Duct Neoplasms/metabolism
- Bile Duct Neoplasms/mortality
- Bile Duct Neoplasms/pathology
- Bile Duct Neoplasms/therapy
- Bile Ducts, Intrahepatic/metabolism
- Bile Ducts, Intrahepatic/pathology
- Biomarkers, Tumor/metabolism
- Blotting, Western
- Cholangiocarcinoma/metabolism
- Cholangiocarcinoma/mortality
- Cholangiocarcinoma/pathology
- Cholangiocarcinoma/therapy
- Combined Modality Therapy
- DNA-Binding Proteins/metabolism
- Female
- Follow-Up Studies
- Humans
- Immunoenzyme Techniques
- Intracellular Signaling Peptides and Proteins/metabolism
- Lymphatic Metastasis
- Male
- Middle Aged
- Neoplasm Recurrence, Local/metabolism
- Neoplasm Recurrence, Local/mortality
- Neoplasm Recurrence, Local/pathology
- Neoplasm Recurrence, Local/therapy
- Neoplasm Staging
- Nuclear Proteins/metabolism
- Prognosis
- Retrospective Studies
- Suppressor of Cytokine Signaling 3 Protein
- Suppressor of Cytokine Signaling Proteins/metabolism
- Survival Rate
- Tumor Necrosis Factor alpha-Induced Protein 3
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Affiliation(s)
- Yimin Wang
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China
- Key Laboratory of Myocardial Ischemia Mechanism and Treatment Ministry of Education, Harbin, Heilongjiang, P. R. China
| | - Ming Wan
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China
| | - Qingxin Zhou
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China
| | - Hao Wang
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China
| | - Zhidong Wang
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China
| | - Xiangyu Zhong
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China
| | - Lei Zhang
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China
| | - Sheng Tai
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China
| | - Yunfu Cui
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China
- * E-mail:
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13
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Kook SH, Lee D, Cho ES, Heo JS, Poudel SB, Ahn YH, Hwang JW, Ji H, Kim JG, Lee JC. Activation of canonical Wnt/β-catenin signaling inhibits H2O2-induced decreases in proliferation and differentiation of human periodontal ligament fibroblasts. Mol Cell Biochem 2015; 411:83-94. [PMID: 26369531 DOI: 10.1007/s11010-015-2570-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 09/04/2015] [Indexed: 12/13/2022]
Abstract
Human periodontal ligament fibroblasts (hPLFs) are exposed to oxidative stress during periodontal inflammation and dental treatments. It is hypothesized that hydrogen peroxide (H2O2)-mediated oxidative stress decreases survival and osteogenic differentiation of hPLFs, whereas these decreases are prevented by activation of the Wnt pathway. However, there has been a lack of reports that define the exact roles of canonical Wnt/β-catenin signaling in H2O2-exposed hPLFs. Treatment with H2O2 reduced viability and proliferation in hPLFs in a dose- and time-dependent manner and led to mitochondria-mediated apoptosis. Pretreatment with lithium chloride (LiCl) or Wnt1 inhibited the oxidative damage that occurred in H2O2-exposed hPLFs. However, knockout of β-catenin or treatment with DKK1 facilitated the H2O2-induced decreases in viability, mitochondrial membrane potential, and Bcl-2 induction. Osteoblastic differentiation of hPLFs was also inhibited by combined treatment with 100 μM H2O2, as evidenced by the decreases in alkaline phosphatase (ALP) activity and mineralization. H2O2-mediated inhibition of osteoblast differentiation in hPLFs was significantly attenuated in the presence of 500 ng/ml Wnt1 or 20 mM LiCl. In particular, H2O2 stimulated the expression of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) at protein and mRNA levels in hPLFs, whereas the induction was almost completely suppressed in the presence of Wnt1 or LiCl. Furthermore, siRNA-mediated silencing of Nrf2 blocked H2O2-induced decreases in ALP activity and mineralization of hPLFs with the concomitant restoration of runt-related transcription factor 2 and osteocalcin mRNA expression and ALP activity. Collectively, these results suggest that activation of the Wnt/β-catenin pathway improves proliferation and mineralization in H2O2-exposed hPLFs by downregulating Nrf2.
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Affiliation(s)
- Sung-Ho Kook
- Cluster for Craniofacial Development & Regeneration Research, Chonbuk National University, Jeonju, 561-756, South Korea.,Department of Bioactive Material Sciences, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 561-756, South Korea
| | - Daewoo Lee
- Department of Bioactive Material Sciences, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 561-756, South Korea
| | - Eui-Sic Cho
- Cluster for Craniofacial Development & Regeneration Research, Chonbuk National University, Jeonju, 561-756, South Korea.,Department of Bioactive Material Sciences, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 561-756, South Korea
| | - Jung Sun Heo
- Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul, 130-701, South Korea
| | - Sher Bahadur Poudel
- Cluster for Craniofacial Development & Regeneration Research, Chonbuk National University, Jeonju, 561-756, South Korea.,Department of Bioactive Material Sciences, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 561-756, South Korea
| | - Yu-Hyeon Ahn
- Cluster for Craniofacial Development & Regeneration Research, Chonbuk National University, Jeonju, 561-756, South Korea.,Department of Bioactive Material Sciences, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 561-756, South Korea
| | - Jae-Won Hwang
- Cluster for Craniofacial Development & Regeneration Research, Chonbuk National University, Jeonju, 561-756, South Korea.,Department of Bioactive Material Sciences, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 561-756, South Korea
| | - Hyeok Ji
- Department of Bioactive Material Sciences, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 561-756, South Korea
| | - Jong-Ghee Kim
- Department of Bioactive Material Sciences, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 561-756, South Korea
| | - Jeong-Chae Lee
- Cluster for Craniofacial Development & Regeneration Research, Chonbuk National University, Jeonju, 561-756, South Korea. .,Department of Bioactive Material Sciences, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 561-756, South Korea.
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14
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Kook SH, Heo JS, Lee JC. Crucial roles of canonical Runx2-dependent pathway on Wnt1-induced osteoblastic differentiation of human periodontal ligament fibroblasts. Mol Cell Biochem 2015; 402:213-23. [DOI: 10.1007/s11010-015-2329-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 01/16/2015] [Indexed: 10/24/2022]
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15
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Miao P, Yin J, Ning L, Li X. Peptide-based electrochemical approach for apoptosis evaluation. Biosens Bioelectron 2014; 62:97-101. [DOI: 10.1016/j.bios.2014.06.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 06/06/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
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16
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Hydrogen peroxide inhibits proliferation and endothelial differentiation of bone marrow stem cells partially via reactive oxygen species generation. Life Sci 2014; 112:33-40. [DOI: 10.1016/j.lfs.2014.07.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 07/03/2014] [Accepted: 07/09/2014] [Indexed: 12/11/2022]
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17
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Pagliari S, Jelinek J, Grassi G, Forte G. Targeting pleiotropic signaling pathways to control adult cardiac stem cell fate and function. Front Physiol 2014; 5:219. [PMID: 25071583 PMCID: PMC4076671 DOI: 10.3389/fphys.2014.00219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 05/26/2014] [Indexed: 11/13/2022] Open
Abstract
The identification of different pools of cardiac progenitor cells resident in the adult mammalian heart opened a new era in heart regeneration as a means to restore the loss of functional cardiac tissue and overcome the limited availability of donor organs. Indeed, resident stem cells are believed to participate to tissue homeostasis and renewal in healthy and damaged myocardium although their actual contribution to these processes remain unclear. The poor outcome in terms of cardiac regeneration following tissue damage point out at the need for a deeper understanding of the molecular mechanisms controlling CPC behavior and fate determination before new therapeutic strategies can be developed. The regulation of cardiac resident stem cell fate and function is likely to result from the interplay between pleiotropic signaling pathways as well as tissue- and cell-specific regulators. Such a modular interaction—which has already been described in the nucleus of a number of different cells where transcriptional complexes form to activate specific gene programs—would account for the unique responses of cardiac progenitors to general and tissue-specific stimuli. The study of the molecular determinants involved in cardiac stem/progenitor cell regulatory mechanisms may shed light on the processes of cardiac homeostasis in health and disease and thus provide clues on the actual feasibility of cardiac cell therapy through tissue-specific progenitors.
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Affiliation(s)
- Stefania Pagliari
- Integrated Center for Cell Therapy and Regenerative Medicine (ICCT), International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic
| | - Jakub Jelinek
- Integrated Center for Cell Therapy and Regenerative Medicine (ICCT), International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic
| | - Gabriele Grassi
- Department of Life Sciences, University of Trieste Trieste, Italy
| | - Giancarlo Forte
- Integrated Center for Cell Therapy and Regenerative Medicine (ICCT), International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic
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18
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Koraishy FM, Silva C, Mason S, Wu D, Cantley LG. Hepatocyte growth factor (Hgf) stimulates low density lipoprotein receptor-related protein (Lrp) 5/6 phosphorylation and promotes canonical Wnt signaling. J Biol Chem 2014; 289:14341-50. [PMID: 24692544 DOI: 10.1074/jbc.m114.563213] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
While Wnt and Hgf signaling pathways are known to regulate epithelial cell responses during injury and repair, whether they exhibit functional cross-talk is not well defined. Canonical Wnt signaling is initiated by the phosphorylation of the Lrp5/6 co-receptors. In the current study we demonstrate that Hgf stimulates Met and Gsk3-dependent and Wnt-independent phosphorylation of Lrp5/6 at three separate activation motifs in subconfluent, de-differentiated renal epithelial cells. Hgf treatment stimulates the selective association of active Gsk3 with Lrp5/6. In contrast, Akt-phosphorylated inactive Gsk3 is excluded from this association. Hgf stimulates β-catenin stabilization and nuclear accumulation and protects against epithelial cell apoptosis in an Lrp5/6-dependent fashion. In vivo, the increase in Lrp5/6 phosphorylation and β-catenin stabilization in the first 6-24 h after renal ischemic injury was significantly reduced in mice lacking Met receptor in the renal proximal tubule. Our results thus identify Hgf as an important transactivator of canonical Wnt signaling that is mediated by Met-stimulated, Gsk3-dependent Lrp5/6 phosphorylation.
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Affiliation(s)
| | - Cynthia Silva
- the Section of Pediatric Nephrology, Connecticut Children's Medical Center, Hartford, Connecticut 06106
| | - Sherene Mason
- the Section of Pediatric Nephrology, Connecticut Children's Medical Center, Hartford, Connecticut 06106
| | - Dianqing Wu
- the Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut 06510 and
| | - Lloyd G Cantley
- From the Section of Nephrology, Department of Internal Medicine and
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