1
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Lv F, Li X, Wang Y, Hao L. MAGP1 maintains tumorigenicity and angiogenesis of laryngeal cancer by activating Wnt/β-catenin/MMP7 pathway. Carcinogenesis 2024; 45:220-234. [PMID: 36645203 DOI: 10.1093/carcin/bgad003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/17/2022] [Accepted: 01/16/2023] [Indexed: 01/17/2023] Open
Abstract
Microfibril-associated glycoprotein-1 (MAGP1), a crucial extracellular matrix protein, contributes to the initiation and progression of different cancers. However, the role of MAGP1 in laryngeal cancer is not clear. The purpose of this study was to investigate the clinical significance and biological function of MAGP1 in laryngeal cancer. MAGP1 was upregulated in public databases and laryngeal cancer tissues, and high MAGP1 expression led to a poor prognosis and was identified as an independent prognostic marker. Knocking-down MAGP1 inhibited laryngeal cancer cell growth and metastasis. According to gene set enrichment analysis, high MAGP1 expression revealed enrichment in Wnt/β-catenin signaling and knocking-down MAGP1 in laryngeal cancer cells also caused degradation, de-activation, re-location and loss of stability of β-catenin. Additionally, we observed MAGP1 in laryngeal cancer cells inhibits angiogenesis in an MMP7-dependent way. In conclusion, our study suggests a clinical role of MAGP1 in laryngeal cancer, signifying its potential as a therapeutic target in the future.
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Affiliation(s)
- Fei Lv
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xiaoqi Li
- Oncology Department III, People's Hospital of Liaoning Province, Shenyang, Liaoning, China
| | - Ying Wang
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Liying Hao
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, Liaoning, China
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2
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He K, Wang X, Li T, Li Y, Ma L. Chlorogenic Acid Attenuates Isoproterenol Hydrochloride-Induced Cardiac Hypertrophy in AC16 Cells by Inhibiting the Wnt/β-Catenin Signaling Pathway. Molecules 2024; 29:760. [PMID: 38398512 PMCID: PMC10892528 DOI: 10.3390/molecules29040760] [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: 01/03/2024] [Revised: 01/29/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Cardiac hypertrophy (CH) is an important characteristic in heart failure development. Chlorogenic acid (CGA), a crucial bioactive compound from honeysuckle, is reported to protect against CH. However, its underlying mechanism of action remains incompletely elucidated. Therefore, this study aimed to explore the mechanism underlying the protective effect of CGA on CH. This study established a CH model by stimulating AC16 cells with isoproterenol (Iso). The observed significant decrease in cell surface area, evaluated through fluorescence staining, along with the downregulation of CH-related markers, including atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), and β-myosin heavy chain (β-MHC) at both mRNA and protein levels, provide compelling evidence of the protective effect of CGA against isoproterenol-induced CH. Mechanistically, CGA induced the expression of glycogen synthase kinase 3β (GSK-3β) while concurrently attenuating the expression of the core protein β-catenin in the Wnt/β-catenin signaling pathway. Furthermore, the experiment utilized the Wnt signaling activator IM-12 to observe its ability to modulate the impact of CGA pretreatment on the development of CH. Using the Gene Expression Omnibus (GEO) database combined with online platforms and tools, this study identified Wnt-related genes influenced by CGA in hypertrophic cardiomyopathy (HCM) and further validated the correlation between CGA and the Wnt/β-catenin signaling pathway in CH. This result provides new insights into the molecular mechanisms underlying the protective effect of CGA against CH, indicating CGA as a promising candidate for the prevention and treatment of heart diseases.
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Affiliation(s)
- Kai He
- Graduate School, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; (K.H.); (X.W.)
- College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China;
| | - Xiaoying Wang
- Graduate School, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; (K.H.); (X.W.)
- College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China;
| | - Tingting Li
- College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China;
| | - Yanfei Li
- Graduate School, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; (K.H.); (X.W.)
- College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China;
| | - Linlin Ma
- Graduate School, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; (K.H.); (X.W.)
- College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China;
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3
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Taheri E, Jafarpour F. Developing a straightforward route toward the synthesis of arylaminomaleimides by palladium-catalyzed arylation of one-pot synthesized aminomaleimides. Org Biomol Chem 2023; 22:169-174. [PMID: 38051284 DOI: 10.1039/d3ob01765f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
3-Aryl-4-aminomaleimides have well-demonstrated applications, such as being used as fluorophores and inhibitors. However, their previous synthesis methods have involved tedious multi-step procedures or methods that need pre-functionalized maleimides and toxic or unstable reagents. Here, a feasible method is developed to synthesize these useful compounds. This includes the one-pot preparation of 3-aminomaleimides, followed by their direct arylation through a palladium-catalyzed Heck reaction with various aryl iodides regioselectively at the β-position of their amine substituents. The results show that this method efficiently exhibits a broad scope.
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Affiliation(s)
- Elmira Taheri
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran.
| | - Farnaz Jafarpour
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran.
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4
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Li C, He J, Meng F, Wang F, Sun H, Zhang H, Dong L, Zhang M, Xu Q, Liang L, Li Y, Yang T, He M, Wang T, Lin J, Sun J, Huang Q, Guo L, Zhang X, Mai S, Zheng H. Nuclear localization of TET2 requires β-catenin activation and correlates with favourable prognosis in colorectal cancer. Cell Death Dis 2023; 14:552. [PMID: 37620362 PMCID: PMC10449923 DOI: 10.1038/s41419-023-06038-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/20/2023] [Accepted: 08/02/2023] [Indexed: 08/26/2023]
Abstract
Mutation-induced malfunction of ten-eleven translocation methylcytosine dioxygenase 2 (TET2) is widely reported in haematological malignancies. However, the role of TET2 in solid cancers, including colorectal cancer (CRC), is unclear. Here, we found that TET2 malfunction in CRC is mostly due to decreased nuclear localization and that nuclear localization of TET2 is correlated with better survival of patients. To explore the underlying mechanisms, 14 immortalized solid tumour cell lines and 12 primary CRC cell lines were used. TET2 was mostly detected in the nucleus, and it induced significant DNA demethylation and suppressed cell growth by demethylating RORA and SPARC in cell lines like SW480. While in cell lines like SW620, TET2 was observed in the cytosol and did not affect DNA methylation or cell growth. Further examination with immunoprecipitation-mass spectrometry illustrated that β-catenin activation was indispensable for the nuclear localization and tumour suppression effects of TET2. In addition, the β-catenin pathway activator IM12 and the TET2 activator vitamin C were used simultaneously to enhance the effects of TET2 under low-expression conditions, and synergistic inhibitory effects on the growth of cancer were observed both in vitro and in vivo. Collectively, these data suggest that β-catenin-mediated nuclear localization of TET2 is an important therapeutic target for solid tumours.
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Affiliation(s)
- Changpeng Li
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China.
| | - Jingcai He
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510799, China
| | - Fei Meng
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Fuhui Wang
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hao Sun
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
| | - Huizhong Zhang
- Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Linna Dong
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mengdan Zhang
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiaoran Xu
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lining Liang
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
| | - Yuan Li
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Tingting Yang
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Meiai He
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tao Wang
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiechun Lin
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Jiaqi Sun
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, 510700, China
| | - Qiuling Huang
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Lin Guo
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
| | - Xiaofei Zhang
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Shijuan Mai
- Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.
| | - Hui Zheng
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
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5
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BF 3-OEt 2 Catalyzed C3-Alkylation of Indole: Synthesis of Indolylsuccinimidesand Their Cytotoxicity Studies. Molecules 2021; 26:molecules26082202. [PMID: 33920456 PMCID: PMC8069703 DOI: 10.3390/molecules26082202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/27/2021] [Accepted: 04/02/2021] [Indexed: 11/17/2022] Open
Abstract
A simple and efficient BF3-OEt2 promoted C3-alkylation of indole has been developed to obtain3-indolylsuccinimidesfrom commercially available indoles and maleimides, with excellent yields under mild reaction conditions. Furthermore, anti-proliferative activity of these conjugates was evaluated against HT-29 (Colorectal), Hepg2 (Liver) and A549 (Lung) human cancer cell lines. One of the compounds, 3w, having N,N-Dimethylatedindolylsuccinimide is a potent congener amongst the series with IC50 value 0.02 µM and 0.8 µM against HT-29 and Hepg2 cell lines, respectively, and compound 3i was most active amongst the series with IC50 value 1.5 µM against A549 cells. Molecular docking study and mechanism of reaction have briefly beendiscussed. This method is better than previous reports in view of yield and substrate scope including electron deficient indoles.
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6
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Schille JT, Nolte I, Beck J, Jilani D, Roolf C, Pews-Davtyan A, Rolfs A, Henze L, Beller M, Brenig B, Junghanss C, Schütz E, Murua Escobar H. PDA Indolylmaleimides Induce Anti-Tumor Effects in Prostate Carcinoma Cell Lines Through Mitotic Death. Front Vet Sci 2021; 7:558135. [PMID: 33553272 PMCID: PMC7855975 DOI: 10.3389/fvets.2020.558135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 12/11/2020] [Indexed: 12/24/2022] Open
Abstract
Castrate resistant prostate cancer in men shares several characteristics with canine prostate cancer (PCa). Due to current insufficient therapies, evaluating novel therapeutic agents for late-stage PCa is of considerable interest for both species. PDA indolylmaleimides showed anticancer effects in several neoplastic cell lines. Herein, a comparative characterization of PDA-66 and PDA-377 mediated effects was performed in human and canine PCa cell lines, which is also the first detailed characterization of these agents on cells derived from solid tumors in general. While PDA-377 showed only weak growth inhibition on human PCa cell lines, PDA-66 inhibited proliferation and induced apoptosis in human and canine cell lines with concentrations in the low micromolar range. Morphological characterization and whole transcriptome sequencing revealed that PDA-66 induces mitotic death through its microtubule-depolymerizing ability. PDA-66 appears to be a worthwhile anti-mitotic agent for further evaluation. The similarities in cellular and molecular response observed in the cell lines of both origins form a solid basis for the use of canine PCa in vivo models to gain valuable interchangeable data to the advantage of both species.
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Affiliation(s)
- Jan Torben Schille
- Department of Medicine, Clinic III-Hematology, Oncology, Palliative Medicine, University of Rostock, Rostock, Germany.,Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ingo Nolte
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | | | - Daria Jilani
- Department of Medicine, Clinic III-Hematology, Oncology, Palliative Medicine, University of Rostock, Rostock, Germany.,Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Catrin Roolf
- Department of Medicine, Clinic III-Hematology, Oncology, Palliative Medicine, University of Rostock, Rostock, Germany
| | | | | | - Larissa Henze
- Department of Medicine, Clinic III-Hematology, Oncology, Palliative Medicine, University of Rostock, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institute for Catalysis, University of Rostock, Rostock, Germany
| | - Bertram Brenig
- Institute of Veterinary Medicine, University of Göttingen, Göttingen, Germany
| | - Christian Junghanss
- Department of Medicine, Clinic III-Hematology, Oncology, Palliative Medicine, University of Rostock, Rostock, Germany
| | - Ekkehard Schütz
- Chronix Biomedical, Göttingen, Germany.,Institute of Veterinary Medicine, University of Göttingen, Göttingen, Germany
| | - Hugo Murua Escobar
- Department of Medicine, Clinic III-Hematology, Oncology, Palliative Medicine, University of Rostock, Rostock, Germany
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7
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Pensalfini A, Kim S, Subbanna S, Bleiwas C, Goulbourne CN, Stavrides PH, Jiang Y, Lee JH, Darji S, Pawlik M, Huo C, Peddy J, Berg MJ, Smiley JF, Basavarajappa BS, Nixon RA. Endosomal Dysfunction Induced by Directly Overactivating Rab5 Recapitulates Prodromal and Neurodegenerative Features of Alzheimer's Disease. Cell Rep 2020; 33:108420. [PMID: 33238112 DOI: 10.1016/j.celrep.2020.108420] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 06/05/2020] [Accepted: 11/02/2020] [Indexed: 12/11/2022] Open
Abstract
Neuronal endosomal dysfunction, the earliest known pathobiology specific to Alzheimer's disease (AD), is mediated by the aberrant activation of Rab5 triggered by APP-β secretase cleaved C-terminal fragment (APP-βCTF). To distinguish pathophysiological consequences specific to overactivated Rab5 itself, we activate Rab5 independently from APP-βCTF in the PA-Rab5 mouse model. We report that Rab5 overactivation alone recapitulates diverse prodromal and degenerative features of AD. Modest neuron-specific transgenic Rab5 expression inducing hyperactivation of Rab5 comparable to that in AD brain reproduces AD-related Rab5-endosomal enlargement and mistrafficking, hippocampal synaptic plasticity deficits via accelerated AMPAR endocytosis and dendritic spine loss, and tau hyperphosphorylation via activated glycogen synthase kinase-3β. Importantly, Rab5-mediated endosomal dysfunction induces progressive cholinergic neurodegeneration and impairs hippocampal-dependent memory. Aberrant neuronal Rab5-endosome signaling, therefore, drives a pathogenic cascade distinct from β-amyloid-related neurotoxicity, which includes prodromal and neurodegenerative features of AD, and suggests Rab5 overactivation as a potential therapeutic target.
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Affiliation(s)
- Anna Pensalfini
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA; Department of Psychiatry, New York University Langone Health, New York, NY 10016, USA
| | - Seonil Kim
- Colorado State University, Department of Biomedical Sciences, Fort Collins, CO 80523, USA; Cellular and Molecular Biology Training Program, New York University Langone Health, New York, NY 10003, USA
| | - Shivakumar Subbanna
- Department of Analytical Psychopharmacology, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Cynthia Bleiwas
- Department of Neurochemistry, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Chris N Goulbourne
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Philip H Stavrides
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Ying Jiang
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA; Department of Psychiatry, New York University Langone Health, New York, NY 10016, USA
| | - Ju-Hyun Lee
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA; Department of Psychiatry, New York University Langone Health, New York, NY 10016, USA
| | - Sandipkumar Darji
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Monika Pawlik
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Chunfeng Huo
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - James Peddy
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Martin J Berg
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - John F Smiley
- Department of Neurochemistry, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA
| | - Balapal S Basavarajappa
- Department of Psychiatry, New York University Langone Health, New York, NY 10016, USA; Department of Analytical Psychopharmacology, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA; New York State Psychiatric Institute, New York, NY 10032, USA; Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Ralph A Nixon
- Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA; Department of Psychiatry, New York University Langone Health, New York, NY 10016, USA; Department of Cell Biology, New York University Langone Health, New York, NY 10003, USA; NYU Neuroscience Institute, New York, NY 10003, USA.
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8
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Gao L, Liu J, Xu P, Deng G, Liu B, Yuan F, Tan Y, Sun Q, Xu Y, Zhang H, Qi Y, Han S, Yang K, Geng R, Jiang H, Chen Q. AKT Inhibitor SC66 Inhibits Proliferation and Induces Apoptosis in Human Glioblastoma Through Down-Regulating AKT/β-Catenin Pathway. Front Pharmacol 2020; 11:1102. [PMID: 32848734 PMCID: PMC7411127 DOI: 10.3389/fphar.2020.01102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common intracranial malignancy in adults with the highest degree of malignancy and mortality. Due to its nature of diffuse invasiveness and high migration, GBM lacks an effective treatment strategy and is associated with poor prognosis. SC66 is a novel AKT inhibitor that has been reported to exert antiproliferative activity in many types of cancer cells. However, it remains unclear whether SC66 has antitumor effects in GBM. In this study, we found SC66 obviously suppressed U87 and U251 cell proliferation and EMT- mediated cell migration and invasion. Moreover, SC66 induced GBM cells apoptosis and arrested cell cycle in G0/G1 phase. Furthermore, SC66 also downregulated AKT signaling pathway in a concentration dependent manner. We also found the level of β-catenin nuclear translocation was prominently downregulated after SC66 treatment. Meanwhile, TCF/LEF luciferase report assay indicated that the activity of TCF/LEF was remarkably suppressed. Elevating β-catenin activity by using IM12 rescued SC66 inhibition-mediated GBM cell proliferation and metastasis. In addition, SC66 showed significantly suppressed the tumorigenicity compared to the control group in the xenograft mouse model. In conclusion, our study demonstrated that SC66 exerts prominently antitumor efficiency in GBM cells in vivo and in vitro by downregulated AKT/β-catenin pathway.
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Affiliation(s)
- Lun Gao
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Junhui Liu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Pengfei Xu
- Center for Science Research, The 7th Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Gang Deng
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Baohui Liu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Fanen Yuan
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yinqiu Tan
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qian Sun
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yang Xu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Huikai Zhang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yangzhi Qi
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shoumeng Han
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Kun Yang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Rongxin Geng
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hongxiang Jiang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qianxue Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
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9
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Chen X, Liu B, Li Y, Han L, Tang X, Deng W, Lai W, Wan M. Dihydrotestosterone Regulates Hair Growth Through the Wnt/β-Catenin Pathway in C57BL/6 Mice and In Vitro Organ Culture. Front Pharmacol 2020; 10:1528. [PMID: 32038233 PMCID: PMC6989660 DOI: 10.3389/fphar.2019.01528] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/26/2019] [Indexed: 11/26/2022] Open
Abstract
Dihydrotestosterone (DHT) is the most potent androgen that regulates hair cycling. Hair cycling involves cross-talk between the androgen and Wnt/β-catenin pathways. However, how DHT regulates hair follicle (HF) growth through the Wnt/β-catenin pathway has not been well investigated. This study aimed to investigate the roles of DHT in hair growth in vivo and in vitro. Human scalp HFs were treated with different concentrations of DHT (10-5, 10-6, 10-7, 10-8, and 10-9 mol/L) for 10 days. The effects of DHT on hair shaft elongation, the proliferation of hair matrix cells, and the levels of β-catenin, GSK-3β, and phosphorylated GSK-3β (ser9) were evaluated in the cultured HFs. The effects of DHT were further investigated in C57BL/6 mice. Moreover, the growth of cultured human HFs was observed after interfering with the β-catenin pathway through inhibitors or activators in the presence or absence of DHT. We found that different concentrations of DHT had different effects on human HFs in vitro and C57BL/6 mice. At 10-6 mol/L, DHT inhibited HF growth and β-catenin/p-GSK-3β expression, whereas 10-7 mol/L DHT induced HF growth and β-catenin/p-GSK-3β expression. In addition, a β-catenin inhibitor (21H7) inhibited HF growth in vitro, while a β-catenin activator (IM12) promoted HF growth in vitro and antagonized the inhibition of HFs by high levels of DHT. These results suggest that DHT plays a pivotal role in region-specific hair growth, which may be related to the Wnt/β-catenin pathway.
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Affiliation(s)
- Xianyan Chen
- Department of Dermatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Department of Dermatology, Hexian Medical Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Ben Liu
- Department of Dermatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ying Li
- Department of Dermatology, Guangzhou Eight People's Hospital, Guangzhou, China
| | - Le Han
- Department of Dermatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xin Tang
- Department of Dermatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wenjia Deng
- Department of Dermatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wei Lai
- Department of Dermatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Miaojian Wan
- Department of Dermatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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10
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Wang T, Duan YM, Fu Q, Liu T, Yu JC, Sui ZY, Huang L, Wen GQ. IM-12 activates the Wnt-β-catenin signaling pathway and attenuates rtPA-induced hemorrhagic transformation in rats after acute ischemic stroke. Biochem Cell Biol 2019; 97:702-708. [PMID: 31770017 DOI: 10.1139/bcb-2018-0384] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Hemorrhagic transformation (HT) is a devastating complication for patients with acute ischemic stroke (AIS) who are treated with tissue plasminogen activator (tPA). HT is associated with high morbidity and mortality, but no effective treatments are currently available to reduce the risk of HT. Therefore, methods to prevent HT are urgently needed. In this study, we used IM-12, an inhibitor of glycogen synthase kinase 3β (GSK-3β), to evaluate the role of the Wnt-β-catenin signaling pathway in recombinant tPA (rtPA)-induced HT. Sprague-Dawley rats were subjected to a middle cerebral artery occlusion (MCAO) model of ischemic stroke, and then were either administered rtPA, rtPA combined with IM-12, or the vehicle at 4 h after stroke was induced. Our results indicate that rats subjected to HT had more severe neurological deficits, brain edema, and blood-brain barrier (BBB) breakdown, and had a greater infarction volume than the control group. Rats treated with IM-12 had improved outcomes compared with those of rats treated with rtPA alone. Moreover, IM-12 increased the protein expression of β-catenin and downstream proteins while suppressing the expression of GSK-3β. These results suggest that IM-12 reduces rtPA-induced HT and attenuates BBB disruption, possibly through activation of the Wnt-β-catenin signaling pathway, and provides a potential therapeutic strategy for preventing tPA-induced HT after AIS.
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Affiliation(s)
- Ting Wang
- Department of Neurology, Hainan General Hospital Affiliated to University of South China, Haikou 570311, Hainan Province, China
| | - Yu-Mei Duan
- Department of Neurology, Hainan General Hospital Affiliated to University of South China, Haikou 570311, Hainan Province, China
| | - Qiao Fu
- Department of Rehabilitation Medicine, Hainan General Hospital, Haikou 570311, Hainan Province, China
| | - Tao Liu
- Department of Neurology, Hainan General Hospital, Haikou 570311, Hainan Province, China
| | - Jin-Cheng Yu
- Department of Rehabilitation Medicine, Hainan General Hospital, Haikou 570311, Hainan Province, China
| | - Zhi-Yan Sui
- Department of Neurology, Hainan General Hospital, Haikou 570311, Hainan Province, China
| | - Li Huang
- Department of Neurology, Hainan General Hospital, Haikou 570311, Hainan Province, China
| | - Guo-Qiang Wen
- Department of Neurology, Hainan General Hospital, Haikou 570311, Hainan Province, China
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11
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Markus J, Ferko B, Berkeš D, Moncol J, Lawson AM, Othman M, Daïch A. Indolylglycines Backbones in the Synthesis of Enantiopure 3,3-Spiroindolenines, Indolyl Tetracyclic Hemiaminals, and 3-Indolyl-maleimides Frameworks. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jozef Markus
- Department of Organic Chemistry; Slovak University of Technology, Radlinského 9; 81237 Bratislava Slovakia
| | - Branislav Ferko
- Department of Organic Chemistry; Slovak University of Technology, Radlinského 9; 81237 Bratislava Slovakia
| | - Dušan Berkeš
- Department of Organic Chemistry; Slovak University of Technology, Radlinského 9; 81237 Bratislava Slovakia
| | - Ján Moncol
- Department of Inorganic Chemistry; Slovak University of Technology; 81237 Bratislava Slovakia
| | - Ata Martin Lawson
- UNILEHAVRE, FR 3038 CNRS, URCOM, 76600 Le Havre, France. EA 3221, INC3M CNRS-FR 3038, UFR ST, BP: 1123, 25 rue Philipe Lebon; Normandie Univ.; 76063 Le Havre Cedex France
| | - Mohamed Othman
- UNILEHAVRE, FR 3038 CNRS, URCOM, 76600 Le Havre, France. EA 3221, INC3M CNRS-FR 3038, UFR ST, BP: 1123, 25 rue Philipe Lebon; Normandie Univ.; 76063 Le Havre Cedex France
| | - Adam Daïch
- UNILEHAVRE, FR 3038 CNRS, URCOM, 76600 Le Havre, France. EA 3221, INC3M CNRS-FR 3038, UFR ST, BP: 1123, 25 rue Philipe Lebon; Normandie Univ.; 76063 Le Havre Cedex France
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12
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Xu M, Wang SL, Zhu L, Wu PY, Dai WB, Rakesh KP. Structure-activity relationship (SAR) studies of synthetic glycogen synthase kinase-3β inhibitors: A critical review. Eur J Med Chem 2018; 164:448-470. [PMID: 30616053 DOI: 10.1016/j.ejmech.2018.12.073] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 12/20/2018] [Accepted: 12/29/2018] [Indexed: 12/28/2022]
Abstract
Glycogen Synthase Kinase-3 (GSK-3) is a constitutively dynamic, omnipresent serine/threonine protein kinase regularly called as a "multitasking kinase" due to its pliable function in diverse signaling pathways. It exists in two isoforms i.e., GSK-3α and GSK-3β. Inhibition of GSK-3 may be useful in curing various diseases such as Alzheimer's disease, type II diabetes, mood disorders, cancers, chronic inflammatory agents, stroke, bipolar disorders and so on, but the approach poses significant challenges. Lithium was the first GSK-3β inhibitor to be used for therapeutic outcome and has been effectively used for many years. In recent years, a large number of structurally diverse potent GSK-3β inhibitors are reported. The present review focuses on the recent developments in the area of medicinal chemistry to explore the diverse chemical structures of potent GSK-3β inhibitors and also describes its structure-activity relationships (SAR) and molecular binding interactions of favorable applicability in various diseases.
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Affiliation(s)
- M Xu
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - S L Wang
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - L Zhu
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - P Y Wu
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - W B Dai
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - K P Rakesh
- Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China.
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13
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Jiang Y, Lin L, Zhong S, Cai Y, Zhang F, Wang X, Miao R, Zhang B, Gao S, Hu X. Overexpression of novel lncRNA NLIPMT inhibits metastasis by reducing phosphorylated glycogen synthase kinase 3β in breast cancer. J Cell Physiol 2018; 234:10698-10708. [PMID: 30417392 DOI: 10.1002/jcp.27738] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/22/2018] [Indexed: 12/25/2022]
Abstract
Long noncoding RNAs (lncRNAs) are considered as regulators of gene expression in cancers. However, cancer profiling has little focused on noncoding genes. Here, we reported that RP11-115N4.1 (here renamed novel lncRNA inhibiting proliferation and metastasis [NLIPMT]) was downregulated in breast cancer tissues. Ectopic expression of NLIPMT inhibited mammary cell proliferation, motility in vitro. Moreover, lnc-NLIPMT reduced the growth of implanted MDA-MB-231 cells in vivo. Mechanistically, glycogen synthase kinase 3β (GSK3β) was identified as an effector protein regulated by lnc-NLIPMT. Inhibition of GSK3β activity restored NLIPMT-induced inhibition of proliferation and motility in breast cancer cells. These data reveal that lnc-NLIPMT functions as a driver of breast cancer progression and might serve as a potential target for antimetastatic therapies.
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Affiliation(s)
- Yang Jiang
- Department of Thyroid and Breast surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lili Lin
- Department of Thyroid and Breast surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shen Zhong
- Department of Colorectal and Anal Surgery, Kecheng People's Hospital, Quzhou, Zhejiang, China
| | - Yangjun Cai
- Department of Thyroid and Breast surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Fen Zhang
- Department of Thyroid and Breast surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaobo Wang
- Department of Thyroid and Breast surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Rongrong Miao
- Department of Thyroid and Breast surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Baodan Zhang
- Department of Thyroid and Breast surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shenmeng Gao
- Laboratory of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaoqu Hu
- Department of Thyroid and Breast surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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14
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Peng JX, Liang SY, Li L. sFRP1 exerts effects on gastric cancer cells through GSK3β/Rac1‑mediated restraint of TGFβ/Smad3 signaling. Oncol Rep 2018; 41:224-234. [PMID: 30542739 PMCID: PMC6278527 DOI: 10.3892/or.2018.6838] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 10/11/2018] [Indexed: 02/07/2023] Open
Abstract
Secreted frizzled-related protein 1 (sFRP1) is an inhibitor of canonical Wnt signaling; however, previous studies have determined a tumor-promoting function of sFRP1 in a number of different cancer types. A previous study demonstrated that sFRP1 overexpression was associated with an aggressive phenotype and the activation of transforming growth factor β (TGFβ) signaling. sFRP1 overexpression and sFRP1 knockdown cell models were established. Immunoblotting was conducted to examine the protein levels of the associated molecules. Immunofluorescence staining followed by confocal microscopy was performed to visualize the cytoskeleton alterations and subcellular localization of key proteins. sFRP1 overexpression restored glycogen synthase kinase 3β (GSK3β) activity, which activated Rac family small GTPase 1 (Rac1). GSK3β and Rac1 mediated the effect of sFRP1 on the positive regulation of cell growth and migration/invasion. Inhibition of GSK3β or Rac1 abolished the regulation of sFRP1 on TGFβ/SMAD family member 3 (Smad3) signaling and the aggressive phenotype; however, GSK3β or Rac1 overexpression increased cell migration/invasion and restrained Smad3 activity by preventing its nuclear translocation and limiting its transcriptional activity. The present study demonstrated a tumor-promoting function of sFRP1-overexpression by selectively activating TGFβ signaling in gastric cancer cells. GSK3β and Rac1 serve an important function in mediating the sFRP1-induced malignant alterations and signaling changes.
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Affiliation(s)
- Ji-Xiang Peng
- Department of Gastrointestinal Surgery, Guangzhou First People's Hospital, The Second Affiliated Hospital of South China University of Technology, Guangzhou, Guangdong 510180, P.R. China
| | - Shun-Yu Liang
- Department of Gastrointestinal Surgery, Guangzhou First Municipal People's Hospital, Affiliated Guangzhou Medical College, Guangzhou, Guangdong 510180, P.R. China
| | - Li Li
- Department of Gastrointestinal Surgery, Guangzhou First People's Hospital, The Second Affiliated Hospital of South China University of Technology, Guangzhou, Guangdong 510180, P.R. China
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15
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Diabetes mellitus and Alzheimer’s disease: GSK-3β as a potential link. Behav Brain Res 2018; 339:57-65. [DOI: 10.1016/j.bbr.2017.11.015] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 10/08/2017] [Accepted: 11/13/2017] [Indexed: 11/19/2022]
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16
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Saraswati AP, Ali Hussaini SM, Krishna NH, Babu BN, Kamal A. Glycogen synthase kinase-3 and its inhibitors: Potential target for various therapeutic conditions. Eur J Med Chem 2017; 144:843-858. [PMID: 29306837 DOI: 10.1016/j.ejmech.2017.11.103] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 11/29/2017] [Accepted: 11/30/2017] [Indexed: 11/16/2022]
Abstract
Glycogen Synthase Kinase-3 (GSK-3) is a serine/threonine kinase which is ubiquitously expressed and is regarded as a regulator for various cellular events and signalling pathways. It exists in two isoforms, GSK-3α and GSK-3β and can phosphorylate a wide range of substrates. Aberrancy in the GSK-3 activity can lead to various diseases like Alzheimer's, diabetes, cancer, neurodegeneration etc., rendering it an attractive target to develop potent and specific inhibitors. The present review focuses on the recent developments in the area of GSK-3 inhibitors and also enlightens its therapeutic applicability in various disease conditions.
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Affiliation(s)
- A Prasanth Saraswati
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - S M Ali Hussaini
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Namballa Hari Krishna
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India; Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Bathini Nagendra Babu
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Ahmed Kamal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India; Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India; School Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi 110062, India.
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17
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LNGFR targets the Wnt/β-catenin pathway and promotes the osteogenic differentiation in rat ectomesenchymal stem cells. Sci Rep 2017; 7:11021. [PMID: 28887537 PMCID: PMC5591262 DOI: 10.1038/s41598-017-11555-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/26/2017] [Indexed: 12/28/2022] Open
Abstract
Considerable evidence has shown that the Wnt/β-catenin pathway is involved in osteogenic differentiation in various stem cells. However, the role of Wnt/β-catenin pathway in regulating the osteogenic differentiation of rat ectomesenchymal stem cells (EMSCs), which are considered to be the progenitors of dental mesenchymal stem cells, remains unknown. In this study, we demonstrated that nuclear β-catenin was upregulated during EMSC osteogenic differentiation. The Wnt signalling inhibitor IWR-1-endo inhibited EMSC osteogenic differentiation, while the Wnt signalling agonist SKL2001 promoted it. Moreover, nuclear β-catenin was further upregulated by the overexpression of low-affinity nerve growth factor receptor (LNGFR) during EMSC osteogenic differentiation. Further experiments demonstrated that LNGFR overexpression enhanced EMSC osteogenic differentiation, while LNGFR silencing decreased it. Additionally, IWR-1-endo attenuated LNGFR-enhanced EMSC osteogenic differentiation. Collectively, our data reveal that LNGFR targets the Wnt/β-catenin pathway and positively regulates EMSC osteogenic differentiation, suggesting that Wnt/β-catenin pathway may be involved in the development of teeth and that the targeting Wnt/β-catenin pathway may have great potential for applications in dental tissue engineering regeneration.
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18
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Copper(I) Iodide-Catalyzed Sulfenylation of Maleimides and Related 3-Indolylmaleimides with Thiols. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600812] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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19
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An YL, Zhang HH, Yang ZH, Lin L, Zhao SY. Cu/Ag-Cocatalyzed Aerobic Oxidative Amination and CuCl2-Mediated Aerobic Oxidative Chloroamination of Maleimides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600923] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yu-Long An
- Department of Chemistry; Donghua University; 2999 North Renmin Road 201620 Shanghai P.R. China
| | - He-Hui Zhang
- Department of Chemistry; Donghua University; 2999 North Renmin Road 201620 Shanghai P.R. China
| | - Zhen-Hua Yang
- Department of Chemistry; Donghua University; 2999 North Renmin Road 201620 Shanghai P.R. China
| | - Long Lin
- Department of Chemistry; Donghua University; 2999 North Renmin Road 201620 Shanghai P.R. China
| | - Sheng-Yin Zhao
- Department of Chemistry; Donghua University; 2999 North Renmin Road 201620 Shanghai P.R. China
- State Key Laboratory of Bioorganic & Natural Products Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 200032 Shanghai P.R. China
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20
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Cai T, Sun D, Duan Y, Wen P, Dai C, Yang J, He W. WNT/β-catenin signaling promotes VSMCs to osteogenic transdifferentiation and calcification through directly modulating Runx2 gene expression. Exp Cell Res 2016; 345:206-17. [PMID: 27321958 DOI: 10.1016/j.yexcr.2016.06.007] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 06/10/2016] [Accepted: 06/10/2016] [Indexed: 11/30/2022]
Abstract
Arterial medial calcification (AMC) is prevalent in patients with chronic kidney disease (CKD) and contributes to elevated risk of cardiovascular events and mortality. Vascular smooth muscle cells (VSMCs) to osteogenic transdifferentiation (VOT) in a high-phosphate environment is involved in the pathogenesis of AMC in CKD. WNT/β-catenin signaling is indicated to play a crucial role in osteogenesis via promoting Runx2 expression in osteoprogenitor cells, however, its role in Runx2 regulation and VOT remains incompletely clarified. In this study, Runx2 was induced and β-catenin was activated by high-phosphate in VSMCs. Two forms of active β-catenin, dephosphorylated on Ser37/Thr41 and phosphorylated on Ser675 sites, were upregulated by high-phosphate. Activation of β-catenin, through ectopic expression of stabilized β-catenin, inhibition of GSK-3β, or WNT-3A protein, induced Runx2 expression, whereas blockade of WNT/β-catenin signaling with Porcupine (PORCN) inhibitor or Dickkopf-1 (DKK1) protein inhibited Runx2 induction by high-phosphate. WNT-3A promoted osteocalcin expression and calcium deposition in VSMCs, whereas DKK1 ameliorated calcification of VSMCs induced by high-phosphate. Two functional T cell factor (TCF)/lymphoid enhancer-binding factor binding sites were identified in the promoter region of Runx2 gene in VSMCs, which interacted with TCF upon β-catenin activation. Site-directed mutation of each of them attenuated Runx2 response to β-catenin, and deletion or destruction of both of them completely abolished this responsiveness. In the aortic tunica media of rats with chronic renal failure, followed by AMC, Runx2 and β-catenin was induced, and the Runx2 mRNA level was positively associated with the abundance of phosphorylated β-catenin (Ser675). Collectively, our study suggested that high-phosphate may activate WNT/β-catenin signaling through different pathways, and the activated WNT/β-catenin signaling, through direct downstream target Runx2, could play an important role in promoting VOT and AMC.
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Affiliation(s)
- Ting Cai
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210003, China
| | - Danqin Sun
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210003, China
| | - Ying Duan
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210003, China
| | - Ping Wen
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210003, China
| | - Chunsun Dai
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210003, China
| | - Junwei Yang
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210003, China.
| | - Weichun He
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210003, China.
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21
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A TIM-3/Gal-9 Autocrine Stimulatory Loop Drives Self-Renewal of Human Myeloid Leukemia Stem Cells and Leukemic Progression. Cell Stem Cell 2015; 17:341-52. [PMID: 26279267 DOI: 10.1016/j.stem.2015.07.011] [Citation(s) in RCA: 185] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 05/17/2015] [Accepted: 07/20/2015] [Indexed: 10/23/2022]
Abstract
Signaling mechanisms underlying self-renewal of leukemic stem cells (LSCs) are poorly understood, and identifying pathways specifically active in LSCs could provide opportunities for therapeutic intervention. T-cell immunoglobin mucin-3 (TIM-3) is expressed on the surface of LSCs in many types of human acute myeloid leukemia (AML), but not on hematopoietic stem cells (HSCs). Here, we show that TIM-3 and its ligand, galectin-9 (Gal-9), constitute an autocrine loop critical for LSC self-renewal and development of human AML. Serum Gal-9 levels were significantly elevated in AML patients and in mice xenografted with primary human AML samples, and neutralization of Gal-9 inhibited xenogeneic reconstitution of human AML. Gal-9-mediated stimulation of TIM-3 co-activated NF-κB and β-catenin signaling, pathways known to promote LSC self-renewal. These changes were further associated with leukemic transformation of a variety of pre-leukemic disorders and together highlight that targeting the TIM-3/Gal-9 autocrine loop could be a useful strategy for treating myeloid leukemias.
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22
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Li L, Shao X, Cole EL, Ohnmacht S, Ferrari V, Hong YT, Williamson DJ, Fryer TD, Quesada CA, Sherman P, Riss PJ, Scott PJH, Aigbirhio FI. Synthesis and Initial in Vivo Studies with [(11)C]SB-216763: The First Radiolabeled Brain Penetrative Inhibitor of GSK-3. ACS Med Chem Lett 2015; 6:548-52. [PMID: 26005531 PMCID: PMC4434473 DOI: 10.1021/acsmedchemlett.5b00044] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 03/10/2015] [Indexed: 01/15/2023] Open
Abstract
Quantifying glycogen synthase kinase-3 (GSK-3) activity in vivo using positron emission tomography (PET) imaging is of interest because dysregulation of GSK-3 is implicated in numerous diseases and neurological disorders for which GSK-3 inhibitors are being considered as therapeutic strategies. Previous PET radiotracers for GSK-3 have been reported, but none of the published examples cross the blood-brain barrier. Therefore, we have an ongoing interest in developing a brain penetrating radiotracer for GSK-3. To this end, we were interested in synthesis and preclinical evaluation of [(11)C]SB-216763, a high-affinity inhibitor of GSK-3 (K i = 9 nM; IC50 = 34 nM). Initial radiosyntheses of [(11)C]SB-216763 proved ineffective in our hands because of competing [3 + 3] sigmatropic shifts. Therefore, we have developed a novel one-pot two-step synthesis of [(11)C]SB-216763 from a 2,4-dimethoxybenzyl-protected maleimide precursor, which provided high specific activity [(11)C]SB-216763 in 1% noncorrected radiochemical yield (based upon [(11)C]CH3I) and 97-100% radiochemical purity (n = 7). Initial preclinical evaluation in rodent and nonhuman primate PET imaging studies revealed high initial brain uptake (peak rodent SUV = 2.5 @ 3 min postinjection; peak nonhuman primate SUV = 1.9 @ 5 min postinjection) followed by washout. Brain uptake was highest in thalamus, striatum, cortex, and cerebellum, areas known to be rich in GSK-3. These results make the arylindolemaleimide skeleton our lead scaffold for developing a PET radiotracer for quantification of GSK-3 density in vivo and ultimately translating it into clinical use.
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Affiliation(s)
- Lei Li
- Molecular
Imaging Chemistry Laboratory, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 1TN, U.K.
| | - Xia Shao
- Division
of Nuclear Medicine, Department of Radiology, The University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Erin L. Cole
- Division
of Nuclear Medicine, Department of Radiology, The University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Stephan
A. Ohnmacht
- Molecular
Imaging Chemistry Laboratory, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 1TN, U.K.
| | - Valentina Ferrari
- Molecular
Imaging Chemistry Laboratory, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 1TN, U.K.
| | - Young T. Hong
- Laboratory
for Molecular Imaging, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 1TN, U.K.
| | - David J. Williamson
- Laboratory
for Molecular Imaging, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 1TN, U.K.
| | - Tim D. Fryer
- Laboratory
for Molecular Imaging, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 1TN, U.K.
| | - Carole A. Quesada
- Division
of Nuclear Medicine, Department of Radiology, The University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Phillip Sherman
- Division
of Nuclear Medicine, Department of Radiology, The University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Patrick J. Riss
- Molecular
Imaging Chemistry Laboratory, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 1TN, U.K.
| | - Peter J. H. Scott
- Division
of Nuclear Medicine, Department of Radiology, The University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
- The
Interdepartmental Program in Medicinal Chemistry, The University of Michigan, Ann
Arbor, Michigan 48109, United States
| | - Franklin I. Aigbirhio
- Molecular
Imaging Chemistry Laboratory, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 1TN, U.K.
- Laboratory
for Molecular Imaging, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 1TN, U.K.
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Wang X, Wu H, Xue G, Hou Y. Progesterone promotes neuronal differentiation of human umbilical cord mesenchymal stem cells in culture conditions that mimic the brain microenvironment. Neural Regen Res 2015; 7:1925-30. [PMID: 25624820 PMCID: PMC4298884 DOI: 10.3969/j.issn.1673-5374.2012.25.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2011] [Accepted: 05/04/2011] [Indexed: 12/16/2022] Open
Abstract
In this study, human umbilical cord mesenchymal stem cells from full-term neonates born by vaginal delivery were cultured in medium containing 150 mg/mL of brain tissue extracts from Sprague-Dawley rats (to mimic the brain microenvironment). Immunocytochemical analysis demonstrated that the cells differentiated into neuron-like cells. To evaluate the effects of progesterone as a neurosteroid on the neuronal differentiation of human umbilical cord mesenchymal stem cells, we cultured the cells in medium containing progesterone (0.1, 1, 10 μM) in addition to brain tissue extracts. Reverse transcription-PCR and flow cytometric analysis of neuron specific enolase-positive cells revealed that the percentages of these cells increased significantly following progesterone treatment, with the optimal progesterone concentration for neuron-like differentiation being 1 μM. These results suggest that progesterone can enhance the neuronal differentiation of human umbilical cord mesenchymal stem cells in culture medium containing brain tissue extracts to mimic the brain microenvironment.
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Affiliation(s)
- Xianying Wang
- Hebei Medical University, Shijiazhuang 050017, Hebei Province, China ; The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei Province, China
| | - Honghai Wu
- Bethune International Peace Hospital of Chinese PLA, Shijiazhuang 050082, Hebei Province, China
| | - Gai Xue
- Bethune International Peace Hospital of Chinese PLA, Shijiazhuang 050082, Hebei Province, China
| | - Yanning Hou
- Hebei Medical University, Shijiazhuang 050017, Hebei Province, China ; Bethune International Peace Hospital of Chinese PLA, Shijiazhuang 050082, Hebei Province, China
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Mußmann C, Hübner R, Trilck M, Rolfs A, Frech MJ. HES5 is a key mediator of Wnt-3a-induced neuronal differentiation. Stem Cells Dev 2014; 23:1328-39. [PMID: 24548083 DOI: 10.1089/scd.2013.0557] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Human neural stem/progenitor cell (hNPC)-derived neuronal progeny has been suggested as a promising cell source in a variety of neurodegenerative diseases. Understanding the underlying mechanisms that regulate neuronal differentiation is essential for efficient cell-based therapies. Wnt and Notch signaling has been shown to be crucial in this process. However, their interactions in the process of neuronal differentiation remain elusive. By using human fetal (ReNcell VM) and iPS-derived hNPCs we demonstrate that Wnt-3a immediately induced a transient HES1 upregulation and a sustained HES5 repression that was accompanied by upregulation of the proneural gene MASH1. Conversely, overexpression of HES5 resulted in reduced MASH1 expression. Remarkably, HES5 overexpression efficiently blocked Wnt-3a as well as γ-secretase inhibitor N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester (DAPT)-induced neuronal differentiation that was accompanied by a strong MASH1 downregulation thus directly linking HES5 repression/MASH1 induction to the proneurogenic effect of Wnt-3a. Stabilized β-catenin or treatment with the specific glycogen synthase kinase 3 beta (GSK3β) inhibitor SB-216763 failed to or only partially mimicked these effects, suggesting a GSK3β- and β-catenin-independent mechanism. Further, inhibition of Wnt-3a-LDL-receptor-related protein 5/6 (LRP5/6) interactions using Dickkopf-1 (Dkk-1) failed to inhibit the modulatory effect of Wnt-3a on HES1/5 and neuronal differentiation. Taken together, these data identify HES5 as a key mediator of the Wnt-3a proneurogenic effect occurring independently of the classical Wnt/β-catenin signaling cascade thus further deciphering crosstalk mechanisms of Wnt and Notch signaling pathways regulating cell fate of hNPCs.
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Affiliation(s)
- Carolin Mußmann
- Albrecht-Kossel-Institute for Neuroregeneration (AKos), University of Rostock , Rostock, Germany
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26
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Kretzschmar C, Roolf C, Langhammer TS, Sekora A, Pews-Davtyan A, Beller M, Frech MJ, Eisenlöffel C, Rolfs A, Junghanss C. The novel arylindolylmaleimide PDA-66 displays pronounced antiproliferative effects in acute lymphoblastic leukemia cells. BMC Cancer 2014; 14:71. [PMID: 24502201 PMCID: PMC3922486 DOI: 10.1186/1471-2407-14-71] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 02/02/2014] [Indexed: 12/17/2022] Open
Abstract
Background Prognosis of adult patients suffering from acute lymphoblastic leukemia (ALL) is still unsatisfactory. Targeted therapy via inhibition of deregulated signaling pathways appears to be a promising therapeutic option for the treatment of ALL. Herein, we evaluated the influence of a novel arylindolylmaleimide (PDA-66), a potential GSK3β inhibitor, on several ALL cell lines. Methods ALL cell lines (SEM, RS4;11, Jurkat and MOLT4) were exposed to different concentrations of PDA-66. Subsequently, proliferation, metabolic activity, apoptosis and necrosis, cell cycle distribution and protein expression of Wnt and PI3K/Akt signaling pathways were analyzed at different time points. Results PDA-66 inhibited the proliferation of ALL cells significantly by reduction of metabolic activity. The 72 h IC50 values ranged between 0.41 to 1.28 μM PDA-66. Additionally, caspase activated induction of apoptosis could be detected in the analyzed cell lines. PDA-66 influenced the cell cycle distribution of ALL cell lines differently. While RS4;11 and MOLT4 cells were found to be arrested in G2 phase, SEM cells showed an increased cell cycle in G0/1 phase. Conclusion PDA-66 displays significant antileukemic activity in ALL cells and classifies as candidate for further evaluation as a potential drug in targeted therapy of ALL.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Christian Junghanss
- Department of Hematology/Oncology/Palliative Medicine, Division of Medicine, University of Rostock, Ernst-Heydemann-Str, 6, Rostock 18057, Germany.
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Sharif M, Pews-Davtyan A, Lukas J, Schranck J, Langer P, Rolfs A, Beller M. Palladium-Catalyzed Carbonylative Transformations of Bromhexine into Bioactive Compounds as Glucocerebrosidase Inhibitors. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301180] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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28
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Hunt CP, Fabb SA, Pouton CW, Haynes JM. DNA-dependent protein kinase is a context dependent regulator of Lmx1a and midbrain specification. PLoS One 2013; 8:e78759. [PMID: 24194952 PMCID: PMC3806860 DOI: 10.1371/journal.pone.0078759] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 09/18/2013] [Indexed: 11/30/2022] Open
Abstract
The identification of small molecules capable of directing pluripotent cell differentiation towards specific lineages is highly desirable to both reduce cost, and increase efficiency. Within neural progenitors, LIM homeobox transcription factor 1 alpha (Lmx1a) is required for proper development of roof plate and cortical hem structures of the forebrain, as well as the development of floor plate and midbrain dopaminergic neurons. In this study we generated homologous recombinant cell lines expressing either luciferase or β-lactamase under the control of the Lmx1a promoter, and used these cell lines to investigate kinase-mediated regulation of Lmx1a activity during neuronal differentiation. A screen of 143 small molecule tyrosine kinase inhibitors yielded 16 compounds that positively or negatively modulated Lmx1a activity. Inhibition of EGF, VEGF and DNA-dependent protein kinase (DNA-PK) signaling significantly upregulated Lmx1a activity whereas MEK inhibition strongly downregulated its activity. Quantitative FACS analysis revealed that the DNA-PK inhibitor significantly increased the number of Lmx1a+ progenitors while subsequent qPCR showed an upregulation of Notch effectors, the basic helix-loop-helix genes, Hes5 and Hey1. FACS further revealed that DNA-PK-mediated regulation of Lmx1a+ cells is dependent on the rapamycin-sensitive complex, mTORC1. Interestingly, this DNA-PK inhibitor effect was preserved in a co-culture differentiation protocol. Terminal differentiation assays showed that DNA-PK inhibition shifted development of neurons from forebrain toward midbrain character as assessed by Pitx3/TH immunolabeling and corresponding upregulation of midbrain (En1), but not forebrain (FoxG1) transcripts. These studies show that Lmx1a signaling in mouse embryonic stem cells contributes to a molecular cascade establishing neuronal specification. The data presented here identifies a novel regulatory pathway where signaling from DNA-PK appears to suppress midbrain-specific Lmx1a expression.
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Affiliation(s)
- Cameron P. Hunt
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville), Melbourne, Australia
| | - Stewart A. Fabb
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville), Melbourne, Australia
| | - Colin W. Pouton
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville), Melbourne, Australia
- * E-mail: (JMH); (CWP)
| | - John M. Haynes
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville), Melbourne, Australia
- * E-mail: (JMH); (CWP)
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29
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Liedmann A, Frech S, Morgan PJ, Rolfs A, Frech MJ. Differentiation of human neural progenitor cells in functionalized hydrogel matrices. Biores Open Access 2013; 1:16-24. [PMID: 23515105 PMCID: PMC3560381 DOI: 10.1089/biores.2012.0209] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Hydrogel-based three-dimensional (3D) scaffolds are widely used in the field of regenerative medicine, translational medicine, and tissue engineering. Recently, we reported the effect of scaffold formation on the differentiation and survival of human neural progenitor cells (hNPCs) using PuraMatrix™ (RADA-16) scaffolds. Here, we were interested in the impact of PuraMatrix modified by the addition of short peptide sequences, based on a bone marrow homing factor and laminin. The culture and differentiation of the hNPCs in the modified matrices resulted in an approximately fivefold increase in neuronal cells. The examination of apoptotic and necrotic cells, as well as the level of the anti-apoptotic protein Bcl-2, indicates benefits for cells hosted in the modified formulations. In addition, we found a trend to lower proportions of apoptotic or necrotic neuronal cells in the modified matrices. Interestingly, the neural progenitor cell pool was increased in all the tested matrices in comparison to the standard 2D culture system, while no difference was found between the modified matrices. We conclude that a combination of elevated neuronal differentiation and a protective effect of the modified matrices underlies the increased proportion of neuronal cells.
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Affiliation(s)
- Andrea Liedmann
- Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock , Rostock, Germany
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30
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Eisenlöffel C, Schmöle AC, Pews-Davtyan A, Brennführer A, Kuznetsov SA, Hübner R, Frech S, Schult C, Junghanss C, Beller M, Rolfs A, Frech MJ. Interference of a novel indolylmaleimide with microtubules induces mitotic arrest and apoptosis in human progenitor and cancer cells. Biochem Pharmacol 2012; 85:763-71. [PMID: 23274302 DOI: 10.1016/j.bcp.2012.12.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 12/12/2012] [Accepted: 12/17/2012] [Indexed: 11/28/2022]
Abstract
Indolylmaleimides display a broad spectrum of biological activity and offer great opportunity to influence several aspects of cell fate, as proliferation and differentiation. In this study we describe the effect of PDA-66, a newly synthesised indolylmaleimide, showing a strong dose dependent anti-proliferative effect on immortalised human progenitor and cancer cells. We demonstrated a highly depolymerizing effect on in vitro tubulin assembly and conclude that PDA-66 acts as microtubule destabilising agent. In addition we found that PDA-66 induces mitotic arrest of cells in the G₂/M phase of the cell cycle. Subsequently cells undergo apoptosis, indicating the major mechanism of the anti-proliferative effect. To prove a potential anti-cancer activity of PDA-66 we examined the effect of PDA-66 on human SH-SY5Y neuroblastoma and A-459 lung cancer cells, showing a significant reduction in cancer cell proliferation in a dose dependent manner. Thus PDA-66 is a new anti-mitotic compound with an indole-core with the potential to be used for cancer therapy.
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Affiliation(s)
- Christian Eisenlöffel
- Albrecht-Kossel-Institute for Neuroregeneration, Center for Mental Health, University of Rostock, Germany.
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Jaeger A, Baake J, Weiss DG, Kriehuber R. Glycogen synthase kinase-3beta regulates differentiation-induced apoptosis of human neural progenitor cells. Int J Dev Neurosci 2012; 31:61-8. [PMID: 23085082 DOI: 10.1016/j.ijdevneu.2012.10.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 09/14/2012] [Accepted: 10/08/2012] [Indexed: 12/28/2022] Open
Abstract
Glycogen synthase kinase-3beta is a multifunctional key regulator enzyme in neural developmental processes and a main component of the canonical Wnt signaling pathway. It is already known that the Wnt-driven differentiation of neural progenitor cells is accompanied by an increase of apoptosis at which the pro-apoptotic function of GSK-3beta is still discussed. The aim of the present study was to investigate whether the phosphorylation level of GSK-3beta at serine 9 is the primary regulatory mechanism of differentiation-induced apoptosis. Differentiating human neural ReNcell VM progenitor cells were treated with the specific GSK-3beta inhibitor SB216763 (10 μM) and analyzed in respect to the intrinsic apoptosis pathway regulation using microscopy and protein expression analysis. Differentiation of ReNcell VM cells was accompanied by cell morphological changes, cytoskeleton rearrangement and apoptosis increase. Treatment of differentiating cells with SB216763 induced a significant dephosphorylation of GSK-3beta at serine 9 accompanied by a significant decrease of apoptosis of about 0.7±0.03% and reduced activation of caspase-3 as well as BAX and PARP cleavage during the first 12h of differentiation compared to untreated, differentiating cells. Dephosphorylation of GSK-3beta at serine 9 appears not solely to be responsible for its pro-apoptotic function, because we observed a decrease of intrinsic apoptosis after treatment of the cells with the specific GSK-3beta inhibitor SB216763. We assume that GSK-3beta drives neural progenitor cell apoptosis by direct interaction with pro-apoptotic BAX or by indirect influence on the canonical Wnt/beta-catenin target gene transcription.
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Affiliation(s)
- Alexandra Jaeger
- University of Rostock, Institute of Biological Sciences, Cell Biology and Biosystems Technology, Albert-Einstein-Straße 3, D-18051 Rostock, Germany
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Elucidating the sources of β-catenin dynamics in human neural progenitor cells. PLoS One 2012; 7:e42792. [PMID: 22952611 PMCID: PMC3431164 DOI: 10.1371/journal.pone.0042792] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Accepted: 07/11/2012] [Indexed: 01/03/2023] Open
Abstract
Human neural progenitor cells (hNPCs) form a new prospect for replacement therapies in the context of neurodegenerative diseases. The Wnt/β-catenin signaling pathway is known to be involved in the differentiation process of hNPCs. RVM cells form a common cell model of hNPCs for in vitro investigation. Previous observations in RVM cells raise the question of whether observed kinetics of the Wnt/β-catenin pathway in later differentiation phases are subject to self-induced signaling. However, a concern when investigating RVM cells is that experimental results are possibly biased by the asynchrony of cells w.r.t. the cell cycle. In this paper, we present, based on experimental data, a computational modeling study on the Wnt/β-catenin signaling pathway in RVM cell populations asynchronously distributed w.r.t. to their cell cycle phases. Therefore, we derive a stochastic model of the pathway in single cells from the reference model in literature and extend it by means of cell populations and cell cycle asynchrony. Based on this, we show that the impact of the cell cycle asynchrony on wet-lab results that average over cell populations is negligible. We then further extend our model and the thus-obtained simulation results provide additional evidence that self-induced Wnt signaling occurs in RVM cells. We further report on significant stochastic effects that directly result from model parameters provided in literature and contradict experimental observations.
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Esfandiari F, Fathi A, Gourabi H, Kiani S, Nemati S, Baharvand H. Glycogen synthase kinase-3 inhibition promotes proliferation and neuronal differentiation of human-induced pluripotent stem cell-derived neural progenitors. Stem Cells Dev 2012; 21:3233-43. [PMID: 22642687 DOI: 10.1089/scd.2011.0678] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Human-induced pluripotent stem cell-derived neural progenitors (hiPSC-NPs) have the ability to self-renew and differentiate into glial and neuronal lineages, which makes them an invaluable source in cell replacement therapy for neurological diseases. Therefore, their enhanced proliferation and neuronal differentiation are pivotal features that can be used in repairing neurological injuries. One of the main regulators of neural development is Wnt signaling, which results in the inhibition of glycogen synthase kinase 3 (GSK-3). Here, we assess the impact of GSK-3 inhibition by the small molecule CHIR99021 on the expansion and differentiation of hiPSC-NPs in an adherent condition and a defined medium. Cell proliferation analyses have revealed that inhibition of GSK-3 in the presence of epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF) increased the proliferation of hiPSC-NPs across 10 passages. The inhibition of β-catenin signaling by XAV and NOTCH signaling by DAPT reversed CHIR impact on hiPSC-NPs proliferation. The target genes of β-catenin, C-MYC and CYCLIN D1 as well as NOTCH target genes, HES1 and HES5 were upregulated. The treatment of NPs by CHIR in the absence of bFGF and EGF resulted in an increase of neuronal differentiation rather than proliferation by stabilization of β-catenin regardless of the NOTCH pathway. Thus, GSK-3 inhibition has been shown to promote proliferation of the NPs by activating β-catenin and NOTCH-related cell cycle genes in the presence of bFGF and EGF. Additionally, during GSK-3 inhibition, an absence of these growth factors allows for the switch to neuronal differentiation with a bias toward a dopaminergic fate. This may provide desired cells that can be used in therapeutic applications and offer insights into the etiology of some neurological disorders.
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Affiliation(s)
- Fereshteh Esfandiari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Liedmann A, Rolfs A, Frech MJ. Cultivation of human neural progenitor cells in a 3-dimensional self-assembling peptide hydrogel. J Vis Exp 2012:e3830. [PMID: 22258286 DOI: 10.3791/3830] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The influence of 3-dimensional (3D) scaffolds on growth, proliferation and finally neuronal differentiation is of great interest in order to find new methods for cell-based and standardised therapies in neurological disorders or neurodegenerative diseases. 3D structures are expected to provide an environment much closer to the in vivo situation than 2D cultures. In the context of regenerative medicine, the combination of biomaterial scaffolds with neural stem and progenitor cells holds great promise as a therapeutic tool. Culture systems emulating a three dimensional environment have been shown to influence proliferation and differentiation in different types of stem and progenitor cells. Herein, the formation and functionalisation of the 3D-microenviroment is important to determine the survival and fate of the embedded cells. Here we used PuraMatrix (RADA16, PM), a peptide based hydrogel scaffold, which is well described and used to study the influence of a 3D-environment on different cell types. PuraMatrix can be customised easily and the synthetic fabrication of the nano-fibers provides a 3D-culture system of high reliability, which is in addition xeno-free. Recently we have studied the influence of the PM-concentration on the formation of the scaffold. In this study the used concentrations of PM had a direct impact on the formation of the 3D-structure, which was demonstrated by atomic force microscopy. A subsequent analysis of the survival and differentiation of the hNPCs revealed an influence of the used concentrations of PM on the fate of the embedded cells. However, the analysis of survival or neuronal differentiation by means of immunofluorescence techniques posses some hurdles. To gain reliable data, one has to determine the total number of cells within a matrix to obtain the relative number of e.g. neuronal cells marked by βIII-tubulin. This prerequisites a technique to analyse the scaffolds in all 3-dimensions by a confocal microscope or a comparable technique like fluorescence microscopes able to take z-stacks of the specimen. Furthermore this kind of analysis is extremely time consuming. Here we demonstrate a method to release cells from the 3D-scaffolds for the later analysis e.g. by flow cytometry. In this protocol human neural progenitor cells (hNPCs) of the ReNcell VM cell line (Millipore USA) were cultured and differentiated in 3D-scaffolds consisting of PuraMatrix (PM) or PuraMatrix supplemented with laminin (PML). In our hands a PM-concentration of 0.25% was optimal for the cultivation of the cells, however the concentration might be adapted to other cell types. The released cells can be used for e.g. immunocytochemical studies and subsequently analysed by flow cytometry. This speeds up the analysis and more over, the obtained data rest upon a wider base, improving the reliability of the data.
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Affiliation(s)
- Andrea Liedmann
- Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock
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35
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Morgan PJ, Liedmann A, Hübner R, Hovakimyan M, Rolfs A, Frech MJ. Human neural progenitor cells show functional neuronal differentiation and regional preference after engraftment onto hippocampal slice cultures. Stem Cells Dev 2011; 21:1501-12. [PMID: 21867424 DOI: 10.1089/scd.2011.0335] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The transplantation of stem cells offers potential therapies for many neurodegenerative disorders that currently have limited or no treatment options. However, relatively little is known about how the host environment affects the development and integration of these cells. In this study we have engrafted immortalized human midbrain neural progenitor cells (NPCs) onto rat hippocampal brain slice cultures to examine the influence of a neural environment on differentiation. Patch clamp recordings revealed that the transplanted progenitor cells could express neuronal-type voltage-gated currents and rapidly receive synaptic input from the hippocampal brain slice. The distribution of progenitor cells across the hippocampal slices was strongly influenced by the neural architecture, with most cells located in the fissural regions and sending processes parallel to the laminar structure, while in contrast, cells located in the dentate gyrus showed no organized pattern. Almost no cells were found in the stratum radiatum or pyramidal cell layers. Together, these results demonstrate the potential for the architecture of the host environment to regulate the integration of transplanted cells, and highlight the utility of coculture systems for studying the mechanisms underlying the migration, integration, and differentiation of human NPCs in structured neural environments.
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Affiliation(s)
- Peter J Morgan
- Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany
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36
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Quantitative and kinetic profile of Wnt/β-catenin signaling components during human neural progenitor cell differentiation. Cell Mol Biol Lett 2011; 16:515-38. [PMID: 21805133 PMCID: PMC6275579 DOI: 10.2478/s11658-011-0021-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Accepted: 08/03/2011] [Indexed: 12/30/2022] Open
Abstract
ReNcell VM is an immortalized human neural progenitor cell line with the ability to differentiate in vitro into astrocytes and neurons, in which the Wnt/β-catenin pathway is known to be involved. However, little is known about kinetic changes of this pathway in human neural progenitor cell differentiation. In the present study, we provide a quantitative profile of Wnt/β-catenin pathway dynamics showing its spatio-temporal regulation during ReNcell VM cell differentiation. We show first that T-cell factor dependent transcription can be activated by stabilized β-catenin. Furthermore, endogenous Wnt ligands, pathway receptors and signaling molecules are temporally controlled, demonstrating changes related to differentiation stages. During the first three hours of differentiation the signaling molecules LRP6, Dvl2 and β-catenin are spatio-temporally regulated between distinct cellular compartments. From 24 h onward, components of the Wnt/β-catenin pathway are strongly activated and regulated as shown by mRNA up-regulation of Wnt ligands (Wnt5a and Wnt7a), receptors including Frizzled-2, -3, -6, -7, and -9, and co-receptors, and target genes including Axin2. This detailed temporal profile of the Wnt/β-catenin pathway is a first step to understand, control and to orientate, in vitro, human neural progenitor cell differentiation.
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Giese AK, Frahm J, Hübner R, Luo J, Wree A, Frech MJ, Rolfs A, Ortinau S. Erythropoietin and the effect of oxygen during proliferation and differentiation of human neural progenitor cells. BMC Cell Biol 2010; 11:94. [PMID: 21126346 PMCID: PMC3018408 DOI: 10.1186/1471-2121-11-94] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Accepted: 12/02/2010] [Indexed: 12/18/2022] Open
Abstract
Background Hypoxia plays a critical role in various cellular mechanisms, including proliferation and differentiation of neural stem and progenitor cells. In the present study, we explored the impact of lowered oxygen on the differentiation potential of human neural progenitor cells, and the role of erythropoietin in the differentiation process. Results In this study we demonstrate that differentiation of human fetal neural progenitor cells under hypoxic conditions results in an increased neurogenesis. In addition, expansion and proliferation under lowered oxygen conditions also increased neuronal differentiation, although proliferation rates were not altered compared to normoxic conditions. Erythropoietin partially mimicked these hypoxic effects, as shown by an increase of the metabolic activity during differentiation and protection of differentiated cells from apoptosis. Conclusion These results provide evidence that hypoxia promotes the differentiation of human fetal neural progenitor cells, and identifies the involvement of erythropoietin during differentiation as well as different cellular mechanisms underlying the induction of differentiation mediated by lowered oxygen levels.
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Affiliation(s)
- Anne-Katrin Giese
- Albrecht-Kossel-Institute for Neuroregeneration, Centre for Mental Health Disease, University of Rostock, Germany
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Ortinau S, Schmich J, Block S, Liedmann A, Jonas L, Weiss DG, Helm CA, Rolfs A, Frech MJ. Effect of 3D-scaffold formation on differentiation and survival in human neural progenitor cells. Biomed Eng Online 2010; 9:70. [PMID: 21070668 PMCID: PMC2996398 DOI: 10.1186/1475-925x-9-70] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Accepted: 11/11/2010] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND 3D-scaffolds have been shown to direct cell growth and differentiation in many different cell types, with the formation and functionalisation of the 3D-microenviroment being important in determining the fate of the embedded cells. Here we used a hydrogel-based scaffold to investigate the influences of matrix concentration and functionalisation with laminin on the formation of the scaffolds, and the effect of these scaffolds on human neural progenitor cells cultured within them. METHODS In this study we used different concentrations of the hydrogel-based matrix PuraMatrix. In some experiments we functionalised the matrix with laminin I. The impact of concentration and treatment with laminin on the formation of the scaffold was examined with atomic force microscopy. Cells from a human fetal neural progenitor cell line were cultured in the different matrices, as well as in a 2D culture system, and were subsequently analysed with antibody stainings against neuronal markers. In parallel, the survival rate of the cells was determined by a live/dead assay. RESULTS Atomic force microscopy measurements demonstrated that the matrices are formed by networks of isolated PuraMatrix fibres and aggregates of fibres. An increase of the hydrogel concentration led to a decrease in the mesh size of the scaffolds and functionalisation with laminin promoted aggregation of the fibres (bundle formation), which further reduces the density of isolated fibres. We showed that laminin-functionalisation is essential for human neural progenitor cells to build up 3D-growth patterns, and that proliferation of the cells is also affected by the concentration of matrix. In addition we found that 3D-cultures enhanced neuronal differentiation and the survival rate of the cells compared to 2D-cultures. CONCLUSIONS Taken together, we have demonstrated a direct influence of the 3D-scaffold formation on the survival and neuronal differentiation of human neural progenitor cells. These findings emphasize the importance of optimizing 3D-scaffolds protocols prior to in vivo engraftment of stem and progenitor cells in the context of regenerative medicine.
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Affiliation(s)
- Stefanie Ortinau
- Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Gehlsheimerstrasse 20, 18147 Rostock, Germany
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Hübner R, Schmöle AC, Liedmann A, Frech MJ, Rolfs A, Luo J. Differentiation of human neural progenitor cells regulated by Wnt-3a. Biochem Biophys Res Commun 2010; 400:358-62. [DOI: 10.1016/j.bbrc.2010.08.066] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Accepted: 08/17/2010] [Indexed: 02/03/2023]
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