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Zhang J, Shang J, Ding H, Li W, Li Z, Yuan Z, Zheng H, Lou Y, Wei Z, Zhou H, Feng S, Kong X, Ran N. Nicotinamide Riboside Promotes the Proliferation of Endogenous Neural Stem Cells to Repair Spinal Cord Injury. Stem Cell Rev Rep 2024:10.1007/s12015-024-10747-x. [PMID: 38941038 DOI: 10.1007/s12015-024-10747-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2024] [Indexed: 06/29/2024]
Abstract
Activation of endogenous neural stem cells (NSC) is one of the most potential measures for neural repair after spinal cord injury. However, methods for regulating neural stem cell behavior are still limited. Here, we investigated the effects of nicotinamide riboside promoting the proliferation of endogenous neural stem cells to repair spinal cord injury. Nicotinamide riboside promotes the proliferation of endogenous neural stem cells and regulates their differentiation into neurons. In addition, nicotinamide riboside significantly restored lower limb motor dysfunction caused by spinal cord injury. Nicotinamide riboside plays its role in promoting the proliferation of neural stem cells by activating the Wnt signaling pathway through the LGR5 gene. Knockdown of the LGR5 gene by lentivirus eliminates the effect of nicotinamide riboside on the proliferation of endogenous neural stem cells. In addition, administration of Wnt pathway inhibitors also eliminated the proliferative effect of nicotinamide riboside. Collectively, these findings demonstrate that nicotinamide promotes the proliferation of neural stem cells by targeting the LGR5 gene to activate the Wnt pathway, which provides a new way to repair spinal cord injury.
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Affiliation(s)
- Jianping Zhang
- Tianjin Key Laboratory of Spine and Spinal Cord, National Spinal Cord Injury International Cooperation Base, Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
- Institute of Orthopaedic & Musculoskeletal Science, Division of Surgery and Interventional Science, University College London, Royal National Orthopaedic Hospital, London, HA7 4LP, UK
| | - Jun Shang
- Institute of Medical Sciences, The Second Hospital & Orthopedic Research Center of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Han Ding
- Tianjin Key Laboratory of Spine and Spinal Cord, National Spinal Cord Injury International Cooperation Base, Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Wenxiang Li
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zonghao Li
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zhongze Yuan
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Han Zheng
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - YongFu Lou
- Institute of Medical Sciences, The Second Hospital & Orthopedic Research Center of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zhijian Wei
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Hengxing Zhou
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Shiqing Feng
- Institute of Medical Sciences, The Second Hospital & Orthopedic Research Center of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Tianjin Key Laboratory of Spine and Spinal Cord, National Spinal Cord Injury International Cooperation Base, Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, China.
| | - Xiaohong Kong
- Institute of Medical Sciences, The Second Hospital & Orthopedic Research Center of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
| | - Ning Ran
- Institute of Medical Sciences, The Second Hospital & Orthopedic Research Center of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
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2
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Adjei‐Sowah EA, O'Connor SA, Veldhuizen J, Lo Cascio C, Plaisier C, Mehta S, Nikkhah M. Investigating the Interactions of Glioma Stem Cells in the Perivascular Niche at Single-Cell Resolution using a Microfluidic Tumor Microenvironment Model. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201436. [PMID: 35619544 PMCID: PMC9313491 DOI: 10.1002/advs.202201436] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/25/2022] [Indexed: 05/03/2023]
Abstract
The perivascular niche (PVN) is a glioblastoma tumor microenvironment (TME) that serves as a safe haven for glioma stem cells (GSCs), and acts as a reservoir that inevitably leads to tumor recurrence. Understanding cellular interactions in the PVN that drive GSC treatment resistance and stemness is crucial to develop lasting therapies for glioblastoma. The limitations of in vivo models and in vitro assays have led to critical knowledge gaps regarding the influence of various cell types in the PVN on GSCs behavior. This study developed an organotypic triculture microfluidic model as a means to recapitulate the PVN and study its impact on GSCs. This triculture platform, comprised of endothelial cells (ECs), astrocytes, and GSCs, is used to investigate GSC invasion, proliferation and stemness. Both ECs and astrocytes significantly increased invasiveness of GSCs. This study futher identified 15 ligand-receptor pairs using single-cell RNAseq with putative chemotactic mechanisms of GSCs, where the receptor is up-regulated in GSCs and the diffusible ligand is expressed in either astrocytes or ECs. Notably, the ligand-receptor pair SAA1-FPR1 is demonstrated to be involved in chemotactic invasion of GSCs toward PVN. The novel triculture platform presented herein can be used for therapeutic development and discovery of molecular mechanisms driving GSC biology.
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Affiliation(s)
| | - Samantha A. O'Connor
- School of Biological and Health Systems EngineeringArizona State UniversityTempeAZ85287‐9709USA
| | - Jaimeson Veldhuizen
- School of Biological and Health Systems EngineeringArizona State UniversityTempeAZ85287‐9709USA
| | - Costanza Lo Cascio
- Ivy Brain Tumor Center, Barrow Neurological InstituteSt. Joseph's Hospital and Medical Center350 W Thomas RdPhoenixAZ85013USA
| | - Christopher Plaisier
- School of Biological and Health Systems EngineeringArizona State UniversityTempeAZ85287‐9709USA
| | - Shwetal Mehta
- Ivy Brain Tumor Center, Barrow Neurological InstituteSt. Joseph's Hospital and Medical Center350 W Thomas RdPhoenixAZ85013USA
| | - Mehdi Nikkhah
- School of Biological and Health Systems EngineeringArizona State UniversityTempeAZ85287‐9709USA
- Virginia G. Piper Biodesign Center for Personalized DiagnosticsArizona State UniversityTempeAZ85287‐9709USA
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3
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Moyama C, Fujita M, Ando S, Taniguchi K, Ii H, Tanigawa S, Hashimoto N, Nakata S. Stat5b inhibition blocks proliferation and tumorigenicity of glioblastoma stem cells derived from a de novo murine brain cancer model. Am J Cancer Res 2022; 12:1129-1142. [PMID: 35411230 PMCID: PMC8984887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/19/2021] [Indexed: 06/14/2023] Open
Abstract
Glioblastoma (GBM) is the most common and malignant type of brain cancer in adults with poor prognosis. GBM stem cells (GSCs) reside within niches in GBM tissues and contribute to recurrence and therapy resistance. Previous studies have shown that expression of leucine-rich repeat-containing G-protein coupled receptor 5 (Lgr5), a Wnt pathway-related stem cell marker, correlates with a poor prognosis in GBM, and its knockdown in GSCs induces apoptosis accompanied with downregulation of signal transducer and activator of transcription 5b (Stat5b). Here, we show that Stat5b co-localizes with Lgr5 in hypoxia-inducible factor 2α (Hif2α)-positive regions in GBM tissues. Functional analyses using GSCs derived from a murine de novo GBM model induced by oncogenic genes transduction using the Sleeping-Beauty transposon system revealed that expression of Stat5b was induced by culturing under hypoxia together with Lgr5, repressed by Hif2α knockdown, and reduced by Lgr5 knockdown or a Wnt/β-catenin signaling inhibitor ICG-001 treatment. Stat5b inhibition in the GSCs induced apoptosis and caused downregulation of Cyclin E2 resulted in blockade of entry into S-phase in the cell cycle. Disruption of Stat5b in an orthotopic transplantation model significantly prolongs event-free survival. These results suggest that Stat5b, regulated by hypoxia and the Wnt pathway, plays an important role in the maintenance and tumorigenicity of GSCs and may be a promising therapeutic molecular target to attack GSCs.
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Affiliation(s)
- Chiami Moyama
- Department of Clinical Oncology, Kyoto Pharmaceutical UniversityKyoto 607-8414, Japan
| | - Mitsugu Fujita
- Center for Medical Education and Clinical Training, Faculty of Medicine, Kindai UniversityOsaka 577-8502, Japan
| | - Shota Ando
- Department of Clinical Oncology, Kyoto Pharmaceutical UniversityKyoto 607-8414, Japan
| | - Keiko Taniguchi
- Department of Clinical Oncology, Kyoto Pharmaceutical UniversityKyoto 607-8414, Japan
- Department of Drug Discovery Medicine, Kyoto Prefectural University of MedicineKyoto 602-8566, Japan
| | - Hiromi Ii
- Department of Clinical Oncology, Kyoto Pharmaceutical UniversityKyoto 607-8414, Japan
| | - Seisuke Tanigawa
- Department of Neurosurgery, Graduate School of Medical Science, Kyoto Prefectural UniversityKyoto 602-8566, Japan
| | - Naoya Hashimoto
- Department of Neurosurgery, Graduate School of Medical Science, Kyoto Prefectural UniversityKyoto 602-8566, Japan
| | - Susumu Nakata
- Department of Clinical Oncology, Kyoto Pharmaceutical UniversityKyoto 607-8414, Japan
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4
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Tanigawa S, Fujita M, Moyama C, Ando S, Ii H, Kojima Y, Fujishita T, Aoki M, Takeuchi H, Yamanaka T, Takahashi Y, Hashimoto N, Nakata S. Inhibition of Gli2 suppresses tumorigenicity in glioblastoma stem cells derived from a de novo murine brain cancer model. Cancer Gene Ther 2021; 28:1339-1352. [PMID: 33414520 DOI: 10.1038/s41417-020-00282-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/26/2020] [Accepted: 12/04/2020] [Indexed: 01/29/2023]
Abstract
The prognosis of glioblastoma remains poor despite intensive research efforts. Glioblastoma stem cells (GSCs) contribute to tumorigenesis, invasive capacity, and therapy resistance. Leucine-rich repeat-containing G-protein coupled receptor 5 (Lgr5), a stem cell marker, is involved in the maintenance of GSCs, although the properties of Lgr5-positive GSCs remain unclear. Here, the Sleeping-Beauty transposon-induced glioblastoma model was used in Lgr5-GFP knock-in mice identify GFP-positive cells in neurosphere cultures from mouse glioblastoma tissues. Global gene expression analysis showed that Gli2 was highly expressed in GFP-positive GSCs. Gli2 knockdown using lentiviral-mediated shRNA downregulated Hedgehog-related and Wnt signaling pathway-related genes, including Lgr5; suppressed tumor cell proliferation and invasion capacity; and induced apoptosis. Pharmacological Gli inhibition with GANT61 suppressed tumor cell proliferation. Silencing Gli2 suppressed the tumorigenicity of GSCs in an orthotopic transplantation model in vivo. These findings suggest that Gli2 affects the Hedgehog and Wnt pathways and plays an important role in GSC maintenance, suggesting Gli2 as a therapeutic target for glioblastoma treatment.
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Affiliation(s)
- Seisuke Tanigawa
- Department of Clinical Oncology, Kyoto Pharmaceutical University, Kyoto, Japan.,Department of Neurosurgery, Kyoto Prefectural University Graduate School of Medical Science, Kyoto, Japan
| | - Mitsugu Fujita
- Department of Microbiology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Chiami Moyama
- Department of Clinical Oncology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Shota Ando
- Department of Clinical Oncology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Hiromi Ii
- Department of Clinical Oncology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Yasushi Kojima
- Division of Pathophysiology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Teruaki Fujishita
- Division of Pathophysiology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Masahiro Aoki
- Division of Pathophysiology, Aichi Cancer Center Research Institute, Nagoya, Japan.,Department of Cancer Physiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hayato Takeuchi
- Department of Neurosurgery, Kyoto Prefectural University Graduate School of Medical Science, Kyoto, Japan
| | - Takumi Yamanaka
- Department of Neurosurgery, Kyoto Prefectural University Graduate School of Medical Science, Kyoto, Japan
| | - Yoshinobu Takahashi
- Department of Neurosurgery, Kyoto Prefectural University Graduate School of Medical Science, Kyoto, Japan
| | - Naoya Hashimoto
- Department of Neurosurgery, Kyoto Prefectural University Graduate School of Medical Science, Kyoto, Japan
| | - Susumu Nakata
- Department of Clinical Oncology, Kyoto Pharmaceutical University, Kyoto, Japan.
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5
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Hwang M, Han MH, Park HH, Choi H, Lee KY, Lee YJ, Kim JM, Cheong JH, Ryu JI, Min KW, Oh YH, Ko Y, Koh SH. LGR5 and Downstream Intracellular Signaling Proteins Play Critical Roles in the Cell Proliferation of Neuroblastoma, Meningioma and Pituitary Adenoma. Exp Neurobiol 2019; 28:628-641. [PMID: 31698554 PMCID: PMC6844835 DOI: 10.5607/en.2019.28.5.628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 09/09/2019] [Accepted: 09/19/2019] [Indexed: 12/15/2022] Open
Abstract
Leucine-rich repeat-containing G-protein coupled receptor 5 (LGR5) has been reported to play critical roles in the proliferation of various cancer cells. However, the roles of LGR5 in brain tumors and the specific intracellular signaling proteins directly associated with it remain unknown. Expression of LGR5 was first measured in normal brain tissue, meningioma, and pituitary adenoma of humans. To identify the downstream signaling pathways of LGR5, siRNA-mediated knockdown of LGR5 was performed in SH-SY5Y neuroblastoma cells followed by proteomics analysis with 2-dimensional polyacrylamide gel electrophoresis (2D-PAGE). In addition, the expression of LGR5-associated proteins was evaluated in LGR5-inhibited neuroblastoma cells and in human normal brain, meningioma, and pituitary adenoma tissue. Proteomics analysis showed 12 protein spots were significantly different in expression level (more than two-fold change) and subsequently identified by peptide mass fingerprinting. A protein association network was constructed from the 12 identified proteins altered by LGR5 knockdown. Direct and indirect interactions were identified among the 12 proteins. HSP 90-beta was one of the proteins whose expression was altered by LGR5 knockdown. Likewise, we observed decreased expression of proteins in the hnRNP subfamily following LGR5 knockdown. In addition, we have for the first time identified significantly higher hnRNP family expression in meningioma and pituitary adenoma compared to normal brain tissue. Taken together, LGR5 and its downstream signaling play critical roles in neuroblastoma and brain tumors such as meningioma and pituitary adenoma.
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Affiliation(s)
- Mina Hwang
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Myung-Hoon Han
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Hyun-Hee Park
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Hojin Choi
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Kyu-Yong Lee
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Young Joo Lee
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Jae Min Kim
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Jin Hwan Cheong
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Je Il Ryu
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Kyueng-Whan Min
- Department of Pathology, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Young-Ha Oh
- Department of Pathology, Hanyang University Guri Hospital, Guri 11923, Korea
| | - Yong Ko
- Department of Neurosurgery, Hanyang University Medical Center, Seoul 04763, Korea
| | - Seong-Ho Koh
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, Korea.,Department of Translational Medicine, Hanyang University Graduate School of Biomedical Science & Engineering, Seoul 04763, Korea
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6
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Wang W, Li Y, Ma Q, Yan H, Su W. Differentiation antagonizing non-protein coding RNA modulates the proliferation, migration, and angiogenesis of glioma cells by targeting the miR-216a/LGR5 axis and the PI3K/AKT signaling pathway. Onco Targets Ther 2019; 12:2439-2449. [PMID: 31114219 PMCID: PMC6497507 DOI: 10.2147/ott.s196851] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/04/2019] [Indexed: 01/02/2023] Open
Abstract
Purpose: DANCR plays an important role in various types of cancer. However, its role in gliomas remains unclear. In the present study, we aimed to investigate the mechanism underlying the role of DANCR in gliomas. Methods: DANCR expression was measured by qRT-PCR, and expression of LGR5, PI3K, AKT, and phosphorylated AKT (p-AKT) was detected by western blotting. The combination of miR-216a and DANCR was quantified by Luciferase reporter assays. Proliferation, apoptosis and cell cycle, migration and invasion, and angiogenesis of glioma cells were measured by MTT, flow cytometry, Transwell, and Tube formation assays, respectively. Results: DANCR expression was significantly higher in glioma cells than in normal human astrocytes. Silencing of DANCR inhibited proliferation, migration, invasion, and angiogenesis of glioma cells, promoted apoptosis, blocked the cell cycle at the G1/S transition, and reduced LGR5, PI3K, and p-AKT expression. We identified miR-216a as a direct target of DANCR. Silencing of DANCR in glioma cells increased miR-216a expression. Further, miR-216a suppression increased proliferation, migration, invasion, and angiogenesis and inhibited apoptosis of glioma cells transfected with DANCR-targeting siRNA. In addition, miR-216a suppression compromised inhibition of the G1/S transition caused by DANCR silencing. Furthermore, suppression of miR-216a increased accumulation of LGR5, PI3K, AKT, and p-AKT in glioma cells transfected with DANCR-targeting siRNA. Conclusion: DANCR modulates growth and metastasis by targeting the miR-216a/LGR5 axis and PI3K/AKT signaling pathway.
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Affiliation(s)
- Wei Wang
- Department of Medical Oncology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, People's Republic of China
| | - Yulian Li
- Department of Pathology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, People's Republic of China
| | - Qinghai Ma
- Department of Neurosurgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, People's Republic of China
| | - Haicheng Yan
- Department of Neurosurgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, People's Republic of China
| | - Wuyun Su
- Department of Medical Oncology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, People's Republic of China
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7
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Xie Y, Sundström A, Maturi NP, Tan EJ, Marinescu VD, Jarvius M, Tirfing M, Jin C, Chen L, Essand M, Swartling FJ, Nelander S, Jiang Y, Uhrbom L. LGR5 promotes tumorigenicity and invasion of glioblastoma stem-like cells and is a potential therapeutic target for a subset of glioblastoma patients. J Pathol 2019; 247:228-240. [PMID: 30357839 DOI: 10.1002/path.5186] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/10/2018] [Accepted: 10/18/2018] [Indexed: 01/09/2023]
Abstract
Glioblastoma (GBM) is the most common and lethal primary malignant brain tumor which lacks efficient treatment and predictive biomarkers. Expression of the epithelial stem cell marker Leucine-rich repeat-containing G-protein coupled receptor 5 (LGR5) has been described in GBM, but its functional role has not been conclusively elucidated. Here, we have investigated the role of LGR5 in a large repository of patient-derived GBM stem cell (GSC) cultures. The consequences of LGR5 overexpression or depletion have been analyzed using in vitro and in vivo methods, which showed that, among those with highest LGR5 expression (LGR5high ), there were two phenotypically distinct groups: one that was dependent on LGR5 for its malignant properties and another that was unaffected by changes in LGR5 expression. The LGR5-responding cultures could be identified by their significantly higher self-renewal capacity as measured by extreme limiting dilution assay (ELDA), and these LGR5high -ELDAhigh cultures were also significantly more malignant and invasive compared to the LGR5high -ELDAlow cultures. This showed that LGR5 expression alone would not be a strict marker of LGR5 responsiveness. In a search for additional biomarkers, we identified LPAR4, CCND2, and OLIG2 that were significantly upregulated in LGR5-responsive GSC cultures, and we found that OLIG2 together with LGR5 were predictive of GSC radiation and drug response. Overall, we show that LGR5 regulates the malignant phenotype in a subset of patient-derived GSC cultures, which supports its potential as a predictive GBM biomarker. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Yuan Xie
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - Anders Sundström
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - Naga P Maturi
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - E-Jean Tan
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - Voichita D Marinescu
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden.,Department of Medical Biochemistry and Microbiology, Biomedical Centre, Uppsala University and Science for Life Laboratory, Uppsala, Sweden
| | - Malin Jarvius
- Department of Medical Sciences, Cancer Pharmacology and Computational Medicine, Uppsala University and Science for Life Laboratory, Uppsala, Sweden
| | - Malin Tirfing
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - Chuan Jin
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - Lei Chen
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - Magnus Essand
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - Fredrik J Swartling
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - Sven Nelander
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
| | - Yiwen Jiang
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden.,Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, Stockholm, Sweden
| | - Lene Uhrbom
- Department of Immunology, Genetics and Pathology, Uppsala University and Science for Life Laboratory, Rudbeck Laboratory, Uppsala, Sweden
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8
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Glowacka WK, Jain H, Okura M, Maimaitiming A, Mamatjan Y, Nejad R, Farooq H, Taylor MD, Aldape K, Kongkham P. 5-Hydroxymethylcytosine preferentially targets genes upregulated in isocitrate dehydrogenase 1 mutant high-grade glioma. Acta Neuropathol 2018; 135:617-634. [PMID: 29428975 PMCID: PMC5978937 DOI: 10.1007/s00401-018-1821-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 01/18/2018] [Accepted: 02/07/2018] [Indexed: 01/12/2023]
Abstract
Gliomas demonstrate epigenetic dysregulation exemplified by the Glioma CpG Island Methylator Phenotype (G-CIMP) seen in IDH1 mutant tumors. 5-Hydroxymethylcytosine (5hmC) is implicated in glioma pathogenesis; however, its role in IDH1 mutant gliomas is incompletely understood. To characterize 5hmC in IDH1 mutant gliomas further, we examine 5hmC in a cohort of IDH1 mutant and wild-type high-grade gliomas (HGG) using a quantitative locus-specific approach. Regions demonstrating high 5hmC abundance and differentially hydroxymethylated regions (DHMR) enrich for enhancers implicated in glioma pathogenesis. Among these regions, IDH1 mutant tumors possess greater 5hmC compared to wild type. 5hmC contributes to overall methylation status of G-CIMP genes. 5hmC targeting gene body regions correlates significantly with increased gene expression. In particular, a strong correlation between increased 5hmC and increased gene expression is identified for genes highly expressed in the IDH1 mutant cohort. Overall, locus-specific gain of 5hmC targeting regulatory regions and associated with overexpressed genes suggests a significant role for 5hmC in IDH1 mutant HGG.
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9
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Jiang Y, Miao J, Wang D, Zhou J, Liu B, Jiao F, Liang J, Wang Y, Fan C, Zhang Q. MAP30 promotes apoptosis of U251 and U87 cells by suppressing the LGR5 and Wnt/β-catenin signaling pathway, and enhancing Smac expression. Oncol Lett 2018; 15:5833-5840. [PMID: 29556310 DOI: 10.3892/ol.2018.8073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 11/16/2017] [Indexed: 12/15/2022] Open
Abstract
Significant antitumor activity of Momordica anti-human immunodeficiency virus protein of 30 kDa (MAP30) purified from Momordica charantia has been the subject of previous research. However, the effective mechanism of MAP30 on malignant glioma cells has not yet been clarified. The aim of the present study was to investigate the effects and mechanism of MAP30 on U87 and U251 cell lines. A Cell Counting Kit-8 assay, wound healing assay and Transwell assay were used to detect the effects on U87 and U251 cells treated with different concentrations of MAP30 (0.5, 1, 2, 4, 8 and 16 µM) over different periods of time. Proliferation, migration and invasion of each cell line were markedly inhibited by MAP30 in a dose- and time-dependent manner. Flow cytometry and fluorescence staining demonstrated that apoptosis increased and the cell cycle was arrested in S-phase in the two investigated cell lines following MAP30 treatment. Western blot analysis demonstrated that leucine-rich-repeat-containing G-protein-coupled receptor 5 (LGR5) expression and key proteins in the Wnt/β-catenin signaling pathway were apparently decreased, whereas second mitochondria-derived activator of caspase (Smac) protein expression significantly increased with MAP30 treatment in the same manner. These results suggest that MAP30 markedly induces apoptosis in U87 and U251 cell lines by suppressing LGR5 and the Wnt/β-catenin signaling pathway, and enhancing Smac expression in a dose- and time-dependent manner.
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Affiliation(s)
- Yilin Jiang
- Department of Neurosurgery, Peking University People's Hospital, Peking University, Beijing 100044, P.R. China
| | - Junjie Miao
- Department of Neurosurgery, Peking University People's Hospital, Peking University, Beijing 100044, P.R. China
| | - Dongliang Wang
- Department of Neurosurgery, Peking University People's Hospital, Peking University, Beijing 100044, P.R. China
| | - Jingru Zhou
- Department of Neurosurgery, Peking University People's Hospital, Peking University, Beijing 100044, P.R. China
| | - Bo Liu
- Department of Neurosurgery, Peking University People's Hospital, Peking University, Beijing 100044, P.R. China
| | - Feng Jiao
- Department of Neurosurgery, Peking University People's Hospital, Peking University, Beijing 100044, P.R. China
| | - Jiangfeng Liang
- Department of Neurosurgery, Peking University International Hospital, Beijing 102206, P.R. China
| | - Yangshuo Wang
- Department of Neurosurgery, Peking University People's Hospital, Peking University, Beijing 100044, P.R. China
| | - Cungang Fan
- Department of Neurosurgery, Peking University People's Hospital, Peking University, Beijing 100044, P.R. China
| | - Qingjun Zhang
- Department of Neurosurgery, Peking University People's Hospital, Peking University, Beijing 100044, P.R. China
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10
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Zhang J, Xu K, Shi L, Zhang L, Zhao Z, Xu H, Liang F, Li H, Zhao Y, Xu X, Tian Y. Overexpression of MicroRNA-216a Suppresses Proliferation, Migration, and Invasion of Glioma Cells by Targeting Leucine-Rich Repeat-Containing G Protein-Coupled Receptor 5. Oncol Res 2017; 25:1317-1327. [PMID: 28256193 PMCID: PMC7840945 DOI: 10.3727/096504017x14874323871217] [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] [Indexed: 12/21/2022] Open
Abstract
Increasing studies have suggested that microRNAs (miRNAs) are involved in the development of gliomas. MicroRNA-216a has been reported to be a tumor-associated miRNA in many types of cancer, either as an oncogene or as a tumor suppressor. However, little is known about the function of miR-216a in gliomas. The present study was designed to explore the potential role of miR-216a in gliomas. We found that miR-216a was significantly decreased in glioma tissues and cell lines. Overexpression of miR-216a significantly suppressed the proliferation, migration, and invasion of glioma cells. Leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5) was identified as a target gene of miR-216a in glioma cells by bioinformatics analysis, dual-luciferase reporter assay, real-time quantitative polymerase chain reaction, and Western blot analysis. Moreover, miR-216a overexpression inhibited the Wnt/β-catenin signaling pathway. The restoration of LGR5 expression markedly reversed the antitumor effect of miR-216a in glioma cells. Taken together, these findings suggest a tumor suppressor role for miR-216a in gliomas, which inhibits glioma cell proliferation, migration, and invasion by targeting LGR5. Our study suggests that miR-216a may serve as a potential therapeutic target for future glioma treatment.
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11
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Forgham H, Johnson D, Carter N, Veuger S, Carr-Wilkinson J. Stem Cell Markers in Neuroblastoma-An Emerging Role for LGR5. Front Cell Dev Biol 2015; 3:77. [PMID: 26697427 PMCID: PMC4667032 DOI: 10.3389/fcell.2015.00077] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 11/18/2015] [Indexed: 01/14/2023] Open
Abstract
The prognostic value of cancer stem cell markers in various cancer subtypes is a well documented research area. Our findings show that the stem cell marker Lgr5 is associated with an aggressive phenotype in neuroblastoma. Here, we discuss these findings within the context of recent studies in several cancers such as lung, colorectal and intestinal cancer, glioblastoma and ewing's sarcoma. Neuroblastoma continues to be an elusive disease, due to its heterogeneous presentation ranging from spontaneous regression to aggressive metastatic disease and intertwined genetic variability. Currently, the most significant prognostic marker of high risk disease and poor prognosis is amplification of the MYCN oncogene, which is found in approximately 25% of cases (Huang and Weiss, 2013). With this in mind, there is still much to learn about the driving mechanisms of this aggressive pediatric tumor. Neuroblastoma development is thought to be the result of aberrant differentiation of the cell of origin, embryonic neural crest cells which then migrate and invade during the developmental stage (Joshi et al., 2007). Aberrant cells are those which would, under normal conditions form the mature tissues of the sympathetic ganglia and adrenal medulla. Tumors are known to develop indiscriminately along the radius of the sympathetic ganglia, although it is well established that the adrenal glands are fundamentally the most common primary site (Jessen and Mirsky, 2005).
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Affiliation(s)
- Helen Forgham
- Cancer Biology Group, Department of Pharmacy, Health and Well Being, Cancer Biology and Therapeutics, Faculty of Applied Sciences, University of Sunderland Sunderland, UK ; Children's Cancer Institute, University of New South Wales Sydney, NSW, Australia
| | - Darren Johnson
- Cancer Biology Group, Department of Pharmacy, Health and Well Being, Cancer Biology and Therapeutics, Faculty of Applied Sciences, University of Sunderland Sunderland, UK
| | - Noel Carter
- Cancer Biology Group, Department of Pharmacy, Health and Well Being, Cancer Biology and Therapeutics, Faculty of Applied Sciences, University of Sunderland Sunderland, UK
| | - Stephany Veuger
- Cancer Biology Group, Department of Pharmacy, Health and Well Being, Cancer Biology and Therapeutics, Faculty of Applied Sciences, University of Sunderland Sunderland, UK
| | - Jane Carr-Wilkinson
- Cancer Biology Group, Department of Pharmacy, Health and Well Being, Cancer Biology and Therapeutics, Faculty of Applied Sciences, University of Sunderland Sunderland, UK ; Paediatric Oncology and Haematology, Newcastle Cancer Centre at The Northern Institute for Cancer Research, Newcastle University Newcastle Upon Tyne, UK
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12
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Miao J, Jiang Y, Wang D, Zhou J, Fan C, Jiao F, Liu B, Zhang J, Wang Y, Zhang Q. Trichosanthin suppresses the proliferation of glioma cells by inhibiting LGR5 expression and the Wnt/β-catenin signaling pathway. Oncol Rep 2015; 34:2845-52. [PMID: 26397053 PMCID: PMC4722885 DOI: 10.3892/or.2015.4290] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 08/20/2015] [Indexed: 01/16/2023] Open
Abstract
Studies have indicated that trichosanthin (TCS), a bioactive protein extracted and purified from the tuberous root of Trichosanthes kirilowii (a well-known traditional Chinese medicinal plant), produces antitumor effects on various types of cancer cells. However, the effects of TCS on glioma cells are poorly understood. The objective of this study was to investigate the antitumor effects of TCS on the U87 and U251 cell lines. The in vitro effects of TCS on these two cell lines were determined using a Cell Counting Kit-8 (CCK-8) assay, Annexin V-FITC staining, DAPI staining, Transwell assays, terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) assays, 5,5′,6,6′-tetrachloro-1,1′,3,3′-tetraethyl-imidacar-bocyanine iodide (JC-1) staining and western blotting, which was utilized to assess the expression of leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5) and key proteins in the Wnt/β-catenin signaling pathway. Our data indicated that TCS inhibited the proliferation of glioma cells in a dose- and time-dependent manner and played a role in inhibiting glioma cell invasion and migration. Additional investigation revealed that the expression levels of LGR5 and of key proteins in the Wnt/β-catenin signaling pathway were markedly decreased after TCS treatment. The results suggest that TCS may induce apoptosis in glioma cells by targeting LGR5 and repressing the Wnt/β-catenin signaling pathway. In the future, in vivo experiments should be conducted to examine the potential use of this compound as a novel therapeutic agent for gliomas.
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Affiliation(s)
- Junjie Miao
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Yilin Jiang
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Dongliang Wang
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Jingru Zhou
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Cungang Fan
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Feng Jiao
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Bo Liu
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Jun Zhang
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Yangshuo Wang
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Qingjun Zhang
- Department of Neurosurgery, Peking University People's Hospital, Beijing 100044, P.R. China
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13
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Hiraoka K, Hayashi T, Kaneko R, Nasu-Nishimura Y, Koyama-Nasu R, Kawasaki Y, Akiyama T. SOX9-mediated upregulation of LGR5 is important for glioblastoma tumorigenicity. Biochem Biophys Res Commun 2015; 460:216-21. [DOI: 10.1016/j.bbrc.2015.03.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 03/03/2015] [Indexed: 01/03/2023]
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14
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Lin YU, Wu T, Yao Q, Zi S, Cui L, Yang M, Li J. LGR5 promotes the proliferation of colorectal cancer cells via the Wnt/β-catenin signaling pathway. Oncol Lett 2015; 9:2859-2863. [PMID: 26137160 DOI: 10.3892/ol.2015.3144] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Accepted: 02/02/2015] [Indexed: 02/06/2023] Open
Abstract
Leucine-rich repeat-containing G-protein coupled receptor 5 (LGR5) is an established cancer stem cell marker and is a target gene of the Wnt/β-catenin signaling pathway, a critical pathway in the process of tumor initiation and growth. In the present study, the mRNA expression levels of LGR5, adenomatous polyposis coli (APC) and β-catenin were detected in 20 colorectal cancer (CRC) tissues and matched healthy mucosa samples using reverse transcription-quantitative polymerase chain reaction. HT-29 CRC cell line was treated with siRNA-Lgr5; the APC, β-catenin and LGR5 RNA expressions were detected and cell viability was measured using a CCK8 assay. The results revealed that LGR5 was significantly overexpressed in CRC tissue compared with healthy mucosa (P<0.05). Furthermore, knockdown of LGR5 by small interfering RNA decreased the expression of APC and β-catenin in HT29 colon cancer cells as well as inhibited the proliferation of HT29 cells. These findings demonstrated that LGR5 expression is critical for the promotion of neoplastic CRC cell proliferation, indicating that LGR5 may be a novel therapeutic target for CRC.
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Affiliation(s)
- Y U Lin
- Department of Colorectal Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China ; Department of Colorectal Surgery, Union Hospital, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Tingyu Wu
- Department of Colorectal Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Qianqian Yao
- Department of Colorectal Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Shuming Zi
- Department of Colorectal Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Long Cui
- Department of Colorectal Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China ; Shanghai Colorectal Cancer Research Centre, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Ming Yang
- Department of Colorectal Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Jinming Li
- Department of Colorectal Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China ; Shanghai Colorectal Cancer Research Centre, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
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15
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Chen YH, McGowan LD, Cimino PJ, Dahiya S, Leonard JR, Lee DY, Gutmann DH. Mouse low-grade gliomas contain cancer stem cells with unique molecular and functional properties. Cell Rep 2015; 10:1899-912. [PMID: 25772366 DOI: 10.1016/j.celrep.2015.02.041] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/16/2015] [Accepted: 02/14/2015] [Indexed: 01/19/2023] Open
Abstract
The availability of adult malignant glioma stem cells (GSCs) has provided unprecedented opportunities to identify the mechanisms underlying treatment resistance. Unfortunately, there is a lack of comparable reagents for the study of pediatric low-grade glioma (LGG). Leveraging a neurofibromatosis 1 (Nf1) genetically engineered mouse LGG model, we report the isolation of CD133(+) multi-potent low-grade glioma stem cells (LG-GSCs), which generate glioma-like lesions histologically similar to the parent tumor following injection into immunocompetent hosts. In addition, we demonstrate that these LG-GSCs harbor selective resistance to currently employed conventional and biologically targeted anti-cancer agents, which reflect the acquisition of new targetable signaling pathway abnormalities. Using transcriptomic analysis to identify additional molecular properties, we discovered that mouse and human LG-GSCs harbor high levels of Abcg1 expression critical for protecting against ER-stress-induced mouse LG-GSC apoptosis. Collectively, these findings establish that LGG cancer stem cells have unique molecular and functional properties relevant to brain cancer treatment.
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Affiliation(s)
- Yi-Hsien Chen
- Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | | | - Patrick J Cimino
- Department of Pathology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Sonika Dahiya
- Department of Pathology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Jeffrey R Leonard
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Da Yong Lee
- Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - David H Gutmann
- Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA.
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16
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Chen Q, Cao HZ, Zheng PS. LGR5 promotes the proliferation and tumor formation of cervical cancer cells through the Wnt/β-catenin signaling pathway. Oncotarget 2014; 5:9092-105. [PMID: 25193857 PMCID: PMC4253421 DOI: 10.18632/oncotarget.2377] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 08/20/2014] [Indexed: 01/02/2023] Open
Abstract
Leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5), a seven transmembrane receptor known as a potential stem cell marker for intestinal crypts and hair follicles, has recently been found to be overexpressed in some types of human cancers. However, the role of LGR5 in cervical cancer remains unclear. In this study, the expression of LGR5 gradually increases from normal cervix to cervical cancer in situ and to cervical cancers as revealed by immunohistochemistry and western blot analyses. Through knocking down or overexpressing LGR5 in SiHa and HeLa cells, the expression level of LGR5 was found to be positively related to cell proliferation in vitro and to tumor formation in vivo. Further investigation indicated that LGR5 protein could significantly promote the acceleration of cell cycle. Moreover, the TOP-Flash reporter assay and western blot for β-catenin, cyclinD1, and c-myc proteins, target genes of the Wnt/β-catenin pathway, indicated that LGR5 significantly activated Wnt/β-catenin signaling. Additionally, the blockage of Wnt/β-catenin pathway resulted in a significant inhibition of cell proliferation induced by LGR5. Taken together, these results demonstrate that LGR5 can promote proliferation and tumor formation in cervical cancer cells by activating the Wnt/β-catenin pathway.
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Affiliation(s)
- Qing Chen
- Department of Reproductive Medicine, the First Affiliated Hospital, Xi'an Jiaotong University Medical School, Xi'an, the People's Republic of China
- Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Medical School, Xi'an, the People's Republic of China
| | - Hao-Zhe Cao
- Department of Reproductive Medicine, the First Affiliated Hospital, Xi'an Jiaotong University Medical School, Xi'an, the People's Republic of China
| | - Peng-Sheng Zheng
- Department of Reproductive Medicine, the First Affiliated Hospital, Xi'an Jiaotong University Medical School, Xi'an, the People's Republic of China
- Department of Biochemistry and Molecular Biology, Xi'an Jiaotong University Medical School, Xi'an, the People's Republic of China
- Division of Cancer Stem Cell Research, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University Medical School, Xi'an, the People's Republic of China
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17
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Parry PV, Engh JA. Knockdown of LGR5 suppresses the proliferation of glioma cells in vitro and in vivo. Neurosurgery 2014; 74:N14-5. [PMID: 24435145 DOI: 10.1227/01.neu.0000442976.61335.f6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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