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Wang Y, Yan R, Yang H, Liu Y, Zhong X, Liu S, Xie R, Ren L. Modular Microgel-Based Bioassembly Scaffold Induced Chondrogenic and Osteogenic Differentiation of BMSCs. Macromol Biosci 2024; 24:e2400051. [PMID: 38663437 DOI: 10.1002/mabi.202400051] [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: 02/06/2024] [Revised: 04/17/2024] [Indexed: 05/09/2024]
Abstract
Bioactive scaffolds capable of simultaneously repairing osteochondral defects remain a big challenge due to the heterogeneity of bone and cartilage. Currently modular microgel-based bioassembly scaffolds are emerged as potential solution to this challenge. Here, microgels based on methacrylic anhydride (MA) and dopamine modified gelatin (GelMA-DA) are loaded with chondroitin sulfate (CS) (the obtained microgel named GC Ms) or bioactive glass (BG) (the obtained microgel named GB Ms), respectively. GC Ms and GB Ms show good biocompatibility with BMSCs, which suggested by the adhesion and proliferation of BMSCs on their surfaces. Specially, GC Ms promote chondrogenic differentiation of BMSCs, while GB Ms promote osteogenic differentiation. Furthermore, the injectable GC Ms and GB Ms are assembled integrally by bottom-up in situ cross-linking to obtain modular microgel-based bioassembly scaffold (GC-GB/HM), which show a distinct bilayer structure and good porous properties and swelling properties. Particularly, the results of in vivo and in vitro experiments show that GC-GB/HM can simultaneously regulate the expression levels of chondrogenic- and osteogenesis-related genes and proteins. Therefore, modular microgel-based assembly scaffold in this work with the ability to promote bidirectional differentiation of BMSCs and has great potential for application in the minimally invasive treatment of osteochondral tissue defects.
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Affiliation(s)
- Yanyan Wang
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Ruyu Yan
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Hai Yang
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Ying Liu
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Xiupeng Zhong
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Sa Liu
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Renjian Xie
- School of Medical Information Engineering, Jiangxi Key Laboratory of Tissue Engineering, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases (Ministry of Education), Gannan Medical University, Ganzhou, 341000, China
| | - Li Ren
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
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2
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Liu Y, Zhang Z, Zhang Y, Luo B, Liu X, Cao Y, Pei R. Construction of adhesive and bioactive silk fibroin hydrogel for treatment of spinal cord injury. Acta Biomater 2023; 158:178-189. [PMID: 36584800 DOI: 10.1016/j.actbio.2022.12.048] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 12/09/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
Spinal cord injury (SCI) often causes severe and permanent disabilities due to the complexity of injury progression. The promising methods are generally based on tissue engineering technology using biocompatible hydrogels to achieve SCI repair. However, hydrogels are commonly incapable of close contact with the damaged spinal cord stumps and fail to support neural regeneration in SCI. Therefore, it is still a challenge to achieve stable contact with the transected nerve stumps and accelerate neural regeneration in the lesion microenvironment. Here, an in situ forming glycidyl methacrylated silk fibroin/ laminin-acrylate (SF-GMA/LM-AC) hydrogel was fabricated for SCI repair. The polymer chains formed a network quickly after ultraviolet (UV)-light trigger, in topological entanglement with the spinal cord, stitching the hydrogel and wet tissues together like a suture at the molecular scale. The SF-GMA/LM-AC hydrogel also provided a favorable environment for the growth of cells due to the incorporation of LM-AC. Compared with physical entrapment of LM, LM-AC immobilized in the hydrogel by covalent technology provided better microenvironments for neural stem cells (NSCs) growth. The repair of complete transection SCI in rats demonstrated that this hydrogel guided and promoted neural regeneration over 8 weeks, leading to hind limb locomotion recovery. This adhesive and bioactive SF-GMA/LM-AC hydrogel may open many opportunities in various therapeutic indications, including SCI. STATEMENT OF SIGNIFICANCE: Many materials have been developed for building transplanted scaffolds, but it is still a challenge to fabricate bioactive scaffolds and adhesion to wet tissues. In this study, we successfully developed an in situ forming SF-GMA/LM-AC hydrogel for SCI repair. This in situ forming hydrogel formed significant adhesion to the native spinal cord, stitching hydrogel and tissue together like a suture at the molecular scale. In addition, covalent immobilized LM-AC was used as the contact guidance biochemical cues for axonal outgrowth and had much better bioactive effects than physically entangled LM. Moreover, this universal strategy would open an avenue to fabricate adhesive and bioactive hydrogel for various disease treatments including SCI.
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Affiliation(s)
- Yuanshan Liu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Zhuangzhuang Zhang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yajie Zhang
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
| | - Bingqing Luo
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Xingzhu Liu
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yi Cao
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Renjun Pei
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
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Ouyang X, Wang S, Xie J, Kong J, Chunmei M, Pan H, Cao J, Chen D, Liu A. rno-miR-90 promotes chondrogenic differentiation of bone marrow mesenchymal stem cells by targeting SPARC-related modular calcium binding 2. Anat Rec (Hoboken) 2023. [PMID: 36691370 DOI: 10.1002/ar.25163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 12/12/2022] [Accepted: 12/19/2022] [Indexed: 01/25/2023]
Abstract
Bone marrow mesenchymal stem cells (BMSCs) have the ability to differentiate into chondrocytes. In the differentiation of BMSCs into chondrocytes, micro-RNAs (miRNAs) play an important role. rno-miR-90 is a new miRNA discovered by our research team, and its role in chondrogenic differentiation of BMSCs is unknown. This study aimed to investigate whether rno-miR-90 could promote chondrogenic differentiation of BMSCs by regulating secreted protein acidic and rich in cysteine-related modular calcium binding 2 (Smoc2). First, BMSCs chondroblast differentiation was successfully induced in vitro by classical induction method of transforming growth factor (TGF)-β3. On this basis, we transfected rno-miR-90 mimic and inhibitor, and confirmed that rno-miR-90 mimic could promote the differentiation of BMSCs into chondrocytes by real-time reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting. In addition, we demonstrated that Smoc2 was a target gene of rno-miR-90 by dual-luciferase reporter assay, and confirmed that rno-miR-90 mimic could inhibit the expression of Smoc2 by RT-qPCR and western blotting. In order to further prove the targeting relationship between rno-miR-90 and Smoc2, we constructed three interfering fragments of Smoc2, and proved that silencing Smoc2 could promote the differentiation of BMSCs into chondrocytes at the transcriptional and protein levels. Finally, we constructed a carrier scaffold for ectopic chondrogenic differentiation in vivo, and confirmed that rno-miR-90 mimic and siSmoc2 could promote chondrogenic differentiation of BMSCs by Alcian blue staining and immunohistochemistry. In summary, our results suggested that rno-miR-90 could promote chondrogenic differentiation of BMSCs by down-regulating the expression of Smoc2. rno-miR-90 mimic and Smoc2 may be therapeutic targets of osteoarthritis.
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Affiliation(s)
- Xiyan Ouyang
- Department of Anatomy, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, People's Republic of China
| | - Shuxian Wang
- Department of Anatomy, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, People's Republic of China
| | - Jinqi Xie
- Department of Anatomy, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, People's Republic of China
| | - Jiechen Kong
- Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, People's Republic of China
| | - Ma Chunmei
- Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, People's Republic of China
| | - Hao Pan
- Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, People's Republic of China
| | - Jiahui Cao
- Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, People's Republic of China
| | - Dongfeng Chen
- Department of Anatomy, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, People's Republic of China
| | - Aijun Liu
- Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, People's Republic of China
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Xu C, Hu X, Fan Y, Zhang L, Gao Z, Cai C. Wif1 Mediates Coordination of Bone Morphogenetic Protein and Wnt Signaling in Neural and Glioma Stem Cells. Cell Transplant 2022; 31:9636897221134540. [PMID: 36324293 PMCID: PMC9634200 DOI: 10.1177/09636897221134540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Wnts, bone morphogenetic protein (BMP), and fibroblast growth factor (FGF) are
paracrine signaling pathways implicated in the niche control of stem cell fate
decisions. BMP-on and Wnt-off are the dominant quiescent niche signaling
pathways in many cell types, including neural stem cells (NSCs). However, among
the multiple inhibitory family members of the Wnt pathway, those with direct
action after BMP4 stimulation in NSCs remain unclear. We examined 11 Wnt
inhibitors in NSCs after BMP4 treatment. Wnt inhibitory factor 1 (Wif1) has been
identified as the main factor reacting to BMP4 stimuli. RNA sequencing confirmed
that Wif1 was markedly upregulated after BMP4 treatment in different gene
expression analyses. Similar to the functional role of BMP4, Wif1 significantly
decreased the cell cycle of NSCs and significantly inhibited cell proliferation
(P < 0.05). Combined treatment with BMP4 and Wif1
significantly enhanced the inhibition of cell growth compared with the single
treatment (P < 0.05). Wif1 expression was clearly lower in
glioblastoma and low-grade glioma samples than in normal samples
(P < 0.05). A functional analysis revealed that both
BMP4 and Wif1 could decrease glioma cell growth. These effects were abrogated by
the BMP inhibitor Noggin. The collective findings demonstrate that Wif1 plays a
key role in quiescent NSC homeostasis and glioma cell growth downstream of
BMP-on signaling. The functional roles of Wif1/BMP4 in glioma cells may provide
a technical basis for regenerative medicine, drug discovery, and personal
molecular therapy in future clinical treatments.
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Affiliation(s)
- Congdi Xu
- Fundamental Research Center, Shanghai
YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of
Medicine, Tongji University, Shanghai, China
| | - Xinyu Hu
- Fundamental Research Center, Shanghai
YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of
Medicine, Tongji University, Shanghai, China,Institute for Molecules and Materials,
Radboud University, Nijmegen, The Netherlands
| | - Yantao Fan
- Fundamental Research Center, Shanghai
YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of
Medicine, Tongji University, Shanghai, China,Institute of Geriatrics (Shanghai
University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s
Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China
| | - Ling Zhang
- The First Rehabilitation Hospital of
Shanghai, School of Medicine, Tongji University, Shanghai, China
| | - Zhengliang Gao
- Fundamental Research Center, Shanghai
YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of
Medicine, Tongji University, Shanghai, China,Institute of Geriatrics (Shanghai
University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s
Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China
| | - Chunhui Cai
- Fundamental Research Center, Shanghai
YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of
Medicine, Tongji University, Shanghai, China,Institute of Geriatrics (Shanghai
University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s
Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China,Chunhui Cai, Fundamental Research Center,
Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation
Center), School of Medicine, Tongji University, Shanghai 200001, China.
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Chen C, Yang Y, Yao Y. HBO Promotes the Differentiation of Neural Stem Cells via Interactions Between the Wnt3/β-Catenin and BMP2 Signaling Pathways. Cell Transplant 2019; 28:1686-1699. [PMID: 31694396 PMCID: PMC6923559 DOI: 10.1177/0963689719883578] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Hyperbaric oxygen (HBO) therapy may promote neurological recovery from hypoxic-ischemic
encephalopathy (HIE). However, the therapeutic effects of HBO and its associated
mechanisms remain unknown. The canonical Wnt/β-catenin signaling pathways and bone
morphogenetic protein (BMP) play important roles in mammalian nervous system development.
The present study examined whether HBO stimulates the differentiation of neural stem cells
(NSCs) and its effect on Wnt3/β-catenin and BMP2 signaling pathways. We showed HBO
treatment (2 ATA, 60 min) promoted differentiation of NSCs into neurons and
oligodendrocytes in vitro. In addition, rat hypoxic-ischemic brain damage (HIBD) tissue
extracts also promoted the differentiation of NSCs into neurons and oligodendrocytes, with
the advantage of reducing the number of astrocytes. These effects were most pronounced
when these two were combined together. In addition, the expression of Wnt3a, BMP2, and
β-catenin nuclear proteins were increased after HBO treatment. However, blockade of
Wnt/β-catenin or BMP signaling inhibited NSC differentiation and reduced the expression of
Wnt3a, BMP2, and β-catenin nuclear proteins. In conclusion, HBO promotes differentiation
of NSCs into neurons and oligodendrocytes and reduced the number of astrocytes in vitro
possibly through regulation of Wnt3/β-catenin and BMP2 signaling pathways. HBO may serve
as a potential therapeutic strategy for treating HIE.
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Affiliation(s)
- Chongfeng Chen
- Department of Pediatrics, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou City, Guangdong, China
| | - Yujia Yang
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha City, Hunan, P.R. China
| | - Yue Yao
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha City, Hunan, P.R. China
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6
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Liu L, Jiang H, Zhao J, Wen H. MiRNA-16 inhibited oral squamous carcinoma tumor growth in vitro and in vivo via suppressing Wnt/β-catenin signaling pathway. Onco Targets Ther 2018; 11:5111-5119. [PMID: 30197522 PMCID: PMC6112799 DOI: 10.2147/ott.s153888] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background Oral carcinoma, one of the most commonly diagnosed cancers, has a poor prognosis and low survival rate with treatment. In recent years, some studies reported the upregulation of miRNA-16 (miR-16) in the oral carcinoma, whereas some other studies confirmed the downregulation of miR-16. In the current study, we aimed to investigate the function of miR-16 in oral carcinoma. Materials and methods Cell proliferation assay was measured by MTT assay, quantitative real time polymerase chain reaction (qRT-PCR) was used to evaluate the expression of miR-16, and apoptosis was analyzed by flow cytometry. In addition, the expression of proteins was detected by Western blot. Moreover, xenograft tumor model was established to detect the effect of miR-16 in vivo. Results The results suggested that miR-16 was downregulated in the oral carcinoma tissues. Overexpression of miR-16 inhibited the growth and proliferation of oral squamous carcinoma cells (OSCCs) and induced apoptosis both in vitro and in vivo, which is due to the suppression of Wnt/β-catenin signaling pathway. Conclusion This study provides evidence that overexpression of miR-16 inhibits OSCC growth by regulating Wnt/β-catenin signaling. Our findings suggest that overexpression of miR-16 could be a potential approach for gene therapy of OSCC in future.
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Affiliation(s)
- Lijun Liu
- Department of Stomatology, Stomatology of Mylike Plastic and Cosmetic Hospital of ChongQing, Chongqing, China.,Department of Oral and Maxillofacial Surgery, School of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, China,
| | - Han Jiang
- Department of Periodontics, School of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, China
| | - Jin Zhao
- Department of Periodontics, School of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, China
| | - Hao Wen
- Department of Oral and Maxillofacial Surgery, School of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, China,
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Marquez J, Fernandez-Piñeiro I, Araúzo-Bravo MJ, Poschmann G, Stühler K, Khatib AM, Sanchez A, Unda F, Ibarretxe G, Bernales I, Badiola I. Targeting liver sinusoidal endothelial cells with miR-20a-loaded nanoparticles reduces murine colon cancer metastasis to the liver. Int J Cancer 2018; 143:709-719. [PMID: 29492958 DOI: 10.1002/ijc.31343] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 02/02/2018] [Accepted: 02/19/2018] [Indexed: 12/15/2022]
Abstract
Phenotypic transformation of liver sinusoidal endothelial cells is one of the most important stages of liver metastasis progression. The miRNA effects on liver sinusoidal endothelial cells during liver metastasis have not yet been studied. Herein, whole genome analysis of miRNA expression in these cells during colorectal liver metastasis revealed repressed expression of microRNA-20a. Importantly, downregulation of miR-20a occurs in parallel with upregulation of its known protein targets. To restore normal miR-20a levels in liver sinusoidal endothelial cells, we developed chondroitin sulfate-sorbitan ester nanoparticles conjugated with miR-20a in a delivery system that specifically targets liver sinusoidal endothelial cells. The restoration of normal mir-20a levels in these cells induced downregulation of the expression of its protein targets, and this also resulted in a reduction of in vitro LSEC migration and a reduction of in vivo activation and tumor-infiltrating capacity and ability of the tumor decreased by ∼80% in a murine liver metastasis model.
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Affiliation(s)
- Joana Marquez
- Department of Cell Biology and Histology, Faculty of Medicine and Nursery, University of Basque Country, UPV/EHU, Leioa, Spain
| | - Ines Fernandez-Piñeiro
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Marcos J Araúzo-Bravo
- Computational Biology and Systems Biomedicine Research Group.Computational Biology Data Analysis Platform. Biodonostia Health Research Institute, San Sebastián, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Gereon Poschmann
- Molecular Proteomics Laboratory (MPL), Biologisch-Medizinisches Forschungszentrum (BMFZ),Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Kai Stühler
- Molecular Proteomics Laboratory (MPL), Biologisch-Medizinisches Forschungszentrum (BMFZ),Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Abdel-Majid Khatib
- Université Bordeaux, Pessac, France.,INSERM, LAMC, UMR 1029, Pessac, France
| | - Alejandro Sanchez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain.,Genetics and Biology of the Development of Kidney Diseases Unit, Sanitary Research Institute (IDIS) of the University Hospital Complex of Santiago de Compostela, Santiago de Compostela, Spain
| | - Fernando Unda
- Department of Cell Biology and Histology, Faculty of Medicine and Nursery, University of Basque Country, UPV/EHU, Leioa, Spain
| | - Gaskon Ibarretxe
- Department of Cell Biology and Histology, Faculty of Medicine and Nursery, University of Basque Country, UPV/EHU, Leioa, Spain
| | - Irantzu Bernales
- Gene Expression Unit, Genomics Facility of General Research Services (SGIker), University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Iker Badiola
- Department of Cell Biology and Histology, Faculty of Medicine and Nursery, University of Basque Country, UPV/EHU, Leioa, Spain
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Yin Y, Zhong J, Li SW, Li JZ, Zhou M, Chen Y, Sang Y, Liu L. TRIM11, a direct target of miR-24-3p, promotes cell proliferation and inhibits apoptosis in colon cancer. Oncotarget 2018; 7:86755-86765. [PMID: 27888625 PMCID: PMC5349951 DOI: 10.18632/oncotarget.13550] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 11/07/2016] [Indexed: 12/16/2022] Open
Abstract
TRIM11 (tripartite motif-containing protein 11) is an E3 ubiquitin ligase recently identified as an oncogene in malignant glioma and lung cancer. In the present study, we report that expression of TRIM11 was increased in colon cancer (CC) tissue relative to paired normal tissues and that higher TRIM11 levels predicted poor overall survival (OS) and disease-free survival (DFS) in CC patients. Mechanistically, we showed that miR-24-3p downregulation contributes to TRIM11 upregulation in CC. We also demonstrated that TRIM11 overexpression promotes cell proliferation and colony formation and inhibits apoptosis in CC, while knocking down TRIM11 using CRISPR/Cas9-mediated genome editing inhibited cell proliferation and induced apoptosis. Silencing TRIM11 in vivo decreased tumor growth. These findings indicate that TRIM11 facilitates CC progression by promoting cell proliferation and inhibiting apoptosis and that the novel miR-24-3p/TRIM11 axis may be a useful new target for treating patients with CC.
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Affiliation(s)
- Yan Yin
- Department of Pharmacy, Jiangxi Cancer Hospital, Nanchang, China
| | - Jun Zhong
- Department of Radiotherapy, Jiangxi Cancer Hospital, Nanchang, China
| | - Si-Wei Li
- Department of Radiation Oncology, The Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Jian-Zhe Li
- Department of Pharmacy, Ruikang Hospital, Guangxi University of Chinese Medicine, Nanning, China
| | - Min Zhou
- Department of Pharmacy, Jiangxi Cancer Hospital, Nanchang, China
| | - Yin Chen
- Department of Pharmacy, Jiangxi Cancer Hospital, Nanchang, China
| | - Yi Sang
- Nanchang Key Laboratory of Cancer Pathogenesis and Translational Research, Center Laboratory, The Third Affiliated Hospital, Nanchang University, Nanchang, China
| | - Lijuan Liu
- Department of Pharmacy, Jiangxi Cancer Hospital, Nanchang, China
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9
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Cui Y, Han J, Xiao Z, Qi Y, Zhao Y, Chen B, Fang Y, Liu S, Wu X, Dai J. Systematic Analysis of mRNA and miRNA Expression of 3D-Cultured Neural Stem Cells (NSCs) in Spaceflight. Front Cell Neurosci 2018; 11:434. [PMID: 29375320 PMCID: PMC5768636 DOI: 10.3389/fncel.2017.00434] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/26/2017] [Indexed: 12/16/2022] Open
Abstract
Recently, with the development of the space program there are growing concerns about the influence of spaceflight on tissue engineering. The purpose of this study was thus to determine the variations of neural stem cells (NSCs) during spaceflight. RNA-Sequencing (RNA-Seq) based transcriptomic profiling of NSCs identified many differentially expressed mRNAs and miRNAs between space and earth groups. Subsequently, those genes with differential expression were subjected to bioinformatic evaluation using gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes pathway (KEGG) and miRNA-mRNA network analyses. The results showed that NSCs maintain greater stemness ability during spaceflight although the growth rate of NSCs was slowed down. Furthermore, the results indicated that NSCs tended to differentiate into neuron in outer space conditions. Detailed genomic analyses of NSCs during spaceflight will help us to elucidate the molecular mechanisms behind their differentiation and proliferation when they are in outer space.
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Affiliation(s)
- Yi Cui
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing, China
| | - Jin Han
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Zhifeng Xiao
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Yiduo Qi
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Yannan Zhao
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Bing Chen
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Yongxiang Fang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Public Health of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Sumei Liu
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Xianming Wu
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Jianwu Dai
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
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Zhao F, Pu Y, Qian L, Zang C, Tao Z, Gao J. MiR-20a-5p promotes radio-resistance by targeting NPAS2 in nasopharyngeal cancer cells. Oncotarget 2017; 8:105873-105881. [PMID: 29285299 PMCID: PMC5739686 DOI: 10.18632/oncotarget.22411] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 09/13/2017] [Indexed: 12/23/2022] Open
Abstract
MicroRNAs (miRNAs) are key players of gene expression involved in diverse biological processes including the cancer radio-resistance, which hinders the effective cancer therapy. Here we found that the miR-20a-5p level is significantly up-regulated in radio-resistant nasopharyngeal cancer (NPC) cells via an RNA-seq and miR-omic analysis. Moreover, we identified that the neuronal PAS domain protein 2 (NPAS2) gene is one of the targets of miR-20a-5p. The involvement of miR-20a-5p and NPAS2 with NPC radio-resistance was further validated by either down- or up-regulation of their levels in NPC cell lines. Taken together, these results not only reveal novel insights into the NPC radio-resistance, but also provide hints for an effective therapeutic strategy to fight against NPC radio-resistance.
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Affiliation(s)
- Fangfang Zhao
- The Institute of Cancer Research, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui, China
| | - Youguang Pu
- The Institute of Cancer Research, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui, China
| | - Liting Qian
- Department of Radiation Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui, China
| | - Chunbao Zang
- Department of Radiation Oncology, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui, China
| | - Zhenchao Tao
- Department of Radiation Oncology, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui, China
| | - Jin Gao
- Department of Radiation Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui, China
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11
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Zhao F, Pu Y, Cui M, Wang H, Cai S. MiR-20a-5p represses the multi-drug resistance of osteosarcoma by targeting the SDC2 gene. Cancer Cell Int 2017; 17:100. [PMID: 29118673 PMCID: PMC5668954 DOI: 10.1186/s12935-017-0470-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 10/24/2017] [Indexed: 12/21/2022] Open
Abstract
Background As one of the hallmarks of cancer, chemoresistance hinders curative cancer chemotherapy in osteosarcoma (OS). MicroRNAs (miRNAs) act as key regulators of gene expression in diverse biological processes including the multi-chemoresistance of cancers. Methods Based on the CCK8 experiments, we performed an RNA-seq-based miR-omic analysis of osteosarcoma (OS) cells (a multi-chemosensitive OS cell line G-292 and a multi-chemoresistant OS cell line SJSA-1) to detect the levels of miR-20a-5p. We predicted Homo sapiens syndecan 2 (SDC2) as one of the target genes of miR-20a-5p via several websites, which was further validated by detecting their expression of both mRNA and protein level in both the miR-20a-5p-mimic transfected G-292 and miR-20a-5p-antagomiR transfected SJSA-1 cells. The involvement of SDC2 with OS chemoresistance was checked by siRNA-mediated repression or overexpression of SDC2 gene. Cell viability was assessed by CCK8 assay. Results We found that the miR-20a-5p level was higher in G-292 cells than in SJSA-1 cells. Forced expression of miR-20a-5p counteracted OS chemoresistance in both cell culture and tumor xenografts in nude mice. As one of miR-20a-5p’s targets, SDC2 was found to mediate the miR-20a-5p-induced repression of OS chemoresistance. Conclusions Our results suggest that miR-20a-5p and SDC2 contribute to OS chemoresistance. The key players in the miR-20a-5p/SDC2 axis may be a potential diagnostic biomarker and therapeutic target for OS patients.
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Affiliation(s)
- Fangfang Zhao
- Cancer Epigenetics Program, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
| | - Youguang Pu
- Cancer Epigenetics Program, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
| | - Mingda Cui
- Xinxiang Medical University, Xinxiang, 453003 Henan China
| | - Haiyan Wang
- Department of Clinical Geriatrics, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
| | - Shanbao Cai
- Cancer Epigenetics Program, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China.,Xinxiang Medical University, Xinxiang, 453003 Henan China.,Department of Orthopedic Surgery and Cancer Epigenetics Program, Anhui Cancer Hospital, West Branch of Affiliated Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
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12
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Luarte A, Cisternas P, Caviedes A, Batiz LF, Lafourcade C, Wyneken U, Henzi R. Astrocytes at the Hub of the Stress Response: Potential Modulation of Neurogenesis by miRNAs in Astrocyte-Derived Exosomes. Stem Cells Int 2017; 2017:1719050. [PMID: 29081809 PMCID: PMC5610870 DOI: 10.1155/2017/1719050] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 08/16/2017] [Indexed: 01/24/2023] Open
Abstract
Repetitive stress negatively affects several brain functions and neuronal networks. Moreover, adult neurogenesis is consistently impaired in chronic stress models and in associated human diseases such as unipolar depression and bipolar disorder, while it is restored by effective antidepressant treatments. The adult neurogenic niche contains neural progenitor cells in addition to amplifying progenitors, neuroblasts, immature and mature neurons, pericytes, astrocytes, and microglial cells. Because of their particular and crucial position, with their end feet enwrapping endothelial cells and their close communication with the cells of the niche, astrocytes might constitute a nodal point to bridge or transduce systemic stress signals from peripheral blood, such as glucocorticoids, to the cells involved in the neurogenic process. It has been proposed that communication between astrocytes and niche cells depends on direct cell-cell contacts and soluble mediators. In addition, new evidence suggests that this communication might be mediated by extracellular vesicles such as exosomes, and in particular, by their miRNA cargo. Here, we address some of the latest findings regarding the impact of stress in the biology of the neurogenic niche, and postulate how astrocytic exosomes (and miRNAs) may play a fundamental role in such phenomenon.
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Affiliation(s)
- Alejandro Luarte
- Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
- Biomedical Neuroscience Institute, Universidad de Chile, Santiago, Chile
| | - Pablo Cisternas
- Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
- Cells for Cells, Santiago, Chile
| | - Ariel Caviedes
- Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
| | - Luis Federico Batiz
- Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
| | - Carlos Lafourcade
- Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
| | - Ursula Wyneken
- Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
| | - Roberto Henzi
- Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
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Chen CF, Yang HC, Liu GS. [Effect of nucleolin silencing on differentiation of rat neural stem cells in vitro and the molecular mechanism]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:875-882. [PMID: 28736361 PMCID: PMC6765513 DOI: 10.3969/j.issn.1673-4254.2017.07.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the effect of nucleolin silencing on the differentiation of rat neural stem cells (NSCs) and the role of Wnt signaling pathway in mediating such effect. METHODS Adenovirus vectors expressing small interfering RNA (siRNA) against nucleolin were constructed, verified, and packaged in HEK293A cells. The adenovirus was then transfected into NSCs isolated from neonatal SD rats and the differentiation of the NSCs was examined by detecting the expressions of neuron specific encloase (NSE) and glial fibrillary acidic protein (GFAP) using immunocytochemistry. The expressions of nucleolin, nestin, Wnt3, and β-catenin in the cells were determined with Western blotting. RESULTS Restriction endonuclease and sequencing analysis verified successful construction of the adenoviral vector expressing nucleolin siRNA (nucleolin-siRNA2). Infection of rat NSCs with nucleolin-siRNA2 significantly lowered nucleolin protein expression as compared with that in negative and blank control groups (P<0.05). The percentages of NSE-positive cells and GFAP-positive cells were significantly higher in NSCs infected with nucleolin-siRNA (P<0.01); the infection also resulted in obviously lowered expression of nestin protein and increased expressions of Wnt3 protein and β-catenin nucleoprotein in the cells. CONCLUSIONS Nucleolin silencing by adenovirus-mediated RNA interference induces the differentiation of NSCs into neurons and astrocytes, which is related with the activation of Wnt signaling pathway.
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Affiliation(s)
- Chong-Feng Chen
- Department of Pediatrics, First Affiliated Hospital of Jinan University, Guangzhou 510632, China.E-mail:
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Tuning of major signaling networks (TGF-β, Wnt, Notch and Hedgehog) by miRNAs in human stem cells commitment to different lineages: Possible clinical application. Biomed Pharmacother 2017; 91:849-860. [PMID: 28501774 DOI: 10.1016/j.biopha.2017.05.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/29/2017] [Accepted: 05/04/2017] [Indexed: 02/07/2023] Open
Abstract
Two distinguishing characteristics of stem cells, their continuous division in the undifferentiated state and growth into any cell types, are orchestrated by a number of cell signaling pathways. These pathways act as a niche factor in controlling variety of stem cells. The core stem cell signaling pathways include Wingless-type (Wnt), Hedgehog (HH), and Notch. Additionally, they critically regulate the self-renewal and survival of cancer stem cells. Conversely, stem cells' main properties, lineage commitment and stemness, are tightly controlled by epigenetic mechanisms such as DNA methylation, histone modifications and non-coding RNA-mediated regulatory events. MicroRNAs (miRNAs) are cellular switches that modulate stem cells outcomes in response to diverse extracellular signals. Numerous scientific evidences implicating miRNAs in major signal transduction pathways highlight new crosstalks of cellular processes. Aberrant signaling pathways and miRNAs levels result in developmental defects and diverse human pathologies. This review discusses the crosstalk between the components of main signaling networks and the miRNA machinery, which plays a role in the context of stem cells development and provides a set of examples to illustrate the extensive relevance of potential novel therapeutic targets.
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15
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Hou XQ, Wang L, Wang FG, Zhao XM, Zhang HT. Combination of RNA Interference and Stem Cells for Treatment of Central Nervous System Diseases. Genes (Basel) 2017; 8:genes8050135. [PMID: 28481269 PMCID: PMC5448009 DOI: 10.3390/genes8050135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/27/2017] [Accepted: 04/28/2017] [Indexed: 12/31/2022] Open
Abstract
RNA interference (RNAi), including microRNAs, is an important player in the mediation of differentiation and migration of stem cells via target genes. It is used as a potential strategy for gene therapy for central nervous system (CNS) diseases. Stem cells are considered vectors of RNAi due to their capacity to deliver RNAi to other cells. In this review, we discuss the recent advances in studies of RNAi pathways in controlling neuronal differentiation and migration of stem cells. We also highlight the utilization of a combination of RNAi and stem cells in treatment of CNS diseases.
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Affiliation(s)
- Xue-Qin Hou
- Institute of Pharmacology, Taishan Medical University, Taian 271016, Shandong, China.
| | - Lei Wang
- Institute of Pharmacology, Taishan Medical University, Taian 271016, Shandong, China.
| | - Fu-Gang Wang
- Institute of Pharmacology, Taishan Medical University, Taian 271016, Shandong, China.
| | - Xiao-Min Zhao
- Institute of Pharmacology, Taishan Medical University, Taian 271016, Shandong, China.
| | - Han-Ting Zhang
- Institute of Pharmacology, Taishan Medical University, Taian 271016, Shandong, China.
- Departments of Behavioral Medicine & Psychiatry and Physiology & Pharmacology, Blanchette Rockefeller Neurosciences Institute, West Virginia University Health Sciences Center, Morgantown, WV 26506, USA.
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miR-18a counteracts AKT and ERK activation to inhibit the proliferation of pancreatic progenitor cells. Sci Rep 2017; 7:45002. [PMID: 28332553 PMCID: PMC5362961 DOI: 10.1038/srep45002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 02/17/2017] [Indexed: 12/19/2022] Open
Abstract
Activation of endogenous stem/progenitor cells to repair injured tissues is an ideal option for disease treatment. However, adult pancreatic progenitor cells remain in a quiescent state in vivo. Thus, it is difficult to stimulate proliferation and differentiation in these progenitor cells, and the cause remains elusive. miR-17-92 cluster miRNAs are highly conserved in mammals and are expressed in multiple tissue stem/progenitor cells, but their role in pancreatic progenitor cells are less well known. In the present study, we demonstrate that miR-18a, but not the other members of the miR-17-92 gene cluster, inhibits the proliferation of pancreatic progenitor cells in vitro and ex vivo. miR-18a inhibits proliferation of adult pancreatic progenitor cells through arresting the cell cycle at G1 stage, indicating that miR-18a plays a role in keeping the adult pancreatic progenitor cells in quiescence. miR-18a inhibits pancreatic progenitor proliferation by targeting the gene expressions of connective tissue growth factor (CTGF), neural precursor cell expressed, developmentally down-regulated 9 (Nedd9), and cyclin dependent kinase 19 (CDK19), as well as by suppressing activation of the proliferation-related signaling pathways phosphatidylinositol 3-kinase–protein kinase B (PI3K/AKT) and extracellular signal-regulated kinase (ERK).
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17
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microRNA-137 promotes apoptosis in ovarian cancer cells via the regulation of XIAP. Br J Cancer 2016; 116:66-76. [PMID: 27875524 PMCID: PMC5220146 DOI: 10.1038/bjc.2016.379] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/28/2016] [Accepted: 10/21/2016] [Indexed: 12/21/2022] Open
Abstract
Background: microRNAs (miRNAs) have regulatory roles in various cellular processes, including apoptosis. Recently, X-linked inhibitor of apoptosis protein (XIAP) has been reported to be dysregulated in epithelial ovarian cancer (EOC). However, the mechanism underlying this dysregulation is largely unknown. Methods: Using bioinformatics and a literature analysis, a panel of miRNAs dysregulated in EOC was chosen for further experimental confirmation from hundreds of miRNAs that were predicted to interact with the XIAP 3′UTR. A dual-luciferase reporter assay was employed to detect the interaction by cellular co-transfection of an miRNA expression vector and a reporter vector with the XIAP 3′UTR fused to a Renilla luciferase reporter. DAPI and TUNEL approaches were used to further determine the effects of an miR-137 mimic and inhibitor on cisplatin-induced apoptosis in ovarian cancer cells. Results: We identified eight miRNAs by screening a panel of dysregulated miRNAs that may target the XIAP 3′UTR. The strongest inhibitory miRNA, miR-137, suppressed the activity of a luciferase reporter gene fused with the XIAP 3′UTR and decreased the levels of XIAP protein in SKOV3 ovarian cancer cells. Furthermore, forced expression of miR-137 increased cisplatin-induced apoptosis, and the depressed expression of miR-137 decreased cisplatin-induced apoptosis in SKOV3 and primary EOC cells. Consistently, the disruption of miR-137 via CRISPR/Cas9 inhibited apoptosis and upregulated XIAP in A2780 cells. Furthermore, the effect of miR-137 on apoptosis could be rescued by XIAP in SKOV3 cells. In addition, miR-137 expression is inversely correlated with the level of XIAP protein in both ovarian cancer tissues and cell lines. Conclusions: Our data suggest that multiple miRNAs can regulate XIAP via its 3′UTR. miR-137 can sensitise ovarian cancer cells to cisplatin-induced apoptosis, providing new insight into overcoming drug resistance in ovarian cancer.
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Noelanders R, Vleminckx K. How Wnt Signaling Builds the Brain: Bridging Development and Disease. Neuroscientist 2016; 23:314-329. [DOI: 10.1177/1073858416667270] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Wnt/β-catenin signaling plays a crucial role throughout all stages of brain development and remains important in the adult brain. Accordingly, many neurological disorders have been linked to Wnt signaling. Defects in Wnt signaling during neural development can give rise to birth defects or lead to neurological dysfunction later in life. Developmental signaling events can also be hijacked in the adult and result in disease. Moreover, knowledge about the physiological role of Wnt signaling in the brain might lead to new therapeutic strategies for neurological diseases. Especially, the important role for Wnt signaling in neural differentiation of pluripotent stem cells has received much attention as this might provide a cure for neurodegenerative disorders. In this review, we summarize the versatile role of Wnt/β-catenin signaling during neural development and discuss some recent studies linking Wnt signaling to neurological disorders.
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Affiliation(s)
- Rivka Noelanders
- Unit of Developmental Biology, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kris Vleminckx
- Unit of Developmental Biology, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
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Pirrò S, Minutolo A, Galgani A, Potestà M, Colizzi V, Montesano C. Bioinformatics Prediction and Experimental Validation of MicroRNAs Involved in Cross-Kingdom Interaction. J Comput Biol 2016; 23:976-989. [PMID: 27428722 DOI: 10.1089/cmb.2016.0059] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
MicroRNAs (miRNAs) are a class of small noncoding RNAs that act as efficient post-transcriptional regulators of gene expression. In 2012, the first cross-kingdom miRNA-based interaction had been evidenced, demonstrating that exogenous miRNAs act in a manner of mammalian functional miRNAs. Starting from this evidence, we defined the concept of cross-kingdom functional homology between plant and mammalian miRNAs as a needful requirement for vegetal miRNA to explicit a regulation mechanism into the host mammalian cell, comparable to the endogenous one. Then, we proposed a new dedicated algorithm to compare plant and mammalian miRNAs, searching for functional sequence homologies between them, and we developed a web software called MirCompare. We also predicted human genes regulated by the selected plant miRNAs, and we determined the role of exogenous miRNAs in the perturbation of intracellular interaction networks. Finally, as already performed by Pirrò and coworkers, the ability of MirCompare to select plant miRNAs with functional homologies with mammalian ones has been experimentally confirmed by evaluating the ability of mol-miR168a to downregulate the protein expression of SIRT1, when its mimic is transfected into human hepatoma cell line G2 (HEPG2) cells. This tool is implemented into a user-friendly web interface, and the access is free to public through the website http://160.80.35.140/MirCompare.
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Affiliation(s)
- Stefano Pirrò
- 1 Department of Biology, University of Rome "Tor Vergata ," Rome, Italy .,2 Mir-Nat s.r.l. , Rome, Italy
| | | | - Andrea Galgani
- 1 Department of Biology, University of Rome "Tor Vergata ," Rome, Italy .,2 Mir-Nat s.r.l. , Rome, Italy
| | - Marina Potestà
- 1 Department of Biology, University of Rome "Tor Vergata ," Rome, Italy
| | - Vittorio Colizzi
- 1 Department of Biology, University of Rome "Tor Vergata ," Rome, Italy .,2 Mir-Nat s.r.l. , Rome, Italy
| | - Carla Montesano
- 1 Department of Biology, University of Rome "Tor Vergata ," Rome, Italy
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Agarwal S, Yadav A, Tiwari SK, Seth B, Chauhan LKS, Khare P, Ray RS, Chaturvedi RK. Dynamin-related Protein 1 Inhibition Mitigates Bisphenol A-mediated Alterations in Mitochondrial Dynamics and Neural Stem Cell Proliferation and Differentiation. J Biol Chem 2016; 291:15923-39. [PMID: 27252377 DOI: 10.1074/jbc.m115.709493] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Indexed: 11/06/2022] Open
Abstract
The regulatory dynamics of mitochondria comprises well orchestrated distribution and mitochondrial turnover to maintain the mitochondrial circuitry and homeostasis inside the cells. Several pieces of evidence suggested impaired mitochondrial dynamics and its association with the pathogenesis of neurodegenerative disorders. We found that chronic exposure of synthetic xenoestrogen bisphenol A (BPA), a component of consumer plastic products, impaired autophagy-mediated mitochondrial turnover, leading to increased oxidative stress, mitochondrial fragmentation, and apoptosis in hippocampal neural stem cells (NSCs). It also inhibited hippocampal derived NSC proliferation and differentiation, as evident by the decreased number of BrdU- and β-III tubulin-positive cells. All these effects were reversed by the inhibition of oxidative stress using N-acetyl cysteine. BPA up-regulated the levels of Drp-1 (dynamin-related protein 1) and enhanced its mitochondrial translocation, with no effect on Fis-1, Mfn-1, Mfn-2, and Opa-1 in vitro and in the hippocampus. Moreover, transmission electron microscopy studies suggested increased mitochondrial fission and accumulation of fragmented mitochondria and decreased elongated mitochondria in the hippocampus of the rat brain. Impaired mitochondrial dynamics by BPA resulted in increased reactive oxygen species and malondialdehyde levels, disruption of mitochondrial membrane potential, and ATP decline. Pharmacological (Mdivi-1) and genetic (Drp-1siRNA) inhibition of Drp-1 reversed BPA-induced mitochondrial dysfunctions, fragmentation, and apoptosis. Interestingly, BPA-mediated inhibitory effects on NSC proliferation and neuronal differentiations were also mitigated by Drp-1 inhibition. On the other hand, Drp-1 inhibition blocked BPA-mediated Drp-1 translocation, leading to decreased apoptosis of NSC. Overall, our studies implicate Drp-1 as a potential therapeutic target against BPA-mediated impaired mitochondrial dynamics and neurodegeneration in the hippocampus.
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Affiliation(s)
- Swati Agarwal
- From the Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group and the Academy of Scientific and Innovative Research and
| | - Anuradha Yadav
- From the Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group and the Academy of Scientific and Innovative Research and
| | - Shashi Kant Tiwari
- From the Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group and the Academy of Scientific and Innovative Research and
| | - Brashket Seth
- From the Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group and the Academy of Scientific and Innovative Research and
| | - Lalit Kumar Singh Chauhan
- the Central Instrumentation Facility, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Puneet Khare
- From the Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group and
| | - Ratan Singh Ray
- the Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group
| | - Rajnish Kumar Chaturvedi
- From the Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group and the Academy of Scientific and Innovative Research and
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Peng S, Gao D, Gao C, Wei P, Niu M, Shuai C. MicroRNAs regulate signaling pathways in osteogenic differentiation of mesenchymal stem cells (Review). Mol Med Rep 2016; 14:623-9. [PMID: 27222009 PMCID: PMC4918597 DOI: 10.3892/mmr.2016.5335] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 04/18/2016] [Indexed: 12/15/2022] Open
Abstract
Osteogenesis is a complex multi-step process involving the differentiation of mesenchymal stem cells (MSCs) into osteoblast progenitor cells, preosteoblasts, osteoblasts and osteocytes, and the crosstalk between multiple cell types for the formation and remodeling of bone. The signaling regulatory networks during osteogenesis include various components, including growth factors, transcription factors, micro (mi)RNAs and effectors, a number of which form feedback loops controlling the balance of osteogenic differentiation by positive or negative regulation. miRNAs have been found to be important regulators of osteogenic signaling pathways in multiple aspects and multiple signaling pathways. The present review focusses on the progress in elucidating the role of miRNA in the osteogenesis signaling networks of MSCs as a substitute for bone implantation the the field of bone tissue engineering. In particular, the review classifies which miRNAs promote or suppress the osteogenic process, and summarizes which signaling pathway these miRNAs are involved in. Improvements in knowledge of the characteristics of miRNAs in osteogenesis provide an important step for their application in translational investigations of bone tissue engineering and bone disease.
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Affiliation(s)
- Shuping Peng
- Hunan Provincial Tumor Hospital and The Affiliated Tumor Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Dan Gao
- Hunan Provincial Tumor Hospital and The Affiliated Tumor Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Chengde Gao
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha, Hunan 410083, P.R. China
| | - Pingpin Wei
- Hunan Provincial Tumor Hospital and The Affiliated Tumor Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Man Niu
- Hunan Provincial Tumor Hospital and The Affiliated Tumor Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha, Hunan 410083, P.R. China
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