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Wang X, Fan W, Xu Z, Zhang Q, Li N, Li R, Wang G, He S, Li W, Liao D, Zhang Z, Shu N, Huang J, Zhao C, Hou S. SOX2-positive retinal stem cells are identified in adult human pars plicata by single-cell transcriptomic analyses. MedComm (Beijing) 2022; 4:e198. [PMID: 36582303 PMCID: PMC9790047 DOI: 10.1002/mco2.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 12/26/2022] Open
Abstract
Stem cell therapy is a promising strategy to rescue visual impairment caused by retinal degeneration. Previous studies have proposed controversial theories about whether in situ retinal stem cells (RSCs) are present in adult human eye tissue. Single-cell RNA sequencing (scRNA-seq) has emerged as one of the most powerful tools to reveal the heterogeneity of tissue cells. By using scRNA-seq, we explored the cell heterogeneity of different subregions of adult human eyes, including pars plicata, pars plana, retinal pigment epithelium (RPE), iris, and neural retina (NR). We identified one subpopulation expressing SRY-box transcription factor 2 (SOX2) as RSCs, which were present in the pars plicata of the adult human eye. Further analysis showed the identified subpopulation of RSCs expressed specific markers aquaporin 1 (AQP1) and tetraspanin 12 (TSPAN12). We, therefore, isolated this subpopulation using these two markers by flow sorting and found that the isolated RSCs could proliferate and differentiate into some retinal cell types, including photoreceptors, neurons, RPE cells, microglia, astrocytes, horizontal cells, bipolar cells, and ganglion cells; whereas, AQP1- TSPAN12- cells did not have this differentiation potential. In conclusion, our results showed that SOX2-positive RSCs are present in the pars plicata and may be valuable for treating human retinal diseases due to their proliferation and differentiation potential.
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Affiliation(s)
- Xiaotang Wang
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Wei Fan
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Zongren Xu
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Qi Zhang
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Na Li
- Department of Biochemistry and Molecular BiologyCollege of Basic MedicineChongqing Medical UniversityChongqingChina
| | - Ruonan Li
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Guoqing Wang
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Siyuan He
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Wanqian Li
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Dan Liao
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Zhi Zhang
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Nan Shu
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Jiaxing Huang
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Chenyang Zhao
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
| | - Shengping Hou
- The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina,Chongqing Key Laboratory of OphthalmologyChongqingChina,Chongqing Eye InstituteChongqingChina,Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular DiseasesChongqingChina
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2
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Zhang Z, Chen W, Tiemessen DM, Oosterwijk E, Kouwer PHJ. A Temperature-Based Easy-Separable (TempEasy) 3D Hydrogel Coculture System. Adv Healthc Mater 2022; 11:e2102389. [PMID: 35029325 DOI: 10.1002/adhm.202102389] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/10/2021] [Indexed: 12/13/2022]
Abstract
Interactions between different cell types are crucial for their behavior in tissues, but are rarely considered in 3D in vitro cell culture experiments. One reason is that such coculture experiments are sometimes difficult to perform in 3D or require specialized equipment or know-how. Here, a new 3D cell coculture system is introduced, TempEasy, which is readily applied in any cell culture lab. The matrix material is based on polyisocyanide hydrogels, which closely resemble the mechanical characteristics of the natural extracellular matrix. Gels with different gelation temperatures, seeded with different cells, are placed on top of each other to form an indirect coculture. Cooling reverses gelation, allowing cell harvesting from each layer separately, which benefits downstream analysis. To demonstrate the potential of TempEasy , human adipose stem cells (hADSCs) with vaginal epithelial fibroblasts are cocultured. The analysis of a 7-day coculture shows that hADSCs promote cell-cell interaction of fibroblasts, while fibroblasts promote proliferation and differentiation of hADSCs. TempEasy provides a straightforward operational platform for indirect cocultures of cells of different lineages in well-defined microenvironments.
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Affiliation(s)
- Zhaobao Zhang
- Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135 Nijmegen 6525 AJ The Netherlands
| | - Wen Chen
- Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135 Nijmegen 6525 AJ The Netherlands
| | - Dorien M. Tiemessen
- Department of Urology Radboud Institute for Molecular Life Sciences Radboud University Medical Center Geert Grooteplein Zuid 28 Nijmegen 6525 GA The Netherlands
| | - Egbert Oosterwijk
- Department of Urology Radboud Institute for Molecular Life Sciences Radboud University Medical Center Geert Grooteplein Zuid 28 Nijmegen 6525 GA The Netherlands
| | - Paul H. J. Kouwer
- Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135 Nijmegen 6525 AJ The Netherlands
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3
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Augmenting Peripheral Nerve Regeneration with Adipose-Derived Stem Cells. Stem Cell Rev Rep 2022; 18:544-558. [PMID: 34417730 PMCID: PMC8858329 DOI: 10.1007/s12015-021-10236-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2021] [Indexed: 02/03/2023]
Abstract
Peripheral nerve injuries (PNIs) are common and debilitating, cause significant health care costs for society, and rely predominately on autografts, which necessitate grafting a nerve section non-locally to repair the nerve injury. One possible approach to improving treatment is bolstering endogenous regenerative mechanisms or bioengineering new nervous tissue in the peripheral nervous system. In this review, we discuss critical-sized nerve gaps and nerve regeneration in rats, and summarize the roles of adipose-derived stem cells (ADSCs) in the treatment of PNIs. Several regenerative treatment modalities for PNI are described: ADSCs differentiating into Schwann cells (SCs), ADSCs secreting growth factors to promote peripheral nerve growth, ADSCs promoting myelination growth, and ADSCs treatments with scaffolds. ADSCs' roles in regenerative treatment and features are compared to mesenchymal stem cells, and the administration routes, cell dosages, and cell fates are discussed. ADSCs secrete neurotrophic factors and exosomes and can differentiate into Schwann cell-like cells (SCLCs) that share features with naturally occurring SCs, including the ability to promote nerve regeneration in the PNS. Future clinical applications are also discussed.
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4
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Zhou N, Xu Z, Li X, Ren S, Chen J, Xiong H, Wang C, Guo J, Kang Y, Chen Z, Li W, Yang X, Zhang X, Xu X. Schwann Cell-Derived Exosomes Induce the Differentiation of Human Adipose-Derived Stem Cells Into Schwann Cells. Front Mol Biosci 2022; 8:835135. [PMID: 35174212 PMCID: PMC8841477 DOI: 10.3389/fmolb.2021.835135] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 12/24/2021] [Indexed: 12/14/2022] Open
Abstract
Adipose-derived stem cells (ADSCs) can differentiate into Schwann cells (SCs) at the site of nerve injury, where Schwann cell-derived exosomes (SC-Exos) are suspected to exert an induction effect. Our study aimed to induce the differentiation of ADSCs in vitro using SC-Exos and to investigate the mechanisms involved through miRNA sequencing. Subcutaneous fat was used to extract ADSCs. Exosomes were extracted from Schwann cell lines (RSC96) using ultracentrifugation and were able to be taken up by human ADSCs. After 8 days of induction of ADSCs by SC-Exos, phenotypic characteristics were observed by examining the expression of SC markers (S100ß, NGFR, MPZ, GFAP) through RT-qPCR, Western blot and immunofluorescence. The RNA and protein expression levels of S100ß, NGFR, MPZ, and GFAP were found to be significantly higher in the SC-Exo induction group than in the uninduced group, which was also consistent with the immunofluorescence results. Additionally, miRNA sequencing was performed on exosome-induced ADSCs, followed by bioinformatic analysis and validation of the results. According to the sequencing results, there were a total of 94 differentially expressed miRNAs. Bioinformatics analysis indicated that 3506 Gene Ontology terms and 98 Kyoto Encyclopedia of Genes and Genomes pathways were significantly enriched. Ten miRNAs, 5 target mRNAs and elevated expression of the PIK3CD/Akt pathway were validated by RT-qPCR or Western blot, which is consistent with the sequencing results. Our study demonstrates that the utility of SC-Exos is effective in inducing the differentiation of ADSCs into SCs, in which these validated differentially expressed miRNAs exert a vital effect. This work provides a new paradigm via rationally applying Schwann cell-derived exosomes as a promising therapeutic option for repairing peripheral nerve injury.
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Affiliation(s)
- Nan Zhou
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Orthopedics, Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Zhao Xu
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Li
- Department of Clinical Laboratory, Huai’an Second People’s Hospital, The Affiliated Huai’an Hospital of Xuzhou Medical University, Huai’an, China
| | - Sen Ren
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hewei Xiong
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cheng Wang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiahe Guo
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Kang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenbing Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenqing Li
- Department of Hand and Foot Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Xiaofan Yang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Xiaofan Yang, ; Xing Zhang, ; Xiang Xu,
| | - Xing Zhang
- Department of Orthopedics, Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany
- *Correspondence: Xiaofan Yang, ; Xing Zhang, ; Xiang Xu,
| | - Xiang Xu
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Xiaofan Yang, ; Xing Zhang, ; Xiang Xu,
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5
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Li Y, Fraser D, Mereness J, Van Hove A, Basu S, Newman M, Benoit DSW. Tissue Engineered Neurovascularization Strategies for Craniofacial Tissue Regeneration. ACS APPLIED BIO MATERIALS 2022; 5:20-39. [PMID: 35014834 PMCID: PMC9016342 DOI: 10.1021/acsabm.1c00979] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Craniofacial tissue injuries, diseases, and defects, including those within bone, dental, and periodontal tissues and salivary glands, impact an estimated 1 billion patients globally. Craniofacial tissue dysfunction significantly reduces quality of life, and successful repair of damaged tissues remains a significant challenge. Blood vessels and nerves are colocalized within craniofacial tissues and act synergistically during tissue regeneration. Therefore, the success of craniofacial regenerative approaches is predicated on successful recruitment, regeneration, or integration of both vascularization and innervation. Tissue engineering strategies have been widely used to encourage vascularization and, more recently, to improve innervation through host tissue recruitment or prevascularization/innervation of engineered tissues. However, current scaffold designs and cell or growth factor delivery approaches often fail to synergistically coordinate both vascularization and innervation to orchestrate successful tissue regeneration. Additionally, tissue engineering approaches are typically investigated separately for vascularization and innervation. Since both tissues act in concert to improve craniofacial tissue regeneration outcomes, a revised approach for development of engineered materials is required. This review aims to provide an overview of neurovascularization in craniofacial tissues and strategies to target either process thus far. Finally, key design principles are described for engineering approaches that will support both vascularization and innervation for successful craniofacial tissue regeneration.
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Affiliation(s)
- Yiming Li
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - David Fraser
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Jared Mereness
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Amy Van Hove
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Sayantani Basu
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Maureen Newman
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States.,Materials Science Program, University of Rochester, Rochester, New York 14627, United States.,Department of Chemical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Biomedical Genetics and Center for Oral Biology, University of Rochester Medical Center, Rochester, New York 14642, United States
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6
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Soto PA, Vence M, Piñero GM, Coral DF, Usach V, Muraca D, Cueto A, Roig A, van Raap MBF, Setton-Avruj CP. Sciatic nerve regeneration after traumatic injury using magnetic targeted adipose-derived mesenchymal stem cells. Acta Biomater 2021; 130:234-247. [PMID: 34082099 DOI: 10.1016/j.actbio.2021.05.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 12/15/2022]
Abstract
Traumatic peripheral nerve injuries constitute a huge concern to public health. Nerve damage leads to a decrease or even loss of mobility of the innervated area. Adult stem cell therapies have shown some encouraging results and have been identified as promising treatment candidates for nerve regeneration. A major obstacle to that approach is securing a sufficient number of cells at the injured site to produce measurable therapeutic effects. The present work tackles this issue and demonstrates enhanced nerve regeneration ability promoted by magnetic targeted cell therapy in an in vivo Wallerian degeneration model. To this end, adipose-derived mesenchymal stem cells (AdMSC) were loaded with citric acid coated superparamagnetic iron oxide nanoparticles (SPIONs), systemically transplanted and magnetically recruited to the injured sciatic nerve. AdMSC arrival to the injured nerve was significantly increased using magnetic targeting and their beneficial effects surpassed the regenerative properties of the stand-alone cell therapy. AdMSC-SPIONs group showed a partially conserved nerve structure with many intact myelinated axons. Also, a very remarkable restoration in myelin basic protein organization, indicative of remyelination, was observed. This resulted in an improvement in nerve conduction, demonstrating functional recovery. In summary, our results demonstrate that magnetically assisted delivery of AdMSC, using a non-invasive and non-traumatic method, is a highly promising strategy to promote cell recruitment and sciatic nerve regeneration after traumatic injury. Last but not least, our results validate magnetic targeting in vivo exceeding previous reports in less complex models through cell magnetic targeting in vitro and ex vivo. STATEMENT OF SIGNIFICANCE: Traumatic peripheral nerve injuries constitute a huge public health concern. They can lead to a decrease or even loss of mobility of innervated areas. Due to their complex pathophysiology, current pharmacological and surgical approaches are only partially effective. Cell-based therapies have emerged as a useful tool to achieve full tissue regeneration. However, a major bottleneck is securing enough cells at injured sites. Therefore, our proposal combining biological (adipose derived mesenchymal stem cells) and nanotechnological strategies (magnetic targeting) is of great relevance, reporting the first in vivo experiments involving "magnetic stem cell" targeting for peripheral nerve regeneration. Using a non-invasive and non-traumatic method, cell recruitment in the injured nerve was improved, fostering nerve remyelination and functional recovery.
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Affiliation(s)
- Paula A Soto
- Departamento de Química Biológica, Cátedra de Química Biológica Patológica. Junín 956, Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina; Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, CONICET, Universidad de Buenos Aires. Buenos Aires, Argentina
| | - Marianela Vence
- Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, CONICET, Universidad de Buenos Aires. Buenos Aires, Argentina
| | - Gonzalo M Piñero
- Departamento de Química Biológica, Cátedra de Química Biológica Patológica. Junín 956, Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina; Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, CONICET, Universidad de Buenos Aires. Buenos Aires, Argentina
| | - Diego F Coral
- Instituto de Física La Plata (IFLP - CONICET), Departamento de Física, Facultad de Ciencias, Exactas, Universidad Nacional de La Plata (UNLP), c.c. 67, 1900, La Plata, Argentina
| | - Vanina Usach
- Departamento de Química Biológica, Cátedra de Química Biológica Patológica. Junín 956, Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina; Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, CONICET, Universidad de Buenos Aires. Buenos Aires, Argentina
| | - Diego Muraca
- Instituto de Física 'Gleb Wataghin', Universidade Estadual de Campinas, R. Sérgio Buarque de Holanda, 777 - 13083-859, Campinas, Brazil
| | - Alicia Cueto
- Hospital Español, Servicio de Neurología. Av. Belgrano 2975 C1209, Buenos Aires, Argentina
| | - Anna Roig
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, 08193 Bellaterra, Catalonia, Spain
| | - Marcela B Fernández van Raap
- Instituto de Física La Plata (IFLP - CONICET), Departamento de Física, Facultad de Ciencias, Exactas, Universidad Nacional de La Plata (UNLP), c.c. 67, 1900, La Plata, Argentina
| | - Clara P Setton-Avruj
- Departamento de Química Biológica, Cátedra de Química Biológica Patológica. Junín 956, Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina; Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, CONICET, Universidad de Buenos Aires. Buenos Aires, Argentina.
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7
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Bioactive Nanofiber-Based Conduits in a Peripheral Nerve Gap Management-An Animal Model Study. Int J Mol Sci 2021; 22:ijms22115588. [PMID: 34070436 PMCID: PMC8197537 DOI: 10.3390/ijms22115588] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/22/2021] [Accepted: 05/23/2021] [Indexed: 11/16/2022] Open
Abstract
The aim was to examine the efficiency of a scaffold made of poly (L-lactic acid)-co-poly(ϵ-caprolactone), collagen (COL), polyaniline (PANI), and enriched with adipose-derived stem cells (ASCs) as a nerve conduit in a rat model. P(LLA-CL)-COL-PANI scaffold was optimized and electrospun into a tubular-shaped structure. Adipose tissue from 10 Lewis rats was harvested for ASCs culture. A total of 28 inbred male Lewis rats underwent sciatic nerve transection and excision of a 10 mm nerve trunk fragment. In Group A, the nerve gap remained untouched; in Group B, an excised trunk was used as an autograft; in Group C, nerve stumps were secured with P(LLA-CL)-COL-PANI conduit; in Group D, P(LLA-CL)-COL-PANI conduit was enriched with ASCs. After 6 months of observation, rats were sacrificed. Gastrocnemius muscles and sciatic nerves were harvested for weight, histology analysis, and nerve fiber count analyses. Group A showed advanced atrophy of the muscle, and each intervention (B, C, D) prevented muscle mass decrease (p < 0.0001); however, ASCs addition decreased efficiency vs. autograft (p < 0.05). Nerve fiber count revealed a superior effect in the nerve fiber density observed in the groups with the use of conduit (D vs. B p < 0.0001, C vs. B p < 0.001). P(LLA-CL)-COL-PANI conduits with ASCs showed promising results in managing nerve gap by decreasing muscle atrophy.
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8
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Krzesniak NE, Sarnowska A, Figiel-Dabrowska A, Osiak K, Domanska-Janik K, Noszczyk BH. Secondary release of the peripheral nerve with autologous fat derivates benefits for functional and sensory recovery. Neural Regen Res 2021; 16:856-864. [PMID: 33229720 PMCID: PMC8178762 DOI: 10.4103/1673-5374.297081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The reconstruction of nerve continuity after traumatic nerve injury is the gold standard in hand surgery. Immediate, tension-free, end-to-end nerve suture ensures the best prognosis. The recovery is mostly promising; however, in a few cases, insufficient outcomes in motor or sensory function are observed. Intra- and extra-fascicular scarring accompanies the nerve regeneration process and limits final outcomes. Secondary nerve release in those cases is recommended. Unfortunately, scarring recurrence cannot be eliminated after secondary revision and neurolysis. The supportive influences of mesenchymal stem cells in the process of nerve regeneration were observed in many preclinical studies. However, a limited number of studies in humans have analyzed the clinical usage of mesenchymal stem cells in peripheral nerve reconstruction and revisions. The objective of this study was to evaluate the effects of undifferentiated adipose-derived stromal/stem cell injection during a last-chance surgery (neurolysis, nerve release) on a previously reconstructed nerve. Three patients (one female, two males; mean age 59 ± 4.5 years at the time of injury), who experienced failure of reconstructions of median and ulnar nerves, were included in this study. During the revision surgery, nerve fascicles were released, and adipose-derived stromal/stem cells were administered through microinjections along the fascicles and around the adjacent tissues after external neurolysis. During 36 months of follow-up, patients noticed gradual signs of sensory and in consequence functional recovery. No adverse effects were observed. Simultaneous nerve release with adipose-derived stromal/stem cells support is a promising method in patients who need secondary nerve release after nerve reconstruction. This method can constitute an alternative procedure in patients experiencing recovery failure and allow improvement in cases of limited nerve regeneration. The study protocol was approved by the Institutional Review Board (IRB) at the Centre of Postgraduate Medical Education (No. 62/PB/2016) on September 14, 2016.
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Affiliation(s)
- Natalia E Krzesniak
- Department of Plastic and Reconstructive Surgery, Center of Postgraduate Medical Education, Prof. W. Orlowski Memorial Hospital, Warsaw, Poland
| | - Anna Sarnowska
- Mossakowski Medical Research Center, Polish Academy of Sciences, Warsaw, Poland
| | | | - Katarzyna Osiak
- Department of Plastic and Reconstructive Surgery, Center of Postgraduate Medical Education, Prof. W. Orlowski Memorial Hospital, Warsaw, Poland
| | | | - Bartłomiej H Noszczyk
- Department of Plastic and Reconstructive Surgery, Center of Postgraduate Medical Education, Prof. W. Orlowski Memorial Hospital, Warsaw, Poland
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9
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Dehdashtian A, Bratley JV, Svientek SR, Kung TA, Awan TM, Cederna PS, Kemp SW. Autologous fat grafting for nerve regeneration and neuropathic pain: current state from bench-to-bedside. Regen Med 2020; 15:2209-2228. [PMID: 33264053 DOI: 10.2217/rme-2020-0103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Despite recent advances in microsurgical techniques, functional recovery following peripheral nerve injury remains slow and inadequate. Poor peripheral nerve regeneration not only leaves patients with significant impairments, but also commonly leads to the development of debilitating neuropathic pain. Recent research has demonstrated the potential therapeutic benefits of adipose-derived stem cells, to enhance nerve regeneration. However, clinical translation remains limited due to the current regulatory burdens of the US FDA. A reliable and immediately translatable alternative is autologous fat grafting, where native adipose-derived stem cells present in the transferred tissue can potentially act upon regenerating axons. This review presents the scope of adipose tissue-based therapies to enhance outcomes following peripheral nerve injury, specifically focusing on their role in regeneration and ameliorating neuropathic pain.
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Affiliation(s)
- Amir Dehdashtian
- Department of Surgery, Section of Plastic & Reconstructive Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jarred V Bratley
- Department of Surgery, Section of Plastic & Reconstructive Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Shelby R Svientek
- Department of Surgery, Section of Plastic & Reconstructive Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Theodore A Kung
- Department of Surgery, Section of Plastic & Reconstructive Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Tariq M Awan
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Paul S Cederna
- Department of Surgery, Section of Plastic & Reconstructive Surgery, University of Michigan, Ann Arbor, MI 48109, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Stephen Wp Kemp
- Department of Surgery, Section of Plastic & Reconstructive Surgery, University of Michigan, Ann Arbor, MI 48109, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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10
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Nakada M, Itoh S, Tada K, Matsuta M, Murai A, Tsuchiya H. Effects of hybridization of decellularized allogenic nerves with adipose-derive stem cell sheets to facilitate nerve regeneration. Brain Res 2020; 1746:147025. [PMID: 32712125 DOI: 10.1016/j.brainres.2020.147025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/03/2020] [Accepted: 07/18/2020] [Indexed: 11/19/2022]
Abstract
We developed a sheet of stem cells derived from adipose tissue (ADSC sheet). To improve transplantation, we wrapped decellularized nerves with ADSC sheets and examined the efficacy of this recellularized nerves in nerve regeneration. Decellularized nerves were prepared from sciatic nerves of Sprague-Dawley rats. Wistar rats were subjected to sciatic nerve injury and then randomly assigned to three groups (n = 7 per group), which were transplanted with 15-mm bridge grafts; the first group received a decellularized allogenic nerve implant, the second an ADSC sheet-wrapped decellularized allogenic nerve implant, and the third an autogenous nerves were implant. No significant differences were found in S100-positive and neurofilament-positive areas, axon density, and sciatic functional index (SFI) score between rats transplanted with ADSC sheet-wrapped nerve grafts and those that received autografts. In contrast, these parameters except SFI and the amplitude ratio were significantly larger in rats grafted with ADSC sheet-wrapped nerve than with the decellularized nerve. These results suggest that the number of regenerating axons, as well as their regenerating velocity, and the number of migrating Schwann cells into the implant in rats transplanted with ADSC sheet-wrapped nerves matched those in rats transplanted with autografts. These positive effects are possibly attributable to secretion of growth factors of ADSCs.
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Affiliation(s)
- Mika Nakada
- Department of Orthopaedic Surgery, Graduate School of Medical Science Kanazawa University, 13-1, Kanazawa, Ishikawa #920-8641, Japan
| | - Soichiro Itoh
- Strategic Innovation Research Hub, Laboratory of Strength of Material and Science, Teikyo University, 2-11-1, Kaga, Itabashi-ku, Tokyo #173-8605, Japan
| | - Kaoru Tada
- Department of Orthopaedic Surgery, Graduate School of Medical Science Kanazawa University, 13-1, Kanazawa, Ishikawa #920-8641, Japan.
| | - Masashi Matsuta
- Department of Orthopaedic Surgery, Graduate School of Medical Science Kanazawa University, 13-1, Kanazawa, Ishikawa #920-8641, Japan
| | - Atsuro Murai
- Department of Orthopaedic Surgery, Graduate School of Medical Science Kanazawa University, 13-1, Kanazawa, Ishikawa #920-8641, Japan
| | - Hiroyuki Tsuchiya
- Department of Orthopaedic Surgery, Graduate School of Medical Science Kanazawa University, 13-1, Kanazawa, Ishikawa #920-8641, Japan
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11
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Wang H, Jia Y, Li J, Liu Q. Schwann cell‑derived exosomes induce bone marrow‑derived mesenchymal stem cells to express Schwann cell markers in vitro. Mol Med Rep 2020; 21:1640-1646. [PMID: 32016464 DOI: 10.3892/mmr.2020.10960] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 11/27/2019] [Indexed: 11/05/2022] Open
Abstract
Following peripheral nerve injury, factors in the local microenvironment can induce the differentiation of bone marrow‑derived mesenchymal stem cells (BMSCs) into Schwann cells; however, the specific factors that participate in this process remain unclear. The present study aimed to investigate the role of Schwann cell‑derived exosomes in the differentiation of BMSCs into Schwann cells. Exosomes were extracted from Schwann cells or fibroblasts and co‑cultured with BMSCs. The morphology, as well as gene and protein expressions of the BMSCs were measured to determine the effect of exosomes on cell differentiation. The levels of Schwann cell‑specific markers in BMSCs were significantly increased by Schwann cell‑derived exosomes compared with untreated BMSCs; however, fibroblast‑derived exosomes did not demonstrate the same effects. In conclusion, Schwann cell‑derived exosomes may be involved in the differentiation of BMSCs into Schwann cells, which may provide a novel target for promoting nerve regeneration following injury.
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Affiliation(s)
- Hui Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing 101199, P.R. China
| | - Yanjun Jia
- Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100043, P.R. China
| | - Jiamou Li
- Department of Orthopedics, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, P.R. China
| | - Qingsong Liu
- Department of Otolaryngology Head and Neck Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing 101199, P.R. China
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12
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The Cellular and Molecular Patterns Involved in the Neural Differentiation of Adipose-Derived Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1298:23-41. [PMID: 32514816 DOI: 10.1007/5584_2020_547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Injuries to the nervous system cause serious problems among affected patients by preventing them from the possibility of living a normal life. As this tissue possesses a reduced capacity of self-regeneration currently, lots of different strategies are being developed in order to make the regeneration in the nervous system possible. Among them, tissue engineering and stem cell-based therapies are to date very exploded fields and tremendous progress has been made in this direction. As the two main components of the nervous system, react differently to injuries and behave different during disease, it is clear that two separate regeneration approaches have been taken into consideration during development of treatment. Special attention is constantly given to the potential of adipose-derived stem cells for this kind of application. Due to the fact that they present remarkable properties, they can easily be obtained and have demonstrated that are capable of engaging in neural and glial lineages, adipose-derived stem cells are promising tools for the field of nervous system regeneration. Moreover, new insights into epigenetic control and modifications during the differentiation of adipose-derived stem cells towards the neural liege could provide new methods to maximize the regeneration process. In this review, we summarize the current applications of adipose-derived stem cells for neural regeneration and discuss in-depth molecular patterns involved in the differentiation of adipose-derived stem cells in neuron-like cells and Schwann-like cells.
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13
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Dai TQ, Zhang LL, An Y, Xu FF, An R, Xu HY, Liu YP, Liu B. In vitro transdifferentiation of adipose tissue-derived stem cells into salivary gland acinar-like cells. Am J Transl Res 2019; 11:2908-2924. [PMID: 31217863 PMCID: PMC6556663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
Current clinical approaches to treat irradiation-induced salivary gland hypofunction are ineffective. We previously reported that adipose-derived stem cell (ADSC)-based therapy ameliorates damaged salivary gland function in mice and that the effects were enhanced when the therapy was co-administrated with platelet-rich fibrin (PRF). We examined the feasibility of ADSC transdifferentiation into salivary gland acinar-like cells (SGALCs) and analyzed the potential of PRF to promote the transdifferentiation process in vitro. Salivary gland cells (SGCs) and ADSCs were indirectly co-cultured using Transwell inserts, and increasing concentrations of PRF-conditioned medium were applied to the co-culture system. The expression of α-amylase and AQP-5 were used to evaluate ADSC transdifferentiation. Notably, on day 7, 14, and 21, expression of both α-amylase and AQP-5 were detected in the co-cultured ADSCs. Additionally, PRF increased α-amylase and AQP-5 levels in ADSCs that were co-cultured for 7 days. These data demonstrate that ADSCs have the potential to transdifferentiate into SGALCs and that PRF can promote the transdifferentiation process. Therefore, these data reveal a possible mechanism to treat irradiation-induced salivary gland hypofunction and have translational medicine implications.
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Affiliation(s)
- Tai-Qiang Dai
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical UniversityXi’an 710032, PR China
| | - Lin-Lin Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi’an 710032, PR China
| | - Ying An
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi’an 710032, PR China
| | - Fang-Fang Xu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical UniversityXi’an 710032, PR China
| | - Ran An
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases, Laboratory Animal Center, School of Stomatology, The Fourth Military Medical UniversityXi’an 710032, PR China
| | - Hai-Yan Xu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases, Laboratory Animal Center, School of Stomatology, The Fourth Military Medical UniversityXi’an 710032, PR China
| | - Yan-Pu Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical UniversityXi’an 710032, PR China
| | - Bin Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases, Laboratory Animal Center, School of Stomatology, The Fourth Military Medical UniversityXi’an 710032, PR China
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14
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Ramli K, Aminath Gasim I, Ahmad AA, Hassan S, Law ZK, Tan GC, Baharuddin A, Naicker AS, Htwe O, Mohammed Haflah NH, B H Idrus R, Abdullah S, Ng MH. Human bone marrow-derived MSCs spontaneously express specific Schwann cell markers. Cell Biol Int 2019; 43:233-252. [PMID: 30362196 DOI: 10.1002/cbin.11067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 10/07/2018] [Indexed: 12/15/2022]
Abstract
In peripheral nerve injuries, Schwann cells (SC) play pivotal roles in regenerating damaged nerve. However, the use of SC in clinical cell-based therapy is hampered due to its limited availability. In this study, we aim to evaluate the effectiveness of using an established induction protocol for human bone marrow derived-MSC (hBM-MSCs) transdifferentiation into a SC lineage. A relatively homogenous culture of hBM-MSCs was first established after serial passaging (P3), with profiles conforming to the minimal criteria set by International Society for Cellular Therapy (ISCT). The cultures (n = 3) were then subjected to a series of induction media containing β-mercaptoethanol, retinoic acid, and growth factors. Quantitative RT-PCR, flow cytometry, and immunocytochemistry analyses were performed to quantify the expression of specific SC markers, that is, S100, GFAP, MPZ and p75 NGFR, in both undifferentiated and transdifferentiated hBM-MSCs. Based on these analyses, all markers were expressed in undifferentiated hBM-MSCs and MPZ expression (mRNA transcripts) was consistently detected before and after transdifferentiation across all samples. There was upregulation at the transcript level of more than twofolds for NGF, MPB, GDNF, p75 NGFR post-transdifferentiation. This study highlights the existence of spontaneous expression of specific SC markers in cultured hBM-MSCs, inter-donor variability and that MSC transdifferentiation is a heterogenous process. These findings strongly oppose the use of a single marker to indicate SC fate. The heterogenous nature of MSC may influence the efficiency of SC transdifferentiation protocols. Therefore, there is an urgent need to re-define the MSC subpopulations and revise the minimal criteria for MSC identification.
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Affiliation(s)
- Khairunnisa Ramli
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Ifasha Aminath Gasim
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Amir Adham Ahmad
- Department of Orthopaedics, School of Medicine, International Medical University, Negeri Sembilan, Malaysia
| | - Shariful Hassan
- Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Zhe Kang Law
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Geok Chin Tan
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Azmi Baharuddin
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Amaramalar Selvi Naicker
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ohnmar Htwe
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nor Hazla Mohammed Haflah
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ruszymah B H Idrus
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Shalimar Abdullah
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Min Hwei Ng
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
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15
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Co-Culturing Human Adipose Derived Stem Cells and Schwann Cells on Spider Silk-A New Approach as Prerequisite for Enhanced Nerve Regeneration. Int J Mol Sci 2018; 20:ijms20010071. [PMID: 30586946 PMCID: PMC6337114 DOI: 10.3390/ijms20010071] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/07/2018] [Accepted: 10/12/2018] [Indexed: 12/14/2022] Open
Abstract
Fast recovery is crucial for a successful nerve repair and an optimal functional outcome after peripheral nerve injury. Regarding donor site morbidity, autologous transplantation shows great limitations, which urge the need for alternative options in nerve reconstruction. Spider silk was reported as an advantageous material for cell adhesion, migration and proliferation, and its use in conduits is of great interest, especially in combination with cells to improve nerve regeneration. We here described the behavior of a co-culture of human Schwann cells and human adipose-derived stem cells (ADSCs) on spider silk as a new approach. After characterized by immunostaining ADSCs and Schwann cells were seeded in the co-culture on a spider silk scaffold and observed for 21 days. Results showed that cells were attached to the silk and aligned along the silk fibers. With further culture time, cells migrated along the silk and increased in number and formed an almost confluent cell layer. In immunostaining, results suggest that the cell layer was equally composed of ADSCs and Schwann cells. In conclusion, we showed that by providing a guiding structure for directed growth and cells to support nerve regeneration and remyelination, a valid alternative to autologous nerve grafts could have been found.
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16
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Zhu TB, Zhang Z, Luo P, Wang SS, Peng Y, Chu SF, Chen NH. Lipid metabolism in Alzheimer's disease. Brain Res Bull 2018; 144:68-74. [PMID: 30472149 DOI: 10.1016/j.brainresbull.2018.11.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 10/11/2018] [Accepted: 11/20/2018] [Indexed: 12/18/2022]
Abstract
Since the metabolic disorder may be the high risk that contribute to the progress of Alzheimer's disease (AD). Overtaken of High-fat, high-glucose or high-cholesterol diet may hasten the incidence of AD in later life, due to the metabolic dysfunction. But the metabolism of lipid in brain and the exact effect of lipid to brain or to the AD's pathological remain controversial. Here we summarize correlates of lipid metabolism and AD to provide more foundation for the daily nursing of AD sensitive patients.
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Affiliation(s)
- Tian-Bi Zhu
- College of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha 410208, China; State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhao Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Piao Luo
- College of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha 410208, China; State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Sha-Sha Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; School of Basic Medicine, Shanxi University of Traditional Chinese Medicine, Taiyuan, 030000, China
| | - Ye Peng
- College of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha 410208, China; State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shi-Feng Chu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Nai-Hong Chen
- College of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha 410208, China; State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; School of Basic Medicine, Shanxi University of Traditional Chinese Medicine, Taiyuan, 030000, China.
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17
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Zheng H, Du W, Duan Y, Geng K, Deng J, Gao C. Biodegradable Anisotropic Microparticles for Stepwise Cell Adhesion and Preparation of Janus Cell Microparticles. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36776-36785. [PMID: 30284813 DOI: 10.1021/acsami.8b14884] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The biomimetic anisotropic particles have different physicochemical properties on the opposite two sides, enabling diverse applications in emulsion, photonic display, and diagnosis. However, the traditional anisotropic particles have a very small size, ranging from submicrons to a few microns. The design and fabrication of anisotropic macron-sized particles with new structures and properties is still challenging. In this study, anisotropic polycaprolactone (PCL) microparticles well separated with each other were prepared by crystallization from the dilute PCL solution in a porous 3D gelatin template. They had fuzzy and smooth surfaces on each side, and a size as large as 70 μm. The fuzzy surface of the particle adsorbed significantly larger amount of proteins, and was more cell-attractive regardless of the cell types. The particles showed stronger affinity toward fibroblasts over hepatocytes, which paved a new way for cell isolation merely based on the surface morphology. After a successive seeding process, Janus cell microparticles with fibroblasts and endothelial cells (ECs) on each side were designed and obtained by making use of the anisotropic surface morphology, which showed significant difference in EC functions in terms of prostacyclin (PGl2) secretion, demonstrating the unique and appealing functions of this type of anisotropic microspheres.
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Affiliation(s)
- Honghao Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Wang Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Yiyuan Duan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine , Zhejiang University , Hangzhou 310058 , China
| | - Keyu Geng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Jun Deng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine , Zhejiang University , Hangzhou 310058 , China
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18
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Ma W, Xie X, Shao X, Zhang Y, Mao C, Zhan Y, Zhao D, Liu M, Li Q, Lin Y. Tetrahedral DNA nanostructures facilitate neural stem cell migration via activating RHOA/ROCK2 signalling pathway. Cell Prolif 2018; 51:e12503. [PMID: 30091500 DOI: 10.1111/cpr.12503] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 06/20/2018] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES The main purpose of current study was to explore the effects of tetrahedral DNA nanostructures (TDNs) on neuroectodermal (NE-4C) stem cells migration and unveil the potential mechanisms. MATERIALS AND METHODS The successfully self-assembled TDNs were also determined by dynamic light scattering (DLS). A bidirectional wound-healing assay and transwell chamber assay were employed to test the migrating behaviour of NE-4C stem cells cultured under different conditions. RESULTS Through an in vitro study, we found that stem cells could internalize TDNs quickly, and the cells' parallel and vertical migration was promoted effectively. Besides, the effects of TDNs were found being exerted by upregulating the gene and protein expression levels of RhoA, Rock2 and Vinculin, indicating that the RHOA/ROCK2 pathway was activated by the TDNs during the cell migration. CONCLUSIONS In conclusion, TDNs could enter NSCs without the aid of other transfection reagents in large amounts, whereas only small amounts of ssDNA could enter the cells. TDNs taken up by NSCs activated the RHOA/ROCK2 signalling pathway, which had effects on the relevant genes and proteins expression, eventually promoting the migration of NE-4C stem cells. These findings suggested that TDNs have great potential in application for the repair and regeneration of neural tissue.
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Affiliation(s)
- Wenjuan Ma
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xueping Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoru Shao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuxin Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chenchen Mao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuxi Zhan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Dan Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mengting Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qianshun Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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19
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Effects of Cyclic Tensile Strain on Oxidative Stress and the Function of Schwann Cells. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5746525. [PMID: 29984238 PMCID: PMC6015713 DOI: 10.1155/2018/5746525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 05/16/2018] [Indexed: 12/29/2022]
Abstract
Schwann cells (SCs) are significant due to the way in which they sustain and myelinate axons within the peripheral nervous system (PNS). This study has investigated the effect of cyclic tensile strain (CTS) on the oxidative stress and function of SCs derived from the sciatic nerves of an infant rat population. A group of 20 6-day-old Wistar rats was selected, and SCs were separated from the sciatic nerve. The SCs then underwent a 6-hour period of cyclical straining, and ElectroForce 3200 in combination with the BioDynamic chamber was employed to apply 0% and 5% strains at a 0.25 Hz frequency. The results showed that the control group suffered higher oxidative stress than that in 5% strains group (P<0.05). The results RT-PCR analysis indicated a correlation between 5% CTS and a reduction in Netrin-1 expression (P<0.05). Furthermore, there was a significant upregulation in NGF, GDNF, and Slit-2 gene expression (P<0.05). Finally, the results showed that CTS stimulate SCs by increasing the expression of nerve-oriented factors, and these importantly caused the decrease of oxidative stress, reconstruction of cell skeleton, the promotion of axonal regrowth, and the augmentation of nerves.
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20
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Zhang R, Rosen JM. The role of undifferentiated adipose-derived stem cells in peripheral nerve repair. Neural Regen Res 2018; 13:757-763. [PMID: 29862994 PMCID: PMC5998619 DOI: 10.4103/1673-5374.232457] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2018] [Indexed: 12/12/2022] Open
Abstract
Peripheral nerve injuries impose significant health and economic consequences, yet no surgical repair can deliver a complete recovery of sensory or motor function. Traditional methods of repair are less than ideal: direct coaptation can only be performed when tension-free repair is possible, and transplantation of nerve autograft can cause donor-site morbidity and neuroma formation. Cell-based therapy delivered via nerve conduits has thus been explored as an alternative method of nerve repair in recent years. Stem cells are promising sources of the regenerative core material in a nerve conduit because stem cells are multipotent in function, abundant in supply, and more accessible than the myelinating Schwann cells. Among different types of stem cells, undifferentiated adipose-derived stem cell (uASC), which can be processed from adipose tissue in less than two hours, is a promising yet underexplored cell type. Studies of uASC have emerged in the past decade and have shown that autologous uASCs are non-immunogenic, easy to access, abundant in supply, and efficacious at promoting nerve regeneration. Two theories have been proposed as the primary regenerative mechanisms of uASC: in situ trans-differentiation towards Schwann cells, and secretion of trophic and anti-inflammatory factors. Future studies need to fully elucidate the mechanisms, side effects, and efficacy of uASC-based nerve regeneration so that uASCs can be utilized in clinical settings.
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Affiliation(s)
- Rui Zhang
- Dartmouth Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | - Joseph M. Rosen
- Dartmouth Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
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21
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Ma W, Shao X, Zhao D, Li Q, Liu M, Zhou T, Xie X, Mao C, Zhang Y, Lin Y. Self-Assembled Tetrahedral DNA Nanostructures Promote Neural Stem Cell Proliferation and Neuronal Differentiation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:7892-7900. [PMID: 29424522 DOI: 10.1021/acsami.8b00833] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Stem cell-based therapy is considered a promising approach for the repair of nervous tissues. Neural stem cells (NSCs) cannot proliferate or differentiate efficiently; hence, different biomaterials have been explored to improve NSC proliferation and differentiation. However, these agents either had low bioavailability or poor biocompatibility. In this work, our group investigated the effects of tetrahedral DNA nanostructures (TDNs), a novel DNA biological material, on the self-renew and differentiation of neuroectodermal (NE-4C) stem cells. We observed that TDN treatment promoted self-renew of the stem cells via activating the Wnt/β -catenin pathway. In addition, our findings suggested that NE-4C stem cells' neuronal differentiation could be promoted effectively by TDNs via inhibiting the notch signaling pathway. In summary, this is the first report about the effects of TDNs on the proliferation and differentiation of NE-4C stem cells and the results demonstrate that TDNs have a great potential in nerve tissue regeneration.
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Affiliation(s)
- Wenjuan Ma
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Xiaoru Shao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Dan Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Qianshun Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Mengting Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Tengfei Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Xueping Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Chenchen Mao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Yuxin Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
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Ramamurthy P, White JB, Yull Park J, Hume RI, Ebisu F, Mendez F, Takayama S, Barald KF. Concomitant differentiation of a population of mouse embryonic stem cells into neuron-like cells and schwann cell-like cells in a slow-flow microfluidic device. Dev Dyn 2017; 246:7-27. [PMID: 27761977 PMCID: PMC5159187 DOI: 10.1002/dvdy.24466] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 09/16/2016] [Accepted: 09/30/2016] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND To send meaningful information to the brain, an inner ear cochlear implant (CI) must become closely coupled to as large and healthy a population of remaining spiral ganglion neurons (SGN) as possible. Inner ear gangliogenesis depends on macrophage migration inhibitory factor (MIF), a directionally attractant neurotrophic cytokine made by both Schwann and supporting cells (Bank et al., 2012). MIF-induced mouse embryonic stem cell (mESC)-derived "neurons" could potentially substitute for lost or damaged SGN. mESC-derived "Schwann cells" produce MIF, as do all Schwann cells (Huang et al., a; Roth et al., 2007; Roth et al., 2008) and could attract SGN to a "cell-coated" implant. RESULTS Neuron- and Schwann cell-like cells were produced from a common population of mESCs in an ultra-slow-flow microfluidic device. As the populations interacted, "neurons" grew over the "Schwann cell" lawn, and early events in myelination were documented. Blocking MIF on the Schwann cell side greatly reduced directional neurite outgrowth. MIF-expressing "Schwann cells" were used to coat a CI: Mouse SGN and MIF-induced "neurons" grew directionally to the CI and to a wild-type but not MIF-knockout organ of Corti explant. CONCLUSIONS Two novel stem cell-based approaches for treating the problem of sensorineural hearing loss are described. Developmental Dynamics 246:7-27, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Poornapriya Ramamurthy
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Joshua B White
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan
| | - Joong Yull Park
- School of Mechanical Engineering, College of Engineering, Chung-Ang University, Seoul, Republic of Korea
| | - Richard I Hume
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, Michigan
| | - Fumi Ebisu
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Flor Mendez
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Shuichi Takayama
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan
| | - Kate F Barald
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, Michigan
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, Michigan
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23
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Min W, Dai D, Wang J, Zhang D, Zhang Y, Han G, Zhang L, Chen C, Li X, Li Y, Yue Z. Long Noncoding RNA miR210HG as a Potential Biomarker for the Diagnosis of Glioma. PLoS One 2016; 11:e0160451. [PMID: 27673330 PMCID: PMC5038942 DOI: 10.1371/journal.pone.0160451] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 07/19/2016] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Glioma remains a diagnostic challenge because of its variable clinical presentation and a lack of reliable screening tools. Long noncoding RNAs (lncRNAs) regulate gene function in a wide range of pathophysiological processes and are therefore emerging biomarkers for prostate cancer, hepatic cancer, and other tumor diseases. However, the effective use of lncRNAs as biomarkers for the diagnosis of glioma remains unproven. METHODS This study included 42 glioma patients and 10 healthy controls. lncRNA and mRNA microarray chips were used to identify dysregulated lncRNAs in tumor tissue and tumor-adjacent normal tissue, and SYBR Green-based miRNA quantitative real-time reverse transcription polymerase chain reactions were used to validate upregulated lncRNAs. A receiver operating characteristic curve analysis was conducted to evaluate the diagnostic accuracy of the lncRNA identified as the candidate biomarker. RESULTS miR210HG levels were significantly higher in tumor tissue than in tumor-adjacent normal tissue in participating glioma patients. Serum miR210HG levels were also significantly higher in glioma patients than in healthy controls. The receiver operating characteristic curve showed that serum miR210HG was a specific diagnostic predictor of acute pulmonary embolism with an area under the curve of 0.8323 (95% confidence interval, 0.7347 to 0.9299, p < 0.001). CONCLUSION Our findings indicate that miR210HG could be an important biomarker for the diagnosis of glioma, and, as such, large-scale investigations are urgently needed to pave the way from basic research to clinical use.
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Affiliation(s)
- Weijie Min
- Department of Neurosurgery, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Dongwei Dai
- Department of Neurosurgery, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Jiaqi Wang
- Clinical Research Center, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Dandan Zhang
- Clinical Research Center, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Yuhui Zhang
- Department of Neurosurgery, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Guosheng Han
- Department of Neurosurgery, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Lei Zhang
- Department of Neurosurgery, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Chao Chen
- Department of Neurosurgery, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Xiulong Li
- Department of Neurosurgery, People’s Hospital of Yinan, Yinan, 276300, China
| | - Yanan Li
- Department of Neurosurgery, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Zhijian Yue
- Department of Neurosurgery, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
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Peripheral Motor and Sensory Nerve Conduction following Transplantation of Undifferentiated Autologous Adipose Tissue–Derived Stem Cells in a Biodegradable U.S. Food and Drug Administration–Approved Nerve Conduit. Plast Reconstr Surg 2016; 138:132-139. [DOI: 10.1097/prs.0000000000002291] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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25
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Fu X, Tong Z, Li Q, Niu Q, Zhang Z, Tong X, Tong L, Zhang X. Induction of adipose-derived stem cells into Schwann-like cells and observation of Schwann-like cell proliferation. Mol Med Rep 2016; 14:1187-93. [PMID: 27279556 PMCID: PMC4940092 DOI: 10.3892/mmr.2016.5367] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 05/21/2016] [Indexed: 01/05/2023] Open
Abstract
The peripheral nervous system has the potential for full regeneration following injury and recovery, predominantly controlled by Schwann cells (SCs). Therefore, obtaining a sufficient number of SCs in a short duration is crucial. In the present study, rat adipose-derived stem cells (ADSCs) were isolated and cultured, following which characterization of the ADSCs was performed using flow cytometry. The results showed that the cells were positive for the CD29 and CD44 markers, and negative for the CD31, CD45, CD49 and CD106 markers. The multilineage differentiation potential of the ADSCs was assayed by determining the ability of the cells to differentiate into osteoblasts and adipocytes. Following this, the ADSCs were treated with a specific medium and differentiated into Schwann-like cells. Immunofluorescence, western blot and reverse transcription-quantitative polymerase chain reaction analyses showed that ~95% of the differentiated cells expressed glial fibrillary acidic protein, S100 and p75. In addition, the present study found that a substantial number of SCs can be produced in a short duration via the mitotic feature of Schwann-like cells. These data indicated that Schwann-like cells derived from ADSCs can undergo mitotic proliferation, which may be beneficial for the treatment of peripheral nerve injury in the future.
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Affiliation(s)
- Xiumei Fu
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Zhaoxue Tong
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Qi Li
- Department of Hand Surgery, Affiliated Feng Tian Hospital, Shenyang Medical College, Shenyang, Liaoning 110001, P.R. China
| | - Qingfei Niu
- Department of Hand Surgery, Affiliated Feng Tian Hospital, Shenyang Medical College, Shenyang, Liaoning 110001, P.R. China
| | - Zhe Zhang
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xiaojie Tong
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Lei Tong
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xu Zhang
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110001, P.R. China
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26
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Yu Y, Zhou Y, Cheng T, Lu X, Yu K, Zhou Y, Hong J, Chen Y. Hypoxia enhances tenocyte differentiation of adipose-derived mesenchymal stem cells by inducing hypoxia-inducible factor-1α in a co-culture system. Cell Prolif 2016; 49:173-84. [PMID: 27021233 DOI: 10.1111/cpr.12250] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 01/26/2016] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES Tissue engineering is a promising approach for repair of tendon injuries. Adipose-derived mesenchymal stem cells (ADMSCs) have gained increasing research interest for their potential in improving healing and regeneration of injured tendons. The present study aimed to investigate effects of O2 tension and potential signalling pathways on AMDSC differentiation into tenocytes, in an indirect co-culture system. MATERIALS AND METHODS Human ADMSCs were co-cultured under normoxia (20% O2 ) and also under hypoxia (2% O2 ). Tenocyte differentiation of AMDSCs and expression of hypoxia-inducible factor-1 (HIF-1α) were analysed by reverse transcription-PCR, Western blotting and immunohistochemistry. Furthermore, HIF-1α inhibitor and inducer (FG-4592) effects on differentiation of AMDSCs were studied using qPCR, immunofluorescence and Western blotting. RESULTS Indirect co-culture with tenocytes increased differentiation of ADMSCs into tenocytes; furthermore, hypoxia further enhanced tenocyte differentiation of AMDSCs, accompanied by increased expression of HIF-1α. HIF-1α inhibitor attenuated effects of hypoxia on differentiation of ADMSCs; in contrast, FG-4592 increased differentiation of ADMSCs under both hypoxia and normoxia. CONCLUSIONS Taken together, we found that growing ADMSCs under hypoxia, or activating expression of HIF-1α to be important in differentiation of ADMSCs, which provides a foundation for application of ADMSCs in vivo for tendon regeneration.
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Affiliation(s)
- Yang Yu
- Department of Orthopaedics, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Yulong Zhou
- Department of Orthopaedics, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Tao Cheng
- Department of Orthopaedics, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Xiaolang Lu
- Department of Orthopaedics, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Kehe Yu
- Department of Orthopaedics, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Yifei Zhou
- Department of Orthopaedics, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Jianjun Hong
- Department of Orthopaedics, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Ying Chen
- Emergency Department, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
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27
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He X, Ao Q, Wei Y, Song J. Transplantation of miRNA-34a overexpressing adipose-derived stem cell enhances rat nerve regeneration. Wound Repair Regen 2016; 24:542-50. [DOI: 10.1111/wrr.12427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 01/17/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Xingliang He
- Key Lab of School of Kinesiology; Shenyang Sport University and
- Department of Tissue Engeering; China Medical University; Shenyang Liaoning China
| | - Qiang Ao
- Department of Tissue Engeering; China Medical University; Shenyang Liaoning China
| | - Yujun Wei
- Department of Tissue Engeering; China Medical University; Shenyang Liaoning China
| | - Jinrui Song
- Key Lab of School of Kinesiology; Shenyang Sport University and
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28
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Creatine Enhances Transdifferentiation of Bone Marrow Stromal Cell-Derived Neural Stem Cell Into GABAergic Neuron-Like Cells Characterized With Differential Gene Expression. Mol Neurobiol 2016; 54:1978-1991. [PMID: 26910814 DOI: 10.1007/s12035-016-9782-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 02/08/2016] [Indexed: 12/16/2022]
Abstract
Creatine was reported to induce bone marrow stromal cells (BMSC) into GABAergic neuron-like cells (GNLC). In a previous study, creatine was used as a single inducer for BMSC into GNLC with low yield. In this study, BMSC-derived neurospheres (NS) have been used in generating GABAergic phenotype. The BMSC were isolated from adult rats and used in generating neurospheres and used for producing neural stem cells (NSC). A combination of all-trans-retinoic acid (RA), the ciliary neurotrophic factor (CNTF), and creatine was used in order to improve the yield of GNLC. We also used other protocols for the transdifferentiation including RA alone; RA and creatine; RA and CNTF; and RA, CNTF, and creatine. The BMSC, NSC, and GNLC were characterized by specific markers. The activity of the GNLC was evaluated using FM1-43. The isolated BMSC expressed Oct4, fibronectin, and CD44. The NS were immunoreactive to nestin and SOX2, the NSC were immunoreactive to nestin, NF68 and NF160, while the GNLC were immunoreactive to GAD1/2, VGAT, GABA, and synaptophysin. Oct4 and c-MYC, pluripotency genes, were expressed in the BMSC, while SOX2 and c-MYC were expressed in the NSC. The activity of GNLC indicates that the synaptic vesicles were released upon stimulation. The conclusion is that the combination of RA, CNTF, and creatine induced differentiation of neurosphere-derived NSC into GNLC within 1 week. This protocol gives higher yield than the other protocols used in this study. The mechanism of induction was clearly associated with several differential pluripotent genes.
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29
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Zhou LN, Cui XJ, Su KX, Wang XH, Guo JH. Beneficial reciprocal effects of bone marrow stromal cells and Schwann cells from adult rats in a dynamic co‑culture system in vitro without intercellular contact. Mol Med Rep 2015; 12:4931-8. [PMID: 26133460 PMCID: PMC4581791 DOI: 10.3892/mmr.2015.4016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 06/11/2015] [Indexed: 01/17/2023] Open
Abstract
In order to examine how implanted bone marrow stromal cells (BMSCs) encourage peripheral nerve regeneration, the present study investigated the interaction of BMSCs and Schwann cells (SCs) using an indirect in vitro co‑culture model. SCs and BMSCs were obtained from adult Sprague‑Dawley rats. The passaged BMSCs were CD29‑ and CD44‑positive but CD45‑negative and were co‑cultured with the primary SCs using a Millicell system, which allows BMSCs and SCs to grow in the same culture medium but without direct contact. Expression of the typical SC markers S‑100 and glial fibrillary acidic protein (GFAP) of the treated BMSCs as well as the proliferation capacity of the co‑cultured SCs was evaluated by immunocytochemical staining on the 3rd and 5th day of co‑culture. Immunocytochemical staining showed that >75% of the BMSCs in the indirect co‑culture model were GFAP‑ and S‑100‑positive on the 3rd and 5th day after co‑culture, as opposed to <5% of the BMSCs in the control group. On the 3rd day after co‑culture, only a few co‑cultured BMSCs showed the typical SC‑like morphology, while most BMSCs still kept their native appearance. By contrast, on the 5th day after co‑culture, almost all of the co‑cultured BMSCs appeared with the typical SC‑like morphology. Furthermore, 70.71% of the SCs in the indirect co‑culture model were S‑100‑positive on the 5th day of co‑culture, as opposed to >30.43% of the SCs in the control group. These results indicated that BMSCs may interact synergistically with SCs with regard to promoting peripheral nerve regeneration.
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Affiliation(s)
- Li-Na Zhou
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Xiao-Jun Cui
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Kai-Xin Su
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Xiao-Hong Wang
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Jin-Hua Guo
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
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Guo JH, Liu Y, Lv ZJ, Wei WJ, Guan X, Guan QL, Leng ZQ, Zhao JY, Miao H, Liu J. Potential Neurogenesis of Human Adipose-Derived Stem Cells on Electrospun Catalpol-Loaded Composite Nanofibrous Scaffolds. Ann Biomed Eng 2015; 43:2597-608. [PMID: 25824369 DOI: 10.1007/s10439-015-1311-x] [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: 10/18/2014] [Accepted: 03/23/2015] [Indexed: 12/19/2022]
Abstract
Catalpol, a natural active ingredient extracted from the traditional Chinese medicine, was verified exhibiting beneficial effects on neural differentiation compared with commonly used chemical inducers by our previous studies. The aim of this study was to evaluate the effects of catalpol-loaded scaffold on guiding neuronal differentiation of human adipose tissue-derived stem cells (hASCs). Fabrication technique of catalpol loading into the electrospun poly(lactic-co-glycolic acid)/multi-walled carbon nanotubes/silk fibroin nanofibrous scaffolds was successfully established. The topographical and mechanical properties of the nanofibers scaffolds were characterized by scanning electron microscopy and tensile instrument, respectively. In vitro catalpol release was studied in phosphate-buffered solution at 37 °C. Immunnocytochemistry, RT-PCR, and western blot assays were performed to estimate hASCs neuronal differentiation, and it was shown that catalpol has significantly upregulated the expressions of βIII-tubulin and Nissl. Our experiments demonstrated that catalpol, as a traditional Chinese medicine extract, could be encapsulated into composite nanofibers and induce differentiation of hASCs into neural-like cells, which might offer new avenues in nerve regeneration.
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Affiliation(s)
- Jian-Hui Guo
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, People's Republic of China.,Institute of Integrative Medicine, Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Yang Liu
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, People's Republic of China.,Institute of Integrative Medicine, Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Zheng-Jun Lv
- Queen Mary University of London, London, E1 4NS, UK
| | - Wen-Juan Wei
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, People's Republic of China
| | - Xin Guan
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, People's Republic of China
| | - Qing-Lin Guan
- Center Laboratory, Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, People's Republic of China
| | - Zhi-Qian Leng
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, People's Republic of China
| | - Jing-Yuan Zhao
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, People's Republic of China
| | - Hui Miao
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, People's Republic of China
| | - Jing Liu
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, People's Republic of China. .,Institute of Integrative Medicine, Dalian Medical University, Dalian, 116044, People's Republic of China.
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Kingham PJ, Reid AJ, Wiberg M. Adipose-derived stem cells for nerve repair: hype or reality? Cells Tissues Organs 2015; 200:23-30. [PMID: 25825218 DOI: 10.1159/000369336] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2014] [Indexed: 11/19/2022] Open
Abstract
Peripheral nerve injury is a relatively commonly occurring trauma which seriously compromises the quality of life for many individuals. There is a major need to devise new treatment strategies, and one possible approach is to develop cellular therapies to bioengineer new nerve tissue and/or modulate the endogenous regenerative mechanisms within the peripheral nervous system. In this short review we describe how stem cells isolated from adipose tissue could be a suitable element of this approach. We describe the possible mechanisms through which the stem cells might exert a positive influence on peripheral nerve regeneration. These include their ability to differentiate into cells resembling Schwann cells and their secretion of a plethora of neurotrophic growth factors. We also review the literature describing the effects of these cells when tested using in vivo peripheral nerve injury models.
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32
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Chen Q, Zhang Z, Liu J, He Q, Zhou Y, Shao G, Sun X, Cao X, Gong A, Jiang P. A fibrin matrix promotes the differentiation of EMSCs isolated from nasal respiratory mucosa to myelinating phenotypical Schwann-like cells. Mol Cells 2015; 38:221-8. [PMID: 25666351 PMCID: PMC4363721 DOI: 10.14348/molcells.2015.2170] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 10/08/2014] [Accepted: 11/19/2014] [Indexed: 12/16/2022] Open
Abstract
Because Schwann cells perform the triple tasks of myelination, axon guidance and neurotrophin synthesis, they are candidates for cell transplantation that might cure some types of nervous-system degenerative diseases or injuries. However, Schwann cells are difficult to obtain. As another option, ectomesenchymal stem cells (EMSCs) can be easily harvested from the nasal respiratory mucosa. Whether fibrin, an important transplantation vehicle, can improve the differentiation of EMSCs into Schwann-like cells (SLCs) deserves further research. EMSCs were isolated from rat nasal respiratory mucosa and were purified using anti-CD133 magnetic cell sorting. The purified cells strongly expressed HNK-1, nestin, p75(NTR), S-100, and vimentin. Using nuclear staining, the MTT assay and Western blotting analysis of the expression of cell-cycle markers, the proliferation rate of EMSCs on a fibrin matrix was found to be significantly higher than that of cells grown on a plastic surface but insignificantly lower than that of cells grown on fibronectin. Additionally, the EMSCs grown on the fibrin matrix expressed myelination-related molecules, including myelin basic protein (MBP), 2',3'-cyclic nucleotide 3'-phosphodiesterase (CNPase) and galactocerebrosides (GalCer), more strongly than did those grown on fibronectin or a plastic surface. Furthermore, the EMSCs grown on the fibrin matrix synthesized more neurotrophins compared with those grown on fibronectin or a plastic surface. The expression level of integrin in EMSCs grown on fibrin was similar to that of cells grown on fibronectin but was higher than that of cells grown on a plastic surface. These results demonstrated that fibrin not only promoted EMSC proliferation but also the differentiation of EMSCs into the SLCs. Our findings suggested that fibrin has great promise as a cell transplantation vehicle for the treatment of some types of nervous system diseases or injuries.
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Affiliation(s)
- Qian Chen
- Department of Histology and Embryology, School of Medicine, Jiangsu University, Zhenjiang,
China
| | - Zhijian Zhang
- Department of Histology and Embryology, School of Medicine, Jiangsu University, Zhenjiang,
China
| | - Jinbo Liu
- Department of Orthopedics, the Third Affiliated Hospital of Suzhou University, Changzhou,
China
| | - Qinghua He
- School of Pharmacology, Jiangsu University, Zhenjiang,
China
| | - Yuepeng Zhou
- Department of Histology and Embryology, School of Medicine, Jiangsu University, Zhenjiang,
China
| | - Genbao Shao
- Department of Histology and Embryology, School of Medicine, Jiangsu University, Zhenjiang,
China
| | - Xianglan Sun
- Department of Histology and Embryology, School of Medicine, Jiangsu University, Zhenjiang,
China
| | - Xudong Cao
- Department of Chemical Engineering, University of Ottawa, Ottawa, Ontario,
Canada
| | - Aihua Gong
- Department of Histology and Embryology, School of Medicine, Jiangsu University, Zhenjiang,
China
| | - Ping Jiang
- Department of Histology and Embryology, School of Medicine, Jiangsu University, Zhenjiang,
China
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Plasticity of mesenchymal stem cells from mouse bone marrow in the presence of conditioned medium of the facial nerve and fibroblast growth factor-2. ScientificWorldJournal 2015; 2014:457380. [PMID: 25614888 PMCID: PMC4295612 DOI: 10.1155/2014/457380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 12/07/2014] [Indexed: 11/18/2022] Open
Abstract
A number of evidences show the influence of the growth of injured nerve fibers in peripheral nervous system as well as potential implant stem cells (SCs). The SCs implementation in the clinical field is promising and the understanding of proliferation and differentiation is essential. This study aimed to evaluate the plasticity of mesenchymal SCs from bone marrow of mice in the presence of culture medium conditioned with facial nerve explants and fibroblast growth factor-2 (FGF-2). The growth and morphology were assessed for over 72 hours. Quantitative phenotypic analysis was taken from the immunocytochemistry for glial fibrillary acidic protein (GFAP), protein OX-42 (OX-42), protein associated with microtubule MAP-2 (MAP-2), protein β-tubulin III (β-tubulin III), neuronal nuclear protein (NeuN), and neurofilament 200 (NF-200). Cells cultured with conditioned medium alone or combined with FGF-2 showed morphological features apparently similar at certain times to neurons and glia and a significant proliferative activity in groups 2 and 4. Cells cultivated only with conditioned medium acquired a glial phenotype. Cells cultured with FGF-2 and conditioned medium expressed GFAP, OX-42, MAP-2, β-tubulin III, NeuN, and NF-200. This study improves our understanding of the plasticity of mesenchymal cells and allows the search for better techniques with SCs.
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Georgiou M, Golding JP, Loughlin AJ, Kingham PJ, Phillips JB. Engineered neural tissue with aligned, differentiated adipose-derived stem cells promotes peripheral nerve regeneration across a critical sized defect in rat sciatic nerve. Biomaterials 2014; 37:242-51. [PMID: 25453954 DOI: 10.1016/j.biomaterials.2014.10.009] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 10/02/2014] [Indexed: 01/12/2023]
Abstract
Adipose-derived stem cells were isolated from rats and differentiated to a Schwann cell-like phenotype in vitro. The differentiated cells (dADSCs) underwent self-alignment in a tethered type-1 collagen gel, followed by stabilisation to generate engineered neural tissue (EngNT-dADSC). The pro-regenerative phenotype of dADSCs was enhanced by this process, and the columns of aligned dADSCs in the aligned collagen matrix supported and guided neurite extension in vitro. EngNT-dADSC sheets were rolled to form peripheral nerve repair constructs that were implanted within NeuraWrap conduits to bridge a 15 mm gap in rat sciatic nerve. After 8 weeks regeneration was assessed using immunofluorescence imaging and transmission electron microscopy and compared to empty conduit and nerve graft controls. The proportion of axons detected in the distal stump was 3.5 fold greater in constructs containing EngNT-dADSC than empty tube controls. Our novel combination of technologies that can organise autologous therapeutic cells within an artificial tissue construct provides a promising new cellular biomaterial for peripheral nerve repair.
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Affiliation(s)
- Melanie Georgiou
- Advanced Centre for Biochemical Engineering, Bernard Katz Building, University College London, Gordon Street, London WC1H 0AH, UK; Department of Life Health & Chemical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
| | - Jon P Golding
- Department of Life Health & Chemical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
| | - Alison J Loughlin
- Department of Life Health & Chemical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
| | - Paul J Kingham
- Department of Integrative Medical Biology, Umeå University, SE 901 87 Umeå, Sweden
| | - James B Phillips
- Department of Life Health & Chemical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK; Biomaterials & Tissue Engineering, UCL Eastman Dental Institute, University College London, 256 Gray's Inn Road, London WC1X 8LD, UK.
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Faroni A, Smith RJ, Reid AJ. Adipose derived stem cells and nerve regeneration. Neural Regen Res 2014; 9:1341-6. [PMID: 25221589 PMCID: PMC4160863 DOI: 10.4103/1673-5374.137585] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2014] [Indexed: 12/25/2022] Open
Abstract
Injuries to peripheral nerves are common and cause life-changing problems for patients alongside high social and health care costs for society. Current clinical treatment of peripheral nerve injuries predominantly relies on sacrificing a section of nerve from elsewhere in the body to provide a graft at the injury site. Much work has been done to develop a bioengineered nerve graft, precluding sacrifice of a functional nerve. Stem cells are prime candidates as accelerators of regeneration in these nerve grafts. This review examines the potential of adipose-derived stem cells to improve nerve repair assisted by bioengineered nerve grafts.
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Affiliation(s)
- Alessandro Faroni
- Blond McIndoe Laboratories, Institute of Inflammation and Repair, University of Manchester, Manchester, UK
| | - Richard Jp Smith
- Blond McIndoe Laboratories, Institute of Inflammation and Repair, University of Manchester, Manchester, UK
| | - Adam J Reid
- Blond McIndoe Laboratories, Institute of Inflammation and Repair, University of Manchester, Manchester, UK ; Department of Plastic Surgery & Burns, University Hospital of South Manchester, Manchester, UK
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Yan Y, Ma T, Gong K, Ao Q, Zhang X, Gong Y. Adipose-derived mesenchymal stem cell transplantation promotes adult neurogenesis in the brains of Alzheimer's disease mice. Neural Regen Res 2014; 9:798-805. [PMID: 25206892 PMCID: PMC4146257 DOI: 10.4103/1673-5374.131596] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2014] [Indexed: 12/11/2022] Open
Abstract
In the present study, we transplanted adipose-derived mesenchymal stem cells into the hippocampi of APP/PS1 transgenic Alzheimer's disease model mice. Immunofluorescence staining revealed that the number of newly generated (BrdU(+)) cells in the subgranular zone of the dentate gyrus in the hippocampus was significantly higher in Alzheimer's disease mice after adipose-derived mesenchymal stem cell transplantation, and there was also a significant increase in the number of BrdU(+)/DCX(+) neuroblasts in these animals. Adipose-derived mesenchymal stem cell transplantation enhanced neurogenic activity in the subventricular zone as well. Furthermore, adipose-derived mesenchymal stem cell transplantation reduced oxidative stress and alleviated cognitive impairment in the mice. Based on these findings, we propose that adipose-derived mesenchymal stem cell transplantation enhances endogenous neurogenesis in both the subgranular and subventricular zones in APP/PS1 transgenic Alzheimer's disease mice, thereby facilitating functional recovery.
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Affiliation(s)
- Yufang Yan
- State Key Laboratory of Biomembrane and Membrane Biotechnology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Tuo Ma
- State Key Laboratory of Biomembrane and Membrane Biotechnology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Kai Gong
- State Key Laboratory of Biomembrane and Membrane Biotechnology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Qiang Ao
- Institute of Neurological Disorders, Yuquan Hospital, Tsinghua University, Beijing, China
| | - Xiufang Zhang
- State Key Laboratory of Biomembrane and Membrane Biotechnology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Yandao Gong
- State Key Laboratory of Biomembrane and Membrane Biotechnology, School of Life Sciences, Tsinghua University, Beijing, China
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Abdanipour A, Tiraihi T, Taheri T. Intraspinal transplantation of motoneuron-like cell combined with delivery of polymer-based glial cell line-derived neurotrophic factor for repair of spinal cord contusion injury. Neural Regen Res 2014; 9:1003-13. [PMID: 25206752 PMCID: PMC4146307 DOI: 10.4103/1673-5374.133159] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2014] [Indexed: 12/28/2022] Open
Abstract
To evaluate the effects of glial cell line-derived neurotrophic factor transplantation combined with adipose-derived stem cells-transdifferentiated motoneuron delivery on spinal cord contusion injury, we developed rat models of spinal cord contusion injury, 7 days later, injected adipose-derived stem cells-transdifferentiated motoneurons into the epicenter, rostral and caudal regions of the impact site and simultaneously transplanted glial cell line-derived neurotrophic factor-gelfoam complex into the myelin sheath. Motoneuron-like cell transplantation combined with glial cell line-derived neurotrophic factor delivery reduced cavity formations and increased cell density in the transplantation site. The combined therapy exhibited superior promoting effects on recovery of motor function to transplantation of glial cell line-derived neurotrophic factor, adipose-derived stem cells or motoneurons alone. These findings suggest that motoneuron-like cell transplantation combined with glial cell line-derived neurotrophic factor delivery holds a great promise for repair of spinal cord injury.
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Affiliation(s)
- Alireza Abdanipour
- Shefa Neuroscience Research Center at Khatam Al-Anbia Hospital, Tehran, Iran
| | - Taki Tiraihi
- Shefa Neuroscience Research Center at Khatam Al-Anbia Hospital, Tehran, Iran
| | - Taher Taheri
- Shefa Neuroscience Research Center at Khatam Al-Anbia Hospital, Tehran, Iran
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Battiston KG, Cheung JWC, Jain D, Santerre JP. Biomaterials in co-culture systems: towards optimizing tissue integration and cell signaling within scaffolds. Biomaterials 2014; 35:4465-76. [PMID: 24602569 DOI: 10.1016/j.biomaterials.2014.02.023] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 02/12/2014] [Indexed: 02/07/2023]
Abstract
Most natural tissues consist of multi-cellular systems made up of two or more cell types. However, some of these tissues may not regenerate themselves following tissue injury or disease without some form of intervention, such as from the use of tissue engineered constructs. Recent studies have increasingly used co-cultures in tissue engineering applications as these systems better model the natural tissues, both physically and biologically. This review aims to identify the challenges of using co-culture systems and to highlight different approaches with respect to the use of biomaterials in the use of such systems. The application of co-culture systems to stimulate a desired biological response and examples of studies within particular tissue engineering disciplines are summarized. A description of different analytical co-culture systems is also discussed and the role of biomaterials in the future of co-culture research are elaborated on. Understanding the complex cell-cell and cell-biomaterial interactions involved in co-culture systems will ultimately lead the field towards biomaterial concepts and designs with specific biochemical, electrical, and mechanical characteristics that are tailored towards the needs of distinct co-culture systems.
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Affiliation(s)
- Kyle G Battiston
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 124 Edward Street, Room 461, Toronto, Ontario, Canada M5G 1G6
| | - Jane W C Cheung
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 124 Edward Street, Room 461, Toronto, Ontario, Canada M5G 1G6
| | - Devika Jain
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 124 Edward Street, Room 461, Toronto, Ontario, Canada M5G 1G6
| | - J Paul Santerre
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 124 Edward Street, Room 461, Toronto, Ontario, Canada M5G 1G6; Department of Biomaterials, Faculty of Dentistry, University of Toronto, 124 Edward Street, Room 464D, Toronto, Ontario, Canada M5G 1G6.
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Co-culture of human adipose-derived stem cells with tenocytes increases proliferation and induces differentiation into a tenogenic lineage. Plast Reconstr Surg 2014; 132:754e-766e. [PMID: 24165627 DOI: 10.1097/prs.0b013e3182a48b46] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Seeding acellularized tendons with cells is an approach for creating tissue-engineered tendon grafts with favorable biomechanical properties. It was the authors' aim to evaluate whether human adipose-derived stem cells could replace tenocytes for scaffold seeding. METHODS Adipose-derived stem cells and tenocytes were co-cultured in different ratios (3:1, 1:1, and 1:3) and with three different methods: (1) direct co-culture, (2) tenocyte-conditioned media on adipose-derived stem cells, and (3) an insert system to keep both cell types in the same media without contact. Proliferation, collagen production, and tenogenic marker expression were measured by hematocytometry, immunocytochemistry, enzyme-linked immunosorbent assay, and real-time polymerase chain reaction. RESULTS Proliferation and collagen production were similar for tenocytes and adipose-derived stem cells alone. Phenotype difference between adipose-derived stem cells and tenocytes was indicated by higher tenascin C and scleraxis expression in tenocytes. Proliferation was increased in direct co-cultures, especially at an adipose-derived stem cells-to-tenocyte ratio of 3:1, and for tenocytes in adipose-derived stem cell-conditioned media. Direct co-culture caused significant up-regulation in tenascin C expression in adipose-derived stem cells (4.0-fold; p<005). In tenocyte-conditioned media, tenascin C expression was up-regulated 2.5-fold (p<0.05). In the insert system, tenascin C expression was up-regulated 2.3-fold (p<0.05). CONCLUSIONS Adipose-derived stem cells are good candidates for tendon tissue engineering because they are similar to tenocytes in proliferation and collagen production. With an optimal ratio of 3:1, they increase proliferation in co-culture and change their phenotype toward a tenogenic direction.
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The Effect of Autophagy in the Process of Adipose-Derived Stromal Cells Differentiation into Astrocytes. J Mol Neurosci 2014; 53:608-16. [DOI: 10.1007/s12031-014-0227-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 01/01/2014] [Indexed: 01/14/2023]
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Kingham PJ, Kolar MK, Novikova LN, Novikov LN, Wiberg M. Stimulating the neurotrophic and angiogenic properties of human adipose-derived stem cells enhances nerve repair. Stem Cells Dev 2013; 23:741-54. [PMID: 24124760 DOI: 10.1089/scd.2013.0396] [Citation(s) in RCA: 155] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In future, adipose-derived stem cells (ASC) might be used to treat neurological disorders. In this study, the neurotrophic and angiogenic properties of human ASC were evaluated, and their effects in a peripheral nerve injury model were determined. In vitro growth factor stimulation of the cells resulted in increased secretion of brain-derived neurotrophic factor (BDNF), glial cell-derived neurotrophic factor (GDNF), vascular endothelial growth factor-A (VEGF-A), and angiopoietin-1 proteins. Conditioned medium from stimulated cells increased neurite outgrowth of dorsal root ganglia (DRG) neurons. Similarly, stimulated cells showed an enhanced ability to induce capillary-like tube formation in an in vitro angiogenesis assay. ASC were seeded into a fibrin conduit that was used to bridge a 10 mm rat nerve gap. After 2 weeks, the animals treated with control or stimulated ASC showed an enhanced axon regeneration distance. Stimulated cells evoked more total axon growth. Analysis of regeneration and apoptosis-related gene expression showed that both ASC and stimulated ASC enhanced GAP-43 and activating transcription factor 3 (ATF-3) expression in the spinal cord and reduced c-jun expression in the DRG. Caspase-3 expression in the DRG was reduced by stimulated ASC. Both ASC and stimulated ASC also increased the vascularity of the fibrin nerve conduits. Thus, ASC produce functional neurotrophic and angiogenic factors, creating a more desirable microenvironment for nerve regeneration.
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Affiliation(s)
- Paul J Kingham
- 1 Section for Anatomy, Department of Integrative Medical Biology, Umeå University , Umeå, Sweden
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42
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Ma T, Gong K, Ao Q, Yan Y, Song B, Huang H, Zhang X, Gong Y. Intracerebral transplantation of adipose-derived mesenchymal stem cells alternatively activates microglia and ameliorates neuropathological deficits in Alzheimer's disease mice. Cell Transplant 2013; 22 Suppl 1:S113-26. [PMID: 24070198 DOI: 10.3727/096368913x672181] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Recent studies suggest that transplantation of mesenchymal stem cells might have therapeutic effects in preventing pathogenesis of several neurodegenerative disorders. Adipose-derived mesenchymal stem cells (ADSCs) are a promising new cell source for regenerative therapy. However, whether transplantation of ADSCs could actually ameliorate the neuropathological deficits in Alzheimer's disease (AD) and the mechanisms involved has not yet been established. Here, we evaluated the therapeutic effects of intracerebral ADSC transplantation on AD pathology and spatial learning/memory of APP/PS1 double transgenic AD model mice. Results showed that ADSC transplantation dramatically reduced β-amyloid (Aβ) peptide deposition and significantly restored the learning/memory function in APP/PS1 transgenic mice. It was observed that in both regions of the hippocampus and the cortex there were more activated microglia, which preferentially surrounded and infiltrated into plaques after ADSC transplantation. The activated microglia exhibited an alternatively activated phenotype, as indicated by their decreased expression levels of proinflammatory factors and elevated expression levels of alternative activation markers, as well as Aβ-degrading enzymes. In conclusion, ADSC transplantation could modulate microglial activation in AD mice, mitigate AD symptoms, and alleviate cognitive decline, all of which suggest ADSC transplantation as a promising choice for AD therapy. This manuscript is published as part of the International Association of Neurorestoratology (IANR) supplement issue of Cell Transplantation.
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Zheng C, Zhu Q, Liu X, Huang X, He C, Jiang L, Quan D, Zhou X, Zhu Z. Effect of platelet-rich plasma (PRP) concentration on proliferation, neurotrophic function and migration of Schwann cellsin vitro. J Tissue Eng Regen Med 2013; 10:428-36. [PMID: 23723151 DOI: 10.1002/term.1756] [Citation(s) in RCA: 134] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 02/06/2013] [Accepted: 03/25/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Canbin Zheng
- Department of Orthopaedics and Microsurgery; First Affiliated Hospital of Sun Yat-Sen University; Guangzhou People's Republic of China
| | - Qingtang Zhu
- Department of Orthopaedics and Microsurgery; First Affiliated Hospital of Sun Yat-Sen University; Guangzhou People's Republic of China
| | - Xiaolin Liu
- Department of Orthopaedics and Microsurgery; First Affiliated Hospital of Sun Yat-Sen University; Guangzhou People's Republic of China
| | - Xijun Huang
- Department of Orthopaedics and Microsurgery; First Affiliated Hospital of Sun Yat-Sen University; Guangzhou People's Republic of China
| | - Caifeng He
- Guangzhou ZhongDa Medical Equipment Co. Ltd; Guangzhou People's Republic of China
| | - Li Jiang
- Orthopaedic Institute of the First Affiliated Hospital; Sun Yat-Sen University; Guangzhou People's Republic of China
| | - Daping Quan
- School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou People's Republic of China
| | - Xiang Zhou
- Department of Orthopaedics and Microsurgery; First Affiliated Hospital of Sun Yat-Sen University; Guangzhou People's Republic of China
| | - Zhaowei Zhu
- Department of Orthopaedics and Microsurgery; First Affiliated Hospital of Sun Yat-Sen University; Guangzhou People's Republic of China
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Costa HJZR, Bento RF, Salomone R, Azzi-Nogueira D, Zanatta DB, Paulino Costa M, da Silva CF, Strauss BE, Haddad LA. Mesenchymal bone marrow stem cells within polyglycolic acid tube observed in vivo after six weeks enhance facial nerve regeneration. Brain Res 2013; 1510:10-21. [PMID: 23542586 DOI: 10.1016/j.brainres.2013.03.025] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 03/04/2013] [Accepted: 03/18/2013] [Indexed: 12/15/2022]
Abstract
Autografting is the gold-standard method for facial nerve repair with tissue loss. Its association with high-quality scaffolds and cell implants has disclosed distinct experimental outcomes. The aim of this study was to evaluate the functional and histological effects of bone marrow stem cells (BMSC) combined with polyglycolic acid tube (PGAt) in autografted rat facial nerves. After neurotmesis of the mandibular branch of the rat facial nerve, surgical repair consisted of nerve autografting (groups A-E) contained in pGAT (groups B-E), filled with basement membrane matrix (groups C-E) with undifferentiated BMSC (group D) or Schwann-like cells that had differentiated from BMSC (group E). Axon morphometrics and an objective compound muscle action potentials (CMAP) analysis were conducted. Immunofluorescence assays were carried out with Schwann cell marker S100 and anti-β-galactosidase to label exogenous cells. Six weeks after surgery, animals from either cell-containing group had mean CMAP amplitudes significantly higher than control groups. Differently from other groups, facial nerves with Schwann-like cell implants had mean axonal densities within reference values. This same group had the highest mean axonal diameter in distal segments. We observed expression of the reporter gene lacZ in nerve cells in the graft and distally from it in groups D and E. Group-E cells had lacZ coexpressed with S100. In conclusion, regeneration of the facial nerve was improved by BMSC within PGAt in rats, yet Schwann-like cells were associated with superior effects. Accordingly, groups D and E had BMSC integrated in neural tissue with maintenance of former cell phenotype for six weeks.
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Abstract
In 2001, researchers at the University of California, Los Angeles, described the isolation of a new population of adult stem cells from liposuctioned adipose tissue. These stem cells, now known as adipose-derived stem cells or ADSCs, have gone on to become one of the most popular adult stem cells populations in the fields of stem cell research and regenerative medicine. As of today, thousands of research and clinical articles have been published using ASCs, describing their possible pluripotency in vitro, their uses in regenerative animal models, and their application to the clinic. This paper outlines the progress made in the ASC field since their initial description in 2001, describing their mesodermal, ectodermal, and endodermal potentials both in vitro and in vivo, their use in mediating inflammation and vascularization during tissue regeneration, and their potential for reprogramming into induced pluripotent cells.
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Faroni A, Terenghi G, Reid AJ. Adipose-derived stem cells and nerve regeneration: promises and pitfalls. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2013; 108:121-36. [PMID: 24083433 DOI: 10.1016/b978-0-12-410499-0.00005-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In order to improve the outcome of nerve regeneration following peripheral trauma injuries, the development of bioengineered nerve grafts has attracted great attention in the field of tissue engineering. Adult stem cells constitute the ideal alternative to Schwann cells (SCs) as transplantable cells in bioartificial nerve grafts. Among the various sources of stem cells with potential applications for regenerative medicine, the adipose tissue has been proven to be one of the most promising. Adipose-derived stem cells (ASCs) are easily obtained, rapidly expanded, show low immunogenicity, and can be differentiated into SCs in vitro. This chapter will focus on recent advances in the use of differentiated and undifferentiated ASCs for peripheral nerve regeneration, with a critical attention for the clinical exploitability of ASC in nerve repair strategies.
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Affiliation(s)
- Alessandro Faroni
- Faculty of Medical and Human Sciences, The University of Manchester, Blond McIndoe Laboratories, Regenerative Medicine, Institute of Inflammation and Repair, Manchester, United Kingdom.
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Dai LG, Huang GS, Hsu SH. Sciatic nerve regeneration by cocultured Schwann cells and stem cells on microporous nerve conduits. Cell Transplant 2012. [PMID: 23192007 DOI: 10.3727/096368912x658953] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Cell transplantation is a useful therapy for treating peripheral nerve injuries. The clinical use of Schwann cells (SCs), however, is limited because of their limited availability. An emerging solution to promote nerve regeneration is to apply injured nerves with stem cells derived from various tissues. In this study, different types of allogeneic cells including SCs, adipose-derived adult stem cells (ASCs), dental pulp stem cells (DPSCs), and the combination of SCs with ASCs or DPSCs were seeded on nerve conduits to test their efficacy in repairing a 15-mm-long critical gap defect of rat sciatic nerve. The regeneration capacity and functional recovery were evaluated by the histological staining, electrophysiology, walking track, and functional gait analysis after 8 weeks of implantation. An in vitro study was also performed to verify if the combination of cells led to synergistic neurotrophic effects (NGF, BDNF, and GDNF). Experimental rats receiving conduits seeded with a combination of SCs and ASCs had the greatest functional recovery, as evaluated by the walking track, functional gait, nerve conduction velocity (NCV), and histological analysis. Conduits seeded with cells were always superior to the blank conduits without cells. Regarding NCV and the number of blood vessels, conduits seeded with SCs and DPSCs exhibited better values than those seeded with DPSCs only. Results from the in vitro study confirmed the synergistic NGF production from the coculture of SCs and ASCs. It was concluded that coculture of SCs with ASCs or DPSCs in a conduit promoted peripheral nerve regeneration over a critical gap defect.
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Affiliation(s)
- Lien-Guo Dai
- Department of Chemical Engineering, National Chung Hsing University, Taichung, Taiwan
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Chen J, Tang YX, Liu YM, Chen J, Hu XQ, Liu N, Wang SX, Zhang Y, Zeng WG, Ni HJ, Zhao B, Chen YF, Tang ZP. Transplantation of adipose-derived stem cells is associated with neural differentiation and functional improvement in a rat model of intracerebral hemorrhage. CNS Neurosci Ther 2012; 18:847-54. [PMID: 22934896 DOI: 10.1111/j.1755-5949.2012.00382.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 06/27/2012] [Accepted: 07/05/2012] [Indexed: 12/14/2022] Open
Abstract
AIMS To examine whether transplantation of adipose-derived stem cells (ADSCs) induces neural differentiation and improves neural function in a rat intracerebral hemorrhage (ICH) model. METHODS Adipose-derived stem cells cells were isolated from inguinal fat pad of rat. ICH was induced by injection of collagenase type IV into the right basal ganglia of rat. Forty-eight hours after ICH, ADSCs cells (10 μL of 2-4 × 10(7) cells/mL) were injected into the right lateral cerebral ventricle. The differentiation of ADSCs was detected in vitro and in vivo. The neural function was evaluated with Zea Longa 5-grade scale at day 1, 3, 7, 14, or 28. RESULTS Our data demonstrated that ADSCs differentiated into cells that shared the similarities of neurons or astrocytes in vitro. Transplantation of ADSCs decreased cell apoptosis and the transplanted ADSCs were able to differentiate into neuron-like and astrocyte-like cells around the hematoma, accompanied with upregulation of vascular endothelial growth factor expression and improvement of neural function. CONCLUSIONS Our data suggest that transplantation of ADSCs could be a therapeutic approach for ICH stroke.
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Affiliation(s)
- Juan Chen
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Neurology, University Hospital of Hubei Institute for Nationalities, Enshi, China
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Razavi S, Ahmadi N, Kazemi M, Mardani M, Esfandiari E. Efficient transdifferentiation of human adipose-derived stem cells into Schwann-like cells: A promise for treatment of demyelinating diseases. Adv Biomed Res 2012; 1:12. [PMID: 23210071 PMCID: PMC3507009 DOI: 10.4103/2277-9175.96067] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2011] [Accepted: 02/23/2012] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Schwann cells (SCs) can provide a suitable option for treatment not only diseases of peripheral nervous system (PNS), but also diseases of central nervous system (CNS). It is difficult to obtain sufficient large number of SCs for clinical purpose because of their restricted mitotic activity, and by sacrificing one or more functioning nerves with the consequence of loss of sensation. So, providing an alternative source for transplantation is desired. The aim of this study was isolation, characterization of human adipose derived stem cells (ADSCs), and transdifferentiation into Schwann-cells. MATERIALS AND METHODS After isolation of ADSCs by mechanical and enzymatic digestion of adipose samples, characterization human ADSCs using flow cytometry was carried out. Human ADSCs were sequentially treated with various factors for neurosphere formation and terminal differentiation into Schwann-like cells. We used Schwann cell markers, GFAP and S100 to confirm the effectiveness of the differentiation of human ADSCs using Immunostaining and real time RT-PCR techniques. RESULTS Flow cytometry analysis of ADSC showed isolated stem cells were positive for CD90 and CD44 markers of mesenchymal stem cells, but for CD45 and CD34 markers were negative. Dual immunofluorescence staining and real time RT-PCR analysis for GFAP and S100 markers were revealed that approximately 90% of differentiated cells expressed co-markers. CONCLUSION We indicated that human ADSCs have a suitable option to induce Schwann-like cells for autologous transplantation, offer promise for treatment in demyelinating diseases.
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Affiliation(s)
- Shanhaz Razavi
- Department of Anatomical Sciences and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nafiseh Ahmadi
- Department of Biology, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Mohammad Kazemi
- Department of Anatomical Sciences and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Mardani
- Department of Anatomical Sciences and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ebrahim Esfandiari
- Department of Anatomical Sciences and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
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