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Qian E, Kang Y. Branched Channels in Porous β-Tricalcium Phosphate Scaffold Promote Vascularization. ACS Appl Mater Interfaces 2024; 16:19081-19093. [PMID: 38442339 DOI: 10.1021/acsami.3c17328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Rapid and efficient vascularization is still considerably challenging for a porous β-tricalcium phosphate (β-TCP) scaffold to achieve. To overcome this challenge, branched channels were created in the porous β-TCP scaffold by using 3D printing and a template-casting method to facilitate the instant flow of blood supply. Human bone mesenchymal stem cells (hBMSCs) and human umbilical vein endothelial cells (HUVECs) were seeded in the channeled porous scaffolds and characterized through a double-stranded DNA (dsDNA) assay, alkaline phosphatase (ALP) assay, and cell migration. Channeled porous β-TCP scaffolds were then implanted in the subcutaneous pockets of mice. Histological staining and immunohistochemical staining on vascularization and bone-related markers were carried out on the embedded paraffin sections. Results from in vitro experiments showed that branched channels significantly promoted HUVECs' infiltration, migration, proliferation, and angiogenesis, and also promoted the proliferation and osteogenesis differentiation of hBMSCs. In vivo implantation results showed that, in the early stage after implantation, cells significantly migrated into branched channeled scaffolds. More matured blood vessels formed in the branched channeled scaffolds compared to that in nonchanneled and straight channeled scaffolds. Beside promoting vascularization, the branched channels also stimulated the infiltration of bone-related cells into the scaffolds. These results suggested that the geometric design of branched channels in the porous β-TCP scaffold promoted rapid vascularization and potentially stimulated bone cells recruitment.
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Affiliation(s)
- Enze Qian
- Department of Ocean & Mechanical Engineering, Florida Atlantic University, Boca Raton, Florida 33431, United States
| | - Yunqing Kang
- Department of Ocean & Mechanical Engineering, Florida Atlantic University, Boca Raton, Florida 33431, United States
- Department of Biomedical Science, Florida Atlantic University, Boca Raton, Florida 33431, United States
- Faculty of Integrative Biology Ph.D. Program, Department of Biological Science, Florida Atlantic University, Boca Raton, Florida 33431, United States
- Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton, Florida 33431, United States
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Wang S, Wang H, Lu P, Gong L, Gu X, Li M. Mechanisms underlying the cell-matrixed nerve grafts repairing peripheral nerve defects. Bioact Mater 2024; 31:563-577. [PMID: 37753326 PMCID: PMC10518682 DOI: 10.1016/j.bioactmat.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 09/04/2023] [Accepted: 09/04/2023] [Indexed: 09/28/2023] Open
Abstract
Decellularized extracellular matrix (dECM), with its distinct biological properties, has gained significant attention as a natural biomaterial. Leveraging its potentials, we successfully developed a three-dimensional matrix-based oriented nerve graft by encapsulating a fibrous scaffold with multilayered conformationally intact and biologically active human bone marrow mesenchymal stem cell-derived decellularized extracellular matrix (hBMSC-dECM). Convincingly, the hBMSC-dECM group exhibited comparable functional recoveries to the autograft group by postoperative week 12. In the comprehensive analysis, the molecular regulations in the hBMSC-dECM group were more intricate and nuanced compared to the autograft group. Nevertheless, both groups displayed similar molecular regulatory processes in terms of vascularization and extracellular matrix. Notably, the hBMSC-dECM group demonstrated sustained high levels of regulation in axon and myelin regeneration at week 12, while the immunomodulation returned to the normal levels after peaking at week 2. Collectively, our findings illustrated the satisfactory construction of a cell-matrixed nerve graft that established a microenvironment conducive to nerve regeneration, and elucidated the distinct molecular regulation patterns and characteristics associated with different repair modes.
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Affiliation(s)
- Shanshan Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, Jiangsu, 226001, PR China
- Department of Obstetrics and Gynecology , Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, PR China
| | - Hongkui Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, Jiangsu, 226001, PR China
| | - Panjian Lu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, Jiangsu, 226001, PR China
| | - Leilei Gong
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, Jiangsu, 226001, PR China
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, Jiangsu, 226001, PR China
| | - Meiyuan Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, Jiangsu, 226001, PR China
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Yaralı Çevik ZB, Karaman O, Topaloğlu N. Photobiomodulation therapy at red and near-infrared wavelengths for osteogenic differentiation in the scaffold-free microtissues. J Photochem Photobiol B 2023; 238:112615. [PMID: 36493718 DOI: 10.1016/j.jphotobiol.2022.112615] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 11/09/2022] [Accepted: 11/29/2022] [Indexed: 12/04/2022]
Abstract
One of the novel strategies for bone tissue regeneration is photobiomodulation (PBM) which depends on the red and near-infrared light absorption by mitochondria and may trigger bone tissue regeneration via the production of intracellular ROS and ATP, NO release, etc. It is also important to identify the changes in those signal molecule levels in an in vivo mimicking platform such as 3-Dimensional (3D) Scaffold Free Microtissues (SFMs) that may serve more natural osteogenic differentiation responses to PBM. Herein, we aimed to increase the osteogenic differentiation capability of the co-culture of Human Bone Marrow Stem Cells (hBMSC) and Human Umbilical Vein Endothelial Cells (HUVECs) on 3D SFMs by triple light treatment at 655 and 808-nm of wavelengths with the energy densities of 1, 3, and 5 J/cm2. We performed the analysis of cell viability, diameter measurements of SFMs, intracellular ROS production, NO release, ATP activity, temperature measurements, DNA content, ALPase activity, calcium content, and relative gene expressions of ALP, Collagen, and Osteopontin by qRT-PCR. It was found that both wavelengths were effective in terms of the viability of SFMs. 1 and 5 J/cm2 energy densities of both wavelengths increased the SFM diameter with significant changes in intracellular ROS, ATP, and NO levels compared to the control group. We concluded that PBM therapy was successful to induce osteogenesis. 1 J/cm2 at 655 nm of wavelength and 5 J/cm2 at 808 nm of wavelength were the most effective energy densities for osteogenic differentiation on SFMs with triple light treatment.
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Affiliation(s)
- Ziyşan Buse Yaralı Çevik
- Biomedical Test Calibration Application and Research Center, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey; Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey.
| | - Ozan Karaman
- Biomedical Test Calibration Application and Research Center, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey; Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey; Department of Biomedical Engineering, Faculty of Engineering and Architecture, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey.
| | - Nermin Topaloğlu
- Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey; Department of Biomedical Engineering, Faculty of Engineering and Architecture, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey.
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AlHowaish NA, AlSudani DI, AlMuraikhi NA. Evaluation of a hyaluronic acid hydrogel (Restylane Lyft) as a scaffold for dental pulp regeneration in a regenerative endodontic organotype model. Odontology 2022; 110:726-734. [PMID: 35471745 DOI: 10.1007/s10266-022-00710-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 04/11/2022] [Indexed: 12/14/2022]
Abstract
Scaffolds are crucial elements for dental pulp regeneration. Most of the currently used scaffolds in regenerative endodontic procedures (REPs) are unsuitable for chairside clinical use. This study aimed to evaluate the effect of an injectable synthetic scaffold (Restylane Lyft) on human bone marrow mesenchymal stem cell (hBMSC) viability, proliferation, and osteo/dentinogenic differentiation in a regenerative endodontic organotype model (REM). hBMSC were loaded in an REM either alone (hBMSC group) or mixed with the Restylane Lyft scaffold (Restylane/hBMSC group) and cultured in basal culture medium (n = 9/group). hMSC on culture plates served as controls. Cell viability and proliferation were measured using AlamarBlue assay. The loaded REM was cultured in an osteogenic differentiation medium to measure alkaline phosphatase activity (ALP) and examine the expression of the osteo/dentinogenic markers using real-time reverse transcriptase polymerase chain reaction. Cell viability in all groups increased significantly over 5 days. The Restylane/hBMSC group showed significantly higher ALP activity and dentin sialophosphoprotein, osteocalcin, and bone sialoprotein genes expression than the hBMSC and the control groups. Restylane Lyft, a hyaluronic acid (HA) injectable, FDA-approved hydrogel, maintained cell viability and proliferation and promoted osteo/dentinogenic differentiation of hBMSC when cultured in an REM. Henceforth, it could be a promising chairside scaffold material for REPs.
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Affiliation(s)
- Norah A AlHowaish
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, 11612, Saudi Arabia
| | - Dina I AlSudani
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, 11612, Saudi Arabia.
| | - Nihal A AlMuraikhi
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, 11461, Saudi Arabia
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Cho HY, Lee S, Park JH, Kwak YH, Kweon H, Kang D. Competitive Hybridization of a Microarray Identifies CMKLR1 as an Up-Regulated Gene in Human Bone Marrow-Derived Mesenchymal Stem Cells Compared to Human Embryonic Fibroblasts. Curr Issues Mol Biol 2022; 44:1497-1512. [PMID: 35723360 PMCID: PMC9164045 DOI: 10.3390/cimb44040102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/21/2022] [Accepted: 03/21/2022] [Indexed: 11/28/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have been widely applied to the regeneration of damaged tissue and the modulation of immune response. The purity of MSC preparation and the delivery of MSCs to a target region are critical factors for success in therapeutic application. In order to define the molecular identity of an MSC, the gene expression pattern of a human bone marrow-derived mesenchymal stem cell (hBMSC) was compared with that of a human embryonic fibroblast (hEF) by competitive hybridization of a microarray. A total of 270 and 173 genes were two-fold up- and down-regulated with FDR < 0.05 in the hBMSC compared to the hEF, respectively. The overexpressed genes in the hBMSC over the hEF, including transcription factors, were enriched for biological processes such as axial pattern formation, face morphogenesis and skeletal system development, which could be expected from the differentiation potential of MSCs. CD70 and CD339 were identified as additional CD markers that were up-regulated in the hBMSC over the hEF. The differential expression of CD70 and CD339 might be exploited to distinguish hEF and hBMSC. CMKLR1, a chemokine receptor, was up-regulated in the hBMSC compared to the hEF. RARRES2, a CMKLR1 ligand, stimulated specific migration of the hBMSC, but not of the hEF. RARRES2 manifested as ~two-fold less effective than SDF-1α in the directional migration of the hBMSC. The expression of CMKLR1 was decreased upon the osteoblastic differentiation of the hBMSC. However, the RARRES2-loaded 10% HA-silk scaffold did not recruit endogenous cells to the scaffold in vivo. The RARRES2−CMKLR1 axis could be employed in recruiting systemically delivered or endogenous MSCs to a specific target lesion.
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Affiliation(s)
- Hee-Yeon Cho
- Ilsong Institute of Life Science, Hallym University, Beodeunaru-ro 55, Seoul 07247, Korea; (H.-Y.C.); (S.L.); (J.-H.P.)
- Department of Biomedical Gerontology, Hallym University Graduate School, Chuncheon 24252, Korea
| | - Sooho Lee
- Ilsong Institute of Life Science, Hallym University, Beodeunaru-ro 55, Seoul 07247, Korea; (H.-Y.C.); (S.L.); (J.-H.P.)
| | - Ji-Hong Park
- Ilsong Institute of Life Science, Hallym University, Beodeunaru-ro 55, Seoul 07247, Korea; (H.-Y.C.); (S.L.); (J.-H.P.)
- Department of Biomedical Gerontology, Hallym University Graduate School, Chuncheon 24252, Korea
| | - Yoon Hae Kwak
- Department of Orthopaedic Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul 05505, Korea;
| | - HaeYong Kweon
- Industrial Insect and Sericulture Division, National Institute of Agricultural Sciences, RDA, Wanju-gun 55365, Korea;
| | - Dongchul Kang
- Ilsong Institute of Life Science, Hallym University, Beodeunaru-ro 55, Seoul 07247, Korea; (H.-Y.C.); (S.L.); (J.-H.P.)
- Department of Biomedical Gerontology, Hallym University Graduate School, Chuncheon 24252, Korea
- Correspondence: ; Tel.: +82-2-6923-8230
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Xia J, Liu ZY, Han ZY, Yuan Y, Shao Y, Feng XQ, Weitz DA. Regulation of cell attachment, spreading, and migration by hydrogel substrates with independently tunable mesh size. Acta Biomater 2022; 141:178-189. [PMID: 35041902 PMCID: PMC8898306 DOI: 10.1016/j.actbio.2022.01.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 12/25/2021] [Accepted: 01/13/2022] [Indexed: 12/12/2022]
Abstract
Hydrogels are widely used as substrates to investigate interactions between cells and their microenvironment as they mimic many attributes of the extracellular matrix. The stiffness of hydrogels is an important property that is known to regulate cell behavior. Beside stiffness, cells also respond to structural cues such as mesh size. However, since the mesh size of hydrogel is intrinsically coupled to its stiffness, its role in regulating cell behavior has never been independently investigated. Here, we report a hydrogel system whose mesh size and stiffness can be independently controlled. Cell behavior, including spreading, migration, and formation of focal adhesions is significantly altered on hydrogels with different mesh sizes but with the same stiffness. At the transcriptional level, hydrogel mesh size affects cellular mechanotransduction by regulating nuclear translocation of yes-associated protein. These findings demonstrate that the mesh size of a hydrogel plays an important role in cell-substrate interactions. STATEMENT OF SIGNIFICANCE: Hydrogels are ideal platforms with which to investigate interactions between cells and their microenvironment as they mimic many physical properties of the extracellular matrix. However, the mesh size of hydrogels is intrinsically coupled to their stiffness, making it challenging to investigate the contribution of mesh size to cell behavior. In this work, we use hydrogel-on-glass substrates with defined thicknesses whose stiffness and mesh size can be independently tuned. We use these substrates to isolate the effects of mesh size on cell behavior, including attachment, spreading, migration, focal adhesion formation and YAP localization in the nucleus. Our results show that mesh size has significant, yet often overlooked, effects, on cell behavior, and contribute to a further understanding of cell-substrate interactions.
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Affiliation(s)
- Jing Xia
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - Zong-Yuan Liu
- Department of Engineering Mechanics, Institute of Biomechanics and Medical Engineering, Tsinghua University, Beijing 100084, China
| | - Zheng-Yuan Han
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - Yuan Yuan
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - Yue Shao
- Department of Engineering Mechanics, Institute of Biomechanics and Medical Engineering, Tsinghua University, Beijing 100084, China
| | - Xi-Qiao Feng
- Department of Engineering Mechanics, Institute of Biomechanics and Medical Engineering, Tsinghua University, Beijing 100084, China.
| | - David A Weitz
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA; Department of Physics, Harvard University, Cambridge, MA 02138, USA.
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Großkopf H, Vogel S, Müller CD, Köhling S, Dürig JN, Möller S, Schnabelrauch M, Rademann J, Hempel U, von Bergen M, Schubert K. Identification of intracellular glycosaminoglycan-interacting proteins by affinity purification mass spectrometry. Biol Chem 2021; 402:1427-1440. [PMID: 34472763 DOI: 10.1515/hsz-2021-0167] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 07/04/2021] [Indexed: 12/20/2022]
Abstract
Glycosaminoglycans (GAGs) are essential functional components of the extracellular matrix (ECM). Artificial GAGs like sulfated hyaluronan (sHA) exhibit pro-osteogenic properties and boost healing processes. Hence, they are of high interest for supporting bone regeneration and wound healing. Although sulfated GAGs (sGAGs) appear intracellularly, the knowledge about intracellular effects and putative interaction partners is scarce. Here we used an affinity-purification mass spectrometry-based (AP-MS) approach to identify novel and particularly intracellular sGAG-interacting proteins in human bone marrow stromal cells (hBMSC). Overall, 477 proteins were found interacting with at least one of four distinct sGAGs. Enrichment analysis for protein localization showed that mainly intracellular and cell-associated interacting proteins were identified. The interaction of sGAG with α2-macroglobulin receptor-associated protein (LRPAP1), exportin-1 (XPO1), and serine protease HTRA1 (HTRA1) was confirmed in reverse assays. Consecutive pathway and cluster analysis led to the identification of biological processes, namely processes involving binding and processing of nucleic acids, LRP1-dependent endocytosis, and exosome formation. Respecting the preferentially intracellular localization of sGAG in vesicle-like structures, also the interaction data indicate sGAG-specific modulation of vesicle-based transport processes. By identifying many sGAG-specific interacting proteins, our data provide a resource for upcoming studies aimed at molecular mechanisms and understanding of sGAG cellular effects.
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Affiliation(s)
- Henning Großkopf
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research GmbH - UFZ, Leipzig D-04318, Germany
| | - Sarah Vogel
- Institute of Physiological Chemistry, Medical Faculty, Technische Universität Dresden, Dresden D-01307, Germany
| | - Claudia Damaris Müller
- Institute of Physiological Chemistry, Medical Faculty, Technische Universität Dresden, Dresden D-01307, Germany
| | - Sebastian Köhling
- Institute of Pharmacy, Freie Universität Berlin, Berlin D-14195, Germany
| | - Jan-Niklas Dürig
- Institute of Pharmacy, Freie Universität Berlin, Berlin D-14195, Germany
| | - Stephanie Möller
- Biomaterials Department, INNOVENT e.V. Technologieentwicklung Jena, Jena D-07745, Germany
| | - Matthias Schnabelrauch
- Biomaterials Department, INNOVENT e.V. Technologieentwicklung Jena, Jena D-07745, Germany
| | - Jörg Rademann
- Institute of Pharmacy, Freie Universität Berlin, Berlin D-14195, Germany
| | - Ute Hempel
- Institute of Physiological Chemistry, Medical Faculty, Technische Universität Dresden, Dresden D-01307, Germany
| | - Martin von Bergen
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research GmbH - UFZ, Leipzig D-04318, Germany
- Institute of Biochemistry, Faculty of Life Sciences, Universität Leipzig, Leipzig D-04103, Germany
| | - Kristin Schubert
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research GmbH - UFZ, Leipzig D-04318, Germany
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Li S, Stöckl S, Lukas C, Götz J, Herrmann M, Federlin M, Grässel S. hBMSC-Derived Extracellular Vesicles Attenuate IL-1β-Induced Catabolic Effects on OA-Chondrocytes by Regulating Pro-inflammatory Signaling Pathways. Front Bioeng Biotechnol 2020; 8:603598. [PMID: 33425869 PMCID: PMC7793861 DOI: 10.3389/fbioe.2020.603598] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/20/2020] [Indexed: 12/25/2022] Open
Abstract
Background: Human bone marrow-derived mesenchymal stromal cells (hBMSCs) provide a promising therapeutic approach in the cell-based therapy of osteoarthritis (OA). However, several disadvantages evolved recently, including immune responses of the host and regulatory hurdles, making it necessary to search for alternative treatment options. Extracellular vesicles (EVs) are released by multiple cell types and tissues into the extracellular microenvironment, acting as message carriers during intercellular communication. Here, we investigate putative protective effects of hBMSC-derived EVs as a cell-free approach, on IL-1β-stimulated chondrocytes obtained from OA-patients. Methods: EVs were harvested from the cell culture supernatant of hBMSCs by a sequential ultracentrifugation process. Western blot, scanning electron microscopy (SEM), and nanoparticle tracking analysis (NTA) were performed to characterize the purified particles as EVs. Intracellular incorporation of EVs, derived from PHK26-labeled hBMSCs, was tested by adding the labeled EVs to human OA chondrocytes (OA-CH), followed by fluorescence microscopy. Chondrocytes were pre-stimulated with IL-1β for 24 h, followed by EVs treatment for 24 h. Subsequently, proliferation, apoptosis, and migration (wound healing) were analyzed via BrdU assay, caspase 3/7 assay, and scratch assay, respectively. With qRT-PCR, the relative expression level of anabolic and catabolic genes was determined. Furthermore, immunofluorescence microscopy and western blot were performed to evaluate the protein expression and phosphorylation levels of Erk1/2, PI3K/Akt, p38, TAK1, and NF-κB as components of pro-inflammatory signaling pathways in OA-CH. Results: EVs from hBMSCs (hBMSC-EVs) promote proliferation and reduce apoptosis of OA-CH and IL-1β-stimulated OA-CH. Moreover, hBMSC-EVs attenuate IL-1β-induced reduction of chondrocyte migration. Furthermore, hBMSC-EVs increase gene expression of PRG4, BCL2, and ACAN (aggrecan) and decrease gene expression of MMP13, ALPL, and IL1ß in OA-CH. Notably, COL2A1, SOX9, BCL2, ACAN, and COMP gene expression levels were significantly increased in IL-1β+ EV groups compared with those IL-1β groups without EVs, whereas the gene expression levels of COLX, IL1B, MMP13, and ALPL were significantly decreased in IL-1β+ EV groups compared to IL-1β groups without EVs. In addition, the phosphorylation status of Erk1/2, PI3K/Akt, p38, TAK1, and NF-κB signaling molecules, induced by IL-1β, is prevented by hBMSC- EVs. Conclusion: EVs derived from hBMSCs alleviated IL-1β-induced catabolic effects on OA-CH via promoting proliferation and migration and reducing apoptosis, probably via downregulation of IL-1ß-activated pro-inflammatory Erk1/2, PI3K/Akt, p38, TAK1, and NF-κB signaling pathways. EVs released from BMSCs may be considered as promising cell-free intervention strategy in cartilage regenerative medicine, avoiding several adverse effects of cell-based regenerative approaches.
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Affiliation(s)
- Shushan Li
- Department of Orthopaedic Surgery, Experimental Orthopaedics, Centre for Medical Biotechnology (ZMB/Biopark 1), University of Regensburg, Regensburg, Germany
| | - Sabine Stöckl
- Department of Orthopaedic Surgery, Experimental Orthopaedics, Centre for Medical Biotechnology (ZMB/Biopark 1), University of Regensburg, Regensburg, Germany
| | - Christoph Lukas
- Department of Orthopaedic Surgery, Experimental Orthopaedics, Centre for Medical Biotechnology (ZMB/Biopark 1), University of Regensburg, Regensburg, Germany
| | - Julia Götz
- Department of Orthopaedic Surgery, Asklepiosklinikum, Bad Abbach, Germany
| | - Marietta Herrmann
- Interdisciplinary Center for Clinical Research (IZKF) Group Tissue Regeneration in Musculoskeletal Diseases, Bernhard-Heine-Centrum for Locomotion Research, University Hospital Würzburg, University of Würzburg, Würzburg, Germany
| | - Marianne Federlin
- Department of Conservative Dentistry and Periodontology, University Medical Center Regensburg, Regensburg, Germany
| | - Susanne Grässel
- Department of Orthopaedic Surgery, Experimental Orthopaedics, Centre for Medical Biotechnology (ZMB/Biopark 1), University of Regensburg, Regensburg, Germany.,Department of Orthopaedic Surgery, Asklepiosklinikum, Bad Abbach, Germany
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Rochira A, Siculella L, Damiano F, Palermo A, Ferrante F, Carluccio MA, Calabriso N, Giannotti L, Stanca E. Concentrated Growth Factors (CGF) Induce Osteogenic Differentiation in Human Bone Marrow Stem Cells. Biology (Basel) 2020; 9:E370. [PMID: 33143015 DOI: 10.3390/biology9110370] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/27/2020] [Accepted: 10/27/2020] [Indexed: 12/13/2022]
Abstract
Bone regeneration is a complex process regulated by several factors that control overlapping biological processes, coordinating interactions among distinct cell populations. There is a great interest in identifying new strategies for inducing osteogenesis in a safe and efficient manner. Concentrated Growth Factor (CGF) is an autologous blood derived product obtained by centrifugation of venous blood following the procedure set on the Silfradent device. In this study the effects of CGF on osteogenic differentiation of human Bone Marrow Stem Cells (hBMSC) in vitro have been investigated; hBMSC were cultured with CGF or osteogenic medium, for 21 days. The osteogenic differentiation was evaluated measuring alkaline phosphatase (ALP) enzyme activity, matrix mineralization by alizarin red staining and through mRNA and protein quantification of osteogenic differentiation markers by Real-time PCR and Western blotting, respectively. The treatment with CGF stimulated ALP activity and promoted matrix mineralization compared to control and seems to be more effective than osteogenic medium. Also, hBMSC lost mesenchymal markers and showed other osteogenic features. Our study showed for the first time that CGF alone is able to induce osteogenic differentiation in hBMSC. The application of CGF on hBMSC osteoinduction might offer new clinical and biotechnological strategies in the tissue regeneration field.
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Sun S, Yuan L, An Z, Shi D, Xin J, Jiang J, Ren K, Chen J, Guo B, Zhou X, Zhou Q, Jin X, Ruan S, Cheng T, Xia N, Li J. DLL4 restores damaged liver by enhancing hBMSC differentiation into cholangiocytes. Stem Cell Res 2020; 47:101900. [PMID: 32622343 DOI: 10.1016/j.scr.2020.101900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 05/30/2020] [Accepted: 06/24/2020] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND & AIMS Biliary injury is one of the main pathological mechanisms of fulminant hepatic failure (FHF). Delta-like ligand 4 (DLL4)-mediated Notch activation contributes to reversing biliary injury; however, the specific role of DLL4 in biliary restoration is still unclear. This study aimed to determine whether human bone marrow mesenchymal stem cells (hBMSCs) can differentiate into biliary epithelial cells (cholangiocytes) in vitro and in vivo and to clarify the role of DLL4 in restoring damaged liver by enhancing cholangiocyte differentiation. METHODS hBMSCs were transplanted into immunodeficient mice (FRGS) with FHF induced by the hamster-anti-mouse CD95 antibody JO2. The appearance of human cholangiocytes was evaluated in the generated hBMSC-FRGS mice by q-PCR expression, flow cytometry and immunohistochemistry. The potency of DLL4 in inducing cholangiocyte differentiation from hBMSCs was assessed by observing the cell morphology and measuring the expression of cholangiocyte-specific genes and proteins. RESULTS Human KRT19- and KRT7-double-positive cholangiocyte-like cells appeared in hBMSC-FRGS mice at 12 weeks after transplantation. After these cells were separated and collected by fluorescent-activated cell sorting (FACS), there were high levels of expression of eight typical human cholangiocyte-specific genes and proteins (e.g., KRT19 and KRT7). Furthermore, hBMSC-derived cholangiocytes induced by DLL4 had a better shape with higher nucleus/cytoplasm ratios and showed a specific increase in the expression of cholangiocyte-specific genes and proteins (e.g., KRT19, KRT7, SOX9 and CFTR). CONCLUSIONS Cholangiocytes can be efficiently differentiated from hBMSCs in vivo and in vitro. DLL4 restores damaged liver by enhancing cholangiocyte differentiation from hBMSCs and has the potential to be used in future clinical therapeutic applications.
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Affiliation(s)
- Suwan Sun
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Lunzhi Yuan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences and School of Public Health, Xiamen University, Xiamen 361102, China
| | - Zhanglu An
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China; Graduate School, Hebei North University, Zhangjiakou, Hebei 075000, China
| | - Dongyan Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Jiaojiao Xin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Jing Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Keke Ren
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Jiaxian Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Beibei Guo
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Xingping Zhou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Qian Zhou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Xiaojun Jin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China; Graduate School, Hebei North University, Zhangjiakou, Hebei 075000, China
| | - Sihan Ruan
- Taizhou Central Hospital, Taizhou University Hospital, 999 Donghai Rd., Taizhou 318000, China
| | - Tong Cheng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences and School of Public Health, Xiamen University, Xiamen 361102, China.
| | - Ningshao Xia
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences and School of Public Health, Xiamen University, Xiamen 361102, China.
| | - Jun Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China; Taizhou Central Hospital, Taizhou University Hospital, 999 Donghai Rd., Taizhou 318000, China.
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11
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Ni L, Yu J, Gui X, Lu Z, Wang X, Guo H, Zhou Y. Overexpression of RPN2 promotes osteogenic differentiation of hBMSCs through the JAK/STAT3 pathway. FEBS Open Bio 2019; 10:158-167. [PMID: 31743606 PMCID: PMC6943221 DOI: 10.1002/2211-5463.12766] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 10/28/2019] [Accepted: 11/18/2019] [Indexed: 12/13/2022] Open
Abstract
Osteoporosis is characterized by decreased bone mass and degenerating bone structure, which cause severe bone fragility and increase the risk for fractures. Human bone mesenchymal stem cells (hBMSCs) differentiate into osteoblasts through osteogenesis, and disturbances in the balance between bone generation and degeneration underlie the pathogenesis of senile osteoporosis. The highly conserved glycoprotein Ribophorin II (RPN2) is involved in multiple biological reactions, but the role of RPN2 in the osteogenic differentiation of hBMSCs and their molecular etiology is incompletely understood. Here, we show that RPN2 expression is up‐regulated in hBMSCs during osteogenic differentiation. In vitro assays revealed that silencing of RPN2 inhibited hBMSC differentiation into osteoblasts. Moreover, RPN2 overexpression enhanced the expression of linked genes and resulted in high alkaline phosphatase activity. Our results suggest that RPN2 targets Janus kinase 1 (JAK1), and RPN2 overexpression was observed to induce JAK1 ubiquitination. Depletion of JAK1 facilitated osteogenic differentiation of RPN2‐silenced hBMSCs. Moreover, western blot analysis revealed that RPN2 silencing suppressed the stimulation and nuclear translocation of the downstream signal transducer and activator of transcription 3 sensor; this could be reversed via RPN2 overexpression. This research sheds light on an innovative molecular mechanism that is associated with hBMSC differentiation into osteoblasts and may facilitate bone anabolism through RPN2.
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Affiliation(s)
- Ling Ni
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Jianhua Yu
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Xueqiong Gui
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Zhonghua Lu
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Xiwen Wang
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Hongyan Guo
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
| | - Ying Zhou
- Department of Geriatrics, Yangpu District Shidong Hospital, Shanghai, China
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12
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Pilz S, Gebert A, Voss A, Oswald S, Göttlicher M, Hempel U, Eckert J, Rohnke M, Janek J, Calin M. Metal release and cell biological compatibility of beta-type Ti-40Nb containing indium. J Biomed Mater Res B Appl Biomater 2017; 106:1686-1697. [PMID: 28842963 DOI: 10.1002/jbm.b.33976] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/07/2017] [Accepted: 07/29/2017] [Indexed: 12/19/2022]
Abstract
Small indium (In) additions up to 5 wt % to the beta-type Ti-40Nb alloy effectively improve its mechanical biofunctionality. The impact on its biocompatibility is addressed in this work. Comparative electrochemical polarization studies and inductively coupled plasma optical emission spectrometry analyses were conducted in Tris-buffered saline (on the basis of 150 mM NaCl) with pH 7.6 and 2.0 at 310 ± 1 K with Ti-6Al-4V as reference. The metal ion releases from beta-type alloys were generally very low, for example, those of In3+ ions from (Ti-40Nb)-4In specimens were below 6 × 10-7 mmol/cm2 . X-ray photoelectron spectroscopy revealed the passivation mainly by Ti- and Nb-oxides with traces of In-oxides as the dominating surface process. In vitro studies demonstrate a better human bone marrow stromal cells (hBMSC) activity on the beta-type alloys in comparison to CP-Ti (grade 2), which is mainly due to their high Nb content. At 24 h after seeding on (Ti-40Nb)-4In the metabolic activity of hBMSC was 1.5-fold higher and after 11 days, the tissue non-specific alkaline phosphatase activity was 1.8-fold higher relative to values for CP-Ti. Surface treatments, like chemical etching or plasma oxidation, change the surface topography and the thickness and composition of the oxide layers, but they are not effective in further improving the cell response. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1686-1697, 2018.
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Affiliation(s)
- Stefan Pilz
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany.,Institute of Materials Science, TU Dresden, 01062 Dresden, Germany
| | - Annett Gebert
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
| | - Andrea Voss
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
| | - Steffen Oswald
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
| | - Markus Göttlicher
- Institute of Physical Chemistry, Justus-Liebig-University of Giessen, 35392 Giessen, Germany
| | - Ute Hempel
- Carl Gustav Carus Faculty of Medicine, Institute of Physiological Chemistry, TU Dresden, 01307 Dresden, Germany
| | - Jürgen Eckert
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
| | - Marcus Rohnke
- Institute of Physical Chemistry, Justus-Liebig-University of Giessen, 35392 Giessen, Germany
| | - Jürgen Janek
- Institute of Physical Chemistry, Justus-Liebig-University of Giessen, 35392 Giessen, Germany
| | - Mariana Calin
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
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Simann M, Le Blanc S, Schneider V, Zehe V, Lüdemann M, Schütze N, Jakob F, Schilling T. Canonical FGFs Prevent Osteogenic Lineage Commitment and Differentiation of Human Bone Marrow Stromal Cells Via ERK1/2 Signaling. J Cell Biochem 2016; 118:263-275. [PMID: 27305863 DOI: 10.1002/jcb.25631] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 06/14/2016] [Indexed: 12/21/2022]
Abstract
Controlling the adipo-osteogenic lineage decision of trabecular human bone marrow stromal cells (hBMSCs) in favor of osteogenesis represents a promising approach for osteoporosis therapy and prevention. Previously, Fibroblast Growth Factor 1 (FGF1) and its subfamily member FGF2 were scored as leading candidates to exercise control over skeletal precursor commitment and lineage decision albeit literature results are highly inconsistent. We show here that FGF1 and 2 strongly prevent the osteogenic commitment and differentiation of hBMSCs. Mineralization of extracellular matrix (ECM) and mRNA expression of osteogenic marker genes Alkaline Phosphatase (ALP), Collagen 1A1 (COL1A1), and Integrin-Binding Sialoprotein (IBSP) were significantly reduced. Furthermore, master regulators of osteogenic commitment like Runt-Related Transcription Factor 2 (RUNX2) and Bone Morphogenetic Protein 4 (BMP4) were downregulated. When administered under adipogenic culture conditions, canonical FGFs did not support osteogenic marker expression. Moreover despite the presence of osteogenic differentiation factors, FGFs even disabled the pro-osteogenic lineage decision of pre-differentiated adipocytic cells. In contrast to FGF Receptor 2 (FGFR2), FGFR1 was stably expressed throughout osteogenic and adipogenic differentiation and FGF addition. Moreover, FGFR1 and Extracellular Signal-Regulated Kinases 1 and 2 (ERK1/2) were found to be responsible for underlying signal transduction using respective inhibitors. Taken together, we present new findings indicating that canonical FGFR-ERK1/2 signaling entrapped hBMSCs in a pre-committed state and arrested further maturation of committed precursors. Our results might aid in unraveling and controlling check points relevant for ageing-associated aberrant adipogenesis with consequences for the treatment of degenerative diseases such as osteoporosis and for skeletal tissue engineering strategies. J. Cell. Biochem. 118: 263-275, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Meike Simann
- Department of Orthopedics, Orthopedic Center for Musculoskeletal Research, University of Würzburg, Würzburg, Germany
| | - Solange Le Blanc
- Department of Orthopedics, Orthopedic Center for Musculoskeletal Research, University of Würzburg, Würzburg, Germany
| | - Verena Schneider
- Chair Tissue Engineering & Regenerative Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Viola Zehe
- Department of Orthopedics, Orthopedic Center for Musculoskeletal Research, University of Würzburg, Würzburg, Germany
| | - Martin Lüdemann
- Orthopedic Department König-Ludwig-Haus, Center for Musculoskeletal Research, University of Würzburg, Würzburg, Germany
| | - Norbert Schütze
- Department of Orthopedics, Orthopedic Center for Musculoskeletal Research, University of Würzburg, Würzburg, Germany
| | - Franz Jakob
- Department of Orthopedics, Orthopedic Center for Musculoskeletal Research, University of Würzburg, Würzburg, Germany
| | - Tatjana Schilling
- Department of Orthopedics, Orthopedic Center for Musculoskeletal Research, University of Würzburg, Würzburg, Germany
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14
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Jung YJ, Kim KC, Heo JY, Jing K, Lee KE, Hwang JS, Lim K, Jo DY, Ahn JP, Kim JM, Huh KM, Park JI. Induction of Angiogenesis by Matrigel Coating of VEGF-Loaded PEG/PCL-Based Hydrogel Scaffolds for hBMSC Transplantation. Mol Cells 2015; 38:663-8. [PMID: 26159216 PMCID: PMC4507034 DOI: 10.14348/molcells.2015.0142] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 06/10/2015] [Accepted: 06/12/2015] [Indexed: 01/12/2023] Open
Abstract
hBMSCs are multipotent cells that are useful for tissue regeneration to treat degenerative diseases and others for their differentiation ability into chondrocytes, osteoblasts, adipocytes, hepatocytes and neuronal cells. In this study, biodegradable elastic hydrogels consisting of hydrophilic poly(ethylene glycol) (PEG) and hydrophobic poly(ε-caprolactone) (PCL) scaffolds were evaluated for tissue engineering because of its biocompatibility and the ability to control the release of bioactive peptides. The primary cultured cells from human bone marrow are confirmed as hBMSC by immunohistochemical analysis. Mesenchymal stem cell markers (collagen type I, fibronectin, CD54, integrin1β, and Hu protein) were shown to be positive, while hematopoietic stem cell markers (CD14 and CD45) were shown to be negative. Three different hydrogel scaffolds with different block compositions (PEG:PCL=6:14 and 14:6 by weight) were fabricated using the salt leaching method. The hBMSCs were expanded, seeded on the scaffolds, and cultured up to 8 days under static conditions in Iscove's Modified Dulbecco's Media (IMDM). The growth of MSCs cultured on the hydrogel with PEG/PCL= 6/14 was faster than that of the others. In addition, the morphology of MSCs seemed to be normal and no cytotoxicity was found. The coating of the vascular endothelial growth factor (VEGF) containing scaffold with Matrigel slowed down the release of VEGF in vitro and promoted the angiogenesis when transplanted into BALB/c nude mice. These results suggest that hBMSCs can be supported by a biode gradable hydrogel scaffold for effective cell growth, and enhance the angiogenesis by Matrigel coating.
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Affiliation(s)
- Yeon Joo Jung
- Department of Pharmacology and Medical Research Center, Ewha Womans University School of Medicine, Seoul 158-710,
Korea
| | - Kyung-Chul Kim
- Department of Biochemistry, School of Medicine, Chungnam National University, Daejeon 301-747,
Korea
| | - Jun-Young Heo
- Department of Biochemistry, School of Medicine, Chungnam National University, Daejeon 301-747,
Korea
| | - Kaipeng Jing
- Department of Biochemistry, School of Medicine, Chungnam National University, Daejeon 301-747,
Korea
- Research Institute of Medical School, Chungnam National University, Daejeon 301-747,
Korea
| | - Kyung Eun Lee
- Department of Pharmacology and Medical Research Center, Ewha Womans University School of Medicine, Seoul 158-710,
Korea
| | - Jun Seok Hwang
- Department of Pharmacology and Medical Research Center, Ewha Womans University School of Medicine, Seoul 158-710,
Korea
| | - Kyu Lim
- Department of Biochemistry, School of Medicine, Chungnam National University, Daejeon 301-747,
Korea
| | - Deog-Yeon Jo
- Division of Hematology/Oncology Department of Internal Medicine, Chungnam National University, Daejeon 301-747,
Korea
| | - Jae Pyoung Ahn
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 136-791,
Korea
| | - Jin-Man Kim
- Department of Pathology, School of Medicine, Chungnam National University, Daejeon 301-747,
Korea
| | - Kang Moo Huh
- Department of Polymer Science and Engineering, Chungnam National University, Daejeon 305-764,
Korea
| | - Jong-Il Park
- Department of Biochemistry, School of Medicine, Chungnam National University, Daejeon 301-747,
Korea
- Research Institute of Medical School, Chungnam National University, Daejeon 301-747,
Korea
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15
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Tang H, Xiang Y, Jiang X, Ke Y, Xiao Z, Guo Y, Wang Q, Du M, Qin L, Zou Y, Cai Y, Chen Z, Xu R. Dual expression of hTERT and VEGF prolongs life span and enhances angiogenic ability of aged BMSCs. Biochem Biophys Res Commun 2013; 440:502-8. [PMID: 24055873 DOI: 10.1016/j.bbrc.2013.09.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 09/10/2013] [Indexed: 01/01/2023]
Abstract
Previous studies have confirmed the therapeutic effects of bone marrow stromal cells (BMSCs) transplantation on cerebral ischemia. However, the proliferative, differentiative, and homing capacity of BMSC from the elderly are significantly reduced, especially after several passages expansion in vitro. In this study, by introducing lentivirus-mediated hTERT and VEGF genes to modify human BMSCs from aged donors, we observed extended lifespan, promoted angiogenic capacity while less enhanced tumorigenicity of the genetically engineering BMSCs. These results therefore suggest that the modification of aged BMSCs by dual expression of hTERT and VEGF may be used for autologous cell replacement for ischemic cerebrovascular disease in elderly patients.
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Affiliation(s)
- Hao Tang
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; Department of Neurosurgery, Affiliated Bayi Brain Hospital, The Military General Hospital of Beijing PLA, Beijing, China
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