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Wei J, Xia X, Xiao S, Jin S, Zou Q, Zuo Y, Li Y, Li J. Sequential Dual-Biofactor Release from the Scaffold of Mesoporous HA Microspheres and PLGA Matrix for Boosting Endogenous Bone Regeneration. Adv Healthc Mater 2023; 12:e2300624. [PMID: 36938866 DOI: 10.1002/adhm.202300624] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Indexed: 03/21/2023]
Abstract
The combined design of scaffold structure and multi-biological factors is a prominent strategy to promote bone regeneration. Herein, a composite scaffold of mesoporous hydroxyapatite (HA) microspheres loaded with the bone morphogenetic protein-2 (BMP-2) and a poly(DL-lactic-co-glycolic acid) (PLGA) matrix is constructed by 3D printing. Furthermore, the chemokine stromal cell-derived factor-1α (SDF-1α) is adsorbed on a scaffold surface to achieve the sequential release of the dual-biofactors. The results indicate that the rapid release of SDF-1α chemokine on the scaffold surface effectively recruits bone marrow-derived mesenchymal stem cells (BMSCs) to the target defect area, whereas the long-term sustained release of BMP-2 from the HA microspheres in the degradable PLGA matrix successfully triggers the osteogenic differentiation in the recruited BMSCs, significantly promoting bone regeneration and reconstruction. In addition, these structures/biofactors specially combining scaffold exhibit significantly better biological performance than that of other combined scaffolds, including the bare HA/PLGA scaffold, the scaffold loaded with SDF-1α or BMP-2 biofactor alone, and the scaffold with surface SDF-1α and BMP-2 dual-biofactors. The utilization of mesoporous HA, the assembly method, and sequential release of the two biofactors in the 3D printed composite scaffold present a new method for future design of high-performance bone repairing scaffolds.
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Affiliation(s)
- Jiawei Wei
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, P. R. China
| | - Xue Xia
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, P. R. China
| | - Shiqi Xiao
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, P. R. China
| | - Shue Jin
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, P. R. China
| | - Qin Zou
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, P. R. China
| | - Yi Zuo
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, P. R. China
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, P. R. China
| | - Jidong Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, P. R. China
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2
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Egorikhina MN, Timofeeva LB, Linkova DD, Rubtsova YP, Bugrova ML, Charykova IN, Ryabkov MG, Kobyakova II, Farafontova EA, Aleynik DY. Biocompatibility Study of Hydrogel Biopolymer Scaffold with Encapsulated Mesenchymal Stem Cells. Polymers (Basel) 2023; 15:polym15061337. [PMID: 36987118 PMCID: PMC10052012 DOI: 10.3390/polym15061337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/21/2023] [Accepted: 02/27/2023] [Indexed: 03/30/2023] Open
Abstract
One of the key and actively developing areas of regenerative medicine is tissue-engineering. There is no doubt that the use of tissue-engineering products can have a significant impact on the efficiency of repair of damaged tissues and organs. However, before being used in clinical practice, tissue-engineering products require thorough preclinical studies to confirm their safety and efficacy, both with in vitro models and in experimental animals. This paper presents preclinical studies of a tissue-engineered construct, based on a hydrogel biopolymer scaffold carrier (consisting of blood plasma cryoprecipitate and collagen) with encapsulated mesenchymal stem cells, to evaluate its biocompatibility in vivo. The results were analyzed using histomorphology and transmission electron microscopy. It was shown that when implanted into animal (rat) tissues, the implants were completely replaced by connective tissue components. We also confirmed that no acute inflammation occurred in response to the scaffold implantation. The observed processes of cell recruitment to the scaffold from the surrounding tissues, the active formation of collagen fibers and the absence of acute inflammation testified that the regeneration process was ongoing in the implantation area. Thus, the presented tissue-engineered construct shows promise for becoming an effective tool for regenerative medicine in the future and may be used, in particular, to repair soft tissues.
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Affiliation(s)
- Marfa N Egorikhina
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Lidia B Timofeeva
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Daria D Linkova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Yulia P Rubtsova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Marina L Bugrova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Irina N Charykova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Maxim G Ryabkov
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Irina I Kobyakova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Ekaterina A Farafontova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
| | - Diana Y Aleynik
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia
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Raghav PK, Mann Z, Ahlawat S, Mohanty S. Mesenchymal stem cell-based nanoparticles and scaffolds in regenerative medicine. Eur J Pharmacol 2021; 918:174657. [PMID: 34871557 DOI: 10.1016/j.ejphar.2021.174657] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 11/05/2021] [Accepted: 11/24/2021] [Indexed: 12/20/2022]
Abstract
Mesenchymal stem cells (MSCs) are adult stem cells owing to their regenerative potential and multilineage potency. MSCs have wide-scale applications either in their native cellular form or in conjugation with specific biomaterials as nanocomposites. Majorly, these natural or synthetic biomaterials are being used in the form of metallic and non-metallic nanoparticles (NPs) to encapsulate MSCs within hydrogels like alginate or chitosan or drug cargo loading into MSCs. In contrast, nanofibers of polymer scaffolds such as polycaprolactone (PCL), poly-lactic-co-glycolic acid (PLGA), poly-L-lactic acid (PLLA), silk fibroin, collagen, chitosan, alginate, hyaluronic acid (HA), and cellulose are used to support or grow MSCs directly on it. These MSCs based nanotherapies have application in multiple domains of biomedicine including wound healing, bone and cartilage engineering, cardiac disorders, and neurological disorders. This study focused on current approaches of MSCs-based therapies and has been divided into two major sections. The first section elaborates on MSC-based nano-therapies and their plausible applications including exosome engineering and NPs encapsulation. The following section focuses on the various MSC-based scaffold approaches in tissue engineering. Conclusively, this review mainly focused on MSC-based nanocomposite's current approaches and compared their advantages and limitations for building effective regenerative medicines.
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Affiliation(s)
- Pawan Kumar Raghav
- Stem Cell Facility, DBT Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, New Delhi, 110029, India.
| | - Zoya Mann
- Stem Cell Facility, DBT Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, New Delhi, 110029, India.
| | - Swati Ahlawat
- Stem Cell Facility, DBT Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, New Delhi, 110029, India.
| | - Sujata Mohanty
- Stem Cell Facility, DBT Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, New Delhi, 110029, India.
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Min S, Cleveland D, Ko IK, Kim JH, Yang HJ, Atala A, Yoo JJ. Accelerating neovascularization and kidney tissue formation with a 3D vascular scaffold capturing native vascular structure. Acta Biomater 2021; 124:233-243. [PMID: 33524561 DOI: 10.1016/j.actbio.2021.01.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 01/11/2021] [Accepted: 01/26/2021] [Indexed: 01/03/2023]
Abstract
Establishing an adequate vascularization of three-dimensional (3D) bioengineered tissues remains a critical challenge. We previously fabricated a vascular scaffold using the vascular corrosion casting technique, which provides a similar 3D geometry of native kidney vasculature. In this study, we functionalized the collagen vascular scaffold with a controlled release of vascular endothelial growth factor (VEGF vascular scaffold) to further promote vascularization. The VEGF vascular scaffold showed improved angiogenic capability in 2-dimensional (2D) and 3D in vitro settings. Implantation of the VEGF vascular scaffold seeded with human renal cells into a rat kidney demonstrated enhanced implant vascularization and reduced apoptosis of implanted human renal cells. Hybrid renal tubule-like structures composed of implanted human and migrated host renal cells were formed. This work highlights the critical role of early vascularization of the geometrically mimetic vascular scaffold using the VEGF incorporated vascular scaffold in reducing apoptosis of implanted cells as well as the formation of renal tissue structures.
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Affiliation(s)
- Sangil Min
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, NC, USA; Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - David Cleveland
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, NC, USA
| | - In Kap Ko
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, NC, USA
| | - Ji Hyun Kim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, NC, USA
| | - Hee Jo Yang
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, NC, USA; Department of Urology, Soonchunhyang University College of Medicine, Cheonan, South Korea
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, NC, USA
| | - James J Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, NC, USA.
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Rak Kwon D, Jung S, Jang J, Park GY, Suk Moon Y, Lee SC. A 3-Dimensional Bioprinted Scaffold With Human Umbilical Cord Blood-Mesenchymal Stem Cells Improves Regeneration of Chronic Full-Thickness Rotator Cuff Tear in a Rabbit Model. Am J Sports Med 2020; 48:947-958. [PMID: 32167836 DOI: 10.1177/0363546520904022] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Chronic full-thickness rotator cuff tears (FTRCTs) represent a major clinical concern because they show highly compromised healing capacity. PURPOSE To evaluate the efficacy of using a 3-dimensional (3D) bioprinted scaffold with human umbilical cord blood (hUCB)-mesenchymal stem cells (MSCs) for regeneration of chronic FTRCTs in a rabbit model. STUDY DESIGN Controlled laboratory study. METHODS A total of 32 rabbits were randomly assigned to 4 treatment groups (n = 8 per group) at 6 weeks after a 5-mm FTRCT was created on the supraspinatus tendon. Group 1 (G1-SAL) was transplanted with normal saline. Group 2 (G2-MSC) was transplanted with hUCB-MSCs (0.2 mL, 1 × 106) into FTRCTs. Group 3 (G3-3D) was transplanted with a 3D bioprinted construct without MSCs, and group 4 (G4-3D+MSC) was transplanted with a 3D bioprinted construct containing hUCB-MSCs (0.2 mL, 1 × 106 cells) into FTRCTs. All 32 rabbits were euthanized at 4 weeks after treatment. Examination of gross morphologic changes and histologic results was performed on all rabbits after sacrifice. Motion analysis was also performed before and after treatment. RESULTS In G4-3D+MSC, newly regenerated collagen type 1 fibers, walking distance, fast walking time, and mean walking speed were greater than those in G2-MSC based on histochemical and motion analyses. In addition, when compared with G3-3D, G4-3D+MSC showed more prominent regenerated tendon fibers and better parameters of motion analysis. However, there was no significant difference in gross tear size among G2-MSC, G3-3D, and G4-3D+MSC, although these groups showed significant decreases in tear size as compared with the control group (G1-SAL). CONCLUSION Findings of this study show that a tissue engineering strategy based on a 3D bioprinted scaffold filled with hUCB-MSCs can improve the microenvironment for regenerative processes of FTRCT without any surgical repair. CLINICAL RELEVANCE In the case of rotator cuff tear, the cell loss of the external MSCs can be increased by exposure to synovial fluid. Therefore, a 3D bioprinted scaffold in combination with MSCs without surgical repair may be effective in increasing cell retention in FTRCT.
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Affiliation(s)
- Dong Rak Kwon
- Department of Rehabilitation Medicine, School of Medicine, Catholic University of Daegu, Daegu, Republic of Korea
| | - Seungman Jung
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Jinah Jang
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, Republic of Korea.,Department of Creative IT Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea.,Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Gi-Young Park
- Department of Rehabilitation Medicine, School of Medicine, Catholic University of Daegu, Daegu, Republic of Korea
| | - Yong Suk Moon
- Department of Anatomy, School of Medicine, Catholic University of Daegu, Daegu, Republic of Korea
| | - Sang Chul Lee
- Department and Research Institute of Rehabilitation Medicine, College of Medicine, Yonsei University, Seoul, Republic of Korea
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Mu C, Hu Y, Hou Y, Li M, He Y, Shen X, Tao B, Lin C, Chen M, Chen M, Cai K. Substance P-embedded multilayer on titanium substrates promotes local osseointegration via MSC recruitment. J Mater Chem B 2020; 8:1212-1222. [PMID: 31950127 DOI: 10.1039/c9tb01124b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, the chemokine substance P (SP) was inserted into multilayered systems on titanium (Ti)-based substrates for endogenous mesenchymal stem cell (MSC) recruitment to facilitate bone healing. The multilayer was constructed with cationic chitosan (Chi), SP and anionic gelatin (Gel) via a spin-coater-assisted layer-by-layer (LBL) approach. The characterization results demonstrated that the multilayer system was successfully constructed and was capable of continuously releasing SP for almost 2 weeks. We further confirmed that MSCs grown on SP-modified Ti-based substrates showed improved migration capabilities as well as enhanced secretion of matrix metalloproteinases (MMP2, MMP9), rather than enhanced MSC proliferation and differentiation in vitro. In the CD29+/CD90+ double immunofluorescence assay, the Ti/LBL-SP group showed the highest number of MSCs migrating to the peri-implant area after implantation. Consistently, the Ti/LBL-SP implants also significantly enhanced new bone formation according to the results of micro-CT scanning analysis, H&E staining, Masson's trichrome staining and immunohistochemical staining. The obtained results reveal that SP-modified Ti-based substrates were beneficial for bone formation via recruiting endogenous MSCs.
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Affiliation(s)
- Caiyun Mu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Yan Hu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Yanhua Hou
- Chongqing Engineering Research Centre of Pharmaceutical Sciences, Chongqing Medical and Pharmaceutical College, Chongqing 401331, P. R. China
| | - Menghuan Li
- School of Life Science, Chongqing University, Chongqing 400044, China
| | - Ye He
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Xinkun Shen
- School of Life Science, Chongqing University, Chongqing 400044, China
| | - Bailong Tao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Chuanchuan Lin
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Maowen Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Maohua Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.
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7
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Kim D, Chung JJ, Jung Y, Kim SH. The effect of Substance P/Heparin conjugated PLCL polymer coating of bioinert ePTFE vascular grafts on the recruitment of both ECs and SMCs for accelerated regeneration. Sci Rep 2019; 9:17083. [PMID: 31745143 PMCID: PMC6863833 DOI: 10.1038/s41598-019-53514-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 10/24/2019] [Indexed: 12/11/2022] Open
Abstract
Artificial vascular grafts consisting of ePTFE have been mainly used in clinics for the treatment of cardiovascular disease. However, artificial grafts can become clogged after a long time due to thrombosis, as graft maturation by endothelialization is limited. The strategy introduced in this study is to induce graft remodeling through interaction between the bioinert graft and the body. The Substance P (SP) and heparin were covalently conjugated with PLCL, an elastic biocompatible copolymer and the Substance P-conjugated PLCL (SP-PLCL) and/or heparin-conjugated PLCL (Hep-PLCL) were vacuum-coated onto ePTFE vascular grafts. To assess the effectiveness of the coating, coated samples were evaluated by implanting them subcutaneously into SD-Rats. Coatings allow grafts to be remodeled by creating a microenvironment where cells can grow by infiltrating into the grafts while also greatly enhancing angiogenesis. In particular, a double coating of Hep-PLCL and SP-PLCL (Hep/SP-PLCL) at four weeks showed markedly improved vascular remodeling through the recruitment of mesenchymal stem cells (MSCs), vascular cells (ECs, SMCs) and M2 macrophages. Based on these results, it is expected that when the Hep/SP-PLCL-coated ePTFE vascular grafts are implanted in situ, long-term patency will be assured due to the appropriate formation of an endothelial layer and smooth muscle cells in the grafts like native vessels.
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Affiliation(s)
- Donghak Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Justin J Chung
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Youngmee Jung
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Biomedical Engineering, Korea University of Science and Technology (UST), Daejeon, 305-350, Republic of Korea
| | - Soo Hyun Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.
- Department of Biomedical Engineering, Korea University of Science and Technology (UST), Daejeon, 305-350, Republic of Korea.
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8
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Kidney regeneration approaches for translation. World J Urol 2019; 38:2075-2079. [PMID: 31696256 DOI: 10.1007/s00345-019-02999-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 10/24/2019] [Indexed: 01/11/2023] Open
Abstract
The increase in the incidence of chronic kidney diseases that progress to end-stage renal disease has become a significant health problem worldwide. While dialysis can maintain and prolong survival, the only definitive treatment that can restore renal function is transplantation. Unfortunately, many of these patients die waiting for transplantable kidneys due to the severe shortage of donor organs. Tissue engineering and regenerative medicine approaches have been applied in recent years to develop viable therapies that could provide solutions to these patients. Cell-based and cell-free approaches have been proposed to address the challenges associated with chronic kidney diseases. Strategies and progress toward developing alternative therapeutic options will be reviewed.
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Park HJ, Kim S, Jeon EJ, Song IT, Lee H, Son Y, Hong HS, Cho SW. PEGylated substance P augments therapeutic angiogenesis in diabetic critical limb ischemia. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.05.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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10
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Lee SJ, Wang HJ, Kim TH, Choi JS, Kulkarni G, Jackson JD, Atala A, Yoo JJ. In Situ Tissue Regeneration of Renal Tissue Induced by Collagen Hydrogel Injection. Stem Cells Transl Med 2019; 7:241-250. [PMID: 29380564 PMCID: PMC5788870 DOI: 10.1002/sctm.16-0361] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/17/2017] [Indexed: 12/12/2022] Open
Abstract
Host stem/progenitor cells can be mobilized and recruited to a target location using biomaterials, and these cells may be used for in situ tissue regeneration. The objective of this study was to investigate whether host biologic resources could be used to regenerate renal tissue in situ. Collagen hydrogel was injected into the kidneys of normal mice, and rat kidneys that had sustained ischemia/reperfusion injury. After injection, the kidneys of both animal models were examined up to 4 weeks for host tissue response. The infiltrating host cells present within the injection regions expressed renal stem/progenitor cell markers, PAX‐2, CD24, and CD133, as well as mesenchymal stem cell marker, CD44. The regenerated renal structures were identified by immunohistochemistry for renal cell specific markers, including synaptopodin and CD31 for glomeruli and cytokeratin and neprilysin for tubules. Quantitatively, the number of glomeruli found in the injected regions was significantly higher when compared to normal regions of renal cortex. This phenomenon occurred in normal and ischemic injured kidneys. Furthermore, the renal function after ischemia/reperfusion injury was recovered after collagen hydrogel injection. These results demonstrate that introduction of biomaterials into the kidney is able to facilitate the regeneration of glomerular and tubular structures in normal and injured kidneys. Such an approach has the potential to become a simple and effective treatment for patients with renal failure. Stem Cells Translational Medicine2018;7:241–250
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Affiliation(s)
- Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Hung-Jen Wang
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA.,Department of Urology, Chang Gung Memorial Hospital, Kaohsiung Medical Center, Chang Gung University Collagen of Medicine, Kaohsiung City, Taiwan, Republic of China
| | - Tae-Hyoung Kim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA.,Department of Urology, Chung-Ang University Hospital, Seoul, South Korea
| | - Jin San Choi
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Gauri Kulkarni
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - John D Jackson
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - James J Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
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11
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Cho E, Kim YY, Noh K, Ku S. A new possibility in fertility preservation: The artificial ovary. J Tissue Eng Regen Med 2019; 13:1294-1315. [DOI: 10.1002/term.2870] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/02/2019] [Accepted: 04/22/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Eun Cho
- College of MedicineSeoul National University Seoul South Korea
| | - Yoon Young Kim
- College of MedicineSeoul National University Seoul South Korea
- Department of Obstetrics and GynecologySeoul National University Hospital Seoul South Korea
| | - Kevin Noh
- College of Human EcologyCornell University Ithaca New York USA
| | - Seung‐Yup Ku
- College of MedicineSeoul National University Seoul South Korea
- Department of Obstetrics and GynecologySeoul National University Hospital Seoul South Korea
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12
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Yim HE, Kim DS, Chung HC, Shing B, Moon KH, George SK, Kim MW, Atala Z, Kim JH, Ko IK, Yoo JJ. Controlled Delivery of Stem Cell-Derived Trophic Factors Accelerates Kidney Repair After Renal Ischemia-Reperfusion Injury in Rats. Stem Cells Transl Med 2019; 8:959-970. [PMID: 31144785 PMCID: PMC6708069 DOI: 10.1002/sctm.18-0222] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 03/04/2019] [Indexed: 12/20/2022] Open
Abstract
Renal disease is a worldwide health issue. Besides transplantation, current therapies revolve around dialysis, which only delays disease progression but cannot replace other renal functions, such as synthesizing erythropoietin. To address these limitations, cell‐based approaches have been proposed to restore damaged kidneys as an alternative to current therapies. Recent studies have shown that stem cell‐derived secretomes can enhance tissue regeneration. However, many growth factors undergo rapid degradation when they are injected into the body in a soluble form. Efficient delivery and controlled release of secreting factors at the sites of injury would improve the efficacy in tissue regeneration. Herein, we developed a gel‐based delivery system for controlled delivery of trophic factors in the conditioned medium (CM) secreted from human placental stem cells (HPSCs) and evaluated the effect of trophic factors on renal regeneration. CM treatment significantly enhanced cell proliferation and survival in vitro. Platelet‐rich plasma (PRP) was used as a delivery vehicle for CM. Analysis of the release kinetics demonstrated that CM delivery through the PRP gel resulted in a controlled release of the factors both in vitro and in vivo. In an acute kidney injury model in rats, functional and structural analysis showed that CM delivery using the PRP gel system into the injured kidney minimized renal tissue damage, leading to a more rapid functional recovery when compared with saline, CM, or vehicle only injection groups. These results suggest that controlled delivery of HPSC‐derived trophic factors may provide efficient repair of renal tissue injury. stem cells translational medicine2019;8:959&970
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Affiliation(s)
- Hyung Eun Yim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA.,Department of Pediatrics, College of Medicine, Korea University, Seoul, Korea
| | - Doo Sang Kim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA.,Department of Urology, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hyun Chul Chung
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA.,Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Brian Shing
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - Kyung Hyun Moon
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA.,Department of Urology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Sunil K George
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - Michael W Kim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - Zachary Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - Ji Hyun Kim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - In Kap Ko
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - James J Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
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13
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Abstract
Kidney diseases including acute kidney injury and chronic kidney disease are among the largest health issues worldwide. Dialysis and kidney transplantation can replace a significant portion of renal function, however these treatments still have limitations. To overcome these shortcomings, a variety of innovative efforts have been introduced, including cell-based therapies. During the past decades, advances have been made in the stem cell and developmental biology, and tissue engineering. As part of such efforts, studies on renal cell therapy and artificial kidney developments have been conducted, and multiple therapeutic interventions have shown promise in the pre-clinical and clinical settings. More recently, therapeutic cell-secreting secretomes have emerged as a potential alternative to cell-based approaches. This approach involves the use of renotropic factors, such as growth factors and cytokines, that are produced by cells and these factors have shown effectiveness in facilitating kidney function recovery. This review focuses on the renotropic functions of bioactive compounds that provide protective and regenerative effects for kidney tissue repair, based on the available data in the literature.
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Affiliation(s)
- Kang Su Cho
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
- Department of Urology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - In Kap Ko
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - James J Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA.
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14
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Shafiq M, Wang L, Zhi D, Zhang Q, Wang K, Wang L, Kim DH, Kong D, Kim SH. In situ blood vessel regeneration using neuropeptide substance P-conjugated small-diameter vascular grafts. J Biomed Mater Res B Appl Biomater 2018; 107:1669-1683. [PMID: 30315717 DOI: 10.1002/jbm.b.34260] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 09/18/2018] [Accepted: 09/23/2018] [Indexed: 12/16/2022]
Abstract
In situ blood vessel regeneration through host stem/progenitor cell mobilization may hold great promise for vascular reconstruction. Neuropeptide substance P (SP) has been shown to accelerate tissue repair by endogenous cell mobilization and recruitment. This study was aimed to evaluate the vascular regeneration potential of SP and heparin co-tethered vascular grafts. Polycaprolactone (PCL), PCL/SP-conjugated poly(L-lactide-co-ε-caprolactone) (PLCL-SP) (SP), and PCL/PLCL-SP/heparin-conjugated PLCL (Hep/SP) vascular grafts were implanted as rat abdominal aorta substitutes for up to 2 weeks and 4 weeks. Ex vivo results delineate that heparin can improve the hemocompatibility and SP can recruit mesenchymal stem cells. Histological and immunohistochemical staining reveal higher cellular infiltration and homogeneous cell distribution in SP and Hep/SP grafts than that of the control grafts. At 4 weeks, SP and Hep/SP grafts show the presence of cobblestone-like cells on the luminal side, whereas the surface of PCL grafts remains bare. Immunoflourescence staining using von Willibrand factor (vWF) antibody shows improved endothelialization in SP and Hep/SP grafts compared with the PCL grafts. SP and Hep/SP grafts also exhibit more numbers of α-smooth muscle actin-positive cells and laminin+ blood vessels than that of the control group. Evaluation of inflammatory response reveals that three groups did not differ in terms of the numbers of CD68+ macrophages, whereas SP and Hep/SP grafts show higher numbers of CD206+ macrophages. These results indicate that SP can induce endogenous tissue regeneration in cell-free grafts, which may be of great interest for regenerative medicine and tissue engineering applications. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1669-1683, 2019.
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Affiliation(s)
- Muhammad Shafiq
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.,Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea.,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China.,Center for Tissue Engineering & Regenerative Medicine, Department of Chemistry, Pakistan Institute of Engineering & Applied Sciences (PIEAS), Nilore, Islamabad, 45650, Pakistan
| | - Lina Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Dengke Zhi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Qiuying Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Kai Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Lianyong Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Dong-Hwee Kim
- Department of Nano-Bio-Information Technology (NBIT), KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 136-701, Republic of Korea
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Soo Hyun Kim
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.,Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea.,Department of Nano-Bio-Information Technology (NBIT), KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 136-701, Republic of Korea
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15
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Shafiq M, Zhang Y, Zhu D, Zhao Z, Kim DH, Kim SH, Kong D. In situ cardiac regeneration by using neuropeptide substance P and IGF-1C peptide eluting heart patches. Regen Biomater 2018; 5:303-316. [PMID: 30338128 PMCID: PMC6184517 DOI: 10.1093/rb/rby021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 06/26/2018] [Accepted: 07/03/2018] [Indexed: 12/23/2022] Open
Abstract
Cardiovascular diseases cause huge socio-economic burden worldwide. Although a mammalian myocardium has its own limited healing capability, scaffold materials capable of releasing stem cell recruiting/engrafting factors may facilitate the regeneration of the infarcted myocardium. The aim of this research was to develop cardiac patches capable of simultaneously eluting substance P (SP) and insulin-like growth factor-1C (IGF-1C) peptide. Polycaprolactone/collagen type 1-based patches with or without SP and IGF-1C peptide were fabricated by co-electrospinning, which exhibited nanofibrous morphology. SP and IGF-1C/SP patches recruited significantly higher numbers of bone marrow-mesenchymal stem cells than that of the negative control and patch-only groups in vitro. The developed patches were transplanted in an infarcted myocardium for up to 14 days. Mice underwent left anterior descending artery ligation and received one of the following treatments: (i) sham, (ii) saline, (iii) patch-only, (iv) IGF-1C patch, (v) SP patch and (vi) IGF-1C/SP patch. SP and IGF-1C/SP patch-treated groups exhibited better heart function and attenuated adverse cardiac remodeling than that of the saline, patch-only and individual peptide containing cardiac patches. SP patch and IGF-1C/SP patch-treated groups also showed higher numbers of CD31-positive vessels and isolectin B4-positive capillaries than that of other groups. IGF-1C/SP-treated group also showed thicker left ventricular wall in comparison to the saline and patch-only groups. Moreover, IGF-1C/SP patches recruited significantly higher numbers of CD29-positive cells and showed less numbers of Tunel-positive cells compared with the other groups. These data suggest that SP and IGF-1C peptides may act synergistically for in situ tissue repair.
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Affiliation(s)
- Muhammad Shafiq
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, Republic of Korea
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin, China
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Cheongryang, Seoul, Republic of Korea
- Department of Chemistry, Center for Tissue Engineering & Regenerative Medicine, Pakistan Institute of Engineering & Applied Sciences (PIEAS), Nilore, Islamabad, Pakistan
| | - Yue Zhang
- Department of Physiology & Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Dashuai Zhu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin, China
| | - Zongxian Zhao
- Department of Physiology & Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Dong-Hwee Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Soo Hyun Kim
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, Republic of Korea
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Cheongryang, Seoul, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin, China
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16
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Cell-Free Strategies for Repair and Regeneration of Meniscus Injuries through the Recruitment of Endogenous Stem/Progenitor Cells. Stem Cells Int 2018; 2018:5310471. [PMID: 30123286 PMCID: PMC6079391 DOI: 10.1155/2018/5310471] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/24/2018] [Indexed: 12/25/2022] Open
Abstract
The meniscus plays a vital role in protecting the articular cartilage of the knee joint. The inner two-thirds of the meniscus are avascular, and injuries to this region often fail to heal without intervention. The use of tissue engineering and regenerative medicine techniques may offer novel and effective approaches to repairing meniscal injuries. Meniscal tissue engineering and regenerative medicine typically use one of two techniques, cell-based or cell-free. While numerous cell-based strategies have been applied to repair and regenerate meniscal defects, these techniques possess certain limitations including cellular contamination and an increased risk of disease transmission. Cell-free strategies attempt to repair and regenerate the injured tissues by recruiting endogenous stem/progenitor cells. Cell-free strategies avoid several of the disadvantages of cell-based techniques and, therefore, may have a wider clinical application. This review first compares cell-based to cell-free techniques. Next, it summarizes potential sources for endogenous stem/progenitor cells. Finally, it discusses important recruitment factors for meniscal repair and regeneration. In conclusion, cell-free techniques, which focus on the recruitment of endogenous stem and progenitor cells, are growing in efficacy and may play a critical role in the future of meniscal repair and regeneration.
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17
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Shafiq M, Zhang Q, Zhi D, Wang K, Kong D, Kim DH, Kim SH. In Situ Blood Vessel Regeneration Using SP (Substance P) and SDF (Stromal Cell-Derived Factor)-1α Peptide Eluting Vascular Grafts. Arterioscler Thromb Vasc Biol 2018; 38:e117-e134. [PMID: 29853570 PMCID: PMC6039427 DOI: 10.1161/atvbaha.118.310934] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 05/16/2018] [Indexed: 01/22/2023]
Abstract
OBJECTIVE The objective of this study was to develop small-diameter vascular grafts capable of eluting SDF (stromal cell-derived factor)-1α-derived peptide and SP (substance P) for in situ vascular regeneration. APPROACH AND RESULTS Polycaprolactone (PCL)/collagen grafts containing SP or SDF-1α-derived peptide were fabricated by electrospinning. SP and SDF-1α peptide-loaded grafts recruited significantly higher numbers of mesenchymal stem cells than that of the control group. The in vivo potential of PCL/collagen, SDF-1, and SP grafts was assessed by implanting them in a rat abdominal aorta for up to 4 weeks. All grafts remained patent as observed using color Doppler and stereomicroscope. Host cells infiltrated into the graft wall and the neointima was formed in peptides-eluting grafts. The lumen of the SP grafts was covered by the endothelial cells with cobblestone-like morphology, which were elongated in the direction of the blood flow, as discerned using scanning electron microscopy. Moreover, SDF-1α and SP grafts led to the formation of a confluent endothelium as evaluated using immunofluorescence staining with von Willebrand factor antibody. SP and SDF-1α grafts also promoted smooth muscle cell regeneration, endogenous stem cell recruitment, and blood vessel formation, which was the most prominent in the SP grafts. Evaluation of inflammatory response showed that 3 groups did not significantly differ in terms of the numbers of proinflammatory macrophages, whereas SP grafts showed significantly higher numbers of proremodeling macrophages than that of the control and SDF-1α grafts. CONCLUSIONS SDF-1α and SP grafts can be potential candidates for in situ vascular regeneration and are worthy for future investigations.
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MESH Headings
- Angiogenesis Inducing Agents/chemistry
- Angiogenesis Inducing Agents/pharmacology
- Animals
- Aorta, Abdominal/diagnostic imaging
- Aorta, Abdominal/pathology
- Aorta, Abdominal/physiopathology
- Aorta, Abdominal/surgery
- Blood Vessel Prosthesis
- Blood Vessel Prosthesis Implantation/instrumentation
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Cells, Cultured
- Chemokine CXCL12/chemistry
- Chemokine CXCL12/pharmacology
- Coated Materials, Biocompatible
- Collagen Type I/chemistry
- Humans
- Male
- Mesenchymal Stem Cells/drug effects
- Neointima
- Neovascularization, Physiologic/drug effects
- Peptide Fragments/chemistry
- Peptide Fragments/pharmacology
- Polyesters/chemistry
- Prosthesis Design
- Rats, Sprague-Dawley
- Substance P/chemistry
- Substance P/pharmacology
- Time Factors
- Ultrasonography, Doppler, Color
- Vascular Patency
- Vascular Remodeling
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Affiliation(s)
- Muhammad Shafiq
- From the Department of Biomedical Engineering, Korea University of Science and Technology, Daejeon (M.S., S.H.K.)
- Center for Biomaterials, Biomedical Research Institute, Department of Biomedical Engineering, Korea Institute of Science and Technology, Seoul, Republic of Korea (M.S., S.H.K.)
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Department of Biochemistry and Molecular Biology, Nankai University, China (M.S., Q.Z., D.Z., K.W., D.K.)
| | - Qiuying Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Department of Biochemistry and Molecular Biology, Nankai University, China (M.S., Q.Z., D.Z., K.W., D.K.)
| | - Dengke Zhi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Department of Biochemistry and Molecular Biology, Nankai University, China (M.S., Q.Z., D.Z., K.W., D.K.)
| | - Kai Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Department of Biochemistry and Molecular Biology, Nankai University, China (M.S., Q.Z., D.Z., K.W., D.K.)
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Department of Biochemistry and Molecular Biology, Nankai University, China (M.S., Q.Z., D.Z., K.W., D.K.)
| | - Dong-Hwee Kim
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, China (D.K.)
- Department of Nano-Bio-Information Technology (NBIT), KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul (D.-H.K., S.H.K.)
| | - Soo Hyun Kim
- From the Department of Biomedical Engineering, Korea University of Science and Technology, Daejeon (M.S., S.H.K.)
- Center for Biomaterials, Biomedical Research Institute, Department of Biomedical Engineering, Korea Institute of Science and Technology, Seoul, Republic of Korea (M.S., S.H.K.)
- Department of Nano-Bio-Information Technology (NBIT), KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul (D.-H.K., S.H.K.)
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18
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Use of Self-Assembling Peptides to Enhance Stem Cell Function for Therapeutic Angiogenesis. Stem Cells Int 2018; 2018:4162075. [PMID: 30008751 PMCID: PMC6020535 DOI: 10.1155/2018/4162075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/21/2018] [Indexed: 12/12/2022] Open
Abstract
The use of nanomaterials for biomedical applications has become a promising field in regenerative medicine. Self-assembling peptides (SAPs) have been proposed as a good candidate because they are able to self-assemble into stable hydrogels and interact with cells or molecules when combined together. This in turn can lead to the improved survival or action of cells or molecules to obtain the desired effects. In this study, we investigated whether the combination of mesenchymal stem cells (MSCs) with SAPs could improve angiogenesis in ischemic hindlimbs of rats compared to MSC or SAP treatment alone. The combination of MSCs and SAPs showed an overall higher expression of angiogenesis markers on fluorescent immunohistochemical analysis and a lower degree of fibrosis and cell apoptosis, which in turn led to an overall tendency for improved perfusion of the ischemic hindlimbs. Finally, SAPs also showed the ability to recruit endogenous host MSCs into the site of action, especially when modified to incorporate substance P as a functional motif, which when injected with exogenous MSCs, allowed for the dual presence of MSCs at the site of action. Overall, these results suggest that SAPs can be applied with stem cells to potentiate angiogenesis, with potential therapeutic application in vascular diseases.
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19
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Zhang H, Zheng X, Ahmed W, Yao Y, Bai J, Chen Y, Gao C. Design and Applications of Cell-Selective Surfaces and Interfaces. Biomacromolecules 2018; 19:1746-1763. [PMID: 29665330 DOI: 10.1021/acs.biomac.8b00264] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Tissue regeneration involves versatile types of cells. The accumulation and disorganized behaviors of undesired cells impair the natural healing process, leading to uncontrolled immune response, restenosis, and/or fibrosis. Cell-selective surfaces and interfaces can have specific and positive effects on desired types of cells, allowing tissue regeneration with restored structures and functions. This review outlines the importance of surfaces and interfaces of biomaterials with cell-selective properties. The chemical and biological cues including peptides, antibodies, and other molecules, physical cues such as topography and elasticity, and physiological cues referring mainly to interactions between cells-cells and cell-chemokines or cytokines are effective modulators for achieving cell selectivity upon being applied into the design of biomaterials. Cell-selective biomaterials have also shown practical significance in tissue regeneration, in particular for endothelialization, nerve regeneration, capture of stem cells, and regeneration of tissues of multiple structures and functions.
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Affiliation(s)
- Haolan Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Xiaowen Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Wajiha Ahmed
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Yuejun Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Jun Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Yicheng Chen
- Department of Urology, Sir Run-Run Shaw Hospital, College of Medicine , Zhejiang University , Hangzhou 310016 , China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
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20
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Kim JE, Lee JH, Kim SH, Jung Y. Skin Regeneration with Self-Assembled Peptide Hydrogels Conjugated with Substance P in a Diabetic Rat Model. Tissue Eng Part A 2018; 24:21-33. [DOI: 10.1089/ten.tea.2016.0517] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Ji Eun Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Republic of Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Jung Hwa Lee
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Republic of Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Soo Hyun Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Republic of Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
- Department of Biomedical Engineering, University of Science and Technology (UST), Seoul, Republic of Korea
| | - Youngmee Jung
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
- Department of Biomedical Engineering, University of Science and Technology (UST), Seoul, Republic of Korea
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21
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Li X, He X, Yin Y, Wu R, Tian B, Chen F. Administration of signalling molecules dictates stem cell homing for in situ regeneration. J Cell Mol Med 2017; 21:3162-3177. [PMID: 28767189 PMCID: PMC5706509 DOI: 10.1111/jcmm.13286] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Accepted: 05/29/2017] [Indexed: 12/13/2022] Open
Abstract
Ex vivo-expanded stem cells have long been a cornerstone of biotherapeutics and have attracted increasing attention for treating intractable diseases and improving tissue regeneration. However, using exogenous cellular materials to develop restorative treatments for large numbers of patients has become a major concern for both economic and safety reasons. Advances in cell biological research over the past two decades have expanded the potential for using endogenous stem cells during wound healing processes, and in particular, recent insight into stem cell movement and homing has prompted regenerative research and therapy based on recruiting endogenous cells. Inspired by the natural healing process, artificial administration of specific chemokines as signals systemically or at the injury site, typically using biomaterials as vehicles, is a state-of-the-art strategy that potentiates stem cell homing and recreates an anti-inflammatory and immunomodulatory microenvironment to enhance in situ tissue regeneration. However, pharmacologically coaxing endogenous stem cells to act as therapeutics in the field of biomedicine remains in the early stages; its efficacy is limited by the lack of innovative methodologies for chemokine presentation and release. This review describes how to direct the homing of endogenous stem cells via the administration of specific signals, with a particular emphasis on targeted signalling molecules that regulate this homing process, to enhance in situ tissue regeneration. We also provide an outlook on and critical considerations for future investigations to enhance stem cell recruitment and harness the reparative potential of these recruited cells as a clinically relevant cell therapy.
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Affiliation(s)
- Xuan Li
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral DiseasesDepartment of PeriodontologySchool of StomatologyFourth Military Medical UniversityXi'anChina
| | - Xiao‐Tao He
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral DiseasesDepartment of PeriodontologySchool of StomatologyFourth Military Medical UniversityXi'anChina
| | - Yuan Yin
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral DiseasesDepartment of PeriodontologySchool of StomatologyFourth Military Medical UniversityXi'anChina
| | - Rui‐Xin Wu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral DiseasesDepartment of PeriodontologySchool of StomatologyFourth Military Medical UniversityXi'anChina
| | - Bei‐Min Tian
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral DiseasesDepartment of PeriodontologySchool of StomatologyFourth Military Medical UniversityXi'anChina
| | - Fa‐Ming Chen
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral DiseasesDepartment of PeriodontologySchool of StomatologyFourth Military Medical UniversityXi'anChina
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22
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Caires HR, Esteves T, Quelhas P, Barbosa MA, Navarro M, Almeida CR. Macrophage interactions with polylactic acid and chitosan scaffolds lead to improved recruitment of human mesenchymal stem/stromal cells: a comprehensive study with different immune cells. J R Soc Interface 2017; 13:rsif.2016.0570. [PMID: 27628173 DOI: 10.1098/rsif.2016.0570] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 08/23/2016] [Indexed: 01/07/2023] Open
Abstract
Despite the importance of immune cell-biomaterial interactions for the regenerative outcome, few studies have investigated how distinct three-dimensional biomaterials modulate the immune cell-mediated mesenchymal stem/stromal cells (MSC) recruitment and function. Thus, this work compares the response of varied primary human immune cell populations triggered by different model scaffolds and describes its functional consequence on recruitment and motility of bone marrow MSC. It was found that polylactic acid (PLA) and chitosan scaffolds lead to an increase in the metabolic activity of macrophages but not of peripheral blood mononuclear cells (PBMC), natural killer (NK) cells or monocytes. PBMC and NK cells increase their cell number in PLA scaffolds and express a secretion profile that does not promote MSC recruitment. Importantly, chitosan increases IL-8, MIP-1, MCP-1 and RANTES secretion by macrophages while PLA stimulates IL-6, IL-8 and MCP-1 production, all chemokines that can lead to MSC recruitment. This secretion profile of macrophages in contact with biomaterials correlates with the highest MSC invasion. Furthermore, macrophages enhance stem cell motility within chitosan scaffolds by 44% but not in PLA scaffolds. Thus, macrophages are the cells that in contact with engineered biomaterials become activated to secrete bioactive molecules that stimulate MSC recruitment.
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Affiliation(s)
- Hugo R Caires
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal INEB-Instituto de Engenharia Biomédica, Porto, Portugal ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Tiago Esteves
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal INEB-Instituto de Engenharia Biomédica, Porto, Portugal Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
| | - Pedro Quelhas
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal INEB-Instituto de Engenharia Biomédica, Porto, Portugal
| | - Mário A Barbosa
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal INEB-Instituto de Engenharia Biomédica, Porto, Portugal ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Melba Navarro
- International Center for Numerical Methods in Engineering (CIMNE), Edificio Nexus (103) Carrer del Gran Capità, 2-4, 08034 Barcelona, Spain
| | - Catarina R Almeida
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal INEB-Instituto de Engenharia Biomédica, Porto, Portugal Department of Medical Sciences and Institute for Biomedicine-iBiMED, University of Aveiro, 3810-193 Aveiro, Portugal
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Shafiq M, Kong D, Kim SH. SDF-1α peptide tethered polyester facilitates tissue repair by endogenous cell mobilization and recruitment. J Biomed Mater Res A 2017; 105:2670-2684. [DOI: 10.1002/jbm.a.36130] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 04/30/2017] [Accepted: 05/15/2017] [Indexed: 12/30/2022]
Affiliation(s)
- Muhammad Shafiq
- Korea University of Science and Technology; 176 Gajeong-dong Yuseong-gu Daejeon Republic of Korea
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology; Cheongryang Seoul 130-650 Republic of Korea
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science; Nankai University; Tianjin 300071 China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science; Nankai University; Tianjin 300071 China
- Tianjin Key Laboratory of Biomedical Materials; Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical; Tianjin China
| | - Soo Hyun Kim
- Korea University of Science and Technology; 176 Gajeong-dong Yuseong-gu Daejeon Republic of Korea
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology; Cheongryang Seoul 130-650 Republic of Korea
- Department of Nano-Bio-Information Technology (NBIT), KU-KIST Graduate School of Converging Science and Technology; Korea University; Seoul 136-701 Republic of Korea
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Yin Y, Li X, He XT, Wu RX, Sun HH, Chen FM. Leveraging Stem Cell Homing for Therapeutic Regeneration. J Dent Res 2017; 96:601-609. [PMID: 28414563 DOI: 10.1177/0022034517706070] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Resident stem cell pools in many tissues/organs are responsible not only for tissue maintenance during physiologic turnover but also for the process of wound repair following injury. With inspiration from stem cell trafficking within the body under physiologic and pathologic conditions, recent advances have been made toward inducing stem cell mobilization and directing patients' own cells to sites of interest for treating a broad spectrum of diseases. An evolving body of work corroborates that delivering guidance cues can mobilize stem cells from the bone marrow and drive these cells toward a specific region. In addition, the transplantation of cell-friendly biomaterials incorporating certain biomolecules has led to the regeneration of lost/damaged tissue without the need for delivering cellular materials manipulated ex vivo. Recently, cell homing has resulted in remarkable biological discoveries in the laboratory as well as great curative successes in preclinical scenarios. Here, we review the biological evidence underlying in vivo cell mobilization and homing with the aim of leveraging endogenous reparative cells for therapeutic applications. Considering both the promise and the obstacles of this approach, we discuss how matrix components of the in vivo milieu can be modified to promote the native regenerative process and inspire future tissue-engineering design.
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Affiliation(s)
- Y Yin
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - X Li
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - X T He
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - R X Wu
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - H H Sun
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - F M Chen
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
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Kim S, Piao J, Son Y, Hong HS. Substance P enhances proliferation and paracrine potential of adipose-derived stem cells in vitro. Biochem Biophys Res Commun 2017; 485:131-137. [DOI: 10.1016/j.bbrc.2017.02.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 02/06/2017] [Indexed: 01/03/2023]
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Progressive Muscle Cell Delivery as a Solution for Volumetric Muscle Defect Repair. Sci Rep 2016; 6:38754. [PMID: 27924941 PMCID: PMC5141432 DOI: 10.1038/srep38754] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 11/14/2016] [Indexed: 12/31/2022] Open
Abstract
Reconstructing functional volumetric tissue in vivo following implantation remains a critical challenge facing cell-based approaches. Several pre-vascularization approaches have been developed to increase cell viability following implantation. Structural and functional restoration was achieved in a preclinical rodent tissue defect; however, the approach used in this model fails to repair larger (>mm) defects as observed in a clinical setting. We propose an effective cell delivery system utilizing appropriate vascularization at the site of cell implantation that results in volumetric and functional tissue reconstruction. Our method of multiple cell injections in a progressive manner yielded improved cell survival and formed volumetric muscle tissues in an ectopic muscle site. In addition, this strategy supported the reconstruction of functional skeletal muscle tissue in a rodent volumetric muscle loss injury model. Results from our study suggest that our method may be used to repair volumetric tissue defects by overcoming diffusion limitations and facilitating adequate vascularization.
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Shafiq M, Kim SH. Biomaterials for host cell recruitment and stem cell fate modulation for tissue regeneration: Focus on neuropeptide substance P. Macromol Res 2016. [DOI: 10.1007/s13233-016-4134-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Dental Pulp Stem Cell Recruitment Signals within Injured Dental Pulp Tissue. Dent J (Basel) 2016; 4:dj4020008. [PMID: 29563450 PMCID: PMC5851269 DOI: 10.3390/dj4020008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 03/18/2016] [Accepted: 03/21/2016] [Indexed: 12/19/2022] Open
Abstract
The recruitment of dental pulp stem cells (DPSC) is a prerequisite for the regeneration of dentin damaged by severe caries and/or mechanical injury. Understanding the complex process of DPSC recruitment will benefit future in situ tissue engineering applications based on the stimulation of endogenous DPSC for dentin pulp regeneration. The current known mobilization signals and subsequent migration of DPSC towards the lesion site, which is influenced by the pulp inflammatory state and the application of pulp capping materials, are reviewed. The research outcome of migration studies may be affected by the applied methodology, which should thus be chosen with care. Both the advantages and disadvantages of commonly used assays for investigating DPSC migration are discussed. This review highlights the fact that DPSC recruitment is dependent not only on the soluble chemotactic signals, but also on their interaction with neighboring cells and the extracellular matrix, which can be modified under pathological conditions. These are discussed to explain how these modifications lead to the stimulation of DPSC recruitment.
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Kim JE, Jung KM, Kim SH, Jung Y. Combined Treatment with Systemic and Local Delivery of Substance P Coupled with Self-Assembled Peptides for a Hind Limb Ischemia Model. Tissue Eng Part A 2016; 22:545-55. [DOI: 10.1089/ten.tea.2015.0412] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Ji Eun Kim
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
- NBIT, KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Republic of Korea
| | - Ki Moon Jung
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Soo Hyun Kim
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
- NBIT, KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Republic of Korea
- Department of Biomedical Engineering, Korea University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Youngmee Jung
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
- Department of Biomedical Engineering, Korea University of Science and Technology (UST), Daejeon, Republic of Korea
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Shafiq M, Jung Y, Kim SH. Covalent immobilization of stem cell inducing/recruiting factor and heparin on cell-free small-diameter vascular graft for accelerated in situ tissue regeneration. J Biomed Mater Res A 2016; 104:1352-71. [PMID: 26822178 DOI: 10.1002/jbm.a.35666] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 01/17/2016] [Accepted: 01/25/2016] [Indexed: 12/12/2022]
Abstract
The development of cell-free vascular grafts has tremendous potential for tissue engineering. However, thrombus formation, less-than-ideal cell infiltration, and a lack of growth potential limit the application of electrospun scaffolds for in situ tissue-engineered vasculature. To overcome these challenges, here we present development of an acellular tissue-engineered vessel based on electrospun poly(L-lactide-co-ɛ-caprolactone) scaffolds. Heparin was conjugated to suppress thrombogenic responses, and substance P (SP) was immobilized to recruit host cells. SP was released in a sustained manner from scaffolds and recruited human bone marrow-derived mesenchymal stem cells. The biocompatibility and biological performance of the grafts were evaluated by in vivo experiments involving subcutaneous scaffold implantation in Sprague-Dawley rats (n = 12) for up to 4 weeks. Histological analysis revealed a higher extent of accumulative host cell infiltration, neotissue formation, collagen deposition, and elastin deposition in scaffolds containing either SP or heparin/SP than in the control groups. We also observed the presence of a large number of laminin-positive blood vessels, von Willebrand factor (vWF(+) ) cells, and alpha smooth muscle actin-positive cells in the explants containing SP and heparin/SP. Additionally, SP and heparin/SP grafts showed the existence of CD90(+) and CD105(+) MSCs and induced a large number of M2 macrophages to infiltrate the graft wall compared with that observed with the control group. Our cell-free grafts could enhance vascular regeneration by endogenous cell recruitment and by mediating macrophage polarization into the M2 phenotype, suggesting that these constructs may be a promising cell-free graft candidate and are worthy of further in vivo evaluation. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1352-1371, 2016.
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Affiliation(s)
- Muhammad Shafiq
- Department of Biomedical Engineering, Korea University of Science and Technology (UST) (305-350), Gajeong-Ro, Yuseong-Gu, Daejeon, Korea.,Center for Biomaterials 5, Hwarang-Ro 14-Gil, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seongbuk-Gu, Seoul, 136-791, Republic of Korea
| | - Youngmee Jung
- Department of Biomedical Engineering, Korea University of Science and Technology (UST) (305-350), Gajeong-Ro, Yuseong-Gu, Daejeon, Korea.,Center for Biomaterials 5, Hwarang-Ro 14-Gil, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seongbuk-Gu, Seoul, 136-791, Republic of Korea
| | - Soo Hyun Kim
- Department of Biomedical Engineering, Korea University of Science and Technology (UST) (305-350), Gajeong-Ro, Yuseong-Gu, Daejeon, Korea.,Center for Biomaterials 5, Hwarang-Ro 14-Gil, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seongbuk-Gu, Seoul, 136-791, Republic of Korea.,NBIT, KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Korea
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Abstract
Biomaterials have played an increasingly prominent role in the success of biomedical devices and in the development of tissue engineering, which seeks to unlock the regenerative potential innate to human tissues/organs in a state of deterioration and to restore or reestablish normal bodily function. Advances in our understanding of regenerative biomaterials and their roles in new tissue formation can potentially open a new frontier in the fast-growing field of regenerative medicine. Taking inspiration from the role and multi-component construction of native extracellular matrices (ECMs) for cell accommodation, the synthetic biomaterials produced today routinely incorporate biologically active components to define an artificial in vivo milieu with complex and dynamic interactions that foster and regulate stem cells, similar to the events occurring in a natural cellular microenvironment. The range and degree of biomaterial sophistication have also dramatically increased as more knowledge has accumulated through materials science, matrix biology and tissue engineering. However, achieving clinical translation and commercial success requires regenerative biomaterials to be not only efficacious and safe but also cost-effective and convenient for use and production. Utilizing biomaterials of human origin as building blocks for therapeutic purposes has provided a facilitated approach that closely mimics the critical aspects of natural tissue with regard to its physical and chemical properties for the orchestration of wound healing and tissue regeneration. In addition to directly using tissue transfers and transplants for repair, new applications of human-derived biomaterials are now focusing on the use of naturally occurring biomacromolecules, decellularized ECM scaffolds and autologous preparations rich in growth factors/non-expanded stem cells to either target acceleration/magnification of the body's own repair capacity or use nature's paradigms to create new tissues for restoration. In particular, there is increasing interest in separating ECMs into simplified functional domains and/or biopolymeric assemblies so that these components/constituents can be discretely exploited and manipulated for the production of bioscaffolds and new biomimetic biomaterials. Here, following an overview of tissue auto-/allo-transplantation, we discuss the recent trends and advances as well as the challenges and future directions in the evolution and application of human-derived biomaterials for reconstructive surgery and tissue engineering. In particular, we focus on an exploration of the structural, mechanical, biochemical and biological information present in native human tissue for bioengineering applications and to provide inspiration for the design of future biomaterials.
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32
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Yu Y, Wu RX, Gao LN, Xia Y, Tang HN, Chen FM. Stromal cell-derived factor-1-directed bone marrow mesenchymal stem cell migration in response to inflammatory and/or hypoxic stimuli. Cell Adh Migr 2016; 10:342-59. [PMID: 26745021 DOI: 10.1080/19336918.2016.1139287] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Directing cell trafficking toward a target site of interest is critical for advancing stem cell therapy in clinical theranostic applications. In this study, we investigated the effects of inflammatory and/or hypoxic stimuli on the migration of bone marrow mesenchymal stem cells (BMMSCs) during in vitro culture and after in vivo implantation. Using tablet scratch experiments and observations from a transwell system, we found that both inflammatory and hypoxic stimuli significantly enhanced cell migration. However, the combination of inflammatory and hypoxic stimuli did not result in a synergistic effect. The presence of stromal cell-derived factor-1 (SDF-1) significantly enhanced cell migration irrespective of the incubation conditions, and these positive effects could be blocked by treatment with AMD3100. Based on a time course experiment, we found that preconditioning cells with either inflammatory or hypoxic stimuli for 24 h or with both stimuli for 12 h led to high levels of chemokine receptor type 4 (CXCR4) expression. In vivo studies further demonstrated that pretreatment of BMMSCs with inflammatory and/or hypoxic stimuli resulted in an increased number of systemically injected cells migrating toward skin injuries, and local SDF-1 administration significantly increased cell migration. These findings suggest that in vitro control of either inflammatory or hypoxic stimuli has significant potential to enhance SDF-1-directed BMMSC migration via the upregulation of CXCR4 expression. Although combining the stimuli did not necessarily lead to a synergistic effect, the potential to reduce the dose and time required for cell preconditioning indicates that combinations of various strategies warrant further exploration.
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Affiliation(s)
- Yang Yu
- a State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China.,b Shaanxi Key Laboratory of Stomatology, Biomaterials Unit, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China
| | - Rui-Xin Wu
- a State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China.,b Shaanxi Key Laboratory of Stomatology, Biomaterials Unit, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China
| | - Li-Na Gao
- a State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China.,b Shaanxi Key Laboratory of Stomatology, Biomaterials Unit, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China
| | - Yu Xia
- a State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China.,b Shaanxi Key Laboratory of Stomatology, Biomaterials Unit, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China
| | - Hao-Ning Tang
- a State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China.,b Shaanxi Key Laboratory of Stomatology, Biomaterials Unit, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China
| | - Fa-Ming Chen
- a State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China.,b Shaanxi Key Laboratory of Stomatology, Biomaterials Unit, School of Stomatology, Fourth Military Medical University , Xi'an , P. R., China
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Neuropeptide Substance-P-Conjugated Chitosan Nanofibers as an Active Modulator of Stem Cell Recruiting. Int J Mol Sci 2016; 17:ijms17010068. [PMID: 26751441 PMCID: PMC4730313 DOI: 10.3390/ijms17010068] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 12/23/2015] [Accepted: 12/30/2015] [Indexed: 01/09/2023] Open
Abstract
The goal to successful wound healing is essentially to immobilize and recruit appropriate numbers of host stem or progenitor cells to the wound area. In this study, we developed a chitosan nanofiber-immobilized neuropeptide substance-P (SP), which mediates stem cell mobilization and migration, onto the surfaces of nanofibers using a peptide-coupling agent, and evaluated its biological effects on stem cells. The amount of immobilized SP on chitosan nanofibers was modulated over the range of 5.89 ± 3.27 to 75.29 ± 24.31 ng when reacted with 10 to 500 ng SP. In vitro migration assays showed that SP-incorporated nanofibers induced more rapid migration of human mesenchymal stem cells on nanofibers compared to pristine samples. Finally, the conjugated SP evoked a minimal foreign body reaction and recruited a larger number of CD29- and CD44-positive stem cells into nanofibers in a mouse subcutaneous pocket model.
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Bonaventura G, Chamayou S, Liprino A, Guglielmino A, Fichera M, Caruso M, Barcellona ML. Different Tissue-Derived Stem Cells: A Comparison of Neural Differentiation Capability. PLoS One 2015; 10:e0140790. [PMID: 26517263 PMCID: PMC4627815 DOI: 10.1371/journal.pone.0140790] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 09/30/2015] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Stem cells are capable of self-renewal and differentiation into a wide range of cell types with multiple clinical and therapeutic applications. Stem cells are providing hope for many diseases that currently lack effective therapeutic methods, including strokes, Huntington's disease, Alzheimer's and Parkinson's disease. However, the paucity of suitable cell types for cell replacement therapy in patients suffering from neurological disorders has hampered the development of this promising therapeutic approach. AIM The innovative aspect of this study has been to evaluate the neural differentiation capability of different tissue-derived stem cells coming from different tissue sources such as bone marrow, umbilical cord blood, human endometrium and amniotic fluid, cultured under the same supplemented media neuro-transcription factor conditions, testing the expression of neural markers such as GFAP, Nestin and Neurofilaments using the immunofluorescence staining assay and some typical clusters of differentiation such as CD34, CD90, CD105 and CD133 by using the cytofluorimetric test assay. RESULTS Amniotic fluid derived stem cells showed a more primitive phenotype compared to the differentiating potential demonstrated by the other stem cell sources, representing a realistic possibility in the field of regenerative cell therapy suitable for neurodegenerative diseases.
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Affiliation(s)
- Gabriele Bonaventura
- Department of Pharmaceutical Science, Biochemistry Section, University of Catania, Catania, Italy
- Institute of Neurological Sciences, Italian National Research Council, Catania, Italy
| | - Sandrine Chamayou
- Unità di Medicina della Riproduzione, Fondazione Hera, Sant’Agata Li Battiati (CT), Italy
| | - Annalisa Liprino
- Department of Obstetrics and Gynecology and Radiological Sciences (OGiRA), University of Catania, Catania, Italy
| | - Antonino Guglielmino
- Unità di Medicina della Riproduzione, Fondazione Hera, Sant’Agata Li Battiati (CT), Italy
| | - Michele Fichera
- Department of Obstetrics and Gynecology and Radiological Sciences (OGiRA), University of Catania, Catania, Italy
| | - Massimo Caruso
- Department of Clinic and Molecular Biomedicine, University of Catania, Catania, Italy
| | - Maria Luisa Barcellona
- Department of Pharmaceutical Science, Biochemistry Section, University of Catania, Catania, Italy
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Kim SJ, Kim JE, Kim SH, Kim SJ, Jeon SJ, Kim SH, Jung Y. Therapeutic effects of neuropeptide substance P coupled with self-assembled peptide nanofibers on the progression of osteoarthritis in a rat model. Biomaterials 2015; 74:119-30. [PMID: 26454050 DOI: 10.1016/j.biomaterials.2015.09.040] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 09/25/2015] [Accepted: 09/26/2015] [Indexed: 12/13/2022]
Abstract
Osteoarthritis (OA) is a progressively degenerative disease that is accompanied by articular cartilage deterioration, sclerosis of the underlying bone and ultimately joint destruction. Although therapeutic medicine and surgical treatment are done to alleviate the symptoms of OA, it is difficult to restore normal cartilage function. Mesenchymal stem cell (MSC) transplantation is one of the therapeutic trials for treating OA due to its potential, and many researchers have recently reported on the effects of MSCs associated with OA therapy. However, cell transplantation has limitations including low stem cell survival rates, limited stem cell sources and long-term ex vivo culturing. In this study, we evaluated the efficacy of neuropeptide substance P coupled with self-assembled peptide hydrogels in a rat knee model to prevent OA by mobilizing endogenous MSCs to the defect site. To assess the effect of the optimal concentration of SP, varying concentrations of bioactive peptides (substance P (SP) with self-assembled peptide (SAP)) were used to treat OA. OA was induced by unilateral anterior cruciate and medial collateral ligament transection of the knee joints. Forty rats were randomly allocated into 5 groups: SAP-0.5SP (17.5 μg of SP), SAP-SP group (35 μg of SP), SAP-2SP group (70 μg of SP), SAP-SP-MSC group, and control group. At 2 weeks post-surgical induction of OA, each mixture was injected into the joint cavity of the left knee. Histologic examination, immunofluorescence staining, quantitative real time-polymerase chain reaction and micro-computed tomography analysis were done at 6 weeks post-surgical induction. As shown by our results, the SAP-SP hydrogel accelerated tissue regeneration by anti-inflammatory modulation shown by an anti-inflammation test using dot-blot in vitro. Additionally, the treatment of OA in the SAP-SP group showed markedly improved cartilage regeneration through the recruitment of MSCs. Thus, these cells could be infiltrating into the defect site for the regeneration of OA defects. In addition, from the behavioral studies on the rats, the number of rears significantly increased 2 and 4 weeks post-injection in all the groups. Our results show that bioactive peptides may have clinical potential for inhibiting the progression of OA as well as its treatment by recruiting autologous stem cells without cell transplantation.
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Affiliation(s)
- Sang Jun Kim
- Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Seoul 135-710, Republic of Korea.
| | - Ji Eun Kim
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea; NBIT, KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-701, Republic of Korea
| | - Su Hee Kim
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea; NBIT, KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-701, Republic of Korea
| | - Sun Jeong Kim
- Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Seoul 135-710, Republic of Korea
| | - Su Jeong Jeon
- Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Seoul 135-710, Republic of Korea
| | - Soo Hyun Kim
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea; NBIT, KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-701, Republic of Korea; Department of Biomedical Engineering, Korea University of Science and Technology (UST), Daejeon 305-350, Republic of Korea
| | - Youngmee Jung
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea; Department of Biomedical Engineering, Korea University of Science and Technology (UST), Daejeon 305-350, Republic of Korea.
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36
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Noh SS, Bhang SH, La WG, Lee S, Shin JY, Ma YJ, Jang HK, Kang S, Jin M, Park J, Kim BS. A Dual Delivery of Substance P and Bone Morphogenetic Protein-2 for Mesenchymal Stem Cell Recruitment and Bone Regeneration. Tissue Eng Part A 2015; 21:1275-87. [DOI: 10.1089/ten.tea.2014.0182] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Seong-Seo Noh
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Suk Ho Bhang
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Wan-Geun La
- Department of Nanobiomedical Science, Dankook University, Cheonan-Si, Republic of Korea
| | - Seahyoung Lee
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-Si, Republic of Korea
| | - Jung-Youn Shin
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Yoon-Ji Ma
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul, Republic of Korea
| | - Hyeon-Ki Jang
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul, Republic of Korea
| | - Seokyung Kang
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Min Jin
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Jooyeon Park
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Byung-Soo Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul, Republic of Korea
- Institutes of Bioengineering and Chemical Processes, Seoul National University, Seoul, Republic of Korea
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Shafiq M, Jung Y, Kim SH. Stem cell recruitment, angiogenesis, and tissue regeneration in substance P-conjugated poly(l-lactide-co-ɛ-caprolactone) nonwoven meshes. J Biomed Mater Res A 2015; 103:2673-88. [DOI: 10.1002/jbm.a.35400] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 12/23/2014] [Accepted: 01/20/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Muhammad Shafiq
- Center for Biomaterials; Biomedical Research Institute, Korea Institute of Science and Technology; Seoul 136791 South Korea
- Department of Biomedical Engineering; Korea University of Science and Technology; 113 Gwahangno, Yuseong-gu Daejeon 305333 South Korea
| | - Youngmee Jung
- Center for Biomaterials; Biomedical Research Institute, Korea Institute of Science and Technology; Seoul 136791 South Korea
- Department of Biomedical Engineering; Korea University of Science and Technology; 113 Gwahangno, Yuseong-gu Daejeon 305333 South Korea
| | - Soo Hyun Kim
- Center for Biomaterials; Biomedical Research Institute, Korea Institute of Science and Technology; Seoul 136791 South Korea
- Department of Biomedical Engineering; Korea University of Science and Technology; 113 Gwahangno, Yuseong-gu Daejeon 305333 South Korea
- NBIT; KU-KIST Graduate School of Converging Science and Technology; Korea University; Seoul 136701 South Korea
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38
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Jin Y, Hong HS, Son Y. Substance P enhances mesenchymal stem cells-mediated immune modulation. Cytokine 2015; 71:145-53. [DOI: 10.1016/j.cyto.2014.10.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 10/16/2014] [Accepted: 10/16/2014] [Indexed: 12/23/2022]
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Ju YM, Atala A, Yoo JJ, Lee SJ. In situ regeneration of skeletal muscle tissue through host cell recruitment. Acta Biomater 2014; 10:4332-9. [PMID: 24954910 DOI: 10.1016/j.actbio.2014.06.022] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 05/16/2014] [Accepted: 06/12/2014] [Indexed: 01/07/2023]
Abstract
Standard reconstructive procedures for restoring normal function after skeletal muscle defects involve the use of existing host tissues such as muscular flaps. In many instances, this approach is not feasible and delays the rehabilitation process and restoration of tissue function. Currently, cell-based tissue engineering strategies have been used for reconstruction; however, donor tissue biopsy and ex vivo cell manipulation are required prior to implantation. The present study aimed to overcome these limitations by demonstrating mobilization of muscle cells into a target-specific site for in situ muscle regeneration. First, we investigated whether host muscle cells could be mobilized into an implanted scaffold. Poly(l-lactic acid) (PLLA) scaffolds were implanted in the tibialis anterior (TA) muscle of rats, and the retrieved scaffolds were characterized by examining host cell infiltration in the scaffolds. The host cell infiltrates, including Pax7+ cells, gradually increased with time. Second, we demonstrated that host muscle cells could be enriched by a myogenic factor released from the scaffolds. Gelatin-based scaffolds containing a myogenic factor were implanted in the TA muscle of rats, and the Pax7+ cell infiltration and newly formed muscle fibers were examined. By the second week after implantation, the Pax7+ cell infiltrates and muscle formation were significantly accelerated within the scaffolds containing insulin-like growth factor 1 (IGF-1). Our data suggest an ability of host stem cells to be recruited into the scaffolds with the capability of differentiating to muscle cells. In addition, the myogenic factor effectively promoted host cell recruitment, which resulted in accelerating muscle regeneration in situ.
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Affiliation(s)
- Young Min Ju
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - James J Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
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40
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Towards an in vitro model mimicking the foreign body response: tailoring the surface properties of biomaterials to modulate extracellular matrix. Sci Rep 2014; 4:6325. [PMID: 25234587 PMCID: PMC4168285 DOI: 10.1038/srep06325] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 07/28/2014] [Indexed: 12/24/2022] Open
Abstract
Despite various studies to minimize host reaction following a biomaterial implantation, an appealing strategy in regenerative medicine is to actively use such an immune response to trigger and control tissue regeneration. We have developed an in vitro model to modulate the host response by tuning biomaterials' surface properties through surface modifications techniques as a new strategy for tissue regeneration applications. Results showed tunable surface topography, roughness, wettability, and chemistry by varying treatment type and exposure, allowing for the first time to correlate the effect of these surface properties on cell attachment, morphology, strength and proliferation, as well as proinflammatory (IL-1β, IL-6) and antiflammatory cytokines (TGF-β1, IL-10) secreted in medium, and protein expression of collagen and elastin. Surface microstructuring, derived from chloroform partial etching, increased surface roughness and oxygen content. This resulted in enhanced cell adhesion, strength and proliferation as well as a balance of soluble factors for optimum collagen and elastin synthesis for tissue regeneration. By linking surface parameters to cell activity, we could determine the fate of the regenerated tissue to create successful soft tissue-engineered replacement.
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41
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Andreas K, Sittinger M, Ringe J. Toward in situ tissue engineering: chemokine-guided stem cell recruitment. Trends Biotechnol 2014; 32:483-92. [DOI: 10.1016/j.tibtech.2014.06.008] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 06/08/2014] [Accepted: 06/12/2014] [Indexed: 12/13/2022]
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42
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Choi YC, Choi JS, Woo CH, Cho YW. Stem cell delivery systems inspired by tissue-specific niches. J Control Release 2014; 193:42-50. [PMID: 24979211 DOI: 10.1016/j.jconrel.2014.06.032] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 05/29/2014] [Accepted: 06/06/2014] [Indexed: 12/18/2022]
Abstract
Since stem cells have the capacity to differentiate into a variety of cell types, stem cell delivery systems (SCDSs) can be effective therapeutic strategies for a multitude of diseases and disorders. For stem cell-based therapy, stem cells are introduced directly (or peripherally) into a target tissue via different delivery systems. Despite initial promising results obtained from preclinical studies, a number of technical hurdles must be overcome for ultimate clinical utility of stem cells. A key aspect of SCDSs is how to create local environments, called stem cell niches, for improvement of survival and engraftment as well as the fate of transplanted stem cells. The stem cell niches encompassing a wide range of biochemical, biophysical, and biomechanical cues play a guidance role to modulate stem cell behaviors such as adhesion, proliferation, and differentiation. Recent studies have tried to decipher the complex interplay between stem cells and niches, and thereafter to engineer SCDS, mimicking dynamic stem cell niches encompassing a wide range of biochemical, biophysical, and biomechanical cues. Here, we discuss the biological role of stem cell niches and highlight recent progress in SCDS to mimic stem cell niches, particularly focusing on important biomaterial properties for modulating stem cell fate.
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Affiliation(s)
- Young Chan Choi
- Department of Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 426-791, South Korea
| | - Ji Suk Choi
- Department of Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 426-791, South Korea
| | - Chang Hee Woo
- Department of Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 426-791, South Korea
| | - Yong Woo Cho
- Department of Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 426-791, South Korea.
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43
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La WG, Jin M, Park S, Yoon HH, Jeong GJ, Bhang SH, Park H, Char K, Kim BS. Delivery of bone morphogenetic protein-2 and substance P using graphene oxide for bone regeneration. Int J Nanomedicine 2014; 9 Suppl 1:107-16. [PMID: 24872706 PMCID: PMC4024979 DOI: 10.2147/ijn.s50742] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In this study, we demonstrate that graphene oxide (GO) can be used for the delivery of bone morphogenetic protein-2 (BMP-2) and substance P (SP), and that this delivery promotes bone formation on titanium (Ti) implants that are coated with GO. GO coating on Ti substrate enabled a sustained release of BMP-2. BMP-2 delivery using GO-coated Ti exhibited a higher alkaline phosphatase activity in bone-forming cells in vitro compared with bare Ti. SP, which is known to recruit mesenchymal stem cells (MSCs), was co-delivered using Ti or GO-coated Ti to further promote bone formation. SP induced the migration of MSCs in vitro. The dual delivery of BMP-2 and SP using GO-coated Ti showed the greatest new bone formation on Ti implanted in the mouse calvaria compared with other groups. This approach may be useful to improve osteointegration of Ti in dental or orthopedic implants.
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Affiliation(s)
- Wan-Geun La
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Min Jin
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Saibom Park
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea ; The National Creative Research Initiative Center for Intelligent Hybrids, Seoul National University, Seoul, Republic of Korea
| | - Hee-Hun Yoon
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Gun-Jae Jeong
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Suk Ho Bhang
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Hoyoung Park
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea ; The National Creative Research Initiative Center for Intelligent Hybrids, Seoul National University, Seoul, Republic of Korea
| | - Kookheon Char
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea ; The National Creative Research Initiative Center for Intelligent Hybrids, Seoul National University, Seoul, Republic of Korea
| | - Byung-Soo Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea ; Institute of Bioengineering, Institute of Chemical Processes, Engineering Research Institute, Seoul National University, Seoul, Republic of Korea
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44
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Park JY, Choi JC, Shim JH, Lee JS, Park H, Kim SW, Doh J, Cho DW. A comparative study on collagen type I and hyaluronic acid dependent cell behavior for osteochondral tissue bioprinting. Biofabrication 2014; 6:035004. [PMID: 24758832 DOI: 10.1088/1758-5082/6/3/035004] [Citation(s) in RCA: 128] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bioprinting is a promising technique for engineering composite tissues, such as osteochondral tissues. In this study, as a first step toward bioprinting-based osteochondral tissue regeneration, we systematically examined the behavior of chondrocytes and osteoblasts to hyaluronic acid (HA) and type I collagen (Col-1) hydrogels. First, we demonstrated that cells on hydrogels that were comprised of major native tissue extracellular matrix (ECM) components (i.e. chondrocytes on HA hydrogels and osteoblasts on Col-1 hydrogels) exhibited better proliferation and cell function than cells on non-native ECM hydrogels (i.e., chondrocytes on Col-1 hydrogels and osteoblasts on HA hydrogels). In addition, cells located near their native ECM hydrogels migrated towards them. Finally, we bioprinted three-dimensional (3D) osteochondral tissue-mimetic structures composed of two compartments, osteoblast-encapsulated Col-1 hydrogels and chondrocyte-encapsulated HA hydrogels, and found viability and functions of each cell type were well maintained within the 3D structures up to 14 days in vitro. These results suggest that with proper choice of hydrogel materials, bioprinting-based approaches can be successfully applied for osteochondral tissue regeneration.
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Affiliation(s)
- Ju Young Park
- Division of Integrative Biosciences and Biotechnology, POSTECH, Pohang, Korea
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45
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Hou T, Li Z, Luo F, Xie Z, Wu X, Xing J, Dong S, Xu J. A composite demineralized bone matrix--self assembling peptide scaffold for enhancing cell and growth factor activity in bone marrow. Biomaterials 2014; 35:5689-99. [PMID: 24755526 DOI: 10.1016/j.biomaterials.2014.03.079] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 03/27/2014] [Indexed: 12/12/2022]
Abstract
The need for suitable bone grafts is high; however, there are limitations to all current graft sources, such as limited availability, the invasive harvest procedure, insufficient osteoinductive properties, poor biocompatibility, ethical problems, and degradation properties. The lack of osteoinductive properties is a common problem. As an allogenic bone graft, demineralized bone matrix (DBM) can overcome issues such as limited sources and comorbidities caused by invasive harvest; however, DBM is not sufficiently osteoinductive. Bone marrow has been known to magnify osteoinductive components for bone reconstruction because it contains osteogenic cells and factors. Mesenchymal stem cells (MSCs) derived from bone marrow are the gold standard for cell seeding in tissue-engineered biomaterials for bone repair, and these cells have demonstrated beneficial effects. However, the associated high cost and the complicated procedures limit the use of tissue-engineered bone constructs. To easily enrich more osteogenic cells and factors to DBM by selective cell retention technology, DBM is modified by a nanoscale self-assembling peptide (SAP) to form a composite DBM/SAP scaffold. By decreasing the pore size and increasing the charge interaction, DBM/SAP scaffolds possess a much higher enriching yield for osteogenic cells and factors compared with DBM alone scaffolds. At the same time, SAP can build a cellular microenvironment for cell adhesion, proliferation, and differentiation that promotes bone reconstruction. As a result, a suitable bone graft fabricated by DBM/SAP scaffolds and bone marrow represents a new strategy and product for bone transplantation in the clinic.
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Affiliation(s)
- Tianyong Hou
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, the Third Military Medical University, Chongqing, China; Center of Regenetive and Reconstructive Engineering Technology in Chongqing City, Chongqing, China; Tissue Engineering Laboratory of Chongqing City, Chongqing, China.
| | - Zhiqiang Li
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, the Third Military Medical University, Chongqing, China; Center of Regenetive and Reconstructive Engineering Technology in Chongqing City, Chongqing, China; Tissue Engineering Laboratory of Chongqing City, Chongqing, China; Department of Orthopedics, General Hospital of Chengdu Military Commanding Region, Chengdu, China
| | - Fei Luo
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, the Third Military Medical University, Chongqing, China; Center of Regenetive and Reconstructive Engineering Technology in Chongqing City, Chongqing, China; Tissue Engineering Laboratory of Chongqing City, Chongqing, China.
| | - Zhao Xie
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, the Third Military Medical University, Chongqing, China; Center of Regenetive and Reconstructive Engineering Technology in Chongqing City, Chongqing, China; Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Xuehui Wu
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, the Third Military Medical University, Chongqing, China; Center of Regenetive and Reconstructive Engineering Technology in Chongqing City, Chongqing, China; Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Junchao Xing
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, the Third Military Medical University, Chongqing, China; Center of Regenetive and Reconstructive Engineering Technology in Chongqing City, Chongqing, China; Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Shiwu Dong
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, the Third Military Medical University, Chongqing, China; Center of Regenetive and Reconstructive Engineering Technology in Chongqing City, Chongqing, China; Tissue Engineering Laboratory of Chongqing City, Chongqing, China; Department of Biomedical Materials Science, College of Biomedical Engineering, Third Military Medical University, Chongqing, China
| | - Jianzhong Xu
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, the Third Military Medical University, Chongqing, China; Center of Regenetive and Reconstructive Engineering Technology in Chongqing City, Chongqing, China; Tissue Engineering Laboratory of Chongqing City, Chongqing, China.
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46
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Dalonneau F, Liu XQ, Sadir R, Almodovar J, Mertani HC, Bruckert F, Albiges-Rizo C, Weidenhaupt M, Lortat-Jacob H, Picart C. The effect of delivering the chemokine SDF-1α in a matrix-bound manner on myogenesis. Biomaterials 2014; 35:4525-4535. [PMID: 24612919 DOI: 10.1016/j.biomaterials.2014.02.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 02/05/2014] [Indexed: 02/07/2023]
Abstract
Several chemokines are important in muscle myogenesis and in the recruitment of muscle precursors during muscle regeneration. Among these, the SDF-1α chemokine (CXCL12) is a potent chemoattractant known to be involved in muscle repair. SDF-1α was loaded in polyelectrolyte multilayer films made of poly(L-lysine) and hyaluronan to be delivered locally to myoblast cells in a matrix-bound manner. The adsorbed amounts of SDF-1α were tuned over a large range from 100 ng/cm(2) to 5 μg/cm(2), depending on the initial concentration of SDF-1α in solution, its pH, and on the film crosslinking extent. Matrix-bound SDF-1α induced a striking increase in myoblast spreading, which was revealed when it was delivered from weakly crosslinked films. It also significantly enhanced cell migration in a dose-dependent manner, which again depended on its presentation by the biopolymeric film. The low-crosslinked film was the most efficient in boosting cell migration. Furthermore, matrix-bound SDF-1α also increased the expression of myogenic markers but the fusion index decreased in a dose-dependent manner with the adsorbed amount of SDF-1α. At high adsorbed amounts of SDF-1α, a large number of Troponin T-positive cells had only one nucleus. Overall, this work reveals the importance of the presentation mode of SDF-1α to emphasize its effect on myogenic processes. These films may be further used to provide insight into the role of SDF-1α presented by a biomaterial in physiological or pathological processes.
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Affiliation(s)
- Fabien Dalonneau
- CNRS UMR 5628 (LMGP), 3 parvis Louis Néel, 38016 Grenoble, France.,Université Grenoble Alpes, LMGP, 3 parvis Louis Néel, 38016 Grenoble, France
| | - Xi Qiu Liu
- CNRS UMR 5628 (LMGP), 3 parvis Louis Néel, 38016 Grenoble, France.,Université Grenoble Alpes, LMGP, 3 parvis Louis Néel, 38016 Grenoble, France.,FONDATION ARC, 9 rue Guy Môquet 94803 Villejuif, France
| | - Rabia Sadir
- Univ. Grenoble Alpes, Institut de Biologie Structurale (IBS), F-38027 Grenoble, France.,CNRS, IBS, F-38027 Grenoble, France.,CEA, DSV, IBS, F-38027 Grenoble, France
| | - Jorge Almodovar
- CNRS UMR 5628 (LMGP), 3 parvis Louis Néel, 38016 Grenoble, France.,Université Grenoble Alpes, LMGP, 3 parvis Louis Néel, 38016 Grenoble, France
| | - Hichem C Mertani
- Centre de Recherche en Cancérologie de Lyon, UMR INSERM 1052 - CNRS 5286, 28, rue Laennec, 69373 LYON cedex 08, France
| | - Franz Bruckert
- CNRS UMR 5628 (LMGP), 3 parvis Louis Néel, 38016 Grenoble, France.,Université Grenoble Alpes, LMGP, 3 parvis Louis Néel, 38016 Grenoble, France
| | - Corinne Albiges-Rizo
- Inserm U823, ERL CNRS5284, Université Joseph Fourier, Institut Albert Bonniot, Site Santé, BP170, 38042 Grenoble cedex 9, France
| | - Marianne Weidenhaupt
- CNRS UMR 5628 (LMGP), 3 parvis Louis Néel, 38016 Grenoble, France.,Université Grenoble Alpes, LMGP, 3 parvis Louis Néel, 38016 Grenoble, France
| | - Hugues Lortat-Jacob
- Univ. Grenoble Alpes, Institut de Biologie Structurale (IBS), F-38027 Grenoble, France.,CNRS, IBS, F-38027 Grenoble, France.,CEA, DSV, IBS, F-38027 Grenoble, France
| | - Catherine Picart
- CNRS UMR 5628 (LMGP), 3 parvis Louis Néel, 38016 Grenoble, France.,Université Grenoble Alpes, LMGP, 3 parvis Louis Néel, 38016 Grenoble, France
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47
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In situ tissue regeneration through host stem cell recruitment. Exp Mol Med 2013; 45:e57. [PMID: 24232256 PMCID: PMC3849571 DOI: 10.1038/emm.2013.118] [Citation(s) in RCA: 161] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 07/31/2013] [Accepted: 08/06/2013] [Indexed: 02/06/2023] Open
Abstract
The field of tissue engineering has made steady progress in translating various tissue applications. Although the classical tissue engineering strategy, which involves the use of culture-expanded cells and scaffolds to produce a tissue construct for implantation, has been validated, this approach involves extensive cell expansion steps, requiring a lot of time and laborious effort before implantation. To bypass this ex vivo process, a new approach has been introduced. In situ tissue regeneration utilizes the body's own regenerating capacity by mobilizing host endogenous stem cells or tissue-specific progenitor cells to the site of injury. This approach relies on development of a target-specific biomaterial scaffolding system that can effectively control the host microenvironment and mobilize host stem/progenitor cells to target tissues. An appropriate microenvironment provided by implanted scaffolds would facilitate recruitment of host cells that can be guided to regenerating structural and functional tissues.
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48
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Lee KW, Johnson NR, Gao J, Wang Y. Human progenitor cell recruitment via SDF-1α coacervate-laden PGS vascular grafts. Biomaterials 2013; 34:9877-85. [PMID: 24060423 DOI: 10.1016/j.biomaterials.2013.08.082] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Accepted: 08/27/2013] [Indexed: 01/16/2023]
Abstract
Host cell recruitment is crucial for vascular graft remodeling and integration into the native blood vessel; it is especially important for cell-free strategies which rely on host remodeling. Controlled release of growth factors from vascular grafts may enhance host cell recruitment. Stromal cell-derived factor (SDF)-1α has been shown to induce host progenitor cell migration and recruitment; however, its potential in regenerative therapies is often limited due to its short half-life in vivo. This report describes a coacervate drug delivery system for enhancing progenitor cell recruitment into an elastomeric vascular graft by conferring protection of SDF-1α. Heparin and a synthetic polycation are used to form a coacervate, which is incorporated into poly(glycerol sebacate) (PGS) scaffolds. In addition to protecting SDF-1α, the coacervate facilitates uniform scaffold coating. Coacervate-laden scaffolds have high SDF-1α loading efficiency and provide sustained release under static and physiologically-relevant flow conditions with minimal initial burst release. In vitro assays showed that coacervate-laden scaffolds enhance migration and infiltration of human endothelial and mesenchymal progenitor cells by maintaining a stable SDF-1α gradient. These results suggest that SDF-1α coacervate-laden scaffolds show great promise for in situ vascular regeneration.
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Affiliation(s)
- Kee-Won Lee
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA
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49
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Rennert RC, Sorkin M, Garg RK, Gurtner GC. Stem cell recruitment after injury: lessons for regenerative medicine. Regen Med 2013; 7:833-50. [PMID: 23164083 DOI: 10.2217/rme.12.82] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Tissue repair and regeneration are thought to involve resident cell proliferation as well as the selective recruitment of circulating stem and progenitor cell populations through complex signaling cascades. Many of these recruited cells originate from the bone marrow, and specific subpopulations of bone marrow cells have been isolated and used to augment adult tissue regeneration in preclinical models. Clinical studies of cell-based therapies have reported mixed results, however, and a variety of approaches to enhance the regenerative capacity of stem cell therapies are being developed based on emerging insights into the mechanisms of progenitor cell biology and recruitment following injury. This article discusses the function and mechanisms of recruitment of important bone marrow-derived stem and progenitor cell populations following injury, as well as the emerging therapeutic applications targeting these cells.
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Affiliation(s)
- Robert C Rennert
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Hagey Building GK-201, Stanford, CA 94305-5148, USA
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50
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Kim JH, Jung Y, Kim BS, Kim SH. Stem cell recruitment and angiogenesis of neuropeptide substance P coupled with self-assembling peptide nanofiber in a mouse hind limb ischemia model. Biomaterials 2012. [PMID: 23206876 DOI: 10.1016/j.biomaterials.2012.11.008] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
For the successful treatment of ischemia, it is important to resupply sufficient blood into ischemic regions by inducing angiogenesis. Many stem cell transplantation studies have been reported to enhance angiogenesis, especially those relating to mesenchymal stem cells (MSCs); however cell transplantation has a number of limitations, such as the low rate of cell survival and donor cell shortage. In this study, we developed bioactive peptides by immobilizing substance P into self-assembling peptides, and their MSCs recruiting ability and therapeutic effects were evaluated by using ischemic hind limb models. Limb ischemia was produced in athymic mice, and 1% (wt/vol) peptides were injected into ischemic sites (n = 6 in each group: ischemia, substance P, RADA16-II, RADA16-II + substance P, and RADA16-II + RADA-SP (bioactive peptides)). The tissues were harvested for histological analysis and tissue perfusion measurement at 1, 3, 7, and 28 days after injection. We observed that bioactive peptides assembled themselves (<10 nm nanofibers) and formed 3-dimensional (3D) microenvironments within ischemic regions. In the animal study, it was observed that by applying bioactive peptides, substance P continued to be released at 28 days, and consequently, MSCs were successfully recruited into ischemic regions. Bioactive peptides could prevent fibrosis, promote neovascularization, enhance tissue perfusion, and prevent limb salvages. Our results demonstrated that bioactive peptides are one of the most powerful tools for the treatment of ischemia, through their recruitment of autologous MSCs and promotion of angiogenesis without cells transplantation.
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Affiliation(s)
- Ji Hyun Kim
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
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