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Xia P, Zhang K, Gong Y, Li G, Yan S, Yin J. Injectable Stem Cell Laden Open Porous Microgels That Favor Adipogenesis: In Vitro and in Vivo Evaluation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:34751-34761. [PMID: 28930432 DOI: 10.1021/acsami.7b13065] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Microgels, with large surface area per volume, show great advantages in adipose tissue engineering due to their injectability and similarity with natural extracellular matrix. However, to date, no studies have tried applying microgels to adipose tissue regeneration. Herein, based on double-bonded poly(l-glutamic acid)-g-2-hydroxyethyl methacrylate (PLGA-g-HEMA) and maleic anhydride-modified chitosan (MCS), an open porous microgel with high hydrophilicity and great injectability is successfully prepared (microgels diameters of 200-300 μm, pore diameter of 38 μm, and porosity of 88.3%). The storage modulus of 30 mg/mL of the microgel dispersions is 2000 Pa, which is similar to that of the native adipose tissue. The spheroidal stem cell shape and extensive cell-cell connections can be formed in the present microgels to promote adipogenic differentiation and realize adipose tissue regeneration. After injection in vitro, the microgels can maintain high stem cell viability up to 14 days. The extensive Oil red O staining is observed after adipogenic induction for 14 days. After 12 weeks postimplantation, adipose tissues can be regenerated well. Blood vessels are formed in the neogenerated tissues. The degradation rate of microgels roughly matches with the adipose tissue formation rate. The study offers an applicable microgel system to boost the adipose tissue regeneration.
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Affiliation(s)
- Pengfei Xia
- Department of Polymer Materials, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Kunxi Zhang
- Department of Polymer Materials, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Yan Gong
- Department of Polymer Materials, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Guifei Li
- Department of Polymer Materials, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Shifeng Yan
- Department of Polymer Materials, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Jingbo Yin
- Department of Polymer Materials, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
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52
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Baldari S, Di Rocco G, Piccoli M, Pozzobon M, Muraca M, Toietta G. Challenges and Strategies for Improving the Regenerative Effects of Mesenchymal Stromal Cell-Based Therapies. Int J Mol Sci 2017; 18:E2087. [PMID: 28974046 PMCID: PMC5666769 DOI: 10.3390/ijms18102087] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/18/2017] [Accepted: 09/28/2017] [Indexed: 12/11/2022] Open
Abstract
Cell-based therapies have the potential to revolutionize current treatments for diseases with high prevalence and related economic and social burden. Unfortunately, clinical trials have made only modest improvements in restoring normal function to degenerating tissues. This limitation is due, at least in part, to the death of transplanted cells within a few hours after transplant due to a combination of mechanical, cellular, and host factors. In particular, mechanical stress during implantation, extracellular matrix loss upon delivery, nutrient and oxygen deprivation at the recipient site, and host inflammatory response are detrimental factors limiting long-term transplanted cell survival. The beneficial effect of cell therapy for regenerative medicine ultimately depends on the number of administered cells reaching the target tissue, their viability, and their promotion of tissue regeneration. Therefore, strategies aiming at improving viable cell engraftment are crucial for regenerative medicine. Here we review the major factors that hamper successful cell engraftment and the strategies that have been studied to enhance the beneficial effects of cell therapy. Moreover, we provide a perspective on whether mesenchymal stromal cell-derived extracellular vesicle delivery, as a cell-free regenerative approach, may circumvent current cell therapy limitations.
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Affiliation(s)
- Silvia Baldari
- Department of Research, Advanced Diagnostic, and Technological Innovation, Regina Elena National Cancer Institute, via E. Chianesi 53, Rome 00144, Italy.
| | - Giuliana Di Rocco
- Department of Research, Advanced Diagnostic, and Technological Innovation, Regina Elena National Cancer Institute, via E. Chianesi 53, Rome 00144, Italy.
| | - Martina Piccoli
- Stem Cells and Regenerative Medicine Laboratory, Foundation Institute of Pediatric Research "Città della Speranza", corso Stati Uniti 4, Padova 35127, Italy.
| | - Michela Pozzobon
- Department of Women's and Children's Health, University of Padova, Via Giustiniani 3, Padova 35128, Italy.
| | - Maurizio Muraca
- Department of Women's and Children's Health, University of Padova, Via Giustiniani 3, Padova 35128, Italy.
| | - Gabriele Toietta
- Department of Research, Advanced Diagnostic, and Technological Innovation, Regina Elena National Cancer Institute, via E. Chianesi 53, Rome 00144, Italy.
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Lee BNR, Son YS, Lee D, Choi YJ, Kwon SM, Chang HK, Kim PH, Cho JY. Hedgehog-Interacting Protein (HIP) Regulates Apoptosis Evasion and Angiogenic Function of Late Endothelial Progenitor Cells. Sci Rep 2017; 7:12449. [PMID: 28963460 PMCID: PMC5622095 DOI: 10.1038/s41598-017-12571-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 07/14/2017] [Indexed: 11/16/2022] Open
Abstract
Late endothelial progenitor cells (LEPCs) are derived from mononuclear cells (MNCs) and are thought to directly incorporate into blood vessels and differentiate into mature endothelial cells (ECs). Using transcriptome and proteome analysis, we identified distinctive LEPC profiles and found that Hedgehog-interacting protein (HIP) is strongly expressed in LEPCs. Inhibition of HIP by lentiviral knockdown activated canonical hedgehog signaling in LEPCs, while it activated non-canonical hedgehog signaling in ECs. In LEPCs, HIP knockdown induced much enhanced tube formation and resistance to apoptosis under oxidative stress conditions via canonical hedgehog signaling. Although HIP is strongly expressed in proliferating LEPCs, HIP expression is down-regulated during angiogenesis and under oxidative stress condition. Moreover, when LEPCs are treated with angiogenic triggers such as VEGF and FGF2, HIP expression is reduced. Our findings suggest that HIP blocks LEPC angiogenesis and regulate survival when there is no angiogenic stimulation. HIP inhibition in LEPCs enhanced tube formation and reduced apoptosis, resulting in improved angiogenesis.
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Affiliation(s)
- Bom Nae Rin Lee
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, School of Veterinary Medicine, Seoul National University, Seoul, 151-742, Korea
| | - Yeon Sung Son
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, School of Veterinary Medicine, Seoul National University, Seoul, 151-742, Korea
| | - Dabin Lee
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, School of Veterinary Medicine, Seoul National University, Seoul, 151-742, Korea
| | - Young-Jin Choi
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, School of Veterinary Medicine, Seoul National University, Seoul, 151-742, Korea
| | - Sang-Mo Kwon
- Laboratory for Vascular Medicine & Stem Cell Biology, Medical Research Institute, Department of Physiology, School of Medicine, Pusan National University, Yangsan, 626-870, Korea
| | - Hyun-Kyung Chang
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, School of Veterinary Medicine, Seoul National University, Seoul, 151-742, Korea
| | - Pyung-Hwan Kim
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, School of Veterinary Medicine, Seoul National University, Seoul, 151-742, Korea
- Department of Biomedical Laboratory Science, College of Medical Science, Konyang University, Daejeon, 35-365, Korea
| | - Je-Yoel Cho
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, School of Veterinary Medicine, Seoul National University, Seoul, 151-742, Korea.
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Li R, Pang Z, He H, Lee S, Qin J, Wu J, Pang L, Wang J, Yang VC. Drug depot-anchoring hydrogel: A self-assembling scaffold for localized drug release and enhanced stem cell differentiation. J Control Release 2017; 261:234-245. [PMID: 28694033 DOI: 10.1016/j.jconrel.2017.07.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/26/2017] [Accepted: 07/06/2017] [Indexed: 12/30/2022]
Abstract
Localized and long-term delivery of growth factors has been a long-standing challenge for stem cell-based tissue engineering. In the current study, a polymeric drug depot-anchoring hydrogel scaffold was developed for the sustained release of macromolecules to enhance the differentiation of stem cells. Self-assembling peptide (RADA16)-modified drug depots (RDDs) were prepared and anchored to a RADA16 hydrogel. The anchoring effect of RADA16 modification on the RDDs was tested both in vitro and in vivo. It was shown that the in vitro leakage of RDDs from the RADA16 hydrogel was significantly less than that of the unmodified drug depots (DDs). In addition, the in vivo retention of injected hydrogel-incorporated RDDs was significantly longer than that of hydrogel-incorporated unmodified DDs. A model drug, vascular endothelial growth factor (VEGF), was encapsulated in RDDs (V-RDDs) as drug depot that was then anchored to the hydrogel. The release of VEGF could be sustained for 4weeks. Endothelial progenitor cells (EPCs) were cultured on the V-RDDs-anchoring scaffold and enhanced cell proliferation and differentiation were observed, compared with a VEGF-loaded scaffold. Furthermore, this scaffold laden with EPCs promoted neovascularization in an animal model of hind limb ischemia. These results demonstrate that self-assembling hydrogel-anchored drug-loaded RDDs are promising for localized and sustained drug release, and can effectively enhance the proliferation and differentiation of resident stem cells, thus lead to successful tissue regeneration.
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Affiliation(s)
- Ruixiang Li
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, Shanghai 201203, China
| | - Zhiqing Pang
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, Shanghai 201203, China
| | - Huining He
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Seungjin Lee
- College of Pharmacy, Ewha Women's University, Seoul 03760, Republic of Korea
| | - Jing Qin
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, Shanghai 201203, China
| | - Jian Wu
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, Shanghai 201203, China
| | - Liang Pang
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, Shanghai 201203, China
| | - Jianxin Wang
- School of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, Shanghai 201203, China.
| | - Victor C Yang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China; College of Pharmacy, University of Michigan, Ann Arbor, MI 48109-1065, USA.
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55
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Choi M, Park HH, Choi D, Han U, Park TH, Lee H, Park J, Hong J. Multilayer Nanofilms via Inkjet Printing for Stabilizing Growth Factor and Designing Desired Cell Developments. Adv Healthc Mater 2017; 6. [PMID: 28436215 DOI: 10.1002/adhm.201700216] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 03/13/2017] [Indexed: 12/27/2022]
Abstract
Biologically versatile basic fibroblast growth factor (bFGF), well known for roles of signaling molecules between cells and regulating various cellular processes, has been proven to utilize specific functionalities. However, the remarkable functions are inclinable to dwindle with decrease of bFGFs' activity. In nanoscale, developing thin films with intrinsic characteristics of building molecules can facilitate handling various materials for desired purposes. Fabricating nanofilm and handling sensitive materials without detriment to activity via highly productive manufacturing are significant for practical uses in the field of biomedical applications. Herein, a multilayered nanofilm fabricating system is developed by inkjet printing to incorporate bFGF successfully. It is demonstrated that water mixed with glycerol as biological ink maintains stability of bFGFs through simulation and experimental study. With highly stable bFGFs, the proliferation of human dermal fibroblast is enhanced and the undifferentiated state of induced pluripotent stem cell is maintained by the controlled release of bFGF.
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Affiliation(s)
- Moonhyun Choi
- School of Chemical Engineering and Material Science; Chung-Ang University; 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Hee Ho Park
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-744 Republic of Korea
| | - Daheui Choi
- School of Chemical Engineering and Material Science; Chung-Ang University; 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Uiyoung Han
- School of Chemical Engineering and Material Science; Chung-Ang University; 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Tai Hyun Park
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-744 Republic of Korea
| | - Hwankyu Lee
- Department of Chemical Engineering; Dankook University; Yongin-si Gyeonggi-do 448-701 Republic of Korea
| | - Juhyun Park
- Department of Medical Biomaterials Engineering; Kangwon National University; Chuncheon 200-701 Republic of Korea
| | - Jinkee Hong
- School of Chemical Engineering and Material Science; Chung-Ang University; 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
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Koh E, Jung YC, Woo HM, Kang BJ. Injectable alginate-microencapsulated canine adipose tissue-derived mesenchymal stem cells for enhanced viable cell retention. J Vet Med Sci 2017; 79:492-501. [PMID: 28070061 PMCID: PMC5383167 DOI: 10.1292/jvms.16-0456] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The purpose of this study was to establish an optimized protocol for the production of alginate-encapsulated canine adipose-derived mesenchymal stem cells
(cASCs) and evaluate their suitability for clinical use, including viability, proliferation and in vivo cell retention. Alginate microbeads
were formed by vibrational technology and the production of injectable microbeads was performed using various parameters with standard methodology. Microbead
toxicity was tested in an animal model. Encapsulated cASCs were evaluated for viability and proliferation in vitro. HEK-293 cells, with or
without microencapsulation, were injected into the subcutaneous tissue of mice and were tracked using in vivo bioluminescent imaging to
evaluate the retention of transplanted cells. The optimized injectable microbeads were of uniform size and approximately 250 µm in diameter.
There was no strong evidence of in vivo toxicity for the alginate beads. The cells remained viable after encapsulation, and there was evidence
of in vitro proliferation within the microcapsules. In vivo bioluminescent imaging showed that alginate encapsulation improved
the retention of transplanted cells and the encapsulated cells remained viable in vivo for 7 days. Encapsulation enhances the retention of
viable cells in vivo and might represent a potential strategy to increase the therapeutic potency and efficacy of stem cells.
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Affiliation(s)
- Eunji Koh
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Republic of Korea
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57
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Cho HM, Kim PH, Chang HK, Shen YM, Bonsra K, Kang BJ, Yum SY, Kim JH, Lee SY, Choi MC, Kim HH, Jang G, Cho JY. Targeted Genome Engineering to Control VEGF Expression in Human Umbilical Cord Blood-Derived Mesenchymal Stem Cells: Potential Implications for the Treatment of Myocardial Infarction. Stem Cells Transl Med 2017; 6:1040-1051. [PMID: 28186692 PMCID: PMC5442764 DOI: 10.1002/sctm.16-0114] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 08/11/2016] [Accepted: 09/01/2016] [Indexed: 12/19/2022] Open
Abstract
Human umbilical cord blood‐derived mesenchymal stem cells (hUCB‐MSCs) exhibit potency for the regeneration of infarcted hearts. Vascular endothelial growth factor (VEGF) is capable of inducing angiogenesis and can boost stem cell‐based therapeutic effects. However, high levels of VEGF can cause abnormal blood vessel growth and hemangiomas. Thus, a controllable system to induce therapeutic levels of VEGF is required for cell therapy. We generated an inducible VEGF‐secreting stem cell (VEGF/hUCB‐MSC) that controls the expression of VEGF and tested the therapeutic efficacy in rat myocardial infarction (MI) model to apply functional stem cells to MI. To introduce the inducible VEGF gene cassette into a safe harbor site of the hUCB‐MSC chromosome, the transcription activator‐like effector nucleases system was used. After confirming the integration of the cassette into the locus, VEGF secretion in physiological concentration from VEGF/hUCB‐MSCs after doxycycline (Dox) induction was proved in conditioned media. VEGF secretion was detected in mice implanted with VEGF/hUCB‐MSCs grown via a cell sheet system. Vessel formation was induced in mice transplanted with Matrigel containing VEGF/hUCB‐MSCs treated with Dox. Moreover, seeding of the VEGF/hUCB‐MSCs onto the cardiac patch significantly improved the left ventricle ejection fraction and fractional shortening in a rat MI model upon VEGF induction. Induced VEGF/hUCB‐MSC patches significantly decreased the MI size and fibrosis and increased muscle thickness, suggesting improved survival of cardiomyocytes and protection from MI damage. These results suggest that our inducible VEGF‐secreting stem cell system is an effective therapeutic approach for the treatment of MI. Stem Cells Translational Medicine2017;6:1040–1051
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Affiliation(s)
- Hyun-Min Cho
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Pyung-Hwan Kim
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Hyun-Kyung Chang
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Yi-Ming Shen
- Department of Veterinary Pharmacology, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Kwaku Bonsra
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | - Byung-Jae Kang
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Soo-Young Yum
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Joo-Hyun Kim
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - So-Yeong Lee
- Department of Veterinary Pharmacology, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Min-Cheol Choi
- Department of Veterinary Radiology, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Hyongbum Henry Kim
- Department of Pharmacology, College of Medicine, Yonsei University, Seoul, South Korea
| | - Goo Jang
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Je-Yoel Cho
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
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Lin L, Wang T, Zhou Q, Qian N. The effects of different amounts of drug microspheres on the vivo and vitro performance of the PLGA/β-TCP scaffold. Des Monomers Polym 2016; 20:351-362. [PMID: 29491806 PMCID: PMC5784873 DOI: 10.1080/15685551.2016.1259839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/09/2016] [Indexed: 11/03/2022] Open
Abstract
OIC-A006 (BMPs osteogenesis compounds), can stimulate bone marrow mesenchymal stem cells ALP, OPN, OC, Cbfal expression. To stimulate new bone formation in the body. We postulate different amounts of drug microspheres on the PLGA/β-CPT scaffold can produce the effects on performance and sustained release characteristics. In this paper, through adding different amount of carrier drug microsphere, three concentrations scaffolds which are 12.5, 18.75 and 25 μmol/L are prepared by adding different amounts of drug-loaded microspheres. Hereafter called OICM/CPT-200, OICM/CPT-300, OICM/CPT-400. We implant them in rat femur diameter 3 mm depth of 3 mm hole for eight weeks. The degradation, microsphere, delivery properties, with X-ray, micro-CT and histology are tested. Results show that the contain carrier drug microsphere scaffolds become radiopaque, and the gaps between the scaffold and radial cut ends are often invisible. This preliminary study reveals that different carrier drug microsphere has a corresponding effect the performance of stent body, OICM/CPT – 200 scaffolds induction effect is best. Illustrates that the low concentration load OIC-A006 microspheres can promote bone healing, and high concentration of OIC-A006 micro ball is played a inhibitory effect on bone healing process.
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Affiliation(s)
- Liulan Lin
- Rapid Manufacture Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China
| | - Tianjiang Wang
- Rapid Manufacture Engineering Center, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China
| | - Qi Zhou
- Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Niandong Qian
- Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Kim PH, Cho JY. Myocardial tissue engineering using electrospun nanofiber composites. BMB Rep 2016; 49:26-36. [PMID: 26497579 PMCID: PMC4914209 DOI: 10.5483/bmbrep.2016.49.1.165] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Indexed: 01/18/2023] Open
Abstract
Emerging trends for cardiac tissue engineering are focused on increasing the biocompatibility and tissue regeneration ability of artificial heart tissue by incorporating various cell sources and bioactive molecules. Although primary cardiomyocytes can be successfully implanted, clinical applications are restricted due to their low survival rates and poor proliferation. To develop successful cardiovascular tissue regeneration systems, new technologies must be introduced to improve myocardial regeneration. Electrospinning is a simple, versatile technique for fabricating nanofibers. Here, we discuss various biodegradable polymers (natural, synthetic, and combinatorial polymers) that can be used for fiber fabrication. We also describe a series of fiber modification methods that can increase cell survival, proliferation, and migration and provide supporting mechanical properties by mimicking micro-environment structures, such as the extracellular matrix (ECM). In addition, the applications and types of nanofiber-based scaffolds for myocardial regeneration are described. Finally, fusion research methods combined with stem cells and scaffolds to improve biocompatibility are discussed. [BMB Reports 2016; 49(1): 26-36]
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Affiliation(s)
- Pyung-Hwan Kim
- Department of Biomedical Laboratory Science, College of Medical Science, Konyang University, Daejeon 35365, Korea
| | - Je-Yoel Cho
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
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60
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Kim PH, Na SS, Lee B, Kim JH, Cho JY. Stanniocalcin 2 enhances mesenchymal stem cell survival by suppressing oxidative stress. BMB Rep 2016; 48:702-7. [PMID: 26424558 PMCID: PMC4791327 DOI: 10.5483/bmbrep.2015.48.12.158] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Indexed: 01/01/2023] Open
Abstract
To overcome the disadvantages of stem cell-based cell therapy like low cell survival at the disease site, we used stanniocalcin 2 (STC2), a family of secreted glycoprotein hormones that function to inhibit apoptosis and oxidative damage and to induce proliferation. STC2 gene was transfected into two kinds of stem cells to prolong cell survival and protect the cells from the damage by oxidative stress. The stem cells expressing STC2 exhibited increased cell viability and improved cell survival as well as elevated expression of the pluripotency and self-renewal markers (Oct4 and Nanog) under sub-lethal oxidative conditions. Up-regulation of CDK2 and CDK4 and down-regulation of cell cycle inhibitors p16 and p21 were observed after the delivery of STC2. Furthermore, STC2 transduction activated pAKT and pERK 1/2 signal pathways. Taken together, the STC2 can be used to enhance cell survival and maintain long-term stemness in therapeutic use of stem cells. [BMB Reports 2015; 48(12): 702-707]
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Affiliation(s)
- Pyung-Hwan Kim
- Department of Biomedical Laboratory Science, College of Medical Science, Konyang University, Daejeon 35365, Korea; Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Sang-Su Na
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Bomnaerin Lee
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Joo-Hyun Kim
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Je-Yoel Cho
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
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61
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Chang HK, Kim PH, Cho HM, Yum SY, Choi YJ, Son Y, Lee D, Kang I, Kang KS, Jang G, Cho JY. Inducible HGF-secreting Human Umbilical Cord Blood-derived MSCs Produced via TALEN-mediated Genome Editing Promoted Angiogenesis. Mol Ther 2016; 24:1644-54. [PMID: 27434585 PMCID: PMC5113099 DOI: 10.1038/mt.2016.120] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 06/02/2016] [Indexed: 02/07/2023] Open
Abstract
Mesenchymal stem cells (MSCs) promote therapeutic angiogenesis to cure serious vascular disorders. However, their survival period and cytokine-secretory capacity are limited. Although hepatocyte growth factor (HGF) can accelerate the rate of angiogenesis, recombinant HGF is limited because of its very short half-life (<3–5 minutes). Thus, continuous treatment with HGF is required to obtain an effective therapeutic response. To overcome these limitations, we produced genome-edited MSCs that secreted HGF upon drug-specific induction. The inducible HGF expression cassette was integrated into a safe harbor site in an MSC chromosome using the TALEN system, resulting in the production of TetOn-HGF/human umbilical cord blood-derived (hUCB)-MSCs. Functional assessment of the TetOn-HGF/hUCB-MSCs showed that they had enhanced mobility upon the induction of HGF expression. Moreover, long-term exposure by doxycycline (Dox)-treated TetOn-HGF/hUCB-MSCs enhanced the anti-apoptotic responses of genome-edited MSCs subjected to oxidative stress and improved the tube-formation ability. Furthermore, TetOn-HGF/hUCB-MSCs encapsulated by arginine-glycine-aspartic acid (RGD)-alginate microgel induced to express HGF improved in vivo angiogenesis in a mouse hindlimb ischemia model. This study showed that the inducible HGF-expressing hUCB-MSCs are competent to continuously express and secrete HGF in a controlled manner. Thus, the MSCs that express HGF in an inducible manner are a useful therapeutic modality for the treatment of vascular diseases requiring angiogenesis.
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Affiliation(s)
- Hyun-Kyung Chang
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Pyung-Hwan Kim
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea.,Current address: Department of Biomedical Laboratory Science, College of Medical Science, Konyang University, Daejeon, South Korea
| | - Hyun-Min Cho
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Soo-Young Yum
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Young-Jin Choi
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - YeonSung Son
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - DaBin Lee
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - InSung Kang
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Kyung-Sun Kang
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Goo Jang
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Je-Yoel Cho
- Department of Biochemistry, BK21 PLUS Program for Creative Veterinary Science Research and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
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62
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Slater SC, Carrabba M, Madeddu P. Vascular stem cells-potential for clinical application. Br Med Bull 2016; 118:127-37. [PMID: 27298231 PMCID: PMC5127425 DOI: 10.1093/bmb/ldw017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/28/2016] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Cell therapy is a growing area of research as an alternative to pharmaceuticals or surgery for the treatment of ischaemic disease. Studies are focusing on delivering tissue-derived cells into damaged organs to promote vascular regeneration or gain of function. SOURCES OF DATA Pubmed, clinicaltrials.gov, BHF website. AREAS OF AGREEMENT Stem cells have the potential to become a viable treatment for many diseases, as indicated by the numerous pre-clinical studies demonstrating therapeutic benefit. AREAS OF CONTROVERSY The mechanisms of action for transplanted stem cells are still open to debate. Proposed mechanism includes direct cell incorporation and paracrine action. Additionally, the secretome produced by transplanted cells remains largely unknown. GROWING POINTS Initial studies focused on delivering stem cells by injection; however, current research is utilizing biomaterials to target cell delivery to specific areas. AREAS TIMELY FOR DEVELOPING RESEARCH Whilst stem cell research in the laboratory is expanding rapidly, transition into clinical studies is hindered by the availability of equivalent clinical grade reagents.
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Affiliation(s)
- Sadie C Slater
- Division of Experimental Cardiovascular Medicine, School of Clinical Sciences, Bristol Heart Institute, University of Bristol, Research Floor Level 7, Bristol Royal Infirmary, Upper Maudlin Street, Bristol BS2 8HW, UK
| | - Michele Carrabba
- Division of Experimental Cardiovascular Medicine, School of Clinical Sciences, Bristol Heart Institute, University of Bristol, Research Floor Level 7, Bristol Royal Infirmary, Upper Maudlin Street, Bristol BS2 8HW, UK
| | - Paolo Madeddu
- Division of Experimental Cardiovascular Medicine, School of Clinical Sciences, Bristol Heart Institute, University of Bristol, Research Floor Level 7, Bristol Royal Infirmary, Upper Maudlin Street, Bristol BS2 8HW, UK
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63
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Tasev D, Koolwijk P, van Hinsbergh VWM. Therapeutic Potential of Human-Derived Endothelial Colony-Forming Cells in Animal Models. TISSUE ENGINEERING PART B-REVIEWS 2016; 22:371-382. [PMID: 27032435 DOI: 10.1089/ten.teb.2016.0050] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW Tissue regeneration requires proper vascularization. In vivo studies identified that the endothelial colony-forming cells (ECFCs), a subtype of endothelial progenitor cells that can be isolated from umbilical cord or peripheral blood, represent a promising cell source for therapeutic neovascularization. ECFCs not only are able to initiate and facilitate neovascularization in diseased tissue but also can, by acting in a paracrine manner, contribute to the creation of favorable conditions for efficient and appropriate differentiation of tissue-resident stem or progenitor cells. This review outlines the progress in the field of in vivo regenerative and tissue engineering studies and surveys why, when, and how ECFCs can be used for tissue regeneration. RECENT FINDINGS Reviewed literature that regard human-derived ECFCs in xenogeneic animal models implicates that ECFCs should be considered as an endothelial cell source of preference for induction of neovascularization. Their neovascularization and regenerative potential is augmented in combination with other types of stem or progenitor cells. Biocompatible scaffolds prevascularized with ECFCs interconnect faster and better with the host vasculature. The physical incorporation of ECFCs in newly formed blood vessels grants prolonged release of trophic factors of interest, which also makes ECFCs an interesting cell source candidate for gene therapy and delivery of bioactive compounds in targeted area. SUMMARY ECFCs possess all biological features to be considered as a cell source of preference for tissue engineering and repair of blood supply. Investigation of regenerative potential of ECFCs in autologous settings in large animal models before clinical application is the next step to clearly outline the most efficient strategy for using ECFCs as treatment.
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Affiliation(s)
- Dimitar Tasev
- 1 Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center Amsterdam , Amsterdam, The Netherlands .,2 A-Skin Nederland BV , Amsterdam, The Netherlands
| | - Pieter Koolwijk
- 1 Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center Amsterdam , Amsterdam, The Netherlands
| | - Victor W M van Hinsbergh
- 1 Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center Amsterdam , Amsterdam, The Netherlands
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64
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Methods for Generating Hydrogel Particles for Protein Delivery. Ann Biomed Eng 2016; 44:1946-58. [PMID: 27160672 DOI: 10.1007/s10439-016-1637-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 05/03/2016] [Indexed: 10/21/2022]
Abstract
Proteins represent a major class of therapeutic molecules with vast potential for the treatment of acute and chronic diseases and regenerative medicine applications. Hydrogels have long been investigated for their potential in carrying and delivering proteins. As compared to bulk hydrogels, hydrogel microparticles (microgels) hold promise in improving aspects of delivery owing to their less traumatic route of entry into the body and improved versatility. This review discusses common methods of fabricating microgels, including emulsion polymerization, microfluidic techniques, and lithographic techniques. Microgels synthesized from both natural and synthetic polymers are discussed, as are a series of microgels fashioned from environment-responsive materials.
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65
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Endothelial differentiation of canine yolk sac cells transduced with VEGF. Res Vet Sci 2015; 104:71-6. [PMID: 26850540 DOI: 10.1016/j.rvsc.2015.11.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 11/17/2015] [Accepted: 11/29/2015] [Indexed: 01/27/2023]
Abstract
Yolk sac (YS) is the site of blood-cell production where primitive erythroid cells originate and complete their maturation. YS is a source of precursor cells, however its differentiation potential and suitability for cell therapies are not well described. YS can be a cell source when neovascularization is required. This study characterized YS canine cells, transduced with VEGF, to analyze then using Immunocytochemistry, flow cytometry and real time PCR. Immunocytochemistry: positive expression for CD105, PCNA, VEGF and vWF, flow cytometry for CD105, VEGF, PCNA, OCT-4 and RT-qPCR for VEGF, CD31, CD105, PCNA and FLT - 1, indicating that these cells have characteristics of endothelial progenitor and pluripotency. After transduction, the YS cells changed their morphology and showed endothelial-like cells. We suggest, because of their cell surface phenotype as well as their capacity to differentiate into endothelial-like cells, that canine YS represents a source of cells for neovascularization therapies.
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66
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Cell encapsulation: technical and clinical advances. Trends Pharmacol Sci 2015; 36:537-46. [DOI: 10.1016/j.tips.2015.05.003] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 05/13/2015] [Accepted: 05/14/2015] [Indexed: 01/18/2023]
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Lehmann R, Gallert C, Roddelkopf T, Junginger S, Thurow K. Biomek Cell Workstation: A Flexible System for Automated 3D Cell Cultivation. ACTA ACUST UNITED AC 2015. [PMID: 26203054 DOI: 10.1177/2211068215594580] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The shift from 2D cultures to 3D cultures enables improvement in cell culture research due to better mimicking of in vivo cell behavior and environmental conditions. Different cell lines and applications require altered 3D constructs. The automation of the manufacturing and screening processes can advance the charge stability, quality, repeatability, and precision. In this study we integrated the automated production of three 3D cell constructs (alginate beads, spheroid cultures, pellet cultures) using the Biomek Cell Workstation and compared them with the traditional manual methods and their consequent bioscreening processes (proliferation, toxicity; days 14 and 35) using a high-throughput screening system. Moreover, the possible influence of antibiotics (penicillin/streptomycin) on the production and screening processes was investigated. The cytotoxicity of automatically produced 3D cell cultures (with and without antibiotics) was mainly decreased. The proliferation showed mainly similar or increased results for the automatically produced 3D constructs. We concluded that the traditional manual methods can be replaced by the automated processes. Furthermore, the formation, cultivation, and screenings can be performed without antibiotics to prevent possible effects.
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Affiliation(s)
- R Lehmann
- Center for Life Science Automation (celisca), University of Rostock, Rostock, Germany
| | - C Gallert
- Center for Life Science Automation (celisca), University of Rostock, Rostock, Germany
| | - T Roddelkopf
- Center for Life Science Automation (celisca), University of Rostock, Rostock, Germany
| | - S Junginger
- Institute of Automation, University of Rostock, Rostock, Germany
| | - K Thurow
- Center for Life Science Automation (celisca), University of Rostock, Rostock, Germany
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68
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Ren X, Feng Y, Guo J, Wang H, Li Q, Yang J, Hao X, Lv J, Ma N, Li W. Surface modification and endothelialization of biomaterials as potential scaffolds for vascular tissue engineering applications. Chem Soc Rev 2015; 44:5680-742. [DOI: 10.1039/c4cs00483c] [Citation(s) in RCA: 359] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the recent developments of surface modification and endothelialization of biomaterials in vascular tissue engineering applications.
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Affiliation(s)
- Xiangkui Ren
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Yakai Feng
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Jintang Guo
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Haixia Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Qian Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jing Yang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Xuefang Hao
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Juan Lv
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Nan Ma
- Institute of Chemistry and Biochemistry
- Free University of Berlin
- D-14195 Berlin
- Germany
| | - Wenzhong Li
- Department of Cardiac Surgery
- University of Rostock
- D-18057 Rostock
- Germany
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69
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Paciello A, Santonicola MG. Supramolecular polycationic hydrogels with high swelling capacity prepared by partial methacrylation of polyethyleneimine. RSC Adv 2015. [DOI: 10.1039/c5ra16576h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Partial methacrylation of polyethyleneimine leads to novel highly hydrophilic supramolecular hydrogels that absorb and retain up to 95% of water.
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Affiliation(s)
- Antonio Paciello
- Center for Advanced Biomaterials for Healthcare
- Istituto Italiano di Tecnologia
- 80125 Naples
- Italy
- Interdisciplinary Research Centre on Biomaterials (CRIB)
| | - M. Gabriella Santonicola
- Department of Chemical Materials and Environmental Engineering
- Sapienza University of Rome
- 00161 Rome
- Italy
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