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Ahmadpour F, Salim MM, Esmailinejad MR, Razei A, Talebi S, Rasouli HR. Comparison of the effects of human fetal umbilical cord-derived hyaluronic acid and fibroblast-derived exosomes on wound healing in rats. Burns 2023; 49:1983-1989. [PMID: 37357060 DOI: 10.1016/j.burns.2023.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/19/2023] [Accepted: 05/06/2023] [Indexed: 06/27/2023]
Abstract
INTRODUCTION Exosomes and hyaluronic acid influence tissue regeneration and may be used as an alternative to more conventional wound treatment methods. This study compared how well hyaluronic acid from the human umbilical cord and exosomes from fibroblast cells heal burn wounds in a preclinical model. METHODS Ninety-six male Westar rats were used and allocated into four groups: The treatment group received 10% hyaluronic acid (HA); the treatment group received 300 l of exosome solution (EX); the treatment group received phenytoin (PC); the negative control group received no treatment (NC). The wound healing process was evaluated after 3, 6, 9, and 12 days. Histopathological analysis was done on the skin biopsy taken from the wounds. Re-epithelialization, inflammatory cells (PMNs), lymphocytes (LYMs), granulation tissue, collagen maturation (fibrosis), and eschar formation parameters were assessed for histopathological evaluation. On a scale from 0 to 4, each parameter received a score. RESULTS Compared to the PC and NC groups, the median score for re-epithelialization was greater in the HA and EX groups (P < 0.05). At three days, PMN abundance distinguished the PC and NC groups from the HA and EX groups (P < 0.01). Compared to the PC and NC groups, the HA and EX groups had a lower median LYM score (P < 0.01). We found no statistical difference between the four groups for granulation tissue and fibrosis (P > 0.05). The EX group had a lower average score for eschar formation than the PC, NC, and HA groups (P < 0.01). The HA and EX groups demonstrated faster healing in the clinical and microscopic examinations than the NC and PC groups. CONCLUSION The results showed that hyaluronic acid and exosomes improved wound healing. Also, the study demonstrated that hyaluronic acid has better effects in the re-epithelization. The exosome was more effective than HA in eschar formation. Both compounds were more influential in the PMNs and LYMs parameters than other groups. The combination of both compounds should be assessed further to achieve better therapeutic effects on wound healing.
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Affiliation(s)
- Fathollah Ahmadpour
- Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Reza Esmailinejad
- Molecular Biology Research Center, System Biology and Poising Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ali Razei
- Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Samira Talebi
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Hamid Reza Rasouli
- Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Hyaluronic acid hydrogels crosslinked via blue light-induced thiol-ene reaction for the treatment of rat corneal alkali burn. Regen Ther 2022; 20:51-60. [PMID: 35402662 PMCID: PMC8971597 DOI: 10.1016/j.reth.2022.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/23/2022] [Accepted: 03/08/2022] [Indexed: 02/05/2023] Open
Abstract
To assess corneal inflammation from alkali chemical burns, we examined the therapeutic effects of in situ-forming hyaluronic acid (HA) hydrogels crosslinked via blue light-induced thiol-ene reaction on a rat corneal alkali burn model. Animals were divided into three groups (n = 7 rats per group): untreated, treated with 0.1% HA eye drops, and treated with crosslinked HA hydrogels. Crosslinking of HA hydrogel followed by the administration of HA eye drops and crosslinked HA hydrogels were carried out once a day from days 0–4. Corneal re-epithelialization, opacity, neovascularization, thickness, and histology were evaluated to compare the therapeutic effects of the three groups. Further investigation was conducted on the transparency of HA hydrogels to acquire the practical capabilities of hydrogel as a reservoir for drug delivery. Compared to untreated animals, animals treated with crosslinked HA hydrogels exhibited greater corneal re-epithelialization on days 1, 2, 4, and 7 post-injury (p = 0.004, p = 0.007, p = 0.008, and p = 0.034, respectively) and the least corneal neovascularization (p = 0.008). Histological analysis revealed lower infiltration of stromal inflammatory cells and compact collagen structure in crosslinked HA hydrogel-treated animals than in untreated animals. These findings corresponded with immunohistochemical analyses indicating that the expression of inflammatory markers such as α-SMA, MMP9, and IL1-β was lower in animals treated with crosslinked HA hydrogels than untreated animals and animals treated only with 0.1% HA eye drops. With beneficial pharmacological effects such as re-epithelization and anti-inflammation, in situ-forming hyaluronic acid (HA) hydrogels may be a promising approach to effective drug delivery in cases of corneal burn injuries. Corneal chemical injuries can induce corneal opacification, limbal ischemia, and loss of vision. Limitations for using topical eye drops includes maintaining the optimal concentration of the drug on the ocular surface. Crosslinked HA hydrogels achieved rapid corneal re-epithelialization and low-grade neovascularization after chemical injury.
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Zhou L, Guan J, Wang L, Li X, Pan Z. Germinal peptide eye drop promotes corneal epithelial and stromal defect healing in rabbit model. Semin Ophthalmol 2022; 37:643-650. [PMID: 35389769 DOI: 10.1080/08820538.2022.2053726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Corneal defect is a common disease in ophthalmology caused by trauma, inflammation, drug toxicity, or surgery. To investigate the effect of germinal peptide eye drop on corneal epithelial and stromal defects after lamellar keratectomy in rabbit model. METHODS Eighty-five male New Zealand white rabbits were divided into five groups: Germinal Peptide eye drop at three different concentration groups, normal saline (negative control group), recombinant human epidermal growth factor (rh-EGF) eye drop (positive control group). Corneal epithelial and stromal defects of around 150-200 μm in depth were created with an 8 mm diameter trephine in the center of the right eyes of all animals. RESULTS Germinal peptide eye drop with the concentration of 0.001%, 0.002%, and 0.004% and rh-EGF eye drop were more effective in promoting healing, reducing opacity, and edema during the process of corneal epithelial and stromal defect regeneration compared with 0.9% normal saline. No significant difference was observed among the three different doses of germinal peptide eye drop. Compared with the saline control group, the structures of the regenerated corneas were more orderly and less inflammatory cell infiltration was observed in the germinal peptide eye drop groups and the rh-EGF eye drop group. CONCLUSION Germinal peptide eye drop (0.001%, 0.002%, and 0.004%) can significantly stimulate the regeneration of corneal epithelia and stroma and reduce corneal opacity and edema. Dose dependency was not observed in the current study.
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Affiliation(s)
- Lijia Zhou
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, FI, China
| | - Jieying Guan
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, FI, China
| | - Li Wang
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, FI, China
| | - Xiaoyi Li
- Department of Medicine, Zhaoke (Guangzhou) Ophthalmology Pharmaceutical Ltd, Guangzhou, FI, China
| | - Zhiqiang Pan
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, FI, China
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4
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Acera A, Abad B, Pereiro X, Rodríguez FD, Ruzafa N, Duran JA, Vecino E. Comparative study of the lipid profile of tears and plasma enriched in growth factors. Exp Eye Res 2022; 219:109061. [DOI: 10.1016/j.exer.2022.109061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/19/2022] [Accepted: 03/30/2022] [Indexed: 01/05/2023]
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5
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Prospects and Applications of Natural Blood-Derived Products in Regenerative Medicine. Int J Mol Sci 2021; 23:ijms23010472. [PMID: 35008900 PMCID: PMC8745602 DOI: 10.3390/ijms23010472] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/21/2021] [Accepted: 12/28/2021] [Indexed: 12/16/2022] Open
Abstract
Currently, there are a number of therapeutic schemes used for the treatment of various types of musculoskeletal disorders. However, despite the use of new treatment options, therapeutic failure remains common due to impaired and delayed healing, or implant rejection. Faced with this challenge, in recent years regenerative medicine started looking for alternative solutions that could additionally support tissue regeneration. This review aims to outline the functions and possible clinical applications of, and future hopes associated with, using autologous or heterologous products such as antimicrobial peptides (AMPs), microvesicles (MVs), and neutrophil degranulation products (DGP) obtained from circulating neutrophils. Moreover, different interactions between neutrophils and platelets are described. Certain products released from neutrophils are critical for interactions between different immune cells to ensure adequate tissue repair. By acting directly and indirectly on host cells, these neutrophil-derived products can modulate the body’s inflammatory responses in various ways. The development of new formulations based on these products and their clinically proven success would give hope for significant progress in regenerative therapy in human and veterinary medicine.
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Mijanović O, Pylaev T, Nikitkina A, Artyukhova M, Branković A, Peshkova M, Bikmulina P, Turk B, Bolevich S, Avetisov S, Timashev P. Tissue Engineering Meets Nanotechnology: Molecular Mechanism Modulations in Cornea Regeneration. MICROMACHINES 2021; 12:mi12111336. [PMID: 34832752 PMCID: PMC8618371 DOI: 10.3390/mi12111336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 09/23/2021] [Accepted: 10/14/2021] [Indexed: 12/13/2022]
Abstract
Nowadays, tissue engineering is one of the most promising approaches for the regeneration of various tissues and organs, including the cornea. However, the inability of biomaterial scaffolds to successfully integrate into the environment of surrounding tissues is one of the main challenges that sufficiently limits the restoration of damaged corneal tissues. Thus, the modulation of molecular and cellular mechanisms is important and necessary for successful graft integration and long-term survival. The dynamics of molecular interactions affecting the site of injury will determine the corneal transplantation efficacy and the post-surgery clinical outcome. The interactions between biomaterial surfaces, cells and their microenvironment can regulate cell behavior and alter their physiology and signaling pathways. Nanotechnology is an advantageous tool for the current understanding, coordination, and directed regulation of molecular cell-transplant interactions on behalf of the healing of corneal wounds. Therefore, the use of various nanotechnological strategies will provide new solutions to the problem of corneal allograft rejection, by modulating and regulating host-graft interaction dynamics towards proper integration and long-term functionality of the transplant.
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Affiliation(s)
- Olja Mijanović
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- Correspondence:
| | - Timofey Pylaev
- Saratov Medical State University N.A. V.I. Razumovsky, 112 Bolshaya Kazachya St., 410012 Saratov, Russia;
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, 410049 Saratov, Russia
| | - Angelina Nikitkina
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
| | - Margarita Artyukhova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
| | - Ana Branković
- Department of Forensic Engineering, University of Criminal Investigation and Police Studies, 196 Cara Dušana St., Belgrade 11000, Serbia;
| | - Maria Peshkova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia
| | - Polina Bikmulina
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia
| | - Boris Turk
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- Department of Biochemistry and Molecular and Structural Biology, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Sergey Bolevich
- Department of Human Pathology, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia;
| | - Sergei Avetisov
- Department of Eye Diseases, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia;
- Research Institute of Eye Diseases, 11 Rossolimo St., 119021 Moscow, Russia
| | - Peter Timashev
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia
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Anitua E, de la Sen-Corcuera B, Orive G, Sánchez-Ávila RM, Heredia P, Muruzabal F, Merayo-Lloves J. Progress in the use of plasma rich in growth factors in ophthalmology: from ocular surface to ocular fundus. Expert Opin Biol Ther 2021; 22:31-45. [PMID: 34275392 DOI: 10.1080/14712598.2021.1945030] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: The use of blood derivatives and especially Plasma rich in growth factors (PRGF), for regenerative purposes has been a common trend along the last decades in the field of oral surgery, dermatology, orthopedics, and more recently in ophthalmology.Areas covered: PRGF is a type of platelet-rich plasma that is being explored for the treatment of ocular injuries. The present review article highlights 50 ophthalmology-related publications about the application of PRGF in the treatment of acute and chronic pathologies in ophthalmology as well as most relevant challenges and future prospects.Expert opinion: PRGF technology provides a wide range of formulations that can be used therapeutically in many different acute and chronic ocular pathologies. In addition to eye drops enriched with autologous growth factors, PRGF enables the preparation of both immunologically safe and fibrin-based formulations. Recent advances in the field have promoted PRGF storage for 12 months under freezing conditions, its daily use for 7 days at room temperature and the freeze-dried formulation. The thermally treated immunosafe formulation has shown promising clinical results for the treatment of several diseases such as Sjögren syndrome, graft versus host disease or cicatrizing conjunctivitis. In addition, several fibrin formulations have been preclinically evaluated and clinically incorporated as an adjuvant to ocular surface or glaucoma surgeries, dermal fat graft procedures, limbal stem cell expansion and retinal surgeries. The present review explores the latest scientific and clinical data, current challenges, and main prospects of this technology for the treatment of several ocular injuries.
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Affiliation(s)
- E Anitua
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - B de la Sen-Corcuera
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - G Orive
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain.,NanoBioCel Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Oviedo, Vitoria-Gasteiz, Spain
| | - R M Sánchez-Ávila
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain
| | - P Heredia
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - F Muruzabal
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - J Merayo-Lloves
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Spain
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An X, Wang G, Jin M, Zhou X, Gao S, Chen J, Reinach PS, Liu Z, Xue Y, Li C. Novel Cell Culture Paradigm Prolongs Mouse Corneal Epithelial Cell Proliferative Activity in vitro and in vivo. Front Cell Dev Biol 2021; 9:675998. [PMID: 34277619 PMCID: PMC8278007 DOI: 10.3389/fcell.2021.675998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/07/2021] [Indexed: 12/13/2022] Open
Abstract
It has been a long-standing challenge to obtain from cell cultures adequate amounts of mouse corneal epithelial cells (mCEC) to perform transplantation surgery. This limitation is attributable to the passage dependent declines in their proliferative activity. We describe here development of a novel 6C medium that contains six different modulators of different signaling pathways, which control proliferative mCEC activity. Its usage shortens the time and effort required to obtain epithelial sheets for hastening healing of an epithelial wound in an experimental animal model. This serum-free 6C medium contains:Y27632, forskolin, SB431542, DAPT, IWP-2, LDN-193189 and also DermaLife K keratinocyte calcium. Their inclusion inhibits rises in four specific markers of epithelial mesenchymal transdifferentiation:ZEB1/2, Snail, β-catenin and α-SMA. This medium is applied in a feeder-free air-lifted system to obtain sufficient populations of epithelial progenitor cells whose procurement is facilitated due to suppression of progenitor epithelial cell transdifferentiation into epithelial-mesenchymal cells. Diminution of this decline in transdifferentiation was confirmed based on the invariance of P63, K14, Pax6, and K12 gene expression levels. This cell culture technique is expected to facilitate ex vivo characterization of mechanisms underlying cell fate determination. Furthermore, its implementation will improve yields of progenitor mouse corneal epithelial cells, which increases the likelihood of using these cells as a source to generate epithelial sheets for performing transplantation surgery to treat limbal stem cell deficiency in a clinical setting. In addition, the novel insight obtainable from such studies is expected to improve the outcomes of corneal regenerative medicine.
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Affiliation(s)
- Xiaoya An
- Eye Institute & Affiliated Xiamen Eye Center, School of Pharmaceutical Sciences, School of Medicine, Xiamen University, Xiamen, China
| | - Guoliang Wang
- Eye Institute & Affiliated Xiamen Eye Center, School of Pharmaceutical Sciences, School of Medicine, Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Fujian Engineering and Research Center of Eye Regenerative Medicine, Xiamen, China
| | - Mengyi Jin
- Eye Institute & Affiliated Xiamen Eye Center, School of Pharmaceutical Sciences, School of Medicine, Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Fujian Engineering and Research Center of Eye Regenerative Medicine, Xiamen, China
| | - Xiaoping Zhou
- Eye Institute & Affiliated Xiamen Eye Center, School of Pharmaceutical Sciences, School of Medicine, Xiamen University, Xiamen, China
| | - Shubin Gao
- Eye Institute & Affiliated Xiamen Eye Center, School of Pharmaceutical Sciences, School of Medicine, Xiamen University, Xiamen, China
| | - Jingyao Chen
- Yan'An Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Peter S Reinach
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Zuguo Liu
- Eye Institute & Affiliated Xiamen Eye Center, School of Pharmaceutical Sciences, School of Medicine, Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Fujian Engineering and Research Center of Eye Regenerative Medicine, Xiamen, China
| | - Yuhua Xue
- Eye Institute & Affiliated Xiamen Eye Center, School of Pharmaceutical Sciences, School of Medicine, Xiamen University, Xiamen, China
| | - Cheng Li
- Eye Institute & Affiliated Xiamen Eye Center, School of Pharmaceutical Sciences, School of Medicine, Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Fujian Engineering and Research Center of Eye Regenerative Medicine, Xiamen, China
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9
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Plasma Rich in Growth Factors Promotes Autophagy in ARPE19 Cells in Response to Oxidative Stress Induced by Blue Light. Biomolecules 2021; 11:biom11070954. [PMID: 34203504 PMCID: PMC8301887 DOI: 10.3390/biom11070954] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 12/15/2022] Open
Abstract
Age-related macular degeneration (AMD) causes the degeneration of photoreceptors and retinal cells leading to vision loss in older subjects. Among possible exogenous risk factors, it has been recently proposed that long-term exposure to blue light could aggravate the course of AMD. In the search for therapeutic options, plasma rich in growth factors (PRGF) has been shown to enhance cell antioxidant pathways and protect photoreceptors against the harm produced by blue light, although its mechanism of action remains unknown. One possible mechanism, autophagy, is one of the most conservative cell renewal systems used in eukaryotes to destroy cellular components that have been damaged by some kind of insult. The oxidative stress of exposure to blue light is known to induce cell autophagy. In this study, we examined the combined effects on autophagy of blue light and PRGF in a retinal cell line, ARPE19. In response to treatment with both PRGF and blue light, we detected the modulated expression of autophagy markers such as NF-kB, p62/sqstm1, Atg5, LC3 and Beclin1, and inflammatory markers such as IL1B and IL18. Our findings suggest that PRGF promotes cell autophagy in response to exposure to blue light.
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Saccu G, Menchise V, Giordano C, Delli Castelli D, Dastrù W, Pellicano R, Tolosano E, Van Pham P, Altruda F, Fagoonee S. Regenerative Approaches and Future Trends for the Treatment of Corneal Burn Injuries. J Clin Med 2021; 10:jcm10020317. [PMID: 33467167 PMCID: PMC7830803 DOI: 10.3390/jcm10020317] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 12/13/2022] Open
Abstract
Ocular chemical and thermal burns are frequent causes of hospitalization and require immediate interventions and care. Various surgical and pharmacological treatment strategies are employed according to damage severity. Controlling inflammation and neovascularization while promoting normal ocular surface anatomy and function restoration is the principal aim. In the most severe cases, when epithelial healing is severely affected, reconstruction of the ocular surface may be a valid option, which, however, requires expertise, adequate instruments, and qualified donors. Numerous endogenous and exogenous strategies have been considered for corneal repair. Among these, stem cells and their derivatives have offered numerous attractive possibilities in finding an effective way in stimulating corneal regeneration. Limbal epithelial stem cells and mesenchymal cells from the ocular tissue as well as from various sources have demonstrated their effectiveness in dampening neovascularization, scarring, and inflammation, while promoting epithelialization of the injured cornea. Moreover, a plethora of cytokines and growth factors, and extracellular vesicles, which constitute the secretome of these cells, work in concert to enhance wound healing. In this review, we provide an update on the recent potential therapeutic avenues and clinical applications of stem cells and their products in corneal regeneration after burn injury, as well as current imaging strategies for monitoring therapeutic efficacy and damage resolution.
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Affiliation(s)
- Gabriele Saccu
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy; (G.S.); (D.D.C.); (W.D.); (E.T.)
| | - Valeria Menchise
- Institute of Biostructure and Bioimaging, National Research Council, Molecular Biotechnology Center, 10126 Turin, Italy
- Correspondence: (V.M.); (F.A.); (S.F.); Tel.: +39-0116706423 (S.F.)
| | - Cristina Giordano
- Ophthalmology Veterinary Practice, c.so Galileo Ferraris 121, 10126 Turin, Italy;
| | - Daniela Delli Castelli
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy; (G.S.); (D.D.C.); (W.D.); (E.T.)
| | - Walter Dastrù
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy; (G.S.); (D.D.C.); (W.D.); (E.T.)
| | | | - Emanuela Tolosano
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy; (G.S.); (D.D.C.); (W.D.); (E.T.)
| | - Phuc Van Pham
- Laboratory of Stem Cell Research and Application, and Stem Cell Institute, VNUHCM University of Science, Ho Chi Minh City 08000, Vietnam;
| | - Fiorella Altruda
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy; (G.S.); (D.D.C.); (W.D.); (E.T.)
- Correspondence: (V.M.); (F.A.); (S.F.); Tel.: +39-0116706423 (S.F.)
| | - Sharmila Fagoonee
- Institute of Biostructure and Bioimaging, National Research Council, Molecular Biotechnology Center, 10126 Turin, Italy
- Correspondence: (V.M.); (F.A.); (S.F.); Tel.: +39-0116706423 (S.F.)
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Pornpitchanarong C, Rojanarata T, Opanasopit P, Ngawhirunpat T, Patrojanasophon P. Catechol-modified chitosan/hyaluronic acid nanoparticles as a new avenue for local delivery of doxorubicin to oral cancer cells. Colloids Surf B Biointerfaces 2020; 196:111279. [DOI: 10.1016/j.colsurfb.2020.111279] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/23/2020] [Accepted: 07/25/2020] [Indexed: 12/31/2022]
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12
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Plasma Rich in Growth Factors Enhances Cell Survival after in Situ Retinal Degeneration. Int J Mol Sci 2020; 21:ijms21207442. [PMID: 33050198 PMCID: PMC7590176 DOI: 10.3390/ijms21207442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/24/2020] [Accepted: 10/08/2020] [Indexed: 01/21/2023] Open
Abstract
PURPOSE The purpose of this study was to examine the effect of plasma rich in growth factors (PRGFs) under blue light conditions in an in vivo model of retinal degeneration. METHODS Male Wistar rats were exposed to dark/blue light conditions for 9 days. On day 7, right eyes were injected with saline and left eyes with PRGF. Electroretinography (ERG) and intraocular pressure (IoP) measurements were performed before and after the experiment. After sacrifice, retinal samples were collected. Hematoxylin and eosin staining was performed to analyze the structure of retinal sections. Immunofluorescence for brain-specific homeobox/POU domain protein 3A (Brn3a), choline acetyltransferase (ChAT), rhodopsin, heme oxygenase-1 (HO-1), and glial fibrillary acidic protein (GFAP) was performed to study the retinal conditions. RESULTS Retinal signaling measured by ERG was reduced by blue light and recovered with PRGF; however, IoP measurements did not show significant differences among treatments. Blue light reduced the expression for Brn3a, ChAT, and rhodopsin. Treatment with PRGF showed a recovery in their expressions. HO-1 and GFAP results showed that blue light increased their expression but the use of PRGF reduced the effect of light. CONCLUSIONS Blue light causes retinal degeneration. PRGF mitigated the injury, restoring the functionality of these cells and maintaining the tissue integrity.
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Wei X, Du L, Sun L, Wang C, Song F, Qian H, Li X, Guo X, Tang X, Liu P. Kojic acid enhances the proliferation of human corneal epithelial cells via p38 and p21 signaling pathways. Eur J Ophthalmol 2020; 31:2287-2293. [PMID: 33008277 DOI: 10.1177/1120672120962065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
PURPOSE Treatment of corneal injury depends on the self-proliferation ability of human corneal epithelial cells (HCEp). Our previous study revealed kojic acid had the anti-senescence function on human corneal endothelial cells. In this study, we researched the enhancive proliferation effect of kojic acid in HCEp. METHODS Cell viability was evaluated by MTT assay. The expression of proliferation-related protein was detected by western blotting and immunofluorescence assay. RESULTS Kojic acid could enhance HCEp proliferation, characterized by promoting cell proliferation rate, decreasing the expression levels of p21, galectin 8 and ki67, and increasing that of p-p38. The p38 signaling pathway inhibitor, SB203580, could reverse the enhancive proliferation function of kojic acid. Furthermore, knockdown of p21 had similar enhancive proliferation effect to kojic acid. CONCLUSION Kojic acid might enhance HCEp proliferation through p38 and p21 signaling pathways, potentially via reduced expression levels of galectin 8 and ki67. Hence, kojic acid might be a potential drug to accelerate the healing of corneal epithelial injury.
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Affiliation(s)
- Xi Wei
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, China.,Academician Workstation, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Lingling Du
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Liyao Sun
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, China.,Academician Workstation, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Chao Wang
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, China.,Academician Workstation, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Fanqian Song
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, China.,Academician Workstation, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Hua Qian
- Academician Workstation, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Xiaoguang Li
- Academician Workstation, College of Pharmacy, Harbin Medical University, and Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Xin Guo
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Xianling Tang
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Ping Liu
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, China
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Eggers B, Marciniak J, Memmert S, Kramer FJ, Deschner J, Nokhbehsaim M. The beneficial effect of cold atmospheric plasma on parameters of molecules and cell function involved in wound healing in human osteoblast-like cells in vitro. Odontology 2020; 108:607-616. [PMID: 32030565 PMCID: PMC7438292 DOI: 10.1007/s10266-020-00487-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 01/19/2020] [Indexed: 02/07/2023]
Abstract
The aim of this study was to analyse the effect of cold atmospheric plasma (CAP) on human osteoblast-like cells in vitro. Additionally, underlying intracellular mechanisms were to be studied. Human osteoblast-like (MG63) cells were exposed to CAP for 60 s. The effects of CAP on key molecules essential for the wound healing response were studied using real-time PCR, ELISA and immunocytochemistry. For studying intracellular signalling pathways, MAP kinase MEK 1/2 was blocked. Cell viability was analysed by an XTT assay and with an EVE automated cell counter. Cell migration was examined by an in vitro wound healing assay.CAP exposition on osteoblast-like cells caused a significant upregulation of interleukin (IL)-1β, IL-6, IL-8, tumor necrosis factor (TNF)α, cyclooxygenase (COX)2, collagen (COL) 1α, matrix metalloproteinase (MMP)1, Ki67, proliferating-cell-nuclear-antigen (PCNA) and chemokine ligand (CCL)2 mRNA expression at 1 day. Interestingly, after blocking of MAP kinase, CAP-induced upregulation of Ki67 was inhibited by 57%. Moreover, CAP treatment improved significantly osteoblast-like cell viability as compared to untreated cells at 1 day. Beneficial effect of CAP treatment was shown by an in vitro wound healing assay, displaying a significant faster wound closure. Our findings provide evidence that CAP exposure effects gene and protein regulation in human osteoblast-like cells. Furthermore, CAP treatment has a positive impact on wound closure in an in vitro setting and might improve existing concepts of hard tissue regeneration in the future.
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Affiliation(s)
- B Eggers
- Department of Oral Surgery, Center of Dento-Maxillo-Facial Medicine, University of Bonn, Bonn, Germany.
| | - J Marciniak
- Section of Experimental Dento-Maxillo-Facial Medicine, Center of Dento-Maxillo-Facial Medicine, University of Bonn, Bonn, Germany
- Department of Orthodontics, Center of Dento-Maxillo-Facial Medicine, University of Bonn, Bonn, Germany
| | - S Memmert
- Section of Experimental Dento-Maxillo-Facial Medicine, Center of Dento-Maxillo-Facial Medicine, University of Bonn, Bonn, Germany
- Department of Orthodontics, Center of Dento-Maxillo-Facial Medicine, University of Bonn, Bonn, Germany
| | - F J Kramer
- Department of Oral Surgery, Center of Dento-Maxillo-Facial Medicine, University of Bonn, Bonn, Germany
- Department of Craniomaxillofacial Surgery, Center of Dento-Maxillo-Facial Medicine, University of Bonn, Bonn, Germany
| | - J Deschner
- Department of Periodontology and Operative Dentistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - M Nokhbehsaim
- Section of Experimental Dento-Maxillo-Facial Medicine, Center of Dento-Maxillo-Facial Medicine, University of Bonn, Bonn, Germany
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Hernáez-Moya R, González S, Urkaregi A, Pijoan JI, Deng SX, Andollo N. Expansion of Human Limbal Epithelial Stem/Progenitor Cells Using Different Human Sera: A Multivariate Statistical Analysis. Int J Mol Sci 2020; 21:ijms21176132. [PMID: 32854428 PMCID: PMC7503296 DOI: 10.3390/ijms21176132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/23/2020] [Accepted: 08/24/2020] [Indexed: 12/13/2022] Open
Abstract
Transplantation of human cultured limbal epithelial stem/progenitor cells (LESCs) has demonstrated to restore the integrity and functionality of the corneal surface in about 76% of patients with limbal stem cell deficiency. However, there are different protocols for the expansion of LESCs, and many of them use xenogeneic products, being a risk for the patients’ health. We compared the culture of limbal explants on the denuded amniotic membrane in the culture medium—supplemental hormone epithelial medium (SHEM)—supplemented with FBS or two differently produced human sera. Cell morphology, cell size, cell growth rate, and the expression level of differentiation and putative stem cell markers were examined. Several bioactive molecules were quantified in the human sera. In a novel approach, we performed a multivariate statistical analysis of data to investigate the culture factors, such as differently expressed molecules of human sera that specifically influence the cell phenotype. Our results showed that limbal cells cultured with human sera grew faster and contained similar amounts of small-sized cells, higher expression of the protein p63α, and lower of cytokeratin K12 than FBS cultures, thus, maintaining the stem/progenitor phenotype of LESCs. Furthermore, the multivariate analysis provided much data to better understand the obtaining of different cell phenotypes as a consequence of the use of different culture methodologies or different culture components.
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Affiliation(s)
- Raquel Hernáez-Moya
- Department of Cell Biology and Histology, School of Medicine and Nursing, Biocruces Bizkaia Health Research Institute, University of the Basque Country UPV/EHU, 48940 Leioa, Bizkaia, Spain;
| | - Sheyla González
- Cornea Division, Stein Eye Institute, University of California, Los Angeles, CA 90095, USA; (S.G.); (S.X.D.)
| | - Arantza Urkaregi
- Department of Applied Mathematics and Statistics and Operational Research, Biocruces Bizkaia Health Research Institute, University of the Basque Country UPV/EHU, 48940 Leioa, Bizkaia, Spain;
| | - Jose Ignacio Pijoan
- Clinical Epidemiology Unit, Cruces University Hospital, Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Bizkaia, Spain;
| | - Sophie X. Deng
- Cornea Division, Stein Eye Institute, University of California, Los Angeles, CA 90095, USA; (S.G.); (S.X.D.)
| | - Noelia Andollo
- Department of Cell Biology and Histology, School of Medicine and Nursing, Biocruces Bizkaia Health Research Institute, University of the Basque Country UPV/EHU, 48940 Leioa, Bizkaia, Spain;
- Correspondence: ; Tel.: +34-94-601-3295
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Recent developments in regenerative ophthalmology. SCIENCE CHINA-LIFE SCIENCES 2020; 63:1450-1490. [PMID: 32621058 DOI: 10.1007/s11427-019-1684-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 03/21/2020] [Indexed: 12/13/2022]
Abstract
Regenerative medicine (RM) is one of the most promising disciplines for advancements in modern medicine, and regenerative ophthalmology (RO) is one of the most active fields of regenerative medicine. This review aims to provide an overview of regenerative ophthalmology, including the range of tools and materials being used, and to describe its application in ophthalmologic subspecialties, with the exception of surgical implantation of artificial tissues or organs (e.g., contact lens, artificial cornea, intraocular lens, artificial retina, and bionic eyes) due to space limitations. In addition, current challenges and limitations of regenerative ophthalmology are discussed and future directions are highlighted.
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Antioxidant Role of PRGF on RPE Cells after Blue Light Insult as a Therapy for Neurodegenerative Diseases. Int J Mol Sci 2020; 21:ijms21031021. [PMID: 32033116 PMCID: PMC7037919 DOI: 10.3390/ijms21031021] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 01/29/2020] [Accepted: 01/31/2020] [Indexed: 12/17/2022] Open
Abstract
Oxidative stress has a strong impact on the development of retinal diseases such as age-related macular degeneration (AMD). Plasma rich in growth factors (PRGF) is a novel therapeutic approach in ophthalmological pathologies. The aim of this study was to analyze the antioxidant effect of PRGF in retinal epithelial cells (EPR) in in vitro and ex vivo retinal phototoxicity models. In vitro analyses were performed on ARPE19 human cell line. Viability and mitochondrial status were assessed in order to test the primary effects of PRGF. GSH level, and protein and gene expression of the main antioxidant pathway (Keap1, Nrf2, GCL, HO-1, and NQO1) were also studied. Ex vivo analyses were performed on rat RPE, and HO-1 and Nrf2 gene and protein expression were evaluated. The results show that PRGF reduces light insult by stimulating the cell response against oxidative damage and modulates the antioxidant pathway. We conclude that PRGF’s protective effect could prove useful as a new therapy for treating neurodegenerative disorders such as AMD.
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18
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Sun X, Yang X, Song W, Ren L. Construction and Evaluation of Collagen-Based Corneal Grafts Using Polycaprolactone To Improve Tension Stress. ACS OMEGA 2020; 5:674-682. [PMID: 31956817 PMCID: PMC6964271 DOI: 10.1021/acsomega.9b03297] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 12/18/2019] [Indexed: 05/09/2023]
Abstract
The emergence of innovative surgical procedures using partial thickness corneal transplant has created a need for the development of corneal grafts to replace pathologic corneal tissue. Corneal repair materials have been successfully prepared in the past 10 years, but they were difficult to be used in clinics because of the unbearable tension caused by interrupted suture during routine surgery. However, polycaprolactone (PCL), a medical polymer material, can solve this problem. Therefore, a hierarchical collagen (Col)-based corneal graft with curvature, consisting of a transparent core part composed of collagen in the center and a mechanically robust fixed part containing collagen and polycaprolactone in the edge, was used as a potential corneal graft for corneal repair and regeneration in this study. The hierarchical collagen-based corneal grafts [collagen-polycaprolactone (Col-PCL) membranes] that are capable of mimicking the native cornea were developed based on chemical and thermal crosslinking mechanisms. The water adsorption of Col-PCL membranes could reach over 80% similar to that of human cornea, and its swelling could reach over 400%. More importantly, the formed Col-PCL membranes could resist a larger tensile strength (1.1 ± 0.03 MPa) before rupturing in comparison with pure collagen membranes and polycaprolactone membranes. Furthermore, the biodegradable Col-PCL membranes could facilitate cell adhesion and proliferation as well as cell migration (exhibiting epithelial wound coverage in <5 days), which showed promise as corneal grafts for cornea tissue engineering.
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Affiliation(s)
- Xiaomin Sun
- School
of Materials Science and Engineering, Key Laboratory of Biomedical Engineering
of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering
of the Ministry of Education, and Innovation Center for Tissue Restoration and
Reconstruction, South China University of
Technology, Guangzhou 510006, P. R. China
- National
Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, P. R. China
| | - Xiangjing Yang
- School
of Materials Science and Engineering, Key Laboratory of Biomedical Engineering
of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering
of the Ministry of Education, and Innovation Center for Tissue Restoration and
Reconstruction, South China University of
Technology, Guangzhou 510006, P. R. China
- National
Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, P. R. China
| | - Wenjing Song
- School
of Materials Science and Engineering, Key Laboratory of Biomedical Engineering
of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering
of the Ministry of Education, and Innovation Center for Tissue Restoration and
Reconstruction, South China University of
Technology, Guangzhou 510006, P. R. China
- National
Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, P. R. China
| | - Li Ren
- School
of Materials Science and Engineering, Key Laboratory of Biomedical Engineering
of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering
of the Ministry of Education, and Innovation Center for Tissue Restoration and
Reconstruction, South China University of
Technology, Guangzhou 510006, P. R. China
- National
Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, P. R. China
- Sino-Singapore
International Joint Research Institute, Guangzhou 510555, P. R. China
- Guangzhou
Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, P. R. China
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Blood-Derived Products for Tissue Repair/Regeneration. Int J Mol Sci 2019; 20:ijms20184581. [PMID: 31533202 PMCID: PMC6770158 DOI: 10.3390/ijms20184581] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 09/12/2019] [Indexed: 12/16/2022] Open
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