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Jia J, Wilson W, Karmaker A, Nishimura A, Otsuka H, Ohara K, Okawa H, McDonald K, Nandi S, Albeck JG, Rodriguez R, Zhou P, Nolta JA. Applications of Plant-Made Fibroblast Growth Factor for Human Pluripotent Stem Cells. Stem Cells Dev 2024; 33:57-66. [PMID: 38062993 DOI: 10.1089/scd.2023.0135] [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] [Indexed: 01/25/2024] Open
Abstract
Human embryonic stem cells (hESCs) and induced pluripotent stem cells (hiPSCs) hold great potential in regenerative medicine. These cells can be expanded indefinitely in theory and are able to differentiate into different types of cells for cell therapies, drug screening, and basic biology studies. The reliable and effective propagation of hESCs and hiPSCs is important for their downstream applications. Basic fibroblast growth factor (bFGF) is critical to hESCs and hiPSCs for maintaining their pluripotency. Plant-produced growth factors are safe to use without potential contamination of infectious viruses and are less expensive to produce. In this study, we used rice cell-made basic fibroblast growth factor (RbFGF) to propagate hESCs and hiPSCs for at least eight passages. Both hESCs and hiPSCs cultured with RbFGF not only maintained the morphology but also the specific expression (OCT4, SSEA4, SOX2, and TRA-1-60) of PSCs, similar to those cultured with the commercial Escherichia coli-produced bFGF. Furthermore, both gene chip-based PluriTest and TaqMan hPSC Scorecard pluripotency analysis demonstrated the pluripotent expression profile of the hESCs cultured with RbFGF. In vitro trilineage assays further showed that these hESCs and hiPSCs cultured on RbFGF were capable of giving rise to cell derivatives of ectoderm, mesoderm, and endoderm, further demonstrating their pluripotency. Finally, chromosome stability was also maintained in hESCs cultured with RbFGF as demonstrated by normal karyotypes. This study suggests broad applications for plant-made growth factors in stem cell culture and regenerative medicine.
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Affiliation(s)
- Junjing Jia
- Stem Cell Program, University of California Davis Medical Center, Sacramento, California, USA
| | - Whitney Wilson
- Stem Cell Program, University of California Davis Medical Center, Sacramento, California, USA
| | - Anindya Karmaker
- Department of Chemical Engineering, University of California, Davis, California, USA
- Global HealthShare Initiative, University of California, Davis, California, USA
| | - Asuka Nishimura
- Kirin Central Research Institute, Kirin Holdings Company Ltd, Fujisawa, Kanagawa, Japan
| | - Hayuma Otsuka
- Kirin Central Research Institute, Kirin Holdings Company Ltd, Fujisawa, Kanagawa, Japan
| | - Kazuaki Ohara
- Kirin Central Research Institute, Kirin Holdings Company Ltd, Fujisawa, Kanagawa, Japan
| | - Hiroshi Okawa
- Kirin Central Research Institute, Kirin Holdings Company Ltd, Fujisawa, Kanagawa, Japan
| | - Karen McDonald
- Department of Chemical Engineering, University of California, Davis, California, USA
- Global HealthShare Initiative, University of California, Davis, California, USA
| | - Somen Nandi
- Department of Chemical Engineering, University of California, Davis, California, USA
- Global HealthShare Initiative, University of California, Davis, California, USA
| | - John G Albeck
- Department of Molecular and Cellular Biology, University of California, Davis, California, USA
| | - Raymond Rodriguez
- Global HealthShare Initiative, University of California, Davis, California, USA
- Kirin Central Research Institute, Kirin Holdings Company Ltd, Fujisawa, Kanagawa, Japan
| | - Ping Zhou
- Stem Cell Program, University of California Davis Medical Center, Sacramento, California, USA
- Department of Internal Medicine, University of California Davis Medical Center, Sacramento, California, USA
- University of California Davis Gene Therapy Center, Sacramento, California, USA
| | - Jan A Nolta
- Stem Cell Program, University of California Davis Medical Center, Sacramento, California, USA
- Department of Internal Medicine, University of California Davis Medical Center, Sacramento, California, USA
- University of California Davis Gene Therapy Center, Sacramento, California, USA
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Zhu L, Titone R, Robertson DM. The impact of hyperglycemia on the corneal epithelium: Molecular mechanisms and insight. Ocul Surf 2019; 17:644-654. [PMID: 31238114 DOI: 10.1016/j.jtos.2019.06.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 06/11/2019] [Accepted: 06/21/2019] [Indexed: 12/15/2022]
Abstract
Type 2 Diabetes Mellitus (T2DM) is reaching epidemic levels worldwide and with it, there is a significant increase in complications associated with the disease. T2DM affects virtually all organ systems including the eye. While frequently overlooked, diabetic keratopathy is the most common ocular complication of diabetes and can manifest in mild to severe forms, the latter of which poses a major threat to vision. As the initial barrier between the environment and the eye, the corneal epithelium functions in innate immune defense. Compromise of this barrier may predispose the cornea to infection and can hinder the refractive capabilities of the eye. The clinical burden in patients with diabetic keratopathy lies primarily in the inability of the corneal epithelium to repair damage and maintain its tight barrier function. Current therapies for diabetic keratopathy are supportive, centering on the prevention of infection and promotion of an optimal healing environment. With no clear disease-modifying agent identified as of yet, a thorough understanding of the pathophysiology that underlies the development of diabetic keratopathy at the cellular level is critical to identify and develop potential therapeutic agents capable of promoting corneal re-epithelialization to accelerate the wound healing process. The focus of this review is to examine what is known regarding the cellular and molecular mechanisms needed to maintain epithelial homeostasis and how it goes awry in diabetes.
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Affiliation(s)
- Luke Zhu
- Department of Ophthalmology, University of Texas Southwestern Medical Center, United States
| | - Rossella Titone
- Department of Ophthalmology, University of Texas Southwestern Medical Center, United States
| | - Danielle M Robertson
- Department of Ophthalmology, University of Texas Southwestern Medical Center, United States.
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Miyanaga T, Ueda Y, Miyanaga A, Yagishita M, Hama N. Angiogenesis after administration of basic fibroblast growth factor induces proliferation and differentiation of mesenchymal stem cells in elastic perichondrium in an in vivo model: mini review of three sequential republication-abridged reports. Cell Mol Biol Lett 2018; 23:49. [PMID: 30323846 PMCID: PMC6173837 DOI: 10.1186/s11658-018-0113-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 09/25/2018] [Indexed: 12/05/2022] Open
Abstract
To date, studies on mesenchymal tissue stem cells (MSCs) in the perichondrium have focused on in vitro analysis, and the dynamics of cartilage regeneration from the perichondrium in vivo remain largely unknown. We have attempted to apply cell and tissue engineering methodology for ear reconstruction using cultured chondrocytes. We hypothesized that by inducing angiogenesis with basic fibroblast growth factor (bFGF), MSCs or cartilage precursor cells would proliferate and differentiate into cartilage in vivo and that the regenerated cartilage would maintain its morphology over an extended period. As a result of a single administration of bFGF to the perichondrium, cartilage tissue formed and proliferated while maintaining its morphology for at least 3 months. By day 3 post bFGF treatment, inflammatory cells, primarily comprising mononuclear cells, migrated to the perichondrial region, and the proliferation of matrix metalloproteinase 1 positive cells peaked. During week 1, the perichondrium thickened and proliferation of vascular endothelial cells was noted, along with an increase in the number of CD44-positive and CD90-positive cartilage MSCs/progenitor cells. Neocartilage was formed after 2 weeks, and hypertrophied mature cartilage was formed and maintained after 3 months. Proliferation of the perichondrium and cartilage was bFGF concentration-dependent and was inhibited by neutralizing antibodies. Angiogenesis induction by bFGF was blocked by the administration of an angiogenesis inhibitor, preventing perichondrium proliferation and neocartilage formation. These results suggested that angiogenesis may be important for the induction and differentiation of MSCs/cartilage precursor cells in vivo, and that morphological changes, once occurring, are maintained.
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Affiliation(s)
- Toru Miyanaga
- 1Department of Plastic and Reconstructive Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 9200293 Japan.,4Kanazawa Medical University Hospital, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 9200293 Japan
| | - Yoshimichi Ueda
- 2Department of Pathology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 9200293 Japan
| | - Aiko Miyanaga
- 3Department of Nursing, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 9200293 Japan
| | - Mikio Yagishita
- 1Department of Plastic and Reconstructive Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 9200293 Japan
| | - Naoko Hama
- 1Department of Plastic and Reconstructive Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 9200293 Japan
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4
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Wiener DJ, Basak O, Asra P, Boonekamp KE, Kretzschmar K, Papaspyropoulos A, Clevers H. Establishment and characterization of a canine keratinocyte organoid culture system. Vet Dermatol 2018; 29:375-e126. [PMID: 29963730 DOI: 10.1111/vde.12541] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Perturbations of epidermal and follicular homeostasis have been attributed to a variety of skin diseases affecting dogs. The availability of an in vitro system to investigate these diseases is important to understand underlying pathomechanisms. OBJECTIVES To establish an accurate and reliable in vitro 3D system of canine keratinocyte organoids to lay the basis for studying functional defects in interfollicular epidermis (IFE) and hair follicle (HF) morphogenesis, reconstitution and differentiation that lead to alopecic and epidermal diseases. ANIMALS Skin biopsies were obtained from freshly euthanized dogs of different breeds with no skin abnormalities. METHODS Cells derived from microdissected IFE and HFs were seeded in Matrigel and keratinocyte organoids were grown and characterized using immunohistochemistry, RT-qPCR and RNA sequencing. RESULTS Both organoid lines develop into a basal IFE-like cell type. Gene and protein expression analysis revealed high mRNA and protein levels of keratins 5 and 14, IFE differentiation markers and intercellular molecules. Key markers of HF stem cells were lacking. Withdrawal of growth factors resulted in upregulation of markers such as KRT16, Involucrin, KRT17 and SOX9, showing the potential of the organoids to develop towards more differentiated tissue. CONCLUSION AND CLINICAL IMPORTANCE Our 3D in vitro culture system provides the basis to explore epidermal function, to investigate the culture conditions necessary for the development of organoids with a HF signature and to address cutaneous disorders in dogs. However, for induction of HF signatures or hair growth, addition of different growth factors or co-culture with dermal papilla will be required.
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Affiliation(s)
- Dominique J Wiener
- Vetsuisse Faculty, Institute of Animal Pathology, University of Bern, Länggassstrasse 122, 3012, Bern, Switzerland.,Dermfocus, Vetsuisse Faculty, Inselspital, Bern University Hospital, Freiburgstrasse 14, 3010, Bern, Switzerland.,Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands
| | - Onur Basak
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Priyanca Asra
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Kim E Boonekamp
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Kai Kretzschmar
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Angelos Papaspyropoulos
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Hans Clevers
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands.,Princess Máxima Centre for Pediatric Oncology, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands
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Wu MF, Stachon T, Seitz B, Langenbucher A, Szentmáry N. Effect of human autologous serum and fetal bovine serum on human corneal epithelial cell viability, migration and proliferation in vitro. Int J Ophthalmol 2017; 10:908-913. [PMID: 28730081 DOI: 10.18240/ijo.2017.06.12] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 02/06/2017] [Indexed: 12/14/2022] Open
Abstract
AIM To analyze the concentration-dependent effects of autologous serum (AS) and fetal bovine serum (FBS) on human corneal epithelial cell (HCEC) viability, migration and proliferation. METHODS AS was prepared from 13 patients with non-healing epithelial defects Dulbecco's modified eagle medium/Ham's F12 (DMEM/F12) with 5% FBS, 0.5% dimethyl sulphoxide (DMSO), 10 ng/mL human epidermal growth factor, 1% insulin-transferrin-selenium, then were incubated in serum media: DMEM/F12 supplemented by 5%, 10%, 15% or 30% AS or FBS. HCEC viability was analyzed using cell proliferation kit XTT, migration using a wound healing assay, proliferation by the cell proliferation enzyme-linked immunosorbent assay (ELISA) BrdU kit. Statistical analysis was performed using the generalized linear model, the values at 30% AS or 30% FBS were used as the baselines. RESULTS HCEC viability was the highest at 30% AS or 15% FBS and the lowest at 10% AS or 30% FBS application. HCEC migration was the quickest through 30% AS or 30% FBS and the slowest through 5% AS or 5% FBS concentrations. Proliferation was the most increased through 15% AS or 5% FBS and the least increased through 30% AS or 30% FBS concentrations. HCEC viability at 10% and 15% AS was significantly worse (P=0.001, P=0.023) compared to baseline and significantly better at 15% FBS (P=0.003) concentrations. HCEC migration was significantly worse (P≤0.007) and HCEC proliferation significantly better (P<0.001) in all concentration groups compared to baseline. CONCLUSION For the best viability of HCEC 30% AS or 15% FBS, for HCEC migration 30% AS or 30% FBS, for proliferation 15% AS or 5% FBS should be used. Therefore, we suggest the use of 30% AS in clinical practice.
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Affiliation(s)
- Ming-Feng Wu
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar 66424, Germany
| | - Tanja Stachon
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar 66424, Germany
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar 66424, Germany
| | - Achim Langenbucher
- Experimental Ophthalmology, Saarland University, Homburg/Saar 66424, Germany
| | - Nóra Szentmáry
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar 66424, Germany.,Department of Ophthalmology, Semmelweis University, Budapest 1085, Hungary
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Kim S, Park YW, Lee E, Park SW, Park S, Kim JW, Seong JK, Seo K. Air assisted lamellar keratectomy for the corneal haze model. J Vet Sci 2015; 16:349-56. [PMID: 25797296 PMCID: PMC4588021 DOI: 10.4142/jvs.2015.16.3.349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 03/07/2015] [Indexed: 11/20/2022] Open
Abstract
To standardize the corneal haze model in the resection depth and size for efficient corneal haze development, air assisted lamellar keratectomy was performed. The ex vivo porcine corneas were categorized into four groups depending on the trephined depth: 250 µm (G1), 375 µm (G2), 500 µm(G3) and 750 µm (G4). The stroma was equally ablated at the five measurement sites in all groups. Significant differences were observed between the trephined corneal depths for resection and ablated corneal thickness in G1 (p < 0.001). No significant differences were observed between the trephined corneal depth for resection and the ablated corneal thickness in G2, G3, and G4. The resection percentage was similar in all groups after microscopic imaging of corneal sections. Air assisted lamellar keratectomy (AK) and conventional keratectomy (CK) method were applied to six beagles, after which development of corneal haze was evaluated weekly until postoperative day 28. The occurrence of corneal haze in the AK group was significantly higher than that in the CK group beginning 14 days after surgery. Alpha-smooth muscle actin expression was significantly higher in the AK group (p < 0.001) than the CK group. Air assisted lamellar keratectomy was used to achieve the desired corneal thickness after resection and produce sufficient corneal haze.
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Affiliation(s)
- Soohyun Kim
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
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Lin T, Gong L. Sodium hyaluronate eye drops treatment for superficial corneal abrasion caused by mechanical damage: a randomized clinical trial in the People's Republic of China. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:687-94. [PMID: 25678773 PMCID: PMC4322606 DOI: 10.2147/dddt.s77270] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE To evaluate the effectiveness and safety of 0.3% sodium hyaluronate (HA) compared to recombinant bovine basic fibroblast growth factor (rb-bFGF) for the treatment of corneal epithelial abrasion caused by mechanical damage in Chinese patients. METHODS Thirty patients were randomly assigned to the HA or rb-bFGF treatment group. The HA group was treated with 0.3% HA and 0.5% levofloxacin, and the rb-bFGF group was treated with topical rb-bFGF and 0.5% levofloxacin. The primary endpoint was the clinical effectiveness rates at day 3. Secondary endpoints were the dimensions of the wound area and the percentage of wound closure. RESULTS After 3 days of treatment, the clinical effectiveness rates of the HA group and the rb-bFGF group were 86.67% (13/15) and 93.33% (14/15), respectively. The dimensions of the wound area were reduced from 9.83±8.50 to 0.02±0.06 mm(2) for the HA group at day 7, and from 10.58±9.94 to 0.02±0.07 mm(2) for the rb-bFGF group. At day 3, the wound closure was almost complete in both groups; 94.73% in the HA group compared to 95.77% in the rb-bFGF group (P>0.05). CONCLUSION Topical 0.3% HA provided a promising treatment for superficial corneal abrasion caused by mechanical damage in a manner similar to rb-bFGF.
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Affiliation(s)
- Tong Lin
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, People's Republic of China
| | - Lan Gong
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, People's Republic of China
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Ito Y, Correll K, Schiel JA, Finigan JH, Prekeris R, Mason RJ. Lung fibroblasts accelerate wound closure in human alveolar epithelial cells through hepatocyte growth factor/c-Met signaling. Am J Physiol Lung Cell Mol Physiol 2014; 307:L94-105. [PMID: 24748602 DOI: 10.1152/ajplung.00233.2013] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
There are 190,600 cases of acute lung injury/acute respiratory distress syndrome (ALI/ARDS) each year in the United States, and the incidence and mortality of ALI/ARDS increase dramatically with age. Patients with ALI/ARDS have alveolar epithelial injury, which may be worsened by high-pressure mechanical ventilation. Alveolar type II (ATII) cells are the progenitor cells for the alveolar epithelium and are required to reestablish the alveolar epithelium during the recovery process from ALI/ARDS. Lung fibroblasts (FBs) migrate and proliferate early after lung injury and likely are an important source of growth factors for epithelial repair. However, how lung FBs affect epithelial wound healing in the human adult lung has not been investigated in detail. Hepatocyte growth factor (HGF) is known to be released mainly from FBs and to stimulate both migration and proliferation of primary rat ATII cells. HGF is also increased in lung tissue, bronchoalveolar lavage fluid, and serum in patients with ALI/ARDS. Therefore, we hypothesized that HGF secreted by FBs would enhance wound closure in alveolar epithelial cells (AECs). Wound closure was measured using a scratch wound-healing assay in primary human AEC monolayers and in a coculture system with FBs. We found that wound closure was accelerated by FBs mainly through HGF/c-Met signaling. HGF also restored impaired wound healing in AECs from the elderly subjects and after exposure to cyclic stretch. We conclude that HGF is the critical factor released from FBs to close wounds in human AEC monolayers and suggest that HGF is a potential strategy for hastening alveolar repair in patients with ALI/ARDS.
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Affiliation(s)
- Yoko Ito
- Department of Medicine, National Jewish Health, Denver, Colorado;
| | - Kelly Correll
- Department of Medicine, National Jewish Health, Denver, Colorado
| | - John A Schiel
- Department of Cell and Developmental Biology, University of Colorado, Aurora, Colorado
| | - Jay H Finigan
- Department of Medicine, National Jewish Health, Denver, Colorado
| | - Rytis Prekeris
- Department of Cell and Developmental Biology, University of Colorado, Aurora, Colorado
| | - Robert J Mason
- Department of Medicine, National Jewish Health, Denver, Colorado
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Yan L, Wu W, Wang Z, Li C, Lu X, Duan H, Zhou J, Wang X, Wan P, Song Y, Tang J, Han Y. Comparative study of the effects of recombinant human epidermal growth factor and basic fibroblast growth factor on corneal epithelial wound healing and neovascularization in vivo and in vitro. Ophthalmic Res 2012; 49:150-60. [PMID: 23258255 DOI: 10.1159/000343775] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 09/06/2012] [Indexed: 01/18/2023]
Abstract
PURPOSE This study was undertaken to investigate the effects of recombinant human epidermal growth factor (rhEGF) and basic fibroblast growth factor (bFGF) on corneal wound healing and neovascularization (CNV). METHODS The positive effects of 10 ng/ml rhEGF and bFGF on the proliferation of corneal epithelial cells (SD-HCEC1s), rabbit keratocyte cells (RKCs) and human umbilical vein endothelial cells (HUVECs) as well as the effects on the migration capacity on HUVECs were observed. An animal central corneal wound and CNV model was established in rabbits. One eye of each group was chosen randomly for topical administration of rhEGF, bFGF or normal saline, and variability in the area of corneal epithelial wound healing and CNV was observed. RESULTS The optimal concentration of rhEGF and bFGF for the proliferation of corneal epithelial cells was 10 ng/ml. The promotive effect of 10 ng/ml rhEGF on the proliferation of RKCs and HUVECs was less than that of 10 ng/ml bFGF. In the animal experiment, the healing rate of the corneal epithelium in the rhEGF group was better than in the other groups on day 1. On day 3, the healing rates of the 3 groups were nearly equal. The CNV area in the rhEGF group was less than that of the bFGF group. CONCLUSIONS rhEGF and bFGF both had promotive effects on corneal epithelial wound healing, but rhEGF had a weaker promotive effect on CNV than bFGF. With long-term application of growth factor drugs, rhEGF is suggested for lessening the growth of CNV.
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Affiliation(s)
- Limeng Yan
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
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10
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Wang Y, Sun Y, Yang XY, Ji SZ, Han S, Xia ZF. Mobilised bone marrow-derived cells accelerate wound healing. Int Wound J 2012; 10:473-9. [PMID: 22734442 DOI: 10.1111/j.1742-481x.2012.01007.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Massive skin defects caused by severe burn and trauma are a clinical challenge to surgeons. Timely and effective wound closure is often hindered by the lack of skin donor site. Bone marrow-derived cells (BMDCs) have been shown to 'differentiate' into multiple tissue cells. In this study we focused on the direct manipulation of endogenous BMDCs, avoiding the immunocompatibility issues and complicated cell isolation, purification, identification and amplification procedures in vitro on wound repair. We found that mobilisation of the BMDCs into the circulation significantly increased the amount of BMDCs at the injury site which in turn accelerated healing of large open wound. We used a chimeric green fluorescent protein (GFP) mouse model to track BMDCs and to investigate their role in full-thickness skin excisional wounds. We have shown that bone marrow mobilisation by granulocyte colony stimulating factor (G-CSF) exerted multiple beneficial effects on skin repair, both by increasing the engraftment of BMDCs into the skin to differentiate into multiple skin cell types and by upregulating essential cytokine mRNAs critical to wound repair. The potential trophic effects of G-CSF on bone marrow stem cells to accelerate wound healing could have a significant clinical impact.
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Affiliation(s)
- Yu Wang
- Burns Institute of Chinese PLA and Department of Burn Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
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11
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Gupta R, Yarnall BW, Giuliano EA, Kanwar JR, Buss DG, Mohan RR. Mitomycin C: a promising agent for the treatment of canine corneal scarring. Vet Ophthalmol 2011; 14:304-12. [PMID: 21929607 DOI: 10.1111/j.1463-5224.2011.00877.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate the safety and efficacy of mitomycin C (MMC) in prevention of canine corneal scarring. METHODS With an in vitro approach using healthy canine corneas, cultures of primary canine corneal fibroblasts or myofibroblasts were generated. Primary canine corneal fibroblasts were obtained by growing corneal buttons in minimal essential medium supplemented with 10% fetal bovine serum. Canine corneal myofibroblasts were produced by growing cultures in serum-free medium containing transforming growth factor β1 (1 ng/mL). Trypan blue assay and phase-contrast microscopy were used to evaluate the toxicity of three doses of MMC (0.002%, 0.02% and 0.04%). Real-time PCR, immunoblot, and immunocytochemistry techniques were used to determine MMC efficacy to inhibit markers of canine corneal scarring. RESULTS A single 2-min treatment of 0.02% or less MMC did not alter canine corneal fibroblast or keratocyte phenotype, viability, or growth. The 0.02% dose substantially reduced myofibroblast formation (up to 67%; P < 0.001), as measured by the change in RNA and protein expression of fibrosis biomarkers (α-smooth muscle actin and F-actin). CONCLUSION This in vitro study suggests that a single 2-min 0.02% MMC treatment to the canine corneal keratocytes is safe and may be useful in decreasing canine corneal fibrous metaplasia. In vivo studies are warranted.
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Affiliation(s)
- Rangan Gupta
- Harry S. Truman Veterans Memorial Hospital, Columbia, MO, USA
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Nelson MR, Howard D, Jensen OE, King JR, Rose FRAJ, Waters SL. Growth-induced buckling of an epithelial layer. Biomech Model Mechanobiol 2010; 10:883-900. [DOI: 10.1007/s10237-010-0280-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Accepted: 12/07/2010] [Indexed: 12/13/2022]
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Wang X, Zhou X, Ma J, Tian H, Jiao Y, Zhang R, Huang Z, Xiao J, Zhao B, Qian H, Li X. Effects of Keratinocyte Growth Factor-2 on Corneal Epithelial Wound Healing in a Rabbit Model of Carbon Dioxide Laser Injury. Biol Pharm Bull 2010; 33:971-6. [DOI: 10.1248/bpb.33.971] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Xiaojie Wang
- School of Public Health, Jilin University
- Biopharmaceutics and Bioreactor Research Center, Ministry of Education, Jilin Agriculture University
| | - Xin Zhou
- Biopharmaceutics and Bioreactor Research Center, Ministry of Education, Jilin Agriculture University
| | - Jisheng Ma
- Biopharmaceutics and Bioreactor Research Center, Ministry of Education, Jilin Agriculture University
- School of Public Health, Jilin University
| | - Haishan Tian
- Biopharmaceutics and Bioreactor Research Center, Ministry of Education, Jilin Agriculture University
| | - Yue Jiao
- Biopharmaceutics and Bioreactor Research Center, Ministry of Education, Jilin Agriculture University
| | - Rui Zhang
- Biopharmaceutics and Bioreactor Research Center, Ministry of Education, Jilin Agriculture University
| | - Zhifeng Huang
- Key Laboratory Biotechnology Pharmaceutical Engineering, Wenzhou Medical College
| | - Jian Xiao
- Key Laboratory Biotechnology Pharmaceutical Engineering, Wenzhou Medical College
| | | | - Huanwen Qian
- Institute of Radiation Medicine, The Academy of Military Medical Science
| | - Xiaokun Li
- School of Public Health, Jilin University
- Biopharmaceutics and Bioreactor Research Center, Ministry of Education, Jilin Agriculture University
- Key Laboratory Biotechnology Pharmaceutical Engineering, Wenzhou Medical College
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