1
|
Corneal keratin aggresome (CKAGG) formation and clearance by proteasome activation. Heliyon 2018; 4:e01012. [PMID: 30619956 PMCID: PMC6313837 DOI: 10.1016/j.heliyon.2018.e01012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/19/2018] [Accepted: 12/03/2018] [Indexed: 01/27/2023] Open
Abstract
Purpose To understand the mechanism of corneal keratin expression and clearance in corneal epithelium with Limbal Stem Cell Deficiency (LSCD). The hypothesis is that LSCD-induced proteasome dysfunction is a contributing factor to keratin aggregation, causing corneal keratin aggresome (CKAGG) formation. Method LSCD was surgically induced in rabbit corneas. LSCD corneal epithelial cells (D-CEC) were collected to investigate keratin K4 and K13 expression and CKAGG formation. Oral mucosal epithelial cells (OMECS) were isolated and cultured to study K4 and K13 expression. Cultured cells were treated with proteasome inhibitor to induce CKAGG formation. Results K4 and K13 were strongly expressed in D-CEC, with additional higher molecular weight bands of K4 and K13, suggesting CKAGG formation. Double staining of K4/K13 and ubiquitin showed co-localization of these keratins with ubiquitin in D-CEC. Proteasome inhibition also showed K4/K13 modification and accumulation in cultured OMECS, similar to D-CEC. Proteasome activation was then performed in cultured OMEC. There was no accumulation of keratins, and levels of unmodified keratins were found significantly reduced. Conclusion Results showed an abnormal expression of K4 and K13 after LSCD-induced proteasome dysfunction, which coalesce to form CKAGG in Corneal Epithelial Cells (CEC). We propose that CKAGG formation may be one of the causative factors of morphological alterations in the injured corneal epithelium, and that CKAGG could potentially be cleared by enhancing proteasome activity.
Collapse
|
2
|
Guo ZH, Zhang W, Jia YYS, Liu QX, Li ZF, Lin JS. An Insight into the Difficulties in the Discovery of Specific Biomarkers of Limbal Stem Cells. Int J Mol Sci 2018; 19:ijms19071982. [PMID: 29986467 PMCID: PMC6073450 DOI: 10.3390/ijms19071982] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 06/25/2018] [Accepted: 06/29/2018] [Indexed: 12/13/2022] Open
Abstract
Keeping the integrity and transparency of the cornea is the most important issue to ensure normal vision. There are more than 10 million patients going blind due to the cornea diseases worldwide. One of the effective ways to cure corneal diseases is corneal transplantation. Currently, donations are the main source of corneas for transplantation, but immune rejection and a shortage of donor corneas are still serious problems. Graft rejection could cause transplanted cornea opacity to fail. Therefore, bioengineer-based corneas become a new source for corneal transplantation. Limbal stem cells (LSCs) are located at the basal layer in the epithelial palisades of Vogt, which serve a homeostatic function for the cornea epithelium and repair the damaged cornea. LSC-based transplantation is one of the hot topics currently. Clinical data showed that the ratio of LSCs to total candidate cells for a transplantation has a significant impact on the effectiveness of the transplantation. It indicates that it is very important to accurately identify the LSCs. To date, several putative biomarkers of LSCs have been widely reported, whereas their specificity is controversial. As reported, the identification of LSCs is based on the characteristics of stem cells, such as a nuclear-to-cytoplasm ratio (N/C) ≥ 0.7, label-retaining, and side population (SP) phenotype. Here, we review recently published data to provide an insight into the circumstances in the study of LSC biomarkers. The particularities of limbus anatomy and histochemistry, the limits of the current technology level for LSC isolation, the heterogeneity of LSCs and the influence of enzyme digestion are discussed. Practical approaches are proposed in order to overcome the difficulties in basic and applied research for LSC-specific biomarkers.
Collapse
Affiliation(s)
- Zhi Hou Guo
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
| | - Wei Zhang
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
| | | | - Qing Xiu Liu
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
| | - Zhao Fa Li
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
| | - Jun Sheng Lin
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
| |
Collapse
|
3
|
Etxebarria J, Sanz-Lázaro S, Hernáez-Moya R, Freire V, Durán JA, Morales MC, Andollo N. Serum from plasma rich in growth factors regenerates rabbit corneas by promoting cell proliferation, migration, differentiation, adhesion and limbal stemness. Acta Ophthalmol 2017; 95:e693-e705. [PMID: 28266180 DOI: 10.1111/aos.13371] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 11/18/2016] [Indexed: 12/22/2022]
Abstract
PURPOSE To evaluate the regenerating potential and the mechanisms through which the autologous serum derived from plasma rich in growth factors (s-PRGF) favours corneal wound healing in vitro and in vivo. METHODS We compared the effect of various concentrations of s-PRGF versus fetal bovine serum (FBS) and control treatment in rabbit primary corneal epithelial and stromal cells and wounded rabbit corneas. Cell proliferation was measured using an enzymatic colorimetric assay. In vitro and in vivo wound-healing progression was assessed by image-analysis software. Migration and invasion were evaluated using transfilter assays. Histological structure was analysed in stained sections. Protein expression was evaluated by immunohistochemistry. RESULTS s-PRGF promoted the robust proliferation of epithelial cultures at any concentration, similar to FBS. Likewise, s-PRGF and FBS produced similar re-epithelialization rates in in vitro wound-healing assays. In vivo, s-PRGF treatment accelerated corneal wound healing in comparison with control treatment. This difference was significant only for 100% s-PRGF treatment in our healthy rabbit model. Histological analysis confirmed normal epithelialization in all cases. Immunohistochemistry showed a higher expression of cytokeratins 3/76 and 15, zonula occludens-1 and alpha-smooth muscle actin proteins as a function of s-PRGF concentration. Notably, keratocyte density in the anterior third of the stroma increased with increase in s-PRGF concentration, suggesting an in vivo chemotactic effect of s-PRGF on keratocytes that was further confirmed in vitro. CONCLUSION s-PRGF promotes proliferation and migration and influences limbal stemness, adhesion and fibrosis during corneal healing.
Collapse
Affiliation(s)
- Jaime Etxebarria
- Department of Cell Biology and Histology; School of Medicine and Nursing; BioCruces Health Research Institute; University of the Basque Country; Begiker; Leioa Spain
- Department of Ophthalmology; BioCruces Health Research Institute; University Hospital of Cruces; Begiker; Barakaldo Spain
| | - Sara Sanz-Lázaro
- Department of Cell Biology and Histology; School of Medicine and Nursing; BioCruces Health Research Institute; University of the Basque Country; Begiker; Leioa Spain
| | - Raquel Hernáez-Moya
- Department of Cell Biology and Histology; School of Medicine and Nursing; BioCruces Health Research Institute; University of the Basque Country; Begiker; Leioa Spain
| | - Vanesa Freire
- Department of Cell Biology and Histology; School of Medicine and Nursing; BioCruces Health Research Institute; University of the Basque Country; Begiker; Leioa Spain
- R & D Department; Instituto Clínico-Quirúrgico de Oftalmología; Bilbao Spain
| | - Juan A. Durán
- R & D Department; Instituto Clínico-Quirúrgico de Oftalmología; Bilbao Spain
- Department of Ophthalmology; School of Medicine and Nursing; BioCruces Health Research Institute; University of the Basque Country; Begiker; Leioa Spain
| | - María-Celia Morales
- Department of Cell Biology and Histology; School of Medicine and Nursing; BioCruces Health Research Institute; University of the Basque Country; Begiker; Leioa Spain
| | - Noelia Andollo
- Department of Cell Biology and Histology; School of Medicine and Nursing; BioCruces Health Research Institute; University of the Basque Country; Begiker; Leioa Spain
| |
Collapse
|
4
|
Galindo S, Herreras JM, López-Paniagua M, Rey E, de la Mata A, Plata-Cordero M, Calonge M, Nieto-Miguel T. Therapeutic Effect of Human Adipose Tissue-Derived Mesenchymal Stem Cells in Experimental Corneal Failure Due to Limbal Stem Cell Niche Damage. Stem Cells 2017; 35:2160-2174. [DOI: 10.1002/stem.2672] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 04/18/2017] [Accepted: 06/17/2017] [Indexed: 01/14/2023]
Affiliation(s)
- Sara Galindo
- Institute of Applied Ophthalmobiology (IOBA), University of Valladolid; Valladolid Spain
- CIBER-BBN (Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine), Carlos III National Institute of Health; Spain
| | - José M. Herreras
- Institute of Applied Ophthalmobiology (IOBA), University of Valladolid; Valladolid Spain
- CIBER-BBN (Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine), Carlos III National Institute of Health; Spain
| | - Marina López-Paniagua
- Institute of Applied Ophthalmobiology (IOBA), University of Valladolid; Valladolid Spain
- CIBER-BBN (Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine), Carlos III National Institute of Health; Spain
| | - Esther Rey
- Institute of Applied Ophthalmobiology (IOBA), University of Valladolid; Valladolid Spain
- CIBER-BBN (Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine), Carlos III National Institute of Health; Spain
| | - Ana de la Mata
- Institute of Applied Ophthalmobiology (IOBA), University of Valladolid; Valladolid Spain
- CIBER-BBN (Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine), Carlos III National Institute of Health; Spain
| | - María Plata-Cordero
- Institute of Applied Ophthalmobiology (IOBA), University of Valladolid; Valladolid Spain
- CIBER-BBN (Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine), Carlos III National Institute of Health; Spain
| | - Margarita Calonge
- Institute of Applied Ophthalmobiology (IOBA), University of Valladolid; Valladolid Spain
- CIBER-BBN (Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine), Carlos III National Institute of Health; Spain
| | - Teresa Nieto-Miguel
- Institute of Applied Ophthalmobiology (IOBA), University of Valladolid; Valladolid Spain
- CIBER-BBN (Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine), Carlos III National Institute of Health; Spain
| |
Collapse
|
5
|
Tone H, Yoshioka S, Akiyama H, Nishimura A, Ichimura M, Nakatani M, Kiyono T, Toyoda M, Watanabe M, Umezawa A. Embryoid Body-Explant Outgrowth Cultivation from Induced Pluripotent Stem Cells in an Automated Closed Platform. BIOMED RESEARCH INTERNATIONAL 2016; 2016:7098987. [PMID: 27648449 PMCID: PMC5018318 DOI: 10.1155/2016/7098987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 06/03/2016] [Accepted: 06/19/2016] [Indexed: 11/17/2022]
Abstract
Automation of cell culture would facilitate stable cell expansion with consistent quality. In the present study, feasibility of an automated closed-cell culture system "P 4C S" for an embryoid body- (EB-) explant outgrowth culture was investigated as a model case for explant culture. After placing the induced pluripotent stem cell- (iPSC-) derived EBs into the system, the EBs successfully adhered to the culture surface and the cell outgrowth was clearly observed surrounding the adherent EBs. After confirming the outgrowth, we carried out subculture manipulation, in which the detached cells were simply dispersed by shaking the culture flask, leading to uniform cell distribution. This enabled continuous stable cell expansion, resulting in a cell yield of 3.1 × 10(7). There was no evidence of bacterial contamination throughout the cell culture experiments. We herewith developed the automated cultivation platform for EB-explant outgrowth cells.
Collapse
Affiliation(s)
- Hiroshi Tone
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
- Medical Devices Division, Kaneka Corporation, Osaka 530-8288, Japan
| | - Saeko Yoshioka
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
- Laboratory for Medical Engineering, Division of Materials and Chemical Engineering, Graduate School of Engineering, Yokohama National University, Kanagawa 240-8501, Japan
| | - Hirokazu Akiyama
- Medical Device Development Laboratories, Kaneka Corporation, Hyōgo 676-8688, Japan
| | - Akira Nishimura
- Medical Device Development Laboratories, Kaneka Corporation, Hyōgo 676-8688, Japan
| | - Masaki Ichimura
- Medical Device Development Laboratories, Kaneka Corporation, Hyōgo 676-8688, Japan
| | - Masaru Nakatani
- Medical Device Development Laboratories, Kaneka Corporation, Hyōgo 676-8688, Japan
| | - Tohru Kiyono
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo 104-0045, Japan
| | - Masashi Toyoda
- Research Team for Geriatric Medicine (Vascular Medicine), Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan
| | - Masatoshi Watanabe
- Laboratory for Medical Engineering, Division of Materials and Chemical Engineering, Graduate School of Engineering, Yokohama National University, Kanagawa 240-8501, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
| |
Collapse
|
6
|
Bae KH, Ahn M, Cho NC, You IC. Clinical Presentation and Treatment Outcomes of Recurrent Corneal Erosion. JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY 2016. [DOI: 10.3341/jkos.2016.57.4.555] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Kyoung Hwa Bae
- Department of Ophthalmology, Chonbuk National University Medical School1, Jeonju, Korea
| | - Min Ahn
- Department of Ophthalmology, Chonbuk National University Medical School1, Jeonju, Korea
- Research Institute of Clinical Medicine, Chonbuk National University, Jeonju, Korea
- Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea
| | - Nam Chun Cho
- Department of Ophthalmology, Chonbuk National University Medical School1, Jeonju, Korea
- Research Institute of Clinical Medicine, Chonbuk National University, Jeonju, Korea
- Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea
| | - In Cheon You
- Department of Ophthalmology, Chonbuk National University Medical School1, Jeonju, Korea
- Research Institute of Clinical Medicine, Chonbuk National University, Jeonju, Korea
- Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea
| |
Collapse
|
7
|
Sugiyama H, Tokunaka K, Hayashi T, Imamura Y, Morita M, Yamato M. Non-Triple Helical Form of Type IV Collagen α1 Chain. Heliyon 2015; 1:e00051. [PMID: 27441234 PMCID: PMC4945737 DOI: 10.1016/j.heliyon.2015.e00051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 11/04/2015] [Accepted: 11/18/2015] [Indexed: 11/25/2022] Open
Abstract
Type IV collagen with a triple-helical structure composed of three α chains is a major component of basement membrane. Previously, we reported that non-triple helical form of type IV collagen α1 chain (NTHα1(IV)) was isolated from human placenta and the culture media of human cells. In the present study, we report on the localization of NTH α1(IV) with a monoclonal antibody #370, exclusively reactive for the nascent chain, in the rabbit tissues. The staining was found on the basement membrane of blood vessels, of endomysium, of nerve, and of kidney but not on epithelial basement membrane. In a rabbit angiogenic model, #370 antibody staining was exclusively observed in neovascular tip region of endothelial cells, where no staining with anti-type IV collagen antibody was seen. Distinct localizations suggest that NTHα1(IV) is produced and stably deposited in endothelial cells and the surroundings under physiological conditions with some physiological roles in relation to the dynamics of vascular system.
Collapse
Affiliation(s)
- Hiroaki Sugiyama
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Tokyo 162-8666, Japan
| | - Kazuhiro Tokunaka
- Pharmaceutical Research Laboratories, Nippon Kayaku Co., Ltd., Tokyo 115-8588, Japan
| | - Toshihiko Hayashi
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yasutada Imamura
- Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Hachioji, Tokyo 192-0015, Japan
| | - Makoto Morita
- Pharmaceutical Research Laboratories, Nippon Kayaku Co., Ltd., Tokyo 115-8588, Japan
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Tokyo 162-8666, Japan
| |
Collapse
|
8
|
An Update on Ocular Surface Epithelial Stem Cells: Cornea and Conjunctiva. Stem Cells Int 2015; 2015:601731. [PMID: 26146504 PMCID: PMC4471309 DOI: 10.1155/2015/601731] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 05/21/2015] [Accepted: 05/25/2015] [Indexed: 01/09/2023] Open
Abstract
The human ocular surface (front surface of the eye) is formed by two different types of epithelia: the corneal epithelium centrally and the conjunctival epithelium that surrounds this. These two epithelia are maintained by different stem cell populations (limbal stem cells for the corneal epithelium and the conjunctival epithelial stem cells). In this review, we provide an update on our understanding of these epithelia and their stem cells systems, including embryology, new markers, and controversy around the location of these stem cells. We also provide an update on the translation of this understanding into clinical applications for the treatment of debilitating ocular surface diseases.
Collapse
|