scholarly journals Generation and Feasibility Assessment of a New Vehicle for Cell-Based Therapy for Treating Corneal Endothelial Dysfunction

PLoS ONE ◽  
2016 ◽  
Vol 11 (6) ◽  
pp. e0158427 ◽  
Author(s):  
Naoki Okumura ◽  
Kazuya Kakutani ◽  
Ryota Inoue ◽  
Daiki Matsumoto ◽  
Tomoki Shimada ◽  
...  
2020 ◽  
Author(s):  
Lin Shen ◽  
Peng Sun ◽  
Liqun Du ◽  
Jing Zhu ◽  
Chengqun Ju ◽  
...  

Abstract Background Corneal endothelial dysfunction is a principal cause of visual deficiency. Corneal transplantation is the most effective treatment for corneal endothelial dysfunction. However, a severe shortage of available donor corneas or human corneal endothelial cells (HCEC) remains a global challenge. Previously, we acquired corneal endothelial cell-like cells (CEC-like cells) derived from human skin-derived precursors (SKPs). CEC-like cells were injected into rabbit and monkey corneal endothelial dysfunction models and exerted excellent therapeutic effect. Method We prolonged the clinical observation in the monkey experiment for 2 years. PCR and DNA sequencing were carried out to confirm the existence of CEC-like cells. Histological examinations were carried out to show the corneal morphology. Further transcriptome sequencing was also carried out on HCEC, CEC-like cells before transplantation and after transplantation. Results The monkeys cornea remained transparent and normal thickness. The total endothelial cell density decreased gradually, but tended to be stable and remained in a normal range during 2-year observation. The CEC-like cells persist during observation and could adapt to the microenvironment after transplantation. The gene expression pattern of CEC-like cells was similar to HCEC and changed slightly after transplantation. Conclusions CEC-like cells could adapt to the microenvironment and had a good therapeutic effect after being transplanted into the monkey endothelial dysfunction model during long-term observation. This study provided a promising prospect of cell-based therapy for corneal endothelial dysfunction and may be clinically applied in regenerative medicine in the future.


2021 ◽  
Vol 30 ◽  
pp. 096368972110178
Author(s):  
Lin Shen ◽  
Peng Sun ◽  
Liqun Du ◽  
Jing Zhu ◽  
Chengqun Ju ◽  
...  

Corneal endothelial dysfunction is a principal cause of visual deficiency. Corneal transplantation is the most effective treatment for corneal endothelial dysfunction. However, a severe shortage of available donor corneas or human corneal endothelial cells (HCECs) remains a global challenge. Previously, we acquired corneal endothelial cell-like cells (CEC-like cells) derived from human skin-derived precursors (SKPs). CEC-like cells were injected into rabbit and monkey corneal endothelial dysfunction models and exerted excellent therapeutic effect. In this study, we prolonged the clinical observation in the monkey experiment for 2 years. Polymerase chain reaction (PCR) and DNA sequencing were carried out to confirm the existence of CEC-like cells. Histological examinations were carried out to show the corneal morphology. Further transcriptome sequencing was also carried out on HCEC, CEC-like cells before transplantation and after transplantation. We found that the monkeys cornea remained transparent and normal thickness. The total endothelial cell density decreased gradually, but tended to be stable and remained in a normal range during 2-year observation. The CEC-like cells persist during observation and could adapt to the microenvironment after transplantation. The gene expression pattern of CEC-like cells was similar to HCEC and changed slightly after transplantation. In conclusion, this study presented a brand-new insight into CEC-like cells and further provided a promising prospect of cell-based therapy for corneal endothelial dysfunction. The renewable cell source, novel derivation method and simple treatment strategy may be clinically applied in regenerative medicine in the future.


2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Naoki Okumura ◽  
Yuji Sakamoto ◽  
Keita Fujii ◽  
Junji Kitano ◽  
Shinichiro Nakano ◽  
...  

2020 ◽  
Author(s):  
Lin Shen ◽  
Peng Sun ◽  
Liqun Du ◽  
Jing Zhu ◽  
Chengqun Ju ◽  
...  

Abstract Background Corneal endothelial dysfunction is a principal cause of visual deficiency. Corneal transplantation is the most effective treatment for corneal endothelial dysfunction. However, a severe shortage of available donor corneas remains a global challenge. Previously, we acquired corneal endothelial cell-like cells (CEC-like cells) derived from skin-derived precursors (SKPs). CEC-like cells exerted excellent therapeutic effect in rabbit and monkey corneal endothelial dysfunction models. Method: We prolonged the observation in the monkey experiment for 2 years. Further transcriptome sequencing was also carried out on HCEC, CEC-like cells before transplantation and after transplantation. Results We confirmed that the monkey cornea remained transparent and the CEC-like cells could adapt to the microenvironment after transplantation. The gene expression pattern of CEC-like cells was similar to HCEC and changed slightly after transplantation. Conclusions This study presented a brand-new insight into CEC-like cells and further provided a promising prospect of cell-based therapy for corneal endothelial dysfunction. The renewable cell source, novel derivation method and simple treatment strategy may be clinically applied in regenerative medicine in the future.


2015 ◽  
pp. 135-135
Author(s):  
Noriko Koizumi ◽  
Shigeru Kinoshita ◽  
Naoki Okumura

2018 ◽  
Vol 10 ◽  
pp. 251584141881580 ◽  
Author(s):  
Sepehr Feizi

A transparent cornea is essential for the formation of a clear image on the retina. The human cornea is arranged into well-organized layers, and each layer plays a significant role in maintaining the transparency and viability of the tissue. The endothelium has both barrier and pump functions, which are important for the maintenance of corneal clarity. Many etiologies, including Fuchs’ endothelial corneal dystrophy, surgical trauma, and congenital hereditary endothelial dystrophy, lead to endothelial cell dysfunction. The main treatment for corneal decompensation is replacement of the abnormal corneal layers with normal donor tissue. Nowadays, the trend is to perform selective endothelial keratoplasty, including Descemet stripping automated endothelial keratoplasty and Descemet’s membrane endothelial keratoplasty, to manage corneal endothelial dysfunction. This selective approach has several advantages over penetrating keratoplasty, including rapid recovery of visual acuity, less likelihood of graft rejection, and better patient satisfaction. However, the global limitation in the supply of donor corneas is becoming an increasing challenge, necessitating alternatives to reduce this demand. Consequently, in vitro expansion of human corneal endothelial cells is evolving as a sustainable choice. This method is intended to prepare corneal endothelial cells in vitro that can be transferred to the eye. Herein, we describe the etiologies and manifestations of human corneal endothelial cell dysfunction. We also summarize the available options for as well as recent developments in the management of corneal endothelial dysfunction.


2011 ◽  
Vol 34 (1-2) ◽  
pp. 55-57 ◽  
Author(s):  
Shivani A. Kasbekar ◽  
Jose A. Gonzalez-Martin ◽  
Ayad E. Shafiq ◽  
Arvind Chandna ◽  
Colin E. Willoughby

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