Transplanted embryonic retinal stem cells have the potential to repair the injured retina in mice
Abstract Background Stem cell transplantation has been reported as one of the promising strategies to treat retinal degenerative diseases. But, the application and the role of retina stem cells (RSCs) in the treatment of patients with retinal degenerative diseases have not been fully revealed. This...
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doaj-60d95acdb3094e0fb7fce2df9387170a2021-01-10T12:32:05ZengBMCBMC Ophthalmology1471-24152021-01-0121111110.1186/s12886-020-01795-1Transplanted embryonic retinal stem cells have the potential to repair the injured retina in miceXia Feng0Peng Chen1Xin Zhao2Jing Wang3Hong Wang4Department of Ophthalmology, Shandong Provincial Western Hospital, Shandong Provincial ENT HospitalDepartment of Ophthalmology, Shandong Provincial Western Hospital, Shandong Provincial ENT HospitalDepartment of Ophthalmology, Shandong Provincial Western Hospital, Shandong Provincial ENT HospitalDepartment of Ophthalmology, Shandong Provincial Western Hospital, Shandong Provincial ENT HospitalDepartment of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityAbstract Background Stem cell transplantation has been reported as one of the promising strategies to treat retinal degenerative diseases. But, the application and the role of retina stem cells (RSCs) in the treatment of patients with retinal degenerative diseases have not been fully revealed. This study aimed to investigate the potential role of transplantation of the embryo-derived RSCs into the vitreous cavity in repairing the damaged retina in mice. Methods RSCs were isolated from Kunming mice E17 embryonic retina and ciliary body tissues, and labeled with 5-bromo-2’-deoxyuridin (BrdU). Retinal optic nerve crush injury was induced in left eyes in male Kunming mice by ring clamping the optic nerve. The 6th -generation of BrdU-labeled RSCs were transplanted into the damaged retina by the intravitreal injection, and saline injected eyes were used as the control. Hematoxylin and eosin histological staining, and BrdU, Nestin and Pax6 immunostaining were performed. Electroretinogram (ERG) was used for assessing the electrical activity of the retina. Results Embryo-derived RSCs were identified by the positive stains of Pax6 and Nestin. BrdU incorporation was detected in the majority of RSCs. The damaged retina showed cellular nuclear disintegration and fragmentation in the retinal tissue which progressed over the periods of clamping time, and decreased amplitudes of a and b waves in ERG. In the damaged retina with RSCs transplantation, the positive staining for BrdU, Pax6 and Nestin were revealed on the retinal surface. Notably, RSCs migrated into the retinal ganglion cell layer and inner nuclear. Transplanted RSCs significantly elevated the amplitudes of a waves in retina injured eyes. Conclusions Embryonic RSCs have similar characteristics to neural stem cells. Transplantation of RSCs by intravitreal injection would be able to repair the damaged retina.https://doi.org/10.1186/s12886-020-01795-1Retinal stem cellRetinal injury miceTransplantationIntravitreal injection |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xia Feng Peng Chen Xin Zhao Jing Wang Hong Wang |
spellingShingle |
Xia Feng Peng Chen Xin Zhao Jing Wang Hong Wang Transplanted embryonic retinal stem cells have the potential to repair the injured retina in mice BMC Ophthalmology Retinal stem cell Retinal injury mice Transplantation Intravitreal injection |
author_facet |
Xia Feng Peng Chen Xin Zhao Jing Wang Hong Wang |
author_sort |
Xia Feng |
title |
Transplanted embryonic retinal stem cells have the potential to repair the injured retina in mice |
title_short |
Transplanted embryonic retinal stem cells have the potential to repair the injured retina in mice |
title_full |
Transplanted embryonic retinal stem cells have the potential to repair the injured retina in mice |
title_fullStr |
Transplanted embryonic retinal stem cells have the potential to repair the injured retina in mice |
title_full_unstemmed |
Transplanted embryonic retinal stem cells have the potential to repair the injured retina in mice |
title_sort |
transplanted embryonic retinal stem cells have the potential to repair the injured retina in mice |
publisher |
BMC |
series |
BMC Ophthalmology |
issn |
1471-2415 |
publishDate |
2021-01-01 |
description |
Abstract Background Stem cell transplantation has been reported as one of the promising strategies to treat retinal degenerative diseases. But, the application and the role of retina stem cells (RSCs) in the treatment of patients with retinal degenerative diseases have not been fully revealed. This study aimed to investigate the potential role of transplantation of the embryo-derived RSCs into the vitreous cavity in repairing the damaged retina in mice. Methods RSCs were isolated from Kunming mice E17 embryonic retina and ciliary body tissues, and labeled with 5-bromo-2’-deoxyuridin (BrdU). Retinal optic nerve crush injury was induced in left eyes in male Kunming mice by ring clamping the optic nerve. The 6th -generation of BrdU-labeled RSCs were transplanted into the damaged retina by the intravitreal injection, and saline injected eyes were used as the control. Hematoxylin and eosin histological staining, and BrdU, Nestin and Pax6 immunostaining were performed. Electroretinogram (ERG) was used for assessing the electrical activity of the retina. Results Embryo-derived RSCs were identified by the positive stains of Pax6 and Nestin. BrdU incorporation was detected in the majority of RSCs. The damaged retina showed cellular nuclear disintegration and fragmentation in the retinal tissue which progressed over the periods of clamping time, and decreased amplitudes of a and b waves in ERG. In the damaged retina with RSCs transplantation, the positive staining for BrdU, Pax6 and Nestin were revealed on the retinal surface. Notably, RSCs migrated into the retinal ganglion cell layer and inner nuclear. Transplanted RSCs significantly elevated the amplitudes of a waves in retina injured eyes. Conclusions Embryonic RSCs have similar characteristics to neural stem cells. Transplantation of RSCs by intravitreal injection would be able to repair the damaged retina. |
topic |
Retinal stem cell Retinal injury mice Transplantation Intravitreal injection |
url |
https://doi.org/10.1186/s12886-020-01795-1 |
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