Vision incapacitation and blindness associated with incurable retinal degeneration affect millions of people worldwide. In this study, 0.25×10(6) human bone marrow stem cells (hBM-MSCs) were transplanted epiretinally in the right eye of Royal College Surgeons (RCS) rats at the age of 28 days. Epiretinally transplanted cells were identified as a thin layer of cells along vitreous cavity, in close proximity to the retina or attached to the lens capsule, up to 6 weeks following transplantation. Epiretinal transplantation delayed photoreceptor degeneration and rescued retinal function up to 20 weeks following cell transplantation. Visual functions remained close to normal levels in epiretinal transplantation rats. No inflammation or any other adverse effects were observed in transplanted eyes. Our findings suggest that transplantation of hBM-MSCs as a thin epiretinal layer is effective for treatment of retinal degeneration in RCS rats, and that transplanting the cells in close proximity to the retina enhances hBM-MSC therapeutic effect compared with intravitreal injection.
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http://dx.doi.org/10.1016/j.scr.2015.08.007 | DOI Listing |
Stem Cell Res Ther
December 2024
Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
Background: Mesenchymal stem cells may have neuroprotective and tissue regenerative capabilities and the potential to rescue retinal degeneration in chorioretinal diseases including myopic chorioretinal atrophy. Transplantation of human (allogeneic) adipose tissue-derived mesenchymal stem cell (adMSC) suspensions has been clinically conducted to treat retinal degenerative diseases. However, serious side effects including proliferative vitreoretinopathy and epiretinal membrane formation have been reported.
View Article and Find Full Text PDFNiger J Clin Pract
November 2024
Department of Ophthalmology, Guiness Eye Center, Nnamdi Azikiwe University, Awka, Anambra, Nigeria.
Background: Macular holes are an infrequent association with rhegmatogenous retinal detachment, increasing the complexity of surgery and affecting outcome.
Aim: To report the visual outcome, macular hole (MH) closure, and retinal reattachment rate after vitrectomy with silicone oil plus different MH closure techniques for MH associated with rhegmatogenous retinal detachment and to compare the visual outcome between the techniques.
Materials And Methods: A retrospective, comparative study.
Ocul Immunol Inflamm
November 2024
Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada.
Purpose: To report a case of cytomegalovirus (CMV)-related hemorrhagic retinal vasculitis in a patient with multiple myeloma (MM) on daratumumab, a trial cereblon E3 ligase modulatory drug (CELMoD), dexamethasone, and acyclovir, and discuss clinical implications for CMV prophylaxis.
Methods: Case report, narrative review of CMV reactivation risk in MM patients on daratumumab and antiviral agent efficacy for CMV prophylaxis.
Results: A 63-year-old female presented with 3 days of progressive unilateral vision loss in the right eye to the level of counting fingers.
J Vitreoretin Dis
July 2024
Hospital Nuestra Señora de la Luz, IAP, Ciudad de México, México.
To describe the structural features of the autologous retinal transplant donor tissue area seen on optical coherence tomography (OCT). This observational prospective study included patients who had vitrectomy and autologous retinal graft surgery for a macular hole. OCT of the donor area was performed in the postoperative period after gas reabsorption (mean, 16.
View Article and Find Full Text PDFGraefes Arch Clin Exp Ophthalmol
September 2024
Departamento de Oftalmologia, Unidade Local de Saúde Santa Maria, Lisboa, Portugal.
Purpose: To analyze anatomical and functional outcomes of cryopreserved human amniotic membrane (hAM) transplant in refractory macular hole (MH) surgery, present retinal layers structure after MH closure, identify visual acuity improvement determinants and complication rate.
Methods: Prospective and interventional case series including seventeen patients: 13 refractory and 4 chronic (8, 15, 18 and 30-years) MH. All patients underwent vitrectomy, hAM subretinal transplant, tamponade and positioning.
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