[Experimental stem cell replacement transplantation in retinal pigment epithelium atrophy].

Autor:	Neroeva NV; Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia., Neroev VV; Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia., Katargina LA; Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia., Ryabina MV; Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia., Ilyukhin PA; Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia., Karmokova AG; Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia., Losanova OA; Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia., Maybogin AM; Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia., Kharitonov AE; Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow, Russia., Eremeev AV; Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow, Russia., Lagarkova MA; Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow, Russia.
Jazyk:	English; Russian
Zdroj:	Vestnik oftalmologii [Vestn Oftalmol] 2022; Vol. 138 (3), pp. 7-15.
DOI:	10.17116/oftalma20221380317
Abstrakt:	Purpose: To develop and evaluate the results of the modified surgical technique for transplantation of retinal pigment epithelium (RPE) differentiated from human induced pluripotent stem cells (iPSC-RPE) in the form of a cell suspension into the subretinal space of rabbits with previously induced RPE atrophy. Material and Methods: The study was conducted on 10 New Zealand albino rabbits (20 eyes). One month after modeling RPE atrophy and retinal degeneration, rabbits were subjected to subretinal transplantation of iPSC-RPE cells in the form of a cell suspension. To prevent reflux of iPSC-RPE into the vitreal cavity, the injection site was sealed with 2-3 drops of autologous platelet-rich plasma (PRP). All rabbits underwent spectral optical coherence tomography (SOCT) and autofluorescence studies on the Heidelberg Spectralis system («Heidelberg Engineering», Germany). Enucleated animal eyes were studied with morphological and immunohistochemical methods. Results: In this study we developed and evaluated a modified surgical technique of transplantation of iPSC-RPE in the form of a cell suspension into the subretinal space of rabbits with induced RPE atrophy. It was found that the use of PRP helps seal the defect and prevents cell suspension reflux into the vitreous cavity, effectively minimizing intra- and postoperative complications. Morphological in vivo study and examination of histological sections showed that implantable iPSC-RPEs were correctly integrated and adhered to the choroid in the surgery site. Immunohistochemical analysis involving fluorescence-marked antibodies confirmed the survival of iPSC-RPE integrated into the retina of model animals. Conclusion: This method improves the technology of iPSC-RPE transplantation on preclinical stages of the study, revealing new prospects in the treatment of degenerative diseases of the retina and the possibility of a personalized approach.
Databáze:	MEDLINE
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