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000289899 041__ $$aEnglish
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000289899 1001_ $$aStranak, Zbynek$$b0
000289899 245__ $$aFeasibility of Direct Vitrectomy-Sparing Subretinal Injection for Gene Delivery in Large Animals.
000289899 260__ $$aAbingdon$$bTaylor & Francis Group$$c2024
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000289899 520__ $$aTo assess the safety and feasibility of direct vitrectomy-sparing subretinal injection for gene delivery in a large animal model.The experimental Liběchov minipigs were used for subretinal delivery of a plasmid DNA vector (pS/MAR-CMV-copGFP) with cytomegalovirus (CMV) promoter, green fluorescent protein (GFP) reporter (copGFP) and a scaffold/matrix attachment region (S/MAR) sequence. The eyes were randomized to subretinal injection of the vector following pars plana vitrectomy (control group) or a direct injection without prior vitrectomy surgery (experimental group). Intra- and post-operative observations up to 30 days after surgery were compared.Six eyes of three mini-pigs underwent surgery for delivery into the subretinal space. Two eyes in the control group were operated with a classical approach (lens-sparing vitrectomy and posterior hyaloid detachment). The other four eyes in the experimental group were injected directly with a subretinal cannula without vitrectomy surgery. No adverse events, such as endophthalmitis, retinal detachment and intraocular pressure elevation were observed post-operatively. The eyes in the experimental group had both shorter surgical time and recovery while achieving the same surgical goal.This pilot study demonstrates that successful subretinal delivery of gene therapy vectors is achievable using a direct injection without prior vitrectomy surgery.
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000289899 650_7 $$2Other$$aSubretinal injection
000289899 650_7 $$2Other$$alarge animal
000289899 650_7 $$2Other$$anon-viral gene vector
000289899 650_7 $$2Other$$apars plana vitrectomy
000289899 650_7 $$2Other$$asafety
000289899 7001_ $$aArdan, Taras$$b1
000289899 7001_ $$aNemesh, Yaroslav$$b2
000289899 7001_ $$aToms, Maria$$b3
000289899 7001_ $$aToualbi, Lyes$$b4
000289899 7001_ $$0P:(DE-He78)15dff5647002b4dcfe892b251cd14b62$$aHarbottle, Richard$$b5$$udkfz
000289899 7001_ $$aEllederova, Zdenka$$b6
000289899 7001_ $$aLytvynchuk, Lyubomyr$$b7
000289899 7001_ $$aPetrovski, Goran$$b8
000289899 7001_ $$aMotlik, Jan$$b9
000289899 7001_ $$aMoosajee, Mariya$$b10
000289899 7001_ $$aKozak, Igor$$b11
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