001     164106
005     20240611120547.0
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037 _ _ |a DZNE-2022-00769
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Gasparini, Sylvia J
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245 _ _ |a Transplanted human cones incorporate and function in a murine cone degeneration model.
260 _ _ |a Ann Arbor, Mich.
|c 2022
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520 _ _ |a Once human photoreceptors die, they do not regenerate, thus photoreceptor transplantation has emerged as a potential treatment approach for blinding diseases. Improvements in transplant organization, donor cell maturation and synaptic connectivity to the host will be critical in advancing this technology to clinical practice. Unlike the unstructured grafts of prior cell suspension transplantations into end-stage degeneration models, we describe extensive incorporation of iPSC retinal organoid-derived human photoreceptors into mice with cone dysfunction. This incorporative phenotype was validated in both cone-only as well as pan-photoreceptor transplantations. Rather than forming a glial barrier, Müller cells extended throughout the graft, even forming a series of adherens junctions between mouse and human cells, reminiscent of an outer limiting membrane. Donor-host interaction appeared to promote polarisation as well as development of morphological features critical for light detection, namely formation of inner and well stacked outer segments oriented towards the retinal pigment epithelium. Putative synapse formation and graft function was evident both at a structural and electrophysiological level. Overall, these results show that human photoreceptors interact readily with a partially degenerated retina. Moreover, incorporation into the host retina appears to be beneficial to graft maturation, polarisation and function.
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650 _ 7 |a Human stem cells
|2 Other
650 _ 7 |a Retinopathy
|2 Other
650 _ 7 |a Stem cell transplantation
|2 Other
650 _ 7 |a Stem cells
|2 Other
650 _ 7 |a Transplantation
|2 Other
650 _ 2 |a Animals
|2 MeSH
650 _ 2 |a Ependymoglial Cells
|2 MeSH
650 _ 2 |a Humans
|2 MeSH
650 _ 2 |a Induced Pluripotent Stem Cells: transplantation
|2 MeSH
650 _ 2 |a Mice
|2 MeSH
650 _ 2 |a Photoreceptor Cells, Vertebrate: metabolism
|2 MeSH
650 _ 2 |a Retina: metabolism
|2 MeSH
650 _ 2 |a Retinal Cone Photoreceptor Cells
|2 MeSH
650 _ 2 |a Retinal Degeneration: metabolism
|2 MeSH
650 _ 2 |a Retinal Degeneration: therapy
|2 MeSH
700 1 _ |a Tessmer, Karen
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700 1 _ |a Reh, Miriam
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700 1 _ |a Wieneke, Stephanie
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700 1 _ |a Carido, Madalena
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700 1 _ |a Völkner, Manuela
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700 1 _ |a Borsch, Oliver
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700 1 _ |a Swiersy, Anka
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700 1 _ |a Zuzic, Marta
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700 1 _ |a Goureau, Olivier
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700 1 _ |a Kurth, Thomas
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700 1 _ |a Busskamp, Volker
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700 1 _ |a Zeck, Günther
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700 1 _ |a Karl, Mike Oliver
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700 1 _ |a Ader, Marius
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773 _ _ |a 10.1172/JCI154619
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