1. Superiority of Mature Differentiated Cultured Human Corneal Endothelial Cell Injection Therapy for Corneal Endothelial Failure.
- Author
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Ueno M, Toda M, Numa K, Tanaka H, Imai K, Bush J, Teramukai S, Okumura N, Koizumi N, Yamamoto A, Tanaka M, Sotozono C, Hamuro J, and Kinoshita S
- Subjects
- Cell Count, Cell Differentiation, Cells, Cultured, Endothelial Cells, Humans, Cornea, Endothelium, Corneal
- Abstract
Purpose: To investigate the safety and efficacy of cultured human corneal endothelial cell (hCEC) injection therapy with mature differentiated (mature) cell subpopulations (SPs) for corneal endothelial failure (CEF)., Design: Comparative, interventional case series., Methods: This study involved 18 eyes with CEF that underwent cultured hCEC injection therapy, categorized into 2 groups: (1) 11 eyes administered a relatively lower proportion (0.1 to 76.3%) of mature cell SPs (group 1 [Gr1]), and (2) 7 eyes administered a relatively higher proportion (>90%) of mature cell SPs (group 2 [Gr2]). From 1 week to 3 years postoperation, corneal endothelial cell (CEC) density (CECD), central corneal thickness (CCT), and best-corrected visual acuity (BCVA) were recorded, and the CEC parameter's "spring constant" was calculated. The proportion of mature SPs was evaluated by fluorescence-activated cell sorting analysis based on cell-surface markers., Results: At 3 years postoperation, corneal restoration with improved BCVA was attained in 10 of the 11 Gr1 eyes and all Gr2 eyes, the median CECD in Gr2 (3083 cells/mm
2 ; range, 2182-4417 cells/mm2 ) was higher than that in Gr1 (1349 cells/mm2 ; range, 746-2104 cells/mm2 ) (P < .001), and the spring constant verified the superiority of the mature cultured hCECs. From 24 weeks through 3 years postoperation, the median percentage of CECD decrease was 3.2% in Gr2 and 23.6% in Gr1 (P < .005). CCT recovery was prompt and constant in Gr2, while diverse in Gr1. No adverse events were observed., Conclusion: Our findings showed that mature cell SPs for hCEC injection therapy provide rapid recovery of CCT, better CECD, and low CECD attrition over 3 years postsurgery., (Copyright © 2021 The Author(s). Published by Elsevier Inc. All rights reserved.)- Published
- 2022
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