Corneal surface reconstruction for the chemical injured eye by transplanting autologous cultivated limbal epithelial sheet “Nepic®”

Background: “Nepic®” (Japan Tissue Engineering Co., Ltd., Gamagori, Japan) is an autologous cultivated limbal epithelial sheet, approved in 2020 in Japan for the reconstruction of the corneal surface in cases of limbal stem cell deficiency (LSCD). Because the surgical procedure known as cultivated l...

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Main Authors: Daisuke Kato, Koji Hirano, Atsuhiro Tanikawa, Yasuki Ito
Format: Article
Language:English
Published: Fujita Medical Society 2025-08-01
Series:Fujita Medical Journal
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Online Access:https://www.jstage.jst.go.jp/article/fmj/11/3/11_2024-031/_pdf/-char/en
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author Daisuke Kato
Koji Hirano
Atsuhiro Tanikawa
Yasuki Ito
author_facet Daisuke Kato
Koji Hirano
Atsuhiro Tanikawa
Yasuki Ito
author_sort Daisuke Kato
collection DOAJ
description Background: “Nepic®” (Japan Tissue Engineering Co., Ltd., Gamagori, Japan) is an autologous cultivated limbal epithelial sheet, approved in 2020 in Japan for the reconstruction of the corneal surface in cases of limbal stem cell deficiency (LSCD). Because the surgical procedure known as cultivated limbal epithelial cell sheet transplantation (CLET) has only recently been introduced and the number of cases remains limited, accumulating clinical experience is essential to ensure the safety and success of this procedure. Herein, we report the clinical course of a patient with unilateral LSCD who underwent CLET for a corneal surface reconstruction using Nepic®. Case presentation: A 50-year-old man sustained bilateral eye injuries from mortar during construction work. The patient’s right cornea exhibited LSCD. Initial treatment involved a 360° limbal transplantation with an allo-corneal graft at a university hospital. However, graft rejection occurred, and the corneal surface was subsequently covered by conjunctival tissue within 2 months. Because the patient’s left cornea and conjunctiva appeared healthy, we performed CLET with Nepic® 3 years after the limbal transplantation. Conclusions: When using Nepic®, it is essential to become accustomed to handling the cultivated epithelial sheet on the ring-shaped holder; however, cultivated corneal epithelium transplantation can also be performed without the carrier material, but rather as a sheet. Though the corneal surface appeared smooth and shiny at 7 months postoperatively, we seek to determine whether the epithelial cells on the patient’s cornea are of corneal or conjunctival origin without resorting to invasive procedures, such as biopsy.
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spelling doaj-art-dab6442faae3452d91f59845649ca7112025-08-20T02:47:31ZengFujita Medical SocietyFujita Medical Journal2189-72472189-72552025-08-01113142145https://doi.org/10.20407/fmj.2024-031Corneal surface reconstruction for the chemical injured eye by transplanting autologous cultivated limbal epithelial sheet “Nepic®”Daisuke Kato0Koji Hirano1Atsuhiro Tanikawa2Yasuki Ito3Department of Ophthalmology, Fujita Health University, School of MedicineDepartment of Ophthalmology, Fujita Health University, School of Medicine; Department of Ophthalmology, TOYOTA Memorial HospitalDepartment of Ophthalmology, Fujita Health University Bantane HospitalDepartment of Ophthalmology, Fujita Health University, School of MedicineBackground: “Nepic®” (Japan Tissue Engineering Co., Ltd., Gamagori, Japan) is an autologous cultivated limbal epithelial sheet, approved in 2020 in Japan for the reconstruction of the corneal surface in cases of limbal stem cell deficiency (LSCD). Because the surgical procedure known as cultivated limbal epithelial cell sheet transplantation (CLET) has only recently been introduced and the number of cases remains limited, accumulating clinical experience is essential to ensure the safety and success of this procedure. Herein, we report the clinical course of a patient with unilateral LSCD who underwent CLET for a corneal surface reconstruction using Nepic®. Case presentation: A 50-year-old man sustained bilateral eye injuries from mortar during construction work. The patient’s right cornea exhibited LSCD. Initial treatment involved a 360° limbal transplantation with an allo-corneal graft at a university hospital. However, graft rejection occurred, and the corneal surface was subsequently covered by conjunctival tissue within 2 months. Because the patient’s left cornea and conjunctiva appeared healthy, we performed CLET with Nepic® 3 years after the limbal transplantation. Conclusions: When using Nepic®, it is essential to become accustomed to handling the cultivated epithelial sheet on the ring-shaped holder; however, cultivated corneal epithelium transplantation can also be performed without the carrier material, but rather as a sheet. Though the corneal surface appeared smooth and shiny at 7 months postoperatively, we seek to determine whether the epithelial cells on the patient’s cornea are of corneal or conjunctival origin without resorting to invasive procedures, such as biopsy.https://www.jstage.jst.go.jp/article/fmj/11/3/11_2024-031/_pdf/-char/enchemical injurycultivated limbal epithelial cell sheet transplantation (clet)nepic®unilateral limbal stem cell deficiency
spellingShingle Daisuke Kato
Koji Hirano
Atsuhiro Tanikawa
Yasuki Ito
Corneal surface reconstruction for the chemical injured eye by transplanting autologous cultivated limbal epithelial sheet “Nepic®”
Fujita Medical Journal
chemical injury
cultivated limbal epithelial cell sheet transplantation (clet)
nepic®
unilateral limbal stem cell deficiency
title Corneal surface reconstruction for the chemical injured eye by transplanting autologous cultivated limbal epithelial sheet “Nepic®”
title_full Corneal surface reconstruction for the chemical injured eye by transplanting autologous cultivated limbal epithelial sheet “Nepic®”
title_fullStr Corneal surface reconstruction for the chemical injured eye by transplanting autologous cultivated limbal epithelial sheet “Nepic®”
title_full_unstemmed Corneal surface reconstruction for the chemical injured eye by transplanting autologous cultivated limbal epithelial sheet “Nepic®”
title_short Corneal surface reconstruction for the chemical injured eye by transplanting autologous cultivated limbal epithelial sheet “Nepic®”
title_sort corneal surface reconstruction for the chemical injured eye by transplanting autologous cultivated limbal epithelial sheet nepic r
topic chemical injury
cultivated limbal epithelial cell sheet transplantation (clet)
nepic®
unilateral limbal stem cell deficiency
url https://www.jstage.jst.go.jp/article/fmj/11/3/11_2024-031/_pdf/-char/en
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AT kojihirano cornealsurfacereconstructionforthechemicalinjuredeyebytransplantingautologouscultivatedlimbalepithelialsheetnepic
AT atsuhirotanikawa cornealsurfacereconstructionforthechemicalinjuredeyebytransplantingautologouscultivatedlimbalepithelialsheetnepic
AT yasukiito cornealsurfacereconstructionforthechemicalinjuredeyebytransplantingautologouscultivatedlimbalepithelialsheetnepic