Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The use of trehalose-treated freeze-dried amniotic membrane for ocular surface reconstruction
AU - Nakamura, Takahiro
AU - Sekiyama, Eiichi
AU - Takaoka, Maho
AU - Bentley, Adam James
AU - Yokoi, Norihiko
AU - Fullwood, Nigel J.
AU - Kinoshita, Shigeru
PY - 2008/9
Y1 - 2008/9
N2 - The aim of this study was to evaluate the efficacy and safety of trehalose-treated freeze-dried amniotic membrane (TT-FDAM) for ocular surface reconstruction. Human AM deprived of amniotic epithelial cells was first incubated with 10% trehalose solution, and then freeze-dried, vacuum-packed, and sterilized with gamma-irradiation. The resultant newly developed TT-FDAM was characterized for its physical, biological, and morphological properties by comprehensive physical assays, immunohistochemistry, electron microscopy, cell adhesion assay, 3D cell culture, and an in vivo biocompatibility test. The adaptability of TT-FDAM was markedly improved as compared to FDAM. Immunohistochemistry for several extracellular matrix molecules revealed that the process of freeze-drying and irradiation apparently did not affect its biological properties, however, electron microscopy revealed that the detailed morphological appearance of TT-FDAM is more similar to that of native AM than to FDAM, Intracorneal and scleral-surface transplantation of TT-FDAM showed excellent biocompatibility with ocular surface tissues. Thus, TT-FDAM retained most of the physical, biological, and morphological characteristics of native AM, consequently it is a useful biomaterial for ocular surface reconstruction. (C) 2008 Published by Elsevier Ltd.
AB - The aim of this study was to evaluate the efficacy and safety of trehalose-treated freeze-dried amniotic membrane (TT-FDAM) for ocular surface reconstruction. Human AM deprived of amniotic epithelial cells was first incubated with 10% trehalose solution, and then freeze-dried, vacuum-packed, and sterilized with gamma-irradiation. The resultant newly developed TT-FDAM was characterized for its physical, biological, and morphological properties by comprehensive physical assays, immunohistochemistry, electron microscopy, cell adhesion assay, 3D cell culture, and an in vivo biocompatibility test. The adaptability of TT-FDAM was markedly improved as compared to FDAM. Immunohistochemistry for several extracellular matrix molecules revealed that the process of freeze-drying and irradiation apparently did not affect its biological properties, however, electron microscopy revealed that the detailed morphological appearance of TT-FDAM is more similar to that of native AM than to FDAM, Intracorneal and scleral-surface transplantation of TT-FDAM showed excellent biocompatibility with ocular surface tissues. Thus, TT-FDAM retained most of the physical, biological, and morphological characteristics of native AM, consequently it is a useful biomaterial for ocular surface reconstruction. (C) 2008 Published by Elsevier Ltd.
KW - trehalose
KW - amniotic membrane
KW - freeze-dry
KW - ocular surface reconstruction
KW - biocompatibility
KW - LIMBAL EPITHELIAL-CELLS
KW - STEM/PROGENITOR CELLS
KW - TRANSPLANTATION
KW - CORNEAL
KW - IDENTIFICATION
KW - SUPPRESSION
KW - MATRIX
UR - http://www.scopus.com/inward/record.url?scp=46749120932&partnerID=8YFLogxK
U2 - 10.1016/j.biomaterials.2008.05.023
DO - 10.1016/j.biomaterials.2008.05.023
M3 - Journal article
VL - 29
SP - 3729
EP - 3737
JO - Biomaterials
JF - Biomaterials
SN - 0142-9612
IS - 27
ER -