| RRC ID |
61378
|
| 著者 |
Takezawa T, Nishikawa K, Wang PC.
|
| タイトル |
Development of a human corneal epithelium model utilizing a collagen vitrigel membrane and the changes of its barrier function induced by exposing eye irritant chemicals.
|
| ジャーナル |
Toxicol In Vitro
|
| Abstract |
The brief TEER (trans-epithelial electrical resistance) assay after exposing chemicals to corneal epithelium in vivo is known as a suitable method for evaluating corneal irritancy and permeability quantitatively and continuously. A collagen vitrigel membrane we previously developed is a thin (about 20 μm thick) and transparent membrane composed of high density collagen fibrils equivalent to connective tissues in vivo, e.g. corneal Bowman's membrane. To develop such a TEER assay system in vitro utilizing a human corneal epithelial model, HCE-T cells (a human corneal epithelial cell line) were cultured on the collagen vitrigel membrane substratum prepared in a Millicell chamber suitable for TEER measurement. Human corneal epithelium model possessing 5-6 cell layers sufficient for TEER assay was successfully reconstructed on the substratum in the Millicell chamber by culturing the cells in monolayer for 2 days and subsequently in air-liquid interface for 7 days. The exposure of chemicals to the model induced the time-dependent relative changes of TEER in response to the characteristic of each chemical within a few minutes. These results suggest that the TEER assay using the human corneal epithelial model is very useful for an ocular irritancy evaluation as an alternative to the Draize eye irritation test.
|
| 巻・号 |
25(6)
|
| ページ |
1237-41
|
| 公開日 |
2011-9-1
|
| DOI |
10.1016/j.tiv.2011.05.021
|
| PII |
S0887-2333(11)00157-3
|
| PMID |
21641988
|
| MeSH |
Bowman Membrane / metabolism
Cell Line
Collagen Type I / metabolism*
Electric Impedance
Epithelium, Corneal / metabolism*
Gels
Humans
Irritants / pharmacokinetics
Irritants / toxicity*
Membranes, Artificial
Permeability
Time Factors
Toxicity Tests / methods*
|
| IF |
2.959
|
| リソース情報 |
| ヒト・動物細胞 |
HCE-T(RCB2280) |
