Transdifferentiation of chicken retinal pigmented epithelial cells in serum-free culture.

Abstract:

:A serum-free culture of chicken retinal pigmented epithelial cells has been established in order to analyse how cell-substrate interactions or environmental factors affect the process of transdifferentiation into lens cells from pigmented epithelial cells. The serum-free culture medium for chicken pigmented epithelial cells was Eagle's minimum essential medium, supplemented with chicken transferrin, soybean trypsin inhibitor and bovine insulin. Pigmented epithelial cells were able to survive and grow in the medium for longer than 2 weeks. Collagen did not promote initial cell attachment, but this material effectively supports pigmented epithelial cells to organize monolayer structure characteristics to pigmented epithelium in situ in comparison with the plastic substrate of culture dishes. The process of lens transdifferentiation of chicken pigmented epithelial cells in serum-free conditions was also enhanced with the aid of phenylthiourea and testicular hyaluronidase, which had already been known to promote the transdifferentiation of pigmented epithelial cells in the serum-supplemented condition. Typical lentoid bodies were developed after about 2 weeks of serum-free culture. Thus, we can clearly demonstrate that the chicken embryonic pigmented epithelial cells do not always require a full set of serum factors for their transdifferentiation to lens cells in vitro.

journal_name

Exp Eye Res

authors

Kosaka J,Watanabe K,Eguchi G

doi

10.1016/0014-4835(92)90190-4

keywords:

subject

Has Abstract

pub_date

1992-08-01 00:00:00

pages

261-7

issue

2

eissn

0014-4835

issn

1096-0007

pii

0014-4835(92)90190-4

journal_volume

55

pub_type

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