Inductive capacity of living eye tissues from adult frogs.
Differentiation
; 61(4): 237-42, 1997 May.
Article
em En
| MEDLINE
| ID: mdl-9203346
ABSTRACT
The aim of the present work has been to demonstrate the inducing capacity of living homogenous undamaged tissues from adult frogs. Tissues from the eyes of adult frogs Xenopus laevis retina (R), pigmented epithelium (PE), lens epithelium (LE), and the forebrain (B) as a control, were tested for their inducing capacity using early gastrula ectoderm. To exclude the possibility of ad-mixture of inducing cells in early gastrula ectoderm the transfilter induction technique was used throughout. The results show that the tissues used in the cases of most intense induction tended to induce similar cell types both R and PE induce R + PE together with adjoining neural cells and secondary lens cells. LE induces lentoids (L) and B cells induce neuroids. In each case epidermis surrounds the explants filled with ectomesenchyme (EM) and melanophores (M). Immunofluorescence reactions clarified the nature of lens cells. This discovery indicates that cells of adult tissues continue throughout life producing substances which are able to promote the appearance of cells of the same type during development. Probably they also serve to mediate interrelations between cells of these tissues, regulating the stability of their differentiation in the adult state, as well.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Xenopus laevis
/
Embrião não Mamífero
/
Indução Embrionária
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Fenômenos Fisiológicos Oculares
Limite:
Animals
Idioma:
En
Revista:
Differentiation
Ano de publicação:
1997
Tipo de documento:
Article
País de afiliação:
Federação Russa