Genetic control of cell differentiation in platyfish-swordtail melanomas.
J Exp Zool
; 196(2): 197-204, 1976 May.
Article
en En
| MEDLINE
| ID: mdl-818338
In certain fish hybrids, malignant transformation of pigment cells is due to the presence of a tumor gene (Tu), the action of which is controlled by several regulatory elements. Absence of these controlling genes causes rapid proliferation of the Tu-transformed cells and ultimately results in melanoma formation. One of these genes has been identified as a differentiation gene (Diff), since it seems to control the differentiation of the transformed pigment cells. Light and electron microscopy of Tu-transformed cells of fish differing in the dosage of Diff, and the determination of tyrosinase activity in homogenates of the respective tissues revealed that the degree of cellular differentiation depends on the dosage of Diff present in the genome. It is concluded that the gene Diff promotes the differentiation of malignant melanoma cells into benign melanophores.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Transformación Celular Neoplásica
/
Melanoma
Límite:
Animals
Idioma:
En
Revista:
J Exp Zool
Año:
1976
Tipo del documento:
Article
Pais de publicación:
Estados Unidos