Please use this identifier to cite or link to this item: http://hdl.handle.net/10201/19358

Title: Melanization stimulating factors in the integument of the Mugil cephalus and Dicertranchus labrax
Issue Date: 2000
Publisher: Murcia : F. Hernández
ISSN: 0213-3911
Related subjects: CDU::5 - Ciencias puras y naturales::57 - Biología::576 - Biología celular y subcelular. Citología
Keywords: Melanogenesis
Teleosts
Abstract: The pigment pattern expression resides in the chromatoblasts of the embryonic skin. The differentiation of these chromatoblasts is influenced by specific local factors such a melanization inhibiting factor (MIF) and a melanization-stimulating factor (MSF). We reveal the presence of these factors by means of a series of experiments on the skin of the marine species of fish Dicertranchus labrax and Mugil cephalus, each with different pigment pattern, the former having a light skin and the latter a darker one. Media conditioned by exposure to dorsal andtor ventral skin, stimulates the melanization of Xenopus laevis neural crest cells throughout a 3 day assay period. Similarly conditioned culture media tested on B16-F10 murine malignant melanocytes, revealed a considerable influence in enzymatic activities: dopachrome tautomerase (DCT), tyrosine hydroxylase and dopa oxidase. The use of media in a dose response basis suggests that the conditioned media may contain both melanophore stimulating and inhibiting factors. The results obtained may actually reflect the resultant activity of the two factors present.
Primary author: Zuasti, A.
Martinez Liarte, José Hilario
Solano, F.
Ferrer, C.
Published in: Histology and histopathology
URI: http://hdl.handle.net/10201/19358
Document type: info:eu-repo/semantics/article
Number of pages / Extensions: 6
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:Vol.15, nº 4 (2000)



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