Open AccessEndothelin 3 selectively promotes survival and proliferation of neural crest-derived glial and melanocytic precursorsin vitro
Author(s) -
Ronit Lahav,
Élisabeth Dupin,
Laure Lecoin,
Corinne Glavieux,
Delphine Champeval,
Catherine Ziller,
Nicole M. Le Douarin
Publication year - 1998
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.95.24.14214
Subject(s) - neural crest , endothelin 3 , endothelins , population , biology , microbiology and biotechnology , in vitro , endothelin receptor , genetics , receptor , embryo , demography , sociology
Genetic data in the mouse have shown that endothelin 3 (ET3) and its receptor B (ETRB) are essential for the development of two neural crest (NC) derivatives, the melanocytes and the enteric nervous system. We report here the effects of ET3in vitro on the differentiation of quail trunk NC cells (NCC) in mass and clonal cultures. Treatment with ET3 is highly mitogenic to the undifferentiated NCC population, which leads to expansion of the population of cells in the melanocytic, and to a lesser extent, the glial lineages. The effect of ET3 on these two NC derivatives was confirmed by the quantitative analysis of clones derived from individual NCC subjected to ET3: we found a large increase in the survival and proliferation of unipotent and bipotent precursors for glial cells and melanocytes, with no significant effect on multipotent cells generating neurons. ET3 first stimulates expression of both ETRB and ETRB2 by cultured NCC. Then, under prolonged exposure to ET3, ETRB expression decreases and switches toward an ETRB2-positive melanogenic cell population. We therefore propose that the presentin vitro experiments (long-lasting exposure to a high concentration of ET3) mimic the environment encountered by NCCin vivo when they migrate to the skin under the ectoderm that expresses ET3.