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Cited by 299

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

Melanocyte development in vivo and in neural crest cell cultures: crucial dependence on the Mitf basic-helix-loop-helix-zipper transcription factor

Opdecamp, Karin, Nakayama, Atsuo, Nguyen, Minh-Thanh T., Hodgkinson, Colin A., Pavan, William J., Arnheiter, Heinz·1997·Development

Abstract

The more than 20 different Mitf mutations in the mouse are all associated with deficiencies in neural crest-derived melanocytes that range from minor functional distur-bances with some alleles to complete absence of mature melanocytes with others. In the trunk region of wild-type embryos, Mitf-expressing cells that coexpressed the melanoblast marker Dct and the tyrosine kinase receptor Kit were found in the dorsolateral neural crest migration pathway. In contrast, in embryos homozygous for an Mitf allele encoding a non-functional Mitf protein, Mitf-express-ing cells were extremely rare, no Dct expression was ever found, and the number of Kit-expressing cells was much reduced. Wild-type neural crest cell cultures rapidly gave rise to cells that expressed Mitf and coexpressed Kit and Dct. With time in culture, Kit expression was increased, and pigmented, dendritic cells developed. Addition of the Kit ligand Mgf or endothelin 3 or a combination of these factors all rapidly increased the number of Dct-positive cells. Cultures from Mitf mutant embryos initially displayed Mitf-positive cells similar in numbers and Kit-expression as did wild-type cultures. However, Kit expression did not increase with time in culture and the mutant cells never responded to Mgf or endothelin 3, did not express Dct, and never showed pigment. In fact, even Mitf expression was rapidly lost. The results suggest that Mitf first plays a role in promoting the transition of precursor cells to melanoblasts and subsequently, by influ-encing Kit expression, melanoblast survival.

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Metadata

Authors
Opdecamp, K., Nakayama, A., Nguyen, M.-T. T., Hodgkinson, C. A., Pavan, W. J., & Arnheiter, H.
Venue
Development
Published
1997-06-15
Volume
124
Issue
12
Pages
2377-2386
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2130987003
Cited by
299
References
38
FWCI
5.68
Type
journal article
Language
en
Open access
closed

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