Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1989-5-5
pubmed:abstractText
Some neural crest cells give rise to pigment cells in early ontogenesis. We tested here whether tyrosinase--a key enzyme in melanogenesis--was present in some pigment neural crest derivatives in adult hamsters. Interestingly enough, inactive tyrosinase protein was detected, using indirect immunofluorescence, in the satellite cells of spinal ganglia and Schwann cells of sciatic and facial nerves in normal adult animals. The results of cell blotting from spinal ganglia were similar to the fluorescence findings. Thus, our results seem to support the hypothesis that Schwann cells, satellite cells of spinal ganglia, and melanocytes may be more intimately related developmentally than other neural-crest-derived cells. Moreover, since we detected tyrosinase protein in cells which normally do not produce melanosomes, it could be deduced that, during the melanocyte's differentiation from its cell precursor, the expression of tyrosinase protein might precede the point when melanosomes begin to differentiate from known cytoplasmic structures.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0893-5785
pubmed:author
pubmed:issnType
Print
pubmed:volume
1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
340-3
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Tyrosinase protein is expressed also in some neural crest derived cells which are not melanocytes.
pubmed:affiliation
Department of Anatomy, Faculty of General Medicine, Charles University, Czechoslovakia.
pubmed:publicationType
Journal Article