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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2003-2-27
pubmed:abstractText
In this study, the distribution of IGF-I, IGF type I receptor (IGF-IR), and IGF-binding protein 2 (IGFBP-2) was investigated during larval and post-larval developmental stages of the shi drum (Umbrina cirrosa) by immunohistochemistry using antisera raised against Sparus aurata IGF-I and IGF-IR, and against mouse IGFBP-2. Immunoreactivity of the mitogenic marker PCNA (proliferating cell nuclear antigen) was used for assessment of cellular proliferation. Distribution of IGF-I mRNA was studied by in situ hybridization. IGF-I immunoreactivity was detected in liver and developing intestine already in 1-5 day post-hatching larvae. From day 11, immunostaining in the intestine was evident in the enterocytes of the anterior intestine and in the apical zone of the epithelium of developing posterior intestine. Positive reaction with IGF-I antibody was also detected in chondrocytes, in the epithelium of the skin, gills and in the central nervous system (CNS), and lateral muscle. At hatching IGF-IR immunoreactivity was already detectable in developing CNS, notochord, and skin. From day 6 immunostaining was evident in the olfactory epithelium, in eyes and from day 11 in the developing olfactory bulbs and CNS. Positive reaction with IGF-IR antibody was also detected in chondrocytes, in the epithelium of the skin, gills, heart, and in the lateral muscle. Immunoreactive IGFBP-2, as detected by anti-mouse IGFBP-2 antiserum, exhibited generally a similar distribution pattern to that of IGF-I and IGF-IR. In situ hybridization, which has been performed by using riboprobes from S. aurata cDNA, revealed IGF-I mRNA in skeletal musculature, liver, and CNS. These data strongly suggest a role for the IGF system during development and growth of U. cirrosa.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0016-6480
pubmed:author
pubmed:copyrightInfo
Copyright 2003 Elsevier Science (USA)
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
130
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
232-44
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Localization of IGF-I, IGF-I receptor, and IGFBP-2 in developing Umbrina cirrosa (Pisces: Osteichthyes).
pubmed:affiliation
Department of Experimental Veterinary Science, Faculty of Veterinary Medicine, University of Padua, Padua, Italy. giuseppe.radaelli@unipd.it
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't