Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1996-5-29
pubmed:abstractText
Developmental expression of marker genes representative of different mature cell types can be used to study differentiation of cell lineages. We used immunohistochemistry to study expression in developing mouse lung of calcitonin gene-related peptide (CGRP), Clara cell 10-KD protein (CC10), and surfactant protein-A (SP-A), markers that are differentially expressed in neuroendocrine cells, Clara cells, and Type II alveolar cells. Two distinct developmental phases were revealed. The earlier phase (embryonic days 13-15; E13-E15) was characterized by CGRP, CC10, and SP-A immunostaining in all epithelial cells of the distal airways, with the three patterns being virtually identical in adjacent sections. The later phase (E16-E18) was characterized by emergence of staining of the differentiated cell types. These expression patterns were recapitulated in serumless organ culture, demonstrating that information necessary to generate both phases of gene expression is present within the lung analage by E11. We conclude that CGRP, CC10, and SP-A are co-expressed in most or all cells of the distal lung epithelium at E13-E15 and later become restricted to different cell lineages. This transient expression in progenitor cells of gene products characteristic of diverse differentiated cell types may reflect an underlying mechanism of gene regulation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-1554
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
113-23
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:8609367-Animals, pubmed-meshheading:8609367-Biological Markers, pubmed-meshheading:8609367-Calcitonin Gene-Related Peptide, pubmed-meshheading:8609367-Epithelial Cells, pubmed-meshheading:8609367-Female, pubmed-meshheading:8609367-Immunoenzyme Techniques, pubmed-meshheading:8609367-Lung, pubmed-meshheading:8609367-Mice, pubmed-meshheading:8609367-Organ Culture Techniques, pubmed-meshheading:8609367-Pregnancy, pubmed-meshheading:8609367-Protein Biosynthesis, pubmed-meshheading:8609367-Proteins, pubmed-meshheading:8609367-Proteolipids, pubmed-meshheading:8609367-Pulmonary Surfactant-Associated Protein A, pubmed-meshheading:8609367-Pulmonary Surfactant-Associated Proteins, pubmed-meshheading:8609367-Pulmonary Surfactants, pubmed-meshheading:8609367-Stem Cells, pubmed-meshheading:8609367-Uteroglobin
pubmed:year
1996
pubmed:articleTitle
Embryonic mouse lung epithelial progenitor cells co-express immunohistochemical markers of diverse mature cell lineages.
pubmed:affiliation
Center for Craniofacial Molecular Biology, University of Southern California School of Dentistry, Los Angeles, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't