Linked Life Data

7664314

Source:http://linkedlifedata.com/resource/pubmed/id/7664314

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1995-10-10
pubmed:abstractText
Cell cycle-dependence of parathyroid hormone (PTH)-induced signal transduction was studied at the single cell level in fetal rat osteoblast-like cells (ROB) in primary culture. Responsiveness to 10(-7) M rPTH1-34 was measured as changes in the intracellular calcium concentration ([Ca2+]i) of cells loaded with Fura-2 using a video imaging setup. Cells in S-phase were identified by staining for incorporated 5-bromo-2'-deoxyuridine (BrdU). ROB were cultured on glass coverslips which had alphanumerically marked gratings so that cells could be located. Directly after measurement of the PTH-induced [Ca2+]i response of the individual cells, cells were fixed and stained for incorporated BrdU. Phase-contrast images taken with the video imaging setup were compared with phase-contrast micrographs and fluoro-micrographs taken after staining for BrdU incorporation. We found that 43% of the cells responding to PTH with a rise in [Ca2+]i had also incorporated BrdU. This percentage was not different from the percentage BrdU positive cells in the whole culture, showing that calcium responsiveness was randomly distributed between ROB in S-phase and those not in S-phase. We therefore conclude that PTH does not induce calcium responses preferentially during the S-phase of the cell cycle in ROB in primary culture.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0143-4160
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
270-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
S-phase independence of parathyroid hormone-induced calcium signalling in primary osteoblast-like cells.
pubmed:affiliation
Department of Physiology and Physiological Physics, Leiden University, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't