Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2003-4-24
pubmed:databankReference
pubmed:abstractText
Retinoids mediate a wide spectrum of antitumor activities through induction of growth arrest, differentiation or apoptosis. To determine whether the effects of retinoids are mediated by specific gene activation or repression, one-day treatments of SC-M1 CL23 gastric cancer cells with vehicle alone or all-TRANS retinoic acid (tRA) (10 microM) were compared using differential display analysis. A 432-bp cDNA fragment from the tRA-treated cells was differentially amplified and its sequence analysis indicated homology with the calcium-binding protein S100P. Levels of S100P mRNA were increased 3.5-fold in SC-M1 CL23 gastric cancer cells treated with 10 microM tRA for 1 day, and the regulation was time- and concentration-dependent. Treatment with tRA (10 microM) also increased S100P mRNA levels in tRA-sensitive HtTA cells but not in inherent RA-resistant TMC-1 cells. However, the tRA-mediated increase in S100P expression was maintained in SC-M1/R cells that were established long-term in tRA-containing medium and had acquired partial RA resistance to tRA-induced growth suppression. In conclusion, tRA increases S100P expression, and the regulation remains intact in cells which develop acquired RA resistance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1021-7770
pubmed:author
pubmed:copyrightInfo
Copyright 2003 National Science Council, ROC and S. Karger AG, Basel
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
313-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Retinoic acid increases expression of the calcium-binding protein S100P in human gastric cancer cells.
pubmed:affiliation
Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, No. 161 Min-Chuan E. Road, Sec. 6, Taipei, Taiwan 114, ROC.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't