Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1999-5-17
pubmed:databankReference
pubmed:abstractText
The mechanisms responsible for the development of the taxol resistance phenotype are unclear, and are likely explained by multiple mechanisms. To understand the molecular changes associated with drug resistance more fully, a taxol-resistant subline, derived from the human ovarian cancer cell line SKOV-3, was established through selection by culture in incrementally increasing taxol concentrations. Comparison of SKOV-3 to SKOV-3TR by differential display identifies a new gene, TRAG-3 (Taxol Resistance Associated Gene- 3). In comparison to the parental line, SKOV-3, TRAG-3 mRNA is overexpressed in the taxol-resistant cell line SKOV-3TR. The nucleotide sequence of the TRAG-3 cDNA contains an open reading frame of 333bp that predicts for a protein product of 110 amino acids. A GenBank search identifies a cosmid clone containing a genomic sequence corresponding to that of TRAG-3. DNA and protein analysis reveals that TRAG-3 has no homology to any known cDNAs or proteins. Northern analysis demonstrates that TRAG-3 is overexpressed in the taxol-resistant breast cancer cell line MDA 435TR as well as the doxorubicin-resistant multiple myeloma cell lines 8226/DOX40 and 8226/MDR10V. A survey of normal tissue shows minimal or absent TRAG-3 mRNA expression. Screening of a wide variety of cancer cell lines demonstrates TRAG-3 expression in many cell lines derived from different tissue types. In summary, TRAG-3 is a novel gene whose expression is associated with the chemotherapy-resistant and neoplastic phenotype.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0378-1119
pubmed:author
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
229
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
75-81
pubmed:dateRevised
2010-9-20
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
TRAG-3, a novel gene, isolated from a taxol-resistant ovarian carcinoma cell line.
pubmed:affiliation
Masssachusetts General Hospital, Cox 640, Department of Hematology/Oncology, 100 Blossom Street, Boston, MA 02114, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't