Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-12-31
pubmed:abstractText
Rho-GDIalpha is an inhibitor of Rho-GTPases, which is involved in cancer progression. Little is known about its role in breast cancer progression. There is evidence, that Rho-GDIalpha may modulate drug resistance of breast cancer cells. To assess the importance of Rho-GDIalpha as a risk factor in invasive ductal breast cancer, cancer specimens of three groups of patients were analyzed for Rho-GDIalpha RNA (group 1, N=72 and group 2, N=73) or protein expression (group 3, N=90). In group 1, patients did not receive any adjuvant treatment, whereas, in groups 2 and 3, patients were treated with anti-estrogens and/or with chemotherapeutical drugs. Rho-GDIalpha RNA levels, measured by RT-PCR from fresh-frozen material, did not correlate with relapse-free survival in Kaplan-Meier analysis, except in a subgroup of CMF-only treated patients. In this subgroup, higher Rho-GDIalpha RNA levels were significantly associated with more favorable prognosis. Immunohistochemical analysis (group 3) confirmed the link between higher Rho-GDIalpha expression and better outcome. This was again particularly true for the CMF-only treated patients. Cox regression analysis revealed that high Rho-GDIalpha protein expression reduced the risk for a relapse by approximately 3-fold, even if adjusted for grading, tumor size, nodal and estrogen receptor (ER) status. The data suggest that Rho-GDIalpha is beneficial to patients who received adjuvant chemotherapy. Rho-GDIalpha is possibly a useful biomarker to predict the response of breast cancer patients to CMF treatment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1791-2423
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
379-86
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:20043072-Adult, pubmed-meshheading:20043072-Antineoplastic Combined Chemotherapy Protocols, pubmed-meshheading:20043072-Breast Neoplasms, pubmed-meshheading:20043072-Carcinoma, Ductal, Breast, pubmed-meshheading:20043072-Chemotherapy, Adjuvant, pubmed-meshheading:20043072-Cisplatin, pubmed-meshheading:20043072-Drug Resistance, Neoplasm, pubmed-meshheading:20043072-Female, pubmed-meshheading:20043072-Fluorouracil, pubmed-meshheading:20043072-Guanine Nucleotide Dissociation Inhibitors, pubmed-meshheading:20043072-Humans, pubmed-meshheading:20043072-Immunohistochemistry, pubmed-meshheading:20043072-Kaplan-Meier Estimate, pubmed-meshheading:20043072-Methotrexate, pubmed-meshheading:20043072-Middle Aged, pubmed-meshheading:20043072-Neoplasm Staging, pubmed-meshheading:20043072-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:20043072-Risk Factors, pubmed-meshheading:20043072-Treatment Outcome, pubmed-meshheading:20043072-Tumor Markers, Biological
pubmed:year
2010
pubmed:articleTitle
Rho GDP dissociation inhibitor alpha expression correlates with the outcome of CMF treatment in invasive ductal breast cancer.
pubmed:affiliation
Klinik für Gynäkologie, Universität Halle, Halle, Saale, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't