Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2007-8-16
pubmed:abstractText
The genomic profile of mantle cell lymphoma (MCL) has been reported to be significantly different from that of other indolent lymphoproliferative disorders, Topoisomerase IIalpha, glutathione-s-transferasepi (GSTpi) and ABCG2 (BCRP) chemoresistance genes being over-expressed in MCL. In our study, expression levels of the above mentioned genes plus MDR1 were tested on bone marrow samples from 20 patients treated with Rituximab plus hyper-CVAD regimen, in order to evaluate a possible impact of the chemoresistance phenomenon on this promising treatment regimen. All patients expressed ABCG2 and MDR1 genes; 85% of cases expressed GSTpi and topoisomerase IIalpha. Only ABCG2 were over-expressed in comparison both with marrow from healthy donors and tonsilar CD5+/CD20+ lymphocytes (adopted as normal counterpart of the neoplastic population). The overall response rate of the entire series was 87.5%, with 44% of complete responses. Fifty-seven percent of patients achieved the clearance of minimal residual disease. Levels of tested genes did not condition either quality of clinical response or PFS (76% at 24 months). Nevertheless, an ABCG2 higher expression appeared associated with a worse PFS and levels of this gene paralleled the status of minimal residual disease. A further evaluation of ABCG2 expression in larger series of MCL patients would be suitable.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/ABCB1 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/ABCG2 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/ATP-Binding Cassette Transporters, http://linkedlifedata.com/resource/pubmed/chemical/Antibodies, Monoclonal, http://linkedlifedata.com/resource/pubmed/chemical/Antibodies, Monoclonal..., http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Neoplasm, http://linkedlifedata.com/resource/pubmed/chemical/Cyclophosphamide, http://linkedlifedata.com/resource/pubmed/chemical/DNA Topoisomerases, Type II, http://linkedlifedata.com/resource/pubmed/chemical/DNA topoisomerase II alpha, http://linkedlifedata.com/resource/pubmed/chemical/DNA-Binding Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Dexamethasone, http://linkedlifedata.com/resource/pubmed/chemical/Doxorubicin, http://linkedlifedata.com/resource/pubmed/chemical/GSTP1 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/Glutathione S-Transferase pi, http://linkedlifedata.com/resource/pubmed/chemical/Neoplasm Proteins, http://linkedlifedata.com/resource/pubmed/chemical/P-Glycoprotein, http://linkedlifedata.com/resource/pubmed/chemical/Tumor Markers, Biological, http://linkedlifedata.com/resource/pubmed/chemical/Vincristine, http://linkedlifedata.com/resource/pubmed/chemical/rituximab
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1042-8194
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1502-9
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:17701580-ATP-Binding Cassette Transporters, pubmed-meshheading:17701580-Adult, pubmed-meshheading:17701580-Aged, pubmed-meshheading:17701580-Antibodies, Monoclonal, pubmed-meshheading:17701580-Antibodies, Monoclonal, Murine-Derived, pubmed-meshheading:17701580-Antigens, Neoplasm, pubmed-meshheading:17701580-Antineoplastic Combined Chemotherapy Protocols, pubmed-meshheading:17701580-Case-Control Studies, pubmed-meshheading:17701580-Cyclophosphamide, pubmed-meshheading:17701580-DNA Topoisomerases, Type II, pubmed-meshheading:17701580-DNA-Binding Proteins, pubmed-meshheading:17701580-Dexamethasone, pubmed-meshheading:17701580-Doxorubicin, pubmed-meshheading:17701580-Drug Resistance, Multiple, pubmed-meshheading:17701580-Drug Resistance, Neoplasm, pubmed-meshheading:17701580-Female, pubmed-meshheading:17701580-Gene Expression Regulation, Neoplastic, pubmed-meshheading:17701580-Glutathione S-Transferase pi, pubmed-meshheading:17701580-Humans, pubmed-meshheading:17701580-Lymphoma, Mantle-Cell, pubmed-meshheading:17701580-Male, pubmed-meshheading:17701580-Middle Aged, pubmed-meshheading:17701580-Neoplasm Proteins, pubmed-meshheading:17701580-P-Glycoprotein, pubmed-meshheading:17701580-Prognosis, pubmed-meshheading:17701580-Survival Rate, pubmed-meshheading:17701580-Treatment Outcome, pubmed-meshheading:17701580-Tumor Markers, Biological, pubmed-meshheading:17701580-Vincristine
pubmed:year
2007
pubmed:articleTitle
Evaluation of the MDR1, ABCG2, Topoisomerases IIalpha and GSTpi gene expression in patients affected by aggressive mantle cell lymphoma treated by the R-Hyper-CVAD regimen.
pubmed:affiliation
Department of Oncology, Transplants and Advances in Medicine, Hematology Section, University of Pisa, Italy. s.galimberti@med.unipi.it
pubmed:publicationType
Journal Article, Comparative Study, Clinical Trial, Phase II