Search results for "B-Cell Chronic Lymphocytic Leukemia"

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Bcl-6 mutation status provides clinically valuable information in early-stage B-cell chronic lymphocytic leukemia

2004

In B-cell chronic lymphocytic leukemia (B-CLL), somatic mutation of IgVH genes defines a subgroup with favorable prognosis, whereas the absence of IgVH mutations is correlated with a worse outcome. Mutations of the BCL-6 gene are also observed in a subset of B-CLL, but the clinical significance of this molecular alteration remains uncertain. We examined the distribution of IgVH and BCL-6 gene mutations in 95 well-characterized patients with Binet stage A B-CLL, and correlated them with clinical, laboratory, cytogenetic findings and disease progression. Mutations of the BCL-6 gene were observed only in cases harboring mutated IgVH. Unexpectedly, coexistence of IgVH and BCL-6 mutations was co…

AdultMaleOncologyCancer Researchmedicine.medical_specialtyChronic lymphocytic leukemiaImmunoglobulin Variable RegionLocus (genetics)BiologyGene mutationDisease-Free SurvivalGermline mutationProto-Oncogene ProteinsInternal medicinemedicineHumansB-cell chronic lymphocytic leukemiaClinical significanceProspective StudiesGeneAgedAged 80 and overHematologyChromosomes Human Pair 11HematologyMiddle AgedPrognosismedicine.diseaseLeukemia Lymphocytic Chronic B-CellDNA-Binding ProteinsOncologyMutationImmunologyProto-Oncogene Proteins c-bcl-6FemaleChromosome DeletionChromosomes Human Pair 17Follow-Up StudiesTranscription FactorsLeukemia
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A comprehensive study of polymorphisms in the ABCB1, ABCC2, ABCG2, NR1I2 genes and lymphoma risk.

2011

Owing to their role in controlling the efflux of toxic compounds, transporters are central players in the process of detoxification and elimination of xenobiotics, which in turn is related to cancer risk. Among these transporters, ATP-binding cassette B1/multidrug resistance 1 (ABCB1/MDR1), ABCC2/multidrug resistance protein 2 (MRP2) and ABCG2/breast cancer resistance protein (BCRP) affect susceptibility to many hematopoietic malignancies. The maintenance of regulated expression of these transporters is governed through the activation of intracellular "xenosensors" like the nuclear receptor 1I2/pregnane X receptor (NR1I2/PXR). SNPs in genes encoding these regulators have also been implicate…

Cytoplasmic And Nuclear ReceptorTechnologyCancer ResearchReceptors SteroidAbcg2Chronic lymphocytic leukemiaGeneBCL9Risk FactorsXenobioticATP Binding Cassette Transporter Subfamily G Member 2Poisonmultidrug resistance protein 2AlleleGeneticseducation.field_of_studyPregnane X receptorB-Cell Chronic Lymphocytic LeukemiabiologyMultidrug resistance-associated protein 2pregnane x receptorMultiple Drug ResistanceMultidrug Resistance-Associated Protein 2Neoplasm Proteinsmultidrug resistance 1Oncologybreast cancer resistance proteinMultidrug Resistance-Associated ProteinsCase-Control StudieBreast NeoplasmMultidrug Resistance-Associated ProteinsB-Cell LymphomaATP Binding Cassette Transporter Subfamily BATP-Binding Cassette TransporterMaintenancePopulationPopulationSingle-nucleotide polymorphismlymphomaPolymorphism Single NucleotideArticlemedicineHumansGenetic Predisposition to DiseaseATP Binding Cassette Transporter Subfamily B Member 1educationRegulator GeneHematologic NeoplasmProteinsmedicine.diseaseHaplotypeslymphoma; multidrug resistance 1; multidrug resistance protein 2; breast cancer resistance protein; pregnane x receptorSingle Nucleotide Polymorphismbiology.proteinNeoplasmATP-Binding Cassette Transporters
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