0000000000264151

AUTHOR

Esperanza Vizcarra

showing 6 related works from this author

Loss of a novel tumor suppressor gene locus at chromosome 8p is associated with leukemic mantle cell lymphoma

2001

Abstract Patients with mantle cell lymphoma (MCL) may present with either nodal or leukemic disease. The molecular determinants underlying this different biologic behavior are not known. This study compared the pattern of genetic abnormalities in patients with nodal and leukemic phases of MCL using comparative genomic hybridization (CGH) and fluorescence in situ hybridization (FISH) for specific gene loci. Although both leukemic and nodal MCL showed similar genomic patterns of losses (involving 6q, 11q22-q23, 13q14, and 17p13) and gains (affecting 3q and 8q), genomic loss of chromosome 8p occurred more frequently in patients with leukemic disease (79% versus 11%,P < .001). Subsequent…

medicine.medical_specialtyTumor suppressor geneImmunologyGenes mycLocus (genetics)Lymphoma Mantle-CellBiologyBiochemistryMYC Gene AmplificationGene duplicationmedicineHumansGenes Tumor SuppressorIn Situ Hybridizationmedicine.diagnostic_testGene AmplificationCytogeneticsNucleic Acid HybridizationCell BiologyHematologyPrognosismedicine.diseaseCancer researchMantle cell lymphomaGene DeletionChromosomes Human Pair 8Fluorescence in situ hybridizationComparative genomic hybridizationBlood
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Cytogenetic response induced by interferon alpha in the myeloproliferative disorder with eosinophilia, T cell lymphoma and the chromosomal translocat…

1998

Cytogenetic response induced by interferon alpha in the myeloproliferative disorder with eosinophilia, T cell lymphoma and the chromosomal translocation t(8;13)(p11;q12)

Geneticscongenital hereditary and neonatal diseases and abnormalitiesCancer ResearchAlpha interferonChromosomal translocationHematologyBiologymedicine.diseaseCytogenetic ResponseLymphomaOncologyhemic and lymphatic diseasesCancer researchmedicineEosinophiliaT-cell lymphomamedicine.symptomLeukemia
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Chromosomal abnormalities in women with breast cancer after autologous stem cell transplantation are infrequent and may not predict development of th…

2000

We determined prospectively the incidence of chromosomal abnormalities in patients with high-risk breast cancer (HRBC) after high-dose chemotherapy (HDCT) and autologous stem cell transplantation (ASCT), and correlated the cytogenetic abnormalities with the development of post-transplant myelodysplastic syndrome or acute myeloid leukemia (MDS/AML). From 1990 to 1999, 229 women with HRBC underwent ASCT. Cytogenetic analysis of bone marrow (BM) cells was performed 12–59 months after ASCT in 60 consecutive women uniformly treated with six courses of FAC/FEC followed by HDCT and ASCT. With a median follow-up of 36 months after ASCT, there were no cases of MDS/AML among the 229 patients. In the …

OncologyAdultmedicine.medical_specialtyPathologyPopulationAneuploidyBreast NeoplasmsTransplantation AutologousBreast cancerAutologous stem-cell transplantationBone MarrowPredictive Value of Testshemic and lymphatic diseasesInternal medicineAntineoplastic Combined Chemotherapy ProtocolsAdjuvant therapyMedicineHumanseducationCyclophosphamideEpirubicinNeoplasm StagingChromosome AberrationsTransplantationeducation.field_of_studyLeukemiabusiness.industryHematopoietic Stem Cell TransplantationMyeloid leukemiaNeoplasms Second PrimaryHematologyMiddle Agedmedicine.diseaseCombined Modality TherapyTransplantationPostmenopausemedicine.anatomical_structurePremenopauseChemotherapy AdjuvantDoxorubicinMyelodysplastic SyndromesFemaleBone marrowFluorouracilbusinessBone marrow transplantation
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Genomic Abnormalities Acquired in the Blastic Transformation of Splenic Marginal Zone B-cell Lymphoma

2003

Among 20 cases of typical splenic marginal zone lymphoma (SMZL), two cases had blastic transformation. The genetic mechanisms underlying the morphologic transformation were investigated by comparing genetic changes in initial and blastic phases. A complex karyotype including trisomy of 3q and genomic gain of 17q22-q24 was seen in both cases at diagnosis. However, the extra copy of 3q was lost during the transformation process in both tumors. Additionally, the Karpas 1718 cell line, which was derived from a patient with transformed SMZL and carried a trisomy of 3q, also evidenced the spontaneous loss of the extra 3q during the culturing process. Other acquired abnormalities observed exclusiv…

Cancer ResearchPathologymedicine.medical_specialtyLymphoma B-CellTrisomyChromosomal translocationBiologyComplex KaryotypeTumor Cells CulturedmedicineChromosomes HumanHumansSplenic marginal zone lymphomaChromosome AberrationsLymphoma Non-HodgkinSplenic NeoplasmsHematologymedicine.diseaseTransformation (genetics)OncologyKaryotypingDisease ProgressionB-Cell Non-Hodgkin LymphomaChromosomes Human Pair 3Chromosome DeletionAbnormalityBlast CrisisTrisomyChromosomes Human Pair 17Comparative genomic hybridizationLeukemia & Lymphoma
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Variant Three-Way Translocation of Inversion 16 in AML-M4Eo Confirmed by Fluorescence In Situ Hybridization Analysis

1999

The inv(16) and t(16;16) characterize a subgroup of acute myelomonocytic leukemia (AML) with distinct morphological features and a favorable prognosis. Both cytogenetic abnormalities result in a fusion of CBF beta at 16q22 and MYH11 gene at 16p13, whose detection by PCR and fluorescence in situ hybridization (FISH) is useful for diagnosis and monitoring of the disease. Variant translocations of inv(16)/t(16;16) are very rare and whether they are also associated with a favorable prognosis is unknown. We report a patient presenting with typical AML-M4Eo and a three-way translocation of inv(16) involving 16p13, 16q22, and 3q22. FISH studies on bone marrow (BM) chromosomes using CBFB and MYH11 …

AdultMaleCancer ResearchChromosomal translocationBiologyLeukemia Myelomonocytic AcuteTranslocation GeneticChromosome 16GeneticsmedicineHumansMolecular BiologyIn Situ Hybridization FluorescenceChromosomal inversionmedicine.diagnostic_testReverse Transcriptase Polymerase Chain ReactionHybridization probemedicine.diseaseMolecular biologyEosinophilsLeukemiaFusion transcriptChromosome InversionAcute myelomonocytic leukemiaFemaleChromosomes Human Pair 16Fluorescence in situ hybridizationCancer Genetics and Cytogenetics
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Splenic Marginal Zone Lymphoma Shows a Distinct Pattern of DNA Copy Number Aberrations That Correlates with Tumor Characteristics and Predicts Diseas…

2006

Abstract Splenic marginal zone lymphoma (SMZL) is an indolent B cell malignancy whose diagnosis is based on lymphocyte morphology, immunophenotype and marrow and/or splenic histology. Unlike other lymphomas, there is not a common chromosomal translocation specific for SMZL, and genetic prognostic factors are poorly defined. To investigate the pattern of genomic aberrations in SMZL, we applied comparative genomic hybridization to BAC microarrays (array CGH) to a well characterized series of 75 SMZL specimens. We applied two different 1 Mb-resolution BAC arrays: UCSF HumArray 3.2 and a novel array CGH platform developed at Univ. of Salamanca. These arrays allowed us to detect DNA copy number …

Tissue microarrayImmunologyFollicular lymphomaCell BiologyHematologyBiologymedicine.diseaseBiochemistryMolecular biologyLymphomaImmunophenotypingComplex KaryotypemedicineMantle cell lymphomaSplenic marginal zone lymphomaComparative genomic hybridizationBlood
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