Search results for " Follicular"

showing 5 items of 55 documents

Germinal center B cells govern their own fate via antibody feedback

2013

High-affinity antibodies reenter germinal centers (GCs) and limit antigen access, thus causing sustained directional evolution in GCs toward higher-affinity antibody production.

endocrine systemImmunologyB-cell receptorAntibody AffinityPlasma cellBiologyAntibodiesAffinity maturationMice03 medical and health sciences0302 clinical medicinehealth services administrationpolycyclic compoundsmedicineAnimalsImmunology and AllergyCell LineageAntigen-presenting cell030304 developmental biologyB-Lymphocytes0303 health sciencesB cell selectionBrief Definitive ReportGerminal centerGerminal CenterMolecular biology3. Good healthMice Inbred C57BLB-1 cellmedicine.anatomical_structurePolyclonal B cell responsesense organshormones hormone substitutes and hormone antagonistsDendritic Cells Follicular030215 immunologyJournal of Experimental Medicine
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EZH2 mutations are frequent and represent an early event in follicular lymphoma

2013

Gain of function mutations in the H3K27 methyltransferase EZH2 represent a promising therapeutic target in germinal center lymphomas. In this study, we assessed the frequency and distribution of EZH2 mutations in a large cohort of patients with follicular lymphoma (FL) (n = 366) and performed a longitudinal analysis of mutation during the disease progression from FL to transformed FL (tFL) (n = 33). Mutations were detected at 3 recurrent mutation hot spots (Y646, A682, and A692) in 27% of FL cases with variant allele frequencies (VAF) ranging from 2% to 61%. By comparing VAF of EZH2 with other mutation targets (CREBBP, MLL2, TNFRSF14, and MEF2B), we were able to distinguish patients harbori…

endocrine systemTime FactorsMethyltransferasemedicine.medical_treatmentDNA Mutational AnalysisImmunologyFollicular lymphomaKaplan-Meier Estimatemacromolecular substancesBiologymedicine.disease_causeBiochemistryTargeted therapyCohort StudiesGene Frequencyhemic and lymphatic diseasesBiomarkers TumormedicineHumansEnhancer of Zeste Homolog 2 ProteinLymphoma FollicularAllele frequencyMutationLymphoid NeoplasiaMEF2 Transcription FactorsGene Expression ProfilingEZH2Polycomb Repressive Complex 2Germinal centerCell BiologyHematologymedicine.diseaseCREB-Binding ProteinLymphomaMutationDisease ProgressionCancer researchReceptors Tumor Necrosis Factor Member 14Blood
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Differential miRNA expression defines migration and reduced apoptosis in follicular thyroid carcinomas.

2013

The objective of the study was to identify microRNAs (miRs) characteristic for follicular thyroid carcinoma (FTC) and to define their role in tumorigenesis. A miR-microarray study was conducted to identify miRs differentially expressed between FTCs and their surrounding tissues. Selection was further reinforced by a literature review. Four miRs were selected and confirmed by RT-qPCR: miR-146b, -183, -221 were up-regulated, whereas miR-199b down-regulated in FTCs. The influence of these miRs on cell proliferation, cell cycle, apoptosis and migration was studied in HTori and FTC-133 cells. Functional characterization suggests an impact of miR-183 and miR-146b in FTC development. Overexpressio…

medicine.medical_specialtyApoptosisBiologymedicine.disease_causeBiochemistryThyroid carcinomaEndocrinologyCell MovementInternal medicineCell Line TumorFollicular phasemicroRNAAdenocarcinoma FollicularmedicineHumansThyroid NeoplasmsFollicular thyroid cancerMolecular BiologyCell ProliferationCell growthCell cyclemedicine.diseaseGene Expression Regulation NeoplasticMicroRNAsEndocrinologyApoptosisCancer researchCarcinogenesisMolecular and cellular endocrinology
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MERIT Study – “Multicenter Evaluation of Patient- and Lesion-Specific Prognostic Factors for RadioImmunoTherapy with 90yttrium-Labeled Anti-CD20 in F…

2009

Abstract Abstract 4792 Background / Aim Although prognostic factors (PF) for conventional lymphoma therapy are well known and used in clinical practice and medical research, the PF for radioimmunotherapy (RIT) have not been fully defined until now. The aim of this prospective multicenter trial is to identify patient- and lesion-specific PF for a standard RIT using 90Yttrium-labeled anti-CD20-antibodies in relapsed or refractory follicular lymphoma (FL) by means of clinical and image data including FDG-PET and CT. To prove the feasibility of the multicenter web-based data collection and to assess the imaging data we performed an analysis on retrospective data. Material and methods This retro…

medicine.medical_specialtymedicine.medical_treatmentImmunologyStandardized uptake valueBiochemistryLesion03 medical and health sciences0302 clinical medicineMulticenter trialmedicineMedical imagingProspective cohort study030304 developmental biology0303 health sciencesbusiness.industryCell BiologyHematologymedicine.disease3. Good healthLymphomaRadioimmunotherapyRadiologyRefractory Follicular Lymphomamedicine.symptombusiness030215 immunologyBlood
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Preliminary approach towards construction of peptide libraries as potential tools for diagnosis of malignant thyroid tumors

2006

Nowotwory złośliwe tarczycy należą do najczęstszych nowotworów złośliwych układu endokrynnego. Poprawa wyników leczenia wiąże się z postępem wczesnej diagnostyki raka. Celem niniejszych badań jest poszukiwanie wskaźników nowotworowych za pomocą bibliotek peptydowych umieszczonych na podłożu z bibuły. Materiał i metody: Analizie poddano tkanki pobrane od 6 pacjentów: 4 z rakiem brodawkowatym tarczycy, 1 z nowotworem pęcherzykowym oraz 1 pacjenta z rakiem oksyfilnym. Badania wykonywano z wykorzystaniem bibliotek peptydowych lipofilowych, porównując tkankę zdrową i chorą oraz oceniając zmianę zabarwienia w poszczególnych bibliotekach. Wyniki: Wstępne wyniki wskazują, że biblioteki peptydowe mo…

neoplasma follicularethyroid glandgruczolak pęcherzykowypapillary thyroid cancerrak brodawkowatyrak rdzeniastysystem diagnostycznymedullary thyroid cancertarczycadiagnostic toolEndokrynologia Polska (Polish Journal of Endocrinology)
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