Search for dissertations about: "stereotyped B cell receptors"

Showing result 1 - 5 of 8 swedish dissertations containing the words stereotyped B cell receptors.

2. 1. Stereotyped B Cell Receptors in Chronic Lymphocytic Leukaemia : Implications for Antigen Selection in Leukemogenesis

   Author : Fiona Murray; Richard Rosenquist Brandell; Kostas Stamatopoulos; Gunilla Enblad; Gerard Tobin; Manlio Ferrarini; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; chronic lymphocytic leukaemia; immunoglobulin genes; somatic hypermutation; stereotyped B cell receptors; antigen selection; Molecular biology; Molekylärbiologi;

   Abstract : Biased immunoglobulin heavy variable (IGHV) gene usage and distinctive B-cell receptor (BCR) features have been reported in chronic lymphocytic leukaemia (CLL), which may reflect clonal selection by antigens during disease development. Furthermore, the IGHV gene mutation status distinguishes two clinical entities of CLL, where patients with unmutated IGHV genes have an inferior prognosis compared to those with mutated IGHV genes. READ MORE

4. 2. Array-based Characterization of Chronic Lymphocytic Leukemia : - with Focus on Subsets Carrying Stereotyped B-cell Receptors

   Author : Millaray Marincevic; Richard Rosenquist; Andreas Rosenwald; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; chronic lymphocytic leukemia; array-based characterization; stereotyped B-cell receptors; subsets; antigens; SNP array; gene expression array; methylation array; Clinical genetics; Klinisk genetik; Clinical Genetics; Klinisk genetik;

   Abstract : In chronic lymphocytic leukemia (CLL), the presence of multiple subsets expressing ‘stereotyped’ B-cell receptors (BCRs) has implicated antigen(s) in leukemogenesis. These stereotyped subsets display similar immunoglobulin (IG) gene usage, almost identical complementarity determining region 3’s and may share clinical features. READ MORE

5. 3. Genetic and Epigenetic Profiling of Mantle Cell Lymphoma and Chronic Lymphocytic Leukemia

   Author : Anna Margrét Halldórsdóttir; Richard Rosenquist; Reiner Siebert; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mantle cell lymphoma; chronic lymphocytic leukemia; copy number aberration; proliferation signature; TP53; SNP array; methylation array; Haematology; Hematologi; Clinical genetics; Klinisk genetik; Molecular biology; Molekylärbiologi; Tumour biology; Tumörbiologi; Medical Genetics; Medicinsk genetik; Oncology; Onkologi; Molekylär medicin; Molecular Medicine; Pathology; Patologi;

   Abstract : Mantle cell lymphoma (MCL) and chronic lymphocytic leukemia (CLL) both belong to the group of mature B-cell malignancies. However, MCL is typically clinically aggressive while the clinical course of CLL varies. READ MORE

6. 4. Genomic and transcriptomic sequencing in chronic lymphocytic leukemia

   Author : Diego Cortese; Richard Professor; Carlos López Otín; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; chronic; lymphocytic; leukemia; CLL; genomics; transcriptomics; DNA; RNA; mutations; NGS; whole-exome; sequencing; prognostic; markers; TP53; SF3B1; RPS15; relapse; stereotyped; subsets.;

   Abstract : Identification of recurrent mutations through next-generation sequencing (NGS) has given us a deeper understanding of the molecular mechanisms involved in chronic lymphocytic leukemia (CLL) development and progression and provided novel means for risk assessment in this clinically heterogeneous disease. In paper I, we screened a population-based cohort of CLL patients (n=364) for TP53, NOTCH1, SF3B1, BIRC3 and MYD88 mutations using Sanger sequencing, and confirmed the negative prognostic impact of TP53, SF3B1 or NOTCH1 aberrations, though at lower frequencies compared to previous studies. READ MORE

7. 5. Array based genetic profiling of chronic lymphocytic leukemia

   Author : Rebeqa Gunnarsson; Stamcellscentrum (SCC); []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; prognostic markers; copy-number neutral loss of heterozygosity; copy-number aberrations; chronic lymphocytic leukemia; genomic microarrays; clonal evolution; stereotyped B-cell receptors;

   Abstract : Although no common genetic defect has been described in chronic lymphocytic leukemia (CLL), recurrent genomic aberrations (i.e. deletions of chromosome 11q, 13q, 17p and trisomy 12) are important for prognostication. Deletion of 13q as single aberration is associated with the best prognosis, whereas del(11q) and del(17p) predict a poor outcome. READ MORE