Immunoglobulin VH gene analysis in gastric MALT lymphomas
نویسندگان
چکیده
منابع مشابه
Immunoglobulin VH gene expression among extranodal marginal zone B-cell lymphomas of the ocular adnexa.
PURPOSE Most lymphomas of the ocular adnexa are primary extranodal non-Hodgkin's lymphomas of the B-cell type, with the most common lymphoma subtype being the extranodal marginal-zone B-cell lymphoma (EMZL). Analysis of somatic mutations in the variable (V) region of the Ig heavy (H)-chain gene segment suggests that EMZL development in other locations is dependent on antigen stimulation. The pu...
متن کاملSAIVGeM: spreadsheet analysis of immunoglobulin VH gene mutations.
The analysis of mutations in immunoglobulin heavy chain variable (IGHV) region genes is a tedious process when performed by hand on multiple sequences. This report describes a set of linked Microsoft Excel files that perform several common analyses on large numbers of IGHV sequences. The spreadsheet analysis of immunoglobulin VH gene mutations (SAIVGeM) package determines the distribution of mu...
متن کاملAbsence of NOTCH1 gene mutations in MALT lymphomas.
The NOTCH family of genes encodes a set of four transmembrane receptors that function in cell fate decisions during the development of many cell types, including B-cells, and recent studies have indicated an important oncogenic role for NOTCH activation in various B-cell malignancies (Mirandola et al, 2011). In particular, NOTCH signalling is known to be important for the generation of marginal...
متن کاملNon-MALT marginal zone lymphomas.
The concept of marginal zone B-cell lymphomas was developed in the 1990s for lymphomas whose cells originate from B lymphocytes normally present in a distinct anatomical location, the so-called ‘marginal zone’ (MZ). MZ has been described in the lymphoid organs—spleen and lymph nodes—and in nonlymphoid organs—mucosa-associated lymphoid tissue (MALT) or non-mucosal tissue such as skin, orbit and ...
متن کاملAddendum: Immunoglobulin Gene Repertoire Diversification and Selection in the Stomach – From Gastritis to Gastric Lymphomas
Chronic gastritis is characterized by gastric mucosal inflammation due to autoimmune responses or infection, frequently with Helicobacter pylori. Gastritis with H. pylori background can cause gastric mucosa-associated lymphoid tissue lymphoma (MALT-L), which sometimes further transforms into diffuse large B-cell lymphoma (DLBCL). However, gastric DLBCL can also be initiated de novo. The mechani...
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ژورنال
عنوان ژورنال: Modern Pathology
سال: 2007
ISSN: 0893-3952,1530-0285
DOI: 10.1038/modpathol.3800758