B Cell Lymphomagenesis

Lymphoid neoplasms are a heterogeneous group of malignancies whose diagnosis depends on a very good analysis of hematopathology and morphology, immunophenotype, cytogenetic, molecular, and clinical characteristics. B-cell lymphomas begin from different developmental stages of B cells in germinal centers of secondary lymphoid tissue. The evolution of B-cell lymphomagenesis depends on different numbers of signal pathways. Proteins that play key point of signaling networks are changed by aberrant chromosomal expression, translocation, and/or accumulation, and those events determine the fate of the affected B cells. Many chemokines and cytokines have been implicated in providing the line for the cellular surviving and interaction in lymphoid organogenesis. Specific chromosomal alterations were associated with significant changes in gene-expression signatures that reflect various aspects of lymphoma cell biology as well as the host response to the lymphoma. The goal of this study was to find out a correlation between tumor markers and survival in patients with subgroups of DLBCL. The goal is to find out chronic autoimmune or pathogen-induced immune reactions resulting in lymphoid neogenesis. So we address (i) chemokines and adhe-sion molecules involved in lymphoid neogenesis, (ii) the autoimmune diseases and pathogens which are associated with the development of B-cell lymphomas, and (iii) the molecular mechanisms involved in the initiation and progression of DLBCL.