**Abstract**

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 adhesion 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.

**Keywords:** DLBCL, lymphomagenesis, GCB, ABC
