TY - JOUR A1 - Thurner, Lorenz A1 - Hartmann, Sylvia A1 - Neumann, Frank A1 - Hoth, Markus A1 - Stilgenbauer, Stephan A1 - Küppers, Ralf A1 - Preuss, Klaus-Dieter A1 - Bewarder, Moritz T1 - Role of specific B-cell receptor antigens in lymphomagenesis T2 - Frontiers in Oncology N2 - The B-cell receptor (BCR) signaling pathway is a crucial pathway of B cells, both for their survival and for antigen-mediated activation, proliferation and differentiation. Its activation is also critical for the genesis of many lymphoma types. BCR-mediated lymphoma proliferation may be caused by activating BCR-pathway mutations and/or by active or tonic stimulation of the BCR. BCRs of lymphomas have frequently been described as polyreactive. In this review, the role of specific target antigens of the BCRs of lymphomas is highlighted. These antigens have been found to be restricted to specific lymphoma entities. The antigens can be of infectious origin, such as H. pylori in gastric MALT lymphoma or RpoC of M. catarrhalis in nodular lymphocyte predominant Hodgkin lymphoma, or they are autoantigens. Examples of such autoantigens are the BCR itself in chronic lymphocytic leukemia, LRPAP1 in mantle cell lymphoma, hyper-N-glycosylated SAMD14/neurabin-I in primary central nervous system lymphoma, hypo-phosphorylated ARS2 in diffuse large B-cell lymphoma, and hyper-phosphorylated SLP2, sumoylated HSP90 or saposin C in plasma cell dyscrasia. Notably, atypical posttranslational modifications are often responsible for the immunogenicity of many autoantigens. Possible therapeutic approaches evolving from these specific antigens are discussed. KW - B-cell receptor KW - antigen KW - lymphoma KW - autoreactivity KW - posttransnational modification KW - antigens of infectious origin Y1 - 2020 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/57547 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-575472 SN - 2234-943X VL - 10 IS - Article 604685 PB - Frontiers Media CY - Lausanne ER -