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Immunohistochemical Analysis of HLDA9 Workshop Antibodies Against Cell-Surface Molecules in Reactive and Neoplastic Lymphoid Tissues

Immunohistochemical Analysis of HLDA9 Workshop Antibodies Against Cell-Surface Molecules in Reactive and Neoplastic Lymphoid Tissues

Rocio Ramos-Medina, Santiago Montes-Moreno, Lorena Maestre, Marta Cañamero, Maria Rodriguez-Pinilla, Adriana Lázaro, Giovanna Roncador

Immunol Lett. 2011 Jan 30;134(2):150-6.

PMID: 20946916

Abstract:

The study of human leukocyte antigens, predominantly by monoclonal antibody (mAb) techniques, has become a fundamental part of basic research and clinical investigation. In particular, mAbs have allowed a more precise phenotypic dissection of lymphocyte subsets and have increased our understanding of the mechanisms that regulate humoral immunity and tumour transformation. In the present study we have investigated the expression, in both reactive and neoplastic lymphoid tissues, of a panel of HLDA9 mAbs (TRAIL-R2 (CD262), CCR6 (CD196), HVEM (CD270), Galectin-3 and BAFF-R (CD268)) capable of recognizing their target molecules in paraffin-embedded tissue sections. A series of reactive lymphoid tissues and B and T cell lymphomas (151 cases) were studied, using whole sections and tissue microarrays (T.M.A.). The most interesting results were obtained from the Galectin-3 study. In human lymphomas our data are consistent with the results previously described that showed that Galectin-3 is expressed in anaplastic large cell lymphoma (ALCL). Moreover, we provide additional information of Galetin-3 expression in other lymphoma types. In T cell lymphomas, Galectin-3 was strongly expressed by a significant number of peripheral (PTCL 12/43) and cutaneous T cell lymphomas (CTCL 6/24) while in B cell lymphoma only a small proportion of follicular (FL 2/10) and diffuse large B cell lymphomas (DLBCL 3/10) were positives. Our study encourage further investigations into the potential role that TRAIL-R2, CD196, HVEM, Galectin-3 and BAFF-R proteins may play in lymphocyte development and differentiation, but also constitute an additional tool for the study of lymphoid subpopulations and lymphoproliferative disorders.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR4248419	CD270 human			Price

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