Abstract
Reactivities of the monoclonal antibodies (mAbs) of the 9th Human Leukocyte Differentiation Antigen Workshop, in order to define specific antigenic expression of the primary cutaneous B-cell lymphomas (PC-BCL), were analyzed by immunohistology on human tonsil and on PC-BCL, such as follicular centre B-cell lymphomas (FCL), marginal zone lymphomas (MZL) and diffuse large B-cells lymphomas leg-type (DLBL-LT). We identified some subgroups of mAbs that were exclusively or preferentially positive in one lymphoma cell type: the PC-FCL subgroup of mAbs includes PD1/CD279, GCET-1, hFCRL1/CD307a, FCRL2/CD307b, CXCR5/CD185, B7-DC/CD273, MRC/CD200, CD130, CXCR4/CD184, Siglec-5/14, CD150, on the other hand subgroup of mAbs in PC-MZL includes BTLA/CD272, BLIMP-1, hCD38. No specific subgroup of mAbs was found to label PC-DLBCL. This study may be useful to better define specific antigen profile of different PC-BCL entities leading to a correct diagnosis.
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