The Apoptosis Inhibitor Gene API2 and a Novel 18q Gene,MLT, Are Recurrently Rearranged in the t(11;18)(q21;q21) Associated With Mucosa-Associated Lymphoid Tissue Lymphomas

CARMA1, BCL-10 and MALT1 are signalling proteins that have a key role in antigen-receptor-mediated lymphocyte activation through the nuclear factor-κB pathway. Recent genetic studies have revealed additional, previously unexpected roles for these proteins in the development of B and T cells, and in the CD40- and lipopolysaccharide-dependent activation of B cells. Here, I discuss recent advances in the understanding of the molecular and biological functions of these proteins.

CARMA1, BCL-10 and MALT1 in lymphocyte development and activation.

Lymphomas in Patients With Sjögren's Syndrome Are Marginal Zone B-Cell Neoplasms, Arise in Diverse Extranodal and Nodal Sites, and Are Not Associated With Viruses

PURPOSE: Primary cutaneous T-cell lymphomas (CTCLs) encompass a wide variety of lymphomas that are characterized by the localization of the malignant lymphocytes to the skin at presentation. Advances in molecular biologic techniques, including immunophenotyping and gene rearrangement studies to determine clonality, have led to more frequent diagnosis of CTCL as well as more consistent subclassification of these entities. However, there continues to be confusion in the classification, prognosis, and management of patients with CTCL. The purpose of this review is to present a summary of the diagnosis, prognosis, and treatment of CTCL, with specific emphasis on mycosis fungoides (MF) and Sezary syndrome (SS). We also present a detailed discussion of the entities that make up the differential diagnosis of CTCL. DESIGN: We reviewed the medical literature on CTCL and other diseases that make up the differential diagnosis of CTCL. Results and CONCLUSION: MF and SS are the most common forms of CTCL. The etiology ...

C. Dewolfpeeters

Papers

Marginal zone B-cell lymphomas of different sites share similar cytogenetic and morphologic features