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Cyclin D1 was originally cloned as a breakpoint rearrangement in parathyroid adenoma [5] and was shown to be required for progression through the G1 phase of the cell cycle to induce cell migration, [14] angiogenesis [15] and to induce the Warburg effect. [16] Cyclin D1 is a protein required for progression through the G1 phase of the cell ...
Upregulation of AIF-1 enhanced activity of NF-ΚB and increased expression of cyclin D1. Cyclin D1 contribute to cell proliferation and mutation in this gene has been connected with variety of tumors. It has also been shown that AIF-1 expression can contribute to progression of cancer by inhibition of apoptosis in cells. [21] [22]
The cyclin D1-expressing lymphocytes generally populate the inner layers of the marginal zone but on occasion some of these cells may be identified in the germinal centers surrounded by these marginal zones as well as in the bone marrow. The cells do not disrupt the overall architecture of the involved follicles.
Mantle cell lymphoma (MCL) is a type of non-Hodgkin's lymphoma, comprising about 6% of cases. [1] [2] It is named for the mantle zone of the lymph nodes where it develops.[3] [4] The term 'mantle cell lymphoma' was first adopted by Raffeld and Jaffe in 1991.
Positive histologic stains that aid in the diagnosis of conditions of or affecting the human integumentary system Stain Cell, material, and/or structure(s) stained
Cyclin D is a member of the cyclin protein family that is involved in regulating cell cycle progression. The synthesis of cyclin D is initiated during G1 and drives the G1/S phase transition. Cyclin D protein is anywhere from 155 (in zebra mussel) to 477 (in Drosophila) amino acids in length. [2]
t(11;14) is a chromosomal translocation which essentially always involves the immunoglobulin heavy locus, also known as IGH in the q32 region of chromosome 14, as well as cyclin D1 which is located in the q13 of chromosome 11 . [2] Specifically, the translocation is at t(11;14)(q13;q32). [3] [4]
Mantle cell lymphoma: The monoclonal B-cells in this aggressive lymphoma are CD5+ in most cases, CD10−, CD23−, CD43+, CD103−, complete Ig+, and express cyclin D1; these cells have translocations between chromosomes 11 and 14 in >95% of cases and in many cases overexpress the SOX11 transcription factor gene. [2]