IGH/CCND1 Translocation, Dual Fusion
- CCND1 (BCL1), 11q13.3, Red
- IGH, 14q32.33, Green
The IGH/CCND1 product consists of probes, labelled in green, covering the Constant, J, D and Variable segments of the IGH gene, and CCND1 probes labelled in red. The CCND1 probe mix contains a 267kb probe centromeric to CCND1 gene, covering the region between the D11S1100 and the D11S4095 markers, and a second 223kb probe covering the telomeric end of CCND1 gene.
Although translocations involving IGH and CCND1 (BCL1) were initially reported in B-CLL patients, the rearrangement is now considered to be a hallmark of mantle cell lymphoma (MCL).
Reciprocal translocations involving the IGH and CCND1 (previously known as BCL1) loci, t(11;14)(q13;q32), were frequently reported in B-CLL patients1. The involvement of the CCND1 (Cyclin D1) gene was initially reported from a cloning study looking at the breakpoints of the translocation. However, it is likely that the initial diagnosis on the samples used for the study should have been MCL. The IGH/CCND1 probe for detection of t(11;14) has been recommended by the British Committee for Standards in Haematology to enable atypical B-CLL patients to be distinguished from possible MCL patients2.
In our hands, Cytocell FISH probes, have proven to be of the highest quality with bright, easy to interpret signals, thus providing confidence in our results. Cytocell’s customer support is outstanding, as their staff are extremely knowledgeable and truly care about their customers and their customers’ needs. Jennie Thurston, Director of Cytogenetics at Carolinas Pathology Group
1. Brizard et al., Leuk Lymphoma 1997;25(5-6):539-43
2. Parker et al., Best Practice in Lymphoma Diagnosis and Reporting; Specific disease appendix 2010, p5
- Area of Interest*
This product is intended to be used on Carnoy’s solution (3:1 methanol/acetic acid) fixed haematological samples, or formalin-fixed paraffin-embedded (FFPE) tissues.
*Disease information supported by the literature and is not a reflection of the intended purpose of this product.