Fluorescence in situ hybridization has become an essential detection assay in today´s routine diagnostics. However, long hybridization times of many hours to overnight are still a restrictive factor. We have refined the production process of our FISH probes to reduce background and artefacts and to improve the signal to noise ratio, particularly in short-time hybridization. Since mid-2015, one hour hybridization on lymphocytes is an integral part of quality control for all XCyting locus-specific probes at our manufacturing facility.
XL MALT1 BA
Break Apart Probe
- Order Number
- Package Size
- 100 µl
The MALT1 gene was identified through its involvement in t(11;18)(q21;q21), seen in 30% of cases of mucosa-associated lymphoid tissue (MALT) lymphoma. The t(11;18)(q21;q21) is restricted to MALT lymphomas and has not been detected in nodal or splenic marginal zone lymphomas, diffuse large B-cell lymphomas, or other non-Hodgkin lymphomas. The second most frequent translocation identified in MALT lymphoma is the t(14;18)(q32;q21) IGH/MALT1. The t(14;18)(q32;q21) IGH/MALT1 is found most often in MALT lymphomas arising at non-gastric sites, and is identified in 5-25% of cases arising in the ocular adnexa, lung, salivary gland and skin.
The oncogenic activity of MALT1 is linked to it's involvement of the CARMA1-BCL10-MALT1 (CBM) complex in antigen receptor-mediated activation of the transcription factor NF-kB, which controls the expression of numerous anti-apoptotic and proliferation-promoting genes.
- Non-Hodgkin Lymphomas (NHL)
- Solid Tumors (Solid Tumors)
Two green-orange (2GO) fusion signals.
Aberrant Cell (typical results):
One green (1G), one orange (1O), and one green-orange (1GO) fusion signal, indicating a chromosome break in the MALT1 locus.
- Streubel et al (2003) Blood 101: 2335-2339
- Murga Penas et al (2003) Leukemia 17: 2225-2229
- Bacon et al (2007) J Clin Pathol 60: 361-372