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.
Break Apart Probe
- Order Number
- Package Size
- 100 µl
Several recurrent balanced translocations and inversions, and their variants, are recognized in the WHO category acute myeloid leukemia (AML) with recurrent genetic abnormalities. Furthermore, several cytogenetic abnormalities are considered sufficient to establish the WHO diagnosis of AML with myelodysplasia-related features when 20% or more blood or marrow blasts are present.
The RUNX1 gene, located on chromosome 21q22.1, is crucial for the establishment of definite hematopoiesis and the generation of hematopoietic stem cells in the embryo. The most common translocations involving RUNX1 are the t(8;21) RUNX1T1/RUNX1 in AML and t(12;21) ETV6/RUNX1 in ALL, both associated with a more favorable diagnosis. More than 40 different translocation partners have currently been identified making the RUNX1 break apart probe a valuable tool in molecular cytogenetics.
- Acute Myelogenous Leukemia (AML)
- Acute Lymphoblastic Leukemia (ALL)
Two green-orange colocalization/fusion signals (2GO).
Aberrant Cell (typical results):
One green-orange colocalization/fusion signal (1GO), one separate green (1G) and orange (1O) signal each resulting from a chromosome break in the relevant locus.
- Martinez-Ramirez et al (2001) Haematologica 86: 1245-1253
- Zhang et al (2002) PNAS 99: 3070-3075
- Harrison et al (2014) Leukemia 28: 1015-1021