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 FOXO1 BA
Break Apart Probe
- Order Number
- Package Size
- 100 µl
Rhabdomyosarcoma (RMS) is a relatively rare cancer type but it is the most common soft tissue sarcoma in children and adolescents. The histopathological classification includes several subtypes, the embryonal rhabdomyosarcoma (ERMS) and the alveolar rhabdomyosarcoma (ARMS) are the most common variants, in the order of their occurrence. ARMS is associated with a worse outcome and is characterized by the two reciprocal translocations t(2;13)(q35;q14) and t(1;13) (p36;q14), affecting the FOXO1 gene region and PAX3 or PAX7 respectively, in about 80% of cases. The result is an in-frame fusion of the PAX DNA binding domain with the transcriptional active domain of FOXO1 generating a highly potent chimeric activator for PAX target genes. Patients harboring FOXO1-PAX3/7 fusions have an inferior event free survival compared to patients without translocation, suggesting that the molecular status in RMS provides valuable prognostic information.
- Solid Tumors (Solid Tumors)
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 respective locus.
- McManus et al (1996) J Pathol 178:410–414
- Barr (2001) Oncogene 20:5736-5746
- Skapek et al (2013) Pediatr Blood Cancer 60:1411-1417