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.
- Order Number
- Package Size
- 100 µl
The prognosis and clinical course of CLL are heterogeneous. Conventional banding techniques in CLL are hampered by the low mitotic index of the neoplastic cells. The introduction of interphase cytogenetics using fluorescent in situ hybridization (FISH) has greatly increased the sensitivity of cytogenetic analyses. With FISH abnormalities can be detected in more than 80 % of patients by using a 4-probe panel for the detection of trisomy 12q13-15 and deletions 13q14, 17p13, and 11q22-23. An additional 10 % of patients can be shown to carry a 6q21 deletion, 14q32 translocation, and partial trisomy 3q or 8q.
TP53 is a tumor suppressor gene that stops cell division when DNA damage is present. Loss of TP53 at 17p13 is a powerful predictor of resistance to therapy with purine analogues and alkylating agents, and of poor prognosis in CLL.
The TP53 tumor suppressor gene is one of the most frequently mutated genes in human cancer with mutations and deletions identified in a wide range of solid tumors and hematological disorders.
- Multiple Myeloma and Plasma Cell Neoplasms (MM)
- Chronic Lymphocytic Leukemia (CLL)
- Chronic Myelogenous Leukemia (CML)
Two green (2G) and two orange (2O) signals.
Aberrant Cell (typical results):
Two green (2G) and one orange (1O) signal resulting from loss of one orange locus.
- Doehner et al (1995) Blood 85:1580-1589
- Drach et al (1998) Blood 92:802-809
- Doehner et al (2000) N Engl J Med 343:1910-1916