About 100 guests from 36 countries met on the XVIII. MetaSystems Distributor Meeting (DM) in November to exchange experiences and to get to know new trends and developments at MetaSystems.
MetaSystems DM2019 Largest in History
XL DLEU/TP53
Deletion Probe
- Order Number
- D-5067-100-OG
- Package Size
- 100 µl (10 Tests)
- Regulatory Status
- IVDD
IVDR Certification
This probe is IVDR-certified in compliance with the Regulation (EU) 2017/746 on in vitro diagnostic medical devices (IVDR).
MetaSystems Probes has already certified a large part of its portfolio, according to IVDR. For organizational reasons, we currently provide only the IVDD product.
XL DLEU/TP53 consists of an orange-labeled probe hybridizing to the DLEU1/MIR15A/MIR16-1 gene region at 13q14.2 including D13S319 and a green-labeled probe hybridizing to the TP53 gene region at 17p13.
Probe maps are created in accordance with the intended purpose of the product. Solid colored bars do not necessarily indicate that the probe fully covers the indicated genomic region. Therefore, caution is advised when interpreting results generated through off-label use. Probe map details based on UCSC Genome Browser GRCh37/hg19. Map components not to scale. Further information is available on request.
The prognosis and clinical course of chronic lymphocytic leukemia (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 which 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 poor prognosis in CLL. The most frequently deleted region in B-CLL is located in 13q14.3 distal to RB1. The minimal deleted region (MDR) is 350kb in size and includes the gene loci for the mi-RNAs 15 and 16. CLL with 13q deletion as the sole cytogenetic abnormality (del13q-only) usually have a good prognosis.
Clinical Applications
- Chronic Lymphocytic Leukemia (CLL)
- Multiple Myeloma and Plasma Cell Neoplasms (MM)
XL DLEU/TP53 hybridized to bone marrow cells. A cell with normal signal pattern together with cells with a deletion of TP53 (2 orange, 1 green) and cells with deletions of TP53 and DLEU (1 orange, 1 green) are shown.
Normal Cell:
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 signal.
Aberrant Cell (typical results):
One green (1G) and two orange (2O) signal resulting from loss of one green signal.
- Doehner et al (2000) N Engl J Med 343:1910-1916
- Stilgenbauer et al (2002) Leukemia 16:993-1007
- Gunn et al (2008) J Mol Diagn 10:442-451
Package Insert (EN)Package Insert (IT)Performance Data (English)Probes Catalog
Certificate of Analysis (CoA)
or go to CoA DatabaseSecond MetaSystems User Day in Altlussheim, Germany
Neon, the outstanding MetaSystems case and image management system, offers many tools and helpful gadgets to streamline routine workflows, for example in cytogenetics labs. The second MetaSystems User Day, addressed to MetaSystems clients from Germany, Austria, and Switzerland, provided in different workshops knowledge helping to unleash the full power of the system.
OOO MetaSystems Russia on the International Scientific Congress 'Genetics of XXI Century'
The Congress 'Genetics of XXI Century' in Moscow, Russia (May 2019) has been one of the most important events for the professional international community of geneticists. Our partner company in Russia OOO MetaSystems considered it a good occasion to present the new camera CoolCube 4 connected to a state-of-the-art Neon system to the public.
