Navigation Links
Disappearance of genetic material allows tumor cells to grow
Date:8/4/2011

Malignant Szary syndrome is characterized by the reproduction of a special type of white blood cells in the skin of male and female patients. In contrast to most other skin lymphomas, patients with Szary syndrome manifest not only skin contamination but also contamination of blood and lymph nodes by degenerate T cells even at the onset of the disease. The researchers investigated highly purified tumor cells from patients with Szary syndrome using modern, high-resolution genetic procedures (the so-called array comparative genomic hybridization technique) for hitherto unknown genetic changes. In doing so they identified areas in the genotype of these tumor cells that have become lost in many of the patients examined. A detailed analysis of these areas showed that one of the most frequently affected genes codes for a so-called transcription factor. Transcription factors have key functions in the regulation of cellular gene activity.

"The partial loss of the gene for transcription factor E2A appears to play an essential role in this context because the gene is normally of great importance for natural lymphocyte development," explains explained Chalid Assaf from the Charit Klinik fr Dermatologie, Venerologie und Allergologie. In mice a loss of this gene leads to the genesis of aggressive T cell lymphomas. However, a gene loss in one of the various human lymphoma classes had so far remained elusive.

The researchers also identified several E2A-regulated genes and signal paths in tumor cells, the mere deregulation of each of which is sufficient to enable a tumor to develop. "Loss of E2A in Szary syndrome is of crucial importance for the aggressive behavior of tumor cells because it contributes to more rapid, uncontrolled growth of cells," emphasized Stephan Mathas, a scientist at the Charit Klinik fr Hmatologie und Onkologie and at MDC. Consequently, it was directly proven for the first time that E2A in humans has the function of a tumor suppressor.

The researchers hope that these findings will lead to the development of new, more effective treatment concepts for patients with Szary syndrome.


'/>"/>

Contact: Barbara Bachtler
bachtler@mdc-berlin.de
49-309-406-3896
Helmholtz Association of German Research Centres
Source:Eurekalert

Related biology news :

1. Mallory and Irvine: Did extreme weather cause their disappearance?
2. Rare genetic disorder gives clues to autism, epilepsy, mental retardation
3. Genetic Engineering & Biotechnology News reports on growing role of molecular diagnostics
4. Study finds genetic variant plays role in cleft lip
5. Genetic finding implicates innate immune system in major cause of blindness
6. American College of Medical Genetics receives $13.5M NIH contract
7. Clue to genetic cause of fatal birth defect
8. Can genetic information be controlled by light?
9. The American Society of Human Genetics hosts 58th Annual Meeting in Philadelphia
10. Modern genetics vs. ancient frog-killing fungus
11. Genetic based human diseases are an ancient evolutionary legacy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2017)... May 23, 2017  Hunova, the first robotic gym for the rehabilitation ... officially launched in Genoa, Italy . The first 30 ... and the USA . The technology was developed and ... by the IIT spin-off Movendo Technology thanks to a 10 million euro ... Release, please click: ...
(Date:4/19/2017)... The global military biometrics market ... by the presence of several large global players. The ... major players - 3M Cogent, NEC Corporation, M2SYS Technology, ... 61% of the global military biometric market in 2016. ... military biometrics market boast global presence, which has catapulted ...
(Date:4/11/2017)... Fla. , April 11, 2017 ... and secure authentication solutions, today announced that it ... Intelligence Advanced Research Projects Activity (IARPA) to develop ... Thor program. "Innovation has been a ... IARPA,s Thor program will allow us to innovate ...
Breaking Biology News(10 mins):
(Date:9/20/2017)... ... September 20, 2017 , ... ... Koch Agronomic Services (Koch) to feature new innovations aimed at helping farmers solve ... quarter 2018. American Farmer airs Tuesdays at 8:30aET on RFD-TV. Check your local ...
(Date:9/20/2017)... ... ... Diversity focused business accelerator, The Refinery , announced today they are ... top technology-driven, women-led startups in Boston, MA, New Haven/Hamden, CT, and Newark, NJ. ... on that week – in Boston, it will be part of the City of ...
(Date:9/20/2017)... Baltimore, MD (PRWEB) , ... September 20, 2017 ... ... for digital pathology, and Huron Digital Pathology , a provider of whole ... Association’s 2017 Pathology Visions conference . The workshop, entitled “Successfully Deploying a Best-in-Class ...
(Date:9/20/2017)... (PRWEB) , ... September 20, 2017 , ... From industry ... therapy succeeded after standard medicine failed. Many of these people had lost all hope. ... Regression Free Download (pdf) , “Neil takes readers on ...
Breaking Biology Technology: