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New brain tumor gene identified for meningiomas

Date:
August 8, 2011
Source:
Expertanswer (Expertsvar in Swedish)
Summary:
The causes of brain tumors have been hard to discern in most cases. But researchers have previously identified an inherited predisposition for brain tumors. Now, in an international collaboration, they have also discovered a genetic variation that increases the risk of a certain type of brain tumor, called meningiomas.

The causes of brain tumours have been hard to discern in most cases. But Umeå University researchers in Sweden and their colleagues have previously identified an inherited predisposition for brain tumours. Now, in an international collaboration, they have also discovered a genetic variation that increases the risk of a certain type of brain tumour, called meningiomas.

Approximately 1,400 people are affected annually by tumours of the brain in Sweden and twenty per cent of those are afflicted with meningioma. The tumour itself is usually benign, but it can cause severe symptoms owing to of its location and because it is sometimes malignant. It arises from the meninges, and it is more common among women.

The study included samples from a total of 1,633 patients with meningiomas in Sweden, Germany, England, and Denmark. The results were published July 31 in the journal Nature Genetics.

The gene variant is close to MLLT10 on chromosome 10, a gene known to be involved in hematologic tumours. This gene has not previously been linked to increased risk of tumours.

"With more research we will be able to examine the function of these variants and whether they correlate with environmental factors, such as ionizing radiation, since the only environmental factor known previously for meningiomas is higher doses of ionizing radiation," says Beatrice Melin.

Co-authors of the study at Umeå University are researchers Beatrice Melin, Ulrika Andersson, Roger Henriksson, and Thomas Brännström.


Story Source:

The above story is based on materials provided by Expertanswer (Expertsvar in Swedish). Note: Materials may be edited for content and length.


Journal Reference:

  1. Sara E Dobbins, Peter Broderick, Beatrice Melin, Maria Feychting, Christoffer Johansen, Ulrika Andersson, Thomas Brännström, Johannes Schramm, Bianca Olver, Amy Lloyd, Yussanne P Ma, Fay J Hosking, Stefan Lönn, Anders Ahlbom, Roger Henriksson, Minouk J Schoemaker, Sarah J Hepworth, Per Hoffmann, Thomas W Mühleisen, Markus M Nöthen, Susanne Moebus, Lewin Eisele, Michael Kosteljanetz, Kenneth Muir, Anthony Swerdlow, Matthias Simon, Richard S Houlston. Common variation at 10p12.31 near MLLT10 influences meningioma risk. Nature Genetics, 2011; DOI: 10.1038/ng.879

Cite This Page:

Expertanswer (Expertsvar in Swedish). "New brain tumor gene identified for meningiomas." ScienceDaily. ScienceDaily, 8 August 2011. <www.sciencedaily.com/releases/2011/08/110808105953.htm>.
Expertanswer (Expertsvar in Swedish). (2011, August 8). New brain tumor gene identified for meningiomas. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2011/08/110808105953.htm
Expertanswer (Expertsvar in Swedish). "New brain tumor gene identified for meningiomas." ScienceDaily. www.sciencedaily.com/releases/2011/08/110808105953.htm (accessed April 20, 2014).

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