Balkan Journal of Medical Genetics (Dec 2013)

MOLECULAR CYTOGENETIC STUDY OF THE NF2 GENE DELETION IN MENINGIOMA IN SUDANESE PATIENTS

  • AbdElmontalab Farah Y.,
  • Fadl Elmula I.,
  • Abushama Hm.,
  • Kreskowski K.,
  • Liehr T.

DOI
https://doi.org/10.2478/bjmg-2013-0028
Journal volume & issue
Vol. 16, no. 2
pp. 29 – 32

Abstract

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Meningioma is the second most common adult central nervous system tumor. Mutations and/or deletions within the tumor suppressor gene neurofibromatosis type 2 (NF2) are associated with meningioma development and progression. We studied 29 meningioma samples by cytogenetic analysis and interphase fluorescence in situ hybridization (I-FISH) using a locus-specific probe for the NF2 gene region. We detected loss of the NF2 gene in all samples except for one. In 10 of the 29 samples, karyotypic analyses confirmed the I-FISH results and revealed additional numerical and/or structural rearrangements in nine of them. Our study confirmed: i) the limited role of banding cytogenetics in assessing chromosomal rearrangements in meningioma, as this tumor is hard to be grown in cell culture; ii) we could show that two-color I-FISH is well-suited for NF2-deletion screening. Our results were in accordance with those of comparable studies, even though the frequency of 97.0% of meningiomas with NF2 deletions is exceptionally high in the studied Sudanese patients

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