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Çѱ¹ÀÎ ½Å°æ¼¶À¯Á¾Áõ 2Çü ȯÀÚ¿¡¼­ÀÇ NF2 À¯ÀüÀÚ ¹è¼± µ¹¿¬º¯ÀÌ Germline Mutations of the NF2 Gene in Korean Neurofibromatosis 2 Patient

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Abstract

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Áõ'°ú '½Å°æ¼¶À¯Á¾Áõ 2Çü' ȤÀº 'ÁßÃ߽Ű漺 ½Å°æ¼¶À¯Á¾Áõ'ÀÇ µÎ °¡Áö·Î ºÐ·ùµÇ¸ç, ÀÌ µÎ ºÐ
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¸¥ °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Ù. ½Å°æ¼¶À¯Á¾Áõ 2Çü(neurofibromatosis type 2, NF2)Àº ¾çÃø¼º û½Å°æ
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Á¤Ã¼ÀÇ ÈÄÇǸ·ÇÏȥŹ(juvenile posterior subcapsular lenticular opacity) µîÀ¸·Î ¹ßÇöµÇ´Â Áú
ȯÀÌ´Ù. ÀÌ ÁúȯÀº ¸àµ¨ ¿ì¼º À¯ÀüÀ» ÇÏ´Â °ÍÀ¸·Î ¹àÇôÁ³À¸¸ç, ÇöÀç±îÁöÀÇ º¸°í¿¡ ÀÇÇϸé ÀÌ
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Wishart Çü°ú ¹ß»ý¿¬·ÉÀÌ ºñ±³Àû ´Ê°í ¾çÃø¼º û½Å°æÃÊÁ¾À¸·Î¸¸ ¹ßÇöµÇ´Â GardnerÇüÀÌ ÀÖ
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Purpose: Neurofibromatosis 2(NF2) is an autosomal dominant disease characterized by
development of bilateral acoustic neuroma and various central nervous system tumors
such as meningiomas, ependymomas, and schwannomas. Recent cloning of the gene
responsible for NF2, the NF2 gene, permits the presymptomatic genetic diagnosis of
affected individuals by direct analysis of the gene. This paper was intended to identify
germline mutations in Korean NF2 patients.
Materials and Methods: We collected blood samples from 15 clinically diagnosed NF2
patients treated at the Department of Neurosurgery, Seoul National University Hospital.
Purified genomic DNA samples were analyzed for mutations of the NF2 gene by using
polymerase chain reaction(PCR)-single strand conformation polymorphism(SSCP) method
followed by direct DNA sequencing.
Results: We were able to identify germline mutation of the NF2 gene in one patient.
The mutation identified was 1 base pair deletion(A) at codon 318, resulting in premature
stop codon due to frameshift.
Conclusion: Identification of the germline mutation in NF2 gene should enable us to
test all individual family members at risk to determine whether or not they carry the
mutant NF2 gene.

Å°¿öµå

Neurofibromatosis type 2; NF2 gene; Germline mutation;

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KoreaMed
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