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¿øÀÎºÒ¸í ¹«Á¤ÀÚÁõ ȯÀÚ¿¡¼­ Y ¿°»öü Àå¿Ï³» Azoospermia Factor ºÎÀ§ÀÇ ¹Ì¼¼°á½Ç Microdeletions in the Azoospermia Factor Region on the Y Chromosome Long Arm of Males with Idiopathic Azoospermia

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Abstract

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ÀçÇÒ °ÍÀ̶ó´Â °¡¼³ÀÌ Á¦½ÃµÇ¾úÀ¸¸ç, ±âŸ ¼¼Æ÷À¯ÀüÇÐÀû ¹æ¹ý¿¡ ÀÇÇÏ¿© azo-ospermia
factor(AZF)°¡ Yq¿¡ À§Ä¡ÇÏ°í ÀÖÀ½ÀÌ È®ÀεǾú´Ù. ³²¼ººÒÀÓ°ú °ü·ÃÀÌ ÀÖÀ» °ÍÀ¸·Î ÃßÁ¤µÇ´Â
¿©·¯ À¯ÀüÀÚÁß¿¡¼­ Interval 6(Yq 11. 23)³»ÀÇ °á½ÇÀÌ Á¤ÀÚÇü ¼º±â´É°ú ¹ÐÁ¢ÇÑ °ü·Ã¼ºÀÌ ÀÖ
´Ù´Â Áõ°ÅµéÀÌ ¿©·¯ Æ÷À¯µ¿¹°¿¡¼­ Á¦½ÃµÈ ¹Ù ÀÖ´Ù. Àΰ£¿¡¼­´Â Y»ó¿°»öü ÀüÀ§ ¶Ç´Â Yq °Å
´ë °á½ÇÀ» °®´Â ȯÀÚ¸¦ ´ë»óÀ¸·Î ÇÑ ¿¬±¸ º¸°í¿¡ ÀÇÇϸé Á¤»óÀûÀÎ Á¤ÀÚÇü¼º±â´ÉÀ» À¯ÁöÇϱâ
À§ÇÏ¿© Y ¿°»öü¿¡ ¿ÏÀüÇÑ euchromatinÀÇ Á¸Àç°¡ ÇʼöÀûÀÎ °ÍÀ¸·Î »ç·áµÈ´Ù.
±×·¯³ª ³²¼ººÒÀÓ È¯ÀÚ±º¿¡¼­ ÇÙÇüºÐ¼®¿¡ ÀÇÇÏ¿© °Ë»ö°¡´ÉÇÑ YqÀÇ °Å´ë°á½ÇÀÌ ³ªÅ¸³ª´Â
°æ¿ì´Â ½ÇÁ¦·Î ÈçÄ¡ ¾Ê´Ù. µû¶ó¼­ ¿øÀκҸíÀÇ ºÒÀÓȯÀÚ±º¿¡¼­ Çö¹Ì°æÀû °Ë»ö¼öÁØ ÀÌÇÏÀÇ ¹Ì
¼¼°á½ÇÀÌ Yq¿¡ Á¸ÀçÇÒ °ÍÀ̶ó´Â ÃßÁ¤ÀÌ °¡´ÉÇÏ´Ù ½ÇÁ¦·Î Y ¿°»öü-ƯÀÌÀû probe¸¦ ÀÌ¿ëÇÑ
Southern hybrdization¿¡ ÀÇÇÏ¿© ÀÌ·¯ÇÑ ¹Ì¼¼°á½ÇÀÌ Yq¿¡ Á¸ÀçÇÏ´Â °ÍÀ¸·Î ¹àÇôÁ³À¸¸ç ±×
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¿ëÀ¸·Î Maemd¿¡ ÀÇÇÏ¿© Y-chromosome RNA binding motif(RBM1:YRRM1)°¡ µ¿Á¤µÇ¾î
±× ¿°±â¼­¿­ÀÌ ¹àÇôÁ³À¸¸ç ¹«Á¤ÀÚÁõ ȯÀÚ¿¡¼­ ÀÌ ÁÂÀ§ÀÇ °á½ÇÀÌ °üÂûµÇ¾î Yqll.23³» AZFÈÄ
º¸À¯ÀüÀڷμ­ÀÇ °¡´É¼ºÀÌ Á¦½ÃµÇ¾ú´Ù. ÀÌÈÄ AZFÀÇ ¶Ç ´Ù¸¥ Èĺ¸À¯ÀüÀÚ·Î deleted In
azoospermia(DAZ, SPGY)ÀÇ µ¿Á¤ÀÌ ÀÌ·ç¾îÁ³´Ù. ÀÌµé µÎ À¯ÀüÀÚ´Â ¸ðµÎ ¹«Á¤ÀÚÁõ ȯÀÚ¿¡¼­
º¸ÆíÀûÀ¸·Î °á½ÇÀ» º¸ÀÌ´Â Yqll.23 ºÎÀ§¿¡ Á¸ÀçÇÏ¸ç °íȯ-ƯÀÌÀûÀÎ ¹ßÇö¾ç»óÀ» º¸ÀÌ´Â °ÍÀ¸
·Î ³ªÅ¸³µ´Ù ÇÏÁö¸¸ multigene familyÀÎ µÎ À¯ÀüÀÚ Áß RBMÀÇ ¿°±â¼­¿­ÀÌ Y¿°»öüÀÇ ´Ü¿Ï
(Yp)¿¡¼­µµ Á¸ÀçÇϴµ¥ ºñÇÏ¿© DAZÀÇ °æ¿ì YqÀÇ ÇÑÁ¤µÈ ºÎÀ§¿¡¸¸ Á¸ÀçÇÏ°í ¶ÇÇÑ ÃÊÆĸ®
ÀÇ ºÒÀÓÀ¯ÀüÀÚ boule¿Í ¸Å¿ì À¯»çÇÑ ¿°±â¼­¿­À» º¸Àδٴ »ç½Ç·Î DAZ°¡ º¸´Ù °¡´É¼ºÀÌ ³ô
Àº AZFÀÏ °ÍÀ¸·Î »ç·áµÈ´Ù ±×·¯³ª À̵é À¯ÀüÀÚ °á½ÇÀÌ Á¤ÀÚÇü¼º±â´ÉºÎÀüÀÇ À¯ÀÏÇÑ À¯ÀüÀû
¿øÀÎÀÏ °ÍÀ¸·Î ´ÜÁ¤Çϱ⿡´Â ÇöÀç±îÁö È®½ÇÇÑ Áõ°Å°¡ ºÎÁ·ÇÏ´Ù
¹«Á¤ÀÚÁõ¿¡ ÀÇÇÑ ºÒÀÓÀ̶ó´Â ÃÖÁ¾Àû Ç¥ÇöÇüÁúÀº ´Ù¾çÇÑ ÇüÅÂÀÇ Á¤ÀÚÇü¼º°úÁ¤»ó ÀÌ»óÀ¸·Î
³ªÅ¸³­´Ù. À̵éÀº ¹ß´Þ´Ü°è¿¡ ÀÖ´Â Á¤ÀÚ¼¼Æ÷°¡ ÀüÇô ¹ß°ßµÇÁö ¾Ê´Â Sertoli-cell-only
syndrome(SCO)¿¡¼­ºÎÅÍ ¼º¼÷°úÁ¤ÀÇ ÀÌ»ó±îÁö ³ÐÀº ¹üÀ§¿¡ °ÉÃÄ ³ªÅ¸³­´Ù. º» ¿¬±¸´Â ÃÖ±Ù
º¸°íµÈ Y ¿°»öüÀÇ sequence tagged site(STS) mapÀ» ÀÌ¿ëÇÏ¿© AZF°¡ Áö´Ï´Â À¯ÀüÀû º¹
ÇÕ¼ºÀÌ ½ÇÁ¦·Î ´ÜÀÏ ÁÂÀ§¿¡ Á¸ÀçÇÏ´Â À¯ÀüÀÚ¿¡ ÀÇÇÏ¿© Á¤ÀÚÇü¼º°úÁ¤ÀÌ Á¶ÀýµÇ¸ç ¶ÇÇÑ ÀÌ·¯
ÇÑ À¯ÀüÀÚ °á½ÇÀÌ °íȯÁ¶Á÷ ¼öÁØ¿¡¼­ ƯÀÌÀû Ç¥ÇöÇüÁú°ú °ü·ÃÀÌ ÀÖ´ÂÁö °ËÅäÇϱâ À§ÇÏ¿© ½Ç
½Ã ÇÏ¿´´Ù.
#ÃÊ·Ï#
Purpose : Idiopathic azoospermia is the most common cause of male infertility
Recently, much efforts have been focused on possible genetic etiologies. Mutations in the
region of the Y chromosome long arm(Yq), known as the azoospermia factor(AZF)
region, have been suggested. In the present study, we analysed Korean azoospermic men
with cytologically normal Y chromosomes to examine possible genetic variations In
regions of Yq, known to be associated with impaired spermatogenesis.
Materials and Methods: A total of 63 idiopathic azoospermic subiects were examined.
Other cases Included in this study are as follows; 13 subjects with oligospermia, 12
subjects with chromosomal anomalies(eleven 47XXY patients, one 46xx male) and 2
normal subjects. Genomic DNAs were isolated from peripheral blood samples. Each
sample was examined for the presence or absence of a total of 28 Y-DNA landmarks in
the Yq including DAZ and RBM. To facilitate the analysis, we adopted multiplex PCR
where simultaneous amplification of several targets is possible in a single reaction.
Results: We detected deletions of small, interstitial portions of the Yq In a total of 14
azoospermia patients(22.2%). Deletion incidence were 14.3% for DAZ and 17.5% for other
loci(sy157, sy153, sy127, sy109). But deletion of RBM was not detected. Multiple
deletions were found in 4 subjects. One patient with 47XXY and one patient with 46xx
male also showed multiple deletions. However, testis biopsies revealed diverse histologic
appearances in these subjects.
Conclusions: As other deletions than DAZ were also found within AZF region, it is
possible that normal spermatogenesis may be regulated by more than one locus in the Y
chromosome; thus, it has yet to be waited to correlate genetic causatives and testicular
phenotypes.

Å°¿öµå

Idiopathic azoospermia; Azoospermia factor; Multiplex polymerase chain reaction;

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