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°Å¼¼ ÈÄ ÈòÁã Àü¸³¼± ³» Bax´Ü¹éÀÇ ¹ßÇö¿¡ ´ëÇÑ ÇüÅÂÇÐ ¹× Á¤·®Àû ºÐ¼® Morphological and Quantitative Analysis on the Expression of Bax in the Rat Prostate following Castration

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¹Ú¹®¼ö/Moon Soo Park ±è¼ö¿õ/ÃÖ±â/À̾ȱâ/ÀÌÀº½Ä/±è½ÃȲ/Soo Woong Kim/Gheeyoung Choe/Ahnkie Lee/Eunsik Lee/Si Whang Kim

Abstract

¼­·Ð
´ëºÎºÐÀÇ ³»ºÐºñ¼¼Æ÷ó·³ Àü¸³¼±Àº ¼¼Æ÷ÀÇ Áõ½Ä°ú »ç¸ÁÀÇ ±ÕÇü¿¡ ÀÇÇÏ¿© ÀÏÁ¤ÇÑ ¼¼Æ÷¼ö¸¦
À¯ÁöÇϸç, ÀÌ´Â ³²¼ºÈ£¸£¸ó¿¡ ÀÇÇÏ¿© Á¶ÀýµÈ´Ù. ³²¼ºÈ£¸£¸óÀ» Â÷´ÜÇϸé Àü¸³¼±»óÇǼ¼Æ÷ÀÇ Áõ
½ÄÀÌ ¾ïÁ¦µÉ »Ó¸¸ ¾Æ´Ï¶ó ±¤¹üÀ§ÇÑ ¼¼Æ÷ÀÇ »ç¸ÁÀÌ ÀϾ¸ç, ÀÌ´Â ¼¼Æ÷ÀÇ ´Éµ¿»ç(apoptosls)
¿¡ ÀÇÇÑ´Ù. ½ÇÁ¦·Î ¹é¼­¸¦ °Å¼¼Çϸé Á¤»ó Àü¸³¼±ÀÇ ¾à 80%¸¦ Â÷ÁöÇÏ´Â »óÇǼ¼Æ÷°¡ ÀÏÁÖÀÏ
³»¿¡ ¼Ò½ÇµÈ´Ù. ³»ºÐºñ¿ä¹ý¿¡ ´ëÇÑ Àü¸³¼±¾ÏÀÇ Ãʱâ¹ÝÀÀÀº Àü¸³¼±¼¼Æ÷ÀÇ ´Éµ¿»ç¿¡ ÀÇÇϸç,
ÀÌ´Â Àü¸³¼±Á¾¾ç¼¼Æ÷°¡ Á¤»ó Àü¸³¼±¼¼Æ÷¿Í ¸¶Âù°¡Áö·Î ³²¼ºÈ£¸£¸ó¿¡ ´ëÇÑ ÀÇÁ¸¼ºÀ» ³ªÅ¸³»
±â ¶§¹®ÀÌ´Ù. È£¸£¸ó ºñÀÇÁ¸¼º¾ÏÀÌ ÀÌ·¯ÇÑ ´Éµ¿»ç ±âÀüÀÇ Àå¾Ö¿¡ ÀÇÇÏ¿© ¹ß»ýÇÑ´Ù´Â °ßÇØ°¡
Áö¹èÀûÀÌ´Ù. ±×·¯¹Ç·Î ³²¼ºÈ£¸£¸óÀÇ Â÷´Ü¿¡ ÀÇÇÑ Àü¸³¼± ¼¼Æ÷ÀÇ ´Éµ¿»çÀÇ ±âÀüÀ» ¹àÈ÷´Â °Í
Àº È£¸£¸ó ºñÀÇÁ¸¼º Àü¸³¼±¾ÏÀÇ ¹ß»ý±âÀüÀ» ¹àÈ÷±â À§ÇÑ ¸Å¿ì Áß¿äÇÑ °úÁ¤ÀÌ ¶ó°í ÇÒ ¼ö ÀÖ
´Ù.
Bax´Ü¹é Àº Á¾¾çÀ¯ÀüÀÚ·Î ¾Ë·ÁÁø bcl-2´Ü¹é±ºÀÇ Çϳª·Î p53¿¡ ÀÇÇÏ¿© À¯µµµÇ¾î ¼¼Æ÷ÀÇ
»ç¸ÁÀ» ÃËÁø½ÃÅ°´Â °ÍÀ¸·Î ¾Ë·Á Á®ÀÖ´Ù. ±×·¯³ª Ç×¾ÏÁ¦³ª Àü¸® ¹æ»ç¼± µî À¯ÀüÀÚÀÇ Æı«°¡
¼±ÇàµÇ´Â ´Éµ¿»çÀÇ °æ¿ì¿Í´Â ´Þ¸® ³²¼ºÈ£¸£¸óÀÇ Â÷´Ü¿¡ ÀÇÇÑ Àü¸³¼±¼¼Æ÷ÀÇ ´Éµ¿»ç¿¡´Â p53
ÀÌ °ü¿©ÇÏÁö ¾Ê´Â´Ù´Â °ÍÀÌ ÀϹÝÀûÀÎ °ßÇØÀÌ´Ù. ±×·¯¹Ç·Î ³²¼ºÈ£¸£¸ó Â÷´Ü¿¡ ÀÇÇÑ Àü¸³¼±¼¼
Æ÷ÀÇ ´Éµ¿»ç¿¡ box´Ü¹éÀÇ ¿ªÇÒÀ» ±Ô¸íÇÏ´Â °ÍÀº ¸Å¿ì Áß¿äÇÑ Àǹ̸¦ °®´Â´Ù. ÀúÀÚµéÀº À̸¦
À§ÇÏ¿© ¼öÄÆ ÈòÁ㸦 °Å¼¼ÇÑ ÈÄ Àü¸³¼± ³» box´Ü¹é¿¡ ´ëÇÑ Á¤·®Àû ¹× ÇüÅÂÇÐÀû ºÐ¼®À» ÇÏ¿´
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#ÃÊ·Ï#
Purpose : Bax promotes apoptosis and is up-regulated by p53, which is not required
for androgen ablation-induced apoptosis of the prostatic cells. We investigated the
change of lax during the involution of the rat prostate following castration.
Materials and Methods : Adult male rats were castrated and the ventral prostatic
glands were removed daily for a week following castration. Western blot and
immunohistochemical analysis of lax protein were performed using anti-bax rabbit
polyclonal IgG.
Results : The prostatic weight decreased and the apoptotic cells began to appear 2
days following castration. Western blot analysis showed that lax was absent in the
control prostate but began to increase 4 days following castration. Immunohistochemical
analysis showed that bars was confined to the cells which had morphological
characteristics of the late stage of programmed cell death.
Conclusions : Present results suggest that bars might be involved in the late stage of
castration-induced apoptosis of the rat prostatic cells.
(Korean J Urol 1998; 39: 622¡­6)

Å°¿öµå

Bax; Prostate; Apoptosis; Castration; Rat;

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