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bcl-2 and p53 Gene Expression in Colonic Adenoma and Carcinoma
¼Ò¼Ó »ó¼¼Á¤º¸
ÀÓ⿵/Chang Young Lim
±èÁ¤¿ø/¼ÛÀÏÇÑ/Áø¿µÁÖ/³ëÀÓȯ/¹Úµ¿±¹/Á¶Á¤Èñ/ÃÖ¼º¹è/Jeong Won Kim/Il Han Song/Young Joo Jin/Im Whan Rho/Dong Kook Park/Jeong Hee Cho/Sung Bae Choi
KMID : 0360319980300010089
Abstract
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¶ó ½Ä»ýÈ°ÀÇ º¯È, »ê¾÷ÀÇ ¹ß´Þ·Î ÀÎÇÑ ¹ß¾Ï ¹°Áú¿¡ÀÇ ³ëÃâ µîÀ¸·Î Çؼ ±× ¹ß»ý·üÀÌ Áõ°¡
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¸¹ÀÌ ÀÌ·ç¾îÁø Á¾¾çÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Ù. ÃÖ±Ù¿¡ ÀÖ¾î ¿ì¸® ³ª¶ó¿¡¼µµ ¾Ï»ç¸Á·üÀÇ 4À§¿¡ ÇØ´ç
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¾Ï¿¡ ÀÖ¾î¼ÀÇ À¯ÀüÀÚ ¹ßÇö¿¡ °üÇÑ ¿¬±¸¸¦ °èȹÇÏ¿´´Ù.
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Á¾ ¿¬¼Ó¼º(adenoma-carcinoma sequence)·Î ¾Ë·ÁÁ® ÀÖÀ¸¸ç, ºÐÀÚ À¯ÀüÇÐÀû º¯È°¡ °üÂûµÇ°í
ÀÖ´Ù. ±×·¯³ª, ±× ¿¬¼Ó¼ºÀÌ ´ëÀå¾ÏÀÇ ÀüºÎ¸¦ ¼³¸íÇÏ´Â °ÍÀº ¾Æ´Ï¸ç, ¾ÏÀ¯ÀüÀÚ¿Í Á¾¾ç ¾ïÁ¦
À¯ÀüÀÚ°¡ ¸¹ÀÌ ¾Ë·ÁÁ® ÀÖÀ¸³ª ±× »óÈ£ °ü·Ã¼ºÀ̳ª, °¢ ´Ü°è¿¡¼ °¡Áö´Â Àǹ̴ ¾ÆÁ÷ ÀÌÇØ°¡
¹ÌÈíÇÑ ½ÇÁ¤ÀÌ´Ù.
Á¾¾ç ¹ß»ýÀº ¿©·¯°¡ÁöÀÇ À¯ÀüÀÚ º¯ÀÌ°¡ ÃàÀûµÇ¾î °á±¹¿¡´Â ¾Ç¼º Á¾¾çÀÇ ÇüŸ¦ ÃëÇÏ´Â ´Ù
´Ü°è°úÁ¤À¸·Î ÀÌÇØÇÒ ¼ö ÀÖ´Ù Á¾¾ç ¹ß»ý¿¡ °ü¿©ÇÏ´Â À¯ÀüÀÚ º¯ÀÌ´Â ´Ù¾çÇÏ°í, ƯÁ¤ À¯ÀüÀÚ
ÀÇ ÁõÆø, Á¡ µ¹¿¬ º¯ÀÌ, Àç¹è¿, °á¼Õ µîÀÌ °ü¿©ÇÏ´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Ù. ±× ¿Ü ¾ÏÀ¯ÀüÀÚ¿Í
Á¾¾ç ¾ïÁ¦ À¯ÀüÀÚ°¡ º¸°íµÇ¾î ¿Ô´Ù. ´ëÀå¾ÏÀÇ ¾Ïȴ ǥÇǼ¼Æ÷ÀÇ ÀÌÇàÀÌ Àß °üÂûµÇ´Âµ¥ Á¤
»ó ¼¼Æ÷, °úÁõ½Ä¼º º¯È, ¼±Á¾, ¾ÏÀ¸·Î º¯È°¡ ÀÏ·ÃÀûÀ¸·Î ¹ß°ßµÈ´Ù.
ÀÌ·± Àǹ̿¡¼ º¼ ¶§ ¼¼Æ÷ÀÇ Áõ½ÄÀ̶õ Ãø¸éÀÌ Áß¿äÇÏ´Ù°í ÇÒ ¼ö ÀÖ´Ù.
¼¼Æ÷ÀÇ Áõ½ÄÀº Å©°Ô ¼¼Æ÷ÀÇ »ý¼º ºñÀ²°ú ¼¼Æ÷ÀÇ Á×À½ÀÇ ºñÀ²¿¡ ÀÇÇØ °áÁ¤µÈ´Ù°í ÇÒ ¼ö ÀÖ
´Ù.
ÃÖ±ÙÀÇ ºÐÀÚ À¯ÀüÇÐÀû °ü½ÉÀÇ Áõ°¡¿Í ÇÔ²² ¼¼Æ÷ÀÇ Á×À½¿¡ °üÇÑ ¿¬±¸°¡ È°¹ßÈ÷ ÁøÇàµÇ°í
ÀÖ´Ù. ¼¼Æ÷ÀÇ Á×À½Àº ¼¼Æ÷ ±«»ç¿Í apoptosis·Î ±¸ºÐµÇ´Âµ¥, ±× Áß apoptosisÀÇ °úÁ¤À» ´ëÀå
¿ëÁ¾°ú ´ëÀå¾ÏÀÇ ¿¬¼Ó¼º¿¡ Àû¿ë½ÃÅ°·Á´Â ½Ãµµ°¡ ÀÖ´Ù.
Apoptosis¶õ ±Þ°ÝÇÑ ¼¼Æ÷ ±«»ç¿Í ´Ù¸¥ °³³äÀ¸·Î programmed cell death·Î Á¤ÀǵǸç, ¼¼Æ÷
ÀÇ ¿¹Á¤µÈ ¼Ò¸êÀ̸ç, ÀÌ¿¡´Â À¯ÀüÀÚÀû Á¶ÀýÀÌ ÀÖÀ½ÀÌ º¸°íµÇ°í ÀÖ´Ù. ±× Áß ´ëÇ¥ÀûÀÎ °ÍÀÌ
bcl-2¶õ À¯ÀüÀÚÀÌ´Ù.
Bcl-2 À¯ÀüÀÚ´Â apoptosis¸¦ ¾ïÁ¦½ÃÅ°°í, ¼¼Æ÷ÀÇ Áõ½ÄÀ» ÀÏÀ¸ÄÑ, ÀáÀçÀûÀ¸·Î ´ëÀåÀÇ ¾ÏÈ
°úÁ¤¿¡ °ü¿©ÇÒ °ÍÀ¸·Î ¿¹ÃøµÇ°í ÀÖ´Ù. p53 Á¾¾ç ¾ï Á¦À¯ÀüÀÚ´Â apoptosis °úÁ¤¿¡¼ BÄ¡-2¿Í
¼·Î ±æÇ×ÀûÀ¸·Î ÀÛ¿ëÇÏ´Â ±âÀüÀÌ ÃÖ±Ù º¸°íµÇ°í ÀÖ´Ù. Bcl-2 À¯ÀüÀÚ´Â B-cell
lymphoma/leukemia-2 À¯ÀüÀÚÀÇ ¾à¾î·Î¼, óÀ½¿¡ follicular lymphoma¿¡¼ ±â¼úµÇ¾ú°í, ¿°
»öü 14;18 translocation¿¡ ÀÇÇØ ¹ß»ýµÇ¸ç, Bcl-2¿¡ ÀÇÇÑ ¼¼Æ÷ Áõ½ÄÀº Ç÷¾× Á¶Ç÷ ¼¼Æ÷¿Í Ç¥
ÇÇ ¼¼Æ÷¿¡¼ Áõ¸íµÇ¾ú´Ù. p53Á¾¾ç ¾ïÁ¦ À¯ÀüÀÚ´Â ÀÎüÁ¾¾ç¿¡¼ ÈçÈ÷ ¹ß»ýµÇ´Â µ¹¿¬ À¯ÀüÀÚ
À̸ç, ´ëÀå¾Ï¿¡¼´Â ¸¹ÀÌ º¸°íµÈ ½ÇÁ¤ÀÌ´Ù. BÄ¡-2¿Í »óÈ£ °ü·Ã¼º¿¡¼, BÄ¡-2´Â wild-type
p53¿¡ ÀÇÇØ À¯¹ßµÈ apoptosis¸¦ ¾ïÁ¦½ÃÅ°´Â °ÍÀ¸·Î ¾Ë·ÁÁ®, »óÈ£ ±æÇ×ÀÛ¿ëÀÌ ÀÖÀ½ÀÌ Èï¹Ì·Ó
´Ù.
´ëÀå ¿ëÁ¾°ú ´ëÀå¾Ï¿¡¼ bcl-2¿Í P53 À¯ÀüÀÚÀÇ ¹ßÇö Çö»ó°ú »óÈ£ °ü·Ã¼ºÀÇ º¸°í´Â ¾ÆÁ÷
¼Ò¼ö¿¡ ºÒ°úÇÏ°í, apoptosisÀÇ Ãø¸éÀÌ ´ëÀåÀÇ ¾ÏÈ °úÁ¤¿¡ ¾î¶² Àǹ̸¦ °¡Áú °ÍÀΰ¡¿¡ ´ëÇÑ
°íÂûÀÌ ÇÊ¿äÇÏ´Ù°í »ý°¢µÈ´Ù.
ÀÌ¿¡ º» ¿¬±¸ÀÚ´Â ¾ÏÈ °úÁ¤¿¡¼ apoptosisÀÇ ¾ïÁ¦ ±â´ÉÀÇ ¿ªÇÒÀÌ °ü·ÃµÈ ¹®Çå ¹× º¸°í°¡
ÀÖÀ½À» º¼ ¶§, ´ëÀå¿¡¼µµ ±× ¿ªÇÒÀÌ °ü·ÃµÊÀ» ¿¹ÃøÇÒ¼ö ÀÖ´Ù. ApoptosisÀÇ ÁÖµÈ Á¶Àý À¯Àü
ÀÚÀÎ bcl-2 À¯ÀüÀÚ°¡ ´ëÀåÀÇ Àü¾Ï¼º º´º¯ÀÎ ¼±Á¾°ú ´ëÀå¾Ï¿¡¼ ¹ßÇöµÇ´Â ¾ç»óÀ» Á¶»çÇϱâ·Î
ÇÏ¿´´Ù.
´ëÀåÀÇ ¾ÏÈ °úÁ¤¿¡¼ p53 À¯ÀüÀÚ´Â ÁÖ·Î Èı⠾ÏÈ ´Ü°è¿¡¼ ¹ßÇöµÊÀÌ ÇöÀç±îÁö ¸¹ÀÌ
¾Ë·ÁÁ³Áö ¸¸, bcl-2 À¯ÀüÀÚ¿ÍÀÇ ¹ßÇö ¾ç»óÀÇ ºñ±³´Â º¸°í°¡ ÀûÀº ½ÇÁ¤ÀÌ´Ù.
º» ¿¬±¸ÀÚ´Â ´ëÀå ¼±Á¾°ú ¾Ï¿¡¼ p53 À¯ÀüÀÚÀÇ ¹ßÇö ¾ç»óÀ» °üÂûÇÏ°í, bcl-2¿Í P53 À¯Àü
ÀÚÀÇ ¹ßÇö ¾ç»óÀ» ºñ±³ÇÏ¿© »óÈ£°£ÀÇ °ü·Ã¼ºÀ» °íÂûÇÏ°íÀÚ ÇÏ¿´´Ù.
Purpose : Recently, it is suggested that the inhibition of apoptosis is associated with
tumorigenesis of colon. Bcl-2 gene is an important inhibitory regulator of apoptosis, and
bcl-2 acts antagonistly with the wild type p53 gene, one of the tumor suppressor genes,
in apoptosis. To determine the role of Bcl-2 and pS3 gene in colonic tumorigenesis, we
performed the study.
Materials and Methods : We tested the tissue obtained by polypectomy and surgical
resection by immunohistochemical staining for Bcl-2 and p53.
Results : We found that in normal colonic tissue, the Bcl-2 was sparcely expressed,
and the p53 was expressed sporadically. The rate of positivity of staining was below
5%. However, in colonic adenoma and colon cancer tissue, Bcl-2 and p53 were
expressed more than in normal colonic tissue(p<0.05). (Scoring in Colonic adenoma:
Bcl-2 6.2¡¾ 1.1, p53 5.7¡¾1.0; Scoring in Colonic carcinoma: Bcl-2 4.7¡¾1.0, p53 8.3¡¾0.9)
Conclusion : Our results suggested that the Bcl-2 and p53 play an important role in
colonic tumorigenesis.
Å°¿öµå
Colonic adenoma; Colonic carcinoma; Bcl-2 gene; p53 gene;
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