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À§¼±Á¾°ú À§¼±¾Ï¿¡¼­ Bcl-xL ´Ü¹éÀÇ ¹ßÇö Bcl-xL Protein Expression in Gastric Adenoma and Adenocarcinoma

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Abstract

¸ñÀû :À§¼±Á¾ ¹× À§¼±¾Ï ³»¿¡¼­ ¸é¿ªÁ¶Á÷È­ÇÐÀû
°Ë»ç ¹æ¹ýÀ¸·Î ¾ÆÆ÷Åä½Ã½º¸¦ ¾ïÁ¦½ÃÅ°´Â ´ëÇ¥ÀûÀÎ
À¯ÀüÀÚÀÎ Bcl-xL ´Ü¹éÀÇ ¹ßÇö À¯¹«¸¦ °üÂûÇÏ°í, À§
¼±Á¾¿¡¼­ÀÇ ÀÌÇü¼º¿¡ µû¸¥ ¹ßÇöµµ Â÷ÀÌ ¹× À§¼±¾Ï
¿¡¼­ÀÇ º´±â¿¡ µû¸¥ ¹ßÇöµµÀÇ Â÷À̸¦ °üÂûÇÏ¿©
Bcl-xL ´Ü¹éÀÇ À§¾Ï ¹ß»ý ¹× ¿¹ÈÄ¿¡ ´ëÇÑ °ü·Ã¼ºÀ»
º¸°íÀÚ ÇÏ¿´´Ù. ´ë»ó ¹× ¹æ¹ý :°¡Å縯ÀÇ°ú´ëÇÐ ºÎ¼Ó
´ëÀü¼º¸ðº´¿ø¿¡¼­ »óºÎÀ§Àå°ü ³»½Ã°æÀû ¶Ç´Â ¿Ü°ú
ÀûÀ¸·Î ÀýÁ¦µÈ 66 ¿¹ÀÇ À§¼±Á¾ ¶Ç´Â À§¼±¾Ï Á¶Á÷À»
´ë»óÀ¸·Î ½Ç½ÃÇÏ¿´´Ù. ÃÑ 46 ¿¹ Áß À§¼±Á¾ 23 ¿¹, À§
¼±¾Ï 43 ¿¹¿´´Ù. À§¼±Á¾ÀÇ Á¶Á÷ÇÐÀû µî±ÞÀº À̺йýÀ»
ÀÌ¿ëÇÏ¿´À¸¸ç, À§¼±¾ÏÀÇ Á¶Á÷ÇÐÀû ºÐ·ù´Â ÀåÇü°ú ¹Ì
¸¸ÇüÀ¸·Î ºÐ·ùÇÏ¿´°í Á¾¾çÀÇ TNM ±â´Â I, II, III, IV
±â·Î ºÐ·ùÇÏ¿© ¸é¿ªÁ¶Á÷È­ÇÐÀû ¿°»öÀ» ½Ç½ÃÇÏ¿´´Ù.
°á°ú :À§¼±Á¾¿¡¼­ Bcl-xL ´Ü¹éÀÇ ¹ßÇö °­µµ´Â Á¶Á÷
ÇÐÀû µî±Þ, º´º¯ÀÇ À§Ä¡ ¹× Å©±â¿¡ µû¸¥ Åë°èÇÐÀû
À¯ÀÇÇÑ Â÷´Â º¸ÀÌÁö ¾Ê¾Ò´Ù (p=0.7679, 0.1841,
0.2642).À§¾Ï¿¡¼­ Bcl-xL ´Ü¹éÀÇ ¹ßÇö °­µµ´Â ¹Ì¸¸
Çüº¸´Ù ÀåÇüÀÌ, ÁøÇ༺ À§¾Ïº¸´Ù Á¶±â À§¾Ï¿¡¼­ ÀÇ
ÀÇ ÀÖ°Ô ³ô¾ÒÀ¸¸ç (p=0.029, 0.041),¸²ÇÁÀý ÀüÀÌ À¯
¹« ¹× TNM ºÐ·ù¿¡ ÀÇÇÑ º´±â¿¡ µû¸¥ Â÷ÀÌ´Â ¾ø¾ú
´Ù (p= 0.762, 0.346).°á·Ð : Bcl-xL ´Ü¹éÀº À§¾Ï ¹ß
»ý Ãʱ⿡ °ü¿©Çϳª À§¾Ï ÁøÇà¿¡ À־´Â °ü¿©ÇÏ
Áö ¾Ê´Â °ÍÀ¸·Î º¸À̸ç ÀÌ¿¡ ´ëÇؼ­´Â ÇâÈÄ ´Ù¸¥ ÀÎ
ÀÚµé°úÀÇ ºñ±³¿¬±¸¸¦ Æ÷ÇÔÇÑ Á»´õ ÀüÇâÀûÀÎ ¿¬±¸°¡
ÇÊ¿äÇÒ °ÍÀ¸·Î »ý°¢µÈ´Ù.

Backgroud/Aims: Apoptosis is necessary to appropriately delete cells during organ development, and serves as a protector against malignant transformation by removing damaged or mutated cells. Recently, Bcl-x has been cloned as a bcl-2-related
gene.
In
human, the Bcl-x gene encodes 2 proteins, a long form (Bcl-xL) and a short form (Bcl-xS), through an alternative splicing mechanism. The Bcl-xL protein inhibits apoptosis as effectively as Bcl-2 protein. The aim of this study was to investigate
the
immunohistochemical expression of Bcl-xL protein in the gastric adenoma and gastric adenocarcinoma. Methods: Immunohistochemical staining using monoclonal Bcl-xL antibody was performed on paraffin-embeded specimens obtained from 23 gastric
adenomas
and
43 gastric adenomcarcinomas. Results: When compared to the intensity observed in adjacent normal mucosal epithelial cells, immunostaining of Bcl-xL was observed in 22 of 23 (96%) adenomas, all of 13 (100%) early adenocarcinomas, and 19 of 30
(63.3%)
advanced adenocarcinomas. In gastric adenocarcinoma, Bcl-xL expression was observed in 24 of 28 (85.7%) intestinal type-adenocarcinomas and 8 of 15 (53.3%) diffuse type-adenocarcinomas. No correlation was observed between Bcl-xL expression and
tumor
stage. Conclusions: The Bcl-xL expression would be involved in the early phase of gastric carcinogenesis, but not in tumor progression.

Å°¿öµå

Bcl-xL; À§¼±Á¾; À§¼±¾Ï; xL; Gastirc adenocarcinoma; Gastric adenoma;

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