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Bcl-2 Expression in Endometrial Hyperplasia and Carcinoma
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KMID : 0360319980300061207
Abstract
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º» ¿¬±¸¿¡¼ bcl-2ÀÇ ¹ßÇöÀÌ Àڱ󻸷Áõ½ÄÁõ¿¡¼º¸´Ù Àڱ󻸷¾Ï¿¡¼ À¯ÀÇÇÏ°Ô ³·Àº °Í
(Æã±Õ÷ÏÇ¥ÁØÆÝÂ÷; 2.97¡¾1.09 vs 1.76¡¾1.35, p<0.01)ÀÌ È®ÀεǾî bcl-2´Â Àڱ󻸷Áõ½ÄÁõÀÌ
Àڱ󻸷¾ÏÀ¸·Î ÁøÇàÇÏ´Â °úÁ¤¿¡¼ÀÇ ÇÑ Çö»óÀ̰ųª bel-2¿¡ ÀÇÇÏ¿© À¯µµµÈ Àڱ󻸷Áõ½ÄÁõ
ÀÌ ´Ù¸¥ À¯ÀüÀÚÀû ÀÌ»ó¿¡ °øÁ¶ÇÏ¿© Àڱ󻸷¾ÏÀ» ÀÏÀ¸Å°µµ·Ï º¸Á¶Àû ¿ªÇÒÀ» ÇÒ °ÍÀ¸·Î ÃßÁ¤
µÈ´Ù. ¶ÇÇÑ Á¾¾çÀÇ ºÐȵµ°¡ ¥²ÀÎ °æ¿ì I ¶Ç´Â ¥±ÀÎ °æ¿ìº¸´Ù À¯ÀÇÇÏ°Ô bcl-2 ¹ßÇöÀÌ ³·¾Æ
(1.97 vs 0.60, p=0.022) Àڱ󻸷¾ÏÀÇ ºÐȵµ¿Í bel-2ÀÇ ¹ßÇöÀÌ °ü°è°¡ ÀÖÀ½À» ³ªÅ¸³»¾ú´Ù.
ÇÑÆí ºñÁ¤Çü Àڱ󻸷Áõ½ÄÁõ¿¡¼ÀÇ bcl-2Á¡¼ö°¡ ´Ü¼ø ¶Ç´Â º¹ÇÕ Àڱ󻸷Áõ½ÄÁõ¿¡¼º¸´Ù ³ô
¾Ò´ø Á¡Àº bcl-2°¡ ºñÁ¤Çü Àڱ󻸷Áõ½ÄÁõÀÇ À¯µµ¿¡±îÁö °ü·ÃÀÌ ÀÖÀ½À» ½Ã»çÇÏ´Â ¼Ò°ßÀÌ´Ù.
Purpose : To speculate the role of bcl-2 protooncogene in endometrial carcinogenesis
by determination of the expression of bcl-2 in endometrial hyperplasia and carcinoma.
Materials and Methods : We studied bcl-2 expression by an immunohistochemical
method in the paraffin-embedded blocks of 78 patients with endometrial hyperplasia, 64
with simple hyperpasia, 9 with complex hyperplasia and 5 with atypical hyperplasia
respectively, and 33 endometrial carcinoma treated at Asan Medical Center from June,
1989 to May, 1997. Intensity of bcl-2 staining was scored on a scale of 0 to 4,
calibrated by comparison with stromal lymphocytes, which always received a score of 4.
Results : The results of this study showed that bcl-2 was relatively highly expressed
in simple (n=64), complex (n=9) and atypical hyperplasias (n=5) with mean staining
scores of 2.95¡¾1.09 (Mean¡¾Standard Deviation), 2.78¡¾1.20 and 3.60¡¾0.89 respectively,
which showed no difference among histologic types. In endometrial carcinoma, the
expression of bcl-2 was significantly down regulated (mean score=1.76¡¾1.35) compared
with that of hyperplasia, and did not correlate with FIGO surgical stage. However, grade
¥² tumor showed significantly lower expression that grade ¥° or ¥± tumor.
Conclusion : Bcl-2 expression is down regulated in endometrial carcinoma than
endometrial hyperplasia, and correlates with tumor grade, which suggest that bcl-2
expression might be the result of carcinogenesis or bcl-2 plays only an adjunctive role
in the endometrial carcinogenesis.
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Endometrial hyperplasia; Endometrial carcinoma; Bcl-2 oncogene;
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