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À¯¹æ¾Ï¿¡¼­ c-erbB-2¿Í CD44 À¯ÀüÀÚÀÇ ¹ßÇö The Expression of c-erbB-2 and CD44 Gene in Breast Cancer

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Abstract

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üÀÇ ÀÚ¿¬ °æ°ú(natural history) ¿¡ ´ëÇÑ ¸íÈ®ÇÑ ÀÌÇØÀÇ ºÎÁ·À̶ó ÇÏ°Ú´Ù. ±Ù·¡¿¡ ¹ß´ÞµÈ ºÐ
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Ä¡·á°¡ ÇÊ¿äÇÑ È¯ÀÚµéÀ» ¼±º°ÇÒ ¼ö ÀÖÀ» °ÍÀ̸ç, ³ª¾Æ°¡ º´ÀÇ ÃßÀû°ü¸®°èȹµî¿¡µµ ±× À¯¿ë
¼ºÀÌ È®´ëµÉ °ÍÀ¸·Î ±â´ëµÈ´Ù. º» ¿¬±¸¿¡¼­´Â, ¼ºÀåÀÎÀÚÀÇ ¼ö¿ëü¿ªÇÒÀ» ÇÏ´Â ¸·´ç´Ü¹éÁúÀ»
¸¸µé¾î ¼¼Æ÷½ÅÈ£Àü´Þü°è¿¡ °ü¿©Çϸç, ÀÎüÀÇ ¿©·¯ ¼±¾Ï¿¡¼­ ±× ÁõÆøµÈ ¹ßÇöÀÌ ºó¹øÈ÷ °üÂû
µÇ´Â c-erbB-2 ¼¼Æ÷¾ÏÀ¯ÀüÀÚ¿Í, ¼¼Æ÷À̵¿, ¼¼Æ÷¿Ü ±âÁúºÎÂø¿¡ °ü¿©ÇÏ´Â ¼¼Æ÷Ç¥¸é ´ç´Ü¹éÁú
À» ¸¸µé¾î ÇüŹ߻ý, ¿°Áõ, ¸²ÇÁ±¸º¹±Í(homing) ¹× Á¾¾çÀüÀ̱â´ÉÀ» °¡Áø °ÍÀ¸·Î ¾Ë·ÁÁø
CD44 À¯ÀüÀÚÀÇ ¹ßÇöÀ» À¯¹æ¾ÏÁ¶Á÷¿¡¼­ ¸é¿ªÁ¶Á÷È­ÇÐÀû¿°»ö¹æ¹ýÀ¸·Î °Ë»çÇÏ¿´´Ù. ±×¸®ÇÏ¿©
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¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.
#ÃÊ·Ï#
Purpose : There are some controversial opinions on the prognostic value of
metastasis-associated tumor markers in breast cancer. Out of them, the overexpression
of c-erbB-2 proto-oncogene or CD44 gene has been debated on their activities in
promoting metastatic potential.
Materials and Methods : To determine the relationship between expression of these
genes, and, clinicopathological parameters and disease outcomes including relapse and
survival, 48 archival paraffin-embeded breast-cancer tissues were stained using
monoclonal antibody against each gene product by immunohistochemical staining method,
and the result was analyzed.
Results : The positive expression rates of c-erbB-2 and CD44 genes were 45.8% and
18.8%, respectively. The expression rates of both genes were 14.6% and 50% of cases
showed no expression of either gene. Except the statistically significant positive
correlation between CD44 and tumor size (P=0.003), the expression of c-erbB-2 or CD44
expression had no significant relationship with tumor size, stage, lymph node status, and
disease recurrence (P>0.05). In the positive expression cases for CD44, disesase-free
survival (DFS) and overall survival(OS) in months were shorter than the negave ones
(53¡¾8 vs. 64¡¾5 and 67¡¾8 vs. 77¡¾5 S.E.). And, the c-erbB-2 positive cases had longer
OS than the negative ones (78¡¾6 vs. 71¡¾6). The OS of positive co-expression cases
with the c-erbB-2 and CD44 was shorter than that of one-gene expression ones (66¡¾6
vs. 75¡¾7). Thus the OS result observed in the expression of c-erbB-2 alone was
reversed in the co-expression study. Though these results had no statistically significant
level (P>0.05).
Conclusion : We suggest a question if there is any interaction or dependency between
c-erbB-2 and CD44 expression in view of disease process including OS. Finally, further
randomised controlled studies are advisable for the reproducible and significant results.

Å°¿öµå

Breast cancer; CD44; c-erbB-2;

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