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À¯¹æ¾ÏÀÇ ¿¹ÈÄ¿¡ ´ëÇÑ DNA topoisomerase ¥±¿Í P-´ç´Ü¹é ¹ßÇöÀÇ À¯¿ë¼º Expression of DNA Topoisomerase ¥± and P-Glycoprotein in Breast Cancer

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Abstract

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Ç×¾ÏÂ¥¿¡ ´ëÇÑ ¾àÁ¦³»¼ºÀº Ç÷Áß ³óµµ¿¡ µµ´ÞÇÒ ¼ö ÀÖ´Â Ç×¾ÏÁ¦ÀÇ Åõ¿©¿¡µµ ºÒ±¸ÇÏ°í ¾Ï¼¼
Æ÷°¡Á×Áö ¾Ê´Â °æ¿ì¸¦ ¸»Çϸç,±× ±âÀüÀº ¼¼Æ÷¿ÜÀû ³»¼º°ú ¼¼Æ÷³»Àû ³»¼ºÀ¸·Î ±¸ºÐÇÒ ¼ö ÀÖ
´Ù. ´Ù¾àÁ¦ ³»¼ºÀº ¾Ï¼¼Æ÷°¡ ÇÑ °¡Áö Ç×¾ÏÁ¦¿¡ ³ëÃâµÇ¾î ³»¼ºÀÌ ¹ßÇöµÈ ÈÄ, ÀÌ Ç×¾ÏÁ¦¿Í È­
ÇÐÀû ±¸Á¶ ¹× ÀÛ¿ë ±âÀüÀÌ ´Ù¸¥ ¿©·¯ Ç×¾ÏÁ¦¿¡ µ¿½Ã¿¡ ³»¼ºÀ» ³ªÅ¸³»´Â Çö»óÀ» ¸»ÇÑ´Ù. ÀÌ
Áß P-´ç´Ü¹é¿¡ ÀÇÇÑ ´Ù¾àÁ¦³»¼ºÀº °¡Àå ´ëÇ¥ÀûÀÎ ´Ù¾àÁ¦³»¼º ±âÀüÀ¸·Î, ¾Ï¼¼Æ÷ÀÇ ¼¼Æ÷¸·¿¡
PgP¶ó´Â ´Ü¹éÁúÀÇ ¹ßÇöÀÌ Áõ°¡ÇÏ¿© ¼¼Æ÷³»ÀÇ Ç×¾ÏÁ¦¸¦ ¼¼Æ÷ ¹ÛÀ¸·Î ¹èÃâ½ÃÄÑ ¼¼Æ÷³»ÀÇ Ç×
¾ÏÁ¦ ³óµµ¸¦ ÀúÇϽÃÅ´À¸·Î½á ³»¼ºÀ» ³ªÅ¸³½´Ù. ÀÌ´Â mdrl À¯ÀüÀÚ¿¡ ÀÇÇØ ¸¸µé¾îÁö´Â ´Ü¹éÀ¸
·Î, Ç×¾ÏÁ¦ Ä¡·á¿¡ ÀÇÇØ PgPÀÇ ¹ßÇöÀÌ À¯µµµÇ°Å³ª PgPÀÇ ¹ßÇöÀÌ ³ôÀº ¾Ï¼¼Æ÷°¡ ¼±ÅõǴÂ
°ÍÀ¸·Î ÀÌÇصǰí ÀÖ´Ù.
Topoisomerase´Â DNA °¡´Ú¿¡ ÀϽÃÀûÀ¸·Î Æı«¸¦ ÀÏÀ¸Å°´Â È¿¼Ò·Î¼­, DNA º¹Á¦, Àü»ç,
Àç°áÇÕ¿¡ Áß¿äÇÑ ¿ªÇÒÀ» ÇÑ´Ù ¸¹Àº Ç×¾ÏÁ¦µéÀÌ ÀÌ topoisomerase-¥±ÀÇ ÀÛ¿ëÀ» ¾ïÁ¦ÇÔÀ¸·Î½á
Ç×¾ÏÀÛ¿ëÀ» ³ªÅ¸³»´Â °ÍÀ¸·Î ¾Ë·ÁÁ® Àִµ¥, µû¶ó¼­ ÀÌµé ¾àÁ¦ÀÇ °øÅëÀÇ ¼¼Æ÷³» Ç¥ÀûÀÎ
topoisomerase-¥±ÀÇ ¾çÀû °¨¼Ò ȤÀº µ¹¿¬º¯ÀÌ¿¡ ÀÇÇÑ ÁúÀû º¯È­°¡ ÀϾ´Â °æ¿ì ÀÌµé ¾àÁ¦
¿¡ µ¿½Ã¿¡ ³»¼ºÀ» ÀÏÀ¸Å³ ¼öÀÖ´Ù. ±×·¯³ª ÀÌ ±âÀü¿¡ ÀÇÇÑ ´Ù¾àÁ¦ ³»¼ºÀÇ ÀÓ»óÀû Á߿伺¿¡
´ëÇؼ­´Â ¾ÆÁ÷ ÃæºÐÈ÷ ¿¬±¸µÇ¾î ÀÖÁö ¾ÊÀº ½ÇÁ¤ÀÌ´Ù.
ÀúÀÚµéÀº À¯¹æ¾Ï¿¡¼­ DNA topoisomerase ¥±¿Í P-´ç´Ü¹éÀÇ ÀÓ»óÀû Á߿伺À» ¾Ë¾Æº¸°íÀÚ
±× ¹ßÇöÀ» ¸é¿ªÁ¶Á÷ È­ÇйýÀ¸·Î »ìÆ캸°í, ¿©·¯ ¿¹ÈÄ ÀÎÀÚ ¹× Àç¹ß, ÀüÀÌ, »ýÁ¸À²°úÀÇ °ü°è
¸¦ °ËÅäÇØ º¸¾Ò´Ù.
#ÃÊ·Ï#
Purpose : To determine whether the expression of DNA topoisomerase ¥± and
P-glycoprotein are of prognostic value.
Materials and Methods : We evaluated the expression of DNA topoisomerase ¥± and
lycoprotein immunohistochemically in a retrospective study of samples from 44 patients
with breast cancer. Thirty two among 44 patients (72.7%) received chemotherapeutic
treatments (CMF or FAC protocol) and/or tamoxifen postoperatively.
Results : P-glycoprotein was detected in the 27 samples of 44 patients (61.3%). The
expression of P-glycoprotein was increased in the patients older than 50 years, with
distant metastases, and with death on follow-up. DNA topoisomerase ¥± was detected in
the 34 samples of 44 patients (77.2%). The expression of topoisomerase ¥± was
increased in the patients younger than 50 years, with recurrent tumor, with distant
metastases, and with death on follow-up. The expression of P-glycoprotein and
topoisomerase ¥± was not coirelated with other clinico-pathological factors including the
size of primary tumor, involvement of Iymph node, histologic grade, and clinical stage.
The correlation between expression of P-glycoprotein and topoisomerase ¥± was not
significant.
Conclusion : The immunohistochemical evaluation of P-glycoprotein and topoisomerase
¥± before treatment in breast cancer has little clinica] prognostic value.

Å°¿öµå

DNA topoisomerase ¥±; p-glycoprotein; Breast cancer; Immunohistochemistry;

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