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ºñÀΰ­¾Ï¿¡¼­ ¿¹ÈÄÀÎÀڷμ­ÀÇ EGFR, p53, Cox-2, Bcl-2 ´Ü¹é¹ßÇö EGFR, p53, Cox-2 and Bcl-2 Expression in Nasopharyngeal Carcinoma and Their Potential Clinical Implication

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ÀÌ¿¬¼ö ( Lee Yeon-Soo ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ÀÓ»óº´¸®Çб³½Ç
À±¼¼Ã¶ ( Yoon Sei-Chul ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¹æ»ç¼±Á¾¾çÇб³½Ç
±è¿¬½Ç ( Kim Yeon-Sil ) 
°¡Å縯´ëÇб³ °­³²¼º¸ðº´¿ø ¹æ»ç¼±Á¾¾çÇаú
Á¤¼ö¹Ì ( Chung Su-Mi ) 
°¡Å縯´ëÇб³ °­³²¼º¸ðº´¿ø ¹æ»ç¼±Á¾¾çÇаú
ÀåÈ«¼® ( Jang Hong-Seok ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¹æ»ç¼±°úÇб³½Ç
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°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¹æ»ç¼±Á¾¾çÇб³½Ç

Abstract

¸ñ Àû: ºñÀΰ­¾ÏÁ¾ ȯÀÚµéÀÇ Á¾¾çÁ¶Á÷À¸·ÎºÎÅÍ EGFR, p53, Cox-2, Bcl-2 ´Ü¹é¹ßÇöÁ¤µµ¸¦ ÃøÁ¤ÇÏ°í ÀÓ»ó¾ç»ó, Ä¡·á¼ºÀû°úÀÇ °ü·Ã¼ºÀ» Á¶»çÇÏ¿© ÀÌµé ´Ü¹éÀÌ Ä¡·á¿¡ ´ëÇÑ ¹ÝÀÀ ¹× ¿¹Èĸ¦ ¿¹ÃøÇÒ ¼ö ÀÖ´Â »ý¹°ÇÐÀû Ç¥ÁöÀÚ(biomarker)·Î ÀÌ¿ëÇÒ ¼ö ÀÖ´ÂÁö ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

´ë»ó ¹× ¹æ¹ý: 1988³â 3¿ù 1ÀϺÎÅÍ 2002³â 8¿ù 15ÀϱîÁö ¼º¸ðº´¿ø°ú °­³²¼º¸ðº´¿ø¿¡¼­ ºñÀΰ­¾ÏÀ¸·Î Áø´Ü¹Þ°í ±ÙÄ¡Àû ¹æ»ç¼±Ä¡·á¿Í Ç×¾ÏÄ¡·á¸¦ ¹Þ¾Ò´ø ȯÀÚ 104¸í Áß ÆĶóÇÉ ºí·ÏÀÌ º¸Á¸µÇ¾î ÀÖ´Â 75¸íÀ» ´ë»óÀ¸·Î ÇÏ¿© ÈÄÇâÀû ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù. º´±â´Â 2002³â¿¡ °³Á¤µÈ AJCC·Î ÀçºÐ·ùÇÏ¿´À¸¸ç, ´ë»óȯÀÚÀÇ Hematoxylin-Eosin ¿°»ö ½½¶óÀ̵带 µÎ°æºÎ º´¸® Àü¹®Àǻ簡 Àç°ËÅäÇÏ¿© WHO ºÐ·ù¿¡ ¸Â°Ô ȯÀÚ±ºÀ» ºÐ·ùÇÏ¿´À¸¸ç ¿ªÇü¼º(anaplasia) À¯¹«, À¯»çºÐ¿­(mitosis) ºóµµ ÃøÁ¤ µî º´¸®Á¶Á÷ÇÐÀû ¼Ò°ßÀ» È®ÀÎÇÏ¿´´Ù. EGFR, p53, Cox-2, Bcl-2 ´Ü¹é¹ßÇö Á¤µµ¸¦ ¸é¿ªÁ¶Á÷È­Çп°»öÀ» ÅëÇØ ÃøÁ¤ÇÏ¿´À¸¸ç ÀÌµé ´Ü¹éÀÇ ¹ßÇöÁ¤µµ¿Í ÀÓ»óº´±â, Ä¡·á¼ºÀû°úÀÇ °ü·Ã¼ºÀ» Á¶»çÇÏ¿´´Ù.

°á °ú: Àüü 104¸í ȯÀÚÀÇ ÃßÀû±â°£Àº 5.5¢¦201°³¿ùÀ̾ú°í 3³â »ýÁ¸À²Àº 68.7%, 5³â »ýÁ¸À²Àº 53.5%, Áß¾Ó»ýÁ¸±â°£Àº 85.5°³¿ùÀ̾úÀ¸¸ç 3³â ¹«º´»ýÁ¸À²Àº 68.2%, 5³â ¹«º´»ýÁ¸À²Àº 51.5%, Áß¾Ó¹«º´»ýÁ¸±â°£Àº 61.1°³¿ùÀ̾ú´Ù. WHO ºÐ·ù 2¿Í 3 Á¾¾çÀº ¿ÏÀü°üÇØÀ²ÀÌ ³ô¾Æ Ç׾Ϲæ»ç¼±Ä¡·á(chemoradiotherapy)¿¡ ´ëÇÑ ¹ÝÀÀ¼ºÀÌ ³ôÀº °æÇâÀ» º¸¿´À¸¸ç(p=0.075), »ó´ëÀûÀ¸·Î Áø´Ü´ç½Ã ¸²ÇÁÀýÀüÀÌÀ²ÀÌ ³ô¾Ò°í, ¿ø°ÝÀüÀÌÇÒ È®·üÀÌ ³ô¾Ò´Ù. p53Àº ¹ßÇö Á¤µµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó »ýÁ¸À²ÀÌ ¶³¾îÁö°í À¯»çºÐ¿­Àº Áõ°¡ÇÏ¿´´Ù. Bcl-2 ¹ßÇöÀÌ Áõ°¡ÇÔ¿¡ µû¶ó Àç¹ß·üÀÌ ¶³¾îÁö´Â °æÇâÀ» º¸¿´À¸¸ç, WHO ºÐ·ù¿Í ¿¬°ü¼ºÀ» º¸¿´´Ù. Cox-2ÀÇ ¹ßÇöÀÌ Áõ°¡ÇÔ¿¡ µû¶ó »ýÁ¸À²ÀÌ ¶³¾îÁö°í, ¸²ÇÁÀýÄ¡·áÀ²µµ ³·Àº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±×·¯³ª EGFRÀº ¾î¶² ÀÎÀڿ͵µ »ó°ü°ü°è¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù.

°á ·Ð: ºñÀΰ­¾Ï¿¡¼­ Ä¡·á ÈÄ ¿¹Èĸ¦ ¿¹ÃøÇÒ ¼ö ÀÖ´Â »ý¹°ÇÐÀû Ç¥ÁöÀÚÀÇ °¡´É¼ºÀ» °¡Áø °ÍÀ¸·Î º¸°íµÇ°í ÀÖ´Â Cox-2, p53, Bcl-2, EGFR¿¡ ´ëÇÑ ¿¬±¸°á°ú Cox-2, p53, Bcl-2ÀÇ ¹ßÇöÁ¤µµ´Â Ç׾Ϲæ»ç¼±Ä¡·áÈÄ ¹ÝÀÀ·ü, »ýÁ¸À², Àç¹ß·ü°ú ¿¬°üÀ» º¸¿© ÇâÈÄ Ä¡·á°á°ú¸¦ ¿¹ÃøÇÒ ¼ö ÀÖ´Â ¿¹ÈÄÀÎÀڷμ­ÀÇ ÀÌ¿ë°¡´É¼ºÀÌ ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾úÀ¸¸ç º¸´Ù ½Ç¿ëÀûÀÎ »ý¹°ÇÐÀû Ç¥ÁöÀÚÀÇ ±Ô¸íÀ» À§Çؼ­ ÇâÈÄ º¸´Ù ¸¹Àº ȯÀÚ¸¦ ´ë»óÀ¸·Î ÇÑ ÀüÇâÀû ¿¬±¸°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ý°¢µÈ´Ù.

Purpose: To evaluate the relationship between the expression of EGFR, p53, Cox-2, Bcl-2 and the clinical parameters of NPC (nasopharyngeal carcinoma) patients treated with radiotherapy with/without chemotherapy, and to determine if these could be used as a biologic marker.

Materials and Methods: This study retrospectively examined 75 NPC patients who were pathologically diagnosed at St. Mary¡¯s Hospital and Kangnam St Mary¡¯s Hospital from March 1988 to August 2002 and treated with radiotherapy with/without chemotherapy. The levels of EGFR, p53, Cox-2, and Bcl-2 expression were determined immunohistochemically. The relationship between the levels of EGFR, p53, Cox-2 and Bcl-2 expression and the H-E staining findings including the WHO classification, TNM stage, tumor response to chemotherapy and radiotherapy, disease free survival (DFS), and overall survival (OS) was analyzed.

Results: At a median follow up of 50.8 months (range: 5.5¢¦201 months), the 3 years OS rate and PFS rate were 68.7% and 68.2%, respectively. The five year OS rate and PFS rate were 53.5% and 51.1%, respectively. The median OS duration and PFS duration were 85.5 months and 61.1 months, respectively. The WHO classification correlated with the complete response rate, lymph node metastasis and distant metastasis. The expression of p53 was associated with increased mitosis and poor overall survival. The expression of Bcl-2 correlated with the DFS and WHO classification. The expression of Cox-2 correlated with a poor overall survival and response rate in the lymph node. However, EGFR was not correlated with any factors.

Conclusion: These results suggest that the expression of p53, Cox-2, Bcl-2 plays role in predicting prognostic factors for NPC treated with radiotherapy with/without chemotherapy. However, further study on a larger number of patients will be needed to identify more useful biomarkers of NPC.

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Nasopharyngeal carcinoma;EGFR;p53;Cox- 2;Bcl- 2

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