Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

Á÷Àå¾ÏÀÇ ¼ö¼ú ÈÄ ¹æ»ç¼± Ä¡·á ½Ã ±¹¼Ò Àç¹ßÀÇ ÀÓ»ó º´¸®Àû ¿¹ÈÄ ÀÎÀÚ The Clinicopathological Factors That Determine a Local Recurrence of Rectal Cancers That Have Been Treated with Surgery and Chemoradiotherapy

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ÃÖö¿ø ( Choi Chul-Won ) 
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±è¹Ì¼÷ ( Kim Mi-Sook ) 
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Á¶Ã¶±¸ ( Cho Chul-Koo ) 
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·ù¼º·Ä ( Yoo Seong-Yul ) 
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¾ç±¤¸ð ( Yang Kwang-Mo ) 
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À¯ÇüÁØ ( Yoo Hyung-Jun ) 
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±è¹Î¼® ( Kim Min-Suk ) 
¿øÀÚ·ÂÀÇÇпø º´¸®°ú
À̽¼÷ ( Lee Seung-Sook ) 
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Ȳ´ë¿ë ( Hwang Dae-Yong ) 
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Abstract

¸ñ Àû: ÁøÇàµÈ Á÷Àå¾ÏÀÇ ¼ö¼ú ÈÄ º¸Á¶Àû ¹æ»ç¼± Ä¡·á¸¦ ½ÃÇàÇÑ È¯ÀÚ¿¡¼­ ±¹¼Ò Àç¹ßÇÑ ±ºÀÇ º´¸®ÇÐÀû ¿¹ÈÄ ÀÎÀÚ¸¦
±Ô¸íÇÔÀ¸·Î½á ÇâÈÄ Ä¡·á ¹æħÀÇ °áÁ¤¿¡ µµ¿òÀÌ µÇ°íÀÚ ÇÏ¿´´Ù.

´ë»ó ¹× ¹æ¹ý: 1993³â 2¿ùºÎÅÍ 2001³â 12¿ù±îÁö ¿øÀÚ·ÂÀÇÇпø¿¡¼­ ¼ö¼úÀ» ½ÃÇàÇÑ ÈÄ º´±â 3±â ÀÌ»óÀ¸·Î ¹æ»ç¼±Ä¡
·á ¹× Ç×¾Ï ¿ä¹ýÀ» ½ÃÇà ¹ÞÀº Á÷Àå¾Ï ȯÀÚ 110¸íÀ» ´ë»óÀ¸·Î °Ëü¸¦ ¸ðµÎ Á¶»çÇÏ¿© ¸é¿ªÁ¶Á÷È­Çа˻簡 °¡´ÉÇÑ ÃÑ
54¸íÀ» ´ë»óÀ¸·Î ÇÏ¿´´Ù. ÀÌÁß ±¹¼ÒÀüÀÌ°¡ ¹ß°ßµÈ ±ºÀÌ 14¸í, ¹ß°ßµÇÁö ¾ÊÀº ±ºÀÌ 40¸íÀ̾ú´Ù. À̵éÀÇ Á¶Á÷ °Ëü¸¦
´ë»óÀ¸·Î Á¾¾çÀÇ Ä§À± ±íÀÌ, Á¾¾çÀÇ Á¶Á÷ÇÐÀû µî±Þ, ÀÓÆÄÀý ħÀ± ¿©ºÎ, Ç÷°ü ħÀ± ¿©ºÎ, ½Å°æ ħÀ± ¿©ºÎ µîÀÇ º´¸®Àû
ÀΠƯ¡ ¹× p53, Ki-67, c-erb, ezrin, c-met, phospho-S6K, S100A4, HIF-1 alphaÀÇ ´Ù¾çÇÑ ¾Ï À¯ÀüÀÚÀÇ ¹ßÇö¾ç»óÀ» ´Ü
º¯·® ºÐ¼® ¹× ´Ùº¯·® ºÐ¼®, hierarchical clustering ºÐ¼® ±â¹ýÀ» »ç¿ëÇÏ¿© Ä¡·á ÈÄ ¿¹ÈÄ¿Í °ü·ÃµÈ ÀÎÀÚ¸¦ ã¾Ò´Ù.

°á °ú: º´¸®ÇÐÀû ¿¹ÈÄ ÀÎÀÚ Áß ´Üº¯·® ºÐ¼®»ó Á¾¾ç ħÀ± ±íÀÌ, Á¾¾çÀÇ µî±Þ, Ç÷°ü ħ¹üÀÌ ÀÇ¹Ì ÀÖ¾ú°í ´Ùº¯·® ºÐ¼®
»ó ħÀ±ÀÇ ±íÀÌ°¡ 5.5 mm ÀÌÇÏ, Ç÷°ü ħÀ±ÀÌ ¾ø´Â °æ¿ì°¡ ±¹¼Ò Àç¹ßÀÌ ³·Àº ±ºÀ̾ú´Ù. ¸é¿ªÁ¶Á÷È­ÇÐ°Ë»ç °á°úÀÇ
´Üº¯·® ºÐ¼®»ó c-met ¾ç¼º, HIF-1 alpha ¾ç¼ºÀÌ ±¹¼Ò Àç¹ß·üÀÌ ³ôÀº ¿¹ÈÄ ÀÎÀÚ¿´°í ´Ùº¯·® ºÐ¼®»ó c-metÀÌ ÀÇ¹Ì ÀÖ
´Â ¿¹ÈÄ ÀÎÀÚ¿´´Ù. Hierarchical clusteringÀ» ÅëÇؼ­ Á¶»çÇÑ °á°ú HIF-1 alpha, c-met ¹× Á¾¾ç ħÀ± ±íÀÌ°¡ ±¹¼ÒÀç¹ß°ú
°ü·ÃµÈ ÀÎÀÚ·Î½á ±¹¼Ò Àç¹ßÀ» ÇÑ ±ºÀÇ 71.4%°¡ 3°¡Áö ÀÎÀÚ Áß 2°³ ÀÌ»óÀ» °¡Áö°í ÀÖ´Â ¹Ý¸é ±¹¼Ò Àç¹ßÀ» ÇÏÁö ¾Ê
Àº ±º¿¡¼­´Â 27.5%°¡ 2°³ ÀÌ»óÀ» °¡Áö°í ÀÖ¾ú´Ù.

°á ·Ð: ±¹¼ÒÀûÀ¸·Î ÁøÇàµÇ¾î ¹æ»ç¼± Ä¡·á¸¦ ½ÃÇàÇØ¾ß ÇÏ´Â Á÷Àå¾Ï ȯÀÚ±º Áß¿¡¼­ HIF-1 alpha ¾ç¼º, c-met ¾ç¼º,
Á¾¾ç ħÀ± ±íÀÌ 5.5 mm ÀÌ»óÀÇ º´¸®ÇÐÀû ¿¹ÈÄ ÀÎÀÚ¸¦ µÎ °³ ÀÌ»ó °¡Áö´Â ȯÀÚ´Â ±¹¼Ò Àç¹ßÀÇ °¡´É¼ºÀÌ ³ô´Ù. ÀÌ·¯
ÇÑ ÀÎÀÚ°¡ ¹æ»ç¼±Ä¡·á ÀúÇ×±ºÀÇ ÁöÇ¥·Î½á À¯¿ëÇÑÁö¿¡ ´ëÇÑ ÀüÇâÀû ¿¬±¸°¡ ÇâÈÄ ÇÊ¿äÇÒ °ÍÀÌ´Ù.

Purpose: To evaluate the pathological prognostic factors related to local recurrence after radical surgery and
adjuvant radiation therapy in advanced rectal cancer.

Materials and Methods: Fifty-four patients with advanced rectal cancer who were treated with radical surgery
followed by adjuvant radiotherapy and chemotherapy between February 1993 and December 2001 were enrolled
in this study. Among these patients, 14 patients experienced local recurrence. Tissue specimens of the patients
were obtained to determine pathologic parameters such as histological grade, depth of invasion, venous
invasion, lymphatic invasion, neural invasion and immunohistopathological analysis for expression of p53, Ki-67,
c-erb, ezrin, c-met, phosphorylated S6 kinase, S100A4, and HIF-1 alpha. The correlation of these parameters
with the tumor response to radiotherapy was statistically analyzed using the chi-square test, multivariate
analysis, and the hierarchical clustering method.

Results: In univariate analysis, the histological tumor grade, venous invasion, invasion depth of the tumor and
the over expression of c-met and HIF-1 alpha were accompanied with radioresistance that was found to be
statistically significant. In multivariate analysis, venous invasion, invasion depth of tumor and over expression of
c-met were also accompanied with radioresistance that was found to be statistically significant. By analysis with
hierarchical clustering, the invasion depth of the tumor, and the over expression of c-met and HIF-1 alpha
were factors found to be related to local recurrence. Whereas 71.4% of patients with local recurrence had 2 or
more these factors, only 27.5% of patients without local recurrence had 2 or more of these factors.

Conclusion: In advanced rectal cancer patients treated by radical surgery and adjuvant chemo-radiation
therapy, the poor prognostic factors found to be related to local recurrence were HIF-1 alpha positive, c-met
positive, and an invasion depth more than 5.5 mm. A prospective study is necessary to confirm whether these
factors would be useful clinical parameters to measure and predict a radio-resistance group of patients.

Å°¿öµå

Á÷Àå¾Ï;±¹¼Ò Àç¹ß;¿¹ÈÄ ÀÎÀÚ;¸é¿ªÁ¶Á÷È­Çа˻ç
Rectal cancer;Local recurrence;Prognostic factor;Immunohistochemical analysis

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