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À§¼±¾Ï ȯÀÚÀÇ ¸»ÃÊÇ÷¾×¿¡¼­ ¿ªÀü»ç ÁßÇÕÈ¿¼Ò ¿¬¼â¹ÝÀÀÀ» ÀÌ¿ëÇÑ Cytokeratin 20 ¾ç¼º ¹Ì¼¼ ÀüÀÌ ¾Ï¼¼Æ÷ÀÇ Áø´Ü Detection of disseminated tumor cells using reverse transcriptase PCR for cytokeratin 20 in peripheral blood isolates from gastric cancer patients

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À̽ÂÈÆ ( Lee Seung-Hoon ) 
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ÁøÁ¾À² ( Jin Jong-Youl ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¼º°¡º´¿ø ³»°úÇб³½Ç
¼ÛÄ¡¿ø ( Song Chi-Won ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¼º°¡º´¿ø ³»°úÇб³½Ç
ÀÌÈñÁø ( Lee Hee-Jin ) 
°¡Å縯´ëÇб³ ¼º°¡º´¿ø ÀÓ»óÀÇÇבּ¸¼Ò
¹ÚÀçÈÄ ( Park Jae-Hoo ) 
¿ï»ê´ëÇб³º´¿ø ³»°ú
¹Ú¿µ¼¼ ( Park Young-Se ) 
°­³² Â÷º´¿ø »êºÎÀΰú
¹éâ·Ä ( Paik Chang-Nyol ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¼º°¡º´¿ø ³»°úÇб³½Ç
ÀÌÁØ¿í ( Lee Joon-Wook ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¼º°¡º´¿ø ³»°úÇб³½Ç
¿ì¿µ½Ä ( Woo Yeong-Sik ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¼º°¡º´¿ø ³»°úÇб³½Ç
±èÈñÁß ( Kim Hee-Jung ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¼º°¡º´¿ø ³»°úÇб³½Ç
±èÃáÃß ( Kim Chun-Choo ) 
°¡Å縯´ëÇб³ ÀÇ°ú´ëÇÐ ¼º°¡º´¿ø ³»°úÇб³½Ç

Abstract

¸ñÀû : ¾ÏÀÇ ÀüÀÌ´Â ¾ÏÀÇ ±ÙÄ¡ ÀýÁ¦µîÀÇ Ä¡·áÈÄ Áß¿äÇÑ ¹®Á¦Á¡ ÁßÀÇ ÇϳªÀ̸ç ÀüÀÌÀÇ Áõ¸íÀº ÀÌ¹Ì °íÇü¾ÏÀÌ ¹ß°ßµÇ¾úÀ» ¶§ ÀÌ·ç¾îÁö´Â °Ë»çÀÌ´Ù. ÀÓ»óÀûÀ¸·Î Ç¥ÇöµÇÁö ¾Ê´Â ¾Ï¼¼Æ÷ÀÇ ÆÄÁ¾Àº ¸é¿ª¼¼Æ÷ÇÐÀû °Ë»ç³ª PCR °°Àº ºÐÀÚ»ý¹°ÇÐÀû ¹æ¹ý µîÀ» ÀÌ¿ëÇÏ¿© ¹ß°ßÇÒ ¼ö ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â 22¸íÀÇ À§¾ÏȯÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¿© ¸»ÃÊÇ÷¾×¿¡¼­ CK-20 RT-PCRÀ» ÀÌ¿ëÇØ ¸»ÃÊ Ç÷¾× ³»¿¡¼­ ¹Ì¼¼ ÀüÀ̾ÏÀ» ã¾Æ³¾ ¼ö ÀÖ´ÂÁö ¾Ë¾Æº¸°í ¶ÇÇÑ ¿¹ÈÄ¿Í °ü·Ã¼ºÀÌ ÀÖ´ÂÁö¸¦ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

¹æ¹ý : Á¶Á÷ÇÐÀû À§¾ÏÀ¸·Î Áø´ÜµÈ ȯÀÚ Áß Ä¡·á¸¦ ¹ÞÁö ¾ÊÀº ȯÀÚ 22¸í°ú Á¤»ó ´ëÁ¶±ºÀ¸·Î ¾ÏÀÇ º´·ÂÀÌ ¾ø´Â °Ç°­ÇÑ µ¿·á ÀÇ»ç 10¸íÀÇ Ç÷¾× 10 mL¸¦ äÃëÇÏ¿© ÇìÆĸ°À¸·Î ó¸®ÇÏ¿´´Ù. ¹Ðµµ °æ»ç¿¡ µû¶ó À¯ÇÙ¼¼Æ÷µéÀ» µû·Î ºÐ¸®ÇÏ¿´°í ÀÌ À¯ÇÙ ¼¼Æ÷µé·ÎºÎÅÍ ¼ø¼ö RNA¸¦ ºÐ¸®ÇÏ¿© CK 20 ƯÀÌ primers¸¦ ÀÌ¿ëÇÏ¿© ¿ªÀü»ç ÁßÇÕÈ¿¼Ò ¿¬¼â¹ÝÀÀ¿¡ »ç¿ëÇÏ¿´´Ù.

°á°ú : 22¸íÀÇ À§¾Ï ȯÀÚ Áß ¸»ÃÊ Ç÷¾× RT-PCR °á°ú CK 20ÀÌ ¾ç¼ºÀ¸·Î ³ªÅ¸³­ °æ¿ì´Â 3¸í(13.6%)À̾ú°í 10¸íÀÇ Á¤»ó ´ëÁ¶±º¿¡¼­´Â ¸ðµÎ À½¼ºÀ̾ú´Ù.

°á·Ð : 22¸íÀÇ À§¾Ï ȯÀÚÀÇ ¸»ÃÊ Ç÷¾×À» ´ë»óÀ¸·Î CK 20¿¡´ëÇÑ ¿ªÀü»ç ÁßÇÕÈ¿¼Ò ¿¬¼â¹ÝÀÀÀ» ½Ç½ÃÇÏ¿© Á¶»çÇÑ °á°ú 3¸í (13.6%)¿¡¼­ ¾ç¼º¹ÝÀÀÀ» º¸¿© ¹Ì¼¼ ÀÜ·ù¾ÏÀ» ã¾Æ ³¾¼ö ÀÖ´Â ÁÁÀº ¹æ¹ýÀ¸·Î »ý°¢µÇ¾ú´Ù. ±×·¯³ª º» ¿¬±¸¿¡¼­´Â º´±â¿¡ µû¸¥ ¾ç¼º·üÀÇ Â÷À̳ª »ýÁ¸·ü¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ¶Ñ·ÇÇÑ °á°ú´Â ¹ß°ßÇÏÁö ¸øÇÏ¿´´Ù. µû¶ó¼­ Á» ´õ ¸¹Àº ¼öÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ¿¬±¸ÇÒ ÇÊ¿ä°¡ ÀÖÀ» °ÍÀ¸·Î »ý°¢µÈ´Ù.

Background : The development of metastasis in cancer is one of the main problems after primary tumor resection. The identification of metastases is only possible in the follow-up investigation when there is already a solid tumor mass. Subclinical tumor cell dissemination can be detected by immunocytological staining of cells or by other molecular biological methods, like PCR. We investigated 22 peripheral blood isolates from gastric cancer patients with a cytokeratin (CK) 20 specific nested reverse transcriptase PCR (RT-PCR) for the detection of disseminated tumor cells at the time of diagnosis.

Methods : Fresh heparinized peripheral bloods (about 10 mL) were obtained from 22 gastric cancer patients and 10 healthy doctors as controls. Nucleated cells were isolated by a density gradient method. RNA was isolated and then subjected to RT-PCR with CK 20 specific primers.

Results : In gastric cancer, 3 of 22 (13.6%) peripheral blood isolates yielded a CK 20 mRNA positive result in a stage undependent manner.

Conclusion : We detected disseminated tumor cells in the peripheral blood isolated using CK 20 specific nested RT-PCR method. Studies on a larger scale are needed for further investigation on the relationship between positive rates of CK 20 mRNA and survival rates of stomach cancer, according to cancer stages.

Å°¿öµå

Stomach neoplasms;Keratin;Reverse transcriptase polymerase chain reaction;

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