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¼Ò¾Æ Helicobacter pylori °¨¿°¿¡¼­ ±ÕÀÇ À¯ÀüÇü, À§ »óÇǼ¼Æ÷ÀÇ Áõ½Ä°ú ¼¼Æ÷»ç The Genotypes of Helicobacter pylori, Gastric Epithelial Cell Proliferation and Apoptosis in Children

Á¤Áö¾Æ, À̹̾Ö, ¼­Á¤¿Ï,
¼Ò¼Ó »ó¼¼Á¤º¸
Á¤Áö¾Æ ( Jung Ji-Ah ) 
ÇѸ²´ëÇб³ ÀÇ°ú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç

À̹̾֠( Lee Mi-Ae ) 
ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Áø´Ü°Ë»çÀÇÇб³½Ç
¼­Á¤¿Ï ( Seo Jung-Wan ) 
ÀÌÈ­¿©ÀÚ´ëÇб³ ÀÇ°ú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç

Abstract

¸ñ Àû: Helicobacter pylori (H. pylori)¿¡ ÀÇÇÑ Áúº´ ¹ß»ýÀÇ º´µ¶ ÀÎÀÚ·Î cagA, picB ¹× iceA µîÀÇ À¯ÀüÇüÀÌ ¿¬±¸µÇ°í ÀÖÀ¸¸ç, ÃÖ±Ù¿¡´Â À§ »óÇǼ¼Æ÷ÀÇ Áõ½Ä(proliferation)°ú ¼¼Æ÷»ç(apoptosis)ÀÇ ºÒ±ÕÇüÀÌ Áß¿ä½ÃµÇ°í ÀÖ´Ù. ÀÌ¿¡ H. pylori °¨¿° ¼Ò¾Æ¿¡¼­ À§ »óÇǼ¼Æ÷Áõ½Ä°ú ¼¼Æ÷»ç ¹× cagA, picB ¹× iceA À¯ÀüÇüÀÇ °ü·Ã¼ºÀ» ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

¹æ ¹ý: 1999³â 8¿ùºÎÅÍ 2001³â 6¿ù±îÁö ÀÌÈ­¿©ÀÚ´ëÇб³ ¸ñµ¿º´¿ø ¼Ò¾Æ°ú¿¡¼­ ¼ÒÈ­±â Áõ»óÀ¸·Î ³»½Ã°æÀ» ½ÃÇàÇÏ¿© H. pylori °¨¿°À¸·Î Áø´ÜµÈ 20¿¹¿Í °¨¿° À½¼º 20¿¹¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù. H.pylori °¨¿° ¾ç¼ºÀº Á¶Á÷ÇÐÀûÀ¸·Î H. pylori ±ÕÀÌ °üÂûµÇ°í, CLO °Ë»ç¿Í ureC PCRÀÌ ÀüºÎ ¾ç¼ºÀÎ °æ¿ì·Î ÇÏ¿´´Ù. À§»ý°Ë Á¶Á÷¿¡¼­ °³Á¤µÈ ½Ãµå´Ï ü°è¸¦ ÀÌ¿ëÇÏ¿© Á¶Á÷ ¼Ò°ßÀ» ºÐ¼®ÇÏ°í, proliferating cell nuclear antigen (PCNA) ¹ßÇöÀ¸·Î À§ »óÇǼ¼Æ÷ Áõ½ÄÀÇ Á¤µµ¸¦, in situ terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) ¹æ¹ýÀ¸·Î ¼¼Æ÷»çÀÇ Á¤µµ¸¦ Á¶»çÇÏ¿´´Ù. cagA, picB ¹× iceA À¯ÀüÀÚ¿¡ ´ëÇØ ÁßÇÕÈ¿¼Ò¿¬¼â¹ÝÀÀÀ» ½ÃÇàÇÏ¿´´Ù.

°á °ú: 1) ¼¼Æ÷ Áõ½Ä ÁöÇ¥´Â H. pylori °¨¿° ¾ç¼º¿¡¼­ 77.4+/-13.12·Î, À½¼º 52.3+/-12.20¿¡ ºñÇÏ¿© À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù(p=0.000). ¼¼Æ÷ Áõ½Ä ÁöÇ¥´Â H. pylori ¹Ðµµ°¡ Áõ°¡ÇÒ¼ö·Ï(r=0.624, p=0.000, ´ÙÇÙÇü Áß¼º±¸ÀÇ È°µ¿¼ºÀÌ Áõ°¡ÇÒ¼ö·Ï(r=0.460, p=0.005), ¸¸¼º ¿°ÁõÀÌ Áõ°¡ÇÒ¼ö·Ï(r=0.433, p=0.009) Áõ°¡ÇÏ¿´´Ù. 2) ¼¼Æ÷»ç ÁöÇ¥´Â H. pylori °¨¿° ¾ç¼º¿¡¼­ 0.70+/-0.411, À½¼º¿¡¼­ 0.14+/-0.201·Î °¨¿° ¾ç¼º¿¡¼­ À½¼ºº¸´Ù À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù(p=0.000). ¼¼Æ÷»ç ÁöÇ¥´Â H. pylori ¹Ðµµ°¡ Áõ°¡ÇÒ¼ö·Ï(r=0.691, p=0.000), ´ÙÇÙÇü Áß¼º±¸ÀÇ È°µ¿¼ºÀÌ Áõ°¡ÇÒ¼ö·Ï(r=0.585, p=0.000), ¸¸¼º ¿°ÁõÀÌ Áõ°¡ÇÒ¼ö·Ï(r=0.535, p=0.001) Áõ°¡ÇÏ¿´´Ù. 3) ¼¼Æ÷ Áõ½Ä ÁöÇ¥°¡ Áõ°¡ÇÒ¼ö·Ï ¼¼Æ÷»ç ÁöÇ¥´Â À¯ÀÇÇÏ°Ô Áõ°¡ÇÏ¿´´Ù(r=0.527, p=0.001). 4) H. pylori °¨¿° ¾ç¼º¿¡¼­ À¯ÀüÇüÀÇ ¾ç¼º·üÀº cagA 90%, picB 75%, iceA1 60% ¹× iceA2 15%¿´À¸¸ç, cagA, picB, ¹× iceA À¯ÀüÇü¿¡ µû¸¥ ¼¼Æ÷ Áõ½Ä ÁöÇ¥, ¼¼Æ÷»ç ÁöÇ¥, ³»½Ã°æ ¼Ò°ß ¹× Á¶Á÷ ¼Ò°ß¿¡´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù.

°á ·Ð: H. pylori °¨¿° ¼Ò¾Æ¿¡¼­ À§ »óÇǼ¼Æ÷ Áõ½Ä ÁöÇ¥¿Í ¼¼Æ÷»ç ÁöÇ¥°¡ ±ÕÇüÀ» ÀÌ·ç¸é¼­ Áõ°¡ÇÏ¿´À¸¸ç, cagA, pic B ¹× iceA À¯ÀüÇü¿¡ µû¸¥ À¯ÀÇÇÑ Â÷ÀÌ´Â ¾ø¾ú´Ù. ÀÌ´Â À§ »óÇǼ¼Æ÷ Áõ½Ä°ú ¼¼Æ÷»ç°¡ H. pyloriÀÇ º´Àο¡ Áß¿äÇÔÀ» ½Ã»çÇϸç, ¾ÕÀ¸·Î ¼¼Æ÷ Áõ½Ä°ú ¼¼Æ÷»çÀÇ ±âÀü°ú À¯¹ß ¿äÀÎ, ¿©·¯ À¯ÀüÇü°úÀÇ °ü°è, ¼ºÀΰúÀÇ ºñ±³ ¿¬±¸ µîÀÌ ÇÊ¿äÇϸ®¶ó »ý°¢µÈ´Ù.

PURPOSE: To investigate the relation of the gastric epithelial cell proliferation, apoptosis and genotypes of H. pylori in children.

METHODS: Histologic grading by updated Sydney system, PCNA immunostaining, TUNEL method and the genotypes (cagA, picB and iceA) by PCR were performed in H. pylori positive (N=20) and negative (N=20) gastric biopsy specimens.

RESULTS: PCNA index was significantly different between H. pylori positive children (77.4+/-13.12) and H. pylori negative children (52.3+/-12.20)(p=0.000). There were positive correlations between PCNA index and H. pylori density (r=0.624, p=0.000), polymorphonuclear neutrophil activity (r=0.460, p=0.005) and chronic inflammation (r=0.433, p=0.009). Apoptosis index of H. pylori positive children (0.70+/-0.411) was significantly higher than of H. pylori negative children (0.14+/-0.201) (p=0.000). Positive correlations between apoptosis index and H. pylori density (r=0.691, p=0.000), polymorphonuclear neutrophil activity (r=0.585, p=0.000) and chronic inflammation (r=0.535, p=0.001) were noted. As PCNA index increased, apoptosis index significantly increased (r=0.527, p=0.001). The positive rates of genotypes were cagA 90%, picB 75%, iceA1 60% and iceA2 15%, respectively. There were no significant correlations between the status of the genotypes and PCNA index, apoptosis index, the endoscopic findings and the histologic findings.

CONCLUSION: PCNA index and apoptosis index in H. pylori positive children were higher than in H. pylori negative children but were not related to H. pylori genotypes. This study suggested that correlatively increased gastric epithelial cell proliferation and apoptosis are important to pathogenesis of H. pylori infection in children.

Å°¿öµå

Helicobacter pylori;Gastric epithelial cell;Proliferation;Apoptosis;cagA;picB;iceA

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