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Proteomics Analysis for Helicobacter pylori-infected Gastric Mucosa

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°­È£¼®(Kang Ho-Suk) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ ÇѸ²´ëÇб³¼º½Éº´¿ø ³»°úÇб³½Ç
È«¼º³ë(Hong Sung-Noh) - ¼º±Õ°ü´ëÇб³ Àǰú´ëÇÐ »ï¼º¼­¿ïº´¿ø ³»°úÇб³½Ç
ÀÌÁØÇà(Lee Jun-Haeng) - ¼º±Õ°ü´ëÇб³ Àǰú´ëÇÐ »ï¼º¼­¿ïº´¿ø ³»°úÇб³½Ç
±èÀçÁØ(Kim Jae-Jun) - ¼º±Õ°ü´ëÇб³ Àǰú´ëÇÐ »ï¼º¼­¿ïº´¿ø ³»°úÇб³½Ç
¹ÚÇý¸²(Park Hye-Rim) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ ÇѸ²´ëÇб³¼º½Éº´¿ø º´¸®Çб³½Ç
±Ç¹ÌÁ¤(Kwon Mi-Jung) - ÇѸ²´ëÇб³ Àǰú´ëÇÐ ÇѸ²´ëÇб³¼º½Éº´¿ø º´¸®Çб³½Ç

Abstract

¸ñ Àû: H. pylori´Â À§Á¡¸· ¼Õ»ó°ú À§¾Ï ¹ß¾Ï °úÁ¤À» ½ÃÀÛÇÏ´Â ¿äÀÎÀ¸·Î »ý°¢µÈ´Ù. À̹ø ¿¬±¸´Â H. pylori °¨¿° À§Á¡¸·ÀÇ ´Ü¹éü ºÐ¼®(proteomics)À» ÅëÇØ H. pylori °¨¿°°ú ¿¬°üµÇ¾î ¹ßÇö¿¡ Â÷À̸¦ º¸ÀÌ´Â ´Ü¹éÁúÀ» È®ÀÎÇϰíÀÚ ÇÏ¿´´Ù.

´ë»ó ¹× ¹æ¹ý: »óºÎÀ§Àå°ü°Ë»ç¸¦ ÀÌ¿ëÇÏ¿© H. pylori ¾ç¼º À§Á¡¸· Á¶Á÷ 15¿¹¿Í H. pylori À½¼º À§Á¡¸· Á¶Á÷ 15¿¹¸¦ ¾ò¾ú´Ù.
ÀÌ¿¡ ´ëÇØ ´Ü¹éÁú ºÐ¸®, 2Â÷¿ø Àü±â¿µµ¿, ±×¸®°í ´Ü¹éÁú Áú·® ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù.

°á °ú: H. pylori ¾ç¼º À§Á¡¸·¿¡¼­ Keratin 1, ezrin, ATP synthase subunit alpha mitochondrial isoform c, Keratin
type I cytoskeletal 19 µîÀÇ ´Ü¹éÁúÀÌ °ú¹ßÇöµÊÀ» È®ÀÎÇÏ¿´°í, ¹Ý¸é 71 kd heat shock cognate protein, ATP synthase
subunit alpha mitochondrial precursor, annexin IV µîÀÌ Àú¹ßÇöµÊÀ» È®ÀÎÇÏ¿´´Ù. ÀÌµé ´Ü¹éÁú Áß Western blot°ú ¸é¿ª
È­Çп°»öÀ» ÅëÇØ ezrinÀÇ ¹ßÇöÀÌ H. pylori ¾ç¼º À§Á¡¸·¿¡¼­ Áõ°¡ÇÔÀ» ´Ù½Ã Çѹø È®ÀÎÇÏ¿´´Ù.

°á ·Ð: À̹ø ¿¬±¸´Â ezrin ´Ü¹éÁúÀÌ ÇâÈÄ H. pylori ¿¬°ü À§¿°ÀÇ ºÐÀÚÇ¥ÁöÀÎÀÚ µîÀ¸·Î »ç¿ëµÉ ¼ö ÀÖÀ½À» Á¦½ÃÇÏ¿´´Ù.
Background/Aims: Helicobacter pylori infection is linked to the development of gastric cancer. H. pylori-associated gastric in-flammation is considered to be the first important step in the histogenesis of such neoplasia. However, studies that compare proteome of gastric mucosa infected with or without H. pylori are lacking.

Methods: We employed proteomics analysis on the endoscopic biopsy specimens of gastric mucosa obtained from two groups (30 cases): healthy subjects without H. pylori infection (15 cases), and gastritis patients with H. pylori infection (15 cases). The pooled proteins obtained from gastric mucosa infected with or without H. pylori were separated by two-dimensional gel electrophoresis and analyzed by a computer-aided program. The altered protein expressions were then identified by mass spectrometry and validated by Western blotting and immunohistochemistry.

Results: On mass spectrometry using MALDI TOF¢â Analyzer, the up-regulation of Keratin 1, ezrin, adenosine triphosphate (ATP) synthase subunit alpha mitochondrial isoform c, Keratin type I cytoskeletal 19, and Keratin type I cytoskeletal 9 were identified; in contrast, 71 kd heat shock cognate protein, ATP synthase subunit alpha mitochondrial precursor, and annexin IV were down-regulated. Among them, membrane cytoskeleton linker ezrin was validated using Western blot and immuno-histochemistry.

Conclusions: Expression of ezrin was significantly different between the gastric mucosa with and without H. pylori infection. Therefore, ezrin could be considered a promising potential molecular marker for detecting H. pylori infection in gastric mucosa.

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Ç︮ÄÚ¹ÚÅÍ ÆÄÀϷθ®, ´Ü¹éü ºÐ¼®, ÀÌÁ, À§¾Ï, À§¿°
Helicobacter pylori, Proteomics, Ezrin, Stomach neoplasms, Gastritis
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MEDLINE ÇмúÁøÈïÀç´Ü(KCI) KoreaMed ´ëÇÑÀÇÇÐȸ ȸ¿ø 
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