Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

Àüü DNA Àú¸ÞÆ¿È­¿Í À§¾Ï ¹ß»ý°úÀÇ °ü°è Relationship between Global DNA Hypomethylation and Gastric Carcinogenesis

´ëÇѼÒÈ­±âÇÐȸÁö 2000³â 36±Ç 6È£ p.736 ~ 744
Á¶È²·¡, À念¿î, ³ª¿µÈ£, ±èÈ¿Á¾, À̵¿±Ù, ±è°æÁø, µ¿¼®È£, ±èº´È£, ÀÌÁ¤ÀÏ, À帰,
¼Ò¼Ó »ó¼¼Á¤º¸
Á¶È²·¡ ( Cho Hwoang-Lae ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç

À念¿î ( Chang Young-Woon ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç
³ª¿µÈ£ ( Rha Yeong-Ho ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç
±èÈ¿Á¾ ( Kim Hyo-Jong ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç
À̵¿±Ù ( Lee Dong-Keun ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç
±è°æÁø ( Kim Kyung-Jin ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç
µ¿¼®È£ ( Dong Seok-Ho ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç
±èº´È£ ( Kim Byung-Ho ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç
ÀÌÁ¤ÀÏ ( Lee Joung-Il ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç
À帰 ( Chang Rin ) 
°æÈñ´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç

Abstract

¸ñÀû :À§¾ÏÀº DNA Àú¸ÞÆ¿È­, ¾Ï¾ïÁ¦À¯ÀüÀÚÀÇ ¼Ò½Ç °ú ¾ÏÀ¯ÀüÀÚÀÇ µ¹¿¬º¯ÀÌ µî ÀÏ·ÃÀÇ ¿¬¼ÓÀûÀÎ º¯È­µéÀ» °ÅÃÄ ¹ß»ýÇÑ´Ù. ƯÈ÷ DNA ¸ÞÆ¿È­ÀÇ º¯È­´Â »ç¶÷ ¹× µ¿¹°ÀÇ ´Ù¾çÇÑ ¿©·¯ ¾ÏÀÇ ¹ß»ý¿¡ °ü¿©ÇÑ´Ù°í ÇÑ´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº À§¾Ï ¹ß»ý¿¡ À־ Àüü À¯ÀüÀÚ DNA ÀÇ Àú¸ÞÆ¿È­°¡ °ü¿©Çϴ°¡ ¿©ºÎ¸¦ ¾Ë¾Æº¸°í, Àú¸ÞÆ¿È­¿Í À§¾ÏÀÇ º´±â »çÀÌ¿¡ ¾î¶² ¿¬°üÀÌ ÀÖ´ÂÁö¸¦ ¾Ë¾Æº¸´Â µ¥ ÀÖ´Ù.

´ë»ó ¹× ¹æ¹ý :Á¤»ó ´ëÁ¶±º°ú ¹ßÀû¼º À§¿°, ¸¸¼º À§Ã༺ À§¿° ¹× À§¾Ï ȯÀÚ¸¦ ´ë»óÀ¸·Î À§³»½Ã°æÀ» ½ÃÇàÇÏ¿© º´º¯¿¡¼­ Á¡¸· Á¶Á÷À» ÃëÇÏ¿´´Ù. Á¶Á÷ÀýÆíÀ» proteinase K ¸¦ ÇÔÀ¯ÇÑ Á¶Á÷ ¼ÒÈ­¿ë¾×À¸·Î ¿ëÇؽÃÄÑ DNA ¸¦ ÃßÃâÇÏ¿´´Ù. DNA ¿¡ (3H)-methyl-S-adenosylmethionine °ú ¸ÞÆ¿È­ È¿¼Ò¸¦ ³Ö¾î ¸ÞÆ¿È­ ¹ÝÀÀÀ» À¯µµÇÏ¿´´Ù. DNA ¿Í 3H-methyl group °úÀÇ ³ôÀº °áÇÕÀº DNA °¡ ³»ºÎÀûÀ¸·Î Àú¸ÞÆ¿È­µÇ¾î ÀÖÀ½À» ¹Ý¿µÇϹǷΠ3H ¿Í °áÇÕµÈ DNA ÀÇ ¹æ»ç´ÉÀ» ÃøÁ¤ÇÏ¿´´Ù.

°á°ú :Àüü DNA Àú¸ÞÆ¿È­°¡ Á¤»ó¿¡¼­ºÎÅÍ ¹ßÀû¼º À§¿°, ¸¸¼º À§Ã༺ À§¿°, ±×¸®°í À§¾ÏÀ¸·Î °¥¼ö·Ï ½ÉÇØÁö´Â °ÍÀ» °üÂû ÇÒ ¼ö ÀÖ¾ú´Ù. ¸¸¼º À§Ã༺ À§¿°°ú À§¾Ï¿¡¼­ÀÇ Àüü DNA Àú¸ÞÆ¿È­´Â ¹ßÀû¼º À§¿°°ú ºñ±³ÇÏ¿´À» ¶§ À¯ÀÇÇÏ°Ô ½ÉÇÏ¿´´Ù. ±×·¯³ª ¸¸¼º À§Ã༺ À§¿°°ú À§¾Ï »çÀÌ¿¡´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ±×¸®°í À§¾ÏÀÇ º´±â ÁøÇàÇÒ¼ö·Ï Àú¸ÞÆ¿È­°¡ ´õ ½ÉÇØÁöÁö´Â ¾Ê¾Ò´Ù. ¶ÇÇÑ Helicobacter pylori °¨¿°ÀÌ ¸ÞÆ¿È­¿¡ ¿µÇâÀ» ÁÖÁö´Â ¾Ê¾Ò´Ù.

°á·Ð :Àüü DNA Àú¸ÞÆ¿È­´Â À§¾Ï ¹ß»ýÀÇ Ãʱ⠴ܰ迡¼­ºÎÅÍ ³ªÅ¸³ª¸ç, ¾Ï¹ß»ý ÈÄÀÇ º´±â¿¡´Â °ü¿©ÇÏÁö ¾Ê´Â °ÍÀ¸·Î »ý°¢ÇÑ´Ù.

Background/Aims: DNA hypomethylation has been observed in some human neoplasms and implicated as an important factor in carcinogenesis. This study was designed to determine whether DNA hypomethylation occurs during the process of gastric carcinogenesis and to evaluate the relationship between the degree of DNA hypomethylation and the stage of cancer.

Methods: A total of 49 subjects were classified histologically into normal controls (n=10), erythematous gastritis group (n=13), chronic atrophic gastritis group (n=13), and gastric cancer group (n=13). The extent of DNA methylation was assessed by incubating DNA from gastric mucosal tissue with (3H)-methyl-S-adenosylmethionine and Sss1 methylase. A higher incorporation between DNA and exogenous (3H)-methyl group reflected a lower degree of intrinsic methylation.

Results: Global DNA hypomethylation was increased according to the severity of disease as follows: normal (13,430 dpm/¥ìg/DNA), erythematous gastritis (28,900 dpm/¥ìg/DNA), chronic atrophic gastritis (67,850 dpm/¥ìg/DNA), gastric cancer (83,490 dpm/¥ìg/DNA) (p<0.0001). Global DNA methylation in chronic atrophic gastritis and gastric cancer was decreased significantly compared with that in erythematous gastritis, respectively (p<0.01, p<0.001). However, no difference in DNA methylation was observed between chronic atrophic gastritis and gastric cancer (p>0.05). DNA hypomethylation did not correlate with cancer stage. Helicobacter pylori infection did not affect the DNA methylation.

Conclusions: Global DNA hypomethylation occurs in the early stage of gastric carcinogenesis. The degree of DNA hypomethylation do not increase with progression of the stage of cancer.

Å°¿öµå

À§¾Ï;DNA Àú¸ÞÆ¿È­
Gastric cancer;DNA hypomethylation

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

 

µîÀçÀú³Î Á¤º¸

MEDLINE
KCI
KoreaMed
KAMS