Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

K562 ¼¼Æ÷ÁÖ¿¡¼­ Genistein¿¡ ÀÇÇØ ¾ïÁ¦µÇ´Â Radiation-induced ApoptosisÀÇ Á¶Àý À¯ÀüÀÚ Smad6 Gene and Suppression of Radiation-Induced Apoptosis by Genistein in K562 Cells

´ëÇѹæ»ç¼±Á¾¾çÇÐȸÁö 2001³â 19±Ç 3È£ p.245 ~ 251
¼Ò¼Ó »ó¼¼Á¤º¸
Á¤¼öÁø/Soo Jin Jeong Áø¿µÈñ/À¯¿©Áø/µµÃ¢È£/Á¤¹ÎÈ£/Çã±â¿µ/¹èÇý¶õ/¾ç±¤¸ð/¹®Ã¢¿ì/¿À½Å±Ù/Çã¿øÁÖ/ÀÌÇü½Ä/Young Hee Jin/Yeo Jin Yoo/Chang Ho Do/Min Ho Jeong/Gi Yeong Huh/Hye Ran Bae/Kwang Mo Yang/Chang Woo Moon/Sin Geun Oh/Won Joo Hur/Hyung Sik Lee

Abstract

¸ñÀû: K562 ¼¼Æ÷¸¦ ´ë»óÀ¸·Î PTK inhibitor (herbimycinA¿Í genistein)¿¡ ÀÇÇÑ ¹æ»ç¼± À¯µµ apoptosisÀÇ º¯È­¿¡ µû¸¥ °ü·Ã À¯ÀüÀÚ¸¦ Ž»öÇÏ°íÀÚ ÇÏ¿´´Ù. ´ë»ó ¹× ¹æ¹ý: K562 ¼¼Æ÷´Â 2¡¿105 cells/§¢ÀÇ ºñÀ²·Î ÁغñÇÏ¿© ´ë¼öÁõ½Ä±â·Î
¼ºÀåÇÑ
¼¼Æ÷¸¦ °¢°¢ÀÇ ½ÇÇèÁ¶°Ç¿¡ µû¶ó ó¸®ÇÏ¿© »ç¿ëÇÏ¿´´Ù. ¹æ»ç¼± Á¶»ç´Â 6-MV X-Ray 10 Gy (Clinac 1800C, Varian, USA)¸¦ 200¡­300 cGy/minÀÇ ¼±·®À²·Î »ó¿Â¿¡¼­ ÀÏÁ¤ÇÏ°Ô Á¶»çÇÏ¿´´Ù. Herbimycin A (HMA, Calbiochem, UK)¿Í genistein (Calbiochem, UK)Àº
dimethylsulfoxide
(DMSO, Sigma, UK)¿¡ ³ì¿©¼­ °¢°¢ 1 mM°ú 10 mMÀÇ ³óÃà¿ë¾×À¸·Î Á¶Á¦ÇÑ °¢°¢ 250 nM°ú 25 ¥ìMÀÇ ÃÖÁ¾³óµµ·Î ó¸®ÇÏ¿´´Ù. ³»¼º º¯È­ÀÇ Á¶Àý¿¡ °ü¿©ÇÏ´Â À¯ÀüÀÚ¸¦ ã°íÀÚ PCR-select cDNA subtractive hybridizationÀ» ½Ç½ÃÇÏ¿© 128°³ÀÇ Â÷º° ¹ßÇöµÇ´Â clonesÀ»
Àç¼±º°ÇÏ¿´´Ù. DNA sequencingÀ» ÅëÇÏ¿© ¿°±â¼­¿­À» ºÐ¼®ÇÏ¿´À¸¸ç, GenBank database¸¦ ÀÌ¿ëÇÏ¿© ÀÌ¹Ì ¹àÇôÁø À¯ÀüÀÚµé°úÀÇ »óµ¿¼ºÀ» ºñ±³ÇÏ¿´´Ù. »óµ¿¼ºÀ» °®´Â cloneÀ» È®ÀÎÇÏ¿© À̸¦ probe·Î »ç¿ëÇÏ¿© ¹æ»ç¼± ´Üµ¶Á¶»çÇÑ ½ÇÇ豺°ú ¹æ»ç¼±°ú HMA ¶Ç´Â genisteinÀ»
µ¿½Ã
ó¸®ÇÑ ½ÇÇ豺µé °£ÀÇ mRNA ¹ßÇöÀÇ Â÷À̸¦ Northern hybridizationÀ» ÅëÇÏ¿© È®ÀÎÇÏ¿´´Ù. °á°ú: homo sapiens Smad6 À¯ÀüÀÚ¿Í 95%ÀÇ »óµ¿¼ºÀ» °®´Â cloneÀ» È®ÀÎÇÏ¿´´Ù. À̸¦ probe·Î »ç¿ëÇÏ¿© ¹æ»ç¼± ´Üµ¶ Á¶»çÇÑ ½ÇÇ豺°ú ¹æ»ç¼±°ú HMA ¶Ç´Â genisteinÀ»
µ¿½Ã
ó¸®ÇÑ ½ÇÇ豺µé°£ÀÇ mRNA ¹ßÇöÀÇ Â÷À̸¦ ºñ±³ ºÐ¼®ÇÑ °á°ú, ¹æ»ç¼±°ú genisteinÀ» µ¿½Ã ó¸®ÇÑ ½ÇÇ豺ÀÇ mRNA ¹ßÇöÀÌ ¹æ»ç¼± ´Üµ¶ Á¶»çÇÑ ½ÇÇ豺°ú ¹æ»ç¼±°ú HMA¸¦ ó¸®ÇÑ ½ÇÇ豺µé¿¡ ºñÇÏ¿© ÇöÀúÈ÷ ³ô¾Ò´Ù. °á·Ð: Smad6¿Í ¹æ»ç¼±¿¡ ÀÇÇØ À¯µµµÇ´Â
apoptosisÀÇ
¾ïÁ¦¿¡ °üÇÑ ¿¬°ü¼ºÀ» º¸°íÇÑ ¹®ÇåÀº ¾øÀ¸³ª, Smad6°¡ ÀϺμ¼Æ÷¿¡¼­ apoptosis¸¦ ¾ïÁ¦ÇÑ´Ù´Â º¸°íµé°ú, º» ¿¬±¸¿¡¼­ °üÂûÇÑ genistein¿¡ ÀÇÇÑ ¹æ»ç¼±¿¡ ÀÇÇØ À¯µµµÇ´Â apoptosisÀÇ ¾ïÁ¦¿¡¼­ ±× ¹ßÇöÀÌ µÎµå·¯Áö°Ô Áõ°¡ÇÑ Á¡ µîÀ» ¹Ì·ç¾î º¸¾Æ ¹æ»ç¼±¿¡ ÀÇÇÏ¿©
À¯µµµÈ
apoptosisÀÇ ¾ïÁ¦ ¹× ¹æ»ç¼± ³»¼ºÀÇ Á¶Àý¿¡µµ °ü¿©ÇÒ °ÍÀ¸·Î »ý°¢µÈ´Ù.

Purpose: The genes involved on the suppression of radiation-induced apoptosis by genistein in K562 leukemia cell line was investigated. Materials and methods: K562 cells in exponential growth phase were irradiated with a linear
accelerator
at room temperature. For X-ray irradiation and drug treatment, cultures were prepared at 2¡¿105 cells/§¢. The cells were irradiated with 10 Gy (Clinac 1800C, Varian, USA). Stock solutions of herbimycin A (HMA, Calbiochem, UK) and
genistein
(Calbiochem, UK) were prepared in dimethylsulfoxide (DMSO, Sigma, UK). After incubation at 37¡É for 24 h, PCR-select cDNA subtractive hybridization, dot hybridization, DNA sequencing and Northern hybridization were examined. Results: Smad6
gene
was identified from the differentially expressed genes in K562 cells incubated with genistein which had been selected by PCR-select cDNA subtractive hybridization. The mRNA expression of Smad6 in K562 cells incubated with genistein was also
higher
than
control group by Northern hybridization analysis. Conclusion: We have shown that Smad6 involved on the suppression of radiation-induced apoptosis by genistein in K562 leukemia cell line. It is plausible that the relationship between Smad6
and the
suppression of radiation-induced apoptosis is essential for treatment development based on molecular targeting designed to modify radiation-induced apoptosis.

Å°¿öµå

¹æ»ç¼±; ¾ÆÆ÷Åä½Ã½º; K562; PTK ¾ïÁ¦¾à¹°; Smad6; PTK inhibitors; Oncogene expression; Radiation-induced apoptosis; Smad6;

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

   

µîÀçÀú³Î Á¤º¸

KCI
KoreaMed
KAMS