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CaSki ¼¼Æ÷ÁÖ¿¡¼­ ¼ºÀå »óÅ¿¡ µû¸¥ X-¼±¿¡ ÀÇÇÑ c-junÀÇ ¹ßÇö Expression of c-jun by X-ray According to Cell Growth State in CaSki Cell Line

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À强¼ø, ¹Ú¿ìÀ±,
¼Ò¼Ó »ó¼¼Á¤º¸
À强¼ø (  ) 
Chungbuk National University

¹Ú¿ìÀ± (  ) 
Chungbuk National University

Abstract

¸ñ Àû : ¼¼Æ÷ÀÇ ¼ºÀå »óÅ Áï, Áö¼öÀû Áõ½Ä±â¿Í ÆòÇü±â ¼¼Æ÷¿¡¼­ ¹æ»ç¼±¿¡ ÀÇÇÑ c-junÀÇ
¹ßÇö ¾ç»óÀÇ Â÷À̸¦ ÆľÇÇÏ°í, ¹æ»ç¼±Á¶»ç ÈÄ ¼¼Æ÷Áֱ⠺ÐÆ÷¸¦ ºÐ¼®ÇÏ¿© À̵éÀÇ »ó°ü °ü°è
¸¦ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.
´ë»ó ¹× ¹æ¹ý : »ç¶÷ ÀڱðæºÎ¾Ï ¼¼Æ÷ÁÖÀÎ CaSki¸¦ ´ë»óÀ¸·Î ³¯Â¥ °æ°ú¿¡ µû¸¥ ¼¼Æ÷¼ºÀå
°î¼±À» ÀÛ¼ºÇÏ¿© Áö¼öÀû Áõ½Ä±â(Á¦ 4ÀÏ)¿Í ÆòÇü±â(Á¦ 9ÀÏ) ¼¼Æ÷¸¦ Á¤ÇÏ¿´´Ù. ¹æ»ç¼±Á¶»ç´Â 6
MY ¼±Çü°¡¼Ó±â¸¦ ÀÌ¿ëÇØ 2 §íÀÇ ¼±·®À» Á¶»çÇÏ¿´°í, À̶§ ¼±·®·üÀº 3 §í/min À̾ú´Ù. Áö¼ö
Àû Áõ½Ä±â¿Í ÆòÇü±â ¼¼Æ÷ °¢°¢¿¡ ¹æ»ç¼±Á¶»ç ÈÄ ½Ã°£ °æ°ú¿¡ µû¶ó total RNA¸¦ ÃßÃâÇÏ¿©
northern blot analysis¸¦ ½ÃÇàÇØ c-junÀÇ ¹ßÇö ¾ç»óÀ» °üÂûÇÏ¿´´Ù. ¶Ç ¹æ»ç¼±Á¶»ç ÈÄ ½Ã°£
°æ°ú¿¡ µû¶ó ¼¼Æ÷¸¦ ¾ò¾î À¯¼¼Æ÷°èÃø¹ýÀ» ÀÌ¿ëÇØ ¼¼Æ÷Áֱ⠺ÐÆ÷¸¦ ºÐ¼®ÇÏ¿´´Ù.
°á °ú : ¹æ»ç¼±Á¶»ç 1 ½Ã°£ ÈÄ¿¡ Áö¼öÀû Áõ½Ä±â¿Í ÆòÇü±â ¼¼Æ÷ ¸ðµÎ¿¡¼­ ÃÖ´ëÀÇ ¹ßÇöÀÌ
°üÂûµÇ¾ú´Ù. ±×·¯³ª ÀÌÈÄ 6½Ã°£±îÁö Áö¼öÀû Áõ½Ä±â ¼¼Æ÷¿¡¼­´Â Áö¼ÓÀûÀ¸·Î ¹ßÇöÀÌ Áõ°¡ÇÑ
¹Ý¸é, ÆòÇü±â¿¡¼­´Â Á¡Â÷ ¹ßÇöÀÌ °¨¼ÒµÇ´Â ¾ç»óÀ» º¸¿´´Ù. ¹æ»ç¼±¿¡ ÀÇÇÑ ¼¼Æ÷ÁÖ±âÀÇ º¯È­´Â
Áö¼öÀû Áõ½Ä±â¿¡¼­ ½Ã°£ °æ°ú¿¡ µû¶ó G0-G1¿¡¼­ 5, G2-M ±â·ÎÀÇ À̵¿ÀÌ ´õ È°¹ßÈ÷ ÀϾî
³µ´Ù.
°á ·Ð : c-junÀº ¹æ»ç¼±Á¶»ç ÈÄ ¼ºÀå »óÅ¿¡ µû¸¥ ¼¼Æ÷ Áõ½ÄÀÇ Á¶Àý°ú °ü·Ã ÀÖÀ» °ÍÀÌ´Ù.

Purpose : The expression pattern of c-jun by ionizing radiation according to cell
growth state(exponential growth phase vs. stationary phase) and its relationship with
cell cycle redistribution were investigated.
Materials and Methods : The exponential growth phase (day 4) and stationary phase
(day 9) cells were determined from cell growth curve according to the elapse of days In
CaSki. The cells were irradiated using 6 MV X-ray with a dose of 2 §í at a fixed dose
rate of 3 §í/min. Northern blot analysis was performed with total cellular RNA and cell
cycle distribution was analyzed using flow cytometry according to time-course after
irradiation.
Results : The maximum expression of c-jun occurred 1 hour after irradiation in both
exponential growth and stationary phase cells. After then c-jun expression was elevated
unto 6 hours in exponential growth phase cells, but the level decreased in stationary
phase cells. Movements of cells from G0-G1 to 5, G2-M phase after irradiation were
higher in exponential growth phase than stationary phase.
Conclusion : c-jun may be involved in the regulation of cellular proliferation according
to the growth states after irradiation.

Å°¿öµå

c-jun; ¼¼Æ÷ ¼ºÀå »óÅÂ; CaSki; ¼¼Æ÷Áֱ⠺ÐÆ÷; c-jun; Cell growth state; CaSki; Cell cycle distribution;

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