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A STUDY ON THE RADIOSENSITIVITY AND CHEMOSENSITIVITY OF A-253 CELL LINE IN VITRO

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Abstract

»ç¶÷ Ç¥ÇǾç¾ÏÁ¾ A-253 ¼¼Æ÷ÁÖ¿¡ ´ëÇÑ ¹æ»ç¼± ¹× Ç×¾ÏÁ¦ÀÇ ¼¼Æ÷µ¶¼º¹ÝÀÀÀ» ¾Ë¾Æº¸±â À§
ÇÏ¿© ¹æ»ç¼± ´Üµ¶Á¶»ç±º¿¡´Â 2, 4, 6, 8, l0GyÀÇ ¹æ»ç¼±À» °¢°¢ ´ÜȹÁ¶»çÇÏ¿´À¸¸ç, Ç×¾ÏÁ¦ ´Ü
µ¶Åõ¿©±º¿¡´Â 2§¶/§¢ ³óµµÀÇ bleomycin ¶Ç´Â cisplatinÀ» ´Üµ¶Åõ¿©ÇÏ¿´´Ù. ¶ÇÇÑ ¹æ»ç¼±Á¶»ç¿Í
Ç×¾ÏÁ¦¸¦ º´¿ëÇÑ °æ¿ì¿¡´Â 2, 4, 6, 8, 10GyÀÇ ¹æ»ç¼±À» °¢°¢ ´ÜȸÁ¶»çÇÑ Á÷ÈÄ 2 §¶/§¢ ³óµµ
ÀÇ bleomycin ¶Ç´Â cisplatinÀ» Åõ¿©ÇÏ¿´´Ù. ÀÌµé ½ÇÇ豺¿¡¼­ ¼¼Æ÷»ýÁ¸À²µéÀ» ±¸ÇÏ°í ¼¼Æ÷»ý
Á¸°î¼±µéÀ» ÀÛ¼ºÇÑ ÈÄ ¼¼Æ÷µ¶¼º¹ÝÀÀÀ» Æò°¡ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. A-253¼¼Æ÷ÁÖ¿¡ 2, 4, 6, 8, 10GyÀÇ ¹æ»ç¼±À» °¢°¢ ´ÜȸÁ¶»çÇÑ °æ¿ì ¼¼Æ÷»ýÁ¸°î¼±Àº ¿Ï
¸¸ÇÑ ±â¿ï±â¸¦ ³ªÅ¸³»¾ú´Ù.
2. A-253 ¼¼Æ÷ÁÖ¿¡ bleomycin ¶Ç´Â cisplatinÀ» ´Üµ¶Åõ¿©ÇÑ °æ¿ì ´ëÁ¶±º°úÀÇ ¼¼Æ÷»ýÁ¸À²ÀÇ
Â÷ÀÌ°¡ ÀÎÁ¤µÇ¾ú´Ù. ±×·¯³ª bleomycin°ú ciaplatinÀÇ ¼¼Æ÷µ¶¼ºÈ¿°úÀÇ Â÷ÀÌ´Â ÀÎÁ¤µÇÁö ¾Ê¾Ò
´Ù.
3. A-253 ¼¼Æ÷ÁÖ¿¡ ¹æ»ç¼±À» ´Üµ¶Á¶»çÇÑ °æ¿ì¿Í ¹æ»ç¼±Á¶»ç¿Í 2§¶/§¢ÀÇ bleomycinÅõ¿©¸¦
º´¿ëÇÑ °æ¿ì, µÎ ÆÇ »çÀÌ¿¡¼­´Â 2, 4, 6, 8, 10GyÀÇ ¸ðµç ¹æ»ç¼±·®¿¡¼­ À¯ÀÇÇÑ ¼¼Æ÷»ýÁ¸À²ÀÇ
Â÷À̸¦ ³ªÅ¸³»¾ú´Ù.
4. A-253 ¼¼Æ÷ÁÖ¿¡ ¹æ»ç¼±À» ´Üµ¶Á¶»çÇÑ °æ¿ì¿Í ¹æ»ç¼±Á¶»ç¿Í 2§¶/§¢ÀÇ cisplatinÅõ¿©¸¦
º´¿ëÇÑ °æ¿ì, µÎ ±º »çÀÌ¿¡¼­´Â 2, 4, 6, 8, 10GyÀÇ ¸ðµç ¹æ»ç¼±·®¿¡¼­ À¯ÀÇÇÑ ¼¼Æ÷»ýÁ¸À²ÀÇ
Â÷À̸¦ ³ªÅ¸³»¾ú´Ù.
5. ¹æ»ç¼±Á¶»ç¿Í 2§¶/§¢ÀÇ bleomycin ¶Ç´Â ¹æ»ç¼±Á¶»ç¿Í cisplatinÅõ¿©¸¦ º´¿ëÇÑ °æ¿ì, µÎ
±º»çÀÌ ¿¡¼­´Â 2, 4, 6, 8, 10GyÀÇ ¸ðµç ¹æ»ç¼±·®¿¡¼­ ¼¼Æ÷»ýÁ¸À²ÀÇ Â÷ÀÌ°¡ ÀÎÁ¤µÇÁö ¾Ê¾Ò´Ù.
#ÃÊ·Ï#
The purpose of this study was to aid in the prediction of tumor cell tolerance to
radiotherapy and/or chemotherapy.
For this study, cell surviving curves were obtained for human epidermoid carcinoma
A-253 cell line using semiautomated MTT assay.
2, 4, 6, 8, 10Gy were irradiated at a dose rate of 210 cGy/min using 60
Irradiator ALDORADO 8. After irradiation, A-253 cell lines(2¡¿104
cells/m1) were exposed to bleomycin or cisplatin for 1 hour. The viable cells were
determined for each radiation dose with/without 2 §¶/§¢ of drug at the 3rd day. And
they were compared to control values.
The results were obtained as follows:
1. The surviving curve with gentle slope was obtained after irradiation of 2, 4, 6, 8,
10Gy on A-253 cell line.
2. The cytotoxicity of bleomycin or cisplatin at the concentration of 2§¶/§¢ was great
on A-253 cert line. But there was no significant difference between the cytotoxicity of
bleomycin and that of cisplatin.
3. There were significant differences of surviving fractions after irradiation with 2§¶
/ml of bleomycin compared with irradiation only on A-253 cell line.
4. There were significant differences of surviving fractions after irradiation with 2§¶/
§¢ of cisplatin conlpared with irradiation only on A-253 cell line.
5. There were no significant differences of surviving fractions between the groups of
irradiation with bleomycin and the groups of irradiation with cisplatin on A-253 cell line.

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