»ç¶÷ c-Ha-ras Proto-oncogeneÀÌ ÁÖÀÔµÈ ÇüÁúÀüȯ ·§µå¿¡¼ 12--Dimethylbenz[a]anthracene¿¡ ÀÇÇÑ ÇÇºÎ¹ß¾Ï °¨¼ö¼º Æò°¡
skin Tumor Susceptibility to 7,12-Dimethylbenz[a]anthracene in Transgenic Rats Carrying Human c-Ha-ras Proto-oncogene
¹Úö¹ü, ±è´ëÁß, È«ÁøÅÂ, Çѹü¼®, ÀÌÀμ±, Tsuda Hiroyuki,
¼Ò¼Ó »ó¼¼Á¤º¸
¹Úö¹ü ( Park Cheol-Beom )
Chungbuk National University College of Veterinary Medicine
±è´ëÁß ( Kim Dae-Joong )
Chungbuk National University College of Veterinary Medicine
È«ÁøÅÂ ( Hong Jin-Tae )
Chungbuk National University
Çѹü¼® ( Han Beom-Seok )
½ÄÇ°ÀǾàÇ°¾ÈÀüû ±¹¸³µ¶¼º¿¬±¸¿ø µ¶¼ºº´¸®°ú
ÀÌÀμ± ( Lee In-Seon )
°è¸í´ëÇб³ ÀüÅë¹Ì»ý¹°ÀÚ¿ø°³¹ß ¹× »ê¾÷È¿¬±¸¼¾ÅÍ
( Tsuda Hiroyuki )
National Cancer Center Research Institute
KMID : 0603520020070020081
Abstract
»ç¶÷ c-Ha-ras ¹ß¾ÏÀ¯ÀüÀÚ¸¦ ÁÖÀÔÇÑ ·§µå¸¦ »ý»êÇÏ¿© ÇÇºÎ¹ß¾Ï °¨¼ö¼ºÀ» ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù. 5ÁÖ·ÉÀÇ ÇüÁúÀüȯ ·§µå¿¡ DMBA (2.5 mg/ml, Iȸ)¸¦ óġÇÑ ÈÄ TPA (100 nM,3ȸ/ÁÖ)¸¦ 20ÁÖ±îÁö µµÆ÷ ÇÑ µÚ ÇǺÎÀÇ À°¾ÈÀûÀÎ º¯È¸¦ ±â·ÏÇÏ°í, Á¶Á÷À» ó¸®ÇÏ¿© °üÂûÇÏ¿´´Ù. ÇüÁúÀüȯ ·§µåÀÇ µµÆ÷µÈ ÇǺο¡¼ ¼±¾Ï°ú ÆíÆò¼¼Æ÷¾ÏÀÌ ¹ß»ýÇÏ¿´À¸¸ç, ´ëÁ¶±º¿¡¼´Â ÀÌ·¯ÇÑ º´º¯ÀÌ °üÂûµÇÁö ¾Ê¾Ò´Ù. ÀÌ·¯ÇÑ °á°ú·ÎºÎÅÍ ÀÌ ÇüÁúÀüȯ ·§µå´Â ÇÇºÎ¹ß ¾Ï °¨¼ö¼ºÀÌ ¸Å¿ì ³ôÀ¸¸ç ÇǺξϹ߻ýÀÇ ±âÀü¿¬±¸ ¹× ¾Ï¿¹¹æ¹°ÁúÀ» ½ÇÇèÇϱ⿡ ÁÁÀº ¸ðµ¨ µ¿¹°·Î¼ ÀÌ¿ë°¡Ä¡ ÀÖ´Ù°í »ý°¢ÇÑ´Ù.
We have established a transgenic rat line carrying three copies of the human c-Ha-ras proto-oncogene with its own original promoter region, Jcl/SD-TgN (Hras gen) 128Ncc rat. These rats are highly susceptible to N-methyl-N-nitrosourea induced mammary car-cinogenesis. To examine their susceptibility to 7, l2-dimethylbenz[a]anthracene(DMBA) induced skin carcinogenesis, male transgenic rats and wild-type littermates were treated with a single dose of DMBA. Many tumors were observed only in the DMBA treated Hras-128 transgenic rats, but not in wild type. These results indicate that transgenic rats carrying human c-Ha-ras proto-oncogene are highly susceptible to DMBA-induced skin carcinogenesis and may be utilized as a rat model for analysis of skin tumorigenesis.
Å°¿öµå
TPA; ÇǺΠ¹ß¾Ï; ÇüÁúÀüȯ ·§µå; c-Ha-ras ¹ß¾ÏÀ¯ÀüÀÚ
Skin carcinogenesis; Transgenic rats; c-Ha-IBS oncogene; DMBA
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