ÀÎü °£¾ÏÁ¶Á÷¿¡¼ ¶ó¿ì½º À°Á¾ ¹ÙÀÌ·¯½º Enhancer Factor À¯ÀüÀÚÀÇ ¹ßÇö
Expression of Rous Sarcoma Virus Enhancer Factor Gene in Human Hepatocellular Carcinoma
¼Ò¼Ó »ó¼¼Á¤º¸
½ÅºÎ¾È/Boo Ahn Shin
±è°æ±Ù/Á¶Ã¶±Õ/ÀÌÇöö/¿ÀÁ¾¼®/ÀÌÁØÇà/Àå¹Ì¿µ/Kyung Kun Kim/Chol Kyoon Cho/Hyun Chul Lee/Jong Suk Oh/Joon Haeng Rhee/Mee Young Chang
KMID : 0360319970290040547
Abstract
°á·Ð
ÀúÀÚ µîÀº Rous sarcoma virus LTRs(long terminal repeats)¿¡ °áÇÕÇÏ´Â ¼¼ Á¾·ùÀÇ Àü»ç
ÀÎÀÚ(RSV-EF-I, II, ¹× III) À¯ÀüÀÚ¸¦ Ŭ·Î´×ÇÏ¿´´Âµ¥, ÀÌ °¡¿îµ¥ RSV-EF-IÀº ÁãÀÇ Á¤»ó°£
¿¡¼´Â ¹ßÇöÇÏÁö ¾ÊÁö¸¸ ÁãÀÇ °£¾ÏÁ¶Á÷ ¹× immortalized cell line¿¡¼ °ÇÏ°Ô ¹ßÇöÇÏ¿´´Ù.
µû¶ó¼ ÀúÀÚ µîÀº RSV-EF-I À¯ÀüÀÚ¿Í ºñ½ÁÇÑ ±â´ÉÀ» ÇÏ´Â Àΰ£ÀÇ À¯ÀüÀÚ¸¦ ã°íÀÚ human
genomic library ¹× Àΰ£ °£¾Ï¼¼Æ÷¿¡¼ À¯·¡ÇÑ human Hep G2 cDNA library¸¦ °Ë»öÇÏ¿©
cloneÀ» ºÐ¸®ÇÏ¿´´Ù. ¿°±â¼¿ ºÐ¼®°á°ú HYB-aÀ¯ÀüÀÚ´Â Y-box ´Ü¹é À¯ÀüÀÚÀÇ ÀÏÁ¾À̾ú´Â
µ¥ ÃßÁ¤µÇ´Â ¾Æ¹Ì³ë»ê ¼¿¿¡¼ cold shock domainÀº ´Ù¸¥ Y-box ´Ü¹é°ú ÀÏÄ¡ÇÏ¿´À¸³ª
C-terminal regionÀÇ ÀϺΰ¡ ¼Ò½ÇµÇ¾î ÀÖ¾ú´Ù.
Northern blot analysis¸¦ ½ÃÇàÇÑ °á°ú HYB-a´Â Àΰ£ÀÇ Á¤»ó°£¿¡¼´Â ¹ßÇöµÇÁö ¾ÊÁö¸¸
°£¾ÏÁ¶Á÷¿¡¼´Â °ÇÏ°Ô ¹ßÇöµÇ¾î °£¾ÏÀÇ Çü¼º¿¡ Áß¿äÇÑ ¿ªÇÒÀ» Çϸ®¶ó°í ÃßÁ¤µÇ¾ú´Ù.
#ÃÊ·Ï#
Purpose: We have previously cloned three enhancer factor genes encoding proteins
that bind to long terminal repeats(LTRs) of Rous sarcoma virus. Among these genes,
RSV-EF-I gene is expressed in rat hepatoma tissues and several proliferating cell lines
but not in normal rat liver tissues. We have isolated the human homologue of
RSV-EF-I gene and examined its expression in human hepatocellular carcinoma tissues.
Materials and Methods: We have screened the human genomic library and cDNA
library of Hep G2 cell line derived from human hepatocellular carcinoma to isolate the
human homologue of RSV-EF-I gene.
Results: We have isolated one cDNA clone containing about 1.5 kb insert and
sequenced. Sequence analysis reveals that this human homologue of RSV-EF-I gene has
a high similarities to human YB-1 mRNA, human DNA-binding protein B(dbpB) gene
and other Y-box protein genes. It is expressed in human hepatocellular carcinoma but
very slightly in normal human liver tissues in Northern blot analysis.
Conclusion: Our data suggest that the human homologue of RSV-EF-I gene
presumably belongs to Y-box protein family genes and plays a role in the
transformation of the human hepatoma cells.
Å°¿öµå
RSV; LTRs; Hepatocellular carcinoma; Enhancer factor; Y-box;
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