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HL60 ¼¼Æ÷ÁÖÀÇ ºÐÈ­ ½Ã °¨¼Ò Ư¼ºÀ» º¸ÀÌ´Â Glutathione S-TransferaseÀÇ Å¬·Î´× Cloning of a Glutathione S-Transferase Decreasing During Differentiation of HL60 Cell Line

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±èÀçö/Jae Chul Kim ¹ÚÀαÔ/À̱Ժ¸/¼Õ»ó±Õ/±è¹®±Ô/±èÁ¤Ã¶/In Kyu Park/Kyu Bo Lee/Sang Kyun Sohn/Moo Kyu Kim/Jung Chul Kim

Abstract

¸ñ Àû : HL60 ¼¼Æ÷ÁÖ¿¡¼­ PMA(phorbol 12-myrisate 13-acetate) ¹× DMSO
(dimethylsulfoxide)¿¡ ÀÇÇØ ºÐÈ­°¡ À¯µµµÉ ¶§ °¨¼ÒµÇ´Â Ư¼ºÀ» º¸ÀÌ´Â K872 Ŭ·Ð¿¡ ´ëÇÑ
¿°±â ¼­¿­, Á¶Á÷ ºÐÆ÷, ´Ü¹é ºÐ¸® µîÀ» ½ÃÇàÇÏ¿´´Ù.
Àç·á ¹× ¹æ¹ý : QIA plasmic extraction kit(Qiagen GmbH, Germany)¸¦ ÀÌ¿ëÇÏ¿© »ç¶÷ÀÇ
¸ðÀ¯µÎ ¼¼Æ÷ pBluescrlpt phagemid cDNA library·ÎºÎÅÍ K872 Ŭ·ÐÀ» ÃßÃâÇÏ¿´´Ù. Sanger's
dideoxy nucleotide chain-termination methodÀ» ÀÌ¿ëÇÏ¿©, ÃßÃâÇÑ K872 Ŭ·ÐÀÇ ¿°±â ¼­¿­
À» ºÐ¼®ÇÏ¿´´Ù. BLAST(Basic Local Aliment Search Tools) ÇÁ·Î±×·¥À¸·Î À¯ÀüÀÚ ÀºÇàÀÇ
¿°±â ¼­¿­°úÀÇ »óµ¿¼ºÀ» °Ë»öÇÏ¿´´Ù. K872 Ŭ·ÐÀ¸·Î ¸¸µç probe·Î ´Ù¾çÇÑ Àΰ£ Á¶Á÷ ¹× ¾Ï
¼¼Æ÷ÁַκÎÅÍ ºÐ¸®ÇÑ RNA¿¡ ´ëÇÏ¿© nothern blotÀ» ½ÃÇàÇÏ¿´´Ù. His-Patch Thifusion
expression systemÀ» ÀÌ¿ëÇÏ¿© ´ëÀå±Õ ¹èÁö¿¡ 0.1mM IPTG(isopropyl-¥â
-thiogalactopyranoside)¸¦ ÷°¡Çؼ­ °áÇմܹéÀÇ À¯ÀüÀÚ ¹ßÇöÀ» À¯µµÇÏ¿´´Ù. °áÇմܹéÀÌ ÇÔ
À¯µÈ ¿ëÃâ¾×À» SDS-PAGE¿¡ °É¾î¼­ ¹ßÇöµÈ ´Ü¹éÀ» È®ÀÎÇÏ¿´´Ù.
°á °ú : K872 Ŭ·ÐÀº 675°³ÀÇ ÄÚµù ¿µ¿ª°ú 280°³ÀÇ ÄÚµù°ú °ü·Ã ¾ø´Â ¿µ¿ªÀ¸·Î ±¸¼ºµÈ
1006°³ÀÇ ¿°±â·Î ±¸¼ºµÊÀ» °üÂûÇÏ¿´´Ù. Çص¶Æ²·Î ÃßÁ¤µÇ´Â ºÎºÐÀº ½ÃÀÛ ÄÚµ·À» Æ÷ÇÔÇÏ¿©
226°³ÀÇ ¾Æ¹Ì³ë»êÀ» Çü¼ºÇÏ°í ´Ü¹é »ê¹°ÀÇ ºÐÀÚ·®Àº 25,560 DaÀ¸·Î ÃßÁ¤µÇ¾ú´Ù. ÃßÁ¤ ¾Æ¹Ì
³ë»ê ¹è¿­Àº ÁãÀÇ glutathione S-transferase kappa 1(rGSTK1) ÀÇ ¾Æ¹Ì³ë»ê ¹è¿­°ú 70 %ÀÇ
»óµ¿¼ºÀ» º¸¿´´Ù. nothern blot¿¡ µû¸¥ ¹ßÇö ¾ç»óÀº ½ÉÀå, ¼öÀDZÙ, ¸»ÃÊ Ç÷¾× ¹éÇ÷±¸ µîÀÇ Á¶
Á÷¿¡¼­ ³ôÀº ¹ßÇöÀ» º¸¿´À¸¸ç ¹æ»ç¼±³»¼º°ú °ü·ÃÁö¾î º¼ ¶§ ´ëÀå¾Ï ¹× Èæ»öÁ¾ ¼¼Æ÷ÁÖ¿¡¼­
¹ßÇöÀÌ ³ô¾Ò´ø Á¡Àº Ư±âÇÒ ¸¸ÇÏ¿´´Ù.
°á ·Ð : »óµ¿¼º °Ë»ö °á°ú H872 À¯ÀüÀÚ´Â Ç×¾ÏÁ¦ ¹× ¹æ»ç¼±³»¼º°ú °ü·ÃÀÌ ÀÖ´Â rGSTK1
¿¡ ´ëÇÑ »ç¶÷ÀÇ »óµ¿ À¯ÀüÀÚ·Î »ç·áµÇ¸ç ÇâÈÄ ÀÌ¿Í °ü·ÃÇÑ ±â´É ºÐ¼®ÀÌ ÇÊ¿äÇÒ °ÍÀ¸·Î »ç·á
µÈ´Ù.

Purpose : By sequencing the Expressed Sequence Tags of human dermal papilla
cDNA library, we identified a clone named K872 of which the expression decreased
during differentiation of HL60 cell line.
Materials and Methods : K872 plasmic DNA was isolated according to QIA plasmid
extraction kit (Qiagen GmbH, Germany). The nucleotide sequencing was performed by
Sanger's method with K872 plasmid DNA. The most updated GenBank EMBL necleic
acid banks were searched through the internet by using BLAST (Basic Local Alignment
Search Tools) program. Nothern tots were performed using RNA isolated from various
human tissues and cancer cell lines. The gene expression of the fusion protein was
achieved by His-Patch Thiofusion expression system and the protein product was
identified on SDS-PAGE.
Results : K872 clone is 1006 nucleotides long, and has a coding region of 280
nucleotides and a 3'non-coding region of 280 nucleotides. The presumed open reading
frame starting at the 5'terminus of K872 encodes 226 amino acids, including the
initiation methionine residue. The amino acid sequence deduced from the open reading
frame of K872 shares 70% identity with that of rat glutathione 5-transferase kappa 1
(rGSTK1). The transcripts were expressed in a variety of human tissues and cancer
cells. The levels of transcript were relatively high in those tissues such as heart,
skeletal muscle, and peripheral blood leukocyte. It is noteworthy that K872 was found to
be abundantly expressed in colorectal cancer and melanoma cell lines.
Conclusion : Homology search result suggests that K872 clone is the human homolog
of the rGSTK1 which is known to be involved in the resistance of cytotoxic therapy.
We propose that meticulous functional analysis should be followed to confirm that.

Å°¿öµå

Glutathione S-Transferase; ¹æ»ç¼±³»¼º; HL60 ¼¼Æ÷ÁÖ; Glutathione S-Transferase; Radioresistance; HL6O cell;

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