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ÀÌÀ±Å |
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Lee, Yoontae, Ph.D.
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ºÐÀÚ.»ý¸í°úÇкΠ¹× »ý¸í°úÇаú
Á¶±³¼ö ¸¶¿ì½º ºÐÀÚ À¯ÀüÇÐ
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2006 Ph.D., Seoul
National University 2011
Postdoctoral Fellow HHMI, Baylor
College of Medicine
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ÁßÁ¡¿¬±¸ºÐ¾ß
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ÁßÁ¡¿¬±¸ºÐ¾ß (Research
Interests)
º» ¿¬±¸½Ç¿¡¼´Â ¾ÆÁ÷±îÁö ¸¹Àº ¿¬±¸°¡ µÇ¾î ÀÖÁö ¾ÊÀº Àü»ç ¾ïÁ¦ ÀÎÀÚÀÎ Capicua (Cic)- Ataxin-1 (Atxn1)/Ataxin-1 Like (Atxn1L) complex ÀÇ »ý¸®ÇÐÀûÀÎ ¿ªÇÒ ¹× ¾Ï°ú °°Àº ¿©·¯ Áúº´µé¿¡¼ ´ã´çÇÏ´Â ¿ªÇÒ µéÀ» ¸¶¿ì½º µ¿¹° ¸ðµ¨À» ÀÌ¿ëÇÏ¿© ¿¬±¸ÇÑ´Ù. ±×¸®°í, ´õ ³ª¾Æ°¡ Cic-Atxn1/Atxn1L transcription repressor¿¡ ÀÇÇØ Á÷Á¢ Á¶ÀýµÇ´Â target À¯ÀüÀÚµéÀ» ¹ß±¼ÇÏ¿© ¼¼Æ÷ ¾È¿¡¼ ÀÌ Àü»ç ¾ïÁ¦ ÀÎÀڵ鿡 ÀÇÇØ ÁøÇàµÇ´Â molecular pathwayµéÀ» ÀÌÇØÇÑ´Ù. ±Ã±ØÀûÀ¸·Î, Cic-Atxn1/Atxn1L ´Ü¹éÁúüÀÇ ¿ªÇÒÀ» ¸íÈ®È÷ ±Ô¸íÇÔÀ¸·Î½á ¾Ï°ú °°Àº Áúº´µéÀÇ ¹ßº´ ±âÀüÀ» º¸´Ù Àß ÀÌÇØÇϴµ¥ ¿¬±¸ÀÇ ÀÇÀǰ¡ ÀÖÀ» °Í ÀÌ´Ù.
1. Role of Cic-Atxn1/Atxn1L transcription repressor complexes in cancer progression
¼±Çà ¿¬±¸¸¦ ÅëÇØ Cic-Atxn1/Atxn1L Àü»ç ¾ïÁ¦ ´Ü¹éÁúü°¡ ¹ßÇöÀÌ µÇÁö ¾Ê´Â ¸¶¿ì½ºµé (knock-out mice)ÀÇ °æ¿ì hydrocephalus (¼öµÎÁõ), omphalocoele (Á¦´ëÅ»Àå), lung alveolarization defectµî extracellular matrix (ECM) remodelingÀÌ Àß ¸ø Á¶ÀýµÉ ¶§ ¹ß»ýµÇ´Â developmental problemµéÀ» °®´Â´Ù´Â »ç½ÇÀ» ¾Ë°Ô µÇ¾ú´Ù (Lee et al. 2011. Dev Cell.). ºÐÀÚ ¼öÁØ¿¡¼´Â ÀÌ Àü»ç ÀÎÀÚÀÇ °áÇÔÀÌ ¿©·¯ Á¾·ùÀÇ Matrix metalloproteinase (Mmp)µéÀÇ °ú¹ßÇöÀ» À¯µµÇÏ°Ô µÇ°í, Áõ°¡µÈ ¾çÀÇ Mmp È¿¼ÒµéÀÌ °á±¹ ECM remodelingÀÌ Àß ¸ø µÇµµ·Ï À¯µµÇÏ°Ô µÈ´Ù (±×¸² ÂüÁ¶). ÇÑÆí ¾Ï¹ß»ý°ú ÀüÀÌ °úÁ¤¿¡¼ ECM remodelingÀÌ À߸ø Á¶ÀýµÈ´Ù´Â °Í°ú ÀÌ´Â Mmp ÀÇ °ú¹ßÇö¿¡ ÀÇÇØ¼ ¸Å°ÔµÉ ¼ö ÀÖ´Ù´Â »ç½ÇÀº Àß ¾Ë·ÁÁ® ÀÖ´Ù. ±×·¸´Ù¸é ÀÌ Cic-Atxn1/Atxn1L Àü»ç ¾ïÁ¦ ´Ü¹éÁúüÀÇ °áÇÔÀÌ °ú¿¬ ¾ÏÀÇ ¹ß»ý°ú ÀüÀÌ¿¡ ½ÇÁ¦·Î ¿µÇâÀ» ÁÖ°Ô µÉ±î? ÀÌ Áú¹®¿¡ ´ë´äÇϱâ À§ÇØ º» ¿¬±¸½Ç¿¡¼´Â ¿©·¯°¡Áö »ýÁã ¸ðµ¨À» ÀÌ¿ëÇÏ¿© Cic-Atxn1/Atxn1L Àü»ç ¾ïÁ¦ ´Ü¹éÁúüÀÇ ¾Ï ¹ßº´°ú ÀüÀÌ¿¡¼ÀÇ ±â´ÉÀ» Å×½ºÆ®ÇϰíÀÚ ÇÑ´Ù.
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2.Investigation of molecular mechanism underlying phenotypes
in the Cic-Atxn1/Atxn1L deficient mice
º¸´Ù ±¸Ã¼ÀûÀÌ°í ¸íÈ®ÇÑ Cic-Atxn1/Atxn1L Àü»ç ¾ïÁ¦ ÀÎÀÚÀÇ ±âÀÛÀ» ÀÌÇØÇϱâ À§ÇØ Àüü genome ¼öÁØ¿¡¼ target À¯ÀüÀÚµéÀ» ¹ß±¼ÇϰíÀÚ ÇÑ´Ù. Á÷Á¢ÀûÀÎ DNA °áÇÕ ´É·ÂÀ» °®´Â Cic´Â DNA ¼¿ ƯÀÌÀûÀ¸·Î DNA¿¡ °áÇÕÇÑ´Ù. ÇöÀç±îÁö ¾Ë·ÁÁø CicÀÇ DNA binding motif´Â TGAATGAA ȤÀº TGAATGGAÀÌ´Ù. µû¶ó¼ Cic ´Ü¹éÁú¿¡ ´ëÇÑ ChIP-seq, Cic knock-out mouse¿¡¼ÀÇ transcriptome analysis, ±×¸®°í bioinformatics¸¦ ÅëÇÑ Àüü À¯ÀüÀÚÀÇ DNA sequence ºÐ¼®À» Á¶ÇÕÇÏ¿© º¸´Ù °¡´É¼ºÀÌ ³ôÀº Cic-Atxn1/Atxn1L Àü»ç ¾ïÁ¦ ÀÎÀÚÀÇ Á÷Á¢ÀûÀÎ taget À¯ÀüÀÚµéÀ» ¹ß±¼ÇÑ´Ù. À̶§ ´Ü¹éÁúÀ» codingÇÏ´Â À¯ÀüÀÚµé »Ó¸¸ ¾Æ´Ï¶ó, microRNA¿Í °°Àº non-coding RNA¿¡ ´ëÇØ¼µµ ÀÌ Àü»ç ¾ïÁ¦ ÀÎÀÚ¿¡ ÀÇÇØ Á÷Á¢ÀûÀ¸·Î Á¶ÀýµÉ ¼ö ÀÖ´ÂÁö ¿©ºÎ¸¦ ŸÁøÇÑ´Ù. ÀÌÈÄ ÀÌ·¸°Ô ¹ß±¼µÈ target À¯ÀüÀÚµéÀÇ ¹ßÇö º¯È°¡ in vivo¿¡¼ ½ÇÁ¦·Î ¾î¶°ÇÑ °á°ú¸¦ ÃÊ·¡ÇÏ´ÂÁö¸¦ ¸¶¿ì½º ¸ðµ¨À» ÀÌ¿ëÇÏ¿© ¿¬±¸ÇÑ´Ù.
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ÁÖ¿ä³í¹® (Selected
Publications)
- Lee, Y., Fryer, J.D., Kang, H., Crespo-Barreto,
J., Bowman, A.B., Kahle, J.J., Gao, Y., Hong,
J.S., Kheradmand, F., Orr, H.T., Finegold, M.J.
and Zoghbi, H.Y. Atxn1 protein family and Cic
regulate extracellular matrix remodeling and
lung alveolarization. Developmental Cell. 2011
in press
- Lee, Y., Samaco, R.C., Gatchel, J.R., Thaller, C., Orr, H.T. and Zoghbi, H.Y. miR-19, miR-101, and miR-130 co-regulate ATXN1 levels to potentially modulate SCA1 pathogenesis. Nature Neuroscience. 2008; 11:1137-9
- Han, J.*, Lee, Y.*, Yeom, K.-H.*, Nam, J.-W., Heo, I., Rhee, J.-K., Sohn, S.Y., Cho, Y., Zhang, B.-T., and Kim, V.N. (*co-first authors) Molecular basis for the recognition of primary microRNAs by the Drosha-DGCR8 complex. Cell. 2006; 125(5):887-901
- Lee, Y.*, Hur, I.*, Park, S.-Y.*, Kim, Y.-K., Suh, M.R., and Kim, V.N. (*co-first authors) The role of PACT in the RNA silencing pathway. EMBO Journal. 2006; 25:522-532.
- Lee, Y., Kim, M.J., Han, J., Yeom, K.-H., Lee, S.H., Baek, S.H. and Kim, V.N. MicoRNA genes are transcribed by RNA polymerase II. EMBO Journal. 2004; 23:4051-4060.
- Han, J.*, Lee, Y.*, Yeom, K.-H., Kim, Y.-K., Jin, H., and Kim, V.N. (*co-first authors) The Drosha-DGCR8 complex in primary microRNA processing. Genes and Development. 2004; 18:3016-3027.
- Lee, Y., Ahn, C., Han, J., Choi, H., Kim, J., Yim, J., Lee, J., Provost, P., Rådmark, O., Kim, S., and Kim, V.N., The Nuclear RNase III Drosha Initiates MicroRNA Processing. Nature. 2003; 425:415-419.
- Lee, Y., Jeon, K.P., Lee, J.T., Kim, S and Kim, V.N., MicroRNA maturation: stepwise processing and subcellular localization. EMBO Journal. 2002; 21:4663-4670.
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