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Lee, Yoontae,  Ph.D.

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2006  Ph.D., Seoul National University
2011  Postdoctoral Fellow HHMI,
        Baylor College of Medicine

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E-mail yoontael@postech.ac.kr
Phone 054-279-2354(office)

 
Laboratory ¸¶¿ì½ººÐÀÚÀ¯ÀüÇבּ¸½Ç

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ÁßÁ¡¿¬±¸ºÐ¾ß |  ÁÖ¿ä³í¹®

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dia_red.gif 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.


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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dia_red.gif ÁÖ¿ä³í¹® (Selected Publications)

  1. 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
  2. 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
  3. 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
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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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