Abstract:
본 발명은 ERR (Estrogen Related Receptor)α를 유효성분으로 포함하는 Oct-4 전사인자의 활성 촉진용 조성물 및 ERRα를 유효성분으로 포함하는 만능성 세포의 분화 조절용 조성물에 관한 것이다. 본 발명의 ERRα 단백질은 전사인자 Oct-4의 활성을 촉진하여 Oct-4가 관여하는 만능성 세포의 분화과정을 조절하는데 이용될 수 있다.
Abstract:
A composition for regulating the transcriptional activity of hTAFII68(NTD) is provided to control the transcriptional activity of the hTAFII 68 (NTD) which is oncogene easily. A polypeptide for regulating the transcriptional activity of hTAFII68(NTD) comprises the hTAFII 68 (NTD) binding domain of the GAPDH protein of the second sequence. The hTAFII 68 (NTD) binding domain of the GAPDH protein of the second sequence promotes the transcriptional activity of the hTAFII 68 (NTD).
Abstract:
The present invention provides a method for screening a material for preventing or treating tumor diseases using novel transcription activating functions and transactivation functions of a TFG-TEC fusion protein, a pharmaceutical composition of the same, and an expression vector and a composition for promoting transcription activities using TFG (NTD). The TFG-TEC fusion protein of the present invention not only has the same sequence specificity as TEC, but also has more excellent transcription activation promoting functions than TEC. Moreover, the TFG (NTD) in the TFG-TEC fusion protein of the present invention serves as a strong transactivation domain, and PB1 domains and SPYGQ-rich regions of the TFG (NTD) have partial transactivation. As a result, the TFG-TEC fusion protein of the present invention promotes the expression of downstream genes (e.g. Skp2, L-Myc, SOCS2, or STAT-3) which are known to be regulated by TEC. Accordingly, the method for screening a material which inhibits the expression of a TFG-TEC fused gene or inhibits the activation of a TFG-TEC fusion protein and the pharmaceutical composition using the same can be usefully applied in preventing or treating tumor diseases.
Abstract:
The present invention provides a method for screening a substance for preventing or treating tumor disorders using novel transcriptional activation and transactivation of the TFG-TEC fusion protein, a pharmaceutical composition thereof, and an expression vector and a composition for promoting transcriptional activity using TFG (NTD). The TFG-TEC fusion protein of the present invention has identical sequence specificity to the TEC, and more excellent ability to promote transcriptional activity. In addition, the TFG (NTD) in the TFG-TEC fusion protein of the present invention functions as a transactivation domain, and the PB1 domain and SPYGQ-rich regions of the TFG (NTD) has partial transactivation. As a result, the TFG-TEC fusion protein of the present invention promotes the expression of downstream genes (e.g., Skp2, L-Myc, SOCS2, or STAT-3), which has been known to be regulated by TEC. Thus, the method for screening a substance for inhibiting the expression of the TFG-TEC fusion protein or inhibit the activity of the TFG-TEC fusion protein and the pharmaceutical composition using the same can be useful to prevent or treat tumor disorders, diseases, or conditions.
Abstract:
PURPOSE: A medium composition containing placental extract for culturing stem cells is provided to enhance proliferation rate of the embryonic stem cells and to maintain undifferentiation state and differentiation ability. CONSTITUTION: A composition for promoting proliferation of stem cells contains placental extract as an active ingredient. The medium composition contains placental extract as an active ingredient. The placental extract is derived from pigs. The stem cells are pluripotent stem cells or multipotent stem cells. A method for maintaining and increasing stem cells comprises a step of culturing the stem cells in a medium containing placental extract.