KR20180021470A - 세포투과성 Atox1 융합단백질을 포함하는 항염증 약학 조성물 - Google Patents
세포투과성 Atox1 융합단백질을 포함하는 항염증 약학 조성물 Download PDFInfo
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- KR20180021470A KR20180021470A KR1020160106060A KR20160106060A KR20180021470A KR 20180021470 A KR20180021470 A KR 20180021470A KR 1020160106060 A KR1020160106060 A KR 1020160106060A KR 20160106060 A KR20160106060 A KR 20160106060A KR 20180021470 A KR20180021470 A KR 20180021470A
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- atox1
- fusion protein
- tat
- protein
- cells
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- Peptides Or Proteins (AREA)
Abstract
해결수단: 본 발명은 세포투과성 Atox1 융합단백질을 포함하는 항염증 약학 조성물에 관한 것으로서, 세포 내로 투과된 Atox1 융합단백질은 과산화수소 독성에 대해 세포생존율을 증가시키고, 활성산소종 수준을 감소시켜 세포보호 작용을 하였다. LPS-유도된 COX2와 iNOS 단백질 발현 수준을 투여량 의존적으로 현저히 감소시켰다. 또한, Tat-Atox1 융합단백질은 고농도 LPS로 유도된 염증반응을 억제하였다. 뿐만 아니라, Tat-Atox1 융합단백질은 피부 염증에서 초기에 일어나는 단핵세포 (monocyte)와 같은 염증세포의 침윤을 현저히 저해하였고, TPA로 유도되는 동물 염증모델에서 COX-2 발현 수준과 TNF-α, IL-1β 및 IL-6 생성을 현저히 감소시켰고, TPA로 유도되는 피부염증 동물모델에서 TPA로 유도되는 p38, ERK 및 JNK 인산화와 p65와 IkBα인산화를 저해하였다. 이는 투과된 Tat-Atox1 융합단백질이 세포자기사멸 경로를 저해함으로써 과산화수소로 유도되는 세포사멸로부터 세포를 보호효과가 있으며, 염증 치료효과가 있음을 말해준다.
Description
도 2는 Raw 264.7 세포 내로 Tat-Atox1 융합단백질의 투과를 나타낸다. 세포는 60 ㎜ 배양접시에서 배양한 후 Tat-Atox1 융합단백질 (0.01 ~ 0.3 μM)과 대조군 Atox1 단백질을 한 시간 동안 배양배지에 가하여 웨스턴 블롯으로 분석하였다.
도 3은 Raw 264.7 세포 내로 Tat-Atox1 융합단백질 (0.3 μM)과 대조군 Atox1 단백질을 15 ~ 60분간 배양배지에 가하여 웨스턴 블롯으로 분석한 결과이다.
도 4는 세포 투과된 Tat-Atox1 융합단백질의 세포 내 분포를 공촛점 현미경으로 관찰한 사진이다.
도 5는 Raw 264.7 세포 내로 투과된 Tat-Atox1 융합단백질의 안정성을 다양한 시간 경과 후 평가한 것이다 (1 ~ 15시간). 세포는 0.3 μM Tat-Atox1 융합단백질로 한 시간 동안 선처리하고, 웨스턴 블롯으로 분석하였다.
도 6은 Raw 264.7 세포에서 LPS로 유도한 염증반응에 대한 Tat-Atox1 융합단백질의 저해효과를 나타낸다.
도 7은 Raw 264.7 세포 내로 Atox1 융합단백질 (0.01 ~ 0.3 μM)을 1시간 동안 처리하고 LPS로 염증을 유발하여 웨스턴 블롯 분석으로 COX-2와 iNOS를 측정한 결과이다.
도 8은 Raw 264.7 세포 내로 Atox1 융합단백질 (0.01 ~ 0.3 μM)을 1시간 동안 처리하고 LPS로 염증을 유발하여 RT-PCT 분석으로 TNF-α, IL-1β, IL-6를 측정한 결과이다.
도 9는 Raw 264.7 세포 내로 Atox1 융합단백질 (0.01 ~ 0.3 μM)을 1시간 동안 처리하고 LPS로 염증을 유발하여 웨스턴 블롯 분석으로 p65, IκBα를 측정한 결과이다.
도 10은 Raw 264.7 세포 내로 Atox1 융합단백질 (0.01 ~ 0.3 μM)을 1시간 동안 처리하고 LPS로 염증을 유발하여 웨스턴 블롯 분석으로 p38, JNK, ERK를 측정한 결과이다.
도 11은 Raw 264.7 세포 내로 Atox1 융합단백질 (0.01 ~ 0.3 μM)을 1시간 동안 처리하고 LPS로 염증을 유발하여 웨스턴 블롯 분석으로 Akt를 측정한 결과이다.
도 12는 8주령 마우스 수컷 귀에 TPA로 염증을 유발하여 Tat-Atox1 융합단백질 0.3 μM을 처리하고 H&E 염색을 수행한 결과이다.
도 13은 8주령 마우스 수컷 귀에 TPA로 염증을 유발하여 Tat-Atox1 융합단백질 0.3 μM을 처리하고 COX-2와 iNOS을 웨스턴 블롯 분석 및 RT-PCT을 통해 확인한 결과이다.
도 14는 8주령 마우스 수컷 귀에 TPA로 염증을 유발하여 Tat-Atox1 융합단백질 0.3 μM을 처리하고 TNF-α, IL-1β, IL-6을 RT-PCT을 통해 확인한 결과이다.
도 15는 8주령 마우스 수컷 귀에 TPA로 염증을 유발하여 Tat-Atox1 융합단백질 0.3 μM을 처리하고 p65, IκBα를 웨스턴블롯 분석을 통해 확인한 결과이다.
도 16은 8주령 마우스 수컷 귀에 TPA로 염증을 유발하여 Tat-Atox1 융합단백질 0.3 μM을 처리하고 p38, JNK, ERK를 웨스턴블롯 분석을 통해 확인한 결과이다.
도 17은 8주령 마우스 수컷 귀에 TPA로 염증을 유발하여 Tat-Atox1 융합단백질 0.3 μM을 처리하고 Akt를 웨스턴블롯 분석을 통해 확인한 결과이다.
Claims (3)
- Atox1 (Antioxidant 1) 단백질의 N-말단 및 C-말단 중 한 군데 이상에 단백질 수송 도메인이 공유결합된 Atox1 융합단백질을 함유하는 염증 치료제 조성물.
- 청구항 1에 있어서,
상기 단백질 수송 도메인은 HIV Tat 펩타이드임을 특징으로 하는 Atox1 융합단백질을 함유하는 염증 치료제 조성물.
- 청구항 1에 있어서,
상기 융합단백질은 서열번호 4, 6 또는 8인 것을 특징으로 하는 Atox1 융합단백질을 함유하는 염증 치료제 조성물.
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CN109112141A (zh) * | 2018-06-13 | 2019-01-01 | 华中农业大学 | 影响水稻体内铜转运和分配的分子伴侣蛋白OsATX1的克隆及应用 |
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CN109112141A (zh) * | 2018-06-13 | 2019-01-01 | 华中农业大学 | 影响水稻体内铜转运和分配的分子伴侣蛋白OsATX1的克隆及应用 |
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