Abstract:
PURPOSE: A PRAS40 fusion protein with improved cell penetration efficiency is provided to effectively suppress reactive oxygen species(ROS) generation and to be used s a therapeutic agent for treating Parkinson`s disease. CONSTITUTION: A PRAS40 fusion protein contains 9-15 amino acid residues and improves cell penetration efficiency by covalent bond of a transport domain with at least one end of PRAS40(proline-rich Akt substrate 40). The transport domain is HIV Tat 49-57 residue, oligolysine, oligoarginine, or oligo(lysine,arginine). A pharmaceutical composition for preventing and treating Parkinson`s disease, Huntingtun`s disease, Alzheimer`s disease, cerebral ischemia contains the PRAS40 fusion protein as an active ingredient and a pharmaceutically acceptable carrier.
Abstract translation:目的:提供具有改善的细胞渗透效率的PRAS40融合蛋白,以有效抑制活性氧(ROS)产生,并被用作治疗帕金森病的治疗剂。 构成:PRAS40融合蛋白含有9-15个氨基酸残基,并通过PRAS40(富含脯氨酸的Akt底物40)的至少一端的转运结构域的共价键提高细胞的穿透效率。 转运结构域是HIV Tat 49-57残基,寡聚赖氨酸,寡精氨酸或寡聚(赖氨酸,精氨酸)。 用于预防和治疗帕金森病,亨特屯病,阿尔茨海默病,脑缺血的药物组合物含有PRAS40融合蛋白作为活性成分和药学上可接受的载体。
Abstract:
Refined SIRT2 fusion protein is penetrated into a Raw 264.7 cell in a time and injection amount dependent way, and protects the cell from cell death and cytotoxicity induced by lipopolysaccharide and hydrogen peroxide. The penetrated SIRT2 fusion protein also controls the activation of NF-kB and MAPKs (mitogen-activated protein kinases), and the expression of cytokine.
Abstract:
Phosphoprotein enriched in astrocytes-15 (PEA-15) is a small protein created in neurons or astrocytic cells in brain. This protein which is a multi-functional protein can increase the cell survival rate thanks to its antiapoptotic and proapoptotic properties. Parkinson's disease is a neurodegenerative disease that dopamine neurons are reduced in substantia nigra in brain. The inventers found out that PEP-1-PEA-15 fusion protein can protect dopamine neurons from oxidation stress in SH-SY5Y neuroblastom cells and animals suffering from Parkinson's disease. It is confirmed that PEP-1-PEA-15 fusion protein can be transferred to SH-SY5Y cells and substantia nigra through western blot analysis. PEP-1-PEA-15 fusion protein prevents the active oxygen species production DNA tessellation induced to MPP+ and induces SH-SY5Y cell survival. Transmitted PEP-1-PEA-15 fusion protein improves the expression level of Bcl-2 protein but reduces the impression level of Bax protein. Also, PEP-1-PEA-15 fusion protein is transmitted to substantia nigra and prevents dopamine neuron cell death in substantia nigra. Therefore, PEP-1-PEA-15 fusion protein can prevent and treat Parkinson's disease.
Abstract:
PURPOSE: An increase method of fused protein into living cells or organs by adding levosulpiride to fused protein in which protein transport domains and therapeutic protein are covalently bonded is provided to increase therapeutic effects of protein medicines for various diseases. CONSTITUTION: An increase method of fused protein into living cells or organs is processed by adding levosulpiride to fused protein in which protein transport domains and therapeutic protein are covalently bonded. The levosulpiride is primarily processed in the living cells or organs than the fused protein. A protein transport domain is Tat, PEP-1, oligolysine, oligo arginine or oligo(lysine and arginine). The therapeutic protein is rpS3. A composition for preventing and treating inflammatory diseases comprises fused proteins in which is covalently bonded with the protein transport domain and levosulpiride. The inflammation therapeutic protein is rpS3. A composition for preventing and improving skin external application comprises fused proteins in which is covalently bonded with the protein transport domain and levosulpiride.
Abstract:
본 발명자들은 PRAS40 융합단백질이 인비트로에서 산화 스트레스로 유도된 신경세포사멸에 대한 세포 보호효과와 인비보에서 뇌허혈 동물모델 보호효과가 있음을 밝혔다. PRAS40 융합단백질은 신경세포 내로 농도 및 시간 의존적으로 효과적으로 투과하였다. 세포 내로 투과된 PRAS40 융합단백질은 과산화수소 독성에 대해 세포생존율을 증가시켰고, 세포내 활성산소종 수준 및 과산화수소로 유도되는 DNA 단편화를 감소시켰다. 동물모델에서는 전뇌 해마 CA1 부분에 일시적 허혈을 유도했을 때 일어나는 신경세포사멸에 대해 PRAS40 융합단백질이 보호효과를 나타내었다. 이러한 결과들은 PRAS40 융합단백질이 세포사멸에 대해 보호효과가 있으며, 뇌허혈 손상으로부터 신경세포를 보호하는 치료효과가 있음을 말해준다.
Abstract:
파킨슨병은 뇌의 흑색질 내에서 도파민 뉴런이 점차 상실되는 신경퇴행성 질환이다. 리보솜 단백질 S3 (rpS3)는 단백질 합성, 항산화 및 UV 엔도뉴클리에이즈 Ⅲ 활성과 같은 다양한 기능을 수행한다. 본 발명자들은 앞선 연구에서 PEP-1-rpS3 융합단백질이 피부염증을 억제하고 뇌허혈 손상에서 신경보호효과를 나타냄을 밝혔다. 본 발명자들은 PEP-1-rpS3 융합단백질이 SH-SY5Y 신경아세포종 세포 및 파킨슨병 동물모델에서 산화 스트레스로부터 도파민 뉴런을 보호할 수 있음을 밝혀내었다. PEP-1-rpS3 융합단백질은 SH-SY5Y 세포 내로 그리고 뇌의 흑색질 내로 잘 이동함을 웨스턴 블랏 분석으로 확인하였다. PEP-1-rpS3 융합단백질은 MPP + 로 유도되는 활성산소종 생성 및 DNA 조각화를 현저히 저해하였으며, 결과적으로 SH-SY5Y 세포의 생존을 유도했다. 신경보호 효과는 PEP-1-rpS3 융합단백질이 친-자기세로사멸 매개자 및 항-자기세포사멸 매개자의 수준에 영향을 미침으로써 얻어진다. 나아가, TH 항체 및 크레실 바이올렛 염색을 이용한 면역조직화학 분석 데이타는 PEP-1-rpS3 융합단백질이 MPTP와 같은 산화 스트레스에 대하여 흑색질 내의 도파민 세포를 현저히 보호함을 나타낸다. 따라서, PEP-1-rpS3 융합단백질은 파킨슨병의 예방 및 치료 용도로 이용 가능하다.