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:
PURPOSE: A composition containing cell transducing rpS3 fusion protein is provided to smoothly deliver the protein into skin cells and to effectively suppress inflammation. CONSTITUTION: A pharmaceutical composition for preventing and treating skin inflammatory diseases contains cell transducing rpS3 fusion protein as a main ingredient. The fusion protein has a non-hyphophilic domain containing 5 or more tryptophane, a hydrophilic domain containing 4 or more lysine, and protein transduction domain with a spacer which divides two domains. A cosmetic composition for treating skin inflammation contains 15-30 amino acids.
Abstract:
PURPOSE: A pharmaceutical composition containing cell permeable rpS3 fusion protein is provided to smoothly deliver rpS3 fusion proteins into neural cells and to prevent the neural cells from apoptosis. CONSTITUTION: A pharmaceutical composition for preventing and treating neural diseases contains a cell permeable rpS3 fusion protein having a protein transduction domain linked to at least one end among N-terminal and C-terminal of rpS3 protein by covalent bond. The protein transduction domain comprises: a non-hydrophilic domain containing 15-30 amino acids and 5 or more tryptophans; a hydrophilic domain containing 4 or more lysines; and a spacer which separates two domains the rpS3 fusion protein has an amino acid sequence of sequence number 7, 9, or 11.