摘要:
The present invention relates to an Natriuretic peptide conjugate having improved in-vivo duration of efficacy and stability, comprising an Natriuretic peptide, a non-peptidyl polymer and a carrier substance, which are covalently linked to each other, and a use of the same. The Natriuretic peptide conjugate of the present invention has the in-vivo activity which is maintained relatively high, and has remarkably increased blood half-life, and thus it can be desirably employed in the development of long-acting formulations of various peptide drugs.
摘要:
A PEG-polypeptide homodimer complex, which comprises a PEG linker and two molecules of a physiologically active polypeptide, wherein the two molecules of the physiologically active polypeptide are connected via the PEG linker, and each of the two molecules of the physiologically active polypeptide is modified with one molecule of PEG, is useful for the development of a polypeptide drug having a prolonged half-life in the blood.
摘要:
Disclosed are a protein conjugate with improved in vivo duration and stability and the use thereof. The protein conjugate includes a physiologically active polypeptide, a non-peptide polymer and an immunoglobulin Fc fragment. Since the three components are covalently linked, the protein conjugate has extended in vivo duration and enhanced stability for the physiologically active polypeptide. The protein conjugate maintains the in vivo activity at relatively high levels and remarkably increases the serum half-life for the physiologically active polypeptide, with less risk of inducing undesirable immune responses. Thus, the protein conjugate is useful for developing long-acting formulations of various polypeptide drugs.
摘要:
Disclosed is a novel use of an immunoglobulin Fe fragment, and more particularly, a pharmaceutical composition comprising an immunoglobulin Fe fragment as a carrier. The pharmaceutical composition comprising an immunoglobulin Fe fragment as a carrier remarkably extends the serum half-life of a drug while maintaining the in vivo activity of the drug at relatively high levels. Also, when the drug is a polypeptide drug, the pharmaceutical composition has less risk of inducing immune responses compared to a fusion protein of the immunoglobulin Fe fragment and a target protein, and is thus useful for developing long-acting formulations of various polypeptide drugs.
摘要:
Disclosed is an IgG Fc fragment useful as a drug carrier. Also, the present invention discloses a recombinant vector expressing the IgG Fc fragment, a transformant transformed with the recombinant vector, and a method of preparing an IgG Fc fragment, comprising culturing the transformant. When conjugated to a certain drug, the IgG Fc fragment improves the in vivo duration of action of the drug and minimizes the in vivo activity reduction of the drug.
摘要:
Disclosed are a recombinant expression vector comprising a nucleotide sequence encoding an E. coli-derived signal sequence and a nucleotide sequence encoding an immunoglobulin constant region, and a transformant transformed with the expression vector. Also, disclosed is a method of mass-producing an immunoglobulin constant region by culturing the transformant and expressing the immunoglobulin constant region in a water-soluble form.
摘要:
This invention provides a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, theremostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same.
摘要:
A crystalline clopidogrel naphthalenesulfonate or a hydrate thereof, a method for preparing same, and a pharmaceutical composition containing same are provided.
摘要:
Ticlopidine and clopidogrel having high blood platelet aggregation inhibitory and anti-thrombotic activities are simply prepared by reacting a substituted thiophene derivative with a 2-chlorobenzylamine derivative.
摘要:
A method for preparing a 1-androstene derivative which comprises reacting a 2-iodo-androstane derivative with an oxidizing agent while maintaining the pH of the reaction mixture at a specific range gives the 1-androstene derivative with high purity and yield.