摘要:
The present invention provides for biopolymer conjugates of an IL-11 analog (mIL-11) and a biocompatible polymer. The mIL-11 of the invention displays an enhanced resistance to acidolysis and shows increased stability as compared to rhIL-11. The conjugates of the present invention are characterized by a longer serum half-life and exhibit essentially no loss of activity as compared to the corresponding unconjugated mIL-11.
摘要:
The present invention provides for biopolymer conjugates of an IL-11 analog (mIL-11) and a biocompatible polymer. The mIL-11 of the invention displays an enhanced resistance to acidolysis and shows increased stability as compared to rhIL-11. The conjugates of the present invention are characterized by a longer serum half-life and exhibit essentially no loss of activity as compared to the corresponding unconjugated mIL-11.
摘要:
The present invention relates to conjugates of biocompatible polymers and biologically active molecules wherein the activated biocompatible polymer is conjugated to a carboxyl group of biologically active material at a molar ratio of 1:1 and methods of preparation thereof and a pharmaceutical composition comprising the same.
摘要:
The present invention relates to a pharmaceutical composition for inhibiting angiogenesis which comprises arginine deiminase as an active ingredient, where the arginine deiminase, obtained from Mycoplasma arginini or prepared by a genetic recombination technique, may be conjugated to an activated polymer to lower its immunogenecity and increase its life time. The pharmaceutical composition of the present invention exhibits an excellent inhibitory activity against angiogenesis.
摘要:
The present invention provides cationic lipids, methods for preparing the same, and delivery systems comprising the same. The present invention can provide cationic lipids which enhance the efficiency of intracellular or in vivo delivery of multiple-anionic target compounds such as drugs, anticancer agents, nucleic acids, etc., have no intracellular toxicity, but show increased stability, methods for preparing the same, and delivery systems comprising the same.
摘要:
The present invention relates to conjugates of biocompatible polymers and hGH, particularly PEG-hGH, where the activated biocompatible polymer is conjugated to a carboxyl group of hGH at a molar ratio of 1:1, methods of preparation, and related pharmaceutical compositions. The PEG-hGH conjugates have up to 20% of the activity of the native hGH while the in vivo half life is increased 10 fold. The PEG-hGH conjugates may be used therapeutically to treat growth retardation or growth failure, especially short stature in children, and conditions related to aging.
摘要:
The present invention relates to a conjugate of chitosan and polyamine polymer that is useful for transferring a desired gene medicine into cells, and a method for preparing the same. In particular, the present invention relates to a double conjugate that is prepared by 1 in king poly-L-arginine to low molecular weight chitosan or triple conjugate that is prepared by additionally linking polyethylene glycol (PEG) to the double conjugate, and a method for preparing the same. The chitosan based cationic polymer conjugate of the present invention forms a complex with negatively charged gene medicine such as plasmid DNA and small interfering RNA to efficiently transfer the desired gene medicine into cells with low cytotoxicity. Accordingly, the conjugate can be used as an effective delivery system for in vivo administration of gene medicine.
摘要:
The present invention relates to conjugates of biocompatible polymers and hGH, particularly PEG-hGH, where the activated biocompatible polymer is conjugated to a carboxyl group of hGH at a molar ratio of 2:1 or less, preferably 1:1, methods of preparation, and related pharmaceutical compositions. The PEG-hGH conjugates have up to 20% of the activity of the native hGH while the in vivo half life is increased 10 fold. The PEG-hGH conjugates may be used therapeutically to treat growth retardation or growth failure, especially short stature in children, and conditions related to aging.
摘要:
The present invention relates to conjugates of biocompatible polymers and biologically active molecules wherein the activated biocompatible polymer is conjugated to a carboxyl group of biologically active material at a molar ratio of 1:1 and methods of preparation thereof and a pharmaceutical composition comprising the same.
摘要:
The present invention relates to a pharmaceutical composition for the nasal transmucosal delivery of a biocompatible polymer-biologically active peptide conjugate. The pharmaceutical composition of the present invention increases the water solubility of peptide, which is sparingly soluble in water, improves its stability by protecting it from being degraded by proteases. As a result, the number of administrations of the drug and the side-effects induced by drug abuse are decreased. In addition, since the pharmaceutical composition of the present invention is delivered through the nasal cavity, it allows drug activity to be expressed in a short period of time and improves a bioavailability.