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58 results about "Angiogenesis Inhibition" patented technology

Highly effective polypeptide for inhibiting angiogenesis, physical chemistry modifying method and application thereof

The invention relates to a high-performance angiogenesis inhibitor and a production method, which belongs to the field of the biological engineering pharmaceutical technology or protein polypeptide drugs. The invention designs a high-performance angiogenesis inhibitor RGD-ED with integrin compatibility, the inhibitor contains angiogenesis inhibition polypeptide isoleucine-valine-arginine-arginine-alanine-aspartate-arginine-alanine-alanine-valine-proline, and one or two ends of the inhibitor are respectively connected with polypeptides containing arginine-glycin-aspartate sequence. The RGD-ED of the invention can be synthesized. By the method of genetic engineering, the invention also expresses one of RGD-Eds in escherichia coli or other eukaryotic cells, and the RGD-ED is obtained by carrying out the separation, dissolution and renaturation of inclusion body protein and separation and purification by ion exchange chromatography. All the polypeptide sequences of the invention are modified by Polyethylene Glycol (PEG), heparin, dextran, polyvinylpyrrolidone (PVP), polyglycol-poly (amino acid) copolymer, palmitic acid, colominic acid and liposome, which includes liposome (REV), drying liposomal (DRV) and multivesicular liposome (Mvl). In vivo and in vitro experiments, the synthetic polypeptide sequence, product of genetic engineering and modified product of the invention can notably increase the effects of inhibiting the growth of endothelial cells, inhibiting angiogenesis and resisting tumor of the present angiogenesis inhibitors, and moreover, the high-performance angiogenesis inhibitor can be used as a drug curing solid tumors and rheumatoid arthritis.
Owner:CHINA PHARM UNIV

Tat PTD-Endostatin recombination protein, preparation method and application thereof

The present invention discloses a Tat PTD-Endostatin recombination protein, which is a fusion protein comprising a protein transduction domain of human immunodeficiency virus (HIV) transactivation transduction protein Tat and human endostatin, wherein the amino acid sequence of the protein transduction domain of the HIV transactivation transduction protein Tat is represented by SEQ ID NO.1, and the amino acid sequence of the human endostatin is represented by SEQ ID NO.2. The protein of the present invention has the following advantages that: the function of the endostatin can be maintained, wherein the function of the endostatin is that the endostatin can inhibit angiogenesis; the protein has advantages of high transduction efficiency, easy blood-brain barrier crossing, and easy blood-ocular barrier crossing; the protein can overcome the limitation of the poor membrane spanning effect of the endostatin and play the angiogenesis inhibition effect well; the protein can be used for treatments of various diseases caused by angiogenesis, including ocular vascular proliferative diseases and various tumors, such as diabetes retinopathy, non-small cell lung cancer, and the like.
Owner:SHANDONG UNIV

Chemokine derived peptides and uses for chronic wound and angiogenesis inhibition treatments

Disclosed are peptides having activity against receptor CXCR3 are disclosed that exhibit activity in preventing the formation of new vessels and activity in mediating the dissociation of newly-formed vessels and resolving of wounds in the later stages of wound healing. Preferred peptides are derived from the α-helix portion IP-10 (CXCL10) or from IP-9 (CXCL11), are nontoxic, and smaller than naturally occurring peptides, making them useful in therapies against diseases or disease states marked by unwanted angiogenesis, including tumorogenic diseases such as cancers, and in healing of chronic wounds.
Owner:THE GOVERNMENT OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE DEPT OF VETERANS AFFAIRS +1

Applications of artificially synthesized gene-derived recombinant protein rLj-RGD4 in anti-tumor drugs

The invention discloses'applications of an artificially synthesized gene-derived recombinant protein rLj-RGD4 in anti-tumor drugs', belonging to the field of biotechnology and relating to gene cloning and protein expression of an artificially synthesized gene lj-rgd4, dose-dependent potent angiogenesis inhibition and tumor inhibition functions of the recombinant protein rLj-RGD4, and applications of the recombinant protein in the antitumor drugs as an angiogenesis inhibitor.
Owner:LIAONING NORMAL UNIVERSITY

Intravenous injection drug-loading targeting nano-carrier for RA (Rheumatoid Arthritis) and preparation method of drug-loading targeting nano-carrier

The invention provides an intravenous injection drug-loading targeting nano-carrier for RA (Rheumatoid Arthritis) and a preparation method of the drug-loading targeting nano-carrier. According to the technical scheme, for final effector cells FLSs of RA, PCADK with a pH controlled release function is used as a main skeleton; PEI is added to modify and wrap NK4 to improve nucleic acid stability; then, VIP is added to carry out active targeting regulation and control; a novel multifunctional drug-loading targeting nano-carrier for intravenous injection is constructed step by step; acid sensitive release is responded; therefore, the FLSs can be efficiently delivered to the RA focus; and the optimal anti-RA curative effects of extracellular inhibition of angiogenesis, intracellular killing of malignant hyperplasia FLSs and remodeling of the immune microenvironment of the RA focus are achieved. According to the invention, the PCADK composite nanomaterial is prepared based on an emulsion method; and experimental results show that: the particle size of the obtained PCADK composite nanomaterial is at the nanometer level, the Zeta potential is particles with positive electricity, the morphology is good, and the PCADK composite nanomaterial is expected to serve as a brand new targeted drug to be used for clinical treatment of RA.
Owner:福州市第一医院

Halogen or nitrogen-containing group substituted bibenzyl analog, preparation method and uses thereof

The present invention discloses a halogen or nitrogen-containing group substituted bibenzyl analog or a pharmaceutically acceptable salt, a hydrate thereof, wherein the halogen or nitrogen-containing group substituted bibenzyl analog is represented by a formula I, and A is halogen or nitrogen-containing group substituted phenyl or a 5-membered or 6-membered unsaturated nitrogen-containing heterocyclic ring containing 1-2 N atoms. The present invention further discloses a preparation method of the halogen or nitrogen-containing group substituted bibenzyl analog, and applications of the halogen or nitrogen-containing group substituted bibenzyl analog or the pharmaceutically acceptable salt and the hydrate thereof in preparation of tumor treating drugs and angiogenesis inhibition drugs. According to the present invention, the novel-structure bibenzyl analog is synthesized through the seven-step reaction, such that the reaction steps are simple, the conditions are mild, the yield is high, and the total yield is 32-51%; the bibenzyl analog provides different degrees of activities in preparation of tumor resistance and angiogenesis inhibition; and the important significance is provided for preparation of the tumor inhibition drugs and the angiogenesis inhibition drugs. The formula I is defined in the specification.
Owner:CHINA PHARM UNIV
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