30 results about "Integrin ligand" patented technology

The present invention provides α4β1 integrin ligands that display high binding affinity, specificity, and stability. The ligands comprise a peptide having n independently selected amino acids, wherein at least one amino acid is an unnatural amino acid or a D-amino acid, and wherein n is an integer of from 3 to 20. Methods are provided for administering the ligands for treating cancer, inflammatory diseases, and autoimmune diseases. Also provided are methods for administering the ligands for imaging a tumor, organ, or tissue in a subject.

The present invention provides α4β1 integrin ligands that display high binding affinity, specificity, and stability. The ligands comprise a peptide having n independently selected amino acids, wherein at least one amino acid is an unnatural amino acid or a D-amino acid, and wherein n is an integer of from 3 to 20. Methods are provided for administering the ligands for treating cancer, inflammatory diseases, and autoimmune diseases. Also provided are methods for administering the ligands for imaging a tumor, organ, or tissue in a subject.

The invention relates to a combination therapy for the treatment of tumors and tumor metastases comprising administration of integrin ligands, preferably integrin antagonists, together with co-therapeutic agents or therapy forms that have synergistic efficacy when administered consecutively with said ligands, such as chemotherapeutic agents and or radiation therapy. The therapy results in a synergistic potential increase of the inhibition effect of each individual therapeutic on tumor cell proliferation, yielding more effective treatment than found by administering an individual component alone, concurrently or not in the dosage regime of the present invention.

The invention relates to a combination therapy for the treatment of tumors and tumor metastases comprising administration of integrin ligands, preferably integrin antagonists, together with co-therapeutic agents or therapy forms that have synergistic efficacy when administered consecutively with said ligands, such as chemotherapeutic agents and or radiation therapy. The therapy results in a synergistic potential increase of the inhibition effect of each individual therapeutic on tumor cell proliferation, yielding more effective treatment than found by administering an individual component alone, concurrently or not in the dosage regime of the present invention.

Provided is a fusion protein comprising a tumor necrosis factor related apoptosis inducing ligand (TRAIL), integrin ligands of αVβ3 and αVβ5 and a linking peptide. Also provided are the expression method and simple separation and purification process for the production of the fusion protein which is soluble and has high content of the polymer, and use of the fusion protein for the manufacturing of a medicament for the treatment of tumor. The fusion protein has good tumor tissue targeting property, significantly enhanced anti-tumor effect, which can also reduce the dose of the needed protein for the target treatment effect, improve the bioavailability, reduce the treatment cost, decrease and overcome the potential toxic and side effects of the tumor necrosis factor-related apoptosis inducing ligand.

The invention relates to a combination therapy for the treatment of tumors and tumor metastases comprising administration of integrin ligands, preferably integrin antagonists, together with co-therapeutic agents or therapy forms that have synergistic efficacy when administered together with said ligands, such as chemotherapeutic agents and / or radiation therapy, in isolated organ perfusion. The therapy results in a synergistic potential increase of the inhibition effect of each individual therapeutic on tumor cell proliferation, yielding more effective treatment than found by administering an individual component alone.

The invention discloses an application of a blocker with integrin affinity and bonding capability and MMPs (matrix metalloproteinases) inhibiting capability, and belongs to the field of medicines. The application comprises a polypeptide I (Arg-Gly-Asp-Gly-Gly-Gly-Gly-Pro-(D-Pyr)-(D-Cys)-Bip-Arg-Gly-Glu) and a polypeptide II (Pro-(D-Pyr)-(D-Cys)-Bip-Arg-Gly-Glu-Gly-Gly-Gly-Gly-Arg-Gly-Asp), wherein the polypeptide I is modified with an integrin ligand sequence (Arg-Gly-Asp-Gly-Gly-Gly-Gly); two types of blood vessel inhibiting polypeptides with integrin affinity and bonding capability are formed. The application has the advantages that because of the targeting property of an RGD (arginine-glycin-aspartate) sequence, the polypeptides can be targeted to the new blood vessel endothelium of the RA (rheumatoid arthritis) pannus forming process, the forming of MMPs (matrix metalloproteinases) and the new blood vessel can be inhibited, and the effect of preventing or treating the blood vessel and inflammatory diseases are realized; the polypeptides can be applied to the treatment of the blood vessel and inflammatory diseases, such as arthritis, inflammation, tumors, and eye diseases.

The present invention discloses an integrin blocking agent polypeptide and applications of the same in preparation of drugs for treatment of neovascular eye diseases, and belongs to the field of medicine. The integrin blocking agent polypeptide comprises a polypeptide I Arg-Gly-Asp-Gly-Gly-Gly-Gly-Phe- Gln-Pro-Val-Leu-His-Leu-Val-Ala-Leu-Asn-Ser-Pro-Leu-Ser-Gly-Gly-Met-Arg-Gly-Ile-Arg-Gly-Ala-Asp-Phe-Gln-Cys-Phe-Gln-Gln-Ala-Arg-Ala-Val-Gly-Leu-Ala-Gly-Thr-Phe-Arg-Ala and a polypeptide II Phe-Gln-Pro-Val-Leu-His-Leu-Val-Ala-Leu-Asn-Ser-Pro-Leu-Ser-Gly-Gly-Met-Arg-Gly-Ile-Arg-Gly-Ala-Asp-Phe-Gln-Cys-Phe-Gln-Gln-Ala-Arg-Al a-Val-Gly-Leu-Ala-Gly-Thr-Phe-Arg-Ala-Gly-Gly-Gly-Gly-Arg-Gly-Asp, wherein the polypeptide I is modified with the integrin ligand sequence (Arg-Gly-Asp-Gly-Gly-Gly-Gly). The integrin blocking agent polypeptide can be used for treatments of iridal neovascular eye diseases, choroidal neovascular eye diseases, retinal neovascular eye diseases or corneal neovascular eye diseases and other neovascular eye diseases.

The invention belongs to the technology field of a tumor targeting and slow release drug delivery system, and relates to a drug-carrying tumor targeting cationic polymer. The surface of the cationic polymer is modified by linear chain or cyclic polypeptide containing RGD sequence to obtain a series of cationic polymers. The obtained cationic polymers can be used for the preparation of anticancer drug-carrying nano-particle drug-delivery system. The nano-particle slow release in combination with tumor targeting effect of RGD increases accumulation of the anticancer drug in tumor part and inhibits tumor growth by breaking tumor new vessels to improve drug curative effect.

The present invention relates to integrin ligand modified long circulation liposome carrying anticarcinogen for injection, and is especially one kind of injected anticarcinogen carrying targeting liposome administration system. The efficient administration system is obtained through modifying the surface of liposome simultaneously with both polyethylene glycol and integrin containing arginine-glycine-asparagic acid sequence or RGD analogue.

The invention relates to a combination therapy for the treatment of tumors and tumor metastases comprising administration of integrin ligands, preferably integrin antagonists, together with co-therapeutic agents or therapy forms that have synergistic efficacy when administered consecutively with said ligands, such as chemotherapeutic agents and or radiation therapy. The therapy results in a synergistic potential increase of the inhibition effect of each individual therapeutic on tumor cell proliferation, yielding more effective treatment than found by administering an individual component alone, concurrently or not in the dosage regime of the present invention.