379 results about "Endothelial Growth Factors" patented technology

Described are conjugates formed by an antibody fragment covalently attached to a non-proteinaceous polymer, wherein the apparent size of the conjugate is at least about 500 kD. The conjugates exhibit substantially improved half-life, mean residence time, and/or clearance rate in circulation as compared to the underivatized parental antibody fragment. Also described are conjugates directed against human vascular endothelial growth factor (VEGF), human p185 receptor-like tyrosine kinase (HER2), human CD20, human CD18, human CD11a, human IgE, human apoptosis receptor-2 (Apo-2), human tumor necrosis factor-α (TNF-α), human tissue factor (TF), human α4β7 integrin, human GPIIb-IIIa integrin, human epidermal growth factor receptor (EGFR), human CD3, and human interleukin-2 receptor α-chain (TAC) for diagnostic and therapeutic applications.

The invention relates to a medicine of a bispecific monoclonal antibody, and especially to a medicine of a bispecific monoclonal antibody to human vascular endothelial growth factor (VEGF/VEGF-A) and platelet-derived growth factor receptor (PDGFR) for resistance to angiogenesis of tumor. The bispecific antibody to VEGF/PDGFR beta provided in the invention is characterized in that: a monoclonal antibody to VEGF is used as the base for the antibody and a single chain antibody to PDGFR beta is connected with the terminal of FC segment of the monoclonal antibody to VEGF to form the bispecific antibody to VEGF/PDGFR beta. The bispecific antibody related to in the invention is obtained by employing technical means like gene engineering and constructing antibody segments which identify VEGF and PDGFR beta in a same antibody molecule that can be specifically bound with the two antibody segments; the effect of the bispecific antibody on inhibiting angiogenesis of tumor issue is obviously superior to that of a single antibody to VEGF; and the bispecific antibody has good activity in resisting tumors.

An encased stent that discourages restenosis by having a homogenous endothelial cell lining along the inner wall of the stent. The endothelial cell lining may be coated on the stent before the stent is placed in the artery, or the endothelial cell lining may be grown after placement by several factors that encourage such growth and discourage restenosis. The endothelial cells to coat the stent may be genetically modified to enhance the growth of the endothelial cells into a homogeneous lining. The stent has a continuous lining in the form of a multi-layer polymer coating, including a conducting biocorrosion inhibiting layer and a continuous film of polyurethane coupled by a coupling agent to polyethylene glycol. Various drugs and cell factors may be incorporated into the lining, such as anti-thrombin, anti-inflammatory and anti-coagulant drugs, cell cycle inhibitors, and vascular endothelial growth factors.

The present disclosure relates to novel vascular endothelial growth factor receptor (VEGFR)-binding polypeptides and methods for using these polypeptides to inhibit biological activities mediated by vascular endothelial growth factors (VEGFs). The present disclosure also provides various improvements relating to single domain binding polypeptides.

The present invention relates to bispecific antibody against human vascular endothelial growth factor (VEGF/VEGF-A) and against human angiopoietin-2 (ANG-2) of human IgG1 or IgG4 subclass with mutations I253A, H310A, and H435A, methods for their production, pharmaceutical compositions containing said antibodies, and uses thereof.

The 121-amino acid isoform of vascular endothelial growth factor (VEGF₁₂₁) is linked by a flexible G4S tether to a cytotoxic molecule such as toxin gelonin or granzyme B and expressed as a soluble fusion protein. The VEGF₁₂, fusion protein exhibits significant anti-tumor vascular-ablative effects that inhibit the growth of primary tumors and inhibit metastatic spread and vascularization of metastases. The VEGF₁₂₁ fusion protein also target osteoclast precursor cells in vivo and inhibits osteoclastogenesis.

The present invention concerns methods and reagents useful in modulating vascular endothelial growth factor (VEGF, VEGF-A, VEGF-B, VEGF-C, VEGF-D) and/or vascular endothelial growth factor receptor (e.g., VEGFR1, VEGFR2 and/or VEGFr3) gene expression in a variety of applications, including use in therapeutic, diagnostic, target validation, and genomic discovery applications. Specifically, the invention relates to small nucleic acid molecules, such as short interfering nucleic acid (siNA), short interfering RNA (siRNA), double-stranded RNA (dsRNA), micro-RNA (mRNA), and short hairpin RNA (shRNA) molecules capable of mediating RNA interference (RNAi) against VEGF and/or VEGFr gene expression and/or activity. The small nucleic acid molecules are useful in the diagnosis and treatment of cancer, proliferative diseases, and any other disease or condition that responds to modulation of VEGF and/or VEGFr expression or activity.

The invention relates to a method for preparing a biodegradable polymer self-expansion type intravascular stent based on 3D printing technology.The method includes the specific steps of synthesizing polylactic acid-based shape-memory polyurethane/Fe304 nanocomposite material with good biocompatibility and biodegradability, and making the composite material into the intravascular stent through the Fused Deposition Modeling technology.In addition, in order to increase the blood vessel endothelium repair speed, sirolimus, heparin, endothelial growth factors or the like are selectively introduced to the stent surface through electrostatic spinning.A 'time'dimension is added for the shape-memory function of the base material, and combined with the 3D printing technology, a 4D forming concept is given to the stent.By means of the magnetocaloric effect of Fe304, shape recovery of the shape-memory polymer can be remotely excited, so that the intravascular stent expands automatically, balloon dilatation is not required during stent implantation, axial shortening during balloon dilatation and radial resilience during withdraw of the stent are avoided, and damage of blood vessels is reduced to a minimum level.In addition, the introduction of Fe304 solves the problem that a polymer stent has poor development.

The present invention discloses one new kind of humanized human vessel endothelium growth factor monoclonal antibody, the hybridoma cell for preparing the monoclonal antibody and the preparation process of the monoclonal antibody. The monoclonal antibody of the present invention can combine with VEGF antigen in high specificity, very high affinity and very low immunogenicity, and has obvious antitumor activity.

The invention relates to a degradable wound repair material and a preparation method thereof. The degradable wound repair material includes a matrix component and an auxiliary component, wherein the matrix component includes a protein ingredient, and the auxiliary component includes at least one of an antibacterial agent and an active factor. Specifically, the antibacterial agent is a synthetic antibacterial drug, an inorganic antibacterial agent, an organic antibacterial agent, or a natural antibacterial agent, and the active factor is at least one of the following active factors: an epidermal growth factor, an FGF vascular endothelial growth factor, a platelet-derived growth factor, a platelet activating factor, an insulin-like growth factor, a tumor necrosis factor, interleukin, colony stimulating factor-1, various bone morphogenetic proteins or transforming growth factors. By loading the antibacterial agent and active factor component on the basis of the matrix component, the degradable wound repair material provided by the invention can have biological activity on the basis of meeting degradability, can better promote wound repair, and has good anti-infection properties during use.

Methods and devices for the regulation of gene expression in tissue by applying an electric and/or electromagnetic field generated by specific and selective signals so as to treat diseases, conditions, and/or tissue. Gene expression is the up-regulation or down-regulation of the process whereby specific portions (genes) of the human genome (DNA) are transcribed into mRNA and subsequently translated into protein. Methods and devices are described for the regulation of Vascular Endothelial Growth Factor (VEGF) protein gene expression in endothelial cells of various targeted tissues via the capacitive coupling or inductive coupling (e.g., by electrodes or one or more coils or other field generating devices disposed with respect to the targeted cells) of specific and selective signals to the cells of these tissues, where the resultant electric and/or electromagnetic fields treat diseased or injured tissues. The resulting methods and devices are useful for the targeted treatment of peripheral vascular disease, cardiovascular disease, macular degeneration, wound healing, tendon and ligament healing, in preventing tumor growth or spread, and other conditions in which VEGF protein may be implicated.

Disclosed herein is a completely synthetic cell-free therapy based on peptide amphiphile nanostructures designed to mimic the activity of vascular endothelial growth factor (VEGF), one of the most potent angiogenic signaling proteins. The VEGF-mimetic filaments disclosed herein were found to induce phosphorylation of VEGF receptors and induce pro-angiogenic behavior in endothelial cells, indicated by an enhancement in proliferation, survival and migration in vitro.

The inventions provide compositions and methods for nucleic acid delivery comprising IIPMA conjugated to a polyamine. These compositions have the benefit of the steric hindrance of HPMA and the nucleic acid binding capability of a polyamine. Useful polyamines for this purpose include spermine, spermidine and their analogues, and DFMO. These polyamines have the ability not only to bind nucleic acids, but also have anti-cancer effects themselves. The compounds provided can also include ligand binding domains, such as vascular endothelial growth factors, somatostatin and somatostatin analogs, transferring, melanotropin, ApoE and ApoE peptides, von Willebrand's factor and von Willebrand's factor peptides, adenoviral fiber protein and adenoviral fiber protein peptides, PD 1 and PD 1 peptides, EGF and EGF peptides, RGD peptides, CCK peptides, antibody and antibody fragments, folate, pyridoxyl and sialyl-LewisX and chemical analogs. Methods for using these compositions to achieve a therapeutic effect, including for vaccination, are also provided.

This present invention discloses nucleic acid compositions and methods that are useful for treating ischemic conditions in animals, particularly in mammals such as humans. Specifically, the invention discloses nucleic acid molecules comprising or encoding a sequence that modulates the stability of a transcript from a vascular endothelial growth factor gene, as well as pharmaceutical compositions containing such molecules, which arm useful for modulating angiogenesis or vascularization, especially in methods for treating ischemic conditions.

The invention discloses a hair growth composition, wherein fullerene is dissolved in an acceptable external application carrier such as grease, and then the fullerene and other components are compounded through solubilizing or emulsifying to form the composition beneficial for hair and scalp. According to the present invention, the composition can achieve the long hair growth period of mice, shorten the hair rest period of mice, make hair lush, dense and black, significantly increase the number of hair follicles, and effectively promote the secretion of the endothelial growth factors of hair;and the composition is suitable for various problems of alopecia, hair loss, damage on hair and the like, can solve the problems of people with alopecia and hair loss, can provide effects of hair fixation, hair growth, hair development and the like within a short time, and has wide application prospect.

Disclosed herein are methods for diagnosing or treating pregnancy related hypertensive disorders that include the use of a polypeptide or a nucleic acid encoding a polypeptide selected from the following: follistatin related protein, interleukin 8, inhibin A, VEGF-C, angiogenin, beta fertilin, hypothetical protein, leukocyte associated Ig-like receptor secreted protein, erythroid differentiation protein, adipogenesis inhibitory factor, corticotropin releasing factor binding protein, alpha-1 anti-chymotrypsin, insulin-like growth factor binding protein-5, CD33L, cytokine receptor like factor 1, platelet derived endothelial growth factor, lysyl hydroxylase isoform 2, stanniocalcin precursor, secreted frizzled related protein, galectin-3, alpha defensin, ADAM-TS3, cholecystokinin precursor, interferon stimulated T-cell alpha chemoattractant precursor, azurocidin, sperminine oxidase, UDP glycosyltransferase 2 family polypeptide B28, neurotrophic tyrosine kinase receptor 2, neutral endopeptidase, CDC28 protein kinase regulatory subunit 2, beta glucosidase, lanosterol synthase, calcium/calmodulin-dependent serine protein kinase, estrogen receptor-alternatively spliced transcript H, chemokine (CX3C motif) receptor 1, tyrosinase-related protein 1, hydoxy-delta-5-steroid dehyrogenase, dihydropyramidinase-like-4, and cytochrome P450-family 11.

Procedures for the stabilization of vulnerable plaque can comprise identification of the vulnerable plaque and the delivery of a stabilization composition to the location of the vulnerable plaque. For example, the stabilization composition can be delivered to an isolated portion of the vessel with the vulnerable plaque and/or alternatively or additionally using a profusion balloon that delivers the stabilization composition at the vessel wall near the vulnerable plaque. Suitable stabilization compositions can comprise a collagen crosslinking agent, an elastin stabilization agent, VEGF or a combination thereof. Vascular endothelial growth factor (VEGF) can be used to encourage endothelialization of the vessel wall near the vulnerable plaque.

The present invention relates generally to the field of cancer therapy and prophylaxis. More particularly, the present invention provides growth factor antagonists which inhibit the growth of cancers including tumors and pre-cancerous tissue. Even more particularly, the present invention is directed to antagonists of vascular endothelial growth factor-B and their use to inhibit the growth of cancer including tumor tissue and pre-cancerous tissue.

The present invention involves the preparation of vascular endothelial growth actor (VEGF) variants which provide materials that are selective in respect to binding characteristics to the kinase domain region and the FMS-like tyrosine-kinase region, respectively KDR and FLT-1. The respective KDR and FLT-1 receptors are bound by corresponding domains within the VEGF compound domains. The variants hereof define those two binding regions and modify them so as to introduce changes that interrupt the binding to the respective domain. In this fashion the final biological characteristics of the VEGF molecule are selectively modified.