74 results about "PIGMENT EPITHELIUM-DERIVED FACTOR" patented technology

The invention provides PEDF peptides which retain the biological activity of full-length PEDF. Fusion proteins comprising a PEDF peptide are also provided. The invention further provides a codon-optimized PEDF coding sequence and method of expressing it in bacteria. Compositions, methods of use and kits are also provided.

Disclosed are methods for the use of therapeutic polypeptide-encoding polynucleotides in the creation of transformed host cells and transgenic animals is disclosed. In particular, the use of recombinant adeno-associated viral (rAAV) vector compositions comprising polynucleotide sequences that express one or more mammalian PEDF or anti-angiogenesis polypeptides is described. In particular, the invention provides gene therapy methods for the prevention, long-term treatment and / or amelioration of symptoms of a variety of conditions and disorders in a mammalian eye, including, for example blindness, loss of vision, retinal degeneration, macular degeneration, and related disorders resulting from retinal or choroidal neovascularization in affected individuals.

The present invention is directed to a method of inhibiting at least one of vascular leakage, inflammation and fibrosis in an animal by administering to the animal a vascular leakage inhibiting amount of a composition, wherein at a substantially higher amount the composition is effective in inhibiting angiogenesis, and wherein the anti-angiogenic activity of the composition is separate from the vascular leakage inhibiting activity of the composition. The animal experiencing at least one of vascular leakage, inflammation and fibrosis has a disease selected from the group consisting of diabetes, chronic inflammation, brain edema, arthritis, uvietis, macular edema, cancer, hyperglycemia, a kidney inflammatory disease, a disorder resulting in kidney fibrosis, a disorder of the kidney resulting in proteinuria, and combinations thereof. The composition capable of inhibiting at least one of vascular leakage, inflammation and fibrosis is selected from the group consisting of angiostatin, fragments of angiostatin, analogs or derivatives of angiostatin, kringle 5 of plasminogen, fragments of kringle 5 of plasminogen, analogs or derivatives of kringle 5 of plasminogen, pigment epithelium-derived factor, fragments of pigment epithelium-derived factor, analogs or derivatives of pigment epithelium-derived factor and combinations thereof.

The present invention relates to methods and compositions for modulating angiogenesis. In particular, the present invention relates to Pigment Epithelial-derived Factor (PEDF) fragments for use in modulating angiogenesis and treating angiogenesis mediated disease.

Disclosed herein is a synthetic peptide, which has an amino acid sequence that has 20-39 amino acid residues. The synthetic peptide has at least 80% amino acid sequence identity to SEQ ID NO: 1, and includes at least 20 consecutive residues that has at least 90% amino acid sequence identity to residues 11-30 of SEQ ID NO: 1. Also disclosed herein are compositions containing the synthetic peptide and applications thereof. According to various embodiments of the present disclosure, the synthetic peptide is useful in promoting stem cells proliferation or wound healing.

Embodiments of the invention provides methods, devices and kits for determining the likelihood of an individual having an active fibrotic condition and / or early diagnosis, and subsequently prognosis evaluation of an individual having an active fibrotic condition such as systemic sclerosis (SSc) and / or nephrogenic systemic fibrosis (NSF) by measuring the levels of several biomarkers: α-enolase (ENO1), reticulocalbin 3 (RCN-3), alpha smooth muscle actin (α-SMA), reticulocalbin 1 (RCN-1) and pigment epithelium-derived factor (PEDF) in the individual.

The present invention relates to methods and compositions for modulating angiogenesis. In particular, the present invention relates to Pigment Epithelial-derived Factor (PEDF) fragments for use in modulating angiogenesis and treating angiogenesis mediated disease.

The invention relates to application of protein and proteome in preparation of a liver cirrhosis diagnostic reagent. The protein comprises Lumican, Tetranectin, Pro-platelet basic protein (PBP), Pigment epithelium-derived factor (PEDF), Insulin-like growth factor binding protein 3 (IGFbp-3), Sex hormone-binding globulin (SHBG), Thioredoxin and composition of parts in the liver cirrhosis diagnostic reagent. Multiple proteins related with health and disease states are identified and evaluated in large range by adopting a proteome technology, the screened biomarkers for identifying hepatitis and liver fibrosis are used for predicting the degree of hepatitis and liver fibrosis and can be used for preparing a kit for diagnosing liver cirrhosis and liver cirrhosis level, and the protein markers identify the sensitivity of liver cirrhosis and degree thereof; and by combining the optimal conditions of various protein markers, the sensitivity can reach 89 percent, the specificity reaches over 90 percent, and the sensitivity and the specificity are higher than those of any known detection method.

The invention discloses a use of a derived polypeptide series of pigment epithelium derived factors in ischemic myocardium protection. The polypeptide is derived from the pigment epithelium derived factors, and every amino acid sequence in the polypeptide includes at least eighteen continuous amino acid residues. The PEDF derived functional peptide has good function advantages, and has remarkablecardiac muscle tissue capillary tube stabilization, vascular leakage prevention, myocardial cell protection and cardiac muscle tissue inflammation prevention effects.

Polypeptides of pigment epithelium derived factor (PEDF) isolated from human plasma and fragments thereof, methods for preparing them, pharmaceutical compositions containing them and methods for diagnosis and treatment of angiogenesis-related diseases using such polypeptides.

The invention discloses a compound containing pigment epidermal derived factors, wherein the pigment epidermal derived factors are coupled with polyvinyl alcohol compound or Fc fragments of immunoglobulin. The invention also discloses a method for preparing the compound containing the pigment epidermal derived factors and application of the compound containing pigment epidermal derived factors in preparing medicines for preventing, diagnosing or treating tumor and abnormal hyperplasia disease of novel vessels. The compound containing the pigment epidermal derived factors can obviously prolong the intravital half-life period of the pigment epidermal derived factors and simultaneously has the same activity for inhibiting the growth of the novel vessels and the growth of tumor with unmodified pigment epidermal derived factors and even higher activity than the unmodified pigment epidermal derived factors.

The present invention relates to anti-angiogenic variants of pigment epithelium derived factor (PEDF) comprising a plurality of altered phosphorylation sites, polynucleotides encoding same and uses thereof. In particular, the PEDF variants of the present invention provide superior anti-angiogenic activity and high neurotrophic activity and are useful in treating diseases associated with neovascularization and with neurodegenerative conditions.

It is intended to provide a novel therapeutic method for a disease with apoptotic degeneration in eye tissue cells such as retinal pigment degeneration. Attention was paid on the concomitant administration of two neurotrophic factors: pigment epithelium-derived factor (PEDF) and fibroblast growth factor 2 (FGF2). The sites of actions are considered to be different between PEDF and FGF2. An SIV-PEDF vector and an SIV-FGF2 vector were constructed and administered to the subretinal space of an RCS rat, which is a disease model of retinal pigment degeneration, and their effects were evaluated. At 4 weeks, 8 weeks and 12 weeks after the administration of the vectors, a significantly higher visual cell protection effect was obtained in a group with concomitant administration than in a group with sole administration. Further, the functional evaluation of retina was carried out by electroretinogram and an effect in the group with concomitant administration was significantly higher than in the group with sole administration. From the above results, it was found for the first time that the concomitant administration of PEDF and FGF2 has higher effects in the treatment of retinal pigment degeneration than conventional methods.

The present invention is directed to a method of prophylactically or therapeutically treating an animal for at least one ocular-related disorder, e.g., ocular neovascularization or age-related macular degeneration. The method comprises contacting an ocular cell with an expression vector comprising a nucleic acid sequence encoding an inhibitor of angiogenesis and the same or different nucleic acid sequence encoding a neurotrophic agent. The method also can comprise contacting an ocular cell with different expression vectors, each comprising a nucleic acid sequence encoding an inhibitor of angiogenesis and / or a nucleic acid sequence encoding a neurotrophic agent. In addition, the present invention provides a viral vector comprising a nucleic acid sequence encoding pigment epithelium-derived factor (PEDF) or a therapeutic fragment thereof.

The invention relates to a device for delivery of pigment epithelium derived factor (PEDF) to the eye utilizing encapsulated PEDF-secreting cells and related methods for the treatment and prevention of ophthalmic diseases and disorders.

The invention is directed to a method of prophylactically or therapeutically treating an animal for vascular leakage in an eye. The method comprises administering to an animal in need thereof an expression vector comprising a nucleic acid sequence encoding pigment epithelium-derived factor (PEDF) such that vascular leakage in the eye of the animal is treated prophylactically or therapeutically. The invention also provides a method of prophylactically or therapeutically treating an animal for vascular leakage in an eye. The method comprises periocularly administering to an animal in need thereof PEDF such that vascular leakage of the animal is treated prophylactically or therapeutically. The invention also provides a method of prophylactically or therapeutically treating an animal for non-diabetic vascular leakage in an eye. The method comprises administering to an animal in need thereof PEDF such that non-diabetic vascular leakage in the eye is treated prophylactically or therapeutically.

The present invention provides a method of inhibiting angiogenesis within a tissue by providing exogenous PEDF to cells associated with the tissue. The presence of exogenous PEDF inhibits angiogenesis within the tissue, in part by interfering with the ability of vascular endothelia to expand within the tissue. The invention also provides a method for determining the severity of a tumor be assaying for the presence of PEDF within the tumor. To facilitate the inventive methods, the present invention provides pharmaceutical compositions including sources of PEDF.

A method of treating or preventing an ovary-related syndrome associated with infertility in a subject in need thereof is provided. The method comprising administering to the subject a pharmaceutical composition comprising an active ingredient consisting of pigment epithelium-derived factor (PEDF) and a pharmaceutically acceptable carrier, thereby treating or preventing the ovary-related syndrome associated with infertility in the subject.

The present invention provides a method of inhibiting angiogenesis within a tissue by providing exogenous PEDF to cells associated with the tissue. The presence of exogenous PEDF inhibits angiogenesis within the tissue, in part by interfering with the ability of vascular endothelia to expand within the tissue. The invention also provides a method for determining the severity of a tumor be assaying for the presence of PEDF within the tumor. To facilitate the inventive methods, the present invention provides pharmaceutical compositions including sources of PEDF.

A method of treating or preventing an ovary-related syndrome associated with infertility in a subject in need thereof is provided. The method comprising administering to the subject a pharmaceutical composition comprising an active ingredient consisting of pigment epithelium-derived factor (PEDF) and a pharmaceutically acceptable carrier, thereby treating or preventing the ovary-related syndrome associated with infertility in the subject.

The invention provides a novel method of treating a diseases associated with apoptotic degeneration in an ocular cell tissue by effectively administering pigment epithelium-derived factor (PEDF). Attentions are focused on PEDF as a novel means of preventing neural ganglion death which is the final pathological stage in glaucoma. Further, attentions are paid to an SIV vector as an effective method of delivering PEDF and an SIV-PEDF vector is constructed. When the SIV-PEDF vector is subretinally administered to an ischemic reperfusion model and an NMDA-induced model, it is observed that neural ganglion death is remarkably inhibited. Thus, it is found out that the SIV-PEDF vector is efficacious as a drug for treating a diseases associated with apoptotic degeneration in an ocular cell tissue such as glaucoma.

The invention discloses application of PEDF gene in treating diabetic myocardial damage. According to the invention, the relationship between the PEDF gene and diabetic myocardial damage is determinedfor the first time, and PEDF gene knockout can lead to a rise in weight and blood sugar, cardiomyocyte hypertrophy, myocardial fibrosis and cardiac dysfunction. It shows that the PEDF gene's functionin diabetic myocardial damage is mainly reflected in the PEDF's effects of improving cardiomyocyte hypertrophy and myocardial fibrosis and improving cardiac function. in allusion to the above functions of the PEDF gene, the PEDF can be used as a medicine for preventing, alleviating or / and treating diabetic myocardial damage; the PEDF can be used as a drug target for screening a medicine for preventing, alleviating or / and treating diabetic myocardial damage; and the PEDF also can be used as a target gene in gene therapy for designing and preparing a medicine for preventing, alleviating or / andtreating diabetic myocardial damage and / or a biological preparation.

The present invention provides novel methods for treating diseases associated with apoptotic degeneration in ocular tissue cells by effective administration of pigment epithelium derived factor (PEDF). The present inventors studied PEDF as a means to prevent ganglion cell death, the final pathology of glaucoma. The present invention is particularly focused on SIV vectors for effective methods for delivering PEDF, and constructed an SIV-PEDF vector. When the SIV-PEDF vector was administered subretinally to an ischemia reperfusion model and NMDA-induced model, a significant suppression effect on ganglion cell death was observed. The present inventors therefore discovered that the SIV-PEDF vector is an effective pharmaceutical agent for treating diseases associated with apoptotic degeneration in ocular tissue cells, such as glaucoma.

The present invention relates to a purified retinal pigmented epithelium derived neurotrophic factor composition and a method for purifying such a retinal pigmented epithelium neurotrophic factor. The present invention also relates to a recombinant DNA molecule comprising a gene encoding a retinal pigmented epithelium derived neurotrophic factor having the DNA sequence or the amino acid sequence in SEQ ID NO:1 and to an organism transformed with the recombinant DNA molecule. In addition, the present invention relates to a method of treating tumors, ocular diseases, nerve injuries, and conditions resulting from the activity of serine proteases, which comprises administering PEDF.

The present disclosure provides for compositions for the treatment of neurodegenerative diseases comprising one or more isolated phosphate complexes of platinum and methods of uses thereof for treating neurodegenerative diseases including amyotrophic lateral sclerosis, Alzheimer's disease, stroke, epilepsy, Parkinsons, Huntington's disease and diabetes associated peripheral neuropathy The present disclosure is also directed towards an anti-angiogenic composition useful for inhibiting angiogenesis related to age-related macular degeneration, diabetic retinopathy and tumor-associated angiogenesis. An embodiment of the present disclosure is also directed towards a method for modulating the expression of Pigment Epithelial Derived Factor (PEDF) gene in an individual in need thereof. The present disclosure also provides for a method of reducing neurotoxicity associated with the administration of a cancer therapy in a subject in need thereof comprising administering to the individual in need thereof a therapeutically effective amount of at least one or more isolated monomeric phosphate complexes of platinum described herein.

A method for promoting muscle or tendon regeneration, and / or arteriogenesis in a subject includes administering to the subject a pharmaceutical composition that contains a synthetic peptide, which has an amino acid sequence that has 20-39 amino acid residues and has at least 20 consecutive residues that has at least 90% amino acid sequence identity to residues 11-30 of SEQ ID NO: 1. The synthetic peptide may have the amino acid sequence of SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 8, or SEQ ID NO: 9.

The present invention relates to methods and compositions for modulating angiogenesis. In particular, the present invention relates to Pigment Epithelial-derived Factor (PEDF) fragments for use in modulating angiogenesis and treating angiogenesis mediated disease.

The invention provides compositions and methods relating to bioactive peptide analogs of PEDF.