Abstract:
This invention identifies a biologically active group of peptide sequences from Type I repeat units of the extracellular matrix protein, human thrombospondin-1, identical or homologous to the sequence, KRFKQDGGWSHWSPWSSC (SEQ ID NO.30). The biological activities residing with the full sequences, portions thereof, and variants of the full or partial sequences are disclosed. The invention describes how biological activity may be enhanced by covalently linking these peptides to suitable carriers, preferably a branched, water-soluble polymer of low (or absent) toxicity and immunogenicity, such as polysucrose (Ficoll.TM.). The invention describes (1) a method for preparing such conjugates, (2) the use of the defined peptides or their conjugates in blocking or modifying the action on cellular processes of heparin (e.g., proliferation, adhesion, motility, extravasation and neovascularization), sulfatides, related sulfated glycoconjugates, fibronectin, and basic fibroblast growth factor, involving malignant cell lines and normal endothelial cells. Use of the defined peptides, analogs or peptidomimetics and their conjugates for treatment of metastatic tumors, breast carcinomas, melanomas, Kaposi's sarcomas, hemangiomas, diabetic retinopathies, and various pathological conditions dependent upon neovascularization is also disclosed.
Abstract translation:本发明鉴定了与序列KRFKQDGGWSHWSPWSSC(SEQ ID NO.30)相同或同源的细胞外基质蛋白I型重复单元的人类血小板反应蛋白-1的生物活性肽肽序列。 公开了其完整序列,部分和全部或部分序列的变体的生物活性。 本发明描述如何通过将这些肽共价连接到合适的载体,优选具有低(或不存在)毒性和免疫原性的支链水溶性聚合物如聚蔗糖(Ficoll TM)来增强生物活性。 本发明描述了(1)制备这种缀合物的方法,(2)使用所定义的肽或其缀合物来阻断或改变对肝素细胞过程的作用(例如增殖,粘附,运动,外渗和新生血管形成) 硫酸盐,相关的硫酸化糖缀合物,纤连蛋白和碱性成纤维细胞生长因子,涉及恶性细胞系和正常内皮细胞。 还公开了定义的肽,类似物或肽模拟物及其缀合物用于治疗转移性肿瘤,乳腺癌,黑素瘤,卡波西氏肉瘤,血管瘤,糖尿病视网膜病变以及依赖于新生血管形成的各种病理状况的用途。
Abstract:
A planar thin film magnetic head comprises an insulating substrate, a pair of insulating pedestals formed on the substrate, a top magnetic yoke having a central portion disposed over the substrate and having opposite ends supported on each of the pedestals. A conductor is provided over the top yoke central portion, and an insulating layer is disposed between the conductor and the top magnetic yoke. A bottom magnetic yoke is disposed over the conductor and has a gap in a central portion and opposite ends in contact with the top yoke ends.
Abstract:
A diagnostic kit for detecting the presence of microorganisms, comprising an insoluble substrate; and a carbohydrate receptor immobilized on the insoluble substrate, the carbohydrate receptor being capable of adsorbing microorganisms; and a labelled reagent useful for detecting the presence of microorganisms bound to the carbohydrate receptors and a method for detecting the presence of specified microorganisms in a sample, which comprises contacting a sample to be tested with carbohydrate receptors immobilized on an insoluble substrate; and determining the extent of binding of microorganisms in the sample to the carbohydrate receptors by use of a labelled reagent.
Abstract:
Provided herein are methods for preventing, ameliorating, and/or reducing tissue ischemia and/or tissue damage due to ischemia, increasing blood vessel diameter, blood flow and tissue perfusion in the presence of vascular disease including peripheral vascular disease, atherosclerotic vascular disease, coronary artery disease, stroke and influencing other conditions, by suppressing CD47 and/or blocking TSP1 and/or CD47 activity or interaction. Influencing the interaction of CD47-TSP1 in blood vessels allows for control of blood vessel diameter and blood flow, and permits modification of blood pressure and cardiac function. Under conditions of decreased blood flow, for instance through injury or atherosclerosis, blocking TSP1-CD47 interaction allows blood vessels to dilate and increases blood flow, tissue perfusion and tissue survival.
Abstract:
Provided herein are compositions and methods for preventing, ameliorating, and/or reducing tissue ischemia and/or tissue damage due to ischemia, increasing blood vessel diameter, blood flow and tissue perfusion in the presence of vascular disease including peripheral vascular disease, atherosclerotic vascular disease, coronary artery disease, stroke and influencing other conditions, by suppressing CD47 and/or blocking TSP1 and/or CD47 activity or interaction. Influencing the interaction of CD47-TSP1 in blood vessels allows for control of blood vessel diameter and blood flow, and permits modification of blood pressure and cardiac function. Under conditions of decreased blood flow, for instance through injury or atherosclerosis, blocking TSP1-CD47 interaction allows blood vessels to dilate and increases blood flow, tissue perfusion and tissue survival. This in turn reduces or prevents tissue necrosis and death. The therapeutics identified herein allow for precise regulation of blood flow to tissues and organs which need it, while substantially avoiding systemic complications. Methods and compositions described herein can be used to increase tissue survival under conditions of trauma and surgery, as well as conditions of chronic vascular disease. Also disclosed are methods for the treatment of elderly subjects using agents that affect TSP1 and CD47 and thereby affect tissue perfusion. Additionally, provided herein are compositions and methods for influencing blood coagulation, allowing for controlled increased or decreased blood clotting. Additionally, provided herein are compositions and methods for decreasing blood flow, as in the case of cancer through mimicking the effects of TSP1 and CD47 on blood vessel diameter and blood flow.
Abstract:
A method of forming and handling an array of micro-devices such as thin film devices that enables simultaneous mass handling and processing of these thin film devices. A plurality of micro-devices and links are simultaneously formed on a wafer, with the links interconnecting the micro-devices for maintaining a unitary array structure. A matrix of magnetic strips is then formed to impart added overall tensile strength to the array. The magnetic strips are secured to the links and form a planar support grid therewith. The array of micro-devices is then released from the wafer and lifted therefrom by means of a magnetic pick-up tool. Using the pick-up tool, the array is transferred onto a magnetic chuck which securely retains the array. Conductive wires are bonded to a row of micro-devices devices which are then separated from the array into individual micro-devices.
Abstract:
A carbohydrate receptor for pathogenic bacteria is a purified carbohydrate compound that is a member selected from the group consisting of fucosyl-asialo GM1, asialo GM1, and asialo GM2. The receptor can be included in a composition having a pharmaceutically acceptable carrier. The receptor may be used for purifying, detecting, or removing bacteria from diseased tissue. The structure of the receptor is N-acetylagalctosamine-beta-1-4-galactose-beta-1-4-glucose, abbreviated GalNAc.beta.1-4Gal.beta.1-4Glc. The receptor is present in human and animal tissues as complex molecule and can serve as the attachment site for bacterial infection. For example, fucosyl-asialo GM1, asialo GM1, and asialo GM2 are three biological molecules which occur in cell membranes and contain the carbohydrate receptor.
Abstract:
The invention is a carbohydrate receptor for Mycoplasma pneumoniae and Mycoplasma hominus and its use to detect mycoplasma in biological fluids and diseased tissue and cells. The receptor can be included in a composition having a pharmaceutically acceptable carrier. Methods are provided for purifying, detecting, or removing mycoplasma from diseased tissue or fluids. The receptor includes sulfatides, dextran sulfate, sialyloligosaccharides, and mixtures thereof.
Abstract:
Provided herein are methods for preventing, ameliorating, and/or reducing tissue ischemia and/or tissue damage due to ischemia, increasing blood vessel diameter, blood flow and tissue perfusion in the presence of vascular disease including peripheral vascular disease, atherosclerotic vascular disease, coronary artery disease, stroke and influencing other conditions, by suppressing CD47 and/or blocking TSP1 and/or CD47 activity or interaction. Influencing the interaction of CD47-TSP1 in blood vessels allows for control of blood vessel diameter and blood flow, and permits modification of blood pressure and cardiac function. Under conditions of decreased blood flow, for instance through injury or atherosclerosis, blocking TSP1-CD47 interaction allows blood vessels to dilate and increases blood flow, tissue perfusion and tissue survival.
Abstract:
Provided herein are compositions for preventing, ameliorating, and/or reducing tissue ischemia and/or tissue damage due to ischemia, increasing blood vessel diameter, blood flow and tissue perfusion in the presence of vascular disease including peripheral vascular disease, atherosclerotic vascular disease, coronary artery disease, stroke and influencing other conditions, by suppressing CD47 and/or blocking TSP1 and/or CD47 activity or interaction. Influencing the interaction of CD47-TSP1 in blood vessels allows for control of blood vessel diameter and blood flow, and permits modification of blood pressure and cardiac function. Under conditions of decreased blood flow, for instance through injury or atherosclerosis, blocking TSP1-CD47 interaction allows blood vessels to dilate and increases blood flow, tissue perfusion and tissue survival.