Abstract:
Antithrombotic materials and methods are provided for the treatment of thrombotic disorders, in which therapeutically effective amounts of BPI protein products are administered.
Abstract:
Activation of plasminogen to plasma is inhibited by preventing the binding of a receptor binding form of urokinase-type plasminogen activator to a urokinase-type plasminogen activator receptor in a mammal, thereby preventing the urokinase-type plasminogen activator from converting plasminogen into plasmin. DNA fragments which encode for soluble, active fragments of the urokinase-type plasminogen activator are provided.
Abstract:
Antithrombotic materials and methods are provided for the treatment of thrombotic disorders, in which therapeutically effective amounts of BPI protein products are administered.
Abstract:
The invention provides a method for the solubilization and/or stabilization of polypeptides, especially proteins, using a cyclodextrin selected from the group consisting of hydroxypropyl, hydroxyethyl, glucosyl, maltosyl and maltotriosyl derivatives of .beta.- and .gamma.-cyclodextrin. Solubilized and/or stabilized compositions comprising a polypeptide, especially a protein, and the selected cyclodextrin are also described.
Abstract:
A compound that is useful for inhibiting FXIIIa catalysis of fibrin cross-linking, and related pharmaceutical compositions and methods, are disclosed. The compound and compositions may be advantageously used to enhance fibrinolysis and resolution of blood clots.
Abstract:
A novel composition, P.sup.1, P.sup.4 -dithio-P.sup.2, P.sup.3 -monochloromethylene 5', 5'"-diadenosine P.sup.1, P.sup.4 -tetraphosphate, is disclosed. The composition is useful as a therapeutic agent for prevention of thrombosis and for modulating a thrombolytic effect in a mammal.
Abstract:
In accordance with the present invention, a method is provided for treating tumors. More particularly, the present invention relates to a method for treating tumors comprising injecting a solution of certain ethylene oxide-propylene oxide surface-active copolymers and a solution containing chemotherapeutic agents into a human or animal with a tumor. The solutions can be injected simultaneously or separately at different times. In addition, the surface-active copolymer and the chemotherapeutic agent can be in the same solution. The surface-active copolymer can be an ethylene oxide-propylene oxide condensation product with the following general formula:HO(C.sub.2 H.sub.4 O).sub.b (C.sub.3 H.sub.6 O).sub.a (O.sub.2 H.sub.4 O).sub.b Hwherein a is an integer such that the hydrophobe represented by (C.sub.3 H.sub.6 O) has a molecular weight of approximately 950 to 4000 daltons, preferably approximately 1200 to 3500 daltons, and b is an integer such that the hydrophile portion represented by (C.sub.2 H.sub.4 O) constitutes approximately 50% to 90% by weight of the compound.
Abstract translation:根据本发明,提供了一种治疗肿瘤的方法。 更具体地,本发明涉及一种治疗肿瘤的方法,包括将某些环氧乙烷 - 环氧丙烷表面活性共聚物的溶液和含有化学治疗剂的溶液注射到具有肿瘤的人或动物中。 溶液可以在不同时间同时或分开注射。 此外,表面活性共聚物和化学治疗剂可以在相同的溶液中。 表面活性共聚物可以是具有以下通式的环氧乙烷 - 环氧丙烷缩合产物:HO(C 2 H 4 O)b(C 3 H 6 O)a(O 2 H 4 O)b H其中a是(C 3 H 6 O)表示的疏水基具有 分子量为约950至4000道尔顿,优选约1200至3500道尔顿,b为使(C 2 H 4 O)表示的亲水部分构成化合物的约50重量%至90重量%的整数。
Abstract:
This invention provides an improved method for enhancing the activity of thrombolytic agents, including t-PA, scu-PA, tcu-PA, streptokinase, acylated plasminogen-streptokinase activator complex (APSAC), mixtures of these, and other activators of plasminogen. The enhancement method comprises supplementation of plasma plasminogen levels with deglycosylated forms of glu- and lys-plasminogen. Deglycosylated plasminogen refers herein to glu- or lys-plasminogen 2 having a single oligosaccharide chain at Thr.sub.345, plasminogens having a single oligosaccharide chain at Asn.sub.288, and unglycosylated forms of plasminogen. The work described herein shows that a less glycosylated form of plasminogen (glu-plasminogen 2) has a higher affinity for fibrin clots than a more glycosylated plasminogen (glu-plasminogen 1). Based on this work, it is believed that glycosylation of plasminogen inhibits binding of plasminogen to fibrin clots, perhaps due to steric hindrance, and further, that deglycosylated forms of plasminogen may be more effective enhancers of scu-PA in thrombolytic therapy than fully glycosylated forms of plasminogen. Improved enhancement of the activity of thrombolytic agents allows the use of lower therapeutic doses and thus, is expected to relieve some of the bleeding and other side effects of thrombolytic therapy.
Abstract:
A method of adjunctive therapy to inhibit reocclusions in a patient, e.g., after thrombolytic therapy or angioplasty, by administering to the patient a bolus of an amount of purified pro-urokinase ("pro-UK") that inhibits the formation of occlusive thrombi without inducing a systemic effect in the patient, the pro-UK is administered after the completion of the thrombolytic treatment and periodically thereafter for the duration of therapy, and becomes incorporated into the outer membrane of the platelets of the patient, thereby increasing the T.sub. 1/2 of the pro-UK in plasma, which is about 7 to 8 minutes, to about 4 to 5 days, and inhibiting reocclusion without inducing a systemic effect.
Abstract translation:一种辅助治疗方法,例如在溶栓治疗或血管成形术之后,通过对患者施用一定量的纯化的尿激酶(“pro-UK”),其抑制闭塞血栓的形成而不在 在患者中引起全身效应,在溶栓治疗完成后施用pro-UK,并在治疗期间定期施用,并且将其并入患者血小板的外膜中,从而增加T + E ,英制血浆中的1/2 + EE,其为约7至8分钟至约4至5天,并且抑制再闭合而不引起全身作用。
Abstract:
Novel polypeptide compositions based on the amino acid sequence of tissue plasminogen activator (tPA) are provided having improved properties over natural tissue plasminogen activator. Particularly, enhanced specific activity, reduced response to inhibition by plasminogen activator inhibitor, fibrin stimulation of plasminogenolytic activity and/or enhanced affinity to fibrin surfaces are provided by modifying one or more loci by deletions or substitutions. One or both of the N- or C-termini may be modified.