摘要:
The present invention relates to stable preparation forms of a transglutaminase, for example factor XIII, which, after lyophilization, are readily soluble without turbidity. The preparation froms comprise, in addition to the transglutaminase additives selected from the group consisting of D- and/or L-amino acids other than glycine and arginine, their salts, derivatives and homologs, or dimers or oligomers thereof or mixtures thereof, and sugars or sugar alcohols. The formulations may also comprise surface active agents and/or reducing agents. The invention provides processes for preparing stable protein preparations and to the use of the described stable preparation forms for producing pharmaceuticals which are suitable, for example, for treating diseases which are characterized by F XIII deficiency.
摘要:
The present invention relates to the field of modified therapeutic polypeptides with increased in vivo recovery compared to their non-modified parent polypeptide. I.e., the invention relates to fusions of therapeutic polypeptides with recovery enhancing polypeptides connected directly or optionally connected by a linker peptide.
摘要:
The invention relates to therapeutic fusion proteins in which a coagulation factor is fused to a half-life enhancing polypeptide, and in which both are connected by a linker peptide that is proteolytically cleavable. The cleavage of such linkers liberates the coagulation factor from activity-compromising steric hindrance caused by the half-life enhancing polypeptide and thereby allows the generation of fusion proteins may show relatively high molar specific activity when tested in coagulation-related assays. Furthermore, the fact that the linker is cleavable can enhance the rates of inactivation and/or elimination after proteolytic cleavage of the peptide linker compared to the rates measured for corresponding therapeutic fusion proteins linked by the non-cleavable linker having the amino acid sequence GGGGGGV (SEQ ID NO: 94).
摘要翻译:本发明涉及治疗融合蛋白,其中凝血因子与半衰期增强多肽融合,并且其中两者通过可蛋白水解切割的接头肽连接。 这种接头的切割将凝血因子从半衰期增强多肽引起的活性损害的空间位阻释放,从而允许融合蛋白的产生在凝血相关测定中测试时可显示相对高的摩尔比活性。 此外,与通过具有氨基酸序列GGGGGGV的不可切割接头连接的相应治疗性融合蛋白的测量速率相比,接头可切割的事实可增加肽接头的蛋白水解切割后的失活和/或消除速率( SEQ ID NO:94)。
摘要:
The present invention relates to the field of modified therapeutic polypeptides with increased in vivo recovery compared to their non-modified parent polypeptide. For example, the invention relates to fusions of therapeutic polypeptides with recovery enhancing polypeptides connected directly or optionally connected by a linker peptide.
摘要:
The invention relates to a method for determining a factor XIII deficiency, a method for determining a fibrinogen deficiency, and a method for differentiating between a factor XIII deficiency and a fibrinogen deficiency by means of thrombelastographic techniques. On the basis of the evaluation of the thrombelastographic parameters, a rapid and a selective substitution of factor XIII and/or of fibrinogen in deficiency states is possible.
摘要:
A tissue adhesive is described, which contains three separate components, i.e., a stabilized, essentially fibrinogen-free protein preparation that is of storage-quality in liquid state and contains the blood coagulation factor XIII a stabilized protein preparation that is of storage-quality in liquid state and contains fibrinogen. A chaotropic substance of less than 0.28 mol/liter was added to said protein preparation to avoid or reduce the aggregation of fibrinogen, and a preparation containing thrombin, which are provided in one packaging unit prepared to be used together. Furthermore, stabilized, frozen or lyophilized protein preparations containing fibrinogen and Factor XIII are described. Said protein preparations contain fibrinogen- and Factor XIII which remains stable for more than four weeks after defrosting or reconstitution, as well as one or more added chaotropic substances in a quantity of less than 0.28 mol/liter which prevents or reduces the aggregation of fibrinogen and contain inorganic salts of
摘要:
The production of a thrombin preparation which is obtained from prothrombin which is, after activation to thrombin without the addition of thromboplastin, purified by a hydrophobic interaction chromatography, it being possible subsequently also to inactivate or remove viruses, is described. Before or after the hydrophobic interaction chromatography it is also possible in addition to carry out a cation exchange chromatography. A thrombin preparation which contains as stabilizer a noncovalently binding inhibitor and to which further stabilizers can be added for stabilization in the liquid state is additionally described.
摘要:
The present invention relates to nucleic acid sequences coding for modified coagulation factors, preferably coagulation factor VIII, and their derivatives; recombinant expression vectors containing such nucleic acid sequences; host cells transformed with such recombinant expression vectors; and recombinant polypeptides and derivatives coded for by said nucleic acid sequences, whereby said recombinant polypeptides and derivatives have biological activities and prolonged in vivo half-lives compared to the unmodified wild-type proteins. The invention also relates to corresponding sequences that result in improved in vitro stability. The present invention further relates to processes for the manufacture of such recombinant proteins and their derivatives. The invention also relates to a transfer vector for use in human gene therapy, which comprises such nucleic acid sequences.
摘要:
The present invention relates to a process for purifying fibrinogen, which comprises one or more process steps in which one or more contaminating proteins are depleted by negative chromatography and/or negative adsorption using cation exchanger, hydrophobic gel and/or dye gel. In addition, the invention relates to the fibrinogen which is obtained by the process of the invention and which is notable for improved stability, and to the production and use of pharmaceutical preparations comprising this fibrinogen.