Combined administration of gdf traps and erythropoetin receptor activators for increasing content of erythrocytes

FIELD: biotechnology.

SUBSTANCE: method of treatment comprises of administration to the patient of an isolated polypeptide including the amino acid sequence of SEQ ID NO: 28.

EFFECT: invention makes it possible to effectively increase the contents of erythrocytes in patients.

17 cl, 22 dwg, 19 ex



Same patents:

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention deals with application of composition, which includes hydrolysate of pea protein and/or peptide for obtaining composition for treatment and/or prevention of infection Helicobacter pylori (versions), as well as such compositions (versions). Characterised compositions include lipid, protein and carbohydrate component, in which protein component includes protein source, which consists of pea protein hydrolysate, obtained by hydrolysis with protease, different from chymotrypsin, or from peptides, selected from group, which consists of Xaan-Asp-Phe-Leu-Glu-Asp-Ala-Phe-Asn-Val-Asn-Arg-Xaam and Xaan-Glu-Leu-Ala-Phe-Pro-Gly-Ser-Ala-Gln-Glu-Val-Asp-Arg-Xaam, where each Xaa independently can be any amino acid, and n and m are integer numbers, independently varying from 0-10, where peptide is contained in pea protein hydrolysate, or from both.

EFFECT: claimed inventions make it possible to treat or prevent diseases, caused by Helicobacter pylori infection, and/or diseases, associated with infection Helicobacter pylori in mammals.

17 cl, 2 tbl, 1 ex

FIELD: food industry.

SUBSTANCE: invention relates to a method for manufacture of multiple products from aquatic plant species biomass. Biomass is obtained, destroyed and separated to produce juice and solid phase; the juice is filtered and clarified. Protein is coagulated from the clarified juice to produce broth including a wet protein concentrate. The said concentrate is separated from broth. The wet protein concentrate is dried to obtain dry protein concentrate. The solid phase is used for wet biological raw materials production. The said biological raw materials are dried to produce at least one product selected from among dry biological raw materials and meal rich in carbohydrates. At least 50% of protein in the multiple products is present in dry protein concentration.

EFFECT: method is environmentally friendly and allows production of multiple products selected from among dry biological raw materials and meal rich in carbohydrates.

35 cl, 39 dwg, 7 tbl, 25 ex

FIELD: chemistry.

SUBSTANCE: invention relates to biotechnology of obtaining haemostatic medications. Claimed is method of separating purified fibrinogen concentrate, free of viruses and ballast proteins. Solubilisation of cryoprecipitate of fresh frozen human plasma is realised. Fibrinogen is precipitated with 20-30% PEG solution. Separated sediment is dissolved in buffer with sodium citrate and sodium chloride. Virus inactivation of solution by solvent-detergent method is carried out in presence of 1-3% Tween-80 and 0.1-1.5% of tri-n-butylphoshate. Obtained concentrate is purified from products of virus inactivation and solvent-detergents by triple extraction with liquid paraffin. After that, obtained fibrinogen concentrate is re-precipitated with 1.0-2.5 M glycine solution. Sterile filtration and lyophilic drying with further corking of lyophilisate under vacuum and thermal inactivation are performed.

EFFECT: invention makes it possible to obtained lyophilised form of fibrinogen concentrate with approximately 55% output.

FIELD: biotechnology.

SUBSTANCE: method comprises the steps of destroying the bodies of inclusion, renaturation and purification of protein. Before renaturation, the preliminary purification of protein is carried out using chromatography on Q-Sepharose and SP-Sepharose using the combined columns with Q- and SP-Sepharose. After renaturation chelate and ion-exchange chromatography of recombinant prourokinase M5 is carried out without intermediate elution of the target protein with use of metal-chelate sorbent activated with ions Co2+ or Zn2+.

EFFECT: invention enables to select prourokinase M5 from inclusion bodies, comprising the present prourokinase, with high yield.

4 cl, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to the field of obtaining and separation of single-domain molecules (SDAB). Described is a method of the separation or purification of the SDAB molecule, which represents a trivalent molecule of a ATN-103 nanobody, targeting TNFα and HAS, from a mixture, containing the said SDAB molecule and one or more polluting substances. The mixture is brought in contact with a cation-exchange carrier under conditions, which make it possible for the SDAB molecule to bind with the carrier or be absorbed on the carrier. One or more polluting substances are removed and SDAB is selectively eluted from the carrier. The conductivity of a conditioning medium (CM), used for the carrier loading, constitutes from approximately 12 to 9 mS/cm and pH under conditions of loading is corrected to a value from 4.0 to 4.3. The buffer for elution corresponds to approximately 50 mM of sodium chloride or less and has pH from approximately 5.5 to 7.2. Disclosed is a method or a process of obtaining recombinant SDAB of ATN-103. A host-cell is supported in the conditions at which recombinant ATN-103 SDAB is expressed. The mixture of molecule SDAB and one or more polluting substances is obtained. ATN-103 SDAB is purified or separated with the application of cation-exchange chromatography, as said above.

EFFECT: application of the invention provides new methods of the separation or purification of the nanobody, which can be applied in obtaining the ATN-103 nanobody.

19 cl, 4 dwg, 6 ex

FIELD: biotechnologies.

SUBSTANCE: method of obtaining of a complex of antimicrobic peptides of an insect includes infecting of adipose body of an insect at a larval instar with Micrococcus luteus A270 and Escherichia coli D31 bacteria with the subsequent extraction of adipose body of an insect at a larval instar. The adipose body of an insect is placed into a nutrient medium containing water solution of sugars, inorganic salts and the antibiotic meropenem in pre-set ratio and incubated during a day with the subsequent elution of the complex of antimicrobic peptides of an insect from cultural liquid by the method of reverse-phase chromatography on the column Vydac C18 at the linear gradient of acetonitrile from 0% up to 50%.

EFFECT: invention allows to simplify a method of obtaining antimicrobic peptides.

5 dwg, 4 ex

FIELD: chemistry.

SUBSTANCE: invention refers to peptide chemistry and concerns producing tripeptide diacetate H-β-Ala-Pro-DabNHBzl referred to a biologically active compound used in cosmetic industry as an active component for cosmetic products, particularly for stimulating skin rejuvenation, tightening and prevention. The method is based on the 6-staged synthesis and is free from the stages of setting and releasing the protective groups. The method involves proline β-chlorpionyl chloride acylation followed by producing N-(3-chlorpropionyl)proline pentafluorphenyl ester in the presence of N,N'-dicyclohexyl carbodiimide. The above pentafluorphenyl ester is condensed thereafter with glumatic acid monomethyl ester to produce N-(β-chlorpropionyl)-Pro-Glu(δ-OMe)OH. That is followed by benzylamine amidation in a combination with ammonolysis and chlorine substitution by an amino group. That enables producing the tripeptide β-Ala-Pro-Glu(δ-NH2)NHBzl; Hofmann rearrangement is conducted with the use of iodo-benzene diacetate to produce a target product.

EFFECT: method is characterised by simplicity, effectiveness; it is cost-effective and uses more accessible and cheap agents.

6 ex

FIELD: biotechnology.

SUBSTANCE: method of obtaining SSI comprises the following steps. The strain Yersinis pestis KM 1279 is grown on 1.5% agar LB, the bacteria are washed three times with cold buffered normal saline. The bacteria are pelleted by centrifugation, suspended in a solution of 5 mM NaOH, kept at 37°C for two hours and the cells are pelleted by centrifugation. The supernatant is selected and the procedure as repeated three times, three supernatants are combined and filtered through the nitrocellulose membrane. The filtrate is extracted three times with the mixture of chloroform-methanol-water in a ratio of 5:2:1. The chloroform fractions are separated by centrifugation, combined and freed from water-soluble impurities. The aqueous fraction is separated by centrifugation and removed, and the chloroform fraction is dried in a vacuum rotary evaporator and the dry preparation SSI is obtained. The proposed SSI is characterised with brown colouring of dry crystals, hydrophobic properties, fluorescence in ultraviolet, lipopeptide nature, the presence of iron ions, the molecular weight of 380.6 Da.

EFFECT: inventions enable to obtain the natural regulator of virulence of plague agent.

2 cl, 6 dwg, 6 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to biotechnology. What is presented is a method for preparing a recombinant protein of type III interferon-like factor (ILF III) of the producing strain E. coli. The inclusion bodies E. coli are washed and dissolved with using 2% aqueous γ-cyclodextrin. That is followed by the sequential Ni-Sepharose, Q-Sepharose and SP-Sepharose chromatographic procedures. Refolding of a target protein is performed with using a mixture of cysteamine and cystamine at pH 10.5. The Amberchrome Profile XT20, Amberchrome Profile HPR10 and Kromasil 300-5C18 chromatographic procedures are sequentially performed.

EFFECT: invention enables optimising the ILF III purification environment at the stage of washing and dissolving the inclusion bodies Ecoli and provides 12% target protein yield.

3 dwg, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to biotechnology, specifically to immunostimulating compounds and may be used in medicine. An immunostimulating peptide of an amino acid sequence XLYDKGYTSKEQKDCVGI, where N-terminal X is N-acetylalanine, and may be covalently linked to fatty acids, selected from C2-C25, to form PDAG (peptidyl-2,3-diacylglycerides). The resulted compound may be included in pharmaceutical formulations for stimulating an immune response.

EFFECT: invention provides efficient stimulation of an immune response in subjects and may enhance the immunogenicity of the antigenic peptide when administered with PDAG.

29 cl, 10 dwg, 9 ex

FIELD: chemistry.

SUBSTANCE: invention relates to biotechnology, specifically to novel hetero-multimeric proteins obtained from modified ubiquitin, and can be used in medicine to treat or diagnose diseases associated with hyperprodution of the extradomain B of fibronectin (ED-B). The protein includes two monomeric ubiquitin links which are differently modified through substitutions of at least 6 amino acids in positions 4, 6, 8, 62, 63, 64, 65 and 66 of SEQ ID NO: 1. In the first monomer link the substitutions include: F4W, K6(H, W or F), Q62N, E64(K, R or H), S65(L, F or W), T66(S or P), and in the second monomer link: K6(T, N, S or Q), L8(Q, T, N or S), Q62(W or F), K63(S, T, N or Q), E64(N, S, T or Q), S65(F or W), T66(E or D).

EFFECT: invention enables to obtain a modified heterodimeric ubiquitin protein, capable of binding with ED-B with high affinity.

28 cl, 18 dwg, 3 tbl, 7 ex

FIELD: medicine.

SUBSTANCE: group of inventions relates to field of biotechnology and transplantation medicine and represents peptide with amino acid succession SEQ ID NO: 40. Peptide has ability to regenerate bone tissue and specifically bind with surface of apatite mineral.

EFFECT: peptide is able to be stably immobilised on apatite surface for preservation of useful activity and rendering influence on bone regeneration for long time.

9 cl, 3 dwg, 3 tbl, 4 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: present invention refers to biotechnology. There are presented versions of a humanised anti-CD79b antibody, each of which is characterised by the presence of a light and heavy chain and a set of 6 CDR with a specified amino acid sequence and at least one free cysteine amino acid residue specified in A118C (according to the European Numeration) in the heavy chain and V205C (according to the Kabat numeration) in the light chain. There are disclosed: versions of a conjugate compound of the antibody and a drug preparation, wherein the antibody is bond to the drug preparation through free cysteine; an antibody-based pharmaceutical compound for treating cancer; method for detecting CD79b or cancer cells, as well as a method for inhibiting cell proliferation using the conjugate compound. What is described is a method for producing the conjugate compound.

EFFECT: invention can find further application in the therapy of CD79b-associated cancer diseases, including treating haemopoietic tumours in mammals.

70 cl, 20 tbl, 9 ex, 51 dwg

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to biotechnology, namely to novel IL-17-inhibiting polypeptides, corresponding to fused proteins, to compositions and their application for medicinal purposes. Polypeptide contains amino acid sequence, which is selected from group, consisting of GVTLFVALYD YKAFWPGDLS FHKGEKFQIL RTSDGDWWEA RSLTTGETGY IPSNYVAPVD SIQ (SEQ ID NO: 39), GVTLFVALYD YKAFWPGDIS FHKGEKFQIL RTSDGEWWVA RSLTTGEEGY IPSNYVAPVD SIQ (SEQ ID NO: 57) or GVTLFVALYD YKAFWPGDIS FHKGEKFQIL RTSDGEWWIA RSLTTGEEGY IPSNYVAPVD SIQ (SEQ ID NO: 107); amino acid sequence, which has, at least, 80%, preferably, at least, 90%, more preferably, at least, 95% identity of amino acid sequence with SEQ ID NO: 39, SEQ ID NO:57 or SEQ ID NO: 107; fragment or functional derivative of SEQ ID NO: 39, SEQ ID NO: 57 or SEQ ID NO: 107, obtained due to substitution, addition and/or removal of not more than 5 amino acids.

EFFECT: invention makes it possible to bind IL-17 with high specificity and affinity.

33 cl, 17 dwg, 3 tbl, 12 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: presented group of inventions concerns fused proteins, nucleic acids coding these proteins, an expressing cartridge providing nucleic acid expression, a vector comprising this cartridge, a diagnostic technique for in vitro borreliosis, a kit for this diagnostic technique, which use these proteins, as well as a vaccine composition for preventing borreliosis containing these proteins. The characterised fused proteins contain (i) at least one sequence of DbpA protein of the species Borrelia specified in B. afzelii, B. burgdorferi sensu stricto and B. garinii, and (ii) least one sequence of OspC protein of the species Borrelia specified in B. afzelii, B. burgdorferi sensu stricto and B. garinii.

EFFECT: presented group of inventions enables performing more sensitive and specific analyses related to the presence of certain pathogenic species Borrelia.

11 cl, 8 tbl, 7 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to biotechnology, specifically to a fused protein containing a variant of rodostomin, and can be used in medicine. An ανβ3 integrin selective polypeptide consisting of an amino acid sequence SEQ ID NO:1 conjugated on the N terminal by a linker amino acid sequence containing a combination of the amino acids glycine and serine with a variant of a human serum albumin (HSA) with SEQ ID NO:4.

EFFECT: invention enables the higher therapeutic effectiveness in the diseases related to ανβ3 integrin.

12 cl, 14 dwg, 2 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: inventions relate to chimeric proteins, nucleic acid, coding such a protein, an expression cassette, providing the expression of nucleic acid, a vector, including the expression cassette, a method of diagnostics and a set for diagnostics. The characterised chimeric Borrelia protein includes at least one sequence of an extracellular domain of the VlsE Borrelia protein of the first type, corresponding to a certain strain, and at least one sequence of IR6 area of the VlsE Borrelia protein of the second type or Borrelia of the first type, but corresponding to a strain, different from the strain of the first type, with Borrelia being selected from Borrelia stricto-sensu, Borrelia afzelii and Borrelia garinii.

EFFECT: claimed inventions make it possible to carry out diagnostics of Lyme-borreliosis with an increased specificity and sensitivity.

15 cl, 8 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to biochemistry, in particular, to novel mutants of streptokinase. Claimed are both mutant streptokinase polypeptides and fusion proteins, possessing streptokinase activity. Claimed streptokinases are included into formulations of pharmaceutical compositions, suitable for treatment of blood circulation diseases, in particular thromboses.

EFFECT: invention makes it possible to obtain more effective mutant polypeptides with streptokinase activity in treatment of blood circulation diseases.

20 cl, 37 tbl, 10 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to field of biochemistry, in particular to single variable domain, aimed against IL-6R, to polypeptide and construction, directed against IL-6R, containing said single variable domain, as well as to methods of obtaining them. Disclosed are nucleic acids, coding said single variable domain, polypeptide and construction, as well as genetic constructions, containing said nucleic acids. Described are host cells and host organisms, containing said nucleic acids. Invention also deals with composition for blocking interaction of IL-6/IL-6R, containing effective quantity of described single variable domain, polypeptide, construction, nucleic acid or genetic construction. Also disclosed is method of prevention and/or treatment of at least one of diseases or disorders, associated with IL-6, IL-6R, complex IL-6/IL-6R and/or signal pathways, in which IL-6, IL-6R or complex IL-6/IL-6R is involved and/or biological functions and reactions, win which IL-6, IL-6R or complex IL-6/IL-6R takes part with application of described single variable domain, polypeptide, construction or composition.

EFFECT: invention makes it possible to block interaction of IL-6/IL-6R effectively with increased affinity and biological activity.

25 cl, 70 dwg, 56 tbl, 61 ex

FIELD: biotechnologies.

SUBSTANCE: invention represents a combined recombinant protein of the formula: S-L-R, including SR10, SR13, SR15, SdR10, SdR13 or SdR15, which specifically recognises melanoma cells, where S - streptavidin monomer, L - linker having amino-acid sequence Ser-Arg-Asp-Asp-Asp-Asp-Lys containing a restriction site with enteropeptidase and marked as "d", or amino-acid sequence Ser-Arg-Ala-Gly-Ala,R - melanoma-addressing oligopeptide representing R10 having amino-acid sequence Asp-Gly-Ala-Arg-Tyr-Cys-Arg-Gly-Asp-Cys-Phe-Asp-Gly, or R13 having amino-acid sequence Leu-Ser-Gly-Cys-Arg-Gly-Asp-Cys-Phe-Glu-Glu, or R15 having amino-acid sequence Asp-Gly-Phe-Pro-Gly-Cys-Arg-Gly-Asp-Cys-Ser-Gln-Glu. This invention also describes recombinant plasmid DNAs pSR and pSdR for expression of the specified combined proteins, bacterial strains Escherichia coli MG1655/pSR and MG1655/pSdR, producers of the specified combined proteins and a producing method of melanoma-addressing oligopeptide R from combined recombinant proteins SdR10, SdR13 or SdR15.

EFFECT: invention allows producing combined proteins that provide selective and effective binding to receptors on the surface of melanoma cells and can be used in diagnostics and therapy of cancer of a human being.

9 cl, 7 dwg, 5 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to biotechnology, more specifically to AXL signalling pathway inhibitors, and can be used in medicine. What is produced is a soluble AXL polypeptide version free from AXL transmembrane domain, which contains at least one amino acid modification in position No. n, wherein n is specified in 32, 72, 87, 92 or 127 or a combination thereof, wherein n+7 is described by numbering SEQ ID NO: 1 that are wild-type AXL sequences, wherein the above modification increases a AXL polypeptide binding affinity to protein 6 specifically inhibiting the growth (GAS6), which is twice as strong as the wild-type AXL polypeptide affinity. The polypeptide can be fused with Fc fragment and used in a method of treating, reducing or preventing tumour dissemination and invasion in a mammalian patient.

EFFECT: invention enables inhibiting the AXL/GAS6 signalling pathways effectively.

8 cl, 15 dwg, 6 tbl, 3 ex