Methods and application of tissue culture systems ex vivo

FIELD: biotechnology.

SUBSTANCE: method involves implantation of a microfluidic device that contains a cell growth chamber, an open port, as well as a demineralized bone powder and bone morphogenetic protein, into the subject for 4 weeks or more, resulting in bone marrow tissue formation. Thereafter, the said microfluidic device with the formed tissue contained therein is recovered from the subject. Further, liquid perfusion to the bone marrow tissue is provided to maintain the bone marrow tissue ex vivo. Microfluidic device implantation may be subcutaneous, intraperitoneal or intramuscular.

EFFECT: invention allows to obtain bone marrow tissue that will preserve ex vivo functioning.

8 cl, 21 dwg, 9 ex

 



 

Same patents:

FIELD: biotechnology.

SUBSTANCE: nutrient medium comprises sodium chloride, potassium chloride, magnesium sulphate, disodium hydrogen phosphate, potassium dihydrogen phosphate, calcium chloride, sodium bicarbonate, L-arginine, L-glutamine, L-tyrosine, L-tryptophan, calcium pantothenate, pyridoxal HCl, thiamine, meso-inositol, nicotinamide, riboflavin, folic acid, glucose, enzymatic hydrolyzate of muscle proteins, lactalbumin enzymatic hydrolyzate, sodium salt of benzylpenicillin with activity of 0.09×105-1.1×105, kanamycin sulphate with activity of 0.09×105-1.1×105, nystatin with activity of 6×104 to 6.5×104 IU/l, choline chloride, succinic acid and distilled water in a predetermined ratio of components.

EFFECT: invention enables to improve the quality of the product obtained.

1 tbl, 1 ex

FIELD: medicine.

SUBSTANCE: invention refers to biotechnology. What is described is using specific conjugate molecules, which are cargo molecule transporters for transporting a substance of interest into leukocytes. There are described a method for producing the above conjugate molecules, which are the cargo molecule transporters, a method for transporting the substance of interest into leukocytes, and the leukocytes containing the above conjugate molecules, which are the cargo molecule transporters. The invention can be used in medicine.

EFFECT: above conjugate molecules, which are the cargo molecule transporters, can be used for treating, preventing, relieving and/or reducing the intensity of a disease and/or a disorder involving leukocytes.

26 cl, 34 dwg, 5 tbl, 29 ex

FIELD: biotechnologies.

SUBSTANCE: blood is separated into plasma and cellular fraction. Then the blood cellular fraction is subjected to successive two-phase treatment first by the buffer PBS solution containing 5 mM of EDTA with subsequent centrifugation and collection of supernatant. Cells are treated by equal volume of 0.15-0.35% trypsin solution in PBS with subsequent centrifugation and collection of supernatant. Plasma and extracted supernatants from cellular fraction are merged, cellular debris is removed by centrifugation at 15000-17000 g within 10-20 minutes. Foreign particles of non-exosome origin by filtration through filters with the diameter pores 0.1 mcm, and the total pool of exosomes is settled by ultracentrifugation at 100000-160000 g during 60-120 minutes.

EFFECT: invention allows to increase yield and purity of target product, reduce duration and labour input of the method.

3 cl, 2 dwg, 1 tbl, 3 ex

FIELD: biotechnologies.

SUBSTANCE: strain of cells of the Chinese hamster ovaries CHO-Inflix 20/5 is produced, transfected by vectors, expressing light and heavy chains of chimeric antibody against tumour necrosis factor alpha (TNF-α) of human being is produced. The strain is deposited into the Russian collection of cellular cultures under No. RKKK(P)760D.

EFFECT: invention allows to produce chimeric antibody with the specific efficiency no less than 33,5 picograms per cell a day.

4 dwg, 2 tbl, 4 ex

FIELD: medicine.

SUBSTANCE: invention relates to field of biotechnology. Claimed is method of cultivating epithelial stem cells or separated tissue fragments, containing said epithelial stem cells, including provision of extracellular matrix, incubation of epithelial stem cell or separated tissue fragment, containing said epithelial stem cells, with extracellular matrix, cultivation of epithelial stem cell or separated tissue fragment in presence of cell culture medium, which contains basal medium for animal or human cells, into which inhibitor of bone morphogenetic protein (BMP) and 5-500 ng/ml of mitogenic growth factor are added, as well as cell culture medium, its application, method of three-dimensional organoid cultivation, method of its obtaining, three-dimensional organoid and its application.

EFFECT: method of cultivating epithelial stem cells is claimed.

32 cl, 10 ex, 34 dwg

FIELD: medicine.

SUBSTANCE: invention relates to biotechnology. Method includes adhesion of cell population to microcarrier in medium, containing Pho-kinase inhibitor. After that, cultivation of cells, separation of cells from microcarrier and adhesion of obtained cells to second microcarrier in medium containing inhibitor of Rho-kinase. Invention can be used in medicine.

EFFECT: method of growing human embryonic stem cells is disclosed.

7 cl, 48 dwg, 3 tbl, 11 ex

FIELD: medicine.

SUBSTANCE: invention refers to biotechnology and medicine. What is presented is a method for differentiation of mesenchymal stem cells of fibrotic lungs into fibroblastic cells, characterised by recovering the cells self-maintaining in vitro for 60 days and having mesenchymal stem cell phenotype (CD44+, CD73+, CD90+, CD106+, CD31-, CD34-, CD45-) from the right lobe of fibrotic lungs and producing the fibroblastic cells when adding fibroblast growth factor 2 mcg/ml to the mesenchymal stem cell culture.

EFFECT: method enables producing the donor cells from the patients suffering idiopathic fibrosis from fibrotic pulmonary tissues.

3 dwg, 1 ex

FIELD: biotechnology.

SUBSTANCE: invention relates to the field of biotechnology. ENA-21/13-13-finite monolayer-suspension cell subline of kidney of new-born Syrian hamster is deposited in the Russian Collection of Cell Cultures (RCC) in the specialized collection of finite somatic cell cultures of agricultural and game animals at the All-Russian Scientific Research Institute of Experimental Veterinary Medicine n.a. Y.R. Kovalenko (Russian Academy of Agricultural Sciences of farm animals) under No. 89 and intended for reproduction of foot-and-mouth disease virus type A, O, C, Asia-1, CAT-1, CAT-2, CAT-3, and the rabies virus strain "Schyolkovo-51", used for production of antiviral vaccines against foot-and-mouth disease and rabies.

EFFECT: enhanced immunogenicity, infectivity and concentration of cells in industrial suspension cultivation in bioreactors.

1 tbl

FIELD: medicine.

SUBSTANCE: claimed invention deals with method of obtaining population of cells, expressing pluripotency markers and markers, characteristic of formed endoderm line. Claimed method includes the following stages (a) obtaining population of cells, expressing markers HNF-3β, GATA-4, Mixl1, CXCR4, and SOX-17, characteristic of formed endoderm line, and (b) cultivation of population of cells under conditions of hypoxia on tissue culture substrate, which is not subjected to preliminary treatment with protein or extracellular matrix, in medium with addition of activin A and ligand Wnt and IGF-1 or insulin, transferrin and selenium, where cultivated cells express markers of formed endoderm line and pluripotency markers.

EFFECT: characterised invention makes it possible to obtain cells, capable of cultivation under conditions of hypoxia, which do not require lines of feeding cells, coatings of complex matrix proteins and preserve differentiation potential.

16 cl, 39 dwg, 9 tbl, 32 ex

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine, namely to immunology, and can be used in laboratory diagnostics, as a test system and a method for measuring interferon alpha (IFN-α) antiviral activity in human blood serum. The test system for measuring IFN-α activity in the human blood serum comprises diploid cells, a virus-containing fluid and standard human interferon-α (IFN-α). As the diploid cells, the test system comprises cells of the characterised line of the diploid cells - human M-20 fibroblasts at 20-33 passages cultured in the medium with added 10% fibrinolytically active plasma (FAP). As the virus, the system contains the A vesicular stomatitis virus (VSV) adapted to M-20 cells, the Indiana strain; the test system additionally contains a viral dye based on two fluorochromes - acriflavine and rhodamine C. The group of inventions also involves a method for measuring IFN-α activity in the human blood serum with the use of the developed system.

EFFECT: using the given inventions enables the quantitative good-reproducible measurement of IFN-α activity in the examined blood serum sampled by the luminescent microscopy of the vital preparations coloured in a fluorochrome-based vital dye.

3 cl, 4 dwg, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to field of biotechnology, namely to obtaining conjugates of glycoprotein, possessing erythropoietin activity, with polyethylenepiperazine N-oxide derivatives, and can be used in medicine. Conjugate of erythropoietin, corresponding to general formula (1): [-Ak-Bl-Cm-(D-C(O)-NH-EPO)p-]n, with molecular weight 50-190 kDa is obtained.

EFFECT: invention makes it possible to obtain stable conjugate of erythropoietin, containing biodegradable fragments of poly-1,4-ethylenepiperazine N-oxides, which makes it possible to increase medication safety due to sharp reduction of antigenicity (immunogenicity), toxicity and, therefore, probability of side effects, reduction of frequency of injections and regimen of dosing, as well as provides possibility of carrying out synthesis in water solutions, increase manufacturability, economical efficiency and ecological safety of production.

16 cl, 2 tbl, 9 ex

Crystals // 2556206

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention describes crystals of 2-{4-[N-(5,6-diphenylpyrazin-2-yl)-N-isopropylamino]butyloxy}-N-(methylsulphonyl)acetamide ("compound A"), as a form I of the compound A crystal, which shows diffraction peaks at 9.4 degrees, 9.8 degrees, 17.2 degrees and 19.4 degrees in its power X-ray diffraction spectrum, as a form II of the compound A crystal, which shows diffraction peaks at 9.0 degrees, 12.9 degrees, 20.7 degrees and 22.6 degrees in its power X-ray diffraction spectrum, as a form III of the compound A crystal, which shows diffraction peaks at 9.3 degrees, 9.7 degrees, 16.8 degrees, 20.6 degrees and 23.5 degrees in its power X-ray diffraction spectrum. There are also described methods for producing the forms I, II and III of the compound A crystal, based pharmaceutical composition and PGI2 receptor agonist agent, an accelerating agent for angiogenic therapy, gene engineering or autoimmune bone marrow transplantation, and an accelerating agent for angiogenesis for peripheral artery recovery or angiogenic therapy on the basis thereof; there are also described a preventive or therapeutic agent for a wide range of diseases and conditions.

EFFECT: preparing the new therapeutic agent for the wide range of diseases and conditions.

11 cl, 6 dwg, 6 tbl, 5 ex

FIELD: medicine.

SUBSTANCE: what is involved is an integrated pathogenetic therapy containing detralex 3 tablets two times a day (a daily dose of diosmin 2,700 mg, hesperidin 300 mg) for 4 days, then 2 tablets two times a day (a daily dose of diosmin 1,800 mg, hesperidin 200 mg) for 9 days, Trombovazim 1 tablet (800 units) 2 times a day for 15 days as a basic course, then 1 tablet (800 units) 1 time a day) 15 days as a supporting course, and a preparation of thioctic acid 600 mg intravenously in normal saline 200.0 drop-by-drop at max. 60 drops/min for 13 days, then 600 mg a day in the form of tablets for 17 days.

EFFECT: effective reduction of reperfusion syndrome in the given category of patients by increasing venous vascular tone, improving rheological blood properties and trophism of injured nerve terminals.

2 cl, 10 dwg, 9 tbl, 3 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to medicine, more specifically to pharmacology, and concerts agents having an effect on the rheological properties of blood. What is presented is using the chemical modification product of hydroxyethylated starch O-(2-hydroxyethyl)-(1,4)-α-D-glucan, the hybrid macromolecular compound O-(4-hydroxy-3,5-di(1,7,7-trimethylbicyclo[2.2.1]heptan-2-yl)benzyl)oxy)ethyl)-O-(2-hydroxyethyl)-(1,4)-α-D-glucan as an agent improving the rheological properties of blood. The invention can be used in a complex therapy of pathologies accompanied by blood hyperviscosity.

EFFECT: limiting an increase in blood viscosity.

4 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: what is presented is a group of inventions concerning a new application of bicyclo[2,2,2]octane-2-carboxylic acid salt. What is presented is using it for treating dysphoria in a person suffering epilepsy for treating alcohol addiction, for reducing the level of hepatic function marker specified in AST (aspartate aminotransferase), ALT (alanine aminotransferase) or bilirubin in the person for reducing an erythrocyte sedimentation rate, as well as for reducing a number or an intensity of epileptic attacks in a daily dose of min 400 mg.

EFFECT: implementing the above applications with no negative effect on patient's behaviour and the functions of the main organs and systems.

19 cl, 6 tbl, 2 ex

FIELD: medicine.

SUBSTANCE: pentoxifylline is intravenously administered in a daily dose of 5 mg/kg of newborn's body weight for the first three days of life.

EFFECT: method enables providing the considerably higher clinical effectiveness, causes no severe complications; it is accessible and efficient.

1 ex, 5 tbl

FIELD: medicine.

SUBSTANCE: invention can be applicable for treating patients suffering haemorrhagic shock. Namely, the invention refers to a hyperoxygenated agent for venous oxygen saturation, which represents an aqueous solution containing sodium chloride 0.85%, sodium hydroxycarbonate 0.10% and hydrogen peroxide 0.05-0.29%.

EFFECT: higher safety and effectiveness by blood oxygen saturation, stable osmotic activity, higher alkalinity and buffer capacity.

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to substituted isoquinolines and isoquinolinones of formula (I) and to their stereoisomer and/or tautomer forms and/or pharmaceutically acceptable salts, wherein R1 is H, OH or NH2; R3 is H; R4 is H, halogen or (C1-C6)alkylene-R'; R5 is H, halogen, (C1-C6)alkyl; R7 is H, halogen, (C1-C6)alkyl, O-(C1-C6)alkyl; R8 is H; R6 is absent; or is one of (C1-C4)alkylene related to a cycloalkyl ring related to a cycloalkyl ring, wherein (C1-C4)alkylene forms a second bond to another carbon atom of the cycloalkyl ring to form a bicyclic ring system, R10 is H, phenyl, or pyridine, wherein phenyl is unsubstituted or substituted; R11 is H, (C1-C6)alkyl; or R11 and R12 together with the carbon atom to which they are attached form (C3)cycloalkyl; R12 is (C1-C6)alkyl, (C3-C8)cycloalkyl or phenyl; or R12 is H, provided r=2 and another R12 is other than H; or R11 and R12 together with the carbon atom to which they are attached form (C3)cycloalkyl; R13 and R14 are independently H, (C1-C6)alkyl, (C1-C6)alkylene-R', C(O)O-(C1-C6)alkyl, n is equal to 0; m is equal to 1 or 2; s is equal to 1 or 2; r is equal to 1 or 2; L is O, NH; R' is (C3-C8)cycloalkyl, (C6-C10)aryl; wherein in R11 and R12 residues, alkyl is unsubstituted or optionally substituted by one OCH3; wherein in R11 and R12 residues, alkyl is unsubstituted or optionally substituted by one or more halogens; wherein in R10 and R12 residues, (C6-C10)aryl is unsubstituted or optionally substituted by one or two groups optionally specified in halogen, CN, (C1-C6)alkyl, O-(C1-C6)alkyl, SO2-(C1-C6)alkyl, CF3 and OCF3. Also, the invention refers to using a compound of formula (I).

EFFECT: there are prepared new isoquinoline and isoquinolinone derivatives effective in treating and preventing the diseases related to Rho-kinase inhibition.

38 cl, 132 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to gastroenterology and infectious diseases, and concerns the prevention of developing thrombocytopenia in the patients suffering chronic hepatitis C (CHC) in a combination with Helicobacter pylori infection and receiving a combined antiviral therapy (CAVT). For this purpose, the beginning of the CAVT is preceded by a 10-14-day eradication therapy according to the schedule: a proton pump inhibitor in a standard dose twice a day + amoxicillin 500 mg 4 times a day or 1000 mg twice a day + clarithromycin 500 mg twice a day. The CAVT starts 2 weeks after the completion of the eradication therapy.

EFFECT: method provides reducing a risk of developing or progressing thrombocytopenia in the patients with chronic hepatitis C with underlying CAVT.

4 cl, 1 dwg

FIELD: medicine.

SUBSTANCE: perftoran is administered intravenously at 5-20 ml per 1 kg of body weight.

EFFECT: reducing side effects in treating methemoglobinemia by the property of perftoran to transform methemoglobin into oxyhemoglobin.

6 dwg, 2 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to biotechnology and provides a α1,6-glucan-containing compound of Helicobacter pylori. The present invention also discloses a conjugate for inducing immune response against H.pylori, which contains said compound conjugated with a carrier protein. The present invention also discloses an immunogenic composition, use of said composition and a method of inducing immune response against H.pylori using said composition. The present invention also discloses immune serum for neutralising H.pylori in mammals, which is obtained by immunising said mammal with an immunogenic composition containing said immunogenic composition. The present invention discloses an antibody which recognises said α1,6-glucan-containing compound of H.pylori, use of said antibody and a method of inducing complement-mediated bacteriolysis of H.pylori strains which express α1,6-glucan using said antibody.

EFFECT: invention improves the effectiveness of immunogenic compositions against Hpylori.

27 cl, 8 dwg, 21 tbl, 11 ex

Up!