187 results about "Fibronectin" patented technology

The invention belongs to the technical field of cosmetics, and discloses a wrinkle-removing and anti-aging composition containing recombinant collagen as well as a preparation method and application of the wrinkle-removing and anti-aging composition. The composition is prepared from the following components: 20.4 to 35.6 percent of glycerol, 1.1 to 3.5 percent of 1, 2-hexanediol, 8.2 to 15.4 percent of apple fruit cell culture extract, 1.6 to 3.2 percent of inositol, 0.2 to 1.0 percent of elastin, 0.1 to 1.7 percent of hydroxyproline, 0.1 to 1.0 percent of sodium polyglutamate, 0.1 to 1.0 percent of sodium hyaluronate, 0.01 to 0.1 percent of acetyl hexapeptide-8, 0.01 to 0.1 percent of fibronectin, 1.72 to 3.21 percent of soluble collagen and the balance of deionized water. The amino acid sequence of the soluble collagen is as shown in SEQ ID NO. 1. The skin care product prepared by adding the anti-wrinkle and anti-aging composition is good in safety and has the effects of resisting wrinkles, improving skin elasticity and resisting aging.

The invention relates to a plasma biomarker for predicting the curative effect of non-small cell lung cancer immunotherapy and application of the plasma biomarker. The biomarker for predicting the curative effect of the non-small cell lung cancer immunotherapy, disclosed by the invention, comprises phosphoglycerate kinase 1 (PGK1), fibronectin 1 (FN1), chromogranin A (CHGA), elastin (ELN), heterogeneous ribonucleoprotein H3 (HNRNPH3) and an Aly / REF output factor (ALYREF). The plasma biomarkers for predicting the non-small cell lung cancer immunotherapy curative effect can be detected by adopting a mass spectrum method, and the non-small cell lung cancer immunotherapy curative effect of a patient is judged by the markers.

The invention provides a probe for cell senescence analysis and a preparation method and application thereof, and belongs to the technical field of cell detection. The invention discloses a probe for cell aging analysis. The probe comprises fusion protein formed by fibronectin RGD and fluorescent protein, the fibronectin RGD is a polypeptide fragment containing an amino acid sequence as shown in SEQ ID NO: 1. The probe is fixed on a solid-phase carrier and then co-incubated with cells to be detected, the condition of senescent cells can be analyzed and judged by detecting the intensity of a fluorescence signal, the purpose of rapid analysis is achieved, the analyzed cells can be recycled and then continuously cultured, the detection cost is low, and the probe is suitable for large-scale popularization and application in the market.

The present invention relates to the fields of medicine and cosmetology, and discloses a cell active peptide composition that promotes the regeneration of multi-type collagen structural proteins, its preparation method, and its application in medicine and cosmetology. The composition uses raw materials such as tripeptide-10 citrulline, hexapeptide-9, hydrolyzed sodium hyaluronate, γ-aminobutyric acid, decarboxylated carnosine hydrochloride, acetyl tetrapeptide-3, acetyl tetrapeptide-11, palmitoyl dipeptide-7, and palmitoyl pentapeptide-4. The composition can promote the coordinated expression of skin type I, type III, type IV, type VII, type XVII collagen, fibronectin, elastin, and glycosaminoglycans; prevent collagen cross-linking, maintain triple helix structure, and inhibit collagen degradation. Applied to dermatology and cosmetology, it can accelerate the regeneration of structural proteins such as skin collagen, repair skin damage, reduce wrinkles such as crow's feet, tear groove lines, nasolabial folds, and under-eye lines, solve the skin aging problem caused by the loss of structural proteins such as collagen, and improve skin elasticity and firmness.

Provided are antibodies that include amino acid sequences of SEQ ID NOs: 2, 4, and 6-12, or amino acid sequences that are about 95% identical thereto, and fragments thereof. Also provided are scFv peptides that include a VH segment having a first amino acid sequence of amino acids 4-113 of any one of SEQ ID NOs: 2 and 8-12, a VL segment having a second amino acid sequence having amino acids 113-237 of SEQ ID NOs. 2 and 8-12, or both; nucleic acids encoding the same; methods for using the same to detect and / or target conformational states of FN in samples; methods for treating diseases and / or disorders and / or for meliorating at least one symptom of consequence of a disease or disorder associated with abnormal expression of a force-induced conformational state of FN in subjects; and methods for screening for compounds having selective binding activities for conformational states of FN.

The invention relates to the technical field of biology, and particularly discloses a construction method and application of an endometrial epithelium organ fibrosis model. According to the method, human endometrial epithelial cells are extracted, and an endometrial epithelial organ is established by adopting a Matrigel three-dimensional culture system. Afterwards, the organoid is induced to form endometrial phenotypes in different physiological cycles through hormone stimulation, and a ferroptosis inducer FIN56 is added in the culture process to induce fibrosis. The expression of GPX4, Fibronectin and p-Smad2 / 3 is detected through Western blot and immunofluorescence, and the successful construction of the fibrosis model is verified. The invention provides an in-vitro model capable of simulating endometrial fibrosis pathological characteristics of a patient with PCOS (polycystic ovarian syndrome), the in-vitro model can be used for mechanism research and drug screening of PCOS-related endometrial lesions, and a new research tool and an intervention strategy are provided for treatment of PCOS endometrial fibrosis.

The invention provides a liquid crystal bionic water-locking and oxygen-permeating nursing composition as well as a preparation method and application thereof, and belongs to the technical field of cosmetics. The skin care product is prepared from components in percentage by weight as follows: 20%-40% of glycerin, 5%-10% of hydrogenated lecithin, 5%-10% of phytosterols, 0.1%-0.5% of sodium stearoyl glutamate, 0.01%-0.05% of sodium methyl stearoyl taurate, 0.1%-1% of ceramide NP, 1%-10% of caprylic / capric triglyceride, 1%-10% of squalane, 0.1%-1% of tocopheryl acetate, 0.01%-0.3% of DNA sodium, 0.001%-0.1% of fibronectin and the balance of water. 0.001-0.1% of soluble collagen and the balance of water. The liquid crystal bionic water-locking and oxygen-permeating nursing composition provided by the invention can better form a breathable protective film on the surface of skin, reduce water loss of the skin and help to repair a damaged skin barrier, so that the water-locking and oxygen-permeating nursing effect is achieved.

The invention relates to the technical field of biological medicine, in particular to I-type humanized collagen as well as a preparation method and application thereof. The amino acid sequence of the type I humanized collagen prepared by the invention is shown as a sequence SEQ ID NO. 1 (HTGAWGKTVIEYKTTKTSRLVMGFXGPKGAA, wherein X is hydroxyproline). The invention also discloses a preparation method of the type I humanized collagen. The I-type humanized collagen contains essential amino acids and semi-essential amino acids of a human body, promotes proliferation of human skin fibroblasts, up-regulates expression of elastin, fibronectin and collagen I genes, and has the effects of interacting with endothelial cells and osteoblasts, promoting creeping and growth of the osteoblasts, and promoting the growth of the osteoblasts. And the interaction between osteoblasts and collagen is promoted. Therefore, the I-type humanized collagen can be widely applied to orthopedic sports materials and has application prospects in the fields of medical cosmetology and sports medicine materials.

The invention belongs to the technical field of medicines, and particularly relates to application of sophora alcohol T in preparation of an anti-hepatic fibrosis medicine. The invention provides the application of the sophora alcohol T in preparation of the anti-hepatic fibrosis medicine for the first time, for example, the sophora alcohol T can be applied to preparation of the medicine for preventing or treating hepatic fibrosis. The compound can be used for preparing medicines for inhibiting hepatic stellate cell proliferation or activation, inhibiting fibronectin level rise, inhibiting alpha-smooth muscle actin level rise or inhibiting I-type collagen level rise, and has good patent medicine potential and wide development, transformation and clinical application value and prospect, and the compound can be used for preparing medicines for inhibiting hepatic stellate cell proliferation or activation, inhibiting fibronectin level rise, inhibiting alpha-smooth muscle actin level rise or inhibiting I-type collagen level rise.

The present invention discloses an axolotl skin extract, its preparation method and applications, relating to the technical field of biomedicine. The axolotl skin extract is rich in various active ingredients, including members of the collagen family, fibronectin, C1Q complement protein, fibronectin, etc. These ingredients complement and promote each other, making the extract have remarkable effects in aspects such as skin anti-aging and skin injury repair, and thus having broad application prospects in drug R & D, cosmetics and functional foods. The method for extracting axolotl skin protein, through rapid freeze-thaw treatment of samples, combined with mechanical crushing, ultrasonic-assisted separation and multiple filtration steps, avoids the influence on the activity of the product, and can obtain a variety of composite proteins; adjusting the pH value of the buffer solution further optimizes the properties of the extract, making it more suitable for human skin, and being sterile and directly usable as the raw material of the product, realizing large-scale production and promoting the industrial application of axolotl skin extract.

The present invention discloses a method for simulating the tumor blood vessel growth process, comprising constructing a two-dimensional discrete coordinate system based on a two-dimensional tumor model and defining a blood vessel index function that describes the cell grid properties of the cell grid; updating the cell number, oxygen concentration, fibronectin concentration, and growth factor concentration of each cell grid at preset intervals t; predicting the movement direction of the blood vessel tip within the current time period t based on the fibronectin concentration and growth factor concentration; calculating a first predicted extension distance and a second predicted extension distance based on the movement direction within the current time period t and the movement direction within the previous time period t; and updating the cell grid properties of each cell grid in the two-dimensional discrete coordinate system based on the movement direction within the current time period t, the vessel tip's existence time, and the movement extension distance calculated from the vessel tip. The present invention incorporates oxygen concentration and cell number into the tumor blood vessel growth model to achieve accurate simulation and prediction of the tumor blood vessel growth process.

The invention belongs to the technical field of medicines, and particularly discloses application of fibronectin 1 (FN1) in treatment of mycobacterial infection. The invention finds that the FN1 has new application, and the survival of mycobacteria can be inhibited when the FN1 is independently applied; in a mycobacterium infection model, after the FN1 protein is exogenously added, the number of mycobacteria in macrophages is remarkably reduced; on the contrary, after the FN1 is knocked down, the number of mycobacteria in the macrophage is obviously increased. Further mechanism research shows that the FN1 affects release of reactive oxygen species (ROS) and cytokines by regulating a PI3K / AKT signaling pathway, and further removes mycobacteria in macrophages. From the perspective of host immunity, the invention discloses a mechanism that FN1 affects ROS (reactive oxygen species) and inflammatory response by regulating a PI3K / AKT signal channel so as to inhibit mycobacteria, and a new medicine is provided for treatment of mycobacteria infection. On the basis, FN1 can be independently used or combined with first-line antituberculosis drugs, and a new means is provided for solving the problem of drug resistance in mycobacterium infection treatment.

Provided herein are methods for improving glycemic control in a human patient, methods for treating, preventing or reducing overweight or obesity and related co-conditions, and methods for treating or preventing type II diabetes mellitus by administering a polypeptide to the patient, the polypeptide comprises a fibronectin type III tenth (10Fn3) domain that binds to a myostatin. In some embodiments, the polypeptides are administered according to a specific clinical dosing regimen (e.g., at a specific dose and according to a specific time interval) (or for administration according to the regimen).

A method for the expression and / or for the amplification of the expression of thrombospondin-1, fibronectin, vimentin and / or mimecan in human skin. the method comprises applying to human skin at least one caviar extract which is capable of causing the expression and / or the amplification of the expression of thrombospondin-1, fibronectin, vimentin and / or mimecan in human skin.

A treated human umbilical cord composition for use in the treatment of Perony's disease by in vivo injection in a subject in need thereof using an effective amount of the composition. The composition comprises a water-based human umbilical cord filtrate, wherein endogenous hyaluronic acid (HA) and / or hyaluronic acid, fibronectin, insulin growth factor binding protein-1 (IGFBP-1), sulfated glycosaminoglycan (sGAG), exosomes, interleukin-1 receptor antagonist (IL-1ra), hepatocyte growth factor (HGF), transthyretin, metalloproteinase tissue inhibitor 1 (TIMP-1), and / or a pharmaceutically acceptable salt thereof in an amount effective to reduce the size of Pteroid disease plaques. The present invention relates to an aggregation glycan, or a combination thereof.

A universal biological prosthesis of acellular dermal matrix (ADM) intended for use in body reconstruction processes and method of manufacture. A universal biological prosthesis of acellular dermal matrix (ADM) intended for use in body reconstruction processes, comprising: a first layer of ADM of biological origin arranged inferiorly to delimit a cavity with a lower edge; a filling material disposed in the cavity surrounded by the first layer of ADM consisting of a ground ADM having the consistency of a fibrous paste; and a second layer of ADM of biological origin arranged on the upper part covering the filling material and whose upper edge rests peripherally on the lower edge of the first layer of ADM, thus defining a rim;where the first layer of ADM and the second layer of ADM are joined by an eyebrow overlap along the upper edge of the first layer of ADM with the lower edge of the peripheral rim using a biocompatible adhesive, or by absorbable suture; where the first layer of ADM, the second layer of ADM and the ADM filling material are not immunogenic; and where the ADM comprises collagen fibers, fibronectin, elastin, laminin, glycosaminoglycans and hyaluronic acid. Method for its manufacture.

The invention provides an EP300 detection preparation and application of EP300 in a product for treating rheumatoid arthritis, and relates to the technical field of biological medicines. The rheumatoid arthritis symptom is relieved by inhibiting EP300 gene expression, after EP300 is knocked down in human THP-1-derived macrophages, H3K18 lactylation expression is reduced, and after EP300 is knocked down in human THP-1-derived macrophages, EP300 and human synovial cells are co-cultured, so that the human THP-1-derived macrophages are subjected to H3K18 lactylation expression is reduced, the human THP-1-derived macrophages are subjected to H3K18 lactylation expression is reduced, and the human THP-1-derived macrophages are obtained. Through the crosstalk effect between human THP-1-derived macrophages and human synovial cells, the expression of inflammatory markers MMP3 and Fibronectin in the synovial cells can be remarkably inhibited, compared with a model group, the proliferation capacity of the synovial cells is weakened, a potential treatment target is provided for treating rheumatoid arthritis, and the application has the advantages that the application is easy to popularize and use, and the application has a wide application prospect. The pathogenesis of rheumatoid arthritis is perfected, and hope is brought to research and development of novel biomarkers for early diagnosis, targeted therapy and prognosis evaluation of rheumatoid arthritis.

The present invention relates to compositions and methods of GDNF fusion polypeptides, wherein the GDNF fusion polypeptides include an Fc domain, an albumin-binding peptide, a fibronectin domain, or a human serum albumin, joined to a GDNF variant either directly or by the way of a linker. The GDNF fusion polypeptides may used to treat metabolic diseases, such as obesity and Type-1 and Type-2 diabetes, and neurological diseases, such as Amyotrophic lateral sclerosis (ALS) and Parkinson's disease.

According to the RNA binding protein HuR inhibitor and the anti-fibrosis application thereof, the compound provided by the invention has obvious inhibitory activity on HuR protein, has a good anti-renal fibrosis effect, can obviously reduce protein and mRNA expression levels of fibronectin (FN1) and alpha-smooth muscle actin (alpha-SMA), can improve renal function impairment, and can be used for preparing the anti-fibrosis medicine for treating renal fibrosis. The levels of blood urea nitrogen (BUN) and creatinine (Cr) which are commonly used for evaluating the renal function are reduced, and the compound can be used for preparing the medicine for treating the chronic kidney disease.

The invention relates to the technical field of collagen dressings, in particular to a moisturizing and repairing collagen dressing and a preparation method thereof. The moisturizing and repairing collagen dressing is prepared from the following components in parts by mass: 10 to 30 parts of recombinant human fibronectin, 10 to 20 parts of recombinant collagen, 5 to 15 parts of beta-glucan, 5 to 10 parts of compound hexanediol, 40 to 50 parts of carbomer, 5 to 15 parts of a flavoring agent, 80 to 120 parts of purified water, 10 to 30 parts of a modified recombinant human III type collagen solution and 10 to 20 parts of a modified chitosan solution. The recombinant human fibronectin disclosed by the invention can be deposited at an injured part to form a blood clot, so that the aim of stopping bleeding is fulfilled, and the subcutaneous tissue is protected; the recombinant collagen has high biological activity and can inhibit inflammation and improve the conditions of pachulosis, damage and the like of the skin; the beta-glucan can generate cytokines, promote healing of skin with laser-dependent dermatitis or barrier damage, and realize anti-allergic and anti-inflammatory effects.

The present application provides methods and processes for making and using a fibronectin composition, as well as methods for treating ocular conditions and / or disorders with the cellular fibronectin composition described herein.

The invention provides a pentapeptide compound fluorescent probe and application thereof to identification of injury before life and injury after death, and belongs to the technical field of forensic pathology, the pentapeptide compound fluorescent probe comprises a targeted pentapeptide CREKA and a dicyanomethylene-4H-pyran dicyanomethylene-4H-pyran fluorescence labeling compound; the targeted pentapeptide CREKA and the dicyanomethylene-4H-pyran dicyanomethylene-4H-pyran fluorescence labeling compound are in covalent linkage with each other; the pentapeptide compound fluorescent probe provided by the invention has the advantages of high specificity aiming at the fibrin-fibronectin compound, rapidness and convenience in detection, wide application range and the like, and can be effectively applied to rapid identification of pre-birth injury and post-fatality injury. The pentapeptide compound fluorescent probe can solve the problem that a traditional method is insufficient in accuracy under the conditions of atypical damage form change, incomplete field conditions and the like, and provides a new technical support for forensic pathological damage identification.

Provided herein are methods of preparing modified fibronectin proteins. Also provided herein are methods of preparing such modified fibronectin proteins and their use in connection with purifying components of interest. Also provided herein are methods of preventing filter fouling using cell lines engineered to express the modified fibronectin proteins described herein.

The present invention provides a microfluidic cell culture chip and a pollutant toxicity monitoring platform. The microfluidic cell culture chip includes a sealed housing, wherein a plurality of cell culture chambers are provided within the sealed housing. A gas exchange chamber is provided on the periphery of the cell culture chamber, one end of the cell culture chamber is connected to a liquid inlet, and the other end is connected to a liquid outlet, and the gas exchange chamber is connected to an air inlet and an air outlet, respectively. The gap between the cell culture chamber and the gas exchange chamber is filled with a PDMS layer, wherein the PDMS layer has micropores for gas to pass through, and the surface of the PDMS layer is modified with any one of polylysine, human recombinant fibronectin, and fish collagen. The pollutant toxicity monitoring platform constructed by coupling the microfluidic cell culture chip with cell electrochemical technology can realize online monitoring of pollutant toxicity, has the advantages of high sensitivity and low cost, and provides a new technical platform for environmental pollutant toxicity detection.

The invention relates to the technical field of artificial dermis, in particular to a preparation method and application of artificial dermis based on bionic acellular matrix. The artificial dermis comprises a bionic acellular matrix component A and an auxiliary material component B, wherein the component A comprises type I collagen, type VI collagen, elastin, fibronectin, laminin, mother cell protein and glucan; the component B comprises antibacterial peptide, antibiotics and a high-molecular polymer material; the mass ratio of the component A to the component B is (4-6): (1-4). The preparation method comprises the following steps: respectively preparing procedure mother liquor of the component A and the component B, preparing hydrogel with a double-layer gradient structure through step-by-step crosslinking, and then carrying out freeze drying and sterilization treatment. The artificial dermis disclosed by the invention has good biocompatibility and antibacterial property, can effectively promote wound healing, is suitable for repairing acute and chronic wounds of four limbs, faces and trunk parts, and is particularly suitable for repairing complex wounds with exposed bones, tendons, nerves and blood vessels.

This invention provides a liquid crystal biomimetic water-locking and oxygen-permeable skincare composition, its preparation method, and its application, belonging to the field of cosmetic technology. It comprises the following components by weight percentage: 20-40% glycerin, 5-10% hydrogenated lecithin, 5-10% phytosterols, 0.1-0.5% sodium stearoyl glutamate, 0.01-0.05% sodium methylstearoyl taurate, 0.1-1% ceramide NP, 1-10% caprylic / capric triglyceride, 1-10% squalane, 0.1-1% tocopheryl acetate, 0.01-0.3% sodium DNA, 0.001-0.1% fibronectin, 0.001-0.1% soluble collagen, and the balance being water. The liquid crystal biomimetic water-locking and oxygen-permeable skincare composition provided by this invention can better form a breathable protective film on the skin surface, reduce skin moisture loss, and help repair damaged skin barriers, thereby achieving the effect of water-locking and oxygen-permeable skincare.

The invention belongs to the technical field of cosmetics, and discloses a composition with tightening, moisturizing and repairing effects as well as a preparation method and application thereof. The composition is prepared from the following components in parts by mass: 1 to 30 parts of elastin, 1 to 30 parts of fibronectin, 1 to 40 parts of milk protein and 1 to 35 parts of agilawood extract. The composition disclosed by the invention is mild and non-irritant, is good in formula stability, and has multiple skin care effects of tightening, moisturizing and repairing, so that the composition has a wide application prospect in the development of cosmetics.

The invention provides a culture medium for NK cell culture and a preparation method of NK cells. The culture medium comprises a coating solution, an activation culture medium and a proliferation culture medium, the coating solution comprises an antibody, recombinant human fibronectin and a buffer solution; the activation culture medium comprises a first cell factor, a glycogen synthase kinase inhibitor and an NK basal culture medium; the proliferation culture medium comprises a second cell factor and an NK basal culture medium. The problem that in the prior art, prepared NK cells are poor in quality can be solved, and the method is suitable for the field of cell culture.

The invention discloses a serum protein marker combination for detecting cerebral microhemorrhage, and belongs to the field of biological medicine detection.The serum protein marker combination comprises four serum proteins including matrix metalloproteinase 3, fibronectin-like extracellular matrix protein 1 containing epidermal growth factors, a metalloproteinase inhibiting factor 1 and uromodulin; through efficient and accurate serum protein marker combination, the defects that brain function magnetic resonance SWI examination is high in cost and long in time consumption, operation depends on high-level imaging physicians and the like are overcome, an innovative tool is provided for rapid, accurate and non-invasive screening and auxiliary diagnosis of cerebral microhemorrhage, and wide clinical application prospects are achieved.

The invention belongs to the technical field of protein engineering, and discloses a humanized collagen XVII type polypeptide as well as a preparation method and application thereof. The amino acid sequence of the humanized collagen XVII type polypeptide is as shown in SEQ ID NO.1, and the polynucleotide sequence for coding the humanized collagen XVII type polypeptide is as shown in SEQ ID NO.2. The invention also provides application of the polypeptide in preparation of a protein product with functions of preventing hair loss and growing hair and / or repairing, resisting wrinkles and tightening skin. The application proves that the humanized collagen XVII type polypeptide can promote proliferation of hair papilla cells, keratinocytes and fibroblasts and promote up-regulation of expression of beta-Catenin signal channel protein closely related to hair growth in the hair papilla cells; the up-regulation expression of fibroblast type III collagen, type IV collagen, type VII collagen, fibronectin and elastin is promoted, so that the polypeptide is proved to have the effects of preventing hair loss and growing hair and / or repairing, resisting wrinkles and tightening skin.