343results about "Apolipeptides" patented technology

To provide methods for treating a subject having or at risk of developing a neurocognitive disorder, such as frontotemporal lobar degeneration or neuronal ceroid lipofuscinosis.SOLUTION: Provided is a method comprising administering, to a subject diagnosed as having a neurocognitive disorder (NCD), a composition comprising a population of cells comprising a transgene encoding a progranulin (PGRN) or a granulin (GRN).SELECTED DRAWING: Figure 1A

The invention discloses a citrullinated SAA polypeptide and application thereof in preparation of a rheumatoid arthritis diagnosis product, the amino acid sequence of the citrullinated SAA polypeptide is DKYFHA-Cit-GNYDAAK-Cit-GPGGA, through the polypeptide, the citrullinated autoantigen B cell epitope of SAA and a corresponding autoantibody, namely an anti-citrullinated SAA polypeptide antibody (anti-CAP), are identified. The expression level of anti-CAP in RA patients is obviously higher than that of other disease control groups and healthy groups, and the anti-CAP has better positive rate in early RA, ESR / CRP normal RA and anti-CCP antibody / RF negative RA, and provides a new strategy for diagnosis of RA.

The disclosure provides methods of reducing the risk of a major adverse cardiovascular event (MACE) in a subject having previously experienced acute coronary syndrome (ACS) and for reducing risk of a MACE in a patient who is diagnosed with coronary artery disease and has blood high-sensitivity C- reactive (hs-CRP) of >2.0 mg / L. The methods include administering to the subject an anti-oxLDL antibody. The anti-oxLDL antibody may be administered to the subject alone or in combination with one or more additional therapeutic agents, such as one or more lipid lowering agents.

The invention discloses a preparation method of an oxidized low-density lipoprotein quality control product prepared on the basis of a novel antigen, and the method comprises the following steps: constructing an oxidized low-density lipoprotein model, carrying out molecular dynamics simulation by setting a plurality of groups of simulation conditions to calculate a stability index, and determining an optimal antigen preparation condition; acquiring antigen epitope data, and constructing a feature vector, so as to predict and screen an optimal antigen epitope by utilizing a machine learning algorithm; and based on a target cross-linking strategy, combining the oxidized low-density lipoprotein prepared under the optimal antigen preparation condition with the optimal epitope to obtain a target quality control product. According to the scheme, the preparation efficiency and quality can be improved.

The present invention relates to modified apolipoproteins with a targeting body. The targeting body may be, for example, an antibody or antigen-binding fragment that allows for targeting, for example, a specific cell, tissue or organ. The modified apolipoprotein can be used as a carrier for a payload in place of itself or when incorporated into lipid nanoparticles. The modified apolipoproteins may be used to treat or prevent a disease, or target a payload to a specific target site.

To provide a gene therapy vector comprising an expression cassette coding for a mammalian apolipoprotein E (APOE); a pharmaceutical composition; and a method for preventing, inhibiting or treating Alzheimer's disease in mammals.SOLUTION: The invention provides a gene therapy vector comprising an expression cassette coding for a mammalian apolipoprotein E that has a residue other than arginine at at least one of positions 112, 136 or 158, but is not a mammalian apolipoprotein E that has R112, R136 and R158 or a mammalian apolipoprotein E that has C112, R136 and C158, or coding for an antibody that binds to APOE4 or disrupts the binding of APOE to heparan sulfate proteoglycans.SELECTED DRAWING: None

The invention discloses mesenchymal stem cells, a screening and identifying method of lipoprotein particles secreted by the mesenchymal stem cells and application of the mesenchymal stem cells. The screening and identifying method of the mesenchymal stem cells comprises the steps of cell culture, genotype identification, multiplication capacity identification, pluripotency and self-renewal capacity identification, differentiation capacity identification, lipid droplet identification after high fat induction, APOE lipoprotein secretion capacity identification and the like. The screening and identifying method of the lipoprotein particles comprises the steps of high-fat-induced lipoprotein secretion, lipoprotein separation and purification, lipoprotein particle size identification, lipoprotein particle content identification and the like, and target cells and target lipoprotein particles can be rapidly and accurately screened through the systematic screening and identifying method. The screened target lipoprotein particles can improve the dyslipidemia of APOE4 / 4 genotype Alzheimer's disease. Compared with the prior art, the method not only can avoid the gene manipulation risk faced by APOE gene editing, but also can provide a new standard for identification of mesenchymal stem cells and lipoprotein particles secreted by the mesenchymal stem cells, and can screen wider and easier therapeutic cell sources for later application.

Described herein are compositions and methods for treatment of Age-related Macular Degeneration (AMD). In particular, described herein are polypeptides comprising helical structures having ATP binding cassette transporter membrane stabilization and agonist activity, transporter protein binding activity, and / or that may result in a cholesterol efflux, as well as methods of using these peptides to treat AMD.

The present invention relates to high density lipoprotein (HDL) or HDL mimetics for use in the prevention and / or treatment of graft-versus-host disease (GvHD) or cytokine release syndrome in a subject.

The invention provides salivary gland apolipoprotein, a gene, a carrier, a recombinant bacterium and application of salivary gland apolipoprotein, and belongs to the technical field of tick prevention and control. The amino acid sequence of the salivary gland apolipoprotein of the ligamentosa is as shown in SEQ ID NO.1. The invention further discloses a preparation method of the salivary gland apolipoprotein. After the salivary gland apolipoprotein provided by the invention is used for immunizing mice, the death rate of infected ticks can be increased, the blood sucking time can be prolonged, and the ecdysis rate of the ticks can be reduced, so that the protein or the gene provided by the invention can be used as a prevention and control target of the ticks, can be used for developing anti-tick vaccines, can be used for preventing and controlling the ticks and tick-borne diseases, and has a profound application prospect.

The present invention discloses a fusion protein, a high-density lipoprotein containing the fusion protein, and a bionic nano-drug, as well as preparation and application thereof. The fusion protein comprises an alpha-helical amphipathic polypeptide and a neuron targeting peptide. The high-density lipoprotein containing the fusion protein is used as a bionic nano-carrier to achieve brain-targeted delivery of the drug through intravenous administration, which saves manpower, material resources and financial resources compared with in situ administration to the brain, and significantly improves patient compliance.

The present invention provides a non-human animal expressing human or chimeric LPA and / or human or chimeric APOB proteins and methods of use thereof.

Methods of treating age-related macular degeneration (AMD) may include the administration of amphipathic, ATP binding cassette transporter membrane agonists to reduce the amount of drusen in the subject in need thereof. These methods may be particularly useful for treatment of intermediate AMD.

The present disclosure provides methods and compositions for the treatment of Alzheimer' s disease. The methods and compositions of the present disclosure comprise AAV vectors and AAV viral vectors comprising transgene nucleic acid molecules comprising nucleic acid sequences encoding for an APOE2 polypeptide.

The purpose of the present invention is to provide a therapeutic agent for dilated cardiomyopathy disease which produces excellent effects in the treatment of dilated cardiomyopathy (DCM) and provides a given benefit to a large number of patients. The present invention is a therapeutic agent for dilated cardiomyopathy comprising at least one selected from the group consisting of mesenchymal stem cell and microparticles derived from the mesenchymal stem cell. It is preferable that the mesenchymal stem cell is a cell having the ability to contain or secrete microparticles, that the microparticles have an average particle size of 1000 nm or less, and that they are exosomes.

The present disclosure provides a genetically modified mouse comprising a genomic nucleic acid encoding human APOE4, a genomic nucleic acid encoding mouse TREM2 modified to include a R47H substitution, and at least one genomic modification selected from the group consisting of: (a) a genomic nucleic acid encoding mouse ABCA7 modified to include an A 1541 G substitution; (b) a genomic nucleic acid encoding mouse APP modified to include G60IR, F606Y, and R609H substitutions; (c) a genomic nucleic acid encoding mouse PLCG2 modified to include a M28L substitution; (d) a genomic nucleic acid encoding mouse MTHFR modified to include a A262V substitution; (e) an inactivated Ceacaml allele; and (f) an inactivated II1rap allele. Methods of producing the genetically modified mouse and methods of using the genetically modified mouse are also provided.

The invention relates to the technical field of biology, in particular to a promoter with real skin specificity and application thereof. The promoter provided by the invention is selected from a promoter of any one or more of the following genes: GPN, FOS or APO. The promoter with true skin specificity provided by the invention can specifically express a target gene in dermis and remove off-target expression of liver and subcutaneous lipid membrane muscle at the same time, the promoter sequence is shorter than that of a broad-spectrum promoter, and the human hGPN promoter can be more safely applied clinically.

The invention relates to a bacterial strain containing an open reading frame which codes for a recombinant protein, thereby controlling a functional promoter. The invention is characterized in that the bacterial strain contains an open reading frame which codes for a muted peptidoglycan-associated lipoprotein (PAL protein), thereby controlling a functional promoter, wherein the PAL protein is muted such that the PAL protein does not contain a membrane anchor for the outer cell membrane of the bacterium. The invention additionally relates to a plasmid which codes for a recombinant protein and the muted PAL protein and to a method for the fermentative production of recombinant protein using the bacterial strain according to the invention. In this manner, product yields in the culture residue which are increased compared to the prior art can be achieved without leading to a substantial die-off of the bacterial cells.

To provide a new immunotherapeutic agent useful for treating obesity.SOLUTION: The pharmaceutical composition contains a peptide having a specific amino acid sequence containing a B cell epitope. Preferably the composition includes an aluminium salt (Alhydrogel (Al (OH) 3) and monophosphoryl lipid A as adjuvants. Intramuscular administration of the composition to a subject results in the production of antibodies capable of binding to ApoB-100 in vivo, and the antibodies exert a therapeutic effect on obesity.SELECTED DRAWING: Figure 14

A method of treating leukocytosis, endothelial dysfunction, and carditis comprising administering to a subject a lipid-binding protein-based conjugate.

The invention relates to modified apolipoprotein with a targeting body. The targeting body may for example be an antibody or antigen binding fragment that allows targeting of e.g. a specific cell, tissue or organ. The modified apolipoprotein can be used as a carrier for a payload as such or when incorporated in a lipid nanoparticle. The modified apolipoprotein finds use in the treatment or prevention of diseases, or targeting a pay load to a specific target site.

Methods and compositions are provided for the fabrication and use of sensing devices based on one or more natural biological nanopores. Uses include, but are not limited to, nucleic acid detection and sequencing. The present invention relates generally to new methods and compositions for making protein-based nanopore sensors, and more specifically to methods for assembling natural nanopore proteins within lipid nanodiscs used as carriers for delivering nanopores to lipid membrane components of sensor systems, and particularly for their use in nanopore-based nucleic acid sequencing methods.

The invention relates to an APOE typing and quantitative analysis method, and belongs to the technical field of molecular diagnosis. The invention provides a method for detecting the subtype and expression quantity of apolipoprotein E (APOE) in a simply treated plasma or tissue sample by using mass spectrometry. According to the method, a plurality of APOE protein subtype common polypeptides are used as quality control anchor points, each subtype characteristic polypeptide is calibrated, the detection stability and reliability of the characteristic polypeptides can be effectively analyzed, and the APOE subtypes can be accurately qualitative and quantitative at the same time. The method has the advantages of high efficiency, accuracy, stability and the like, and has a wide clinical application prospect.

Provided herein are gene editing systems and compositions directed to effectuate in vivo edits in the LPA gene. Treatment or prevention of cardiovascular disease through disruption of the production of apo(a) through genetic editing and the reduction of the blood lipoprotein(a) [Lp(a)] concentration is disclosed herein. Disclosed are nickase-based gene editing systems designed to effectuate the installation of insertions and / or deletions (indel variants) and / or non-synonymous variants in the coding sequence of LPA. The nickase-based gene editing systems generally comprise one or more mRNAs that encode one or more nickases and a plurality of guide oligonucleotides (e.g., gRNAs) and may be delivered in vivo to a mammalian subject in need thereof via a suitable delivery system, such as lipid nanoparticles (LNPs) (with or without GalNAc targeting moieties) intravenously, or otherwise, administered to a patient as potentially a once-and-done therapeutic. The manufacturing, use, and formulation of the gene editing systems and compositions are also disclosed.

The application belongs to the technical field of medicine, and particularly relates to a liver damage biomarker for judging whether a newborn male piglet is affected by intrauterine growth restriction. The application discloses application of APOA4 as a biomarker for judging whether a male piglet is affected by intrauterine growth restriction. Expression of APOA4 in serum and liver biopsy tissue samples of a male piglet to be detected is determined; when APOA4 is abnormally up-regulated, it is judged that the male piglet to be detected is a male piglet affected by intrauterine growth restriction.

Synthetic nucleic acids are described that can be used for astrocyte-directed expression of heterologous nucleotide sequences, as well as methods of using same for astrocyte-directed expression of such nucleotide sequences for the treatment of neurodegenerative diseases.

The present invention relates to a bacterial strain containing an open reading frame encoding a recombinant protein, thereby controlling a functional promoter. The present invention is characterized in that the bacterial strain contains an open reading frame encoding a mutant peptidoglycan-associated lipoprotein (PAL protein), thereby controlling a functional promoter, wherein the PAL protein is mutated so that the PAL protein does not contain a membrane anchor of the bacterial outer cell membrane. The present invention also relates to plasmids encoding recombinant proteins and mutant PAL proteins, and to a method for fermenting and producing recombinant proteins using the bacterial strain according to the present invention. In this way, compared with the prior art, an increased product yield in the culture residue can be achieved without causing a large number of bacterial cells to die.

The present invention provides a method for quantifying a modified HDL in a sample, the method comprising: combining the modified HDL with a modified-HDL-binding protein; and quantifying a complex between the modified-HDL-binding protein and the modified HDL. The modified-HDL-binding protein includes either a protein having the sequence of a Factor V light chain site, or a variant thereof.

The present disclosure relates to engineered phospholipid or lysophospholipid (e.g., sphingosine 1-phosphate (S1P)) chaperones derived from apolipoprotein M (ApoM)-Fc fusion proteins with extended half-life in vivo. The disclosed ApoM-Fc fusion proteins provide a safe, highly efficient and effective way of delivering S1P to endothelial cells and all tissues of the body.