摘要:
This invention relates, in part, to methods and compositions that modulate the stem cell environment. More specifically, the invention relates, in part, to methods and compositions for modulating stem cell differentiation. Such modulation, in some aspects of the invention, is accomplished by agents that modulate glycosaminoglycans in the stem cell microenvironment (i.e., at or on the cell surface and/or in the extracellular matrix). Therefore, methods and compositions are provide for modulating glycosaminoglycan moieties, e.g., heparan sulfate glycosaminoglycan (HSGAG) moieties, in the microenvironment of stem cells. Methods and compositions for promoting or inhibiting embryonic stem cell differentiation (e.g., differentiation into endothelial cells) are also provided. This invention also relates, therefore, in part, to cell populations (e.g., endothelial cell populations or impoverished endothelial cell populations) that can be produced with the methods and compositions provided. Furthermore, the invention relates, in part, to tissues, and uses thereof, formed by the methods and compositions provided. Moreover, the invention also relates, in part, to methods of treatment using the methods and compositions provided.
摘要:
The invention relates to compositions and methods for the modulation of the permeability of the epithelial cell barrier complex. In particular, the invention provides compositions and methods for using polysaccharides, preferably glycosaminoglycans, and agents that modify cell surface glycosaminoglycans, preferably glycosaminoglycan-degrading enzymes to modulate intercellular junctions. The compositions and methods provided can be used to facilitate the delivery of biologically active molecules.
摘要:
The invention relates to compositions and methods for the modulation of the permeability of the epithelial cell barrier complex. In particular, the invention provides compositions and methods for using polysaccharides, preferably glycosaminoglycans, and agents that modify cell surface glycosaminoglycans, preferably glycosaminoglycan-degrading enzymes to modulate intercellular junctions. The compositions and methods provided can be used to facilitate the delivery of biologically active molecules.
摘要:
Nanocells allow the sequential delivery of two different therapeutic agents with different modes of action or different pharmacokinetics. A nanocell is formed by encapsulating a nanocore with a first agent inside a lipid vesicle containing a second agent. The agent in the outer lipid compartment is released first and may exert its effect before the agent in the nanocore is released. The nanocell delivery system may be formulated in pharmaceutical composition for delivery to patients suffering from diseases such as cancer, inflammatory diseases such as asthma, autoimmune diseases such as rheumatoid arthritis, infectious diseases, and neurological diseases such as epilepsy. In treating cancer, a traditional antineoplastic agent is contained in the outer lipid vesicle of the nanocell, and an antiangiogenic agent is loaded into the nanocore. This arrangement allows the antineoplastic agent to be released first and delivered to the tumor before the tumor's blood supply is cut off by the antianiogenic agent.
摘要:
Nanocells allow the sequential delivery of two different therapeutic agents with different modes of action or different pharmacokinetics. A nanocell is formed by encapsulating a nanocore with a first agent inside a lipid vesicle containing a second agent. The agent in the outer lipid compartment is released first and may exert its effect before the agent in the nanocore is released. The nanocell delivery system may be formulated in pharmaceutical composition for delivery to patients suffering from diseases such as cancer, inflammatory diseases such as asthma, autoimmune diseases such as rheumatoid arthritis, infectious diseases, and neurological diseases such as epilepsy. In treating cancer, a traditional antineoplastic agent is contained in the outer lipid vesicle of the nanocell, and an antiangiogenic agent is loaded into the nanocore. This arrangement allows the antineoplastic agent to be released first and delivered to the tumor before the tumor's blood supply is cut off by the antianiogenic agent.
摘要:
Nanocells allow the sequential delivery of two different therapeutic agents with different modes of action or different pharmacokinetics. A nanocell is formed by encapsulating a nanocore with a first agent inside a lipid vesicle containing a second agent. The agent in the outer lipid compartment is released first and may exert its effect before the agent in the nanocore is released. The nanocell delivery system may be formulated in pharmaceutical composition for delivery to patients suffering from diseases such as cancer, inflammatory diseases such as asthma, autoimmune diseases such as rheumatoid arthritis, infectious diseases, and neurological diseases such as epilepsy. In treating cancer, a traditional antineoplastic agent is contained in the outer lipid vesicle of the nanocell, and an antiangiogenic agent is loaded into the nanocore. This arrangement allows the antineoplastic agent to be released first and delivered to the tumor before the tumor's blood supply is cut off by the antianiogenic agent.
摘要:
The invention relates, in part, to the improved analysis of carbohydrates. In particular, the invention relates to the analysis of carbohydrates, such as N-glycans and O-glycans found on proteins. Improved methods, therefore, for the study of glycosylation patterns on cells, tissue and body fluids are also provided. Information regarding the analysis of glycans, such as the glycosylation patterns on cells, tissues and in body fluids, can be used in diagnostic and treatment methods as well as for facilitating the study of the effects of glycosylation/altered glycosylation on protein function. Such methods are also provided. Methods are also provided to assess protein production processes, to assess the purity of proteins produced, and to select proteins with the desired glycosylation.
摘要:
The invention relates, in part, to the improved analysis of carbohydrates. In particular, the invention relates to the analysis of carbohydrates, such as N-glycans and O-glycans found on proteins and saccharides attached to lipids. Improved methods, therefore, for the study of glycosylation patterns on cells, tissue and body fluids are also provided. Information from the analysis of glycans, such as the glycosylation patterns on cells, tissues and in body fluids, can be used in diagnostic and treatment methods as well as for facilitating the study of the effects of glycosylation/altered glycosylation. Such methods are also provided. Methods are further provided to assess production processes, to assess the purity of samples containing glycoconjugates, and to select glycoconjugates with the desired glycosylation.
摘要:
The invention relates to methods of identifying and characterizing properties of polymers to provide information about the polymer such as the charge of the polymer, the number and types or characteristics of units of the polymer and the sequence of the polymers. The invention also relates to methods of sequencing polymers such as nucleic acids, polypeptides and polysaccharides and methods for identifying a polysaccharide-protein interaction.
摘要:
The invention relates to methods of identifying and characterizing properties of polymers to provide information about the polymer such as the charge of the polymer, the number and types or characteristics of units of the polymer and the sequence of the polymers. The invention also relates to methods of sequencing polymers such as nucleic acids, polypeptides and polysaccharides and methods for identifying a polysaccharide-protein interaction.