Abstract: Methods of detecting and treating an epithelial carcinoma, such as pancreatic ductal adenocarcinoma cancer or bladder cancer, expressing antithrombin-binding heparan sulfate (HSAT) in a subject, comprising combining a biological sample of the subject containing HSAT with antithrombin and detecting binding of HSAT and the antithrombin, optionally determining that the antithrombin inhibits factor Xa.

Abstract: The present disclosure relates to treatment or prevention of a disease, such as COVID-19, in a subject by administering to the subject a therapeutically effective amount of halofuginone or a derivative or pharmaceutically acceptable salt thereof.

Abstract: Methods and compositions for diagnosing, preventing or treating a viral infection in a subject comprising administering to a subject in need thereof an effective amount of a glycosidase or a sulfatase to degrade a glycan, such as heparan sulfate, to inhibit viral infection, such as COVID-19. Methods for identifying a glycosidase, a sulfatase, or a microbe associated with increased susceptibility to viral infection in a subject.

Abstract: Abstract: Provided herein are methods of producing heparin and heparan sulfate from modified cells, such as modified MST cells and modified basophil neoplastic cells, and compositions comprising heparin and heparan sulfate isolated from modified cells. In some embodiments, methods herein comprise culturing a genetically modified cell line comprising at least one of a mastocytoma cell line and a basophil neoplastic cell line; and isolating the heparin or heparan sulfate from the cell line.

Abstract: This disclosure relates to intranasal administration of conjugates comprising guanidinylated aminoglycosides (“guanidinoglycosides”) and a polypeptide (e.g., an enzyme, antibody, or polypeptide growth factor). For example, such administration methods are useful for delivering a polypeptide to the brain and/or cerebrospinal fluid. Such methods are useful for treating a lysosomal storage disease through intranasal administration of a conjugate comprising one or more guanidinoglycosides and an enzyme useful for treating a lysosomal storage disease.

Abstract: Provided are transporters based on polymyxin B. Also provided are methods of using the transporters for intracellular delivery of cargo and methods of enhancing intracellular uptake of cargo.

Abstract: Reagents and methods useful for the synthesis of conjugates comprising guanidinylated cyclic acetals are provided. Also provided are methods for increasing the cellular uptake of various therapeutic compounds and treatment modalities using these conjugates.

Abstract: Provided are transporters based on polymyxin B. Also provided are methods of using the transporters for intracellular delivery of cargo and methods of enhancing intracellular uptake of cargo.

Abstract: This disclosure relates to the incorporation of amphiphilic guanidinylated aminoglycosides (e.g., neomycin) into liposomal assemblies, which contain entrapped therapeutics. The lysosome is responsible for enzymatically breaking down and recycling large biomolecules and aged organelles. While malfunctioned lysosomal enzymes have been established in Lysosomal Storage Disorders (LSDs), recent reports have suggested that defects in lysosomal enzymes (e.g., glucocerebrosidase) are also linked to other chronic ailments, including neurological disorders such as Parkinson's Disease and related disorders.

Abstract: This disclosure relates to intranasal administration of conjugates comprising guanidinylated aminoglycosides (“guanidinoglycosides”) and a polypeptide (e.g., an enzyme, antibody, or polypeptide growth factor). For example, such administration methods are useful for delivering a polypeptide to the brain and/or cerebrospinal fluid. Such methods are useful for treating a lysosomal storage disease through intranasal administration of a conjugate comprising one or more guanidinoglycosides and an enzyme useful for treating a lysosomal storage disease.

Abstract: Reagents and methods useful for the synthesis of conjugates comprising guanidinylated cyclic acetals are provided. Also provided are methods for increasing the cellular uptake of various therapeutic compounds and treatment modalities using these conjugates.

Abstract: This disclosure relates to intranasal administration of conjugates comprising guanidinylated aminoglycosides (“guanidinoglycosides”) and a polypeptide (e.g., an enzyme, antibody, or polypeptide growth factor). For example, such administration methods are useful for delivering a polypeptide to the brain and/or cerebrospinal fluid. Such methods are useful for treating a lysosomal storage disease through intranasal administration of a conjugate comprising one or more guanidinoglycosides and an enzyme useful for treating a lysosomal storage disease.

Abstract: This disclosure relates to intranasal administration of conjugates comprising guanidinylated aminoglycosides (“guanidinoglycosides”) and a polypeptide (e.g., an enzyme, antibody, or polypeptide growth factor). For example, such administration methods are useful for delivering a polypeptide to the brain and/or cerebrospinal fluid. Such methods are useful for treating a lysosomal storage disease through intranasal administration of a conjugate comprising one or more guanidinoglycosides and an enzyme useful for treating a lysosomal storage disease.

Abstract: Reagents and methods useful for the synthesis of conjugates comprising guanidinylated cyclic acetals are provided. Also provided are methods for increasing the cellular uptake of various therapeutic compounds and treatment modalities using these conjugates.

Abstract: Compositions and methods for treatment of disease with acetylated disaccharides and analogs thereof are provided.

Abstract: Poly(ethylene oxide) (PEO) glycodendrimers can serve as multivalent inhibitors of selectin-mediated leukocyte recruitment regulating inflammatory response. Disclosed are compounds and methods relating to functionalized branched glycopolymers. In embodiments, the compounds are capable of modifying cell adhesion events and inflammatory conditions. In a particular embodiment, a multi-arm PEO polymer with sulfated lactose end groups can specifically inhibit interactions involving L-selectin. Also disclosed are methods of synthetic preparation and use.

Abstract: The present invention provides a composition of matter comprising a biosynthetic anti-inflammatory oligosaccharide, comprising the structure of: sugar - sugar - X - R; wherein said sugar is selected from the group consisting of N-acetylneuraminic acid, galactose, N-acetylglucosamine, N-acetylgalactosamine, fucose and mannose; wherein X is a bridging atom selected from the group consisting of oxygen, sulfur, nitrogen and carbon; and wherein R is an aglycone selected from the group consisting of naphthol, naphthalenemethane, indenol, a heterocyclic derivative of indenol, a heterocyclic derivative of naphthol and a heterocyclic derivative of naphthalenemethanol. Also provided is a method of treating an inflammatory disease in an individual comprising the step of administering to said individual a therapeutically effective dose of the novel composition of the present invention.

Abstract: Conjugates of .beta.-D-xylose with estrogens or modified forms of estrogens are effective in stimulating the synthesis of heparan sulfate, and inhibiting the production of proteoglycan in animal subjects. Accordingly, these conjugates are useful in treating conditions where antithrombotic or antiproliferative activity is desirable.