Described herein are methods for purifying IIp from a biological material using an endotoxin-binding agent. The method involves applying the biological material containing the IIp to an endotoxin-binding agent, discarding the flow through, applying a wash buffer(s), and eluting the IIp from the endotoxin-binding agent.

The invention relates to the treatment of thromboembolic conditions, to fibrin clot formation and related thrombin activity, and to preparation of compounds, in particular, peptides and polypeptides for inhibiting, or for modifying the cleavage of fibrinogen by thrombin.

Provided is a novel peptide. The peptide contains the amino acid sequence set forth in SEQ ID NO: 61 and inhibits a protease.

The technology described herein is directed to CAR polypeptides and systems comprising repressible proteases. In combination with a specific protease inhibitor, the activity of said CAR polypeptides and systems and cells comprising them can be modulated. Also described herein are methods of using said CAR polypeptides and systems, for example to treat various diseases and disorders.

The present disclosure includes methods, systems, kits and compositions for treating, preventing and diagnosing viral infections, specifically SARS-CoV-2 infections, with an anti-androgen and anti-thyroid medication, a thyroid receptor antagonist, a TGF- inhibitor or a combination thereof. The present disclosure also describes methods and compositions for the treatment of viral respiratory diseases, specifically SARS-CoV-2 infections, including anti-androgens, anti-thyroid medications, thyroid receptor antagonists, TGF- inhibitors, RXR inhibitors, furin inhibitors or other agents to disrupt the androgen signaling.

This invention relates to molecules, particularly polypeptides, more particularly fusion proteins that include a serpin polypeptide or an amino acid sequence that is derived from a serpin and second polypeptide comprising of at least one the following: an Fc polypeptide or an amino acid sequence that is derived from an Fc polypeptide; a cytokine targeting polypeptide or a sequence derived from a cytokine targeting polypeptide; a whey acidic protein (WAP) domain containing polypeptide or a sequence derived from a WAP containing polypeptide; and an albumin polypeptide or an amino acid sequence that is derived from a serum albumin polypeptide. This invention also relates to methods of using such molecules in a variety of therapeutic and diagnostic indications, as well as methods of producing such molecules.

A2M polypeptide compositions containing a non-natural bait region are disclosed. Methods of producing wild-type and variant A2M polypeptides and polynucleotides containing a non-natural bait region are also disclosed. The bait regions of the variant A2M polypeptides demonstrate enhanced protease inhibitory characteristics compared to wild-type A2M. Variant A2M polypeptides that demonstrate longer half-lives upon administration to an organism compared to wild-type A2M are disclosed. The A2M compositions are useful in treating a number of diseases and conditions including inflammation, chronic wounds, and diseases with a pathology associated with proteases.

This invention relates to molecules, particularly polypeptides, more particularly fusion proteins that include a serpin polypeptide or an amino acid sequence that is derived from a serpin and second polypeptide comprising of at least one the following: an Fc polypeptide or an amino acid sequence that is derived from an Fc polypeptide; a cytokine targeting polypeptide or a sequence derived from a cytokine targeting polypeptide; a WAP domain containing polypeptide or a sequence derived from a WAP containing polypeptide; and an albumin polypeptide or an amino acid sequence that is derived from a serum albumin polypeptide. This invention also relates to methods of using such molecules in a variety of therapeutic and diagnostic indications, as well as methods of producing such molecules.

In some aspects, the disclosure relates to compositions and methods that are useful for treating inflammatory disorders and conditions. In some embodiments, the disclosure provides recombinant adeno-associated virus (rAAV) vectors and particles encoding a transgene that expresses a Myxomavirus serine proteinase inhibitor (Serp) protein (e.g., Serp-1) and methods for treating inflammatory disorders using the same.

Provided herein are IL-15 cytokine prodrugs and methods of making and using thereof.