Abstract:
The present invention provides methods for reducing the severity of GI damage in an individual by administering a cytokine regulatory agent to an individual that is susceptible to developing such damage.
Abstract:
The present invention provides antiviral peptides having the general structure, Arg - Arg - Trp - Trp - Cys - Arg - X, where X is an amino acid or an amino acid analog, the stereochemistry of the amino acids or amino acid analogs can be (D)- or (L)-amino acids and the amino and carboxy termini of the peptide can be modified. The invention also provides a pharmaceutical composition comprising an antiviral peptide and methods of using an antiviral peptide in vitro or in vivo to reduce or inhibit a viral infection.
Abstract:
The present invention relates to novel peptides that are potent cytokine regulatory agents. In addition, the present invention relates to pharmaceutical compositions comprising a pharmaceutically acceptable carrier and a cytokine regulatory agent. Administration of such a cytokine regulatory agent to a subject can enhance or restrain cytokine activity. Thus, the present invention provides a method of regulating cytokine activity in a subject having a condition characterized by aberrant or altered cytokine activity. The invention also provides methods of treating such conditions, including, for example, disuse deconditioning, diseases mediated by nitric oxide and cytokines, adverse drug reactions, obesity, septic shock, and adverse side effects due to cancer chemotherapy or occurring as in response to organ transplantation.
Abstract:
Linear C1-C7-alkyl peralkylated oligopeptide sets of molecules are disclosed, as are their methods of synthesis and use in acceptor binding assays. Each molecule or chain of a set contains the same number of two to about ten substituted C1-C7-alkyl peralkylated amino acid residues, and the member chains of a set are present in equimolar amounts. The chains of a set contain one or more predetermined peralkylated amino acid residues at one or more predetermined positions of the peralkylated oligopeptide chain. The set contains equimolar amounts of at least six different peralkylated amino acid residues at one or more of the same predetermined positions of the peralkylated oligopeptide chain. Libraries of such sets, processes for their use and solid support-linked peralkylated sets are also contemplated, as are specific permethylated oligopeptides.
Abstract:
This invention provides novel peptides having the ability to inhibit binding of the mu specific ligand H-[D-Ala , MePhe , Gly-ol ] enkephalin ("DAGO") to the opioid receptors in crude rat brain homogenate.
Abstract:
The present invention provides a composition comprising an ion exchange resin and a therapeutically active biopolymer in a form for oral administration. The present invention also provides a composition comprising Amberlite3 IRP-64 and a cytokine regulatory agent having the amino acid sequence Ac-Nle-Gln-His-(D)Phe-Arg-(D)Trp-Gly-NH2, in a form for oral administration. The present invention further provides a method of protecting a therapeutically active biopolymer from degradation by forming a complex of the biopolymer and an ion exchange resin. In addition, the present invention provides a method of reducing or inhibiting the severity of a pathological condition by orally administering a therapeutically effective dose of the composition.
Abstract:
Dimeric oligopeptide mixture sets, their synthesis and use in determining the sequence of an oligopeptide dimer ligand that optimally binds to a receptor are disclosed. A dimeric oligopeptide mixture set has two oligopeptide portions bonded together by a disulfide bond. Each oligopeptide of a first oligopeptide portion has the same number of 3 to about 10 residues including an oxidized mercaptan-containing residue that forms part of the disulfide bond and an amino acid residue sequence that includes at least one of at least six residues in addition to the oxidized mercaptan-containing residue at the same one or more predetermined positions of the oligopeptide chain. The second portion has an oligopeptide chain having a length of 4 to about 10 residues, including an oxidized mercaptan-containing residue that forms part of the disulfide bond. The second portion is a mixture whose chains have equimolar amounts of those at least six amino acid residues at the same one or more other positions of the oligopeptide chain.
Abstract:
The present invention provides novel cytokine restraining agents, which limit or control the biological activity of cytokines. The invention also provides pharmaceutical compositions comprising a cytokine restraining peptide and methods of administering the pharmaceutical composition to a subject. The invention further provides methods for using the novel peptides to restrain cytokine activity in a subject.
Abstract:
Linear substituted oligoalkyleneimine molecules and libraries of molecules are disclosed, as are their methods of synthesis and use in acceptor binding assays. Each molecule or chain of a library contains the same number of 2 to about 10 substituted alkyleneimine repeating units, whose substituents are reduced amino acid side chains bonded to the repeating units at a position alpha to the nitrogen atom, and the member chains of a library are present in equimolar amounts. The chains of a library contain one or more predetermined reduced amino acid side chain-substituted repeating units at one or more predetermined positions of the substituted oligoalkyleneimine chain. The library contains equimolar amounts of at least six different reduced amino acid side chain-substituted repeating units at one or more of the same predetermined positions of the substituted oligoalkyleneimine chain. Particularly preferred linear substituted oligoalkyleneimine molecules and libraries are linear substituted oligoethyleneimines.