摘要:
Novel .gamma.-endorphins represented by the formula 1H-Tyr-X-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-Ywherein: X is a chiral residue of a D-amino acid selected from the group consisting of D-alanine, D-leucine, D-isoleucine, D-valine, D-phenylalanine, D-tyrosine, D-tryptophan, D-serine, D-threonine, D-methionine, D-glutamic acid, D-glutamine, D-proline D-aspartic acid, D-asparagine, D-lysine, D-arginine and D-histidine; and Y is selected from the group consisting of hydroxy, amino, loweralkylamino, diloweralkylamino and lower alkoxy; and the pharmaceutically acceptable salts thereof; intermediates useful in making the novel compounds; and pharmaceutical compositions and methods employing the novel compounds.
摘要:
Multicomponent compositions and methods of use thereof are disclosed herein. Some embodiments of the present invention include multicomponent compositions comprising a first component and a second component, where the first component comprises a notch influencing molecule and the second component comprises a GPCR targeted molecule. Kits comprising the multicomponent composition are also disclosed. Methods for providing the multicomponent composition to one or more cells are additionally provided. Further embodiments include methods of using the multicomponent composition such as, for example, methods of administering the multicomponent composition and method of treating organisms (such as mammals) using the multicomponent composition.
摘要:
This invention relates to methods and compositions for the treatment, management or prevention of injuries to one or more of the organs of the body, such as the brain, heart, lung, kidneys, liver, and gastrointestinal tract, of humans or other mammals caused by one or more anticancer agents. The methods of this invention consist of the administration of an effective amount of one or more pituitary adenylate cyclase-activating polypeptide (PACAP)-like compounds, which includes native human PACAP38, native human PACAP27, native human vasoactive intestinal peptide (VIP), their agonists, analogs, fragments, and derivatives, with activities toward one or more of the PACAP/VIP receptors, including all of their various isoforms. This invention also provides pharmaceutical compositions of one or more PACAP-like compounds of the invention either alone or in combination with one or more other prophylactic/therapeutic agents useful for the treatment, management or prevention of injuries to the organs of the body of humans or other mammals undergoing cancer chemotherapy. Combination therapy with one or more PACAP-like compounds plus one or more anticancer agents can be used in the treatment of hematological cancers.
摘要:
A linear (i.e., non-cyclic) analog of biologically active amphibian bombesin, mammalian gastrin-releasing peptide (GRP), or mammalian growth hormone releasing factor (GRF), having an active site and a binding site responsible for the binding of the peptide to a receptor on a target cell. Cleavage of a peptide bond in the active site of naturally occurring bombesin, GRP, or GRF is unnecessary for in vivo biological activity. The analog has one of the following modifications: (a) a deletion of an amino acid residue within the active site and a modification of an amino acid residue outside of the active site, (b) a replacement of two amino acid residues within the active site with a synthetic amino acid, a .beta.-amino acid, or a .gamma.-amino acid residue, or (c) a non-peptide bond instead of a peptide bond between an amino acid residue of the active site and an adjacent amino acid residue.
摘要:
A linear peptide which is an analog of a naturally occurring, biologically active peptide having an active site and a binding site responsible for the binding of the peptide to a receptor on a target cell, cleavage of a peptide bond in the active site to the naturally occurring peptide being unnecessary for in vivo biological activity, the analog having a non-peptide bond instead of a peptide bond between an amino acid of the active site and an adjacent amino acid, and having the same binding site as the naturally occurring peptide, so that the analog is capable of acting as a competitive inhibitor of the naturally occurring peptide by binding to the receptor and, by virtue of the non-peptide bond, failing to exhibit the in vivo activity of the naturally occurring peptide.
摘要:
A compound of the formula: ##STR1## wherein each A.sub.1 and A.sub.2, independently, is H, C.sub.1-12 alkyl, C.sub.7-10 phenylalkyl, R.sub.1 CO (where R.sub.1 is C.sub.1-20 alkyl, C.sub.3-20 alkenyl, C.sub.3-20 alkinyl, phenyl, naphthyl, or C.sub.7-10 phenylalkyl), or R.sub.2 OCO (where R.sub.2 is C.sub.1-10 alkyl or C.sub.7-10 phenylalkyl), provided that when one of A.sub.1 or A.sub.2 is R.sub.1 CO or R.sub.2 OCO, the other must be H;each X.sub.1 and X.sub.2, independently, is H, F, Cl, Br, OH, CH.sub.3, or CF.sub.3, provided that at least one of X.sub.1 and X.sub.2 must be H;A.sub.3 is Phe or Tyr; andA.sub.4 is OH, NH.sub.2, or NH-R.sub.3 (wherein R.sub.3 is a saturated aliphatic C.sub.1-8 alkyl);or a pharmaceutically acceptable salt thereof. A therapeutic composition containing the compound of the present invention and a method of using the same are also described.
摘要:
The present invention relates to novel growth hormone-releasing peptides and method for increasing the release of growth hormone levels in mammals, as well as method for increasing milk production in dairy cows and increasing growth rates of animals, such as cattle, sheep, swine, and others. The novel peptides of this invention surprisingly are effective for releasing growth hormone levels in animals by replacing the natural amino acids in positions 1, 2, 3, 8, 9, 10, 12, 21 and 27, as well as derivatizing the N-terminal amino acid residue in human pancreatic islet tumor origin growth hormone-releasing factor.