Abstract:
The present invention provides new derivatives of CATH2 or CMAP27, one of the cathelicidins. These derivatives comprise N-terminally truncated peptides, cyclic peptides, D-amino acid variants of CATH2 and its truncated derivatives, inverso and retro-inverso CATH2 derivatives. These derivatives are useful as anti-infectives, in vaccines, and especially for in ovo applications. Further, for the above derivatives and also for the already known C-terminally truncated derivatives new immunoactivating functions have been described that are particularly advantageous for prophylactic treatments.
Abstract:
Herein we describe, a candidate gene for the diffusible cell density signal is put through the classic test to validate its activity: ectopic expression in another cell type from another species, purification of the recombinant factor, and testing back on PAT cells to see if it acts like the original diffusible cell density signal. This classic approach is complicated by the finding that the cell type producing this protein binds a unique tissue-specific lipid cofactor and this composite molecule imparts a tissue-specific response. Previously, this mechanism was shown to rely on a diffusible factor with an affinity for the cell layer.
Abstract:
The invention is directed to methods for extracting phosvitin from egg yolk involving contacting the egg yolk or egg yolk protein granules with a solution having a salt concentration of about 10% to form a mixture; optionally, heating the mixture; adjusting the pH of the mixture to separate phosvitin from other proteins; recovering the phosvitin. The phosvitin extract may be dephosphorylated and hydrolyzed to produce phosvitin phosphopeptides.
Abstract:
The present invention generally relates to miniature proteins, including miniature proteins that are permeable to cells. Certain aspects of the invention are generally related to miniature proteins, such as avian pancreatic polypeptide (aPP), modified such that the miniature proteins are permeable to cells. For instance, a portion of the aPP, such as the alpha helix region and/or the type II polyproline helix region, may be modified to render the region substantially cationic. As an example, one or more residues may be substituted with cationic amino acid residues such as arginine. The miniature proteins may also have additional functions, such as the ability to bind to other proteins such as Bcl2 or hDM2. Another aspect of the invention is generally directed to sequences, such as PRR or PPR, that can be added to other proteins in order to increase their cell permeability. Still other aspects of the invention are generally directed to methods of making such proteins, methods of using such proteins, kits involving such proteins, and the like.
Abstract:
In certain aspects, the present invention provides miniature proteins resulted from a protein scaffold such as an avian pancreatic polypeptide that can be modified by substitution of at least one amino acid residue. In other aspects, the present invention provides diagnostic and therapeutic uses of these miniature proteins.
Abstract:
A composition for eliciting a T-cell mediated immune response in a subject includes transfer factor from at least two different types of source animals. For example, the composition may include mammalian transfer factor and nonmammalian transfer factor. An example of the composition includes a combination of a colostrum-derived product, which includes the mammalian transfer factor, and an egg-derived product, which includes the nonmammalian transfer factor. Additionally, the egg-derived product may be substantially free of fat. Methods for forming the composition and eliciting T-cell mediated immune responses in subjects that have been treated with the composition are also disclosed.
Abstract:
La invención consiste en la producción de ovoproductos conteniendo péptidos bioactivos a partir de clara de huevo sometida a un tratamiento enzimático. Dichos péptidos muestran actividad inhibidora de la enzima convertidora de angiotensina (actividad IECA) in vitro y/o actividad antihipertensiva en ratas y/o actividad antioxidante. Estos ovoproductos: los hidrolizados completos, las fracciones de los mismos de bajo peso molecular, o sus péptidos constituyentes, podrían utilizarse como sustancias terapéuticas con actividad IECA y/o con actividad antihipertensiva y/o con actividad antioxidante, ya sea como productos alimentarios funcionales, aditivos o ingredientes alimentarios, o productos farmacéuticos, para el tratamiento y/o prevención de la hipertensión arterial en todas sus formas en un ser humano o en un animal y para el tratamiento y/o la prevención de cualquier desorden asociado con la hipertensión arterial en un ser humano o en un animal.
Abstract:
The invention provides an expression vector for expression of recombinant vitellogenin in an eukaryotic host. An eukaryotic host, including yeast comprising the expression vector according to the invention may be used as a feed or feed additive for both oviparous and non-oviparous animals, including domesticated animals. A transgenic yeast according to the invention contain increased levels of essential amino acids and fatty acids and may be used as a direct feed or fed to an intermediate live feed such as rotifers or artemias to increase the survival rates of oviparous animal or broodstock.
Abstract:
A molecule capable of potentiating immune responses is described, as well as methods for using the molecule to enhance immune responses and enhance dendritic cell function. Also described are compositions containing the molecule and methods for using the compositions to treat or immunize individuals.