摘要:
Methods for introducing a linear nucleic acid molecule of interest into a cell comprising a cell wall include use of nanoparticles coated with polyethylene glycol. In some embodiments, the cell comprising a cell wall is a plant cell. Methods include genetically or otherwise modifying plants and for treating or preventing disease in plant cells comprising a cell wall. Transgenic plants include a nucleic acid molecule of interest produced by regeneration of whole plants from plant cells transformed with linear nucleic acid molecules.
摘要:
Provided are methods for introducing a molecule of interest into a plant cell having a cell wall by using a QD-peptide conjugate having a quantum dot (QD) with one or more cell penetrating peptides (CPPs). Methods are provided for genetically or otherwise modifying plants and for treating or preventing disease in plant cells comprising a cell wall.
摘要:
The subject invention provides, for example, a novel approach to specifically induce intranasal and/or oral mucosal as well as humoral antibody response by administrating a mucosal delivery pentabody complex (MDPC). The MDPC is a complex formed by mixing a target antigen and a mucosal delivery pentabody (MDP) that has a strong affinity to the target antigen. The MDP is a fusion protein of a single domain antibody (sdAb; which binds to the target antigen specifically) to a pentamerization domain (which can include the B-subunit of an AB5 toxin family, including the B subunit of cholera toxin (CT) or heat-labile toxin (LT)). The pentamerization domain can self-assemble into a pentamer, through which a pentameric single domain antibody, or a pentabody, is formed.
摘要:
A method of introducing a molecule of interest into a plant cell having a cell wall includes interacting a gamma-zein peptide with a molecule of interest to form a gamma-zein linked structure. The gamma-zein linked structure is then placed in contact with the plant cell having a cell wall, and allowing uptake of the gamma-zein linked structure into the plant cell. Alternatively, a gene of interest can be expressed in a plant cell having an intact cell wall by interacting a gamma-zein peptide with the gene of interest to form a gamma-zein linked gene structure, allowing uptake of the gamma-zein linked gene structure into the plant cell, and expressing the gene of interest in the plant cell and its progeny.
摘要:
This invention pertains in part to the development of a vaccine for poultry against necrotic enteritis (NE). The vaccine utilizes a protective antigen that is a mutated, full-length, non-toxic Clostridium perfringens (Cp) α-toxin protein (Mcpa). Utility of this vaccine was demonstrated by reduction of lesion severity in NE challenge trails, for example. Also disclosed herein are novel approaches for producing this vaccine in significant quantities. One exemplified approach involves producing NE vaccine (mutated alpha toxin) in bacterial expression systems, preferably utilizing the Pseudomonas fluorescens system, for commercial use in controlling NE in the poultry industry. The subject vaccines can be administered preferably to chickens in several different ways. A novel, Type VI alpha toxin from chicken isolates of Cp is also disclosed.
摘要:
The subject application provides various compositions of matter directed to West Nile virus (WNV) polypeptides and fragments thereof and polynucleotides, vectors and transformed host cells that encode, direct the expression of, or produce WNV polypeptides as set forth herein. Methods of using the polypeptides and polynucleotides for the production of immune responses in individuals or detecting the presence of WNV specific or neutralizing antibodies are also provided herein.
摘要:
Provided are methods for introducing a molecule of interest into a plant cell having a cell wall by using dendrimers, and optionally one or more Cell Penetrating Peptides (CPPs). Methods are provided for genetically or otherwise modifying plants and for treating or preventing disease in plant cells comprising a cell wall.
摘要:
Methods for introducing a functionalized linear nucleic acid cassette molecule of interest into a plant cell comprising a cell wall include use of nanoparticles. In some embodiments, the cell comprising a cell wall is a cultured plant cell. Methods include genetically or otherwise modifying plant cells and for treating or preventing disease in any plant, especially crop plants. Transgenic plants include a nucleic acid molecule of interest produced by regeneration of whole plants from plant cells transformed with functionalized linear nucleic acid cassette molecules.
摘要:
Methods for introducing a linear nucleic acid molecule of interest into a cell comprising a cell wall include use of nanoparticles coated with polyethylene glycol. In some embodiments, the cell comprising a cell wall is a plant cell. Methods include genetically or otherwise modifying plants and for treating or preventing disease in plant cells comprising a cell wall. Transgenic plants include a nucleic acid molecule of interest produced by regeneration of whole plants from plant cells transformed with linear nucleic acid molecules.
摘要:
A method for producing a transgenic plant includes providing a nucleic acid molecule comprising at least two regions of nucleic acid sequence that lack sequence homology with genomic DNA of the plant cell, and at least two zinc finger nuclease recognition sites, wherein the at least two regions of nucleic acid sequence that lack sequence homology with genomic DNA of the plant cell flank the at least two zinc finger nuclease recognition sites. A plant cell or tissue having the nucleic acid molecule stably integrated into the genome of the plant cell is transformed. A plant is regenerated from the plant cell. Transgenic plants are produced by the method. Seeds are produced by the transgenic plants.