Patents

Patents are legal documents drawn up by inventors and lawyers and granted by various patent offices around the world, to protect the inventors' intellectual property. The short description accompanying each patent in this Patents section is therefore taken from the legal document as is, with minor corrections for Greek symbols and obvious spelling errors. The patents included in this section may be for material products (defensins or defensin-like peptides or nucleic acid sequences, synthetic or natural) or for novel methods of detecting, quantitating, synthesizing, or delivering antimicrobial peptides/nucleic acid sequences in general. The curators' criterion for inclusion in this section is broader for novel methods than for material products, in the hope that these methods may in future be similarly applied to defensins.

Patents in which the defensins or defensin-like material products and methods as above are not novel, such as biomarker sets containing unmodified defensin or defensin-like peptides or oligonucleotides, are excluded from this section. The exception to such exclusions is where the patent provides other novel defensin-related material products or methods in addition to those non-novel of the biomarker set itself. This exclusion is because the reasonable presence of defensin or defensin-like sequences or indeed any other sequences in patented biomarker sets is necessarily attributed to some prior discovery of disease state correlation with such sequences. The curators have observed therefore that the novel discovery in biomarker-related patents is often the method of biomarker array analysis and validation as well as its resultant implications for diagnostics and prognostics. The expert evaluation of such biomarker analysis and validation is well outside the scope of the Defensins Knowledgebase. The reader is respectfully referred to a biomarker database specific to the disease to perform his own assessment of the validity of the biomarker.

Methods not pertaining to the antimicrobial activity of defensins, but where defensins or antimicrobial peptides or small cationic peptides or disulphide-bonded peptides or their respective nucleic acid sequences are suggested in some unambiguous detail to play a useful role in the method, with or without supporting experimental evidence, are included as well in this section. Patents in which natural defensins are up/downregulated in a clearly defined signal transduction pathway as a result of the unrelated patented novel compound or method are also included. And lastly, all patents showing experimental work done with defensins or antimicrobial peptides or small cationic peptides or disulphide-bonded peptides or their respective nucleic acid sequences, where such peptides or nucleic acid sequences are not the experimental controls, are included without exception.

The data in this section have been extracted from the academic version of SciFinder Scholar 2007 and from public Google search - a wide range of defensin-related patents are included.

Keywords:

Results 61 - 70 of 333

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Last updated: 20th February 2008

Patents
Patent No.: US 6960705
Nucleic acid encoding a hypersensitive response elicitor from Xanthomonas campestris.
Applicant: Wei ZM, Swanson SS, Fan H (2005)
The present invention is directed to an isolated DNA molecule encoding a Xanthomonas campestris hypersensitive response elicitor protein or polypeptide. The DNA molecule that encodes such protein has the following uses: imparting disease resistance to plants, enhancing plant growth, controlling insects on plants, imparting stress resistance, imparting post-harvest disease resistance, maximizing the benefit of or overcoming a yield penalty associated with a transgenic trait, inhibiting desiccation of cuttings from ornamental plants, and promoting early flowering of an ornamental plant. These can be achieved by expression of the hypersensitive response elicitor in transgenic plants. Transgenic plants, plants seeds, and cuttings from such transgenic plants are also disclosed.

Patent No.: US 6960441
Assays for the detection of human defensin polypeptide (Def-X).
Applicant: Bougueleret L, Chumakov I (2005)
The present invention relates to a novel human polypeptide defensin Def-X, genomic DNA and cDNA encoding Def-X, vectors containing Def-X encoding polynucleotides, and cells transformed with these vectors. The invention also provides for the use of Def-X polypeptides as an antibiotic, a cytotoxic, repair, and endocrine regulatory agent, and as pesticide. Def-X can also be used as agent, a cosmetic or pharmaceutical compositions for the treatment of microbial infections, in particular bacterial, fungal, and viral infections, parasitic infections, cancer, inflammation, and immune deficiencies. The invention provides diagnostic methods and kits for the determination of a microbial or parasitic infection and/or inflammation; also provided are methods of screening for predisposition to immune deficiencies or cancer.

Patent No.: US 6946261
Efficient methods for producing anti-microbial cationic peptides in host cells.
Applicant: Burian J, Bartfeld D (2005)
Endogenously produced cationic antimicrobial peptides are ubiquitous components of host defenses in mammals, birds, amphibia, insects, and plants. Cationic peptides are also effective when administered as therapeutic agents. A practical drawback in cationic peptide therapy, however, is the cost of producing the agents. The methods described herein provide a means to efficiently produce cationic peptides from recombinant host cells. These recombinantly-produced cationic peptides can be rapidly purified from host cell proteins using anion exchange chromatography.

Patent No.: US 6919091
Compositions and methods for drug delivery using pH sensitive molecules.
Applicant: Trubetskoy VS, Hagstrom JE, Budker VG, Wolff JA, Rozema DB, Monahan SD (2005)
An polyampholyte is utilized in a condensed polynucleotide complex for purposes of nucleic acid delivery to a cell. The complex can be formed with an appropriate amount of positive and/or negative charge such that the resulting complex can be delivered to the extravascular space and may be further delivered to a cell.

Patent No.: US 6913919
Secreted and transmembrane polypeptides and nucleic acids encoding the same.
Applicant: Botstein D, Goddard A, Godowski PJ, Gurney AL, Roy MA, Wood WI (2005)
The present invention is directed to novel polypeptides and to nucleic acid molecules encoding those polypeptides. Also provided herein are vectors and host cells comprising those nucleic acid sequences, chimeric polypeptide molecules comprising the polypeptides of the present invention fused to heterologous polypeptide sequences, antibodies which bind to the polypeptides of the present invention and to methods for producing the polypeptides of the present invention.

Patent No.: US 6906172
Flexible processing apparatus for isolating and purifying viruses, soluble proteins and peptides from plant sources.
Applicant: Bratcher B, Garger SJ, Holtz RB, McCulloch MJ (2005)
A flexible automated apparatus for isolating and purifying viruses, proteins and peptides of interest from a plant material is disclosed, the apparatus being applicable for large scale purification and isolation of such substances from plant material. The flexible automated apparatus provides an efficient apparatus for isolating viruses, proteins and peptides of interest with little waste material. The automated apparatus for isolating viruses, proteins and peptides of interest includes a grinding apparatus for homogenizing a plant to produce a green juice, a means for adjusting the pH of and heating the green juice, a means for separating the target species, either virus or protein/peptide, from other components of the green juice by one or more cycles of centrifugation, resuspension, and ultrafiltration, and finally purifying virus particles by such procedure as PEG-precipitation or purifying proteins and peptides by such procedures as chromatography and/or salt precipitation.

Patent No.: US 6906035
Antimicrobial cationic peptides.
Applicant: Hancock REW, Karunaratne N (2005)
A novel class of cationic peptides having antimicrobial activity is provided. Examples of such peptides include NH2-KWKSFIKKLTTAVKKVLTTGLPALIS-COOH (SEQ ID NO:1) and NH2-KWKSFIKKLTSAAKKVVTTAKPLISS-COOH (SEQ ID NO:2). Also provided are methods for inhibiting the growth of bacteria utilizing the peptides of the invention. The peptides are particularly useful for inhibiting endotoxemia in a subject.

Patent No.: US 6896884
Human chitinase, its recombinant production, its use for decomposing chitin, its use in therapy or prophylaxis against infection diseases.
Applicant: Aerts JMFG (2005)
A new human chitinase having an amino acid sequence as shown in FIG. 1 or FIG. 2. Modified forms of it having a similar chitin-hydrolyzing activity, and antigenic peptides representing one of its epitopes. Recombinant production of the human chitinase by genetically engineered hosts or host cells. Recombinant nucleic acid encoding it, and human chitinase-specific oligonucleotides. Use for therapeutic or prophylactic treatment of humans against infection by chitin-containing pathogens, or for decomposing chitin, e.g. from chitin-based articles. Antibodies binding to the human chitinase. Diagnostic test kits comprising the human chitinase, its antigenic peptides, human chitinase antibodies, recombinant nucleic acid or oligonucleotides.

Patent No.: US 6891085
Nucleic acid encoding the FUS6 antimicrobial polypeptide of Agrotis ipsilon and its use to enhance disease resistance in a plant.
Applicant: Altier DJ, Herrmann R, Lu AL, McCutchen BF, Presnail JK, Weaver JL, Wong JFH (2005)
The methods and compositions of the present invention find use in impacting microbial pathogens and in enhancing disease resistance to pathogens, particularly by plants. The compositions of the invention include nucleic acid molecules encoding Fus6 polypeptides derived from Agrotis ipsilon that possess antimicrobial properties, particularly fungicidal properties. Further provided are plant cells plants, and seed thereof, transformed with the nucleic acid molecules of the invention so as to confer disease resistance on the plant.

Patent No.: US 6887981
Natural antibacterial peptide, the nucleotide sequence encoding it and the use thereof.
Applicant: Zhang Y, Chan H, Li P, He B, So S, Chung Y, Shang Q, Zhang Y (2005)
The invention provides a novel Bin1b protein, and its encoding polynucleotide. Bin1b protein is a natural antimicrobial peptide and associates to sperm maturation. The invention also discloses the preparation and uses of Bin1b protein and nucleic acid. Bin1b protein is useful to treat various diseases, e.g, urogenital infection. The invention also provides a pharmaceutical composition containing Bin1b protein.