The Polynucleotide Is Coated With Or Encapsulated Within A Lipid Containing Material (e.g., Liposome, Etc.) Patents (Class 435/458)
  • Patent number: 7763772
    Abstract: The present invention provides nucleotide sequences and a corresponding amino acid sequence of auxin overproduction mutants. Also provided are methods to improve plant growth, development, differentiation, increased tolerance to drought and delayed senescence as well as plants with drought tolerance and delayed senescence.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: July 27, 2010
    Assignee: Purdue Research Foundation
    Inventors: Ray A Bressan, Paul M Hasegawa
  • Patent number: 7741300
    Abstract: This invention relates to a vaccine and a method for immune activation which is effective for eliciting both a systemic, non-antigen specific immune response and a strong antigen-specific immune response in a mammal. The method is particularly effective for protecting a mammal from a disease including cancer, a disease associated with allergic inflammation, an infectious disease, or a condition associated with a deleterious activity of a self-antigen. Also disclosed are therapeutic compositions useful in such a method.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: June 22, 2010
    Assignee: National Jewish Medical and Research Center
    Inventors: Steven W. Dow, Robyn E. Elmslie, Jurgen Karl Johannes Schwarze, Erwin W. Gelfand
  • Publication number: 20100129313
    Abstract: This invention provides an anti-cancer immunogenic agent(s) (e.g. vaccines) that elicit an immune response specifically directed against renal cell cancers expressing a G250 antigenic marker. Preferred immunogenic agents comprise a chimeric molecule comprising a kidney cancer specific antigen (G250) attached to a granulocyte-macrophage colony stimulating factor (GM-CSF). The agents are useful in a wide variety of treatment modalities including, but not limited to protein vaccination, DNA vaccination, and adoptive immunotherapy.
    Type: Application
    Filed: June 5, 2009
    Publication date: May 27, 2010
    Applicant: The Regents of the University of California
    Inventors: Arie Belldegrun, Cho-Lea Tso
  • Patent number: 7723086
    Abstract: An apparatus for encapsulating cells is disclosed. According to one embodiment, the apparatus includes an indirect-pumping dispenser for dispensing a cell suspension into an encapsulation solution through an outlet of the dispenser. The apparatus also includes a dipping mechanism that is attachable to the outlet of the dispenser. The dipping mechanism is adapted to dip the dispenser outlet in the encapsulation solution to allow the cell suspension dispensed thereat to come into contact with the encapsulation solution.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: May 25, 2010
    Assignee: Agency for Science, Technology + Research
    Inventors: Hanry Yu, Hai Ting Ho, Jing Zhang
  • Patent number: 7709455
    Abstract: The present invention provides pharmaceutical compositions and methods for liver proliferation and protection. Specifically useful are VEGFR modulating agents capable of promoting liver growth. Disclosed compositions and methods may be useful for promoting proliferation or treating pathological conditions in other organs of significant biological functions.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: May 4, 2010
    Assignee: Genentech, Inc.
    Inventors: Napoleone Ferrara, Kenneth J Hillan, Jennifer Le Couter
  • Patent number: 7704962
    Abstract: The present invention provides short antisense oligonucleotide compositions and methods for their use in the treatment of Bcl-2-associated diseases like cancer, such as follicular lymphoma (FL). The antisense oligonucleotides contain sequences that hybridize to Bcl-2 nucleic acids, the gene products of which are known to interact with the tumorigenic protein Bcl-2. The use of novel short antisense oligonucleotides, from 7 bases to 9 bases in length, is described in this invention. The invention also describes certain specific sequences which are longer than 9 bases and are 11 or 15 bases long. Used alone, or in conjunction with other antisense oligonucleotides, these antisense oligonucleotide compositions inhibit the proliferation of cancer cells.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: April 27, 2010
    Assignee: Board of Regents, The University of Texas System
    Inventors: Ana M. Tari, Gabriel Lopez-Berestein, Yolanda Gutierrez-Puente
  • Patent number: 7700571
    Abstract: The present invention provides pharmaceutical compositions and methods for liver proliferation and protection. Specifically useful are VEGFR modulating agents capable of promoting liver growth. Disclosed compositions and methods may be useful for promoting proliferation or treating pathological conditions in other organs of significant biological functions.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: April 20, 2010
    Assignee: Genentech, Inc.
    Inventors: Napoleone Ferrara, Kenneth J. Hillan, Jennifer Le Couter
  • Patent number: 7700568
    Abstract: This invention provides methods for increasing the susceptibility of cells to DNA-damaging agents, and for treating tumors in a subject, comprising introducing antisense that prevent expression of DNA dependent protein kinase catalytic subunit Ku70 or Ku80, wherein the antisense is in an amount sufficient to increase the sensitivity of the cells and tumors to heat, chemical, or radiation-induced DNA damage.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: April 20, 2010
    Assignee: Sloan-Kettering Institute for Cancer Research
    Inventors: Gloria C. Li, Paul W. J. J. Burgman
  • Publication number: 20100081706
    Abstract: The present invention is drawn a new class of oligodeoxynucleotides (ODNs) that inhibit ODN-activation of Toll-like receptor (TLR) 9. Particular 4-5 base extensions at the 5? and of the previously described core inhibitory ODN sequence enhances their inhibitory activity against human cells expressing human TLR9. Methods of use also are provided.
    Type: Application
    Filed: August 4, 2008
    Publication date: April 1, 2010
    Applicant: University of Iowa Research Foundation
    Inventors: ROBERT ASHMAN, Petar Lenert
  • Patent number: 7687070
    Abstract: The present invention provides certain cationic lipids containing stigmasterol, ergosterol and cholic acid groups. Compounds of the invention are useful, either alone or in combination with other lipid aggregate-forming components (e.g., DOPE, DOSPA, DOTMA or cholesterol) for formulation into liposomes or other lipid aggregates. Such aggregates are cationic, and able to form stable complexes with anionic macromolecules, such as nucleic acids. The cationic lipids of the invention are useful in methods of transfecting cells, particularly to introduce nucleic acids into cells. The invention also related to kits for the preparation of lipid aggregates and to lipid aggregates and compositions for transfection of cells.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: March 30, 2010
    Assignee: Life Technologies Corporation
    Inventors: Guililat Gebeyehu, Joel A. Jessee
  • Patent number: 7683035
    Abstract: The present invention relates to a method of stabilizing and/or isolating nucleic acids, wherein a biological sample containing nucleic acids is contacted with a cationic compound. The invention also relates to said cationic compound per se and to the use of said cationic compound in stabilizing and/or isolating nucleic acids. Furthermore, the invention relates to pharmaceutical compositions, diagnostic compositions, and to compositions used in research, which include cationic compounds or a complex being formed upon contact of said cationic compound with a nucleic acid.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: March 23, 2010
    Assignee: Qiagen, GmbH
    Inventors: Christoph Erbacher, Helge Bastian, Ralf Wyrich, Uwe Oelmüller, Thomas Manz
  • Patent number: 7682626
    Abstract: A class of polymers for delivery of polynucleotides to cells in described. More specifically, amphiphilic polyvinylethers and compositions containing amphiphilic polyvinylethers are described.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: March 23, 2010
    Assignee: Roche Madison Inc.
    Inventors: David B. Rozema, Darren Wakefield
  • Publication number: 20100055684
    Abstract: The invention provides a nucleic-acid-transfecting composition which exhibits low cytotoxicity, which facilitates an effective nucleic acid transfection into a cell, and which improves expression of the nucleic acid in the cell. The composition for transfecting a nucleic acid into a cell, contains a di(C12-16 alkyl)dimethylammonium halide and a phospholipid.
    Type: Application
    Filed: June 29, 2007
    Publication date: March 4, 2010
    Applicants: HOKKAIDO SYSTEM SCIENCE CO., LTD., DAIICHI FINE CHEMICAL CO., LTD.
    Inventors: Hiroshi Kikuchi, Hideo Kobayashi, Kouichi Hashimoto, Ayako Iijima, Daigo Asano, Junko Yasuda
  • Publication number: 20100041152
    Abstract: Plasmid-lipid particles which are useful for transfection of cells in vitro or in vivo are described. The particles can be formed using either detergent dialysis methods or methods which utilize organic solvents. The particles are typically 65-85 nm, fully encapsulate the plasmid and are serum-stable.
    Type: Application
    Filed: March 16, 2009
    Publication date: February 18, 2010
    Applicants: TEKMIRA PHARMACEUTICALS CORPORATION, THE UNIVERSITY OF BRITISH COLUMBIA
    Inventors: Jeffery J. Wheeler, Michael J. Hope, Pieter R. Cullis, Marcel B. Bally
  • Patent number: 7655468
    Abstract: Novel stable, concentrated, biologically active and ready-to-use lipid-comprising drug delivery complexes and methods for their production are described. The biological activity of the complexes produced are comparable to the formulations prepared according to the prior art admixture method and upon purification, the complexes produced by the method of this invention are 50 to 500 fold more concentrated than the complexes formed by admixture. The method described herein provides for the large scale production of lipid-comprising drug delivery systems useful for gene therapy and other applications.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: February 2, 2010
    Assignee: University of Pittsburgh
    Inventors: Leaf Huang, Xiang Gao, Frank L. Sorgi
  • Patent number: 7638331
    Abstract: The present invention provides methods and constructs for selectively expressing an Apoptosis-Inducing Gene (AIG) in a population of cells that overexpress cyclooxygenase-2 (COX-2) to induce apoptosis in the cell. To achieve this goal a chimeric gene construct is used that comprises a cyclooxygenase-2 promoter (COX-2 promoter) that is operably linked to at least one AIG such that the COX-2 promoter is activated in cells that overexpress COX-2, thereby resulting in transcription and translation of the AIG, which in turn activates apoptosis in the cell. Thus, apoptosis is selectively induced in only those cells capable of overexpressing COX-2.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: December 29, 2009
    Assignee: The Administration of the Tulane Rducation Fund
    Inventors: W. Terrance Godbey, Anthony Atala
  • Publication number: 20090265796
    Abstract: The invention provides an isolated and purified DNA molecule comprising at least one DNA segment, a biologically active subunit or variant thereof, of a circular intermediate of adeno-associated virus, which DNA segment confers increased episomal stability, persistence or abundance of the isolated DNA molecule in a host cell. The invention also provides a composition comprising at least two adeno-associated virus vectors.
    Type: Application
    Filed: August 7, 2007
    Publication date: October 22, 2009
    Inventors: John F. Engelhardt, Dongsheng Duan
  • Patent number: 7601872
    Abstract: Disclosed are compounds capable of facilitating transport of biologically active agents or substances into cells having the general structure: wherein Q is selected from the group consisting of N, O and S; L is any bivalent organic radical capable of linking each Q, such as C, CH, (CH2)l, or {(CH2)i-Y—(CH2)j}k, wherein Y is selected from the group consisting of CH2, an ether, a polyether, an amide, a polyamide, an ester, a sulfide, a urea, a thiourea, a guanidyl, a carbamoyl, a carbonate, a phosphate, a sulfate, a sulfoxide, an imine, a carbonyl, and a secondary amino group and wherein Y is optionally substituted by —X1-L?-X2-Z or -Z; R1-R6, independently of one another, are selected from the group consisting of H, —(CH2)p-D-Z, an alkyl, an alkenyl, an aryl, and an alkyl or alkyl ether optionally substituted by one or more of an alcohol, an aminoalcohol, an amine, an amide, an ether, a polyether, a polyamide, an ester, a mercaptan, an alkylthio, a urea, a thiourea, a guanidyl, or a carbamoyl group, and w
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: October 13, 2009
    Assignee: Life Technologies Corporation
    Inventors: Yongliang Chu, Malek Masoud, Gulilat Gebeyehu
  • Patent number: 7601367
    Abstract: Described is a deliverable composition with low toxicity comprising an amphipathic compound, a polycation, and a siRNA. The composition may be used in the process of delivering a siRNA to an animal cell or more particularly, a mammal cell.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: October 13, 2009
    Assignee: Mirus Bio LLC
    Inventors: Sean D. Monahan, David L. Lewis, Hans Herweijer, Jon A. Wolff, James E. Hagstrom, Aaron G. Loomis, Vladimir Trubetskoy, Lori Higgs
  • Patent number: 7598421
    Abstract: The invention provides a lipid of general formula (I) or (II): wherein X1, X2 and R1 to R5 are as defined herein. Such lipids are used to form complexes with a biologically-active material such as a nucleic acid, peptide or small molecule for delivering the biologically-active material to cells. The complexes may incorporate an integrin-binding peptide and, when the biologically-active material is DNA, thereby constitute a LID complex.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: October 6, 2009
    Assignee: UCL Biomedica PLC
    Inventors: Helen C. Hailes, Alethea B. Tabor, John B. Wong, Michael Pilkington-Miksa, Stephen L. Hart, Christopher A. Hurley
  • Publication number: 20090233366
    Abstract: Composition with weak cytotoxicity for introducing a nucleic acid, such as a short oligonucleotide or a gene, into a cell for expression of the gene in the cell. The composition includes a lipid and a compound represented by a formula (I): (R1)n-R2-R3??(I) wherein (R1)n represents a polyamino acid residue consisting of a total of n amino acid residues, which are identical to or different from one another, the n residues being selected from an arginine residue, a lysine residue, and a histidine residue, and n being an integer of from 4 to 16; R2 represents a single bond or an amino acid residue; and R3 represents a phospholipid residue with 1 or 2 identical or different unsaturated fatty acid residues having from 12 to 20 carbon atoms. The composition is administered or supplied to a cell together with a nucleic acid.
    Type: Application
    Filed: April 29, 2009
    Publication date: September 17, 2009
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Hiroshi Kikuchi, Kouichi Hashimoto, Hideo Kobayashi, Ayako Iijima, Daigo Asano
  • Patent number: 7585675
    Abstract: A method of treating or preventing SHIV or HIV infection in a subject comprising administering a therapeutically effective amount of a antisense IL-4. The antisense IL-4 inhibits viral replication in the liver, lungs, spleen, and even the lymph nodes of the subject. Further, the antisense IL-4 can be used in combination with other antiretroviral agents or vaccines.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: September 8, 2009
    Assignee: University of Kansas Medical Center
    Inventors: Opendra Narayan, Shilpa Buch
  • Publication number: 20090214629
    Abstract: A method for efficiently transferring a gene to a target cell is provided. A method of transferring a gene to a target cell, including adding or administering a positively charged complex (A) composed of the gene and a cationic substance and gas-filled microparticles (B) to a target cell-containing composition or a living body and then exposing the target cell-containing composition or the living body to a low-frequency ultrasound.
    Type: Application
    Filed: May 26, 2005
    Publication date: August 27, 2009
    Applicant: Mebiopharm Co., Ltd
    Inventors: Kazuo Maruyama, Tomoko Takizawa, Kosuke Hagisawa, Toshihiko Nishioka, Hironobu Yanagie
  • Publication number: 20090191171
    Abstract: The present invention provides methods and compositions for reprogramming somatic cells to a more primitive state, such as induced pluripotent stem cells, using homologous recombination. The induced pluripotent stem cells generated by the methods of the present invention are useful in a variety of therapeutic applications in the treatment and prevention of diseases and disorders.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 30, 2009
    Inventor: Yupo Ma
  • Publication number: 20090186097
    Abstract: The present invention provides ungulates, including pigs, expressing CTLA4-Ig, as well as tissue, organs, cells and cell lines derived from such animals. Such animals, tissues, organs and cells can be used in research and medical therapy, including xenotransplanation. In addition, methods are provided to prepare organs, tissues and cells expressing the CTLA4-Ig for use in xenotransplantation, and nucleic acid constructs and vectors useful therein.
    Type: Application
    Filed: August 9, 2006
    Publication date: July 23, 2009
    Inventor: David Lee Ayares
  • Publication number: 20090186805
    Abstract: Disclosed are methods and compositions to genetically modify substantially intact cells having cosmetic function to enhance the cosmetic appearance in mammals so as to enhance and/or maintain a biochemical and/or physiological process that has a positive effect on cosmetic appearance. The methods and compositions may provide cosmetic benefits such as reduced skin sagging, increased skin thickness, reduced wrinkles, increased skin thickness and collagen content, increased skin tone and elasticity, increased skin hydration, and improved skin texture and color.
    Type: Application
    Filed: January 2, 2009
    Publication date: July 23, 2009
    Inventors: Aaron Thomas Tabor, John Watson Harmon
  • Publication number: 20090180996
    Abstract: The invention relates to methods for altering the fate or differentiation status of somatic cells by RNA transfer. These methods can be used to transdifferentiate or dedifferentiate somatic cells of one phenotype or lineage into pluripotent cells or into somatic cells of a different lineage or phenotype.
    Type: Application
    Filed: November 10, 2008
    Publication date: July 16, 2009
    Inventors: Zeki Beyhan, Arif Kocabas, Jose Bernardo Cibelli, Steven T. Suhr
  • Publication number: 20090181911
    Abstract: Neurovascular disorder critically contributes to the development and pathogenesis of Alzheimer's disease (AD). Transcriptional profiling of human brain endothelial cells (BEC) defines a subset of age-independent genes significantly altered in AD including the homebox gene GAX whose expression controls vascular phenotype and is low in AD. By using viral-mediated GAX gene silencing and transfer, restoring GAX expression in AD BEC is angio-genic, transcriptionally suppresses the AFX1 forkhead transcription factor-mediated apoptosis, and increases the levels of a major amyloid ?-peptide (A?) clearance receptor, the low density lipoprotein receptor-related protein 1 (LRP-1) at the blood-brain barrier. In a mouse model of Alzheimer's disease, deletion of the Gax gene results in reductions in brain capillary density and the resting cerebral blood flow, loss of angiogenic brain response to hypoxia, and an impaired A? brain efflux caused by reduced LRP-1 levels.
    Type: Application
    Filed: August 3, 2006
    Publication date: July 16, 2009
    Inventors: Benslav V. Zlokovic, Zhenhua Wu, Rashid Deane
  • Patent number: 7531522
    Abstract: A method for the production of fungus resistant transgenic plants, plant cells or plant tissue comprising the introduction of an Ab, rAb, rAb fragment or fusion or vector of the invention or the vectors of the composition of the invention into the genome of a plant, plant cell or plant cell tissue and a transgenic plant cell comprising stably integrated into the genome a polynucleotide or vector of the invention or the vectors of the composition of the invention.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: May 12, 2009
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Dieter Peschen, Rainer Fischer, Stefan Schillberg, Yu-Cai Liao, Simone Dorfmüller
  • Patent number: 7524680
    Abstract: 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.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: April 28, 2009
    Assignee: Roche Madison Inc.
    Inventors: Jon A. Wolff, James E. Hagstrom, Vladimir G. Budker, Vladimir S. Trubetskoy
  • Patent number: 7514098
    Abstract: The in vivo delivery of nucleic acids is targeted by delivery of the nucleic acid in a complex with cross-linked nanoparticles; where the nanoparticles comprise cross-linked neutral amphipathic molecules, cationic amphipathic molecules and targeting amphipathic molecules. Optionally the cationic and targeting amphipathic molecules are also cross-linked. A targeting moiety present on the targeting amphipathic molecule provides for selective delivery of the complex to a predetermined target site, e.g. blood vessels, endothelial cells, tumor cells, liver cells, and the like.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: April 7, 2009
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Mark D. Bednarski, Samira Guccione, King Chuen Li
  • Publication number: 20090048198
    Abstract: The present invention relates to compositions and methods for use in delivering nucleic acids and other agents into cells and tissues. In particular, the present invention provides lipid mixtures at the gel-liquid crystalline phase transition providing superior lipofection activity for transferring materials into cells and tissues.
    Type: Application
    Filed: March 3, 2008
    Publication date: February 19, 2009
    Applicant: Northwestern University
    Inventors: Rumiana Koynova-Tenchova, Li Wang, Robert C. MacDonald
  • Patent number: 7491538
    Abstract: A process and compound wherein nucleic acids can be modified with a host of molecules and maintain their ability to be expressed. A modifying chemical attachment of polyions to polynucleotides can be used to facilitate the change of tertiary structure of the nucleic acid and in some cases condensation of nucleic acids into smaller, charged particles useful in delivering the nucleic acid to a cell.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: February 17, 2009
    Assignee: Mirus Bio LLC
    Inventors: Jon A. Wolff, Vladimir G. Budker, James E. Hagstrom, Paul M. Slattum
  • Patent number: 7482160
    Abstract: A method of forming polymers in the presence of nucleic acid using template polymerization. These methods can be used for the delivery of nucleic acids, for condensing the nucleic acid, for forming nucleic acid binding polymers, for forming supramolecular complexes containing nucleic acid and polymer, and for forming an interpolyelectrolyte complex.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: January 27, 2009
    Assignee: Roche Madison Inc.
    Inventors: Sean D. Monahan, David B. Rozema, Vladimir Trubetskoy, Paul M. Slattum, Jon A. Wolff, Vladimir G. Budker, James E. Hagstrom, Lisa J. Hanson
  • Patent number: 7479573
    Abstract: Disclosed are compounds capable of facilitating transport of biologically active agents or substances into cells having the general structure: wherein Q is selected from the group consisting of N, O and S; L is any bivalent organic radical capable of linking each Q, such as C, CH, (CH2)l, or {(CH2)i—Y—(CH2)j}k, wherein Y is selected from the group consisting of CH2, an ether, a polyether, an amide, a polyamide, an ester, a sulfide, a urea, a thiourea, a guanidyl, a carbamoyl, a carbonate, a phosphate, a sulfate, a sulfoxide, an imine, a carbonyl, and a secondary amino group and wherein Y is optionally substituted by —X1—L?—X2—Z or —Z; R1—R6, independently of one another, are selected from the group consisting of H, —(CH2)p-D-Z, an alkyl, an alkenyl, an aryl, and an alkyl or alkyl ether optionally substituted by one or more of an alcohol, an aminoalcohol, an amine, an amide, an ether, a polyether, a polyamide, an ester, a mercaptan, an alkylthio, a urea, a thiourea, a guanidyl, or a carbamoyl group, and w
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: January 20, 2009
    Assignee: Invitrogen Corporation
    Inventors: Yongliang Chu, Malek Masoud, Gulilat Gebeyehu
  • Patent number: 7476401
    Abstract: Compositions and methods for delivery of proteins and peptides to mammalian cells in vitro are described. Specifically, polypeptide-surfactant complexes formed from noncovalent hydrophobation of polypeptides and reversible hydrophobic modification of polypeptides are described. The compositions can be used to delivery positively charged, negatively charged and charge neutral polypeptides to cells.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: January 13, 2009
    Assignee: Mirus Bio LLC
    Inventors: Sean D. Monahan, Vladimir G. Budker, Kirk Ekena, Lisa Nader
  • Patent number: 7470539
    Abstract: Polyampholyte are able to condense nucleic acid to form small complexes which can be utilized in the delivery of nucleic acid to mammalian cells. The polyampholytes can be formed prior to interaction with nucleic acid or they can be formed in the presence of nucleic acid. Stabilized polycation/nucleic acid complexes can be modified to reduce the positive charge of the polycation and add targeting ligands without destabilizing the complex. The resultant particles retain their small size and are more effective in delivery of nucleic acid to cells in vivo.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: December 30, 2008
    Inventors: Darren H. Wakefield, David B. Rozema, Jon A. Wolff, Vladimir Trubetskoy, James E. Hagstrom, Vladimir G. Budker, Jason Klein, So Wong
  • Patent number: 7470817
    Abstract: Disclosed are compounds capable of facilitating transport of biologically active agents or substances into cells having the general structure: wherein Q is selected from the group consisting of N, O and S; L is any bivalent organic radical capable of linking each Q, such as C, CH, (CH2)I, or {(CH2)i-Y—(CH2)j}k, wherein Y is selected from the group consisting of CH2, an ether, a polyether, an amide, a polyamide, an ester, a sulfide, a urea, a thiourea, a guanidyl, a carbamoyl, a carbonate, a phosphate, a sulfate, a sulfoxide, an imine, a carbonyl, and a secondary amino group and wherein Y is optionally substituted by —X1-L?-X2-Z or -Z; R1-R6, independently of one another, are selected from the group consisting of H, —(CH2)p-D-Z, an alkyl, an alkenyl, an aryl, and an alkyl or alkyl ether optionally substituted by one or more of an alcohol, an aminoalcohol, an amine, an amide, an ether, a polyether, a polyamide, an ester, a mercaptan, an alkylthio, a urea, a thiourea, a guanidyl, or a carbamoyl group, and w
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: December 30, 2008
    Assignee: Invitrogen Corporation
    Inventors: Yongliang Chu, Malek Masoud, Gulilat Gebeyehu
  • Patent number: 7470781
    Abstract: The invention concerns a composition containing stabilised particles of cationic transfection agent(s)/nucleic acid complexes characterised in that it includes besides said transfection agent and nucleic acid at least a non-ionic surfactant in sufficient amount for preventing the aggregation of the particles in course of time. In a preferred embodiment, the surfactant is a polyoxyalkylene or a derivative thereof.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: December 30, 2008
    Assignee: Aventis Pharma S.A.
    Inventors: Joël Crouzet, Bruno Pitard
  • Publication number: 20080317840
    Abstract: The present invention provides liposomal compositions and methods of using such compositions in vitro and in vivo. In particular, the present invention provides stable, polymer-caged liposomes comprising a pH responsive delivery mechanism for delivery of nucleic acids, peptides, small molecules, drugs, etc. in vitro and in vivo.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 25, 2008
    Applicant: Northwestern University
    Inventors: Sang-Min Lee, SonBinh Nguyen, Thomas V. O'Halloran
  • Publication number: 20080312174
    Abstract: Compositions for siRNA delivery are described which include water soluble degradable crosslinked cationic polymers having a water soluble polyethylene glycol component, a cationic polyethyleneimine component and a degradable unit component. The composition may be used to deliver siRNA to cells, particularly cancer cells. The composition may be applied to a solid surface such as a multiwell plate so that the delivery of siRNA may be carried out on the solid surface.
    Type: Application
    Filed: May 23, 2008
    Publication date: December 18, 2008
    Applicant: Nitto Denko Corporation
    Inventors: Lei Yu, Gang Zhao, Nianchun Ma, Xin Zhao, Jian Liu, Yasunobu Tanaka
  • Publication number: 20080305157
    Abstract: Catanionic vesicles including solute ion, methods for forming these, and methods of using these.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 11, 2008
    Applicant: University of Maryland Office of Technology Commercialization
    Inventors: Douglas S. English, Srinivasa Raghavan, Philip R. DeShong, Xiang Wang, Emily J. Danoff, Jaeho Lee
  • Patent number: 7455856
    Abstract: A bisphosphonic acid of the general formula (I) wherein R1 is H, OH, C1-C6 alkyl C1-C6 alkoxy, C1-C6 hydroxyalkyl, C1-C6 aminoalkyl, C1-C6 halogen alkyl X is a direct bond, alkylen group with 1 to 20 carbon atoms, (CH3)m—(OCR3HCH2)n—(O)o—, wherein R3 is H or CH3 and m is 0 or a number from 1 to 6, n is a number from 1 to 10, preferably 1 to 6, and o is 0 or 1, —(CR4HCH2O)p—, wherein R4 is H or CH3, p is a number from 1 to 10, preferably 1 to 6, (CH3)q—(OCR5HCH2)r—(O)s—(CH3)t—, wherein R5 is H or CH3 and q is 0 or a number from 1 to 6, r is a number from 1 to 10, preferably 1 to 6, and s is 0 or 1, and t is a number from 1 to 6, R2 is a group of the formula (II) as well as their physiologically compatible derivatives in particular salts and trimethyl silyl derivatives.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: November 25, 2008
    Assignee: MCS Micro Carrier Systems GmbH
    Inventors: Wolfgang Greb, Oleg Shyhskov, Gerd-Volker Röschenthaler, Verena Hengst
  • Patent number: 7439066
    Abstract: The present invention provides novel pseudotyped retroviral vectors that can transduce human and other cells. Vectors are provided that are packaged efficiently in packaging cells and cell lines to generate high titer recombinant virus stocks expressing novel envelope glycoproteins. The present invention further relates to compositions for gene therapy.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: October 21, 2008
    Assignee: University of Iowa Research Foundation
    Inventors: Paul B. McCray, Jr., Beverly L. Davidson, Colleen Stein
  • Patent number: 7435595
    Abstract: The invention relates to a method for the transfer of molecular substances, for example proteins or nucleic acids in cells, in the case of using DNA combined with a possible gene expression. A prokaryotic nucleic acid-binding protein is used for the transfer, which is preferably obtained from a thermostable organism. Where the substance to be transferred is a nucleic acid, the protein forms a reversible complex with the nucleic acid. The prokaryotic protein condenses and compacts the nucleic acids. Said nucleic acids can be taken up in the target cells after suitable incubation.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: October 14, 2008
    Assignee: ACGT ProGenomics AG
    Inventors: Gerald Boehm, Dirk Esser
  • Publication number: 20080226605
    Abstract: Disclosed are methods and compositions for facilitating entry of compounds to cells. In some forms, the compositions comprise one or more aminoglycosides and one or more lipids. The disclosed compositions can also comprise one or more compounds or compositions. It was discovered that the disclosed compositions increase the efficiency of delivery of compounds into cells. The disclosed compositions and methods increase both delivery into cells and the activity of compounds once delivered into cells. For example, the disclosed methods and compositions can be used to deliver nucleic acids to cells and to thereby increase the activity of such nucleic acids delivered to cells. The disclosed compositions can be used to deliver compounds and compositions to cells in vitro, ex vivo and in vivo. Delivery can be, for example, non-specific, non-directed, non-targeted, specific, directed or targeted.
    Type: Application
    Filed: May 19, 2006
    Publication date: September 18, 2008
    Inventors: Dev Priya Arya, Carlo V. Catapano
  • Publication number: 20080229438
    Abstract: The invention relates to a method of producing a protein of interest, comprising making a non-human transgenic mammal that produces said protein in its milk, obtaining said milk from the non-human transgenic mammal and purifying said protein of interest from the milk. Transgenic bovine animals were generated, which are able to produce human growth hormone in mammary glands. The method involves cloning of a genetic construct encoding hGH gene and beta casein promoter conveniently in an expression vector. It also includes transfection procedures into fetal bovine somatic cells, generally fibroblasts, and the nuclear transfer into enucleated bovine oocytes, generating thus transgenic embryos.
    Type: Application
    Filed: July 11, 2007
    Publication date: September 18, 2008
    Applicant: Sterrenbeld Biotechnologie North America, Inc.
    Inventors: Carlos Alberto Melo, Lino Baranao
  • Patent number: 7422902
    Abstract: Novel lipid-nucleic acid particulate complexes which are useful for in vitro or in vivo gene transfer are described. The particles can be formed using either detergent dialysis methods or methods which utilize organic solvents. Upon removal of a solubilizing component (i.e., detergent or an organic solvent) the lipid-nucleic acid complexes form particles wherein the nucleic acid is serum-stable and is protected from degradation. The particles thus formed have access to extravascular sites and target cell populations and are suitable for the therapeutic delivery of nucleic acids.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: September 9, 2008
    Assignee: The University of British Columbia
    Inventors: Jeffery J. Wheeler, Marcel B. Bally, Yuan-Peng Zhang, Dorothy L. Reimer, Michael Hope, Pieter R. Cullis, Peter Scherrer
  • Publication number: 20080187998
    Abstract: Oligomeric sulfonamides for use as endosomolytic reagents for transfection with polymeric or lipid-based vectors are described. A mixture of an oligomeric sulfonamide with a polymeric or lipid-based gene carrier and a nucleic acid results in a polyplex that exhibits 6-12-fold better gene expression than controls. A method of transfecting cells in vitro is carried out by contacting cultured mammalian cells with an effective amount of a polyplex.
    Type: Application
    Filed: February 1, 2007
    Publication date: August 7, 2008
    Inventors: Han Chang Kang, You Han Bae
  • Publication number: 20080188436
    Abstract: A composition comprising recombinant, intact minicells that contain a therapeutic nucleic acid molecule is disclosed. Methods for purifying a preparation of such minicells also are disclosed. Additionally, a genetic transformation method is disclosed, which comprises (i) making recombinant, intact minicells available that contain a plasmid comprised of a first nucleic acid segment, and (ii) bringing the minicells into contact with mammalian cells that are engulfing-competent, such that the minicells are engulfed by the mammalian cells, which thereafter produce an expression product of the first nucleic acid segment.
    Type: Application
    Filed: January 24, 2008
    Publication date: August 7, 2008
    Applicant: EnGeneIC Molecular Delivery Pty. Ltd.
    Inventors: Himanshu BRAHMBHATT, Jennifer Macdiarmid