Patents by Inventor Tapas Das

Tapas Das has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120014877
    Abstract: The present invention relates to compositions comprising CpG rich DNA from Pseudomonas aeruginosa. The compositions optionally comprise a cupredoxin. The present invention includes specific CpG DNAs from Pseudomonas aeruginosa that are useful for treating cancer and other conditions in patients. These compositions are optionally in a pharmaceutically acceptable carrier and also optionally comprise a cupredoxin. The present invention further relates to methods to express proteins near cancer cells. These methods may be used to express therapeutic or diagnostic proteins near cancer cells in a patient suffering from cancer or other conditions, and can also be used for diagnosing cancer in a patient. This method uses the gene for azurin from P. aeruginosa as an expression system for azurin or heterologous proteins in P. aeruginosa or heterologous cells.
    Type: Application
    Filed: September 12, 2011
    Publication date: January 19, 2012
    Inventors: Tapas Das Gupta, Ananda Chakrabarty
  • Patent number: 8017749
    Abstract: The present invention relates to compositions comprising CpG rich DNA from Pseudomonas aeruginosa. The compositions optionally comprise a cupredoxin. The present invention includes specific CpG DNAs from Pseudomonas aeruginosa that are useful for treating cancer and other conditions in patients. These compositions are optionally in a pharmaceutically acceptable carrier and also optionally comprise a cupredoxin. The present invention further relates to methods to express proteins near cancer cells. These methods may be used to express therapeutic or diagnostic proteins near cancer cells in a patient suffering from cancer or other conditions, and can also be used for diagnosing cancer in a patient. This method uses the gene for azurin from P. aeruginosa as an expression system for azurin or heterologous proteins in P. aeruginosa or heterologous cells.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: September 13, 2011
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Tapas Das Gupta, Ananda Chakrabarty
  • Publication number: 20110070217
    Abstract: The present invention relates to cupredoxin, specifically Pseudomonas aeruginosa azurin, and/or Pseudomonas aeruginosa cytochrome c551 and their use in inhibiting of viral infection, and in particular infection of mammalian cells by the Human Immunodeficiency Virus (HIV). The invention also relates to variants and derivatives of cupredoxin and cytochrome c that retain the ability to inhibit viral infection, and in particular infection by the Human Immunodeficiency Virus (HIV). The invention also relates to research methods for studying viral and bacterial infection in mammalian cells.
    Type: Application
    Filed: September 13, 2010
    Publication date: March 24, 2011
    Inventors: ANANDA CHAKRABARTY, TAPAS DAS GUPTA, TOHRU YAMADA, ANITA CHAUDHARI, ARSENIO FIALHO, CHANG SOO HONG
  • Publication number: 20110016585
    Abstract: The present disclosure relates to isolated polynucleotides encoding a delta 9-elongase, delta 9-elongases encoded by the isolated polynucleotides, expression vectors comprising the isolated polynucleotides, host cells comprising the expression vectors, and methods for producing delta 9-elongase and polyunsaturated fatty acids.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 20, 2011
    Applicant: ABBOTT LABORATORIES
    Inventors: Suzette Pereira, Tapas Das, Padmavathy Krishnan, Pradip Mukerji
  • Publication number: 20110003351
    Abstract: The subject invention relates to the identification of genes involved in the desaturation of polyunsaturated fatty acids at carbon 5 (i.e., “?5-desaturase”) and at carbon 6 (i.e., “?6-desaturase”) and to uses thereof. In particular, ?5-desaturase may be utilized, for example, in the conversion of dihomo-?-linolenic acid (DGLA) to arachidonic acid (AA) and in the conversion of 20:4n-3 to eicosapentaenoic acid (EPA). Delta-6 desaturase may be used, for example, in the conversion of linoleic (LA) to ?-linolenic acid (GLA). AA or polyunsaturated fatty acids produced therefrom may be added to pharmaceutical compositions, nutritional compositions, animal feeds, as well as other products such as cosmetics.
    Type: Application
    Filed: September 9, 2010
    Publication date: January 6, 2011
    Applicant: ABBOTT LABORATORIES
    Inventors: Pradip Mukerji, Yung-Sheng Huang, Tapas Das, Jennifer Thurmond, Suzette L. Pereira
  • Publication number: 20110003360
    Abstract: The subject invention relates to the identification of genes involved in the desaturation of polyunsaturated fatty acids at carbon 5 (i.e., “?5-desaturase”) and at carbon 6 (i.e., “?6-desaturase”) and to uses thereof. In particular, ?5-desaturase may be utilized, for example, in the conversion of dihomo-?-linolenic acid (DGLA) to arachidonic acid (AA) and in the conversion of 20:4n-3 to eicosapentaenoic acid (EPA). Delta-6 desaturase may be used, for example, in the conversion of linoleic (LA) to ?-linolenic acid (GLA). AA or polyunsaturated fatty acids produced therefrom may be added to pharmaceutical compositions, nutritional compositions, animal feeds, as well as other products such as cosmetics.
    Type: Application
    Filed: September 9, 2010
    Publication date: January 6, 2011
    Applicant: ABBOTT LABORATORIES
    Inventors: Pradip Mukerji, Yung-Sheng Huang, Tapas Das, Jennifer Thurmond, Suzette L. Pereira
  • Publication number: 20100273187
    Abstract: Disclosed are antibodies that specifically recognize ?5-desaturase, methods of producing the antibodies, nucleotides and polypeptides for producing the antibodies, and methods of using the antibodies. The ?5-desaturase-specific antibodies provide improved methods of detecting ?5-desaturase in a sample.
    Type: Application
    Filed: January 13, 2010
    Publication date: October 28, 2010
    Applicant: ABBOTT LABORATORIES
    Inventors: Tapas Das, Suzette L. Pereira, Pradip Mukerji, Padmavathy Krishnan
  • Publication number: 20100267608
    Abstract: The present invention provides modified cupredoxin derived peptides with pharmacologic activity that have improved pharmacokinetic properties, and methods to use them to treat mammals suffering from various conditions related to the pharmacologic activities. Modifications of the cupredoxin derived peptides include amino acid sequence variants and structural derivations that increase the plasma half-life of the peptide, increase the specific activity of the pharmacologic activity, decrease immunogenicity, and decrease the biotransformation of the peptides. The modified cupredoxin derived peptides can be used in methods to treat mammals for cancer, conditions related to inappropriate angiogenesis, viral and bacterial infections, and specifically HIV and malaria, conditions related to ephrin signaling, and to deliver cargo compounds, including diagnostic compounds, to cancer cells.
    Type: Application
    Filed: September 11, 2007
    Publication date: October 21, 2010
    Inventors: Tapas Das Gupta, Ananda Chakrabarty
  • Patent number: 7795410
    Abstract: The present invention relates to cupredoxin, specifically Pseudomonas aeruginosa azurin, and/or Pseudomonas aeruginosa cytochrome c551 and their use in inhibiting of viral infection, and in particular infection of mammalian cells by the Human Immunodeficiency Virus (HIV). The invention also relates to variants and derivatives of cupredoxin and cytochrome c that retain the ability to inhibit viral infection, and in particular infection by the Human Immunodeficiency Virus (HIV). The invention also relates to research methods for studying viral and bacterial infection in mammalian cells.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: September 14, 2010
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Ananda Chakrabarty, Tapas Das Gupta, Tohru Yamada, Anita Chaudhari, Arsenio Fialho, Chang Soo Hong
  • Publication number: 20100209355
    Abstract: The present invention discloses methods and materials for delivering a cargo compound into a cancer cell. Delivery of the cargo compound is accomplished by the use of protein transduction domains derived from cupredoxins. The invention further discloses methods for treating cancer and diagnosing cancer.
    Type: Application
    Filed: April 5, 2010
    Publication date: August 19, 2010
    Inventors: Ananda Chakrabarty, Tapas Das Gupta, Tohru Yamada, Arsenio Fialho
  • Patent number: 7740857
    Abstract: The present invention relates to cupredoxin and cytochrome and their use, separately or together, to inhibit the spread of parasitemia in mammalian red blood cells and other tissues infected by the malaria parasite, and in particular the parasitemia of human red blood cells by P. falciparum. The invention provides isolated peptides that are variants, derivatives or structural equivalents of cupredoxins or cytochrome c, and compositions comprising cupredoxins and/or cytochrome c, or variants, derivatives or structural equivalents thereof, that are useful for treating or preventing malaria infection in mammals. Further, the invention provides methods to treat mammalian patients to prevent or inhibit the growth of malarial infection in mammals. The invention also provides methods to prevent the growth of malaria infection in insect vectors.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: June 22, 2010
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Ananda Chakrabarty, Tapas Das Gupta, Tohru Yamada, Anita Chaudhari, Arsenio Fialho, Chang Soo Hong
  • Publication number: 20100154080
    Abstract: The present invention is related to isolated polynucleotides encoding a delta-8 desaturase, delta-8 desaturases encoded by the isolated polynucleotides, expression vectors containing the isolated polynucleotides, host cells containing the expression vectors and methods for producing delta-8 desaturases and polyunsaturated fatty acids.
    Type: Application
    Filed: October 6, 2009
    Publication date: June 17, 2010
    Applicant: ABBOTT LABORATORIES
    Inventors: Tapas Das, Pradip Mukerji, Padmavathy Krishnan, Suzette L. Pereira
  • Publication number: 20100087377
    Abstract: The present invention relates to compositions comprising peptides that may be variants, derivatives and structural equivalents of cupredoxins that inhibit the development of premalignant lesions in mammalian cells, tissues and animals. Specifically, these compositions may comprise azurin from Pseudomonas aeruginosa, and/or the 50-77 residue region of azurin (p28). The present invention further relates to compositions that may comprise cupredoxin(s), and/or variants, derivatives or structural equivalents of cupredoxins, that retain the ability to inhibit the development of premalignant lesions in mammalian cells, tissues or animals. These compositions may be peptides or pharmaceutical compositions, among others. The compositions of the invention may be used to prevent the development of premalignant lesions in mammalian cells, tissues and animals, and thus prevent cancer.
    Type: Application
    Filed: November 13, 2009
    Publication date: April 8, 2010
    Inventors: Tapas Das Gupta, Ananda Chakrabarty
  • Patent number: 7691383
    Abstract: The present invention discloses methods and materials for delivering a cargo compound into a cancer cell. Delivery of the cargo compound is accomplished by the use of protein transduction domains derived from cupredoxins. The invention further discloses methods for treating cancer and diagnosing cancer.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: April 6, 2010
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Ananda Chakrabarty, Tapas Das Gupta, Tohru Yamada, Arsenio Fialho
  • Patent number: 7618939
    Abstract: The present invention relates to compositions comprising peptides that may be variants, derivatives and structural equivalents of cupredoxins that inhibit the development of premalignant lesions in mammalian cells, tissues and animals. Specifically, these compositions may comprise azurin from Pseudomonas aeruginosa, and/or the 50-77 residue region of azurin (p28). The present invention further relates to compositions that may comprise cupredoxin(s), and/or variants, derivatives or structural equivalents of cupredoxins, that retain the ability to inhibit the development of premalignant lesions in mammalian cells, tissues or animals. These compositions may be peptides or pharmaceutical compositions, among others. The compositions of the invention may be used to prevent the development of premalignant lesions in mammalian cells, tissues and animals, and thus prevent cancer.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: November 17, 2009
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Tapas Das Gupta, Ananda Chakrabarty
  • Publication number: 20090265798
    Abstract: The subject invention relates to the identification of genes involved in the desaturation of polyunsaturated fatty acids at carbon 5 (i.e., “?5-desaturase”) and at carbon 6 (i.e., “?6-desaturase”) and to uses thereof. In particular, ?5-desaturase may be utilized, for example, in the conversion of dihomo-?-linolenic acid (DGLA) to arachidonic acid (AA) and in the conversion of 20:4n-3 to eicosapentaenoic acid (EPA). Delta-6 desaturase may be used, for example, in the conversion of linoleic (LA) to ?-linolenic acid (GLA). AA or polyunsaturated fatty acids produced therefrom may be added to pharmaceutical compositions, nutritional compositions, animal feeds, as well as other products such as cosmetics.
    Type: Application
    Filed: May 7, 2007
    Publication date: October 22, 2009
    Inventors: Pradip Mukerji, Yung-Sheng Huang, Tapas Das, Jennifer Thurmond, Suzette L. Pereira
  • Publication number: 20090226405
    Abstract: The present invention relates to compositions comprising CpG rich DNA from Pseudomonas aeruginosa. The compositions optionally comprise a cupredoxin. The present invention includes specific CpG DNAs from Pseudomonas aeruginosa that are useful for treating cancer and other conditions in patients. These compositions are optionally in a pharmaceutically acceptable carrier and also optionally comprise a cupredoxin. The present invention further relates to methods to express proteins near cancer cells. These methods may be used to express therapeutic or diagnostic proteins near cancer cells in a patient suffering from cancer or other conditions, and can also be used for diagnosing cancer in a patient. This method uses the gene for azurin from P. aeruginosa as an expression system for azurin or heterologous proteins in P. aeruginosa or heterologous cells.
    Type: Application
    Filed: December 4, 2007
    Publication date: September 10, 2009
    Inventors: Tapas Das Gupta, Ananda Chakrabarty
  • Publication number: 20090215692
    Abstract: The present invention relates to compositions and methods comprising chemopreventive agents that may be cupredoxin(s) or variants, derivatives and structural equivalents of cupredoxins, and at least one other chemopreventive agent. Specifically, these compositions may comprise azurin from Pseudomonas aeruginosa, and/or the 50-77 residue region of azurin (p28). The at least one other chemopreventive agent may comprise an antiestrogen such as Tamoxifen. The compositions of the invention may be used to prevent the development of premalignant lesions in mammalian cells, tissues and animals, and thus prevent cancer.
    Type: Application
    Filed: December 17, 2008
    Publication date: August 27, 2009
    Inventors: Tapas Das Gupta, Rajendra G. Mehta, Rajeshwari Mehta, Craig Beattie
  • Publication number: 20090208476
    Abstract: The present invention relates to compositions and methods to administer compositions comprising cupredoxin and/or cytochrome and/or variants, derivatives, truncations and structural equivalents of cupredoxin and cytochrome to treat and/or prevent two or more conditions in a mammalian cell. The invention also relates to compositions and methods to administer compositions comprising cupredoxin and/or cytochrome and/or variants, derivatives, truncations and structural equivalents of cupredoxin and cytochrome to concurrently treat and/or prevent two or more conditions in a patient such as HIV, cancer, malaria and inappropriate angiogenesis.
    Type: Application
    Filed: December 15, 2008
    Publication date: August 20, 2009
    Inventors: Tapas Das Gupta, Ananda Chakrabarty
  • Publication number: 20090202441
    Abstract: The present invention discloses methods and materials for killing and/or inhibiting the growth of a cancer cell via preferential entry of a cytotoxic compound. Preferential entry of the cytotoxic compound is accomplished by the use of protein transduction domains derived from cupredoxins, including the p18 and p28 truncations of azurin.
    Type: Application
    Filed: December 18, 2008
    Publication date: August 13, 2009
    Inventors: Brad N. Taylor, Rajeshwari Mehta, Tohru Yamada, Craig Beattie, Tapas Das Gupta