Patents by Inventor Peter Bohlen

Peter Bohlen 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).

  • Patent number: 5464774
    Abstract: Substantially pure mammalian basic fibroblast growth factors are produced. The amino acid residue sequences of bovine and human bFGF are disclosed as well as a DNA chain encoding the polypeptide of the bovine species. By appropriately inserting a synthesized DNA chain into a cloning vector and using the cloning vector to transform cells, synthetic bovin bFGF can be obtained from transformed cell lines, both prokaryotic and eukaryotic.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: November 7, 1995
    Assignee: The Salk Institute for Biological Studies
    Inventors: Andrew J. Baird, Frederick S. Esch, Denis Gospodarowicz, Peter Bohlen, Nicholas C. Ling
  • Patent number: 5387673
    Abstract: The present invention relates to novel fragments of basic fibroblast growth factor (bFGF). The mitogenic potency of one of these bFGF fragments, identified as HBF-2 is about 25-50 fold less than that of native bFGF but at least 10.sup.3 -10.sup.4 fold more active than that of previously reported synthetic fragments of bFGF. Therefore, the present invention provides the shortest fragment of bFGF that retains substantial biologic activity.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: February 7, 1995
    Assignee: American Cyanamid Company
    Inventors: Andrew P. Seddon, Peter Bohlen
  • Patent number: 5371206
    Abstract: The present invention relates to novel chimeric fibroblast growth factors (FGF) wherein the alanine at amino acid 3 and serine 5 of native human recombinant basic fibroblast growth factor are replaced with glutamic acid. The N-terminus sequence of the present chimeric FGFs identify homology with that of human acidic fibroblast growth factor. The mitogenic properties of the native human recombinant basic FGF are exhibited by the present chimeric FGFs, and they are efficiently expressed in E. coli at significantly greater yields that previously reported. Novel variants of this new glu.sup.3,5 basic fibroblast growth factor, such as those in which cysteine 78 and cysteine 96 are replaced, e.g., with serine or other amino acids, to produce stabilized versions of the glu.sup.3,5 basic FGF and eliminate disulfide scrambled forms, are also described.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: December 6, 1994
    Assignee: American Cyanamid Company
    Inventors: Andrew P. Seddon, Peter Bohlen, Yakov Gluzman
  • Patent number: 5310883
    Abstract: The present invention relates to novel chimeric fibroblast growth factors (FGF) wherein the alanine at amino acid 3 and serine 5 of native human recombinant basic fibroblast growth factor are replaced with glutamic acid. The N-terminus sequence of the present chimeric FGFs identify homology with that of human acidic fibroblast growth factor. The mitogenic properties of the native human recombinant basic FGF are exhibited by the present chimeric FGFs, and they are efficiently expressed in E. coli at significantly greater yields that previously reported. Novel variants of this new glu.sup.3,5 basic fibroblast growth factor, such as those in which cysteine 78 and cysteine 96 are replaced, e.g., with serine or other amino acids, to produce stabilized versions of the glu.sup.3,5 basic FGF and eliminate disulfide scrambled forms, are also described.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: May 10, 1994
    Assignee: American Cyanamid Company
    Inventors: Andrew P. Seddon, Peter Bohlen, Yakov Gluzman
  • Patent number: 5302702
    Abstract: The present invention relates to novel chimeric fibroblast growth factors (FGF) wherein the alanine at amino acid 3 and serine 5 of native human recombinant basic fibroblast growth factor are replaced with glutamic acid. The N-terminus sequence of the present chimeric FGFs identify homology with that of human acidic fibroblast growth factor. The mitogenic properties of the native human recombinant basic FGF are exhibited by the present chimeric FGFs, and they are efficiently expressed in E. coli at significantly greater yields that previously reported. Novel variants of this new glu.sup.3,5 basic fibroblast growth factor, such as those in which cysteine 78 and cysteine 96 are replaced, e.g., with serine or other amino acids, to produce stabilized versions of the glu.sup.3,5 basic FGF and eliminate disulfide scrambled forms, are also described.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: April 12, 1994
    Assignee: American Cyanamid Company
    Inventors: Andrew P. Seddon, Peter Bohlen, Yakov Gluzman
  • Patent number: 5270449
    Abstract: A group of growth factors, designated heparin-binding brain mitogens (HBBMs), is disclosed. The HBBMs are isolated from brain tissue by a sequence of purification steps. The growth factors may be useful in the promotion of angiogenesis, such as in the promotion of wound healing, bone healing and in the treatment of burns, as well as in promoting the formation, maintenance and repair of tissue, in particular, neural tissue.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: December 14, 1993
    Assignee: American Cyanamid Company
    Inventors: Peter Bohlen, Peter Gautschi-Sova
  • Patent number: 5210026
    Abstract: The invention relates to novel DNA and amino sequences for a human MK protein. Also described are expression vectors and host cells useful in a method for production of the MK protein.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: May 11, 1993
    Assignee: American Cyanamid Company
    Inventors: Imre Kovesdi, Peter Bohlen
  • Patent number: 5206354
    Abstract: The present invention relates to novel fragments of basic fibroblast growth factor (bFGF). The mitogenic potency of one of these bFGF fragments, identified as HBF-2 is about 25-50 fold less than that of native bFGF but at least 10.sup.3 -10.sup.4 fold more active than that of previously reported synthetic fragments of bFGF. Therefore, the present invention provides the shortest fragment of bFGF that retains substantial biologic activity.
    Type: Grant
    Filed: November 23, 1990
    Date of Patent: April 27, 1993
    Assignee: American Cyanamid Company
    Inventors: Andrew P. Seddon, Peter Bohlen
  • Patent number: 5171842
    Abstract: A group of growth factors, designated heparin-binding brain mitogens (HBBMs), is disclosed. The HBBMs are isolated from brain tissue by a sequence of purification steps.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: December 15, 1992
    Assignee: American Cyanamid Company
    Inventors: Peter Bohlen, Peter Gautschi-Sova
  • Patent number: 5155214
    Abstract: Substantially pure mammalian basic fibroblast growth factors are produced. The amino acid residue sequences of bovine and human bFGF are disclosed as well as a DNA chain encoding the polypeptide of the bovine species. By appropriately inserting a synthesized DNA chain into a cloning vector and using the cloning vector to transform cells, synthetic bFGF can be obtained from transformed cell lines, both prokaryotic and eukaryotic.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: October 13, 1992
    Assignee: The Salk Institute for Biological Studies
    Inventors: Andrew J. Baird, Frederick S. Esch, Denis Gospodarowicz, Peter Bohlen, Nicholas C. Ling
  • Patent number: 4956455
    Abstract: Substantially pure bovine pituitary fibroblast growth factor, a 146 amino acid residue polypeptide, is produced. The amino acid residue sequence of bpFGF is disclosed as well as a DNA chain encoding the polypeptide. By appropriately inserting a synthesized DNA chain into a cloning vector and using the cloning vector to transform cells, synthetic bpFGF can be obtained from transformed cell lines, both prokaryotic and eukaryotic.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: September 11, 1990
    Assignee: The Salk Institute for Biological Studies
    Inventors: Andrew Baird, Frederick S. Esch, Peter Bohlen, Denis Gospodarowicz, Nicholas C. Ling
  • Patent number: 4902782
    Abstract: Basic Fibroblast Growth Factor (FGF) is substantially purified by the employment of affinity chromatography using heparin-linked support material. Described is a simplified three step procedure for extracting basic FGF from either mammalian brain or mammalian pituitary tissue. Salt precipitation, e.g., with ammonium sulfate is used to provide a partially purified precipitate that is then subjected to ion-exchange chromatography, e.g., using a Carboxymethyl-Sephadex column. Substantially pure basic FGF fractions are then obtained by fractionating the further partially purified fractions using affinity chromatography on a heparin-linked support e.g., Heparin-Sepharose.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: February 20, 1990
    Assignee: The Salk Institute for Biological Studies
    Inventors: Denis Gospodarowicz, Andrew Baird, Peter Bohlen
  • Patent number: 4785079
    Abstract: Basic Fibroblast Growth Factor (FGF) is substantially purified by the employment of affinity chromatography using heparin-linked support material. Described is a simplified three step procedure for extracting basic FGF from either mammalian brain or mammalian pituitary tissue. Salt precipitation, e.g., with ammonium sulfate is used to provide a partially purified precipitate that is then subjected to ion-exchange chromatography, e.g., using a Carboxymethyl-Sephadex column. Substantially pure basic FGF fractions are then obtained by fractionating the further partially purified fractions using affinity chromatography on a heparin-linked support e.g., Heparin-Sepharose.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: November 15, 1988
    Assignee: The Salk Institute for Biological Studies
    Inventors: Denis Gospodarowicz, Andrew Baird, Peter Bohlen
  • Patent number: 4675383
    Abstract: Substantially homogenous T-cell growth factor is isolated. A multiple-step purification procedure of T-cell growth factor-containing biological sample includes at least one reverse-phase HPLC fractionation using a C3 to C5 silica gel stationary phase. A preferred pre-purification protocol includes concentration of the biological sample on a semipermeable medium followed by gel filtration and semi-preparative reverse-phase HPLC on a hydrophobic stationary phase. Fractionating the pre-purified biological sample with two or three reverse-phase HPLC fractionations using C3 to C5 silica gel stationary phase yields T-cells growth factor of over 90% purity.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: June 23, 1987
    Assignee: The Salk Institute for Biological Studies
    Inventors: Peter Bohlen, Gunther Dennert
  • Patent number: 4610976
    Abstract: The invention provides synthetic peptides which are extremely potent in stimulating the release of pituitary GH in mammals and which have the formula: H-Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys-Val-Leu-Gly-Gln-Leu-Ser- Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Ser-Arg-Gln-Gln-Gly-Glu-Arg-Asn-Gln-Glu -Gln-Gly-Ala-Arg-Val-Arg-Leu-Y wherein Y is OH or NH.sub.2. These peptides or biologically active fragments thereof, or analogs thereof having well-known substitutions and, or additions, as well as nontoxic salts of any of the foregoing, may be administered therapeutically to mammals, including humans, and may be used diagnostically. The peptides are useful in stimulating the release of GH and accelerating growth in warm-blooded non-human animals, particularly pigs, and in improving aquiculture.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: September 9, 1986
    Assignee: The Salk Institute for Biological Studies
    Inventors: Peter Bohlen, Frederick S. Esch, Nicholas C. Ling, Paul E. Brazeau, Jr., Roger C. L. Guillemin
  • Patent number: 4605643
    Abstract: A synthetic peptide is extremely potent in stimulating the release of pituitary GH in mammals, particularly in sheep, since it is the replicate of the native (hormone) releasing factor of the sheep hypothalamus. It contains the following sequence: Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys-Ile-Leu-Gly-Gln-Leu-Ser-Al a-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Asn-Arg-Gln-Gln-Gly-Glu-Arg-Asn-Gln-Glu-G ln-Gly-Ala-Lys-Val-Arg-Leu. This peptide or a biologically active fragment thereof, or analogs thereof having well-known substitutions and/or additions, as well as nontoxic salts of any of the foregoing, may be administered therapeutically to mammals and may be used diagnostically. The peptide is particularly useful in stimulating the release of GH so as to accelerate growth in warm-blooded non-human animals, particularly sheep, and/or to improve aquiculture.
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: August 12, 1986
    Assignee: The Salk Institute for Biological Studies
    Inventors: Peter Bohlen, Paul E. Brazeau, Frederick S. Esch, Nicholas C. Ling, William B. Wehrenberg
  • Patent number: 4585756
    Abstract: The invention provides synthetic peptides which are extremely potent in stimulating the release of pituitary GH in mammals and which have the formula: H-Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys-Val-Leu-Gly-Gln-Leu-Ser- Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Asn-Arg-Gln-Gln-Gly-Glu-Arg-Asn-Gln-Glu -Gln-Gly-Ala-Lys-Val-Arg-Leu-Y wherein Y is OH or NH.sub.2. These peptides or biologically active fragments thereof, or analogs thereof having well-known substitutions and/or additions, as well as nontoxic salts of any of the foregoing, may be administered therapeutically to mammals, including humans, and may be used diagnostically. The peptides are useful in stimulating the release of GH so as to accelerate growth in warm-blooded non-human animals, particularly cattle, and/or to increase the production of milk in lactating cows, and also in improving aquiculture.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: April 29, 1986
    Assignee: The Salk Institute for Biological Studies
    Inventors: Paul E. Brazeau, Jr., Peter Bohlen, Frederick S. Esch, Nicholas C. Ling, Roger C. L. Guillemin
  • Patent number: 4517181
    Abstract: PGRF has been synthesized. The invention provides synthetic peptides which are extremely potent in stimulating the release of pituitary GH in mammals and which have the formula: ##STR1## wherein R is OH or NH.sub.2, R.sub.34 is Ser or Ala, R.sub.38 is Arg or Ser, R.sub.40 is Ala or Arg and R.sub.41 is Arg, Arg-Ala, Arg-Ala-Arg, Arg-Ala-Arg-Leu or des-R.sub.41. These peptides or biologically active fragments thereof, or analogs thereof having well-known substitutions and/or additions, as well as nontoxic salts of any of the foregoing, may be administered therapeutically to mammals, including humans, and may be used diagnostically.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: May 14, 1985
    Assignee: The Salk Institute for Biological Studies
    Inventors: Nicholas C. Ling, Frederick S. Esch, Peter Bohlen, Paul E. Brazeau, Jr., Roger C. L. Guillemin
  • Patent number: 4316891
    Abstract: 28-member residue and 25-member residue peptides have been synthesized containing the tetradecapeptide somatostatin that are more potent than somatostatin. Somatostatin-28 has the formula: ##STR1## The three N-terminal amino acid residues are absent in somatostatin-25. Somatostatin-28 or somatostatin-25 or a pharmaceutically acceptable addition salt thereof, dispersed in a pharmaceutically acceptable liquid or solid carrier, can be administered to mammals in the same manner as somatostatin.
    Type: Grant
    Filed: June 14, 1980
    Date of Patent: February 23, 1982
    Assignee: The Salk Institute for Biological Studies
    Inventors: Roger C. L. Guillemin, Nicholas C. Ling, Fred S. Esch, Peter Bohlen, Paul E. Brazeau, Jr.